All names: GALEX J073135.3+353109, Gaia DR2 895445980512796416, SDSS J073135.37+353108.6, Gaia DR3 895445984809560448, Gaia EDR3 895445984809560448
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Hardy et al. 2023a | MWDD H | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 |
---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 07 31 35.37 (0.9) | 07 31 35.37 | 07 31 35.37 (1) | 07 31 35.37 (0.9) | 07 31 35.37 | |||||
Declination | 35 31 08.47 (1) | 35 31 08.58 | 35 31 08.48 (1) | 35 31 08.59 (1) | 35 31 08.57 | |||||
Spectral type | DA | DAH | DAH | DAH | ||||||
Effective temperature | [K] | 21933.5 (490) | 28083.0 | 22795.0 (1052) | ||||||
log(g) | [cgs] | 7.72 (0.2) | 6.18 | 7.85 (0.2) | ||||||
Mass | [M☉] | 0.48784077408389 (0.2) | 0.191 | |||||||
log(Luminosity) | [L☉] | |||||||||
Cooling age | [Gyr] | |||||||||
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] | 0.95 (1) | 0.22 (2) | 0.95 (1) | ||||||
Distance | [pc] | 1055.96 (1491) | 4648.62 (35637) | 1055.97 (1492) | ||||||
Composition | H | |||||||||
Proper motion (right ascension) | [mas/yr] | 2.420434127 (2) | 1.558643719 (3) | 2.42 (2) | ||||||
Proper motion (declination) | [mas/yr] | -7.495760664 (1) | -8.954488521 (2) | -7.496 (1) | ||||||
Variability | ||||||||||
Magnetic | ||||||||||
Bd | [MG] | |||||||||
Infrared excess (disk) | ||||||||||
Binarity | ||||||||||
B magnitude | ||||||||||
V magnitude | ||||||||||
R magnitude | ||||||||||
I magnitude | ||||||||||
J magnitude | ||||||||||
H magnitude | ||||||||||
K magnitude | ||||||||||
u magnitude | 20.32 (0.05) | 20.25 (0.06) | 20.25 (0.06) | |||||||
g magnitude | 20.29 (0.02) | 20.36 (0.03) | 20.36 (0.03) | |||||||
r magnitude | 20.66 (0.04) | 20.65 (0.04) | 20.65 (0.04) | |||||||
i magnitude | 20.90 (0.07) | 21.00 (0.07) | 21.00 (0.07) | |||||||
z magnitude | 21.26 (0.3) | 21.13 (0.3) | 21.13 (0.3) | |||||||
G magnitude | 20.52 (0.1) | 20.59 | 20.52 (0.01) | |||||||
BP magnitude | 20.32 (0.1) | 20.28 | ||||||||
RP magnitude | 20.75 (0.2) | 20.24 | ||||||||
Pan g magnitude | 20.40 (0.03) | |||||||||
Pan r magnitude | 20.61 (0.02) | |||||||||
Pan i magnitude | 20.94 (0.03) | |||||||||
Pan z magnitude | 20.90 (0.2) | |||||||||
Pan y magnitude | ||||||||||
E(B-V) | 0.035 |
* 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.