WD 1225+139

All names: Gaia DR3 3932793560289650176, Gaia DR2 3932793560289650176, WD 1225+139, Gaia EDR3 3932793560289650176, GALEX J122740.2+133901, LBQS 1225+1355, SDSS J122740.20+133901.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 12 27 40.18 (0.1) 12 27 40.18 (0.2) 12 27 40.18 12 27 40.21 (0.1) 12 27 39.86
Declination 13 39 01.20 (0.1) 13 39 01.21 (0.1) 13 39 01.20 13 39 01.57 (0.1) 13 39 00.36
Spectral type DA DA DA DA
Effective temperature [K] 10465.0 11338.0 (466)
log(g) [cgs] 7.83 8.06 (0.06)
Mass [M] 0.507 0.642 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.4351
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] 4.90 (0.2) 4.64 (0.2) 4.90 4.90 (0.2)
Distance [pc] 203.97 (7) 215.47 (10) 203.97 203.97 (7)
Composition H
Proper motion (right ascension) [mas/yr] -23.01090083 (0.2) -23.18577562 (0.5) -23.011 (0.2)
Proper motion (declination) [mas/yr] -23.58524109 (0.1) -23.56654678 (0.3) -23.585 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.49 (0.1)
H magnitude 18.70 (0.2)
K magnitude
u magnitude 18.79 (0.03)
g magnitude 18.41 (0.02)
r magnitude 18.56 (0.03)
i magnitude 18.72 (0.02)
z magnitude 18.95 (0.04)
G magnitude 18.45 (0.02) 18.48 18.45 18.45 (0.004)
BP magnitude 18.50 (0.02) 18.50
RP magnitude 18.46 (0.03) 18.40
Pan g magnitude 18.43 (0.008)
Pan r magnitude 18.54 (0.007)
Pan i magnitude 18.71 (0.006)
Pan z magnitude 18.90 (0.01)
Pan y magnitude 19.02 (0.02)
E(B-V) 0.021

* 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.