Atlas (star)

Starbox begin
name=Atlas A Starbox observe
epoch=J2000
ra=03^h 49^m 09.7^s
dec=+24° 03′ 12″
appmag_v=3.62
constell=Pleiades Starbox character
class=B8 III
b-v=-0.09
u-b=-0.36
variable=Suspected Starbox astrometry
radial_v=+8.5
prop_mo_ra=17.77
prop_mo_dec=-44.7
parallax=8.57
p_error=1.03
dist_ly=381
dist_pc=117
absmag_v=-2.55 Starbox catalog
names=27 Tauri, HR 1178, BD +23°557, HD 23850, SAO 76228, FK5 142, GC 4586, ADS 2786, CCDM 03492+2403, NSV 01345, HIP 17847.

Atlas is a triple star system in the Pleiades open cluster (M45). It is also known as 27 Tauri.

The primary component, Atlas A, is a blue-white B-type giant with an apparent magnitude of +3.62. It is a spectroscopic binary whose components have magnitudes of +4.1 and +5.6. The binary makes one orbit every 1250 days. Atlas also has a dimmer magnitude +6.8 companion, Atlas B, at a separation of 0.4 arcseconds or at least 52 Astronomical Units away.

External links

* [http://www.alcyone.de/SIT/mainstars/SIT000780.htm Alcyone ephemeris]