All names: Gaia DR3 6881321525623514624, SDSSJ201014.77-103803.2, GALEX J201014.7-103803, SDSS J201014.77-103803.23, Gaia EDR3 6881321525623514624, SDSS J201014.77-103803.2, 2MASS J20101478-1038031, Gaia DR2 6881321525623514624, TIC 178298592
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 10 14.77 (0.06) | 20 10 14.77 | 20 10 14.77 | 20 10 14.77 (0.09) | 20 10 14.77 (0.06) | ||||
| Declination | -10 38 03.26 (0.04) | -10 38 03.26 | -10 38 03.20 | -10 38 03.26 (0.05) | -10 38 03.17 (0.04) | ||||
| Spectral type | sdB | sdB | sdB2He7 | ||||||
| Effective temperature | [K] | 24825.0 (1413) | 23866.0 (496) | ||||||
| log(g) | [cgs] | 5.17 (0.2) | 5.00 (0.5) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.29 (0.07) | 0.25 (0.1) | 0.25 (0.1) | 0.29 (0.07) | ||||
| Distance | [pc] | 3474.35 (853) | 3987.24 (1612) | 3987.24 (1612) | 3474.64 (854) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -4.669545053 (0.08) | -4.516 (0.2) | -4.516 (0.2) | -4.67 (0.08) | ||||
| Proper motion (declination) | [mas/yr] | -5.864173813 (0.05) | -5.89 (0.1) | -5.89 (0.1) | -5.864 (0.05) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.66 (0.1) | 16.66 (0.1) | |||||||
| H magnitude | 17.50 | ||||||||
| K magnitude | 15.48 | ||||||||
| u magnitude | 16.59 (0.008) | 16.61 (0.008) | 16.61 (0.02) | 16.61 (0.008) | |||||
| g magnitude | 16.59 (0.004) | 16.58 (0.004) | 16.60 (0.008) | 16.58 (0.004) | |||||
| r magnitude | 16.90 (0.005) | 16.91 (0.005) | 16.91 (0.009) | 16.91 (0.005) | |||||
| i magnitude | 17.18 (0.006) | 17.17 (0.006) | 17.23 (0.05) | 17.17 (0.006) | |||||
| z magnitude | 17.33 (0.01) | 17.30 (0.01) | 17.29 (0.02) | 17.30 (0.01) | |||||
| G magnitude | 16.73 (0.004) | 16.76 (0.001) | 16.76 | 16.73 (0.003) | |||||
| BP magnitude | 16.67 (0.004) | 16.63 (0.008) | 16.63 | ||||||
| RP magnitude | 16.84 (0.006) | 16.84 (0.007) | 16.84 | ||||||
| Pan g magnitude | 16.64 (0.004) | 16.64 (0.004) | |||||||
| Pan r magnitude | 16.93 (0.003) | 16.93 (0.003) | |||||||
| Pan i magnitude | 17.17 (0.003) | 17.17 (0.003) | |||||||
| Pan z magnitude | 17.34 (0.007) | 17.34 (0.007) | |||||||
| Pan y magnitude | 17.46 (0.01) | 17.46 (0.01) | |||||||
| E(B-V) | 0.132 | ||||||||
* 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.