All names: SDSS J000250.64-045041.5, Gaia DR2 2444644807348403968, SDSS J000250.65-045041.6, Gaia EDR3 2444644807348403968, TIC 300887921, GALEX J000250.6-045041, 2MASS J00025063-0450417, Gaia DR3 2444644807348403968, SDSS J000250.64-045041.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Stilism | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|
| Right ascension | 00 02 50.66 (0.4) | 00 02 50.65 | 00 02 50.66 (0.4) | 00 02 50.65 | |||
| Declination | -04 50 41.65 (0.3) | -04 50 41.57 | -04 50 41.48 (0.3) | -04 50 41.62 | |||
| Spectral type | DB+dM4 | DB+M | |||||
| Effective temperature | [K] | 6300.0 (3) | |||||
| log(g) | [cgs] | 10.00 (0.003) | |||||
| Mass | [M☉] | ||||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 0.52 (0.5) | 0.52 (0.5) | ||||
| Distance | [pc] | 1919.61 (1799) | 1919.75 (1800) | ||||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | 0.79716175 (0.5) | 0.797 (0.5) | ||||
| Proper motion (declination) | [mas/yr] | -10.08783831 (0.3) | -10.088 (0.3) | ||||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | WDMS | ||||||
| B magnitude | |||||||
| V magnitude | |||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | 16.77 (0.2) | ||||||
| H magnitude | 16.17 (0.2) | ||||||
| K magnitude | 15.40 (0.2) | ||||||
| u magnitude | 19.83 (0.04) | 19.84 (0.04) | 19.85 (0.04) | ||||
| g magnitude | 19.72 (0.01) | 19.72 (0.01) | 19.73 (0.02) | ||||
| r magnitude | 19.47 (0.01) | 19.46 (0.01) | 19.46 (0.02) | ||||
| i magnitude | 18.56 (0.01) | 18.56 (0.01) | 18.57 (0.01) | ||||
| z magnitude | 17.91 (0.02) | 17.89 (0.02) | 17.90 (0.02) | ||||
| G magnitude | 19.11 (0.05) | 19.11 (0.004) | |||||
| BP magnitude | 19.64 (0.05) | ||||||
| RP magnitude | 18.11 (0.02) | ||||||
| Pan g magnitude | 19.73 (0.01) | ||||||
| Pan r magnitude | 19.45 (0.006) | ||||||
| Pan i magnitude | 18.55 (0.004) | ||||||
| Pan z magnitude | 18.01 (0.006) | ||||||
| Pan y magnitude | 17.75 (0.01) | ||||||
| E(B-V) | 0.020 | ||||||
* 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.