1 Arietis: Difference between revisions
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<ref name=aaa474_2_653>{{citation | first=F. | last=van Leeuwen | year=2007 | month=November | 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 | postscript=. }}</ref> |
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{{cite journal |
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| last=van Leeuwen | first=F. |
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| year=2007 |
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| title=Validation of the new Hipparcos reduction |
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| journal=[[Astronomy and Astrophysics]] |
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| volume=474 | issue=2 | pages=653–664 |
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| arxiv=0708.1752 |
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| bibcode=2007A&A...474..653V |
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| doi=10.1051/0004-6361:20078357 |
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}}</ref> |
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<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> |
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{{cite journal |
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| last=Wilson | first=R. E. |
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| year=1953 |
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| title=General Catalogue of Stellar Radial Velocities |
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| publisher=[[Carnegie Institution of Washington]] |
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| bibcode=1953QB901.W495..... |
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}}</ref> |
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<ref name=aass34_1>{{citation | last1=Nicolet | first1=B. | year=1978 | title=Photoelectric photometric Catalogue of homogeneous measurements in the UBV System | journal=Astronomy and Astrophysics Supplement Series | volume=34 | pages=1–49 | bibcode=1978A&AS...34....1N | postscript=. }}</ref> |
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<ref name=aass34_1> |
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{{cite journal |
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| last1=Nicolet | first1=B. |
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| year=1978 |
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| title=Photoelectric photometric Catalogue of homogeneous measurements in the UBV System |
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| journal=[[Astronomy and Astrophysics Supplement Series]] |
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| volume=34 | pages=1–49 |
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| bibcode=1978A&AS...34....1N |
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}}</ref> |
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<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 | postscript=. |arxiv = 0806.2878 }}</ref> |
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<ref name=mnras389_2_869> |
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{{cite journal |
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| last1=Eggleton | first1=P. P. |
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| last2=Tokovinin | first2=A. A. |
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| year=2008 |
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| title=A catalogue of multiplicity among bright stellar systems |
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| journal=[[Monthly Notices of the Royal Astronomical Society]] |
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| volume=389 | issue=2 | pages=869–879 |
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| arxiv = 0806.2878 |
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| bibcode=2008MNRAS.389..869E |
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| doi=10.1111/j.1365-2966.2008.13596.x |
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}}</ref> |
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<ref name=SIMBAD>{{citation | title=sig Ari -- Star | work=SIMBAD Astronomical Database | publisher=Centre de Données astronomiques de Strasbourg | url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Sigma+Arietis | accessdate=2012-07-18 | postscript=. }}</ref> |
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<ref name=SIMBAD> |
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{{cite simbad |
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|title=Sigma Arietis |
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|accessdate=2012-07-18 |
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}}</ref> |
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}} |
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Revision as of 20:09, 26 August 2012
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aries |
| Right ascension | 01h 50m 08.56984s[1] |
| Declination | +22° 16′ 31.2100″[1] |
| Apparent magnitude (V) | 5.86[2] (6.40/7.20)[3] |
| Characteristics | |
| Spectral type | K1 III + A6 V[3] |
| U−B color index | +0.50[2] |
| B−V color index | +0.74[2] |
| Astrometry | |
| Radial velocity (Rv) | +1[4] km/s |
| Proper motion (μ) | RA: –16.52[1] mas/yr Dec.: –8.25[1] mas/yr |
| Parallax (π) | 5.57 ± 0.75 mas[1] |
| Distance | approx. 590 ly (approx. 180 pc) |
| Other designations | |
| 1 Ari A: HD 11154. | |
| 1 Ari B: HD 11155. | |
1 Arietis is the Bayer designation for a double star[3] in the northern constellation of Aries. The pair have a combined visual magnitude of 5.86,[2] making it faintly visible to the naked eye. Based upon an annual parallax shift of 5.57 mas,[1] the distance to the two stars is approximately 590 light-years (180 parsecs). The brighter component is a magnitude 6.40 giant star with a stellar classification of K1 III. The companion star, at an angular separation of 2.873 arcseconds from the primary, is a magnitude 7.20 A-type main sequence star with a classification of A6 V.[3]
References
- ^ a b c d e f van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357.
{{citation}}: Unknown parameter|month=ignored (help) - ^ a b c d Nicolet, B. (1978), "Photoelectric photometric Catalogue of homogeneous measurements in the UBV System", Astronomy and Astrophysics Supplement Series, 34: 1–49, Bibcode:1978A&AS...34....1N.
- ^ a b c d 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) - ^ Wilson, Ralph Elmer (1953), General Catalogue of Stellar Radial Velocities, Washington: Carnegie Institution of Washington, Bibcode:1953QB901.W495......
- ^ "sig Ari -- Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2012-07-18.
