All names: Gaia DR2 1170648346466710912, SDSSJ152538.14+134201.0, SDSS J152538.15+134201.0, GALEX J152538.1+134200, Gaia DR3 1170648346466710912, SDSS J152538.14+134201.0, SDSS J152538.16+134200.9
| Parameter | Unit | Geier 2020 | Simbad |
|---|---|---|---|
| Right ascension | 15 25 38.15 | 15 25 38.15 (0.1) | |
| Declination | 13 42 01.01 | 13 42 01.02 (0.1) | |
| Spectral type | He-sdOB | sdOBHe | |
| 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] | -0.40 (0.2) | |
| Distance | [pc] | ||
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -14.363 (0.4) | -14.433 (0.2) |
| Proper motion (declination) | [mas/yr] | -2.798 (0.3) | -2.677 (0.2) |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | |||
| H magnitude | |||
| K magnitude | |||
| u magnitude | 18.00 (0.01) | 18.00 (0.02) | |
| g magnitude | 18.28 (0.007) | 18.28 (0.007) | |
| r magnitude | 18.76 (0.01) | 18.73 (0.01) | |
| i magnitude | 19.03 (0.01) | 19.02 (0.02) | |
| z magnitude | 19.27 (0.06) | 19.26 (0.05) | |
| G magnitude | 18.55 (0.003) | 18.51 (0.003) | |
| BP magnitude | 18.35 (0.02) | ||
| RP magnitude | 18.71 (0.03) | ||
| Pan g magnitude | 18.34 (0.006) | ||
| Pan r magnitude | 18.74 (0.007) | ||
| Pan i magnitude | 19.05 (0.01) | ||
| Pan z magnitude | 19.23 (0.02) | ||
| Pan y magnitude | 19.33 (0.03) | ||
| E(B-V) | |||
* 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.