All names: CNS5 3147, GALEX J124445.0-350745, 2MASS J12444506-3507439, WDJ124445.04-350744.18, Gaia EDR3 6158704208764041472, CE 273, WD 1242-348, Gaia DR2 6158704208764041472, TIC 131216669, Gaia DR3 6158704208764041472
| Parameter | Unit | Gaia EDR3 | O'Brien et al. 2024 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 44 44.86 (0.02) | 12 44 44.87 (0.03) | 12 44 44.86 | 12 44 45.04 (0.02) | 12 44 44.87 | 12 44 44.57 | |||
| Declination | -35 07 47.69 (0.01) | -35 07 47.58 (0.02) | -35 07 47.69 | -35 07 44.18 (0.01) | -35 07 47.58 | -35 07 42.60 | |||
| Spectral type | DQ | DQ | DQ | DQ | |||||
| Effective temperature | [K] | 8743.0 (76) | 8191.0 (22) | ||||||
| log(g) | [cgs] | 8.04 (0.02) | 7.88 (0.005) | ||||||
| Mass | [M☉] | 0.605 (0.01) | 0.506 (0.004) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 44.98 (0.02) | 44.98 (0.02) | 45.07 (0.04) | 44.98 | 44.98 (0.02) | 45.07 (0.04) | ||
| Distance | [pc] | 22.23 (0.01) | 22.23 (0.01) | 22.19 (0.02) | 22.23 | 22.23 (0.01) | 22.19 (0.02) | ||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -141.328255 (0.02) | -141.4381713 (0.06) | -141.328 (0.02) | -141.4381713 | ||||
| Proper motion (declination) | [mas/yr] | -219.1019719 (0.02) | -218.9818523 (0.06) | -219.102 (0.02) | -218.9818523 | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 14.74 | ||||||||
| V magnitude | 14.62 | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 14.39 (0.02) | ||||||||
| H magnitude | 14.32 (0.04) | ||||||||
| K magnitude | 14.33 (0.08) | ||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 14.53 (0.0009) | 14.55 | 14.53 | 14.53 (0.003) | 14.55 | ||||
| BP magnitude | 14.60 (0.0009) | 14.59 | 14.59 | ||||||
| RP magnitude | 14.40 (0.001) | 14.41 | 14.41 | ||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.001 | ||||||||
* 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.