All names: Gaia DR3 2651256614304360576, Gaia EDR3 2651256614304360576, LAMOST J230752.91-000207.5, GALEX J230752.9-000206, SDSS J230752.92-000207.5, SDSS J230752.93-000207.4, SDSS J230752.92-000207.4, Gaia DR2 2651256614304360576
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 23 07 52.94 (0.3) | 23 07 52.93 | 23 07 52.94 (0.4) | 23 07 52.92 (0.3) | 23 07 52.93 | 23 07 52.92 | ||||||
Declination | -00 02 07.43 (0.2) | -00 02 07.45 | -00 02 07.43 (0.3) | -00 02 07.46 (0.2) | -00 02 07.43 | -00 02 07.52 | ||||||
Spectral type | sdB | sdB | DABZH | SDB | DABZH: | sdOB | ||||||
Effective temperature | [K] | 12616.0 | 13094.0 | 16772.0 (251) | 16227.0 (308) | |||||||
log(g) | [cgs] | 8.22 | 8.22 | 8.44 (0.1) | 8.38 (0.2) | |||||||
Mass | [M☉] | 0.741 | 0.722 | |||||||||
log(Luminosity) | [L☉] | |||||||||||
Cooling age | [Gyr] | 0.4486 | 0.4274 | |||||||||
log(H/He) | ||||||||||||
log(C/He) | ||||||||||||
log(Ca/He) | ||||||||||||
log(Ca/H) | ||||||||||||
Parallax | [mas] | 3.08 (0.3) | 3.48 (0.4) | 3.08 (0.3) | ||||||||
Distance | [pc] | 324.82 (32) | 287.37 (35) | 324.81 (32) | ||||||||
Composition | ||||||||||||
Proper motion (right ascension) | [mas/yr] | 13.45458191 (0.3) | 13.45763827 (0.6) | 13.455 (0.3) | 5.5 | |||||||
Proper motion (declination) | [mas/yr] | 2.278626328 (0.3) | 1.57552211 (0.7) | 2.279 (0.3) | 2.4 | |||||||
Variability | ||||||||||||
Magnetic | ||||||||||||
Bd | [MG] | |||||||||||
Infrared excess (disk) | ||||||||||||
Binarity | ||||||||||||
B magnitude | ||||||||||||
V magnitude | ||||||||||||
R magnitude | ||||||||||||
I magnitude | ||||||||||||
J magnitude | ||||||||||||
H magnitude | ||||||||||||
K magnitude | ||||||||||||
u magnitude | 19.02 (0.02) | 19.02 (0.02) | 19.01 (0.02) | 19.02 (0.02) | ||||||||
g magnitude | 19.07 (0.01) | 19.07 (0.01) | 19.09 (0.01) | 19.10 (0.01) | ||||||||
r magnitude | 19.33 (0.01) | 19.33 (0.01) | 19.32 (0.02) | 19.31 (0.02) | ||||||||
i magnitude | 19.57 (0.02) | 19.57 (0.02) | 19.52 (0.02) | 19.51 (0.02) | ||||||||
z magnitude | 19.67 (0.07) | 19.67 (0.07) | 19.84 (0.08) | 19.84 (0.08) | ||||||||
G magnitude | 19.21 (0.04) | 19.24 | 19.21 (0.005) | |||||||||
BP magnitude | 19.18 (0.04) | 19.18 | ||||||||||
RP magnitude | 19.39 (0.07) | 19.15 | ||||||||||
Pan g magnitude | 19.12 (0.01) | |||||||||||
Pan r magnitude | 19.35 (0.008) | |||||||||||
Pan i magnitude | 19.59 (0.008) | |||||||||||
Pan z magnitude | 19.75 (0.01) | |||||||||||
Pan y magnitude | 19.91 (0.06) | |||||||||||
E(B-V) | 0.048 |
* 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.