All names: TIC 257132360, Gaia DR3 1955730782921780224, UCAC4 640-113862, UCAC2 45088993, WISEA J220324.53+374949.7, GALEX J220324.4+374947, 2MASS J22032452+3749496, Gaia DR2 1955730782921780224, WISE J220324.53+374949.6, GALEXJ22034+3749
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 22 03 24.47 | 22 03 24.52 (0.02) | ||
| Declination | 37 49 47.74 | 37 49 49.73 (0.03) | ||
| Spectral type | He-sdO | sdOHe | ||
| 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] | 0.44 (0.04) | 0.37 (0.03) | |
| Distance | [pc] | 2268.60 (218) | 2699.78 (236) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.18 (0.05) | -1.044 (0.03) | |
| Proper motion (declination) | [mas/yr] | 0.239 (0.08) | 0.162 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.82 (0.02) | |||
| V magnitude | 14.99 (0.04) | |||
| R magnitude | 15.40 (0.01) | |||
| I magnitude | ||||
| J magnitude | 15.34 (0.05) | 15.34 (0.05) | ||
| H magnitude | 15.60 (0.1) | 15.60 (0.1) | ||
| K magnitude | 15.28 (0.2) | 15.28 (0.2) | ||
| u magnitude | ||||
| g magnitude | 14.80 (0.02) | |||
| r magnitude | 15.20 (0.03) | |||
| i magnitude | 15.58 (0.1) | |||
| z magnitude | ||||
| G magnitude | 14.96 (0.0004) | 14.94 (0.003) | ||
| BP magnitude | 14.75 (0.005) | |||
| RP magnitude | 15.17 (0.003) | |||
| Pan g magnitude | 14.82 (0.005) | |||
| Pan r magnitude | 15.20 (0.001) | |||
| Pan i magnitude | 15.51 (0.001) | |||
| Pan z magnitude | 15.76 (0.003) | |||
| Pan y magnitude | 15.93 (0.004) | |||
| E(B-V) | 0.127 | |||
* 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.