Jump to content

Omega Aurigae: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous editNext edit →
Content deleted Content added
VisualWikitext
ZéroBot (talk | contribs)
704,777 edits
m r2.7.1) (Robot: Adding pt:Omega Aurigae
Data update w/ refs. and comments
Line 1: Line 1:
{{redirect|HR 1592|the legislation|Matthew Shepard Act}}
{{redirect|HR 1592|the legislation|Matthew Shepard Act}}
⚫
{{Starbox begin
{{No citations|date=June 2010}}
⚫
| name = Omega Aurigae
⚫
{{Starbox begin |
}}
⚫
name=Omega Aurigae }}
{{Starbox observe |
{{Starbox observe
epoch=J2000 |
| epoch = J2000
ra={{RA|04|59|15.4096}} |
| ra = {{RA|04|59|15.40974}}<ref name=aaa474_2_653/>
dec={{DEC|+37|53|24.881}} |
| dec = {{DEC|+37|53|24.8816}}<ref name=aaa474_2_653/>
appmag_v=4.989 |
| appmag_v = 4.95<ref name=clpl4_99/>
constell=[[Auriga (constellation)|Auriga]] }}
| constell = [[Auriga (constellation)|Auriga]]
}}
{{Starbox character |
{{Starbox character
| class = A1&nbsp;V<ref name=aaa294_2_536/>
class=A1V |
r-i = 0.03 |
| r-i = 0.03
v-r = |
| v-r =
b-v = 0.04 |
| b-v = +0.05<ref name=clpl4_99/>
u-b = 0.02 |
| u-b = +0.01<ref name=clpl4_99/>
variable= }}
| variable =
}}
{{Starbox astrometry |
{{Starbox astrometry
radial_v=5 |
| radial_v = +5<ref name=gcsrv/>
prop_mo_ra=46.26 |
| prop_mo_ra = +46.35<ref name=aaa474_2_653/>
prop_mo_dec=-97.81 |
| prop_mo_dec = -97.80<ref name=aaa474_2_653/>
parallax=20.5 |
| parallax = 20.5
p_error=0.94 |
| p_error = 0.94
| parallax_footnote = <ref name=aaa474_2_653/>
absmag_v=5.008 }}
| absmag_v =
⚫
{{Starbox detail|
}}
mass=3&ndash;4 |
⚫
{{Starbox detail
radius=2.1 |
| mass =
luminosity=20.6 |
| radius = 2.1–2.7<ref name=aaa367_521/>
temperature=7,500–10,000 |
| luminosity =
metal= |
| temperature = 9,230<ref name=aaa294_2_536/>
gravity= |
| metal_fe = –0.12<ref name=aaa294_2_536/>
⚫
rotational_velocity=83 |
| gravity = 4.33<ref name=aaa294_2_536/>
age= }}
⚫
| rotational_velocity = 107<ref name=aaa463_2_671/>
⚫
{{Starbox catalog |
| age_myr =
⚫
names=4 Aurigae, [[Henry Draper Catalogue|HD]] 31647, [[Bonner Durchmusterung|BD]]+37° 1005, [[Hipparcos Catalogue|HIP]] 23179, [[Bright Star Catalogue|HR]] 1592, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 57548, [[Index Catalogue of Visual Double Stars|IDS]] 04525+3744. }}
}}
{{Starbox reference |
⚫
{{Starbox catalog
Simbad=HD+31647
⚫
| names = 4 Aurigae, [[Bonner Durchmusterung|BD]]+37 1005, [[Henry Draper Catalogue|HD]] 31647, [[Hipparcos Catalogue|HIP]] 23179, [[Bright Star Catalogue|HR]] 1592, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 57548.<ref name=SIMBAD/>
| ARICNS = }}
}}
{{starbox sources|HIP|CCDM|HR}}
{{Starbox reference |
Simbad=ADS+3572 }}
{{Starbox end}}
{{Starbox end}}
'''4 Aurigae''' or '''Omega Aurigae''' ('''ω Aurigae''') is a [[star]] in the [[constellation]] [[Auriga (constellation)|Auriga]]. Its [[apparent magnitude]] is 4.93. Its distance from the [[Sun]] is 1,324,300&nbsp;km. Its luminosity is 20.6 x the Sun. Its apparent diameter is 154 deg. 48' 4.6''. Associated with EUVE J0459+37.8 is [[Ultraviolet|UV-emission source]] (ADS 3572A and ADS 3572B).
'''Omega Aurigae''' ('''ω Aurigae''') is the [[Bayer designation]] for a [[double star]]<ref name=mnras389_2_869/> in the northern [[constellation]] of [[Auriga (constellation)|Auriga]]. Its [[apparent magnitude]] is 4.95,<ref name=clpl4_99/> which is bright enough to be seen with the naked eye. The distance to this star, as determined using [[parallax]] measurements, is approximately {{Convert|159|ly|pc|abbr=off|lk=on}}.<ref name=aaa474_2_653/> This is an [[A-type main sequence star]] with a [[stellar classification]] of A1&nbsp;V.<ref name=aaa294_2_536/> It has a magnitude 8.18 companion at an [[angular separation]] of 4.99&nbsp;[[arcsecond]]s.<ref name=mnras389_2_869/>


==References==
==References==
{{reflist|refs=

<ref name=aaa474_2_653>{{citation | first1=Floor | last1=van Leeuwen | month=November | year=2007 | title=Validation of the new Hipparcos reduction | volume=474 | issue=2 | pages=653–664 | bibcode=2007A&A...474..653V | arxiv=0708.1752v1 | doi=10.1051/0004-6361:20078357 | journal=Astronomy and Astrophysics | postscript=. }} ''Note:'' see VizieR catalogue [http://vizier.u-strasbg.fr/viz-bin/Cat?I/311 I/311].</ref>

