| 词条 | Omicron Velorum |
| 释义 |
| name = ο Velorum }}{{Starbox image | image={{Location mark |image=Vela constellation map.svg|alt=|float=center|width=280 |label=|position=right |mark=Red circle.svg|mark_width=12|mark_link=ο Vel |x=731|y=608 }} |caption=Location of ο Velorum (circled) }}{{Starbox observe | epoch = J2000.0 | constell = Vela | ra = {{RA|08|40|17.58553}}[1] | dec = {{DEC|–52|55|18.8002}}[1] | appmag_v = +3.60[3] {{nowrap|(3.57 - 3.63[4])}} }}{{Starbox character | class = B3 IV[5] | b-v = –0.18[3] | u-b = –0.62[3] | variable = SPB[1] }}{{Starbox astrometry | radial_v = {{Val|+16.1|0.7}}[9] | prop_mo_ra = –24.42[1] | prop_mo_dec = +34.44[1] | absmag_v = −2.48[12] | parallax = 6.61 | p_error = 0.35 | parallax_footnote = [1] }}{{Starbox detail | mass = {{nowrap|5.5 ± 0.4}}[5] | gravity = {{nowrap|3.91 ± 0.20}}[5] | rotational_velocity = {{nowrap|9 ± 5}}[5] | radius = {{nowrap|4.3 ± 0.7}}[5] | luminosity = 1,000[5] | temperature = {{nowrap|16,200 ± 700}}[5] | metal_fe = }}{{Starbox catalog | names=CPD-52°1583, FK5 1227, HD 74195, HIP 42536, HR 3447, SAO 236164 }}{{Starbox reference | Simbad = Omicron+Velorum }}{{Starbox end}} Omicron Velorum (ο Vel, ο Velorum) is a star in the constellation Vela. It is the brightest member of the loose naked eye open cluster IC 2391, also known as the ο Velorum Cluster. Omicron Velorum is a blue-white B-type subgiant with a mean apparent magnitude of +3.60. It is approximately 495 light years from Earth. A slowly pulsating B star, it ranges between magnitudes 3.57 and 3.63 over 2.8 days.[1] The correct Bayer designation for ο Velorum has been debated. Lacaille assigned one Greek letter sequence for the bright stars of Argo Navis. These Lacaille designations are now shared across the three modern constellations of Carina, Puppis, and Vela so that the same Greek letter is not usually found in more than one of the three.[21][22] However, ο (omicron) is commonly used for stars in both Vela and Puppis. Some authors contend that Lacaille actually assigned a Latin lower case 'o' to this star, while others suggest that ο Puppis should actually be a lower case 'o'.[24] In the Coelum Australe Stelliferum itself, this star is labelled ο (omicron) Argus (du Navire in the French edition), while ο Puppis is labelled (Latin) o Argus in puppi (Pouppe du Navire in the French edition).[2][3] References1. ^1 2 {{cite journal|bibcode=2009yCat....102025S|title=VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)|journal=VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S|volume=1|display-authors=etal|author1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009}} [4][5][6][7][8][9][10][11]2. ^{{cite web|url=http://reader.digitale-sammlungen.de/en/fs1/object/display/bsb10049177_00195.html?zoom=0.7000000000000002|title=Coelum Australe Stelliferum|author=La Caille, Nicolas Louis de|accessdate=2017-07-21}} 3. ^{{cite web|url=http://gallica.bnf.fr/ark:/12148/bpt6k35505/f757.vertical|title=Coelum Australe Stelliferum|author=La Caille, Nicolas Louis de|accessdate=2017-07-21}} 4. ^1 {{cite book|last=Wagman|first=Morton|title=Lost Stars|page=259|publisher=McDonald and Woodward|year=2003|isbn=0-939923-78-5}} 5. ^1 {{cite journal|bibcode=2004yCat.4027....0K|title=VizieR Online Data Catalog: HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index (Kostjuk, 2002)|journal=VizieR On-line Data Catalog: IV/27A. Originally published in: Institute of Astronomy of Russian Academy of Sciences (2002)|volume=4027|author1=Kostjuk|first1=N. D.|year=2004}} 6. ^1 {{cite book|title=Coelum australe stelliferum ...|url=https://books.google.com/books?id=LIo_AAAAcAAJ&pg=PP7|year=1763|publisher=H L Guerin & L F Delatour|pages=7–}} 7. ^1 2 3 4 5 {{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 }} 8. ^1 2 3 4 5 6 7 {{citation | display-authors=1 | last1=Hubrig | first1=S. | last2=Briquet | first2=M. | last3=De Cat | first3=P. | last4=Schoeller | first4=M. | last5=Morel | first5=T. | last6=Ilyin | first6=I. | title=New magnetic field measurements of beta Cephei stars and Slowly Pulsating B stars | journal=Astronomische Nachrichten | volume=330 | issue=4 | page=317 |date=January 2009 | bibcode=2009AN....330..317H | arxiv=0902.1314 | doi=10.1002/asna.200811187 }} 9. ^1 2 3 {{citation | 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 | year=1966 | bibcode=1966CoLPL...4...99J }} 10. ^1 {{citation | last1=Gontcharov | first1=G. A. | title=Pulkovo Compilation of Radial Velocities for 35495 Hipparcos stars in a common system | journal=Astronomy Letters | volume=32| issue=11| pages=759–771| date=November 2006 | doi=10.1134/S1063773706110065 | bibcode=2006AstL...32..759G | arxiv=1606.08053 | postscript=. }} 11. ^1 {{citation | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | arxiv=1108.4971 | postscript=. }} }}{{Stars of Vela}} 8 : Bayer objects|B-type subgiants|Henry Draper Catalogue objects|Hipparcos objects|Slowly pulsating B stars|Vela (constellation)|HR objects|Durchmusterung objects |
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