All names: Gaia EDR3 2657310456607191936, SDSS J231951.72+010908.9, SDSS J231951.72+010909.0, Gaia DR2 2657310456607191936, DENIS J231951.7+010909, SDSS J231951.69+010908.3, USNO-B1.0 0911-00564028, WD 2317+008, GALEX J231951.7+010909, SDSS J231951.72+010909.3, SDSS J231951.73+010909.3
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Ferrario et al. 2015 | Kulebi et al. 2009 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 19 51.68 (0.8) | 23 19 51.72 | 23 19 51.73 | 23 19 51.72 (139) | 23 19 51.72 | 23 19 51.55 | 23 19 51.73 | |||
| Declination | 01 09 07.84 (0.9) | 01 09 08.90 | 01 09 09.29 | 01 09 09.42 (136) | 01 09 09.08 | 01 09 07.92 | 01 09 09.32 | |||
| Spectral type | DA | DAH | DAP | DA: | DA: | DAH | ||||
| Effective temperature | [K] | 8300.0 | 7734.0 (51) | 7525.0 (62) | ||||||
| log(g) | [cgs] | 8.00 (0) | 8.99 (0.02) | 9.02 (0.1) | ||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| 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] | |||||||||
| Distance | [pc] | |||||||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -60.0 (3) | -56.9 | |||||||
| Proper motion (declination) | [mas/yr] | -76.0 (3) | -80.4 | |||||||
| Variability | ||||||||||
| Magnetic | yes | yes | ||||||||
| Bd | [MG] | 9.35 | 9.35 (32) | |||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 19.20 | |||||||||
| V magnitude | ||||||||||
| R magnitude | 18.80 | |||||||||
| I magnitude | 18.37 (0.2) | |||||||||
| J magnitude | 18.23 (0.05) | |||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 18.82 (0.02) | 18.82 (0.02) | 18.82 (0.03) | 18.81 | 18.83 (0.03) | |||||
| g magnitude | 18.44 (0.007) | 18.44 (0.007) | 18.50 (0.04) | 18.49 | 18.51 (0.03) | |||||
| r magnitude | 18.46 (0.008) | 18.45 (0.008) | 18.43 (0.02) | 18.43 | 18.43 (0.02) | |||||
| i magnitude | 18.52 (0.01) | 18.52 (0.01) | 18.52 (0.02) | 18.52 | 18.52 (0.02) | |||||
| z magnitude | 18.62 (0.03) | 18.60 (0.03) | 18.61 (0.03) | 18.61 | 18.60 (0.03) | |||||
| G magnitude | 18.64 (0.02) | 18.57 (0.01) | ||||||||
| BP magnitude | 18.48 (0.02) | |||||||||
| RP magnitude | 18.18 (0.03) | |||||||||
| Pan g magnitude | 18.45 (0.005) | |||||||||
| Pan r magnitude | 18.45 (0.006) | |||||||||
| Pan i magnitude | 18.54 (0.006) | |||||||||
| Pan z magnitude | 18.67 (0.005) | |||||||||
| Pan y magnitude | 18.77 (0.02) | |||||||||
| E(B-V) | ||||||||||
* 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.