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
Spectra without link are available upon request
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.