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Leo Minor

{{Short description|Constellation in the northern celestial hemisphere}}

{{Use dmy dates|date=May 2019}}

{{Use British English|date=November 2012}}

{{infobox constellation

| name = Leo Minor

| abbreviation = LMi

| genitive = Leonis Minoris

| pronounce = {{IPAc-en|ˌ|l|iː|oʊ|_|ˈ|m|aɪ|n|ər}} {{respell|LEE|oh|_|MY|nər}},
genitive {{IPAc-en|l|iː|ˌ|oʊ|n|ᵻ|s|_|m|ᵻ|ˈ|n|ɔr|ᵻ|s}} {{respell|lee|OH|niss|_|min|OR|iss}}

| symbolism = the lesser Lion

| RA = {{RA|9|22.4}} to {{RA|11|06.5}}

| dec= 22.84° to 41.43°{{sfn|IAU, The Constellations, Leo Minor}}

| family = Ursa Major

| quadrant = NQ2

| areatotal = 232

| arearank = 64th

| numbermainstars = 3

| numberbfstars = 34

| numberstarsplanets = 4

| numberbrightstars = 0

| numbernearbystars = 0

| brighteststarname = 46 LMi (Praecipua)

| starmagnitude = 3.83

| neareststarname = 11 LMijjj

| stardistancely = 36.46

| stardistancepc = 11.18

| numbermessierobjects = 0

| meteorshowers = Leonis Minorids

| bordering = Ursa Major
Lynx
Cancer (corner)
Leo

| latmax = 90

| latmin = 45

| month = April

| notes=

}}

Leo Minor is a small and faint constellation in the northern celestial hemisphere. Its name is Latin for "the smaller lion", in contrast to Leo, the larger lion. It lies between the larger and more recognizable Ursa Major to the north and Leo to the south. Leo Minor was not regarded as a separate constellation by classical astronomers; it was designated by Johannes Hevelius in 1687.{{sfn|Ridpath|Tirion|2001|pp=168–69}}

There are 37 stars brighter than apparent magnitude 6.5 in the constellation; three are brighter than magnitude 4.5. 46 Leonis Minoris, an orange giant of magnitude 3.8, is located some 95 light-years from Earth. At magnitude 4.4, Beta Leonis Minoris is the second-brightest star and the only one in the constellation with a Bayer designation. It is a binary star, the brighter component of which is an orange giant and the fainter a yellow-white main sequence star. The third-brightest star is 21 Leonis Minoris, a rapidly rotating white main-sequence star of average magnitude 4.5. The constellation also includes two stars with planetary systems, two pairs of interacting galaxies, and Hanny's Voorwerp, a unique deep-sky object.

History

The classical astronomers Aratus and Ptolemy had noted the region of what is now Leo Minor to be undefined and not containing any distinctive patterns; Ptolemy classified the stars in this area as amorphōtoi (not belonging to a constellation outline) within the constellation Leo.{{sfn|Allen|1963|p=263}}

Johannes Hevelius first depicted Leo Minor in 1687 when he outlined ten new constellations in his star atlas Firmamentum Sobiescianum,{{sfn|Ridpath, Star Tales Filling the remaining gaps}} and included 18 of its objects in the accompanying Catalogus Stellarum Fixarum.{{sfn|Hevelius|1687|pp=214–15}} Hevelius decided upon Leo Minor or Leo Junior as a depiction that would align with its beastly neighbours the Lion and the Great Bear.{{sfn|Wagman|2003|pp=189–90}} In 1845, English astronomer Francis Baily revised the catalogue of Hevelius's new constellations, and assigned a Greek letter known as Bayer designation to stars brighter than apparent magnitude 4.5.{{sfn|Wagman|2003|p=8}} Richard A. Proctor gave the constellation the name Leaena "the Lioness" in 1870,{{sfn|Allen|1963|p=263}} explaining that he sought to shorten the constellation names to make them more manageable on celestial charts.{{sfn|Proctor|1870|pp=16–17}}

