All names: Gaia EDR3 139882137028494720, Gaia DR2 139882137028494720, SDSS J025049.44+343650.9, Gaia DR3 139882137028494720, GALEX J025049.4+343650, SDSS J025049.44+343651.0, WIRED J025049.44+343651.0
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 | 02 50 49.46 (0.3) | 02 50 49.44 | 02 50 49.46 (0.4) | 02 50 49.43 (0.3) | 02 50 49.44 | |||||
Declination | 34 36 50.93 (0.2) | 34 36 51.00 | 34 36 50.93 (0.3) | 34 36 51.02 (0.2) | 34 36 51.02 | |||||
Spectral type | DA | DA | DA | DA | ||||||
Effective temperature | [K] | 13015.0 | 21790.0 (245) | |||||||
log(g) | [cgs] | 7.82 | 8.03 (0.04) | |||||||
Mass | [M☉] | 0.51 | 0.642 (0.02) | |||||||
log(Luminosity) | [L☉] | |||||||||
Cooling age | [Gyr] | 0.2344 | ||||||||
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] | 2.88 (0.3) | 3.25 (0.4) | 2.88 (0.3) | ||||||
Distance | [pc] | 347.42 (30) | 307.39 (38) | 347.43 (30) | ||||||
Composition | H | |||||||||
Proper motion (right ascension) | [mas/yr] | 24.0871289 (0.4) | 27.1133736 (1) | 24.087 (0.4) | ||||||
Proper motion (declination) | [mas/yr] | -5.69057314 (0.3) | -6.82615344 (0.6) | -5.691 (0.3) | ||||||
Variability | ||||||||||
Magnetic | ||||||||||
Bd | [MG] | |||||||||
Infrared excess (disk) | ||||||||||
Binarity | ||||||||||
B magnitude | ||||||||||
V magnitude | ||||||||||
R magnitude | ||||||||||
I magnitude | ||||||||||
J magnitude | ||||||||||
H magnitude | ||||||||||
K magnitude | ||||||||||
u magnitude | 18.73 (0.02) | 18.73 (0.02) | 18.76 (0.02) | |||||||
g magnitude | 18.60 (0.008) | 18.60 (0.008) | 18.64 (0.02) | |||||||
r magnitude | 18.84 (0.01) | 18.84 (0.01) | 18.90 (0.01) | |||||||
i magnitude | 19.10 (0.02) | 19.10 (0.02) | 19.16 (0.02) | |||||||
z magnitude | 19.34 (0.06) | 19.34 (0.06) | 19.43 (0.06) | |||||||
G magnitude | 18.76 (0.03) | 18.79 | 18.76 (0.004) | |||||||
BP magnitude | 18.69 (0.03) | 18.69 | ||||||||
RP magnitude | 18.78 (0.05) | 18.79 | ||||||||
Pan g magnitude | 18.64 (0.01) | |||||||||
Pan r magnitude | 18.90 (0.009) | |||||||||
Pan i magnitude | 19.15 (0.008) | |||||||||
Pan z magnitude | 19.33 (0.02) | |||||||||
Pan y magnitude | 19.48 (0.03) | |||||||||
E(B-V) | 0.064 |
* 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.