RX Leporis

{{Short description|Star in the constellation Lepus}}

{{Starbox begin

|name=RX Leporis

}}

{{Starbox image

|image=File:RX-Lep-Rigel.jpg

|caption=Red giant RX Lep is 4 degrees south of Rigel

}}

{{Starbox observe

|epoch=J2000

|ra={{RA|05|11|22.87}}

|dec={{DEC|-11|50|56.72}}

|appmag_v=5–7.4

|constell=Lepus

}}

{{Starbox character

|class=M6.2III

|b-v=

|u-b=

|variable=Semi-regular pulsating (SRB)

}}

{{Starbox astrometry

|radial_v=46.1

|prop_mo_ra=

|prop_mo_dec=

|parallax=6.71

|p_error=0.44

|parallax_footnote=

|absmag_v=

}}

{{Starbox detail

|mass=1–4

|radius=100–200

|luminosity=1500–4500

|temperature=3300

|metal=

|rotation=

|age=

}}

{{Starbox catalog

|names=HD 33664, HR 1693, HIP 24169, BD–12° 1092, SAO 150206

}}

{{Starbox reference

|Simbad=RX+Lep

}}

{{Starbox end}}

RX Leporis (RX Lep) is a star in the constellation of Lepus. It is a red giant and is a semi-regular pulsating star.

File:RXLepLightCurve.png light curve for RX Leporis. The main plot shows the long-term brightness variation, and the inset plot shows the short-term variation. Adapted from Percy et al. (2001)]]

It has an apparent magnitude that varies from about 5 to 7.4. At its brightest it is dimly visible to the naked eye, and at its dimmest can be located with binoculars. In the sky it is about 4 degrees south of Rigel and is located next to Iota Leporis.

See also

References

{{reflist

| refs =

{{cite journal |last1=Percy |first1=John R. |last2=Wilson |first2=Joseph B. |last3=Henry |first3=Gregory W. |title=Long-Term VRI Photometry of Small-Amplitude Red Variables. I. Light Curves and Periods |journal=Publications of the Astronomical Society of the Pacific |date=August 2001 |volume=113 |issue=786 |pages=983–996 |doi=10.1086/322153 |bibcode=2001PASP..113..983P |s2cid=14609175 |doi-access=free }}

{{cite web

|title=RX Leporis

|publisher=SIMBAD Astronomical Database

|url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=RX+Lep

|accessdate=2012-08-31}}

{{cite web

|title=GCVS Query=RX Lep

|publisher=General Catalogue of Variable Stars @ Sternberg Astronomical Institute, Moscow, Russia

|url=http://www.sai.msu.su/gcvs/cgi-bin/search.cgi?search=RX+Lep

|accessdate=2012-08-31}}

{{cite web

|title = RX Leporis

|publisher = AAVSO: Variable Star Plotter (VSP)

|url = http://ftp.aavso.org/vsp

|archive-url = https://archive.today/20110806194709/http://ftp.aavso.org/vsp

|url-status = dead

|archive-date = August 6, 2011

|accessdate = 2012-08-31

}}

{{cite web

|title=IOTA LEP (Iota Leporis) and RX Lep

|publisher=University of Illinois

|author=Jim Kaler

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

|accessdate=2012-08-31}}

}}