All names: HE 0007-2212, Gaia DR3 2340386610838189952, UCAC2 23039980, MCT 0007-2212, PHL 699, TIC 114849861, Gaia DR2 2340386610838189952, 2MASS J00094591-2156136, BPS CS 30324-0029, Gaia EDR3 2340386610838189952, MCT0007-2212, GSC 05844-00400, GSC2 S0032003132
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 00 09 45.91 (0.05) | 00 09 45.91 | 00 09 45.91 (0.05) | ||
| Declination | -21 56 13.58 (0.03) | -21 56 14.39 | -21 56 13.70 (0.03) | ||
| Spectral type | sdB | sdBHe0 | |||
| Effective temperature | [K] | 28964.0 (500) | |||
| log(g) | [cgs] | 5.68 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.84 (0.06) | 0.77 (0.08) | 0.84 (0.06) | |
| Distance | [pc] | 1187.79 (81) | 1295.00 (139) | 1187.79 (81) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -0.021 (0.05) | 0.151 (0.1) | -0.021 (0.05) | |
| Proper motion (declination) | [mas/yr] | 7.888 (0.04) | 7.962 (0.09) | 7.888 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.84 | ||||
| V magnitude | 15.10 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.75 (0.06) | 15.75 (0.06) | |||
| H magnitude | 15.82 (0.1) | 15.82 (0.1) | |||
| K magnitude | 15.50 (0.2) | 15.50 (0.2) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 15.01 (0.003) | 15.02 (0.0007) | 15.01 (0.003) | ||
| BP magnitude | 14.87 (0.004) | 14.80 (0.006) | |||
| RP magnitude | 15.29 (0.005) | 15.29 (0.003) | |||
| Pan g magnitude | 14.86 (0.004) | ||||
| Pan r magnitude | 15.24 (0.002) | ||||
| Pan i magnitude | 15.62 (0.01) | ||||
| Pan z magnitude | 15.90 (0.0007) | ||||
| Pan y magnitude | 16.08 (0.008) | ||||
| E(B-V) | 0.009 | ||||
* 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.