All names: GALEX J144722.7+631746, SDSS J144722.82+631745.4, SDSS J144722.82+631745.2, Gaia EDR3 1620493497243478400, SDSS J144722.82+631745.3, SDSS J144722.84+631745.2, Gaia DR3 1620493497243478400, Gaia DR2 1620493497243478400
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 14 47 22.89 (0.2) | 14 47 22.84 | 14 47 22.89 (0.4) | 14 47 22.89 | 14 47 22.82 (0.2) | 14 47 22.82 | |||||
Declination | 63 17 45.12 (0.2) | 63 17 45.22 | 63 17 45.12 (0.3) | 63 17 45.12 | 63 17 45.23 (0.2) | 63 17 45.37 | |||||
Spectral type | DA | DA | DA | DA | DA | ||||||
Effective temperature | [K] | 7723.0 | 6102.0 (190) | 8014.0 (90) | |||||||
log(g) | [cgs] | 7.74 | 7.12 (0.1) | 7.83 (0.2) | |||||||
Mass | [M☉] | 0.454 | 0.22 (0.04) | 0.507 (0.1) | |||||||
log(Luminosity) | [L☉] | ||||||||||
Cooling age | [Gyr] | 0.8464 | |||||||||
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] | 4.59 (0.3) | 4.50 (0.4) | 4.59 | 4.59 (0.3) | ||||||
Distance | [pc] | 217.81 (13) | 222.21 (19) | 217.81 | 217.81 (13) | ||||||
Composition | H | ||||||||||
Proper motion (right ascension) | [mas/yr] | 28.10743743 (0.3) | 28.89823909 (0.8) | 28.107 (0.3) | |||||||
Proper motion (declination) | [mas/yr] | -7.101432404 (0.3) | -6.910680869 (0.6) | -7.101 (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 | 20.12 (0.05) | 20.12 (0.05) | 20.09 (0.05) | ||||||||
g magnitude | 19.58 (0.01) | 19.58 (0.01) | 19.67 (0.03) | ||||||||
r magnitude | 19.53 (0.02) | 19.53 (0.02) | 19.57 (0.03) | ||||||||
i magnitude | 19.47 (0.02) | 19.47 (0.02) | 19.58 (0.03) | ||||||||
z magnitude | 19.69 (0.08) | 19.68 (0.08) | 19.69 (0.07) | ||||||||
G magnitude | 19.48 (0.04) | 19.52 | 19.48 | 19.48 (0.004) | |||||||
BP magnitude | 19.72 (0.04) | 19.71 | |||||||||
RP magnitude | 19.20 (0.05) | 19.18 | |||||||||
Pan g magnitude | 19.58 (0.02) | ||||||||||
Pan r magnitude | 19.50 (0.02) | ||||||||||
Pan i magnitude | 19.55 (0.009) | ||||||||||
Pan z magnitude | 19.58 (0.04) | ||||||||||
Pan y magnitude | 19.63 (0.03) | ||||||||||
E(B-V) | 0.016 |
* 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.