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85 Ceti

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

{{Starbox begin

| name = 85 Ceti

}}

{{Starbox image

| image = 200px

| caption = Location 85 Ceti (HD 16861) within the Aries constellation (pink)

}}

{{Starbox observe

| epoch = J2000

| constell = Aries

| ra = {{RA|02|42|28.93647}}

| dec = {{DEC|+10|44|30.2137}}

| appmag_v = 6.30

}}

{{Starbox character

| class = A2 V

| r-i = 0.02

| v-r =

| b-v = +0.06

| u-b = +0.06

| variable =

}}

{{Starbox astrometry

| radial_v = +6.1

| prop_mo_ra = –22.88

| prop_mo_dec = –22.95

| parallax = 7.87

| p_error = 1.05

| parallax_footnote =

| absmag_v = +0.79

}}

{{Starbox detail

| mass = {{nowrap|2.38 ± 0.15}}

| radius =

| luminosity = 48

| temperature = 8,810

| metal_fe =

| rotational_velocity = 18

| age_myr =

}}

{{Starbox catalog

| names=BD+10°360, HD 16861, HIP 12647, HR 797, NSV 899, SAO 93067

}}

{{Starbox reference

|Simbad=85+Cet

}}

{{Starbox end}}

85 Ceti is an older Flamsteed designation for a star that is now within the borders of the northern constellation of Aries, the ram. In the present day it is known by star catalogue designations such as HD 16861 and HR 797. It has an apparent visual magnitude of 6.30 and is approximately {{Convert|410|ly|pc|abbr=off|lk=on}} distant from the Earth. This is an A-type main sequence star with a stellar classification of A2 V. It has 2.4 times the mass of the Sun and shines with 48 times the Sun's luminosity. This energy is being radiated into outer space from the star's outer atmosphere at an effective temperature of 8,810 K. This heat gives it the white-hued glow of an A-type star.

References

{{reflist|refs=

{{cite XHIP|12647}}

{{citation | first=F. | last=van Leeuwen |date=November 2007 | title=Validation of the new Hipparcos reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | arxiv=0708.1752 | s2cid=18759600 | postscript=. }}

{{citation | display-authors=1 | last1=Cowley | first1=A. | last2=Cowley | first2=C. | last3=Jaschek | first3=M. | last4=Jaschek | first4=C. | title=A study of the bright A stars. I. A catalogue of spectral classifications | journal=Astronomical Journal | volume=74 | pages=375–406 |date=April 1969 | doi=10.1086/110819 | bibcode=1969AJ.....74..375C | postscript=. }}

{{citation | last=Wilson | first=R. E. | date=1953 | title=General Catalogue of Stellar Radial Velocities | journal=Washington | publisher=Carnegie Institute of Washington D.C. | bibcode=1953GCRV..C......0W | postscript=. }}

{{citation | last1=Royer | first1=F. | last2=Zorec | first2=J. | last3=Gómez | first3=A. E. | title=Rotational velocities of A-type stars. III. Velocity distributions | journal=Astronomy and Astrophysics | volume=463 | issue=2 | pages=671–682 |date=February 2007 | doi=10.1051/0004-6361:20065224 | bibcode=2007A&A...463..671R | arxiv=astro-ph/0610785 | s2cid=18475298 | postscript=. }}

{{cite journal | display-authors=1 | last1=Johnson | first1=H. L. | last2=Iriarte | first2=B. | last3=Mitchell | first3=R. I. | last4=Wisniewskj | first4=W. Z. | title=UBVRIJKL photometry of the bright stars | journal=Communications of the Lunar and Planetary Laboratory | volume=4 | issue=99 | pages=99 | date=1966 | bibcode=1966CoLPL...4...99J }}

{{citation | last1=Zorec | first1=J. | last2=Royer | first2=F. | title=Rotational velocities of A-type stars. IV. Evolution of rotational velocities | journal=Astronomy & Astrophysics | volume=537 | page=A120 |date=January 2012 | doi=10.1051/0004-6361/201117691 | bibcode=2012A&A...537A.120Z | arxiv=1201.2052 | s2cid=55586789 | postscript=. }}

{{cite simbad | title=HD 16861 | access-date=2012-07-18}}

{{citation | last1=Hoffleit | first1=D. | title=Discordances in Star Designations | journal=Bulletin d'Information du Centre de Données Stellaires | volume=17 | issue=17 | page=38 |date=July 1979 | bibcode=1979BICDS..17...38H | postscript=. }}

{{citation|title=The Colour of Stars |date=December 21, 2004 |work=Australia Telescope, Outreach and Education |publisher=Commonwealth Scientific and Industrial Research Organisation |url=http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html |access-date=2012-01-16 |postscript=. |url-status=dead |archive-url=https://web.archive.org/web/20120318151427/http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html |archive-date=March 18, 2012 }}

{{citation | last1=Smart | first1=W. M. | title=The Ursa Major cluster, (Second paper) | journal=Monthly Notices of the Royal Astronomical Society | volume=99 | issue=9 | pages=710–722 |date=June 1939 | bibcode=1939MNRAS..99..710S | postscript=. | doi = 10.1093/mnras/99.9.710 | doi-access=free }} Page 712 of this reference links 85 Cet to B.S. 797; B.S., an abbreviation of the Bright Star Catalogue, was an earlier version of the Harvard Revised Photometry Catalogue, or HR. Hence, 85 Ceti is the same as HR 797.

}}

External links

  • [http://webviz.u-strasbg.fr/viz-bin/VizieR-S?HR%20797 HR 797]
  • [http://aladin.u-strasbg.fr/AladinPreview?-c=02+42+28.9356%2B10+44+30.209&ident=SV*+ZI+++144&submit=Aladin+previewer Image 85 Ceti]

{{Stars of Aries}}

{{DEFAULTSORT:85 Ceti}}

Ceti, 85

Category:A-type main-sequence stars

016861

012647

0797

Category:Durchmusterung objects