All names: SDSS J215607.00+053556.7, GALEX J215607.0+053556, SDSS J215607.00+053556.8, SDSS J215607.01+053556.80, Gaia DR3 2697206686993714176, SDSS J215607.01+053556.8, Gaia EDR3 2697206686993714176
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|
| Right ascension | 21 56 07.01 (1) | 21 56 07.01 | 21 56 07.01 (1) | ||||
| Declination | 05 35 56.73 (1) | 05 35 56.80 | 05 35 56.78 (1) | ||||
| Spectral type | DA | DA | |||||
| Effective temperature | [K] | 13078.0 (463) | |||||
| log(g) | [cgs] | 7.95 (0.1) | |||||
| Mass | [M☉] | 0.581 (0.06) | |||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 2.91 (2) | 2.91 (2) | ||||
| Distance | [pc] | 344.11 (188) | 344.10 (188) | ||||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | 5.760861512 (2) | 5.761 (2) | ||||
| Proper motion (declination) | [mas/yr] | -2.809325679 (1) | -2.809 (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 | 21.31 (0.1) | 21.28 (0.1) | 21.28 (0.1) | ||||
| g magnitude | 20.75 (0.03) | 20.75 (0.03) | 20.75 (0.03) | ||||
| r magnitude | 20.82 (0.04) | 20.84 (0.04) | 20.82 (0.04) | ||||
| i magnitude | 20.85 (0.07) | 20.85 (0.08) | 20.85 (0.07) | ||||
| z magnitude | 20.30 (0.2) | 20.32 (0.2) | 20.30 (0.1) | ||||
| G magnitude | 20.67 (0.1) | 20.67 (0.01) | |||||
| BP magnitude | 20.74 (0.1) | ||||||
| RP magnitude | 19.88 (0.1) | ||||||
| Pan g magnitude | 20.77 (0.02) | ||||||
| Pan r magnitude | 20.84 (0.02) | ||||||
| Pan i magnitude | 20.74 (0.02) | ||||||
| Pan z magnitude | 20.41 (0.03) | ||||||
| Pan y magnitude | 20.06 (0.1) | ||||||
| E(B-V) | 0.058 | ||||||
* 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.