All names: SDSS J072123.79+365522.7, GALEX J072123.8+365523, Gaia DR2 898073916382723712, Gaia DR3 898073916382723712, Gaia EDR3 898073916382723712, SDSS J072123.79+365522.8
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 21 23.79 (1) | 07 21 23.79 | 07 21 23.79 (3) | 07 21 23.79 (1) | 07 21 23.79 | ||||
| Declination | 36 55 22.81 (1) | 36 55 22.80 | 36 55 22.80 (4) | 36 55 22.76 (1) | 36 55 22.76 | ||||
| Spectral type | DA | DA | DA | ||||||
| Effective temperature | [K] | 21847.0 (729) | |||||||
| log(g) | [cgs] | 7.71 (0.1) | |||||||
| Mass | [M☉] | 0.497 (0.05) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 2.85 (0.8) | 2.85 (0.8) | ||||||
| Distance | [pc] | 350.35 (102) | 350.35 (102) | ||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -1.621003636 (1) | -1.621 (1) | ||||||
| Proper motion (declination) | [mas/yr] | 2.577589191 (1) | 2.578 (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 | 20.24 (0.05) | 20.22 (0.05) | 20.22 (0.05) | ||||||
| g magnitude | 20.23 (0.02) | 20.23 (0.02) | 20.23 (0.02) | ||||||
| r magnitude | 20.64 (0.04) | 20.62 (0.04) | 20.62 (0.04) | ||||||
| i magnitude | 20.88 (0.06) | 20.88 (0.06) | 20.88 (0.06) | ||||||
| z magnitude | 20.88 (0.3) | 20.96 (0.3) | 20.96 (0.3) | ||||||
| G magnitude | 20.43 (0.1) | 20.48 | 20.43 (0.01) | ||||||
| BP magnitude | 20.31 (0.1) | 20.32 | |||||||
| RP magnitude | 20.15 (0.2) | 20.25 | |||||||
| Pan g magnitude | 20.36 (0.03) | ||||||||
| Pan r magnitude | 20.59 (0.04) | ||||||||
| Pan i magnitude | 20.92 (0.03) | ||||||||
| Pan z magnitude | 21.03 (0.1) | ||||||||
| Pan y magnitude | |||||||||
| 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.