All names: GALEXJ13152+0245, WISE J131512.38+024531.8, GALEX J131512.4+024531, 2MASS J13151237+0245315, WISEA J131512.37+024531.6, GALEX J131512.4+024532, TIC 397074555, Gaia DR2 3691534600049973632, Gaia DR3 3691534600049973632, UCAC2 32708971, UCAC4 464-049046, SDSS J131512.39+024531.7
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 13 15 12.49 | 13 15 12.39 (0.04) | ||
| Declination | 02 45 32.16 | 02 45 31.70 (0.03) | ||
| Spectral type | sdO | sdO | ||
| Effective temperature | [K] | 41210.0 (1470) | ||
| log(g) | [cgs] | 5.46 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.41 (0.08) | 0.37 (0.05) | |
| Distance | [pc] | 2463.66 (501) | 2692.51 (389) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -20.266 (0.2) | -20.811 (0.07) | |
| Proper motion (declination) | [mas/yr] | -10.684 (0.08) | -10.733 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.69 (0.03) | |||
| V magnitude | 14.93 (0.07) | |||
| R magnitude | 15.10 (0.2) | |||
| I magnitude | ||||
| J magnitude | 15.15 (0.06) | 15.14 (0.005) | ||
| H magnitude | 15.23 (0.1) | 15.07 (0.008) | ||
| K magnitude | 14.65 (0.1) | 15.09 (0.01) | ||
| u magnitude | 14.34 (0.004) | 14.34 (0.02) | ||
| g magnitude | 14.63 (0.003) | 14.65 (0.02) | ||
| r magnitude | 15.07 (0.004) | 15.07 (0.02) | ||
| i magnitude | 15.33 (0.005) | 15.33 (0.02) | ||
| z magnitude | 15.58 (0.007) | 15.59 (0.02) | ||
| G magnitude | 14.86 (0.0008) | 14.85 (0.003) | ||
| BP magnitude | 14.68 (0.005) | |||
| RP magnitude | 15.03 (0.002) | |||
| Pan g magnitude | 14.74 (0.003) | |||
| Pan r magnitude | 15.09 (0.003) | |||
| Pan i magnitude | 15.37 (0.002) | |||
| Pan z magnitude | 15.57 (0.002) | |||
| Pan y magnitude | 15.70 (0.003) | |||
| E(B-V) | 0.023 | |||
* 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.