German astronomer Christian Ludwig Ideler posited that the stars of Leo Minor had been termed Al Thibā' wa-Aulāduhā "Gazelle with her Young" on a 13th-century Arabic celestial globe, recovered by Cardinal Stefano Borgia and housed in the prelate's museum at Velletri.{{sfn|Allen|1963|p=42}}See also Mark R. Chartrand III (1983) Skyguide: A Field Guide for Amateur Astronomers, p. 158 ({{ISBN|0-307-13667-1}}). Arabist Friedrich Wilhelm Lach describes a different view, noting that they had been seen as Al Haud "the Pond", which the Gazelle jumps into.{{sfn|Allen|1963|p=263}} In Chinese astronomy, the stars Beta, 30, 37 and 46 Leonis Minoris made up Neiping, a "Court of Judge or Mediator", or Shi "Court Eunuch"{{sfn|Ridpath, Star Tales Leo Minor}} or were combined with stars of the neighbouring Leo to make up a large celestial dragon or State Chariot.{{sfn|Allen|1963|p=263}}See also Chartrand, at p. 158. A line of four stars was known as Shaowei; it represented four Imperial advisors and may have been located in Leo Minor, Leo or adjacent regions.{{sfn|Ridpath, Star Tales Leo Minor}}

Characteristics

A dark area of the sky with a triangle of brighter stars just visible to the naked eye in good conditions,{{sfn|Thompson|Thompson|2007|p=290}} Leo Minor has been described by Patrick Moore as having "dubious claims to a separate identity".{{sfn|Moore|2000|p=103}} It is a small constellation bordered by Ursa Major to the north, Lynx to the west, Leo to the south, and touching the corner of Cancer to the southwest. The three-letter abbreviation for the constellation, as adopted by the International Astronomical Union in 1922, is "LMi".{{sfn|Russell|1922|p=469}} The official constellation boundaries, as set by Belgian astronomer Eugène Delporte in 1930, are defined by a polygon of 16 sides. In the equatorial coordinate system, the right ascension coordinates of these borders lie between {{RA|9|22.4}} and {{RA|11|06.5}}, while the declination coordinates are between 22.84° and 41.43°.{{sfn|IAU, The Constellations, Leo Minor}} Ranked 64th out of 88 constellations in size, Leo Minor covers an area of 232.0 square degrees, or 0.562 per cent of the sky.{{sfn|Ridpath, Star Tales Constellations – part two}} It culminates each year at midnight on 24 February,{{sfn|Thompson|Thompson|2007|p=290}} and at 9 p.m. on 24 May.{{sfn|The Constellations : Part 2 Culmination Times}}

Notable features

=Stars=

{{See also|List of stars in Leo Minor}}

There are only three stars in the constellation brighter than magnitude 4.5,{{sfn|Wagman|2003|pp=189–90}} and 37 stars with a magnitude brighter than 6.5.{{sfn|Ridpath, Star Tales Constellations – part two}} Leo Minor does not have a star designated Alpha because Baily erred and allocated a Greek letter to only one star, Beta.{{sfn|Ridpath|Tirion|2001|pp=168–69}} It is unclear whether he intended to give 46 Leonis Minoris a Bayer designation, as he recognized Beta and 46 Leonis Minoris as of the appropriate brightness in his catalogue. He died before revising his proofs, which might explain this star's omission.{{sfn|Wagman|2003|pp=189–90}}

At magnitude 3.8, the brightest star in Leo Minor is an orange giant of spectral class K0III named 46 Leonis Minoris or Praecipua;{{sfn|SIMBAD 46 Leonis Minoris}} its colour is evident when seen through binoculars.{{sfn|Moore|2000|p=103}} Situated {{Convert|95|ly|pc|abbr=off|lk=on|sigfig=2}} from Earth,{{sfn|Ridpath|Tirion|2001|pp=168–69}} it has around 32 times the luminosity and is 8.5 times the size of the Sun.{{sfn|Kaler, Praecipua}} It was also catalogued and named as o Leonis Minoris by Johann Elert Bode, which has been misinterpreted as Omicron Leonis Minoris.{{sfn|Wagman|2003|pp=189–90}} More confusion occurred with its proper name Praecipua, which appears to have been originally applied to 37 Leonis Minoris in the 1814 Palermo Catalogue of Giuseppe Piazzi, who mistakenly assessed the latter star as the brighter. This name was later connected by Allen with 46 Leonis Minoris—an error perpetuated by subsequent astronomers.{{sfn|Ridpath, Star Tales Leo Minor}} The original "Praecipua", 37 Leonis Minoris, has an apparent magnitude of 4.69,{{sfn|SIMBAD 37 Leonis Minoris}} but is a distant yellow supergiant of spectral type G2.5IIa and absolute magnitude of −1.84,{{sfn| Kovtyukh et al.|2010}} around {{Convert|578|ly|pc|abbr=off|lk=off|sigfig=3}} distant.{{sfn|SIMBAD 37 Leonis Minoris}}

