BPS CS 22943-0148

All names: 2MASS J20303176-4358086, USNO-A1.0 0450-39118821, Gaia DR3 6675995189496107776, GALEX J203031.7-435808, UCAC4 231-180964, GSC 07962-00548, BPSCS22943-148, UCAC2 13255966, TIC 90850253, BPS CS 22943-0148, USNO-B1.0 0460-00725657, EC 20271-4408, Gaia DR2 6675995189496107776

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 20 30 31.77 20 30 31.77 (0.03)
Declination -43 58 08.60 -43 58 08.77 (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] 0.50 (0.05) 0.60 (0.04)
Distance [pc] 2008.03 (206) 1671.40 (114)
Composition
Proper motion (right ascension) [mas/yr] -5.213 (0.08) -5.265 (0.04)
Proper motion (declination) [mas/yr] -9.803 (0.06) -10.229 (0.03)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.16
V magnitude 15.10
R magnitude
I magnitude
J magnitude 14.65 (0.04) 14.65 (0.04)
H magnitude 14.42 (0.05) 14.42 (0.05)
K magnitude 14.19 (0.07) 14.19 (0.07)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.01 (0.0006) 14.99 (0.003)
BP magnitude 14.97 (0.006)
RP magnitude 14.90 (0.002)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.024

* 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.