All names: Gaia DR2 142103872072722432, Gaia DR3 142103872072722432, SDSS J030158.92+372204.3, Gaia EDR3 142103872072722432, SDSS J030158.92+372204.2, GALEX J030158.9+372205
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 01 58.94 (0.3) | 03 01 58.92 | 03 01 58.94 (0.7) | 03 01 58.91 (0.3) | 03 01 58.92 | ||||
| Declination | 37 22 04.30 (0.3) | 37 22 04.24 | 37 22 04.30 (0.5) | 37 22 04.26 (0.3) | 37 22 04.26 | ||||
| Spectral type | DAH | DAH | DA | ||||||
| Effective temperature | [K] | 28949.0 (432) | |||||||
| log(g) | [cgs] | 8.06 (0.09) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 1.35 (0.4) | 0.93 (0.9) | 1.35 (0.4) | |||||
| Distance | [pc] | 739.03 (217) | 1072.29 (1035) | 739.04 (217) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 17.47433166 (0.4) | 17.72020266 (1) | 17.474 (0.4) | |||||
| Proper motion (declination) | [mas/yr] | 2.471593307 (0.4) | 1.057087681 (0.9) | 2.472 (0.4) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 19.58 (0.03) | 19.58 (0.03) | 19.59 (0.04) | ||||||
| g magnitude | 19.55 (0.01) | 19.55 (0.01) | 19.57 (0.02) | ||||||
| r magnitude | 19.85 (0.02) | 19.86 (0.02) | 19.88 (0.02) | ||||||
| i magnitude | 20.12 (0.03) | 20.12 (0.03) | 20.12 (0.03) | ||||||
| z magnitude | 20.56 (0.2) | 20.57 (0.2) | 20.59 (0.2) | ||||||
| G magnitude | 19.70 (0.03) | 19.75 | 19.70 (0.005) | ||||||
| BP magnitude | 19.67 (0.03) | 19.65 | |||||||
| RP magnitude | 19.78 (0.09) | 19.97 | |||||||
| Pan g magnitude | 19.58 (0.01) | ||||||||
| Pan r magnitude | 19.89 (0.009) | ||||||||
| Pan i magnitude | 20.14 (0.01) | ||||||||
| Pan z magnitude | 20.32 (0.05) | ||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.099 | ||||||||
* 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.