File:LeoMinorCC.jpg

Beta Leonis Minoris is a binary star system. The primary is a giant star of spectral class G9III{{cite journal|bibcode= 1989ApJS...71..245K |title= The Perkins Catalog of Revised MK Types for the Cooler Stars |journal= The Astrophysical Journal Supplement Series |volume= 71 |pages= 245 |last1= Keenan |first1= Philip C. |last2= McNeil |first2= Raymond C. |year= 1989 |doi= 10.1086/191373 }} and apparent magnitude of 4.4. It has around double the mass, 7.8 times the radius and 36 times the luminosity of the Earth's Sun. Separated by 0.1 to 0.6 second of arc from the primary, the secondary is a yellow-white main sequence star of spectral type F8. The two orbit around a common centre of gravity every 38.62 years,{{sfn|Kaler, Beta Leonis Minoris}} and lie {{Convert|154|ly|pc|abbr=off|lk=off|sigfig=2}} away from the Solar System.{{sfn|SIMBAD Beta Leonis Minoris}}

Around {{Convert|98|ly|pc|abbr=off|lk=off|sigfig=2}} away and around 10 times as luminous as the Sun, 21 Leonis Minoris is a rapidly rotating white main-sequence star, spinning on its axis in less than 12 hours and very likely flattened in shape.{{sfn|Kaler, 21 Leonis Minoris}} Of average apparent magnitude 4.5 and spectral type A7V, it is a Delta Scuti variable.{{sfn|SIMBAD 21 Leonis Minoris}} These are short period (six hours at most) pulsating stars which have been used as standard candles and as subjects to study asteroseismology.{{sfn|Delta Scuti and the Delta Scuti variables}}

File:Sidney Hall - Urania's Mirror - Leo Major and Leo Minor.jpg, a set of constellation cards published in London c. 1825{{sfn|Ridpath, Urania’s Mirror}}]]

Also known as SU and SV Leonis Minoris, 10 and 11 Leonis Minoris are yellow giants of spectral type G8III, with average magnitudes 4.54 and 5.34 respectively. Both are RS Canum Venaticorum variables,{{sfn|SIMBAD 10 Leonis Minoris}}{{sfn|SIMBAD 11 Leonis Minoris}} with 10 Leonis Minoris varying by 0.012 magnitude over 40.4 days, and 11 Leonis Minoris by 0.033 magnitude over 18 days.{{sfn| Skiff|Lockwood|1986}} 11 Leonis Minoris has a red dwarf companion of spectral type M5V and apparent magnitude 13.0.{{sfn|SIMBAD GJ 356 B}} 20 Leonis Minoris is a multiple star system {{Convert|49|ly|pc|abbr=off|lk=off|sigfig=2}} away from the Sun. The main star is another yellow star, this time a dwarf of spectral type G3Va and apparent magnitude 5.4.{{sfn|SIMBAD 20 Leonis Minoris}} The companion is an old, active red dwarf that has a relatively high metallicity and is of spectral type M6.5. The fact that the secondary star is brighter than expected indicates it is likely two stars very close together that are unable to be made out separately with current viewing technology.{{sfn|Gizis et al.|2000}}

