All names: SDSS J101521.36+263550.7, Gaia EDR3 739200842720482176, Gaia DR3 739200842720482176, GALEX J101521.3+263550, SDSSJ101521.37+263550.7, SDSS J101521.37+263550.6, LAMOST J101521.36+263550.7, Gaia DR2 739200842720482176
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Guo et al. 2015 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 10 15 21.37 (0.1) | 10 15 21.37 | 10 15 21.37 (0.1) | |||
| Declination | 26 35 50.64 (0.1) | 26 35 50.70 | 26 35 50.75 (0.1) | |||
| Spectral type | sdOB | DBA? | sdB | |||
| Effective temperature | [K] | |||||
| log(g) | [cgs] | |||||
| Mass | [M☉] | |||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 0.18 (0.2) | 0.00 (0.2) | 0.18 (0.2) | ||
| Distance | [pc] | 5652.91 (5129) | 232558.14 (13071931) | 5652.91 (5129) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -1.761 (0.1) | -1.862 (0.3) | -1.761 (0.1) | ||
| Proper motion (declination) | [mas/yr] | -6.822 (0.1) | -6.4 (0.3) | -6.822 (0.1) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 17.63 (0.01) | 17.63 (0.01) | ||||
| g magnitude | 17.96 (0.006) | 17.96 (0.006) | ||||
| r magnitude | 18.45 (0.008) | 18.45 (0.008) | ||||
| i magnitude | 18.84 (0.01) | 18.84 (0.01) | ||||
| z magnitude | 19.10 (0.05) | 19.11 (0.05) | ||||
| G magnitude | 18.20 (0.003) | 18.23 (0.004) | 18.20 (0.003) | |||
| BP magnitude | 18.04 (0.01) | 17.97 (0.02) | ||||
| RP magnitude | 18.53 (0.04) | 18.49 (0.04) | ||||
| Pan g magnitude | 18.03 (0.001) | |||||
| Pan r magnitude | 18.44 (0.005) | |||||
| Pan i magnitude | 18.83 (0.006) | |||||
| Pan z magnitude | 19.10 (0.01) | |||||
| Pan y magnitude | 19.29 (0.01) | |||||
| E(B-V) | 0.020 | |||||
* 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.