Beta Arietis

Beta Arietis

Starbox begin
name=Beta Arietis
Starbox image


caption = Beta Arietis
Starbox observe
epoch=J2000
ra=01h 54m 38.4s
dec=+20° 48′ 29″
appmag_v=2.64
constell=Aries
Starbox character
class=A5V
r-i = -0.02
v-r =
b-v=0.13
u-b=0.1
variable=
Starbox astrometry
radial_v=-1.9
prop_mo_ra=96.32
prop_mo_dec=-108.8
parallax=54.74
p_error=0.75
absmag_v=2.77
Starbox detail
mass=2.00/1.02
radius=2.1
luminosity=22
temperature=8200
metal=
rotation=79 km/s
0,003689549665744 Year
age=
Starbox visbin
name=Beta Arietis B
period=0.29295
axis=0.0361 ± 0.0003
eccentricity=0.903 ± 0.012 °
inclination= 44.7 ± 1.3
node=79.1 ± 0.8
periastron=209.1 ± 1.2 °
Starbox catalog
names=Sheratan, Sharatan, Al Sharatain, 6 Arietis, Gl 80, HR 553, BD +20°306, HD 11636, GCTP 394.00, SAO 75012, FK5 66, GC 2309, CCDM 01546+2048, HIP 8903.
Starbox reference
Simbad=HD+11636
ARICNS = 00161

Beta Arietis (β Ari / β Arietis) is a star in the constellation Aries, it is the Ram's second horn. It also has the traditional name Sharatan (or Sheratan or Sheratim), and the Flamsteed designation 6 Arietis.

"Al Sharatan" means "the two signs", a reference to the star having marked the vernal equinox together with its binary partner Gamma Arietis several thousand years ago.

It has an observed visual magnitude of +2.66. Its MK spectral type is A5V (white main sequence star). It is 59.6 light years from Earth.

This star is a spectroscopic binary. The companion orbits every 107 days with an unusually large eccentricity of 0.88. Based on the estimated mass of the companion, it is likely a G-class star.

References

* [http://webviz.u-strasbg.fr/viz-bin/VizieR-S?GJ%2080 GJ 80] Catalog
* [http://aladin.u-strasbg.fr/AladinPreview?-c=01+54+38.4091%2B20+48+28.926&ident=SV*+ZI+++101&submit=Aladin+previewer Image Beta Arietis]
*

External links

* [http://www.astro.uiuc.edu/~kaler/sow/sheratan.html Beta Arietis] by Professor Jim Kaler.
* [http://www.ari.uni-heidelberg.de/aricns/cnspages/4c00161.htm ARICNS entry]
* [http://www.purplehell.com/riddletools/stars.htm The Constellations and Named Stars]


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