All names: SDSS J220011.20+000131.2, Gaia DR2 2680542965503896576, GALEX J220011.2+000131, Gaia DR3 2680542965503896576, SDSS J220011.20+000131.3, USNO-A2.0 0900-19931794, Gaia EDR3 2680542965503896576, SDSS J220011.20+000131.4, SDSS J220011.20+000131.1, WD 2157-002, SDSS J220011.19+000131.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Stilism | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 00 11.22 (0.3) | 22 00 11.20 | 22 00 11.20 (0.3) | 22 00 11.20 | 22 00 10.82 | 22 00 11.20 | |||||
| Declination | 00 01 31.61 (0.5) | 00 01 31.43 | 00 01 31.26 (0.5) | 00 01 31.40 | 00 01 37.56 | 00 01 31.17 | |||||
| Spectral type | DA | DA | DA_auto | DA | DA | DA | |||||
| Effective temperature | [K] | 12270.0 (330) | 12215.0 (213) | 12248.0 (217) | |||||||
| log(g) | [cgs] | 8.17 (0.1) | 7.99 (0.1) | 8.06 (0.1) | |||||||
| Mass | [M☉] | 0.71 (0.06) | 0.639 (0.06) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.4898 | |||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(C/H) | |||||||||||
| log(N/H) | |||||||||||
| log(O/H) | |||||||||||
| log(Na/H) | |||||||||||
| log(Mg/H) | |||||||||||
| log(Al/H) | |||||||||||
| log(Si/H) | |||||||||||
| log(P/H) | |||||||||||
| log(S/H) | |||||||||||
| log(Sc/H) | |||||||||||
| log(Ti/H) | |||||||||||
| log(Cr/H) | |||||||||||
| log(Mn/H) | |||||||||||
| log(Fe/H) | |||||||||||
| log(Ni/H) | |||||||||||
| Parallax | [mas] | 3.37 (0.3) | 3.37 (0.3) | ||||||||
| Distance | [pc] | 296.46 (25) | 296.46 (25) | ||||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 26.50946704 (0.4) | 26.509 (0.4) | 27.4 | |||||||
| Proper motion (declination) | [mas/yr] | 21.92414993 (0.5) | 21.924 (0.5) | 22.6 | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 18.40 (0.3) | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 18.70 (0.3) | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 19.20 (0.2) | ||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.22 (0.02) | 19.22 (0.02) | 19.25 (0.04) | 19.24 | 19.24 (0.03) | ||||||
| g magnitude | 18.81 (0.008) | 18.81 (0.008) | 18.82 (0.02) | 18.81 | 18.81 (0.02) | ||||||
| r magnitude | 19.01 (0.01) | 19.01 (0.01) | 19.05 (0.02) | 19.04 | 19.03 (0.02) | ||||||
| i magnitude | 19.22 (0.02) | 19.22 (0.01) | 19.22 (0.02) | 19.21 | 19.19 (0.02) | ||||||
| z magnitude | 19.62 (0.08) | 19.62 (0.08) | 19.51 (0.08) | 19.50 | 19.48 (0.08) | ||||||
| G magnitude | 18.91 (0.03) | 18.91 (0.004) | |||||||||
| BP magnitude | 18.96 (0.03) | ||||||||||
| RP magnitude | 19.01 (0.05) | ||||||||||
| Pan g magnitude | 18.82 (0.007) | ||||||||||
| Pan r magnitude | 19.01 (0.005) | ||||||||||
| Pan i magnitude | 19.24 (0.007) | ||||||||||
| Pan z magnitude | 19.47 (0.03) | ||||||||||
| Pan y magnitude | 19.46 (0.03) | ||||||||||
| E(B-V) | 0.102 | ||||||||||
* 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.