R and S Leonis Minoris are long-period Mira variables, while U Leonis Minoris is a semiregular variable;{{sfn|Levy|2005|pp=186–87}} all three are red giants of spectral types M6.5e-M9.0e,{{sfn|SIMBAD R Leonis Minoris}} M5e {{sfn|SIMBAD S Leonis Minoris}} and M6 respectively.{{sfn|SIMBAD U Leonis Minoris}} R varies between magnitudes 6.3 and 13.2 during a period of 372 days, S varies between magnitudes 8.6 and 13.9 during a period of 234 days, and U varies between magnitudes 10.0 and 13.3 during a period of 272 days. The lack of bright stars makes finding these objects challenging for amateur astronomers.{{sfn|Levy|2005|pp=186–87}} G 117-B15A, also known as RY Leonis Minoris, is a pulsating white dwarf of apparent magnitude 15.5.{{sfn|SIMBAD RY Leonis Minoris}} With a period of approximately 215 seconds, and losing a second every 8.9 million years, the 400-million-year-old star has been proposed as the most stable celestial clock.{{sfn|McDonald Observatory}}

SX Leonis Minoris is a dwarf nova of the SU Ursae Majoris type that was identified in 1994.{{sfn|Nogami et al.|1997}} It consists of a white dwarf and a donor star, which orbit each other every 97 minutes. The white dwarf sucks matter from the other star onto an accretion disc and heats up to between 6000 and 10000 K. The dwarf star erupts every 34 to 64 days, reaching magnitude 13.4 in these outbursts and remaining at magnitude 16.8 when quiet.{{sfn|Wagner et al.|1998}} Leo Minor contains another dwarf nova, RZ Leonis Minoris, which brightens to magnitude 14.2 from a baseline magnitude of around 17 but does so at shorter intervals than other dwarf novae.{{sfn|Robertson et al.|1995}}

Two stars with planetary systems have been found. HD 87883 is an orange dwarf of magnitude 7.57 and spectral type K0V 18 parsecs distant from Earth. With a diameter three quarters that of Earth's sun, it is only 31 per cent as luminous. It is orbited by a planet around 1.78 times the mass of Jupiter every 7.9 years, and there are possibly other smaller planets.{{sfn|Fischer et al.|2009}} HD 82886 (Illyrian){{Cite web|url=https://www.nameexoworlds.iau.org/albania|title=Albania|website=NameExoWorlds|language=en|access-date=2019-12-18}} is a yellow dwarf of spectral type G0 and visual magnitude 7.63.{{sfn|SIMBAD HD 82886}} A planet 1.3 times the mass of Jupiter and orbiting every 705 days was discovered in 2011.{{sfn|Planet HD 82886 b}}

=Deep-sky objects=

File:A cosmological measuring tape.jpg which lies about 100 million light-years away.{{cite web | title=A cosmological measuring tape| url=http://www.spacetelescope.org/images/potw1513a/| access-date=16 June 2015}}]]

In terms of deep-sky objects, Leo Minor contains many galaxies viewable in amateur telescopes.{{sfn|Knoxville Observers – Leo Minor}} Located 3 degrees southeast of 38 Leonis Minoris, NGC 3432 is seen nearly edge on. It is of apparent magnitude 11.7 and measures 6.8 by 1.4 arcminutes.{{sfn|Thompson|Thompson|2007|p=290}} Located 42 million light-years away, it is moving away from the Solar System at a rate of 616 km per second. In 2000, a star within the galaxy brightened to magnitude 17.4, and has since been determined to be a luminous blue variable and supernova impostor.{{sfn|O'Meara|2011|p=196}} It has tidal filaments and intense star formation, so it was listed in Halton Arp's Atlas of Peculiar Galaxies.{{cite book|last=Arp|first=Halton|title=Atlas of Peculiar Galaxies|publisher=California Institute of Technology|location=Pasadena, California|year=1966|url=http://nedwww.ipac.caltech.edu/level5/Arp/Arp_contents.html|access-date=5 Jan 2010}} (webpage includes PDF link) NGC 3003, a SBbc barred spiral galaxy with an apparent magnitude of 12.3 and an angular size of 5.8 arcminutes, is seen almost edge-on.{{sfn|NED NGC 3003}} NGC 3344, 25 million light-years distant, is face-on towards Earth.{{sfn|galaxy in a spin}} Measuring 7.1 by 6.5 arcminutes in size, it has an apparent magnitude of 10.45.{{sfn|NED NGC 3344}} NGC 3504 is a starburst barred spiral galaxy of apparent magnitude 11.67 and measuring 2.1 by 2.7 arcminutes.{{sfn|NED NGC 3504}} It has hosted supernovae in 1998{{sfn|Garnavich|1998}} and 2001.{{sfn|Matheson et al.|2001}} It and the spiral galaxy NGC 3486 are also almost face-on towards Earth; the latter is of magnitude 11.05 and measures 7.1 by 5.2 arcminutes.{{sfn|NED NGC 3486}} NGC 2859 is an SB0-type lenticular galaxy.{{sfn|NED NGC 2859}}

