SDSS J125644.90+200107.5

All names: Gaia DR2 3942392507254870400, SDSS J125644.89+200107.4, Gaia EDR3 3942392507255269376, SDSS J125644.90+200107.5, GALEX J125644.9+200106, Gaia DR3 3942392507255269376, SDSS J125644.90+200107.4

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 56 44.89 (0.4) 12 56 44.89 12 56 44.89 (0.6) 12 56 44.89 (0.4) 12 56 44.90
Declination 20 01 07.23 (0.2) 20 01 07.41 20 01 07.24 (0.4) 20 01 07.49 (0.2) 20 01 07.47
Spectral type DA DA DA DA
Effective temperature [K] 12380.0 15618.0 (407)
log(g) [cgs] 6.34 7.73 (0.1)
Mass [M] 0.128
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 1.75 (0.4) 0.77 (0.7) 1.75 (0.4)
Distance [pc] 570.33 (136) 1299.25 (1105) 570.32 (136)
Composition H
Proper motion (right ascension) [mas/yr] 0.95249651 (0.6) 0.678952077 (1) 0.952 (0.6)
Proper motion (declination) [mas/yr] -16.1796152 (0.5) -17.10956462 (0.9) -16.18 (0.5)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.00 (0.04) 20.00 (0.04) 19.96 (0.04)
g magnitude 19.69 (0.01) 19.69 (0.01) 19.70 (0.03)
r magnitude 19.98 (0.02) 19.98 (0.02) 20.01 (0.03)
i magnitude 20.21 (0.03) 20.21 (0.03) 20.25 (0.03)
z magnitude 20.64 (0.2) 20.64 (0.2) 20.44 (0.1)
G magnitude 19.84 (0.03) 19.87 19.84 (0.004)
BP magnitude 19.85 (0.03) 19.91
RP magnitude 20.05 (0.06) 20.09
Pan g magnitude 19.68 (0.01)
Pan r magnitude 19.93 (0.04)
Pan i magnitude 20.23 (0.01)
Pan z magnitude 20.34 (0.05)
Pan y magnitude 20.22 (0.2)
E(B-V) 0.025

* 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.