BPS CS 22879-0149

All names: EC 20540-3823, GALEX J205715.2-381150, TIC 471013459, Gaia EDR3 6774813350366290816, UCAC4 260-196131, TIC 471013511, Gaia DR2 6774813350366290816, TIC 1991865590, BPSCS22879-149, BPS CS 22879-0149, Gaia DR3 6774813350366290816

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 20 57 15.29 (0.03) 20 57 15.23 20 57 15.27 (0.03)
Declination -38 11 51.67 (0.02) -38 11 51.16 -38 11 51.42 (0.02)
Spectral type sdB sdB
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 1.04 (0.04) 1.08 (0.07) 1.04 (0.04)
Distance [pc] 959.51 (36) 928.42 (59) 959.51 (36)
Composition
Proper motion (right ascension) [mas/yr] 14.432 (0.04) 14.445 (0.1) 14.432 (0.04)
Proper motion (declination) [mas/yr] -15.531 (0.03) -15.549 (0.07) -15.531 (0.03)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.11 (0.06)
V magnitude 14.24 (0.02)
R magnitude 14.61 (0.1)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude 14.06 (0.04)
r magnitude 14.46 (0.03)
i magnitude 14.78 (0.1)
z magnitude
G magnitude 14.24 (0.003) 14.25 (0.0006) 14.24 (0.003)
BP magnitude 14.11 (0.003) 14.07 (0.003)
RP magnitude 14.48 (0.004) 14.48 (0.001)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.032

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.