At least two pairs of interacting galaxies have been observed. Arp 107 is a pair of galaxies in the process of merging, located 450 million light-years away.{{sfn|Spitzer Arp 107}} NGC 3395 and NGC 3396 are a spiral and irregular barred spiral galaxy, respectively, that are interacting, located 1.33 degrees southwest of 46 Leonis Minoris.{{sfn|Motz|Nathanson|1991|p=180}}

The unique deep-sky object known as Hanny's Voorwerp was discovered in Leo Minor in 2007 by Dutch school teacher Hanny van Arkel while participating as a volunteer in the Galaxy Zoo project. Lying near the 650-million-light-year-distant spiral galaxy IC 2497, it is around the same size as the Milky Way.{{sfn|Hubble Zooms in on a Space Oddity}} It contains a 16,000-light-year-wide hole.{{sfn|Radio observations shed new light on Hanny's Voorwerp}} The voorwerp is thought to be the visual light echo of a quasar now gone inactive,{{sfn|Rincon|2008}} possibly as recently as 200,000 years ago.{{sfn|Hubble Zooms in on a Space Oddity}}

=Meteor shower=

Discovered by Dick McCloskey and Annette Posen of the Harvard Meteor Program in 1959,{{sfn|Jenniskens|2006|pp=83–84}} the Leonis Minorid meteor shower peaks between 18 and 29 October. The shower's parent body is the long period comet C/1739 K1 (Zanotti).{{sfn|Jenniskens|2012}} It is a minor shower, and can only be seen from the Northern Hemisphere.{{sfn|IMO Meteor Shower Calendar 2012}}

=In Popular Culture=

The fact that Leo Minor was not a named constellation until 1687 provided proof that an alleged play by Euripides was in fact a forgery, in the Inspector Lewis episode "The Lions of Nemea".{{Citation needed|date=April 2025}}

See also

References

Citations

{{Reflist}}

Sources

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{{Refend}}

Online sources

{{Refbegin}}

  • {{cite web

|author = Baldwin, Emily

|title = Radio observations shed new light on Hanny's Voorwerp

|work = Astronomy Now

|publisher = Pole Star Publications Ltd.

|url = http://astronomynow.com/news/n1006/25voorwerp/

|access-date = 8 November 2012

|date = 25 June 2010

|ref = {{sfnRef|Radio observations shed new light on Hanny's Voorwerp}}

|url-status = dead

|archive-url = https://web.archive.org/web/20120308175047/http://astronomynow.com/news/n1006/25voorwerp/

|archive-date = 8 March 2012

}}

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| title = Delta Scuti and the Delta Scuti variables

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| date = 16 July 2010

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}}

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}}

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| url=https://exoplanet.eu/catalog/hd_82886_b--898/

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|work=Hubble website

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|archive-date=13 November 2017

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}}

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}}

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|access-date=8 November 2012

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|archive-date=28 June 2012

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}}

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| last = Kaler

| first = Jim

| title = Beta Leonis Minoris

| work = Stars

| publisher = University of Illinois

| url = http://stars.astro.illinois.edu/sow/betalmi.html

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}}

  • {{cite web

| last = Kaler

| first = Jim

| title = 21 Leonis Minoris

| work = Stars

| publisher = University of Illinois

| url = http://stars.astro.illinois.edu/sow/21lmi.html

| access-date = 15 October 2012

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}}

  • {{cite web

| last = Kaler

| first = Jim

| title = Praecipua

| work = Stars

| publisher = University of Illinois

| url = http://stars.astro.illinois.edu/sow/praecipua.html

| access-date = 15 October 2012

| ref = {{sfnRef|Kaler, Praecipua}}

}}

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|last = Grant

|first = Shawn

|title = Leo Minor

|work = Deepsky Online

|publisher = Knoxville Observers

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|access-date = 14 November 2012

