All names: Gaia DR3 1181028908759001472, GALEX J150436.6+124813, Gaia DR2 1181028908759001472, PG1502+129, SDSS J150436.69+124812.4, PG 1502+129, 2MASS J15043670+1248125, LAMOST J150436.67+124813.4, TIC 147996222
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 04 36.70 | 15 04 36.69 (0.04) | ||
| Declination | 12 48 12.33 | 12 48 12.50 (0.04) | ||
| Spectral type | He-sdO | sdOB | ||
| Effective temperature | [K] | 51230.0 (202) | ||
| log(g) | [cgs] | 5.98 (0.05) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.22 (0.09) | 0.36 (0.04) | |
| Distance | [pc] | 4616.81 (1891) | 2777.78 (333) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -7.236 (0.1) | -7.088 (0.05) | |
| Proper motion (declination) | [mas/yr] | 2.755 (0.2) | 2.549 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.46 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.10 (0.09) | 16.10 (0.09) | ||
| H magnitude | 16.20 (0.2) | 16.20 (0.2) | ||
| K magnitude | 15.90 | |||
| u magnitude | 14.75 (0.004) | 14.78 (0.01) | ||
| g magnitude | 15.16 (0.004) | 15.19 (0.01) | ||
| r magnitude | 15.70 (0.005) | 15.68 (0.02) | ||
| i magnitude | 16.04 (0.005) | 16.04 (0.02) | ||
| z magnitude | 16.40 (0.009) | 16.41 (0.01) | ||
| G magnitude | 15.45 (0.001) | 15.43 (0.003) | ||
| BP magnitude | 15.22 (0.01) | |||
| RP magnitude | 15.74 (0.004) | |||
| Pan g magnitude | 15.27 (0.003) | |||
| Pan r magnitude | 15.69 (0.002) | |||
| Pan i magnitude | 16.05 (0.004) | |||
| Pan z magnitude | 16.35 (0.003) | |||
| Pan y magnitude | 16.54 (0.008) | |||
| E(B-V) | 0.028 | |||
* 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.