All names: TIC 374993719, Gaia DR3 3160522848078571008, SDSS J070240.50+114741.6, Gaia DR2 3160522848078571008, 2MASS J07024049+1147418, SDSSJ070240.50+114741.6, LAMOST J070240.50+114741.6
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 07 02 40.51 | 07 02 40.51 (0.05) | ||
| Declination | 11 47 41.68 | 11 47 41.64 (0.04) | ||
| Spectral type | He-sdO | sdOBHe | ||
| Effective temperature | [K] | 44116.0 (404) | ||
| log(g) | [cgs] | 5.73 (0.08) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.35 (0.07) | 0.34 (0.05) | |
| Distance | [pc] | 2891.01 (613) | 2948.98 (434) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 0.077 (0.1) | 0.279 (0.06) | |
| Proper motion (declination) | [mas/yr] | -1.92 (0.1) | -1.864 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.31 (0.1) | 16.31 (0.1) | ||
| H magnitude | 16.09 | |||
| K magnitude | 15.45 | |||
| u magnitude | 15.22 (0.004) | 15.24 (0.01) | ||
| g magnitude | 15.53 (0.004) | 15.58 (0.01) | ||
| r magnitude | 16.00 (0.005) | 16.02 (0.009) | ||
| i magnitude | 16.32 (0.006) | 16.32 (0.01) | ||
| z magnitude | 16.62 (0.009) | 16.62 (0.01) | ||
| G magnitude | 15.79 (0.002) | 15.77 (0.003) | ||
| BP magnitude | 15.58 (0.009) | |||
| RP magnitude | 16.00 (0.005) | |||
| Pan g magnitude | 15.63 (0.005) | |||
| Pan r magnitude | 16.02 (0.002) | |||
| Pan i magnitude | 16.36 (0.004) | |||
| Pan z magnitude | 16.62 (0.002) | |||
| Pan y magnitude | 16.82 (0.006) | |||
| E(B-V) | 0.083 | |||
* 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.