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|archive-date = 1 April 2012

}}

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| title = Astronomers Find Most Stable Optical Clock in Heavens; Aids Understanding of Stars' Lives

| publisher = Phys.Org

| date = 5 December 2005

| url = http://www.spaceref.com/news/viewpr.html?pid=18424

| access-date = 22 October 2012

| ref = {{sfnRef|McDonald Observatory}}

| archive-date = 23 July 2020

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| url-status = dead

}}

  • {{cite web

| work=NASA/IPAC Extragalactic Database

| title=Results for NGC 2859

| author=Jet Propulsion Laboratory, California Institute of Technology

| publisher=National Aeronautics and Space Administration

| url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+2859&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES

| access-date=23 October 2012

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}}

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| work=NASA/IPAC Extragalactic Database

| title=Results for NGC 3003

| author=Jet Propulsion Laboratory, California Institute of Technology

| publisher=National Aeronautics and Space Administration

| url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+3003&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES

| access-date=23 October 2012

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}}

  • {{cite web

| work=NASA/IPAC Extragalactic Database

| title=Results for NGC 3344

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| publisher=National Aeronautics and Space Administration

| url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+3344&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES

| access-date=23 October 2012

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}}

  • {{cite web

| work=NASA/IPAC Extragalactic Database

| title=Results for NGC 3486

| author=Jet Propulsion Laboratory, California Institute of Technology

| publisher=National Aeronautics and Space Administration

| url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+3486&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES

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}}

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| work=NASA/IPAC Extragalactic Database

| title=Results for NGC 3504

| author=Jet Propulsion Laboratory, California Institute of Technology

| publisher=National Aeronautics and Space Administration

| url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+3504&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES

| access-date=23 October 2012

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}}

  • {{cite web

| last = Ridpath

| first = Ian

| author-link = Ian Ridpath

| date = 1988

| title = Urania's Mirror

| work = Old Star Atlases

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| access-date = 5 November 2012

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}}

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| first = Ian

| author-link = Ian Ridpath

| date = 1988

| title = Constellations – Part Two

| work = Star Tales

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}}

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| first = Ian

| author-link = Ian Ridpath

| date = 1988

| title = Leo Minor

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}}

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| first = Ian

| author-link = Ian Ridpath

| date = 1988

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}}

  • {{cite web |url= http://news.bbc.co.uk/1/hi/sci/tech/7543776.stm |title= Teacher finds new cosmic object |last= Rincon |first= Paul |work= BBC News |date= 5 August 2008 |access-date= 19 October 2012 }}
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| title = Beta Leonis Minoris

| work = SIMBAD Astronomical Database

| publisher = Centre de Données astronomiques de Strasbourg

| url = http://simbad.u-strasbg.fr/simbad/sim-id?Ident=bet+lmi&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id

| access-date = 8 November 2012

| ref = {{sfnRef|SIMBAD Beta Leonis Minoris}}

}}

  • {{cite web

| title = SU Leonis Minoris – Variable Star of RS CVn type

| work = SIMBAD Astronomical Database

| publisher = Centre de Données astronomiques de Strasbourg

| url = http://simbad.u-strasbg.fr/simbad/sim-id?Ident=10+LMi&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id

| access-date = 20 October 2012

| ref = {{sfnRef|SIMBAD 10 Leonis Minoris}}

}}

  • {{cite web

| title = SV Leonis Minoris – Variable Star of RS CVn type

| work = SIMBAD Astronomical Database

| publisher = Centre de Données astronomiques de Strasbourg

| url = http://simbad.u-strasbg.fr/simbad/sim-id?Ident=CCDM%20J09357%2B3549%20A

| access-date = 20 October 2012

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}}

  • {{cite web

| title = 21 Leonis Minoris – Variable Star of delta Sct type

| work = SIMBAD Astronomical Database

| publisher = Centre de Données astronomiques de Strasbourg

| url = http://simbad.u-strasbg.fr/simbad/sim-id?Ident=21+Leonis+Minoris&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id

