All names: UCAC4 798-038676, SDSS J232117.29+692622.4, GALEX J232117.1+692620, WD 2319+691, WD 2319+691.1, GD 559, J2321+6926, WDJ232117.29+692622.44, 2MASS J23211727+6926224, Gaia EDR3 2214973771957744128, WD 2319+69, TIC 362965390, EGGR 303, Gaia DR2 2214973771957744128, ** LDS 5078A, LP 77-24, Gaia DR3 2214973771957744128, WDS J23213+6927A
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 21 16.89 (0.02) | 23 21 16.90 (0.03) | 23 21 16.89 | 23 21 17.29 (0.02) | 23 21 16.90 | 23 21 18.29 | ||||||
| Declination | 69 26 22.30 (0.02) | 69 26 22.31 (0.03) | 69 26 22.30 | 69 26 22.44 (0.02) | 69 26 22.31 | 69 26 21.12 | ||||||
| Spectral type | DA | DA | DA | DA | DA2.5 | DA2.5 | ||||||
| Effective temperature | [K] | 16767.0 (232) | 16768.0 (230) | 20420.0 (331) | 19838.0 (184) | |||||||
| log(g) | [cgs] | 7.79 (0.01) | 7.79 (0.01) | 7.96 (0.05) | 7.97 (0.008) | |||||||
| Mass | [M☉] | 0.504 (0.008) | 0.502 (0.008) | 0.6 (0.03) | 0.606 (0.006) | |||||||
| 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] | 16.08 (0.02) | 16.05 (0.04) | 16.08 | 16.08 (0.02) | 16.05 (0.04) | ||||||
| Distance | [pc] | 62.21 (0.09) | 62.29 (0.1) | 61.00 | 62.21 | 62.21 (0.09) | 62.29 (0.1) | |||||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -134.0048486 (0.03) | -134.0562353 (0.07) | -134.005 (0.03) | -134.0562353 | |||||||
| Proper motion (declination) | [mas/yr] | -8.705868801 (0.03) | -8.817695479 (0.06) | -8.706 (0.03) | -8.817695479 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 14.61 (0.06) | |||||||||||
| V magnitude | 14.77 (0.01) | |||||||||||
| R magnitude | 15.08 (0.07) | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.11 (0.05) | |||||||||||
| H magnitude | 15.28 (0.1) | |||||||||||
| K magnitude | 15.05 (0.1) | |||||||||||
| u magnitude | 14.90 (0.004) | 14.90 (0.004) | ||||||||||
| g magnitude | 14.95 (0.002) | 14.95 (0.002) | ||||||||||
| r magnitude | 14.96 (0.002) | 14.96 (0.002) | ||||||||||
| i magnitude | 15.76 (0.004) | 15.76 (0.004) | ||||||||||
| z magnitude | 15.59 (0.008) | 15.59 (0.008) | ||||||||||
| G magnitude | 14.73 (0.001) | 14.75 | 14.73 | 14.73 (0.003) | 14.75 | |||||||
| BP magnitude | 14.65 (0.001) | 14.62 | 14.62 | |||||||||
| RP magnitude | 14.91 (0.001) | 14.91 | 14.91 | |||||||||
| Pan g magnitude | 14.63 (0.005) | |||||||||||
| Pan r magnitude | 14.92 (0.0007) | |||||||||||
| Pan i magnitude | 15.23 (0.003) | |||||||||||
| Pan z magnitude | 15.48 (0.003) | |||||||||||
| Pan y magnitude | 15.65 (0.007) | |||||||||||
| E(B-V) | 0.004 | |||||||||||
* 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.