FBS 0815+741

All names: 2MASS J08214270+7355295, TIC 154345149, FBS 0815+741, Gaia EDR3 1123423639154702464, GALEXJ08217+7355, Gaia DR2 1123423639154702464, GALEX J082142.6+735530, Gaia DR3 1123423639154702464, FBS B 971

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 08 21 42.67 (0.02) 08 21 42.67 08 21 42.69 (0.02)
Declination 73 55 29.41 (0.03) 73 55 30.24 73 55 29.56 (0.03)
Spectral type sdOB sdOB
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] 1.75 (0.04) 1.74 (0.05) 1.75 (0.04)
Distance [pc] 570.22 (11) 574.42 (17) 570.22 (11)
Composition
Proper motion (right ascension) [mas/yr] -6.639 (0.03) -6.632 (0.07) -6.639 (0.03)
Proper motion (declination) [mas/yr] -9.712 (0.04) -9.661 (0.07) -9.712 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 15.14 (0.05) 15.14 (0.05)
H magnitude 15.22 (0.1) 15.22 (0.1)
K magnitude 15.25 (0.2) 15.25 (0.2)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 14.43 (0.003) 14.44 (0.0005) 14.43 (0.003)
BP magnitude 14.27 (0.003) 14.22 (0.007)
RP magnitude 14.73 (0.004) 14.72 (0.002)
Pan g magnitude 14.27 (0.004)
Pan r magnitude 14.69 (0.005)
Pan i magnitude 15.06 (0.005)
Pan z magnitude 15.33 (0.002)
Pan y magnitude 15.51 (0.004)
E(B-V) 0.036

* 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.