SDSS J125440.72+504729.4

All names: SDSS J125440.71+504729.4, GALEX J125440.7+504730, Gaia EDR3 1567967387242832256, Gaia DR2 1567967352884961152, Gaia DR3 1567967352884961152, SDSS J125440.72+504729.4

Parameter Unit Gaia EDR3 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 54 40.94 (0.3) 12 54 40.72 12 54 40.70 (0.3) 12 54 40.73 (0.3) 12 54 40.72
Declination 50 47 30.79 (0.3) 50 47 29.43 50 47 29.51 (0.4) 50 47 29.41 (0.3) 50 47 29.44
Spectral type DA DA DA DA+MS
Effective temperature [K] 28258.0 18221.0 (329)
log(g) [cgs] 8.53 7.92 (0.06)
Mass [M] 0.961 0.579 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.0665
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] 1.45 (0.4) 1.52 (0.5) 1.61 (0.4)
Distance [pc] 689.99 (209) 659.05 (220) 620.54 (158)
Composition H
Proper motion (right ascension) [mas/yr] -16.60555869 (0.4) -16.59972601 (0.6) -16.594 (0.3)
Proper motion (declination) [mas/yr] 6.899295847 (0.4) 7.203741444 (0.8) 6.655 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.98 (0.04) 19.98 (0.04) 19.99 (0.04)
g magnitude 19.90 (0.01) 19.90 (0.01) 19.89 (0.03)
r magnitude 20.28 (0.02) 20.28 (0.02) 20.28 (0.03)
i magnitude 20.61 (0.05) 20.61 (0.04) 20.60 (0.05)
z magnitude 20.99 (0.2) 20.99 (0.2) 21.09 (0.2)
G magnitude 20.10 (0.1) 20.13 20.08 (0.005)
BP magnitude 21.36 (0.1) 20.07
RP magnitude 18.91 (0.04) 20.01
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.018

* 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.