SDSS J222804.37+142808.1

All names: SDSS J222804.39+142808.0, Gaia DR2 2734444839428147584, Gaia DR3 2734444839428147584, SDSS J222804.37+142808.2, GALEX J222804.3+142808, Gaia EDR3 2734444839428147584, SDSS J222804.37+142808.1, USNO-A2.0 0975-20952445

Parameter Unit Gaia EDR3 Stilism Simbad Vincent et al. 2023
Right ascension 22 28 04.38 (0.3) 22 28 04.38 (0.3)
Declination 14 28 08.13 (0.3) 14 28 08.28 (0.3)
Spectral type DB DB+MS
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] 3.15 (0.4) 3.15 (0.4)
Distance [pc] 317.65 (40) 317.65 (40)
Composition
Proper motion (right ascension) [mas/yr] 2.244 (0.4) 2.244 (0.4)
Proper motion (declination) [mas/yr] -9.266 (0.4) -9.266 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude 18.40 (0.3)
V magnitude
R magnitude 18.40 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.91 (0.02)
g magnitude 18.97 (0.01)
r magnitude 19.21 (0.01)
i magnitude 19.41 (0.02)
z magnitude 19.43 (0.08)
G magnitude 19.14 (0.005) 19.14 (0.005)
BP magnitude 19.05 (0.04)
RP magnitude 18.64 (0.1)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.044

* 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.