All names: Gaia DR3 900679380983760768, GALEX J072850.1+411211, SDSS J072850.21+411211.4, Gaia DR2 900679380983760768, SDSS J072850.20+411211.4, Gaia EDR3 900679380983760768
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 28 50.22 (0.9) | 07 28 50.21 | 07 28 50.22 (1) | 07 28 50.21 | 07 28 50.21 (1) | 07 28 50.21 | |||
| Declination | 41 12 11.14 (0.9) | 41 12 11.40 | 41 12 11.15 (1) | 41 12 11.43 | 41 12 11.50 (1) | 41 12 11.43 | |||
| Spectral type | WD+MS | DA+dM | DA+M: | ||||||
| Effective temperature | [K] | 18301.0 (764) | |||||||
| log(g) | [cgs] | 7.16 (0.2) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.36 (1) | 0.36 (1) | ||||||
| Distance | [pc] | 2776.04 (9171) | 2776.24 (9173) | ||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 7.512414236 (3) | 7.512 (3) | ||||||
| Proper motion (declination) | [mas/yr] | -22.68258743 (3) | -22.683 (3) | ||||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | WDMS | |||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 20.92 (0.08) | 20.93 | 20.92 (0.08) | 20.72 (0.09) | |||||
| g magnitude | 20.47 (0.02) | 20.48 | 20.47 (0.02) | 20.52 (0.03) | |||||
| r magnitude | 20.73 (0.04) | 20.75 | 20.73 (0.04) | 20.76 (0.05) | |||||
| i magnitude | 21.08 (0.07) | 21.07 | 21.08 (0.07) | 21.17 (0.09) | |||||
| z magnitude | 20.98 (0.2) | 20.99 | 20.98 (0.2) | 21.26 (0.3) | |||||
| G magnitude | 20.62 (0.1) | 20.67 | 20.62 (0.01) | ||||||
| BP magnitude | 20.31 (0.1) | 20.37 | |||||||
| RP magnitude | 20.41 (0.1) | 21.07 | |||||||
| Pan g magnitude | 20.51 (0.02) | ||||||||
| Pan r magnitude | 20.73 (0.02) | ||||||||
| Pan i magnitude | 20.99 (0.03) | ||||||||
| Pan z magnitude | 20.76 (0.1) | ||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.054 | ||||||||
* 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.