All names: SDSS J091531.34+645644.0, Gaia DR3 1067716813814487296, WDS J09156+6456B, Gaia DR2 1067716813812705280, Gaia EDR3 1067716813814487296, WD 0911+651, ** LDS 1224B, LP 60-236, WDJ091531.39+645644.35
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 15 31.18 (0.06) | 09 15 31.19 (0.1) | 09 15 31.18 | 09 15 31.40 (0.06) | 09 15 31.19 | 09 15 33.12 | |||||
| Declination | 64 56 43.20 (0.09) | 64 56 43.24 (0.3) | 64 56 43.20 | 64 56 44.35 (0.09) | 64 56 43.24 | 64 56 31.20 | |||||
| Spectral type | DQ | D | ? | ||||||||
| Effective temperature | [K] | 7126.0 | 6917.0 | 7430.0 (75) | |||||||
| log(g) | [cgs] | 7.79 | 7.69 | 7.87 (0.02) | |||||||
| Mass | [M☉] | 0.475 | 0.406 | 0.502 (0.02) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 1.0870 | 1.0880 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 10.61 (0.1) | 10.35 (0.3) | 10.61 | 10.61 (0.1) | 10.35 (0.3) | |||||
| Distance | [pc] | 94.24 (1) | 96.59 (3) | 94.24 | 94.24 (1) | 96.59 (3) | |||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -84.90443057 (0.08) | -84.568 (0.3) | -84.904 (0.08) | -84.56825897 | ||||||
| Proper motion (declination) | [mas/yr] | -72.12806939 (0.1) | -71.629 (0.6) | -72.128 (0.1) | -71.62858886 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 18.47 (0.02) | 18.47 (0.02) | |||||||||
| g magnitude | 18.19 (0.007) | 18.19 (0.007) | |||||||||
| r magnitude | 18.01 (0.007) | 18.01 (0.007) | |||||||||
| i magnitude | 17.85 (0.009) | 17.85 (0.009) | |||||||||
| z magnitude | 22.83 (0.8) | 22.83 (0.8) | |||||||||
| G magnitude | 18.03 (0.01) | 18.06 | 18.03 | 18.03 (0.003) | 18.06 | ||||||
| BP magnitude | 18.13 (0.01) | 18.11 | 18.11 | ||||||||
| RP magnitude | 17.72 (0.02) | 17.72 | 17.72 | ||||||||
| Pan g magnitude | 18.17 (0.02) | ||||||||||
| Pan r magnitude | 17.99 (0.007) | ||||||||||
| Pan i magnitude | 18.10 (0.01) | ||||||||||
| Pan z magnitude | 18.10 (0.02) | ||||||||||
| Pan y magnitude | 17.88 (0.03) | ||||||||||
| E(B-V) | 0.005 | ||||||||||
* 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.