All names: Gaia DR3 2869402611769740544, WD 2331+29, PG 2331+290, Gaia DR2 2869402611769740544, WD 2331+290, UCAC4 597-139245, TIC 120681716, GD 251, 2MASS J23342086+2918366, EGGR 585, Gaia EDR3 2869402611769740544, GALEX J233420.8+291836
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Liebert et al. 2005 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 34 20.78 (0.03) | 23 34 20.79 (0.05) | 23 34 20.78 | 23 34 20.87 (0.03) | 23 34 21.41 | |||||
| Declination | 29 18 35.16 (0.03) | 29 18 35.22 (0.03) | 29 18 35.16 | 29 18 37.19 (0.03) | 29 18 41.40 | |||||
| Spectral type | DA | DA | DA1.8 | DA | ||||||
| Effective temperature | [K] | 28410.0 (456) | 27320.0 (442) | 26804.0 (404) | ||||||
| log(g) | [cgs] | 7.53 (0.06) | 7.48 (0.05) | 7.09 (0.02) | ||||||
| Mass | [M☉] | 0.45 (0.02) | 0.44 (0.02) | 0.317 (0.005) | ||||||
| log(Luminosity) | [L☉] | -0.70 | ||||||||
| Cooling age | [Gyr] | 0.0091 | ||||||||
| 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] | 4.07 (0.05) | 4.00 (0.07) | 4.07 | 4.07 (0.05) | |||||
| Distance | [pc] | 245.93 (3) | 250.09 (4) | 203.00 | 206.00 | 245.93 | 245.93 (3) | |||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -69.90508274 (0.04) | -69.85991467 (0.1) | -69.905 (0.04) | ||||||
| Proper motion (declination) | [mas/yr] | -127.1353072 (0.03) | -127.1328758 (0.06) | -127.135 (0.03) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 15.56 (0.005) | |||||||||
| V magnitude | 15.85 | 15.74 (0.02) | ||||||||
| R magnitude | 15.81 (0.02) | |||||||||
| I magnitude | 15.98 (0.04) | |||||||||
| J magnitude | 16.18 (0.09) | |||||||||
| H magnitude | ||||||||||
| K magnitude | 15.64 (0.2) | |||||||||
| u magnitude | ||||||||||
| g magnitude | 15.53 (0.04) | |||||||||
| r magnitude | 15.96 (0.05) | |||||||||
| i magnitude | 16.08 (0.01) | |||||||||
| z magnitude | ||||||||||
| G magnitude | 15.71 (0.002) | 15.72 | 15.71 | 15.71 (0.003) | ||||||
| BP magnitude | 15.60 (0.002) | 15.56 | ||||||||
| RP magnitude | 15.93 (0.003) | 15.93 | ||||||||
| Pan g magnitude | 15.56 (0.003) | |||||||||
| Pan r magnitude | 15.94 (0.004) | |||||||||
| Pan i magnitude | 16.26 (0.001) | |||||||||
| Pan z magnitude | 16.52 (0.005) | |||||||||
| Pan y magnitude | 16.68 (0.003) | |||||||||
| E(B-V) | 0.032 | |||||||||
* 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.