All names: WDJ003908.38+303539.76, Gaia DR3 2858553485723741312, SDSS J003908.33+303538.9, Gaia DR2 2858553485723741312, WDJ00398.38+303539.75, J0039+3035, Gaia EDR3 2858553485723741312
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Bergeron et al. 2022 | Gaia DR2 | Stilism | Simbad | Gentile Fusillo et al. 2018 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 39 08.31 (0.5) | 00 39 08.31 | 00 39 08.38 (0.5) | 00 39 08.31 | |||||
| Declination | 30 35 38.51 (0.5) | 30 35 38.54 | 30 35 39.76 (0.5) | 30 35 38.54 | |||||
| Spectral type | DC | DC | DC | ||||||
| Effective temperature | [K] | 4605.0 (77) | |||||||
| log(g) | [cgs] | ||||||||
| Mass | [M☉] | 1.18 (0.02) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 5.1230 | |||||||
| log(H/He) | -3.39 | ||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 16.36 (0.7) | 15.61 (1) | 16.36 (0.7) | 15.61 (1) | ||||
| Distance | [pc] | 61.14 (3) | 64.05 (4) | 61.14 (3) | 64.05 (4) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -51.81154152 (0.8) | -52.92071598 (3) | -51.812 (0.8) | -52.92071598 | ||||
| Proper motion (declination) | [mas/yr] | -78.33138319 (0.8) | -78.33185667 (2) | -78.331 (0.8) | -78.33185667 | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 21.89 (0.3) | 21.89 (0.3) | |||||||
| g magnitude | 20.39 (0.03) | 20.39 (0.03) | |||||||
| r magnitude | 20.43 (0.04) | 20.43 (0.04) | |||||||
| i magnitude | 20.96 (0.1) | 20.96 (0.1) | |||||||
| z magnitude | 21.18 (0.5) | 21.18 (0.5) | |||||||
| G magnitude | 20.45 (0.09) | 20.54 | 20.45 (0.009) | 20.54 | |||||
| BP magnitude | 20.48 (0.09) | 20.47 | 20.47 | ||||||
| RP magnitude | 20.36 (0.1) | 20.66 | 20.66 | ||||||
| Pan g magnitude | 20.34 (0.02) | ||||||||
| Pan r magnitude | 20.39 (0.04) | ||||||||
| Pan i magnitude | 20.92 (0.05) | ||||||||
| Pan z magnitude | 21.62 (0.2) | ||||||||
| Pan y magnitude | 0.00 (0) | ||||||||
| 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.