HR 511

Starbox begin
name=HR 511 Starbox observe
epoch=J2000
ra=RA|01|47|44.83
dec=DEC| +63|51|09.0
appmag_v=5.63
constell=Cassiopeia Starbox character
class=K0 V
b-v=0.81
u-b=0.41
variable=None Starbox astrometry
radial_v=+2.8
prop_mo_ra=582.03
prop_mo_dec=−246.86
parallax=100.24
p_error=0.68
absmag_v=5.64
-Starbox detail
mass=0.85 [cite journal | author = H. M. Johnson, C. D. Wright | title=Predicted infrared brightness of stars within 25 parsecs of the sun | journal=Astrophysical Journal Supplement Series | year=1983 | volume=53 | pages=643–711 | url=http://adsabs.harvard.edu/abs/1983ApJS...53..643J | doi=10.1086/190905 ]
radius=0.83 [Approximating the star as a black body, then R_{HR 511} / R_Sun = (T_Sun/T_{HR 511})² × ( L_{HR 511} / L_Sun )^0.5 = 1.14 × 0.73 = 0.83]
luminosity=0.53cite journal | author = E. J. Gaidos, G. W. Henry, S. M. Henry | title=Spectroscopy and Photometry of Nearby Young Solar Analogs | journal=The Astronomical Journal | year=2000 | volume=120 | issue=2 | pages=1006–1013 | url=http://www.iop.org/EJ/article/1538-3881/120/2/1006/200146.html | accessdate=2008-09-14 | doi=10.1086/301488 ] | temperature=5420
metal=95.5%cite journal | author = S. Feltzing, G. Gonzalez | title=The nature of super-metal-rich stars. Detailed abundance analysis of 8 super-metal-rich star candidates | journal=Astronomy and Astrophysics | year=2001 | volume=367 | pages=253–265 | url=http://adsabs.harvard.edu/abs/2001A&A...367..253F | accessdate=2006-08-18 | doi=10.1051/0004-6361:20000477 ]
rotation=21.67 days (2 km/s)
age=2.3-4 × 10⁹ Starbox catalog
names=GJ 75, HR 511, BD +63°238, HD 10780, LHS 1297, LTT 10619, GCTP 371.00, SAO 11983, HIP 8362. Starbox reference
Simbad=HD+10780

HR 511 (also designated Gliese 75 among others) is an orange dwarf of spectral type K0V in the constellation Cassiopeia. The star is relatively close, 32.5 light years from the Sun.

This star is estimated to be about the same age as the sun. It has not been identified as a member of any moving star groups. This star has displayed unusual emissions of Ca II and is much more x-ray luminous than the Sun. It is considered a relatively active star. Based on an iron abundance of [-0.02] , the metallicity of this star appears to be similar to that of the Sun.

References

External links

*cite web | title = ARICNS 4C00155 | work = ARI Data Base for Nearby Stars | publisher = Astronomisches Rechen-Institut | date = March 4, 1998 | url = http://www.ari.uni-heidelberg.de/datenbanken/aricns/cnspages/4c00155.htm | accessdate = 2008-02-27
* [http://www.solstation.com/stars/hr511.htm SolStation]