All names: Gaia DR3 868529562204066688, UCAC4 576-040859, 2MASS J07371426+2505546, SDSS J073714.25+250554.6, LAMOST J073714.25+250554.6, SDSSJ073714.25+250554.6, Gaia DR2 868529562204066688
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 07 37 14.26 | 07 37 14.25 (0.04) | ||
| Declination | 25 05 54.64 | 25 05 54.67 (0.04) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 27400.0 (404) | ||
| log(g) | [cgs] | 5.46 (0.06) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.45 (0.07) | 0.46 (0.04) | |
| Distance | [pc] | 2209.46 (358) | 2194.91 (217) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 0.405 (0.1) | 0.656 (0.05) | |
| Proper motion (declination) | [mas/yr] | 0.188 (0.1) | 0.026 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.40 (0.02) | |||
| V magnitude | 15.50 (0.01) | |||
| R magnitude | 15.97 (0.1) | |||
| I magnitude | ||||
| J magnitude | 16.03 (0.06) | 16.03 (0.06) | ||
| H magnitude | 16.15 (0.1) | 16.15 (0.1) | ||
| K magnitude | 15.89 (0.2) | 15.89 (0.2) | ||
| u magnitude | 15.22 (0.004) | 15.22 (0.004) | ||
| g magnitude | 15.27 (0.003) | 15.33 (0.02) | ||
| r magnitude | 15.71 (0.003) | 15.75 (0.03) | ||
| i magnitude | 16.02 (0.004) | 16.02 (0.004) | ||
| z magnitude | 16.31 (0.008) | 16.31 (0.008) | ||
| G magnitude | 15.52 (0.001) | 15.51 (0.003) | ||
| BP magnitude | 15.33 (0.006) | |||
| RP magnitude | 15.72 (0.005) | |||
| Pan g magnitude | 15.35 (0.003) | |||
| Pan r magnitude | 15.73 (0.004) | |||
| Pan i magnitude | 16.07 (0.002) | |||
| Pan z magnitude | 16.32 (0.004) | |||
| Pan y magnitude | 16.46 (0.005) | |||
| E(B-V) | 0.037 | |||
* 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.