All names: Gaia DR2 6394778525002127104, 2MASS J22545938-6202090, TIC 237313550, HE 2251-6218, WD 2251-623, Gaia EDR3 6394778525002127104, WDJ225459.41-620209.19, GALEX J225459.3-620210, Gaia DR3 6394778525002127104, UCAC4 140-201944, USNO-B1.0 0279-00938626
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 54 59.53 (0.02) | 22 54 59.52 (0.04) | 22 54 59.53 | 22 54 59.41 (0.02) | 22 54 59.52 | 22 54 59.04 | |||
| Declination | -62 02 09.25 (0.03) | -62 02 09.25 (0.04) | -62 02 09.25 | -62 02 09.19 (0.03) | -62 02 09.25 | -62 02 05.64 | |||
| Spectral type | DA | DA | DA | ||||||
| Effective temperature | [K] | 18033.0 (44) | 17191.0 (181) | ||||||
| log(g) | [cgs] | 7.83 (0.009) | 7.99 (0.01) | ||||||
| Mass | [M☉] | 0.614 (0.008) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 10.78 (0.03) | 10.74 (0.05) | 10.78 | 10.78 (0.03) | 10.74 (0.05) | |||
| Distance | [pc] | 92.73 (0.3) | 93.08 (0.5) | 92.73 | 92.73 (0.3) | 93.08 (0.5) | |||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 53.50690588 (0.03) | 53.60684549 (0.07) | 53.507 (0.03) | 53.60684549 | ||||
| Proper motion (declination) | [mas/yr] | -3.519883308 (0.03) | -3.696951677 (0.09) | -3.52 (0.03) | -3.696951677 | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.89 | 15.87 (0.05) | |||||||
| V magnitude | 15.88 (0.01) | ||||||||
| R magnitude | 15.40 | ||||||||
| I magnitude | |||||||||
| J magnitude | 16.60 (0.1) | ||||||||
| H magnitude | 15.95 (0.2) | ||||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 15.89 (0.002) | 15.91 | 15.89 | 15.89 (0.003) | 15.91 | ||||
| BP magnitude | 15.83 (0.002) | 15.80 | 15.80 | ||||||
| RP magnitude | 16.04 (0.003) | 16.05 | 16.05 | ||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.003 | ||||||||
* 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.