All names: Gaia DR2 79376016447500416, PG 0217+155, GALEX J022035.5+154407, TIC 408624022, 2MASS J02203560+1544066, PG0217+155, Gaia DR3 79376016447500416
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 02 20 35.53 | 02 20 35.60 (0.04) | ||
| Declination | 15 44 07.55 | 15 44 06.92 (0.04) | ||
| Spectral type | sdOB | sdOB | ||
| 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] | 0.39 (0.06) | 0.62 (0.04) | |
| Distance | [pc] | 2564.76 (424) | 1621.53 (111) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 7.288 (0.2) | 7.462 (0.06) | |
| Proper motion (declination) | [mas/yr] | -2.991 (0.1) | -2.842 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.08 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.61 (0.07) | 15.61 (0.07) | ||
| H magnitude | 15.66 (0.1) | 15.66 (0.1) | ||
| K magnitude | 14.79 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.05 (0.0009) | 15.04 (0.003) | ||
| BP magnitude | 14.90 (0.009) | |||
| RP magnitude | 15.21 (0.003) | |||
| Pan g magnitude | 14.91 (0.01) | |||
| Pan r magnitude | 15.25 (0.004) | |||
| Pan i magnitude | 15.55 (0.002) | |||
| Pan z magnitude | 15.77 (0.004) | |||
| Pan y magnitude | 15.95 (0.005) | |||
| E(B-V) | 0.091 | |||
* 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.