All names: 2MASS J07120239+1133324, Gaia DR2 3159937564294110080, TYC 770-941-1, Gaia DR3 3159937564294110080, TIC 262753627, Gaia EDR3 3159937564294110080, TYC770-941-1, LAMOST J071202.40+113332.4
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 07 12 02.39 (0.05) | 07 12 02.40 | 07 12 02.40 (0.05) | ||
| Declination | 11 33 32.40 (0.04) | 11 33 32.45 | 11 33 32.48 (0.04) | ||
| Spectral type | sdB | sdBHe5 | |||
| Effective temperature | [K] | 28812.0 (164) | |||
| log(g) | [cgs] | 5.69 (0.02) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 2.50 (0.05) | 2.52 (0.06) | 2.50 (0.05) | |
| Distance | [pc] | 400.58 (9) | 397.28 (1e+01) | 400.58 (9) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -1.527 (0.06) | -1.695 (0.1) | -1.527 (0.06) | |
| Proper motion (declination) | [mas/yr] | -4.995 (0.06) | -5.007 (0.09) | -4.995 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 11.94 (0.08) | ||||
| V magnitude | 12.23 (0.2) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 13.06 (0.02) | 13.06 (0.02) | |||
| H magnitude | 13.16 (0.03) | 13.16 (0.03) | |||
| K magnitude | 13.22 (0.04) | 13.22 (0.04) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 12.44 (0.003) | 12.46 (0.0007) | 12.44 (0.003) | ||
| BP magnitude | 12.32 (0.003) | 12.26 (0.009) | |||
| RP magnitude | 12.71 (0.004) | 12.70 (0.004) | |||
| Pan g magnitude | 12.05 | ||||
| Pan r magnitude | 12.58 | ||||
| Pan i magnitude | 12.95 | ||||
| Pan z magnitude | 13.32 (0.008) | ||||
| Pan y magnitude | 13.50 (0.002) | ||||
| E(B-V) | 0.014 | ||||
* 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.