All names: Gaia DR2 630767869277844864, GALEX J092438.1+155318, TIC 55380403, SDSS J092438.09+155319.0, PG 0921+161, Gaia DR3 630767869277844864, PG0921+161, 2MASS J09243809+1553191, Gaia EDR3 630767869277844864
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 09 24 38.09 (0.04) | 09 24 38.13 | 09 24 38.10 (0.04) | ||
| Declination | 15 53 19.20 (0.04) | 15 53 18.99 | 15 53 19.11 (0.04) | ||
| Spectral type | sd | sdB0VIIHe9 | |||
| 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] | 0.90 (0.06) | 0.80 (0.09) | 0.90 (0.06) | |
| Distance | [pc] | 1115.82 (74) | 1256.91 (140) | 1115.82 (74) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -7.102 (0.06) | -7.13 (0.1) | -7.102 (0.06) | |
| Proper motion (declination) | [mas/yr] | 5.57 (0.04) | 5.762 (0.1) | 5.57 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.33 | ||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.25 (0.05) | 15.25 (0.05) | |||
| H magnitude | 15.13 (0.09) | 15.13 (0.09) | |||
| K magnitude | 15.41 (0.2) | 15.41 (0.2) | |||
| u magnitude | 13.98 (0.003) | 14.01 (0.02) | |||
| g magnitude | 14.26 (0.003) | 14.29 (0.01) | |||
| r magnitude | 14.78 (0.004) | 14.78 (0.02) | |||
| i magnitude | 15.14 (0.004) | 15.14 (0.02) | |||
| z magnitude | 15.48 (0.005) | 15.48 (0.02) | |||
| G magnitude | 14.55 (0.003) | 14.56 (0.001) | 14.55 (0.003) | ||
| BP magnitude | 14.40 (0.004) | 14.34 (0.01) | |||
| RP magnitude | 14.83 (0.004) | 14.83 (0.004) | |||
| Pan g magnitude | 14.37 (0.004) | ||||
| Pan r magnitude | 14.81 (0.002) | ||||
| Pan i magnitude | 15.16 (0.003) | ||||
| Pan z magnitude | 15.45 (0.004) | ||||
| Pan y magnitude | 15.64 (0.006) | ||||
| E(B-V) | 0.028 | ||||
* 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.