All names: UBV 966, UBV M 43213, UBV M 43827, GEN# +6.20021410, HIC 4769, 2MASS J01011757-3342454, GEN# +6.20035043, [OMW2007] 29, Gaia DR2 5027175038609503360, SGPA 189, GSC 06999-02043, uvby98 620021410, TYC 6999-2043-1, FB 12, GALEX J010117.6-334243, SB 410, HIP 4769, Ton S 183, Gaia EDR3 5027175038609503360, TONS183, [MFW2011] 24004, TIC 66493797, UCAC4 282-001150, Gaia DR3 5027175038609503360, SBC9 3421, PS 2-43, CSI-33-00589
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 01 01 17.56 (0.04) | 01 01 17.56 | 01 01 17.57 (0.04) | ||
| Declination | -33 42 45.67 (0.02) | -33 42 45.39 | -33 42 45.43 (0.02) | ||
| Spectral type | sdB+WD | sdB | |||
| Effective temperature | [K] | 27600.0 (500) | |||
| log(g) | [cgs] | 5.43 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 2.05 (0.05) | 2.00 (0.06) | 2.05 (0.05) | |
| Distance | [pc] | 488.21 (11) | 500.18 (14) | 488.21 (11) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -6.917 (0.04) | -6.803 (0.08) | -6.917 (0.04) | |
| Proper motion (declination) | [mas/yr] | -14.456 (0.03) | -14.365 (0.07) | -14.456 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 12.39 (0.02) | ||||
| V magnitude | 14.63 (0.009) | ||||
| R magnitude | 12.95 (0.07) | ||||
| I magnitude | |||||
| J magnitude | 13.23 (0.03) | 13.23 (0.03) | |||
| H magnitude | 13.36 (0.03) | 13.36 (0.03) | |||
| K magnitude | 13.43 (0.04) | 13.43 (0.04) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 12.58 (0.003) | 12.61 (0.0002) | 12.58 (0.003) | ||
| BP magnitude | 12.45 (0.003) | 12.39 (0.004) | |||
| RP magnitude | 12.86 (0.004) | 12.86 (0.001) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.006 | ||||
* 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.