SDSS J080910.19+205736.4

All names: Gaia DR2 676673613609807360, SDSS J080910.19+205736.4, SDSSJ080910.19+205736.4, Gaia DR3 676673613609807360, [BGK2006] J080910.20+205736.5

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 08 09 10.19 08 09 10.19 (0.1)
Declination 20 57 36.40 20 57 36.49 (0.09)
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] 0.01 (0.2) 0.22 (0.2)
Distance [pc] 181818.18 (6885950) 4462.29 (3451)
Composition
Proper motion (right ascension) [mas/yr] 0.413 (0.3) 1.115 (0.2)
Proper motion (declination) [mas/yr] -2.38 (0.2) -2.553 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.03 (0.03)
H magnitude 18.11 (0.09)
K magnitude 18.10 (0.1)
u magnitude 18.03 (0.01) 18.03 (0.01)
g magnitude 17.66 (0.005) 17.66 (0.005)
r magnitude 17.97 (0.006) 17.97 (0.006)
i magnitude 18.22 (0.009) 18.22 (0.009)
z magnitude 18.37 (0.03) 18.37 (0.03)
G magnitude 17.87 (0.002) 17.83 (0.003)
BP magnitude 17.78 (0.02)
RP magnitude 17.89 (0.01)
Pan g magnitude 17.72 (0.003)
Pan r magnitude 18.01 (0.004)
Pan i magnitude 18.25 (0.004)
Pan z magnitude 18.45 (0.009)
Pan y magnitude 18.51 (0.03)
E(B-V) 0.034

* 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.