All names: Gaia EDR3 902481446181222144, GALEX J081355.6+331655, CBS 68, Gaia DR2 902481446181222144, USNO-B1.0 1232-00198925, Gaia DR3 902481446181222144, SDSS J081355.67+331654.8, SDSS J081355.66+331654.8, LAMOST J081355.66+331654.5, WD 0810+334
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Guo et al. 2015 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 13 55.66 (0.07) | 08 13 55.66 (0.1) | 08 13 55.66 | 08 13 55.67 (0.07) | 08 13 55.58 | ||||
| Declination | 33 16 54.41 (0.06) | 33 16 54.42 (0.08) | 33 16 54.41 | 33 16 54.94 (0.06) | 33 17 04.92 | ||||
| Spectral type | DA | DA | DA | DA2.6 | DA | ||||
| Effective temperature | [K] | 19270.0 (329) | 18663.0 (704) | ||||||
| log(g) | [cgs] | 8.08 (0.05) | 8.04 (0.04) | ||||||
| Mass | [M☉] | 0.67 (0.03) | 0.643 (0.03) | ||||||
| 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] | 5.53 (0.1) | 5.53 (0.1) | 5.53 | 5.53 (0.1) | ||||
| Distance | [pc] | 180.71 (3) | 180.81 (4) | 161.00 | 180.71 | 180.71 (3) | |||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -13.0519807 (0.1) | -13.08897792 (0.2) | -13.052 (0.1) | |||||
| Proper motion (declination) | [mas/yr] | -33.60604795 (0.07) | -33.72599138 (0.2) | -33.606 (0.07) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 17.10 | ||||||||
| V magnitude | |||||||||
| R magnitude | 17.30 | ||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 17.22 (0.009) | ||||||||
| g magnitude | 17.07 (0.005) | ||||||||
| r magnitude | 17.41 (0.005) | ||||||||
| i magnitude | 17.68 (0.007) | ||||||||
| z magnitude | 17.97 (0.02) | ||||||||
| G magnitude | 17.26 (0.008) | 17.28 | 17.26 | 17.26 (0.003) | |||||
| BP magnitude | 17.22 (0.008) | 17.19 | |||||||
| RP magnitude | 17.42 (0.01) | 17.41 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.010 | ||||||||
* 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.