All names: WISEA J153733.81-020021.9, Gaia DR2 4403797751487496704, GALEX J153733.8-020020, SDSS J153733.82-020021.9, Gaia DR3 4403797751487496704, UCAC4 440-060397, WISE J153733.82-020021.8, FBS 1534-018, BPS CS 30312-0064, PG1534-018, SDSS J153733.82-020021.8, UCAC2 31020718, PG 1534-018, 2MASS J15373382-0200220, TIC 46252990
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 37 33.80 | 15 37 33.82 (0.04) | ||
| Declination | -02 00 21.93 | -02 00 21.91 (0.03) | ||
| Spectral type | He-sdO | sdOC6.5VIIHe40 | ||
| 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 (0.07) | 0.52 (0.04) | |
| Distance | [pc] | 2472.80 (450) | 1905.12 (162) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 5.858 (0.1) | 5.939 (0.05) | |
| Proper motion (declination) | [mas/yr] | 0.8 (0.2) | 0.848 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.90 (0.04) | |||
| V magnitude | 15.01 (0) | |||
| R magnitude | 15.58 (0.07) | |||
| I magnitude | ||||
| J magnitude | 15.40 (0.05) | 15.40 (0.05) | ||
| H magnitude | 15.32 (0.09) | 15.32 (0.09) | ||
| K magnitude | 15.72 (0.3) | 15.72 (0.3) | ||
| u magnitude | 14.49 (0.004) | |||
| g magnitude | 14.78 (0.004) | 14.86 (0.01) | ||
| r magnitude | 15.17 (0.004) | 15.24 (0.04) | ||
| i magnitude | 15.47 (0.005) | 15.53 (0.1) | ||
| z magnitude | 15.76 (0.006) | |||
| G magnitude | 15.00 (0.001) | 14.97 (0.003) | ||
| BP magnitude | 14.83 (0.01) | |||
| RP magnitude | 15.17 (0.003) | |||
| Pan g magnitude | 14.85 (0.004) | |||
| Pan r magnitude | 15.20 (0.002) | |||
| Pan i magnitude | 15.50 (0.002) | |||
| Pan z magnitude | 15.74 (0.004) | |||
| Pan y magnitude | 15.90 (0.002) | |||
| E(B-V) | 0.098 | |||
* 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.