All names: HE 1204-3217, EC 12042-3217, GALEX J120647.5-323433, USNO-B1.0 0574-00362373, Gaia DR2 3466326581136347520, WD1204-322, Gaia EDR3 3466326581136347520, WDJ120647.61-323433.11, 2MASS J12064762-3234332, Gaia DR3 3466326581136347520, TIC 142387762, WD 1204-322
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Koester et al. 2001 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 06 47.53 (0.03) | 12 06 47.54 (0.05) | 12 06 47.60 | 12 06 47.53 | 12 06 47.61 (0.03) | 12 06 47.54 | 12 06 46.78 | ||||
| Declination | -32 34 33.57 (0.02) | -32 34 33.56 (0.03) | -32 34 34.00 | -32 34 33.57 | -32 34 33.11 (0.02) | -32 34 33.56 | -32 34 30.00 | ||||
| Spectral type | DA | DA | DA | DA2.2 | DA1 | ||||||
| Effective temperature | [K] | 22440.0 (340) | 21263.0 (41) | 20005.0 (61) | 21339.0 (264) | ||||||
| log(g) | [cgs] | 7.97 (0.05) | 8.00 (0.007) | 7.92 (0.01) | 8.06 (0.01) | ||||||
| Mass | [M☉] | 0.61 (0.03) | 0.58 | 0.659 (0.009) | |||||||
| 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] | 10.77 (0.04) | 10.73 (0.06) | 10.77 | 10.78 (0.04) | 10.73 (0.06) | |||||
| Distance | [pc] | 92.81 (0.4) | 93.20 (0.5) | 107.00 | 92.81 | 92.81 (0.4) | 93.20 (0.5) | ||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -63.72115692 (0.04) | -63.78855298 (0.09) | -63.721 (0.04) | -63.78855298 | ||||||
| Proper motion (declination) | [mas/yr] | -28.53572784 (0.03) | -28.58190677 (0.04) | -28.536 (0.03) | -28.58190677 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 15.50 | ||||||||||
| V magnitude | 15.68 | 15.68 | 15.68 | ||||||||
| R magnitude | 15.20 | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.03 (0.09) | ||||||||||
| H magnitude | 16.18 (0.2) | ||||||||||
| K magnitude | |||||||||||
| u magnitude | |||||||||||
| g magnitude | |||||||||||
| r magnitude | |||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 15.60 (0.002) | 15.62 | 15.60 | 15.60 (0.003) | 15.62 | ||||||
| BP magnitude | 15.52 (0.002) | 15.49 | 15.49 | ||||||||
| RP magnitude | 15.79 (0.003) | 15.80 | 15.80 | ||||||||
| Pan g magnitude | |||||||||||
| Pan r magnitude | |||||||||||
| Pan i magnitude | |||||||||||
| Pan z magnitude | |||||||||||
| Pan y magnitude | |||||||||||
| 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.