All names: WD 0019-113, 2MASS J00215789-1103318, SDSS J002157.91-110331.6, WIRED J002157.90-110331.6, Gaia EDR3 2424755741514019968, [SGR2010] J0021-1103, GALEX J002157.9-110331, Gaia DR3 2424755741514019968, Gaia DR2 2424755741514019968, SDSS J002157.90-110331.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 21 57.92 (0.1) | 00 21 57.91 | 00 21 57.92 (0.2) | 00 21 57.90 | 00 21 57.91 (0.1) | 00 21 57.58 | 00 21 57.91 | |||
| Declination | -11 03 32.52 (0.08) | -11 03 31.62 | -11 03 32.49 (0.1) | -11 03 31.61 | -11 03 31.61 (0.08) | -11 03 27.72 | -11 03 31.63 | |||
| Spectral type | DA+M | DA+M4 | DA d | DA+M | ||||||
| Effective temperature | [K] | 19536.0 (614) | 6380.0 (186) | |||||||
| log(g) | [cgs] | 8.02 (0.1) | 5.00 (0.005) | |||||||
| Mass | [M☉] | 0.64 (0.07) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 4.96 (0.1) | 4.90 (0.2) | 4.96 (0.1) | ||||||
| Distance | [pc] | 201.77 (5) | 204.17 (8) | 432.00 (35) | 201.77 (5) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 9.487755625 (0.1) | 9.817236642 (0.3) | 9.488 (0.1) | ||||||
| Proper motion (declination) | [mas/yr] | -56.92372403 (0.1) | -56.80668044 (0.2) | -56.924 (0.1) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 14.84 (0.03) | |||||||||
| H magnitude | 14.37 (0.05) | |||||||||
| K magnitude | 14.03 (0.05) | |||||||||
| u magnitude | 19.21 (0.03) | 19.24 | 19.23 (0.03) | 19.24 | 19.23 (0.03) | |||||
| g magnitude | 18.57 (0.009) | 18.56 | 18.57 (0.009) | 18.55 | 18.55 (0.02) | |||||
| r magnitude | 18.10 (0.007) | 18.12 | 18.10 (0.008) | 18.11 | 18.11 (0.02) | |||||
| i magnitude | 17.01 (0.005) | 17.07 | 17.06 (0.006) | 17.06 | 17.05 (0.02) | |||||
| z magnitude | 16.29 (0.008) | 16.30 | 16.30 (0.008) | 16.29 | 16.29 (0.02) | |||||
| G magnitude | 17.57 (0.04) | 17.58 | 17.57 (0.003) | |||||||
| BP magnitude | 18.43 (0.04) | 18.50 | ||||||||
| RP magnitude | 16.55 (0.009) | 16.55 | ||||||||
| Pan g magnitude | 18.52 (0.009) | |||||||||
| Pan r magnitude | 18.10 (0.005) | |||||||||
| Pan i magnitude | 17.04 (0.005) | |||||||||
| Pan z magnitude | 16.41 (0.003) | |||||||||
| Pan y magnitude | 16.10 (0.004) | |||||||||
| E(B-V) | 0.013 | |||||||||
* 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.