All names: CSI-21-00235, BPS CS 29527-0007, TIC 62377948, Gaia DR2 2361732907536273280, uvby98 620021169, BPS CS 30324-0052, MCT 0023-2114, Gaia EDR3 2361732907536273280, Gaia DR3 2361732907536273280, MCT0023-2114, 2MASS J00255837-2057304, SB 169, SGPA 30, LB 7736, EC 00234-2114, GALEX J002558.5-205728
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 00 25 58.39 (0.04) | 00 25 58.33 | 00 25 58.37 (0.04) | ||
| Declination | -20 57 30.43 (0.03) | -20 57 30.54 | -20 57 30.35 (0.03) | ||
| Spectral type | sdO | sdO8He1 | |||
| Effective temperature | [K] | ||||
| log(g) | [cgs] | ||||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.18 (0.05) | 1.27 (0.06) | 1.18 (0.05) | |
| Distance | [pc] | 844.81 (36) | 788.33 (36) | 844.81 (36) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 20.789 (0.05) | 20.783 (0.1) | 20.789 (0.05) | |
| Proper motion (declination) | [mas/yr] | -5.279 (0.04) | -5.376 (0.08) | -5.279 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.72 | ||||
| V magnitude | 13.98 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 14.25 (0.04) | 14.25 (0.04) | |||
| H magnitude | 14.03 (0.04) | 14.03 (0.04) | |||
| K magnitude | 14.09 (0.07) | 14.09 (0.07) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 13.91 (0.003) | 13.92 (0.0006) | 13.91 (0.003) | ||
| BP magnitude | 13.77 (0.003) | 13.71 (0.006) | |||
| RP magnitude | 14.15 (0.004) | 14.15 (0.002) | |||
| Pan g magnitude | 13.79 (0.007) | ||||
| Pan r magnitude | 14.18 (0.004) | ||||
| Pan i magnitude | 14.50 (0.005) | ||||
| Pan z magnitude | 14.71 (0.003) | ||||
| Pan y magnitude | 14.83 (0.006) | ||||
| E(B-V) | 0.008 | ||||
* 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.