GALEX J182057.7+370707

All names: Gaia EDR3 2108009879191624960, GALEX J182057.7+370707, TIC 316779366, O11J182058+370707, Gaia DR3 2108009879191624960, 2MASS J18205769+3707071, Gaia DR2 2108009879191623808, Gaia DR2 2108009879191624960

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 18 20 57.69 (0.03) 18 20 58.00 18 20 57.69 (0.03)
Declination 37 07 07.22 (0.03) 37 07 07.00 37 07 07.45 (0.03)
Spectral type sd
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] 0.52 (0.04) 0.32 (0.06) 0.52 (0.04)
Distance [pc] 1919.39 (141) 3113.33 (569) 1919.39 (141)
Composition
Proper motion (right ascension) [mas/yr] 0.291 (0.04) -2.315 (0.1) 0.291 (0.04)
Proper motion (declination) [mas/yr] -14.76 (0.04) 12.295 (0.1) -14.76 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.49 (0.1) 16.49 (0.1)
H magnitude 15.89
K magnitude 16.53
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.75 (0.003) 16.72 (0.001) 15.75 (0.003)
BP magnitude 15.60 (0.004) 16.97 (0.004)
RP magnitude 16.06 (0.005) 16.29 (0.004)
Pan g magnitude 16.97 (0.002)
Pan r magnitude 16.72 (0.004)
Pan i magnitude 16.63 (0.001)
Pan z magnitude 16.62 (0.002)
Pan y magnitude 16.62 (0.004)
E(B-V) 0.041

* 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.