All names: SDSS J102803.41+610820.2, SDSSJ102803.42+610820.12, SDSS J102803.42+610820.12, Gaia DR2 1048868435734395648, Gaia EDR3 1048868435734395648, SDSS J102803.42+610820.1, Gaia DR3 1048868435734395648, GALEX J102803.4+610821
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 28 03.41 (0.09) | 10 28 03.42 | 10 28 03.42 | 10 28 03.41 (0.1) | 10 28 03.42 (0.09) | ||||
| Declination | 61 08 20.10 (0.1) | 61 08 20.20 | 61 08 20.12 | 61 08 20.10 (0.2) | 61 08 20.20 (0.1) | ||||
| Spectral type | sdB | sdB | sdB | ||||||
| Effective temperature | [K] | 33277.0 (213) | 33277.0 (213) | ||||||
| log(g) | [cgs] | 5.84 (0.05) | 5.83 (0.05) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.28 (0.1) | 0.02 (0.2) | 0.02 (0.2) | 0.28 (0.1) | ||||
| Distance | [pc] | 3586.88 (1818) | 47619.05 (475510) | 47694.12 (477041) | 3586.80 (1818) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -4.78706639 (0.1) | -4.841 (0.2) | -4.841285186 (0.2) | -4.787 (0.1) | ||||
| Proper motion (declination) | [mas/yr] | -6.036392489 (0.1) | -6.251 (0.3) | -6.250635475 (0.3) | -6.036 (0.1) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 18.09 (0.01) | 18.09 (0.01) | 18.11 (0.02) | 18.11 (0.01) | |||||
| g magnitude | 18.33 (0.007) | 18.34 (0.007) | 18.36 (0.02) | 18.36 (0.02) | |||||
| r magnitude | 18.83 (0.01) | 18.82 (0.01) | 18.82 (0.02) | 18.82 (0.02) | |||||
| i magnitude | 19.13 (0.02) | 19.14 (0.02) | 19.13 (0.02) | 19.13 (0.02) | |||||
| z magnitude | 19.70 (0.09) | 19.71 (0.09) | 19.70 (0.09) | 19.70 (0.09) | |||||
| G magnitude | 18.67 (0.01) | 18.71 (0.003) | 18.71 | 18.67 (0.003) | |||||
| BP magnitude | 18.56 (0.01) | 18.51 (0.01) | 18.51 | ||||||
| RP magnitude | 19.00 (0.04) | 18.96 (0.03) | 18.96 | ||||||
| Pan g magnitude | 18.44 (0.008) | 18.44 (0.008) | |||||||
| Pan r magnitude | 18.89 (0.009) | 18.89 (0.009) | |||||||
| Pan i magnitude | 19.21 (0.01) | 19.21 (0.01) | |||||||
| Pan z magnitude | 19.51 (0.04) | 19.51 (0.04) | |||||||
| Pan y magnitude | 19.54 (0.1) | 19.54 (0.1) | |||||||
| E(B-V) | 0.022 | ||||||||
* 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.