All names: Gaia EDR3 2859001193116705920, Gaia DR3 2859002017748155776, Gaia DR2 2859002017748155776, LAMOST J002553.66+300512.2, 2MASS J00255366+3005124, PG0023+298, UCAC4 601-001204, PG 0023+298, GALEX J002553.6+300509, TIC 58105203
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 00 25 59.42 (0.9) | 00 25 53.71 | 00 25 53.67 (0.03) | ||
| Declination | 30 03 40.40 (0.5) | 30 05 13.16 | 30 05 12.38 (0.02) | ||
| Spectral type | sd | sdOBHe+K3V | |||
| 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] | 2.73 (1) | 0.60 (0.06) | 0.74 (0.03) | |
| Distance | [pc] | 365.88 (132) | 1661.13 (160) | 1348.98 (60) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 12.89 (1) | -6.318 (0.1) | -6.052 (0.04) | |
| Proper motion (declination) | [mas/yr] | -44.013 (0.7) | -13.631 (0.07) | -13.632 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.29 (0.04) | ||||
| V magnitude | 15.21 (0.05) | ||||
| R magnitude | 15.31 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 14.34 (0.03) | 14.34 (0.03) | |||
| H magnitude | 13.95 (0.04) | 13.95 (0.04) | |||
| K magnitude | 13.84 (0.04) | 13.84 (0.04) | |||
| u magnitude | 15.14 (0.004) | ||||
| g magnitude | 15.14 (0.004) | 15.17 (0.05) | |||
| r magnitude | 15.16 (0.004) | 15.19 (0.05) | |||
| i magnitude | 15.15 (0.004) | 15.23 (0.1) | |||
| z magnitude | 15.17 (0.006) | ||||
| G magnitude | 20.51 (0.008) | 15.07 (0.001) | 15.06 (0.003) | ||
| BP magnitude | 20.60 (0.2) | 15.14 (0.005) | |||
| RP magnitude | 19.49 (0.07) | 14.83 (0.004) | |||
| Pan g magnitude | 15.18 (0.002) | ||||
| Pan r magnitude | 15.18 (0.003) | ||||
| Pan i magnitude | 15.18 (0.006) | ||||
| Pan z magnitude | 15.20 (0.003) | ||||
| Pan y magnitude | 15.19 (0.004) | ||||
| E(B-V) | 0.056 | ||||
* 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.