All names: Gaia DR2 3927916302803458304, LAMOST J125208.33+115102.8, 2MASS J12520830+1151038, Gaia EDR3 3927916302803458304, GALEXJ12521+1151, GALEX J125208.3+115103, TIC 390689573, Gaia DR3 3927916302803458304, SDSS J125208.30+115103.9
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 12 52 08.29 (0.04) | 12 52 08.35 | 12 52 08.31 (0.04) | ||
| Declination | 11 51 03.98 (0.03) | 11 51 03.73 | 11 51 04.05 (0.03) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 31600.0 (280) | |||
| log(g) | [cgs] | 5.63 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.64 (0.05) | 0.65 (0.06) | 0.64 (0.05) | |
| Distance | [pc] | 1573.32 (122) | 1537.52 (145) | 1573.32 (122) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -14.909 (0.05) | -14.835 (0.1) | -14.909 (0.05) | |
| Proper motion (declination) | [mas/yr] | -4.62 (0.05) | -4.814 (0.08) | -4.62 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.13 (0.1) | 15.92 (0.009) | |||
| H magnitude | 15.95 (0.2) | 16.01 (0.02) | |||
| K magnitude | 16.81 | 16.16 (0.03) | |||
| u magnitude | 14.74 (0.004) | 14.75 (0.03) | |||
| g magnitude | 14.99 (0.003) | 14.96 (0.02) | |||
| r magnitude | 15.47 (0.004) | 15.49 (0.009) | |||
| i magnitude | 15.83 (0.004) | 15.83 (0.02) | |||
| z magnitude | 16.17 (0.007) | 16.13 (0.03) | |||
| G magnitude | 15.24 (0.003) | 15.25 (0.0006) | 15.24 (0.003) | ||
| BP magnitude | 15.09 (0.003) | 15.03 (0.007) | |||
| RP magnitude | 15.53 (0.005) | 15.53 (0.002) | |||
| Pan g magnitude | 15.07 (0.004) | ||||
| Pan r magnitude | 15.50 (0.002) | ||||
| Pan i magnitude | 15.87 (0.002) | ||||
| Pan z magnitude | 16.14 (0.005) | ||||
| Pan y magnitude | 16.31 (0.005) | ||||
| E(B-V) | 0.023 | ||||
* 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.