All names: WD 2317+268, Gaia DR2 2844723867126003840, 2MASS J23200401+2706237, Gaia DR3 2844723867126003840, SDSS J232004.04+270623.7, GALEX J232004.0+270624, Gaia EDR3 2844723867126003840, TIC 91104405, Mrk 320, KUV 23176+2650, LAMOST J232004.01+270623.7, KUG 2317+268, WD 2317+26
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Guo et al. 2015 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 20 04.08 (0.03) | 23 20 04.08 (0.05) | 23 20 04.08 | 23 20 04.02 (0.03) | 23 20 03.70 | |||||
| Declination | 27 06 23.67 (0.03) | 27 06 23.67 (0.04) | 27 06 23.67 | 27 06 23.73 (0.03) | 27 06 20.16 | |||||
| Spectral type | DA+M | DA | DA | DA+M | DA | |||||
| Effective temperature | [K] | 31890.0 (486) | ||||||||
| log(g) | [cgs] | 7.71 (0.06) | ||||||||
| Mass | [M☉] | 0.52 (0.02) | ||||||||
| 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] | 4.73 (0.05) | 4.70 (0.07) | 4.73 | 4.73 (0.05) | |||||
| Distance | [pc] | 211.61 (2) | 212.93 (3) | 243.00 | 211.61 | 211.61 (2) | ||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | 46.74418909 (0.04) | 46.73682107 (0.1) | 46.744 (0.04) | ||||||
| Proper motion (declination) | [mas/yr] | -4.13888119 (0.03) | -4.172444543 (0.09) | -4.139 (0.03) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 16.40 | |||||||||
| V magnitude | 16.30 | |||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 14.61 (0.03) | |||||||||
| H magnitude | 14.07 (0.04) | |||||||||
| K magnitude | 13.78 (0.05) | |||||||||
| u magnitude | 15.85 (0.005) | |||||||||
| g magnitude | 16.07 (0.004) | |||||||||
| r magnitude | 16.38 (0.004) | |||||||||
| i magnitude | 16.17 (0.005) | |||||||||
| z magnitude | 15.81 (0.007) | |||||||||
| G magnitude | 16.08 (0.003) | 16.09 | 16.08 | 16.08 (0.003) | ||||||
| BP magnitude | 16.15 (0.003) | 16.11 | ||||||||
| RP magnitude | 15.78 (0.003) | 15.79 | ||||||||
| Pan g magnitude | 16.13 (0.005) | |||||||||
| Pan r magnitude | 16.39 (0.007) | |||||||||
| Pan i magnitude | 16.20 (0.005) | |||||||||
| Pan z magnitude | 15.92 (0.003) | |||||||||
| Pan y magnitude | 15.72 (0.004) | |||||||||
| E(B-V) | 0.028 | |||||||||
* 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.