Nu Cassiopeiae

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title: "Nu Cassiopeiae" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["b-type-main-sequence-stars", "b-type-giants", "cassiopeia-(constellation)", "bayer-objects", "bright-star-catalogue-objects", "durchmusterung-objects", "flamsteed-objects", "henry-draper-catalogue-objects", "hipparcos-objects"] description: "B-type star in the constellation Cassiopeia" topic_path: "science/astronomy" source: "https://en.wikipedia.org/wiki/Nu_Cassiopeiae" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary B-type star in the constellation Cassiopeia ::

| name = Nu Cassiopeiae | image= |image=Cassiopeia IAU.svg|alt=|float=center|width=260 |label=|position=right |mark=Red circle.svg|mark_width=8|mark_link=ν Cas |x%=53.0|y%=67.0 | caption = Location of ν Cassiopeiae (circled) | epoch = J2000.0 | equinox = J2000.0 (ICRS) | constell = Cassiopeia | ra = | dec = | appmag_v = +4.89 | type = main sequence | class = B9 III or B8 V | b-v = −0.11 | u-b = −0.43 | variable = | radial_v = | prop_mo_ra = +29.453 | prop_mo_dec = −8.152 | pm_footnote = | parallax = 9.1537 | p_error = 0.2122 | parallax_footnote = | absmag_v = −0.60 | mass = 3.6 | radius = 2.8 | luminosity = 194 | temperature = | gravity = | metal_fe = | rotational_velocity = | age_myr = 197 | names = | Simbad = nu.+Cas Nu Cassiopeiae is a solitary star in the northern constellation of Cassiopeia. Its name is a Bayer designation that is Latinized from ν Cassiopeiae, and abbreviated Nu Cas or ν Cas. With an apparent visual magnitude of +4.89, it is a faint star but visible to the naked eye. Based upon an annual parallax shift of as seen from Earth, this star is located around 356 ly from the Sun. It is drifting further away with a line of sight velocity component of roughly +9 km/s.

Cowley et al. (1969) catalogued this star with a stellar classification of B9 III, indicating it has the spectrum of an evolved B-type giant star. However, Palmer et al. (1968) assigned it a class of B8 V, which would instead suggest it is an ordinary B-type main-sequence star. ::figure[src="https://upload.wikimedia.org/wikipedia/commons/5/5a/Nu_Cassiopeiae.jpg" caption="ν Cassiopeiae in optical light"] ::

References

| title=Photoelectric photometry of bright stars | last1=Häggkvist | first1=L. | last2=Oja | first2=T. | journal=Arkiv för Astronomi | postscript=. | volume=4 | pages=137–163 | year=1966 | bibcode=1966ArA.....4..137H }}

| last1=de Bruijne | first1=J. H. J. | last2=Eilers | first2=A.-C. | title=Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project | journal=Astronomy & Astrophysics | volume=546 | id=A61 | pages=14 | date=October 2012 | doi=10.1051/0004-6361/201219219 | bibcode=2012A&A...546A..61D | arxiv=1208.3048 | s2cid=59451347 | postscript=. }}

| last1=Palmer | first1=D. R. | last2=Walker | first2=E. N. | last3=Jones | first3=D. H. P. | last4=Wallis | first4=R. E. | title=The radial velocities spectral types and projected rotational velocities of 633 bright northern A stars | journal=Royal Observatory Bulletin | volume=135 | page=385 | year=1968 | bibcode=1968RGOB..135..385P | postscript=. }}

| 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 }}

| last1=Crawford | first1=D. L. | title=U, b, v, and Hβ Photometry for the Bright B8- and B9-TYPE Stars | journal=Astrophysical Journal | postscript=. | volume=137 | page=530 | date=February 1963 | doi=10.1086/147526 | bibcode=1963ApJ...137..530C | doi-access=free }}

| 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 | date=September 2008 | doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | postscript=. | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | s2cid=14878976 }}

| display-authors=1 | last1=Huang | first1=Wenjin | last2=Gies | first2=D. R. | last3=McSwain | first3=M. V. | title=A Stellar Rotation Census of B Stars: From ZAMS to TAMS | journal=The Astrophysical Journal | volume=722 | issue=1 | pages=605–619 | date=October 2010 | doi=10.1088/0004-637X/722/1/605 | bibcode=2010ApJ...722..605H | arxiv=1008.1761 | s2cid=118532653 | postscript=. }}

| 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=. }}

| title=nu. Cas | access-date=2017-08-30 | postscript=. }}

References

1. {{cite Gaia DR3. 415024618257029888
2. (2018). "The TESS Input Catalog and Candidate Target List". The Astronomical Journal.
3. {{cite XHIP. 3801
4. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters.

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