SDSS J202551.28+584228.8

All names: GALEX J202551.2+584228, SDSS J202551.29+584228.6, Gaia DR3 2188320544948282368, Gaia DR2 2188320544948282368, SDSSJ202551.28+584228.8, SDSS J202551.28+584228.8

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 20 25 51.29 20 25 51.30 (0.04)
Declination 58 42 28.80 58 42 28.74 (0.04)
Spectral type sd 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] 0.54 (0.06) 0.53 (0.05)
Distance [pc] 1859.43 (203) 1882.88 (161)
Composition
Proper motion (right ascension) [mas/yr] -6.335 (0.1) -6.302 (0.06)
Proper motion (declination) [mas/yr] -8.86 (0.1) -8.966 (0.06)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.44 (0.1)
H magnitude 16.64
K magnitude 16.38
u magnitude 17.21 (0.009) 17.21 (0.009)
g magnitude 16.80 (0.004) 16.80 (0.004)
r magnitude 16.79 (0.004) 16.79 (0.004)
i magnitude 16.85 (0.005) 16.85 (0.005)
z magnitude 17.02 (0.01) 17.02 (0.01)
G magnitude 16.75 (0.0009) 16.73 (0.003)
BP magnitude 16.81 (0.004)
RP magnitude 16.57 (0.005)
Pan g magnitude 16.81 (0.003)
Pan r magnitude 16.81 (0.004)
Pan i magnitude 16.90 (0.003)
Pan z magnitude 17.00 (0.007)
Pan y magnitude 17.08 (0.005)
E(B-V) 0.344

* 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.