All names: SDSS J124331.37-063455.40, Gaia EDR3 3676717031598343936, Gaia DR2 3676717031598343936, GALEX J124331.4-063455, SDSS J124331.37-063455.4, Gaia DR3 3676717031598343936
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Bedard et al. 2020 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | Genest-Beaulieu & Bergeron 2019 (photometric) | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 43 31.37 (0.5) | 12 43 31.37 | 12 43 31.37 (0.8) | 12 43 31.38 (0.5) | 12 43 31.37 | ||||||
| Declination | -06 34 55.39 (0.3) | -06 34 55.47 | -06 34 55.40 (0.4) | -06 34 55.47 (0.3) | -06 34 55.44 | ||||||
| Spectral type | DB | DB | DB | DB | |||||||
| Effective temperature | [K] | 30235.0 (1969) | 28126.0 | 29736.0 | 28982.0 (967) | ||||||
| log(g) | [cgs] | 7.64 (0.2) | 7.63 | 7.85 | 7.90 (0.1) | ||||||
| Mass | [M☉] | 0.45 (0.09) | 0.438 | 0.537 | 0.559 (0.05) | ||||||
| log(Luminosity) | [L☉] | -0.68 (0.2) | |||||||||
| Cooling age | [Gyr] | 0.0074 (0.004) | |||||||||
| log(H/He) | -3.47 | ||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(N/He) | |||||||||||
| log(O/He) | |||||||||||
| log(Na/He) | |||||||||||
| log(Mg/He) | |||||||||||
| log(Al/He) | |||||||||||
| log(Si/He) | |||||||||||
| log(P/He) | |||||||||||
| log(S/He) | |||||||||||
| log(Cl/He) | |||||||||||
| log(Sc/He) | |||||||||||
| log(Ti/He) | |||||||||||
| log(V/He) | |||||||||||
| log(Cr/He) | |||||||||||
| log(Mn/He) | |||||||||||
| log(Fe/He) | |||||||||||
| log(Co/He) | |||||||||||
| log(Ni/He) | |||||||||||
| log(Cu/He) | |||||||||||
| log(Zn/He) | |||||||||||
| log(Ga/He) | |||||||||||
| log(Ge/He) | |||||||||||
| log(Sr/He) | |||||||||||
| Parallax | [mas] | 1.58 (0.6) | 0.98 (0.8) | 1.58 (0.6) | |||||||
| Distance | [pc] | 632.93 (248) | 1017.93 (789) | 632.95 (248) | |||||||
| Composition | He | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -6.577465804 (0.8) | -7.353315729 (2) | -6.577 (0.8) | |||||||
| Proper motion (declination) | [mas/yr] | 4.787869217 (0.6) | 5.434006197 (0.8) | 4.788 (0.6) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.71 (0.04) | 19.71 (0.04) | 19.71 (0.04) | ||||||||
| g magnitude | 19.86 (0.02) | 19.89 (0.03) | 19.89 (0.03) | ||||||||
| r magnitude | 20.26 (0.03) | 20.25 (0.02) | 20.25 (0.02) | ||||||||
| i magnitude | 20.57 (0.05) | 20.57 (0.05) | 20.57 (0.05) | ||||||||
| z magnitude | 21.67 (0.4) | 21.59 (0.4) | 21.59 (0.4) | ||||||||
| G magnitude | 20.05 (0.05) | 20.11 | 20.05 (0.006) | ||||||||
| BP magnitude | 19.92 (0.05) | 19.95 | |||||||||
| RP magnitude | 20.35 (0.1) | 20.14 | |||||||||
| Pan g magnitude | |||||||||||
| Pan r magnitude | |||||||||||
| Pan i magnitude | |||||||||||
| Pan z magnitude | |||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.024 | ||||||||||
* 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.