<ref name=aaa294_2_536>{{citation | last1=Hill | first1=G. M. | title=Compositional differences among the A-type stars. 2: Spectrum synthesis up to V sin i = 110 km/s | journal=Astronomy and Astrophysics | volume=294 | issue=2 | pages=536–546 | month=February | year=1995 | bibcode=1995A&A...294..536H | postscript=. }}</ref>

<ref name=gcsrv>{{citation | last=Wilson | first=Ralph Elmer | year=1953 | title=General Catalogue of Stellar Radial Velocities | publisher=Carnegie Institution of Washington | location=Washington | bibcode=1953QB901.W495..... | postscript=. }}</ref>

<ref name=aaa463_2_671>{{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 | month=February | year=2007 | doi=10.1051/0004-6361:20065224 | bibcode=2007A&A...463..671R | arxiv=astro-ph/0610785 | postscript=. }}</ref>

<ref name=clpl4_99>{{citation | last1=Johnson | display-authors=1 | 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 | year=1966 | bibcode=1966CoLPL...4...99J | postscript=. }}</ref>

<ref name=mnras389_2_869>{{citation | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869–879 | month=September | year=2008 | doi=10.1111/j.1365-2966.2008.13596.x | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | postscript=. }}</ref>

<ref name=aaa367_521>{{citation | display-authors=1 | last1=Pasinetti Fracassini | first1=L. E. | last2=Pastori | first2=L. | last3=Covino | first3=S. | last4=Pozzi | first4=A. | title=Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics | journal=Astronomy and Astrophysics | volume=367 | pages=521–524 | month=February | year=2001 | doi=10.1051/0004-6361:20000451 | bibcode=2001A&A...367..521P | arxiv=astro-ph/0012289 | postscript=. }}</ref>

<ref name=SIMBAD>{{citation | title=ome Aur -- 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=Omega+Aurigae | accessdate=2012-08-24 | postscript=. }}</ref>

}}

==External links==
* [http://webviz.u-strasbg.fr/viz-bin/VizieR-S?HR%201592 HR 1592]
* [http://webviz.u-strasbg.fr/viz-bin/VizieR-S?HR%201592 HR 1592]
* [http://aladin.u-strasbg.fr/AladinPreview?-c=04+59+15.4096%2B37+53+24.881&ident=*+ome+Aur&submit=Aladin+previewer Image Omega Aurigae]
* [http://aladin.u-strasbg.fr/AladinPreview?-c=04+59+15.4096%2B37+53+24.881&ident=*+ome+Aur&submit=Aladin+previewer Image Omega Aurigae]

Revision as of 01:39, 27 August 2012

"HR 1592" redirects here. For the legislation, see Matthew Shepard Act.
Omega Aurigae
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 04h 59m 15.40974s[1]
Declination +37° 53′ 24.8816″[1]
Apparent magnitude (V) 4.95[2]
Characteristics
Spectral type A1 V[3]
U−B color index +0.01[2]
B−V color index +0.05[2]
R−I color index 0.03
Astrometry
Radial velocity (Rv)+5[4] km/s
Proper motion (μ) RA: +46.35[1] mas/yr
Dec.: -97.80[1] mas/yr
Parallax (π)20.5 ± 0.94 mas[1]
Distance159 ± 7 ly
(49 ± 2 pc)
Details
Radius2.1–2.7[5] R☉
Surface gravity (log g)4.33[3] cgs
Temperature9,230[3] K
Metallicity [Fe/H]–0.12[3] dex
Rotational velocity (v sin i)107[6] km/s
Other designations
4 Aurigae, BD+37 1005, HD 31647, HIP 23179, HR 1592, SAO 57548.[7]

Omega Aurigae (ω Aurigae) is the Bayer designation for a double star[8] in the northern constellation of Auriga. Its apparent magnitude is 4.95,[2] which is bright enough to be seen with the naked eye. The distance to this star, as determined using parallax measurements, is approximately 159 light-years (49 parsecs).[1] This is an A-type main sequence star with a stellar classification of A1 V.[3] It has a magnitude 8.18 companion at an angular separation of 4.99 arcseconds.[8]

References

  1. ^ a b c d e f van Leeuwen, Floor (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752v1, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357. {{citation}}: Unknown parameter |month= ignored (help) Note: see VizieR catalogue I/311.
  2. ^ a b c d Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99), Bibcode:1966CoLPL...4...99J.
  3. ^ a b c d e Hill, G. M. (1995), "Compositional differences among the A-type stars. 2: Spectrum synthesis up to V sin i = 110 km/s", Astronomy and Astrophysics, 294 (2): 536–546, Bibcode:1995A&A...294..536H. {{citation}}: Unknown parameter |month= ignored (help)
  4. ^ Wilson, Ralph Elmer (1953), General Catalogue of Stellar Radial Velocities, Washington: Carnegie Institution of Washington, Bibcode:1953QB901.W495......
  5. ^ Pasinetti Fracassini, L. E.; et al. (2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics", Astronomy and Astrophysics, 367: 521–524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451. {{citation}}: Unknown parameter |month= ignored (help)
  6. ^ Royer, F.; Zorec, J.; Gómez, A. E. (2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics, 463 (2): 671–682, arXiv:astro-ph/0610785, Bibcode:2007A&A...463..671R, doi:10.1051/0004-6361:20065224. {{citation}}: Unknown parameter |month= ignored (help)
  7. ^ "ome Aur -- Star in double system", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2012-08-24.
  8. ^ a b Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x. {{citation}}: Unknown parameter |month= ignored (help)CS1 maint: unflagged free DOI (link)
Stub icon

This star-related article is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Omega_Aurigae&oldid=509347994"