All names: SDSS J072914.33+313614.1, SDSS J072914.34+313614.2, Gaia DR2 892152840109785216, Gaia DR3 892152840109785216, Gaia EDR3 892152840109785216
Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|
Right ascension | 07 29 14.35 (0.9) | 07 29 14.34 | 07 29 14.35 (1) | 07 29 14.34 (0.9) | 07 29 14.34 | |||
Declination | 31 36 13.86 (0.7) | 31 36 14.17 | 31 36 13.87 (0.9) | 31 36 14.35 (0.7) | 31 36 14.18 | |||
Spectral type | DA | DA | DA | |||||
Effective temperature | [K] | 17524.0 (701) | ||||||
log(g) | [cgs] | 8.01 (0.1) | ||||||
Mass | [M☉] | 0.622 (0.08) | ||||||
log(Luminosity) | [L☉] | |||||||
Cooling age | [Gyr] | |||||||
log(H/He) | ||||||||
log(C/He) | ||||||||
log(Ca/He) | ||||||||
log(Ca/H) | ||||||||
Parallax | [mas] | 1.45 (0.8) | 1.45 (0.8) | |||||
Distance | [pc] | 690.45 (398) | 690.46 (398) | |||||
Composition | ||||||||
Proper motion (right ascension) | [mas/yr] | 7.973282527 (1) | 7.973 (1) | |||||
Proper motion (declination) | [mas/yr] | -30.56520404 (0.9) | -30.565 (0.9) | |||||
Variability | ||||||||
Magnetic | ||||||||
Bd | [MG] | |||||||
Infrared excess (disk) | ||||||||
Binarity | ||||||||
B magnitude | ||||||||
V magnitude | ||||||||
R magnitude | ||||||||
I magnitude | ||||||||
J magnitude | ||||||||
H magnitude | ||||||||
K magnitude | ||||||||
u magnitude | 20.90 (0.08) | 20.87 (0.08) | 20.87 (0.08) | |||||
g magnitude | 20.46 (0.02) | 20.48 (0.03) | 20.48 (0.03) | |||||
r magnitude | 20.73 (0.04) | 20.76 (0.04) | 20.76 (0.04) | |||||
i magnitude | 20.97 (0.07) | 21.02 (0.06) | 21.02 (0.06) | |||||
z magnitude | 21.76 (0.5) | 21.83 (0.4) | 21.83 (0.4) | |||||
G magnitude | 20.64 (0.2) | 20.71 | 20.64 (0.01) | |||||
BP magnitude | 20.83 (0.2) | 20.71 | ||||||
RP magnitude | 20.64 (0.2) | 20.28 | ||||||
Pan g magnitude | ||||||||
Pan r magnitude | ||||||||
Pan i magnitude | ||||||||
Pan z magnitude | ||||||||
Pan y magnitude | ||||||||
E(B-V) | 0.036 |
* 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.