1 Cassiopeiae

{{Starbox begin

| name = 1 Cassiopeiae

}}

{{Starbox observe

| epoch = J2000.0

| constell = Cassiopeia

| ra = {{RA|23|06|36.818}}

| dec = {{DEC|+59|25|11.14}}

| appmag_v = +4.84

}}

{{Starbox character

| class = B0.5 III

| b-v = {{Val|−0.060|0.004}}

| u-b = −0.87

| variable =

}}

{{Starbox astrometry

| radial_v = {{Val|−9.1|0.9}}

| prop_mo_ra = {{Val|6.94|0.14}}

| prop_mo_dec = {{Val|−1.95|0.14}}

| parallax = 2.89

| p_error = 0.13

| parallax_footnote =

| absmag_v = −2.91

}}

{{Starbox detail

| mass = 13.1

| radius = 10.2

| luminosity = 18,200

| temperature = 27,200

| metal_fe = −0.40

| gravity = 3.98

| rotational_velocity = 31

| age_myr = {{Val|5.7|0.1}}

}}

{{Starbox catalog

| names = {{odlist | F=1 Cas | BD=+58°2545 | FK5=1201 | HD=218376 | HIP=114104 | HR=8797 | SAO=35147 }}

}}

1 Cassiopeiae is a single star in the northern constellation of Cassiopeia, located around 1,130 light years from the Sun. It is visible to the naked eye as a faint, blue-white hued star with an apparent visual magnitude of +4.84. This object is moving closer to the Earth with a heliocentric radial velocity of −9 km/s.

The stellar classification of 1 Cassiopeiae is B0.5 III, matching an evolved B-type giant star. It is 5.7 million years old with a projected rotational velocity of 31. The star has 13.1 times the mass of the Sun and 10.2 times the Sun's radius. It is radiating 18,200 times the Sun's luminosity from its photosphere at an effective temperature of 27,200 K.

References

{{reflist|refs=

{{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 | s2cid=119257644 }}

{{citation

| last1=Fitzpatrick | first1=E. L. | last2=Massa | first2=D.

| title=Determining the Physical Properties of the B Stars. II. Calibration of Synthetic Photometry

| journal=The Astronomical Journal

| volume=129 | issue=3 | pages=1642–1662

| doi=10.1086/427855 | bibcode=2005AJ....129.1642F

| arxiv=astro-ph/0412542 | date=March 2005 | s2cid=119512018 }}

{{citation | display-authors=1

| last1=Underhill | first1=A. B. | last2=Divan | first2=L.

| last3=Prevot-Burnichon | first3=M.-L. | last4=Doazan | first4=V.

| title=Effective temperatures, angular diameters, distances and linear radii for 160 O and B stars

| journal=Monthly Notices of the Royal Astronomical Society

| volume=189 | issue=3 | pages=601–605

| bibcode=1979MNRAS.189..601U | date=November 1979

| doi=10.1093/mnras/189.3.601 | doi-access=free }}

{{cite journal

| title=Validation of the new Hipparcos reduction

| last1=van Leeuwen | first1=F.

| journal=Astronomy and Astrophysics

| volume=474 | issue=2 | pages=653–664 | year=2007

| arxiv=0708.1752 | bibcode=2007A&A...474..653V

| doi=10.1051/0004-6361:20078357 | s2cid=18759600 }}[http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=113720 Vizier catalog entry ]

{{cite journal

| display-authors=1 | last1=Tetzlaff | first1=N.

| last2=Neuhäuser | first2=R. | last3=Hohle | first3=M. M.

| title=A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun

| journal=Monthly Notices of the Royal Astronomical Society

| volume=410 | issue=1 | pages=190–200 | date=January 2011

| doi=10.1111/j.1365-2966.2010.17434.x | doi-access=free | bibcode=2011MNRAS.410..190T

| arxiv=1007.4883 | s2cid=118629873 }}

{{cite journal

| display-authors=1

| last1=Zorec | first1=J. | last2=Cidale | first2=L.

| last3=Arias | first3=M. L. | last4=Frémat | first4=Y.

| last5=Muratore | first5=M. F. | last6=Torres | first6=A. F.

| last7=Martayan | first7=C. | last8=Martayan | first8=C.

| title=Fundamental parameters of B supergiants from the BCD system. I. Calibration of the (λ_1, D) parameters into Teff

| journal=Astronomy and Astrophysics

| volume=501 | issue=1 | pages=297–320 | date=July 2009

| doi=10.1051/0004-6361/200811147 | bibcode=2009A&A...501..297Z

| arxiv=0903.5134 | s2cid=14969137 }}

{{cite journal

| last1=Gies | first1=Douglas R. | last2=Lambert | first2=David L.

| title=Carbon, nitrogen, and oxygen abundances in early B-type stars

| journal=Astrophysical Journal, Part 1

| volume=387 | pages=673–700 | date=March 1992

| doi=10.1086/171116 | bibcode=1992ApJ...387..673G | doi-access=free }}

{{cite journal

| 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 | bibcode=2008MNRAS.389..869E

| arxiv=0806.2878 | s2cid=14878976 }}

{{cite journal

| last1=Simón-Díaz | first1=S. | last2=Godart | first2=M.

| last3=Castro | first3=N. | last4=Herrero | first4=A.

| last5=Aerts | first5=C. | last6=Puls | first6=J.

| last7=Telting | first7=J. | last8=Grassitelli | first8=L.

| display-authors=1 | title=The IACOB project . III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars

| journal=Astronomy & Astrophysics

| volume=597 | id=A22 | pages=17 | date=January 2017

| doi=10.1051/0004-6361/201628541 | bibcode=2017A&A...597A..22S

| arxiv=1608.05508 | s2cid=3478126 }}

}}

Category:B-type giants

Category:Cassiopeia (constellation)