All names: EC 00008-2355, GSC 06412-00418, 2MASS J00032206-2338579, UBV M 43204, Ton S 135, FB 1, SB 8, GALEX J000321.9-233855, Gaia DR2 2339774698257101312, HE 0000-2355, SBC9 3426, Gaia DR3 2339774698257101312, CSI-23-00007, uvby98 620021008, CSI-23-00008, uvby98 610162580, PHL 2580, GEN# +6.10162580, MCT 0000-2355, Gaia EDR3 2339774698257101312, TIC 138707823, BPS CS 29503-0012, FB1, UBV 20667
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 00 03 22.08 (0.03) | 00 03 22.06 | 00 03 22.07 (0.03) | ||
| Declination | -23 38 58.32 (0.02) | -23 38 57.99 | -23 38 58.03 (0.02) | ||
| Spectral type | sdB+WD | sdBHe1 | |||
| Effective temperature | [K] | 25000.0 (1250) | |||
| log(g) | [cgs] | 5.60 (0.2) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.51 (0.04) | 1.44 (0.06) | 1.51 (0.04) | |
| Distance | [pc] | 663.09 (16) | 695.99 (28) | 663.09 (16) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 6.771 (0.04) | 6.714 (0.1) | 6.771 (0.04) | |
| Proper motion (declination) | [mas/yr] | -18.523 (0.03) | -18.625 (0.07) | -18.523 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.05 | ||||
| V magnitude | 13.30 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 13.87 (0.03) | 13.87 (0.03) | |||
| H magnitude | 14.02 (0.05) | 14.02 (0.05) | |||
| K magnitude | 14.06 (0.05) | 14.06 (0.05) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 13.25 (0.003) | 13.27 (0.0006) | 13.25 (0.003) | ||
| BP magnitude | 13.12 (0.003) | 13.08 (0.006) | |||
| RP magnitude | 13.51 (0.004) | 13.51 (0.001) | |||
| Pan g magnitude | 13.27 | ||||
| Pan r magnitude | 13.51 (0.002) | ||||
| Pan i magnitude | 13.86 (0.002) | ||||
| Pan z magnitude | 14.12 (0.004) | ||||
| Pan y magnitude | 14.29 (0.006) | ||||
| 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.