All names: EGGR 337, WD 0033+77, LP 12-438, Gaia DR3 564116917513323264, WD 0033+771, GD 411, Gaia EDR3 564116917513323264, Gaia DR2 564116917513323264, GALEX J003635.4+772307, UCAC4 837-001001, USNO-B1.0 1673-00006272
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 36 36.11 (0.03) | 00 36 36.09 (0.05) | 00 36 36.11 | 00 36 35.70 (0.03) | 00 36 31.51 | ||||
| Declination | 77 23 08.21 (0.03) | 77 23 08.21 (0.04) | 77 23 08.21 | 77 23 08.27 (0.03) | 77 23 06.36 | ||||
| Spectral type | DA | DA | DA | DA5.6 | DA | ||||
| Effective temperature | [K] | 8850.0 (130) | 8940.0 (131) | 16698.0 (247) | |||||
| log(g) | [cgs] | 8.45 (0.06) | 8.61 (0.06) | 8.07 (0.01) | |||||
| Mass | [M☉] | 0.89 (0.04) | 0.99 (0.04) | 0.657 (0.01) | |||||
| log(Luminosity) | [L☉] | -3.33 | |||||||
| 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] | 8.97 (0.04) | 9.01 (0.05) | 8.97 | 8.97 (0.04) | ||||
| Distance | [pc] | 111.49 (0.5) | 111.01 (0.6) | 33.90 (2) | 30.00 | 111.49 | 111.49 (0.5) | ||
| Composition | H | H | |||||||
| Proper motion (right ascension) | [mas/yr] | 83.11456311 (0.04) | 83.23485126 (0.09) | 83.115 (0.04) | |||||
| Proper motion (declination) | [mas/yr] | -3.68492578 (0.05) | -3.690206816 (0.08) | -3.685 (0.05) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 16.10 | ||||||||
| V magnitude | |||||||||
| R magnitude | 15.68 | ||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 16.45 (0.003) | 16.47 | 16.45 | 16.45 (0.003) | |||||
| BP magnitude | 16.40 (0.003) | 16.39 | |||||||
| RP magnitude | 16.60 (0.004) | 16.60 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.006 | ||||||||
* 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.