Nu Persei
Yellow-white hued star in the constellation Perseus
title: "Nu Persei" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["f-type-bright-giants", "suspected-variables", "perseus-(constellation)", "bayer-objects", "flamsteed-objects", "durchmusterung-objects", "henry-draper-catalogue-objects", "hipparcos-objects", "bright-star-catalogue-objects"] description: "Yellow-white hued star in the constellation Perseus" topic_path: "general/f-type-bright-giants" source: "https://en.wikipedia.org/wiki/Nu_Persei" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Yellow-white hued star in the constellation Perseus ::
| image = |image=Perseus constellation map.svg|alt=|float=center|width=280 |label=|position=right |mark=Red circle.svg|mark_width=10|mark_link=Nu Persei |x=452|y=625 | caption = Location of ν Persei (circled) | epoch = J2000 | constell = Perseus | ra = | dec = | appmag_v = 3.80 | class = F5II | b-v = +0.42 | u-b = +0.28 | variable = suspected | radial_v = −12.10 | prop_mo_ra = −14.45 | prop_mo_dec = +2.53 | parallax = 5.86 | p_error = 0.22 | parallax_footnote = | absmag_v = −2.39 | mass = 5.01 | radius = | gravity = 3.04 | metal_fe = +0.41 | temperature = | luminosity = | rotational_velocity = 48.9 | age_myr = 109 | names = | Simbad = nu.+Persei
ν Persei, Latinized as Nu Persei, is a single star and a suspected variable in the northern constellation of Perseus. It has a yellow-white hue and is visible to the naked eye with an apparent visual magnitude of 3.80. This object is located approximately 560 light-years from the Sun based on parallax but is drifting closer with a radial velocity of −12 km/s.
This object is a highly luminous bright giant star with a stellar classification of F5II. It has five times the mass of the Sun but has expanded to around 21 times the Sun's radius. The star has a relatively high rotation rate, spinning with a projected rotational velocity of 48.9 km/s. It is radiating 604 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 6,300 K.
Several visual companions beside the primary have been recorded. B, with magnitude 12.1 and separation 31.6", has its own companion, E, with magnitude 14.3 and separation 7.7". Additionally, C has magnitude 13.2 and separation 55.7", and D has magnitude 13.8 and separation 22.8".
References
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| arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | title=Validation of the new Hipparcos reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | year=2007 | last1=Van Leeuwen | first1=F. | s2cid=18759600 }} Vizier catalog entry
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| last1=Hoffleit | first1=D. | last2=Warren | first2=W. H. | title=Bright Star Catalogue | edition=5th Revised | journal=VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H | volume=5050 | year=1995 | bibcode=1995yCat.5050....0H }}
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| display-authors=1 | last1=Hohle | first1=M.M. | last2=Neuhäuser | first2=R. | last3=Schutz | first3=B.F. | title=Masses and luminosities of O- and B-type stars and red supergiants | journal=Astronomische Nachrichten | volume=331 | issue=4 | pages=349 | year=2010 | doi=10.1002/asna.200911355 | arxiv=1003.2335 | bibcode=2010AN....331..349H | s2cid=111387483 }} Vizier catalog entry
| title=A catalog of rotational and radial velocities for evolved stars | journal=Astronomy and Astrophysics Supplement Series | volume=139 | issue=3 | pages=433 | year=1999 | last1=De Medeiros | first1=J. R. | last2=Mayor | first2=M. | doi=10.1051/aas:1999401 | arxiv=astro-ph/0608248 | bibcode=1999A&AS..139..433D
| display-authors=1 | last1=Mason | first1=Brian D. | last2=Wycoff | first2=Gary L. | last3=Hartkopf | first3=William I. | last4=Douglass | first4=Geoffrey G. | last5=Worley | first5=Charles E. | title=The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog | journal=The Astronomical Journal | volume=122 | issue=6 | pages=3466 | year=2001 | bibcode=2001AJ....122.3466M | doi=10.1086/323920 | doi-access=free }} Vizier catalog entry
| last1=Gontcharov | first1=G. A. | title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system | journal=Astronomy Letters | volume=32 | issue=11 | pages=759–771 | year=2006 | bibcode=2006AstL...32..759G | arxiv=1606.08053 | doi=10.1134/S1063773706110065 | s2cid=119231169
References
- "nu. Per".
- {{cite DR2. 243276881909549824
- (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S.
- (2010). "Accurate fundamental parameters for A-, F- and G-type Supergiants in the solar neighbourhood". Monthly Notices of the Royal Astronomical Society.
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