All names: Gaia EDR3 1929874942357995136, Gaia DR3 1929874942357995136, GALEXJ23032+3925, Gaia DR2 1929874942357995136, UCAC4 648-117798, 2MASS J23031444+3925468, GALEX J230314.3+392544, GALEX J230314.4+392544
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 23 03 14.46 (0.02) | 23 03 14.42 | 23 03 14.45 (0.02) | ||
| Declination | 39 25 46.84 (0.02) | 39 25 44.59 | 39 25 46.80 (0.02) | ||
| Spectral type | sdOB | sdB | |||
| Effective temperature | [K] | 35620.0 (690) | |||
| log(g) | [cgs] | 5.64 (0.3) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.29 (0.03) | 1.34 (0.05) | 1.29 (0.03) | |
| Distance | [pc] | 773.87 (20) | 746.32 (26) | 773.87 (20) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 4.214 (0.04) | 4.174 (0.06) | 4.214 (0.04) | |
| Proper motion (declination) | [mas/yr] | 2.37 (0.03) | 2.339 (0.06) | 2.37 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.98 (0.01) | ||||
| V magnitude | 14.21 (0.06) | ||||
| R magnitude | 14.26 (0.08) | ||||
| I magnitude | |||||
| J magnitude | 14.60 (0.04) | 14.60 (0.04) | |||
| H magnitude | 14.77 (0.07) | 14.77 (0.07) | |||
| K magnitude | 14.93 (0.1) | 14.93 (0.1) | |||
| u magnitude | |||||
| g magnitude | 13.93 (0.05) | ||||
| r magnitude | 14.33 (0.04) | ||||
| i magnitude | 14.62 (0.04) | ||||
| z magnitude | |||||
| G magnitude | 14.11 (0.003) | 14.13 (0.0005) | 14.11 (0.003) | ||
| BP magnitude | 13.99 (0.003) | 13.95 (0.006) | |||
| RP magnitude | 14.32 (0.004) | 14.32 (0.002) | |||
| Pan g magnitude | 13.91 (0.009) | ||||
| Pan r magnitude | 14.28 (0.001) | ||||
| Pan i magnitude | 14.66 (0.002) | ||||
| Pan z magnitude | 14.84 (0.003) | ||||
| Pan y magnitude | 15.01 (0.007) | ||||
| E(B-V) | 0.094 | ||||
* 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.