All names: TIC 272672455, PG1536+690, Gaia DR3 1647303168437152128, PG 1536+690, FBS 1536+690, FBS B 838, GALEX J153648.4+685208, Gaia DR2 1647303168437152128, 2MASS J15364878+6852076, UCAC4 795-023807, Gaia EDR3 1647303168437152128
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 15 36 48.77 (0.03) | 15 36 48.83 | 15 36 48.77 (0.03) | ||
| Declination | 68 52 07.13 (0.03) | 68 52 08.64 | 68 52 07.51 (0.03) | ||
| Spectral type | He-sdO | sdOC2VIIIHe40 | |||
| 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] | 0.66 (0.03) | 0.74 (0.04) | 0.66 (0.03) | |
| Distance | [pc] | 1521.38 (73) | 1357.04 (81) | 1521.38 (73) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -1.637 (0.04) | -1.752 (0.08) | -1.637 (0.04) | |
| Proper motion (declination) | [mas/yr] | -23.67 (0.04) | -23.707 (0.08) | -23.67 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.53 (0.07) | ||||
| V magnitude | 14.65 (0.01) | ||||
| R magnitude | 14.90 (0.06) | ||||
| I magnitude | |||||
| J magnitude | 15.37 (0.06) | 15.37 (0.06) | |||
| H magnitude | 15.40 (0.1) | 15.40 (0.1) | |||
| K magnitude | 15.09 | ||||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 14.62 (0.003) | 14.64 (0.0009) | 14.62 (0.003) | ||
| BP magnitude | 14.44 (0.003) | 14.38 (0.009) | |||
| RP magnitude | 14.96 (0.004) | 14.95 (0.003) | |||
| Pan g magnitude | 14.46 (0.003) | ||||
| Pan r magnitude | 14.90 (0.002) | ||||
| Pan i magnitude | 15.29 (0.004) | ||||
| Pan z magnitude | 15.57 (0.004) | ||||
| Pan y magnitude | 15.77 (0.004) | ||||
| E(B-V) | 0.021 | ||||
* 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.