All names: 2MASS J15052589+7531091, PG1506+757, Gaia DR3 1701053481555512192, Gaia DR2 1701053481555512192, UCAC4 828-015854, GALEX J150525.7+753109, TIC 257046325, PG 1506+757, FBS 1505+757, FBS B 1023, Gaia EDR3 1701053481555512192
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 15 05 25.90 (0.04) | 15 05 26.08 | 15 05 25.94 (0.04) | ||
| Declination | 75 31 09.44 (0.04) | 75 31 09.67 | 75 31 09.49 (0.04) | ||
| Spectral type | sdOB | sdBO | |||
| 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] | 0.61 (0.04) | 0.61 (0.06) | 0.61 (0.04) | |
| Distance | [pc] | 1646.36 (108) | 1647.45 (158) | 1646.36 (108) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -9.559 (0.05) | -9.444 (0.1) | -9.559 (0.05) | |
| Proper motion (declination) | [mas/yr] | -3.295 (0.05) | -3.274 (0.1) | -3.295 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.67 (0.05) | ||||
| V magnitude | 15.86 (0.08) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.53 (0.1) | 16.53 (0.1) | |||
| H magnitude | 16.54 | ||||
| K magnitude | 15.62 | ||||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 15.97 (0.003) | 15.99 (0.002) | 15.97 (0.003) | ||
| BP magnitude | 15.83 (0.004) | 15.78 (0.01) | |||
| RP magnitude | 16.26 (0.006) | 16.26 (0.004) | |||
| Pan g magnitude | 15.81 (0.003) | ||||
| Pan r magnitude | 16.22 (0.003) | ||||
| Pan i magnitude | 16.59 (0.003) | ||||
| Pan z magnitude | 16.87 (0.006) | ||||
| Pan y magnitude | 17.05 (0.008) | ||||
| E(B-V) | 0.026 | ||||
* 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.