All names: Gaia DR2 3848213662682651520, SDSS J094458.80+040048.4, Gaia DR3 3848213662682651520
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 09 44 58.78 | 09 44 58.81 (0.1) | |
| Declination | 04 00 48.50 | 04 00 48.51 (0.1) | |
| Spectral type | DB | DB | |
| Effective temperature | [K] | 28375.0 (4009) | |
| log(g) | [cgs] | 9.13 (0.05) | |
| Mass | [M☉] | 1.243 (0.02) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 6.88 | 6.88 (0.2) |
| Distance | [pc] | 145.31 | 145.31 (4) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -31.466 (0.2) | |
| Proper motion (declination) | [mas/yr] | -0.8 (0.1) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | 18.76 (0.07) | ||
| H magnitude | 18.60 (0.2) | ||
| K magnitude | |||
| u magnitude | 17.59 (0.02) | ||
| g magnitude | 17.88 (0.02) | ||
| r magnitude | 18.32 (0.01) | ||
| i magnitude | 18.57 (0.02) | ||
| z magnitude | 18.90 (0.05) | ||
| G magnitude | 18.10 | 18.10 (0.003) | |
| BP magnitude | |||
| RP magnitude | |||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | |||
* 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.