All names: LAMOST J002527.75+085754.3, TIC 468346872, UCAC2 34765723, UCAC4 495-000643, GALEX J002527.6+085754, uvby98 680002252, Gaia DR3 2750667003920099200, PG 0022+087, SDSS J002527.75+085754.2, Gaia DR2 2750667003920099200, PG0022+087, PB 5943, 2MASS J00252775+0857543
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 00 25 27.73 | 00 25 27.75 (0.04) | ||
| Declination | 08 57 55.46 | 08 57 54.40 (0.03) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 30495.0 (194) | ||
| log(g) | [cgs] | 5.63 (0.04) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.56 (0.09) | 0.57 (0.05) | |
| Distance | [pc] | 1801.80 (280) | 1763.67 (169) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 7.635 (0.2) | 7.879 (0.06) | |
| Proper motion (declination) | [mas/yr] | -15.563 (0.09) | -15.545 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.55 (0.07) | |||
| V magnitude | 15.60 (0.08) | |||
| R magnitude | 15.85 (0.2) | |||
| I magnitude | ||||
| J magnitude | 16.15 (0.1) | 16.15 (0.1) | ||
| H magnitude | 15.93 | |||
| K magnitude | 16.40 | |||
| u magnitude | 15.26 (0.004) | 15.26 (0.004) | ||
| g magnitude | 15.37 (0.004) | 15.37 (0.004) | ||
| r magnitude | 15.79 (0.004) | 15.79 (0.004) | ||
| i magnitude | 16.09 (0.005) | 16.09 (0.005) | ||
| z magnitude | 16.34 (0.008) | 16.34 (0.008) | ||
| G magnitude | 15.60 (0.0007) | 15.58 (0.003) | ||
| BP magnitude | 15.43 (0.006) | |||
| RP magnitude | 15.79 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | 18.27 (0.008) | |||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.031 | |||
* 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.