| access-date = 15 October 2012

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}}

  • {{cite web

| title = 37 Leonis Minoris

| work = SIMBAD Astronomical Database

| publisher = Centre de Données astronomiques de Strasbourg

| url = http://simbad.u-strasbg.fr/simbad/sim-id?Ident=37+LMi&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id

| access-date = 5 November 2012

| ref = {{sfnRef|SIMBAD 37 Leonis Minoris}}

}}

  • {{cite web

| title = 46 Leonis Minoris – Variable Star

| work = SIMBAD Astronomical Database

| publisher = Centre de Données astronomiques de Strasbourg

| url = http://simbad.u-strasbg.fr/simbad/sim-id?Ident=46+LMi&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id

| access-date = 2 November 2012

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}}

  • {{cite web

| title = GJ 356 B – Star in double system

| work = SIMBAD Astronomical Database

| publisher = Centre de Données astronomiques de Strasbourg

| url = http://simbad.u-strasbg.fr/simbad/sim-id?Ident=CCDM%20J09357%2B3549%20B

| access-date = 20 October 2012

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}}

  • {{cite web

| title = HD 82886

| work = SIMBAD Astronomical Database

| publisher = Centre de Données astronomiques de Strasbourg

| url = http://simbad.u-strasbg.fr/simbad/sim-id?Ident=HD%2082886

| access-date = 19 October 2012

| ref = {{sfnRef|SIMBAD HD 82886}}

}}

  • {{cite web

| title = LHS 2216 – High Proper Motion Star

| work = SIMBAD Astronomical Database

| publisher = Centre de Données astronomiques de Strasbourg

| url = http://simbad.u-strasbg.fr/simbad/sim-id?Ident=20+Leonis+Minoris&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id

| access-date = 21 October 2012

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}}

  • {{cite web

| title = R Leonis Minoris – Variable Star of Mira Ceti type

| work = SIMBAD Astronomical Database

| publisher = Centre de Données astronomiques de Strasbourg

| url = http://simbad.u-strasbg.fr/simbad/sim-id?Ident=R+Leonis+Minoris&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id

| access-date = 22 October 2012

| ref = {{sfnRef|SIMBAD R Leonis Minoris}}

}}

  • {{cite web

| title = RY Leonis Minoris – Pulsating White Dwarf

| work = SIMBAD Astronomical Database

| publisher = Centre de Données astronomiques de Strasbourg

| url = http://simbad.u-strasbg.fr/simbad/sim-id?Ident=G117-B15A&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id

| access-date = 22 October 2012

| ref = {{sfnRef|SIMBAD RY Leonis Minoris}}

}}

  • {{cite web

| title = S Leonis Minoris – Variable Star of Mira Ceti type

| work = SIMBAD Astronomical Database

| publisher = Centre de Données astronomiques de Strasbourg

| url = http://simbad.u-strasbg.fr/simbad/sim-id?Ident=S+Lmi&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id

| access-date = 22 October 2012

| ref = {{sfnRef|SIMBAD S Leonis Minoris}}

}}

  • {{cite web

| title = U Leonis Minoris – Semi-regular pulsating Star

| work = SIMBAD Astronomical Database

| publisher = Centre de Données astronomiques de Strasbourg

| url = http://simbad.u-strasbg.fr/simbad/sim-id?Ident=U+Lmi&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id

| access-date = 22 October 2012

| ref = {{sfnRef|SIMBAD U Leonis Minoris}}

}}

  • {{cite web|url=https://www.spitzer.caltech.edu/image/sig05-006a-interacting-galaxy-pair-arp-107|title=Interacting Galaxy Pair Arp 107|date=9 June 2005|work=Spitzer Space Telescope website|publisher=Spitzer Science Center, California Institute of Technology|access-date=19 October 2012|ref={{sfnRef|Spitzer Arp 107}}}}

{{Refend}}

External links

{{Commons|Leo Minor}}

  • [http://www.allthesky.com/constellations/leominor/ The Deep Photographic Guide to the Constellations: Leo Minor]
  • [http://astrojan.nhely.hu/leominor.htm The clickable Leo Minor]

{{Stars of Leo Minor}}

{{Constellations}}

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Category:Northern constellations

Category:Constellations listed by Johannes Hevelius

Category:Constellations