All names: HE 0245-0514, WD 0249-052, Gaia EDR3 5184503302729610368, PB 9313, UCAC4 425-003547, WISEA J025215.54-050231.6, WISE J025215.53-050231.3, GALEX J025215.5-050231, Gaia DR2 5184503302729610368, TIC 382378540, 2MASS J02521552-0502323, KUV 02498-0515, Gaia DR3 5184503302729610368
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Bergeron et al. 2011 | Voss et al. 2007 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 52 15.61 (0.04) | 02 52 15.61 (0.06) | 02 52 15.61 | 02 52 15.53 (0.04) | 02 52 15.67 | ||||
| Declination | -05 02 31.20 (0.04) | -05 02 31.24 (0.05) | -05 02 31.20 | -05 02 32.37 (0.04) | -05 02 31.92 | ||||
| Spectral type | DBA | DB | DB | DB | |||||
| Effective temperature | [K] | 17700.0 (548) | 17908.0 | 17159.0 (444) | |||||
| log(g) | [cgs] | 8.16 (0.09) | 7.99 | 7.96 (0.03) | |||||
| Mass | [M☉] | 0.69 (0.05) | 0.589 | 0.572 (0.02) | |||||
| log(Luminosity) | [L☉] | -1.94 | |||||||
| Cooling age | [Gyr] | 0.1585 | |||||||
| log(H/He) | -5.47 (0.6) | ||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| log(N/He) | |||||||||
| log(O/He) | |||||||||
| log(Na/He) | |||||||||
| log(Mg/He) | |||||||||
| log(Al/He) | |||||||||
| log(Si/He) | |||||||||
| log(P/He) | |||||||||
| log(S/He) | |||||||||
| log(Cl/He) | |||||||||
| log(Sc/He) | |||||||||
| log(Ti/He) | |||||||||
| log(V/He) | |||||||||
| log(Cr/He) | |||||||||
| log(Mn/He) | |||||||||
| log(Fe/He) | |||||||||
| log(Co/He) | |||||||||
| log(Ni/He) | |||||||||
| log(Cu/He) | |||||||||
| log(Zn/He) | |||||||||
| log(Ga/He) | |||||||||
| log(Ge/He) | |||||||||
| log(Sr/He) | |||||||||
| Parallax | [mas] | 9.56 (0.04) | 9.61 (0.07) | 9.56 | 9.56 (0.04) | ||||
| Distance | [pc] | 104.58 (0.5) | 104.10 (0.7) | 123.00 | 104.58 | 104.58 (0.5) | |||
| Composition | He | ||||||||
| Proper motion (right ascension) | [mas/yr] | 74.94570241 (0.05) | 74.69597185 (0.1) | 74.946 (0.05) | |||||
| Proper motion (declination) | [mas/yr] | 73.1852828 (0.04) | 72.8073973 (0.1) | 73.185 (0.04) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 16.10 | 15.99 (0.01) | |||||||
| V magnitude | 16.60 | 15.94 (0.09) | |||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.26 (0.1) | ||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | 15.91 (0.01) | ||||||||
| r magnitude | 16.17 (0.07) | ||||||||
| i magnitude | 16.29 (0.01) | ||||||||
| z magnitude | |||||||||
| G magnitude | 15.98 (0.004) | 16.01 | 15.98 | 15.98 (0.003) | |||||
| BP magnitude | 15.92 (0.004) | 15.86 | |||||||
| RP magnitude | 16.11 (0.009) | 16.13 | |||||||
| 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.