All names: GALEX J151529.3-015624, SDSS J151529.30-015624.5, Gaia DR2 4415149762367336448, Gaia EDR3 4415149762367336448, Gaia DR3 4415149762367336448, TIC 38902602, 2MASS J15152931-0156245, SDSSJ151529.30-015624.5
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 15 15 29.30 (0.06) | 15 15 29.31 | 15 15 29.31 (0.06) | ||
| Declination | -01 56 24.61 (0.05) | -01 56 24.56 | -01 56 24.50 (0.05) | ||
| Spectral type | sd | sd | |||
| 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] | 0.60 (0.06) | 0.56 (0.1) | 0.60 (0.06) | |
| Distance | [pc] | 1665.56 (175) | 1786.99 (333) | 1665.56 (175) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -10.144 (0.07) | -10.585 (0.2) | -10.144 (0.07) | |
| Proper motion (declination) | [mas/yr] | -6.628 (0.05) | -6.237 (0.2) | -6.628 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.71 (0.1) | 16.79 (0.02) | |||
| H magnitude | 16.23 | 16.86 (0.03) | |||
| K magnitude | 15.19 | 16.95 (0.07) | |||
| u magnitude | 16.22 (0.006) | 16.24 (0.02) | |||
| g magnitude | 16.31 (0.004) | 16.31 (0.02) | |||
| r magnitude | 16.63 (0.004) | 16.64 (0.01) | |||
| i magnitude | 16.88 (0.005) | 16.89 (0.02) | |||
| z magnitude | 17.12 (0.01) | 17.13 (0.02) | |||
| G magnitude | 16.48 (0.003) | 16.51 (0.003) | 16.48 (0.003) | ||
| BP magnitude | 16.41 (0.009) | 16.38 (0.01) | |||
| RP magnitude | 16.59 (0.01) | 16.59 (0.01) | |||
| Pan g magnitude | 16.38 (0.003) | ||||
| Pan r magnitude | 16.64 (0.004) | ||||
| Pan i magnitude | 16.92 (0.004) | ||||
| Pan z magnitude | 17.13 (0.006) | ||||
| Pan y magnitude | 17.26 (0.007) | ||||
| E(B-V) | 0.128 | ||||
* 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.