All names: SDSS J130710.40+291137.8, OMHR J130710.44+291138.2, US 290, Gaia DR3 1461310189503542144, PB 3325, OMHR 87687, [BCF91] 677, Gaia DR2 1461310189503542144
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 13 07 10.39 | 13 07 10.41 (0.2) | |
| Declination | 29 11 37.71 | 29 11 37.88 (0.1) | |
| Spectral type | DA | DA | |
| Effective temperature | [K] | 15375.0 (791) | |
| log(g) | [cgs] | 7.79 (0.1) | |
| Mass | [M☉] | 0.502 (0.07) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 2.60 | 2.60 (0.2) |
| Distance | [pc] | 385.34 | 385.34 (31) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -17.192 (0.2) | |
| Proper motion (declination) | [mas/yr] | -10.153 (0.1) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 17.00 | ||
| V magnitude | 16.70 | ||
| R magnitude | |||
| I magnitude | |||
| J magnitude | |||
| H magnitude | |||
| K magnitude | |||
| u magnitude | 19.25 (0.03) | ||
| g magnitude | 18.89 (0.05) | ||
| r magnitude | 19.12 (0.02) | ||
| i magnitude | 19.35 (0.02) | ||
| z magnitude | 19.65 (0.08) | ||
| G magnitude | 18.95 | 18.95 (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.