All names: GALEX J034846.3+820234, WISEA J034847.06+820234.9, Gaia DR2 569988137807051136, WISE J034847.11+820234.6, GALEXJ03487+8202, Gaia DR3 569988137807051136, 2MASS J03484716+8202347, UCAC4 861-002793, TIC 260367259
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 03 48 46.38 | 03 48 47.17 (0.02) | ||
| Declination | 82 02 34.53 | 82 02 34.74 (0.02) | ||
| Spectral type | He-sdO | sdOHe | ||
| Effective temperature | [K] | 44000.0 | ||
| log(g) | [cgs] | 6.40 | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.82 (0.04) | 0.79 (0.03) | |
| Distance | [pc] | 1224.14 (58) | 1267.27 (43) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 4.629 (0.06) | 4.723 (0.03) | |
| Proper motion (declination) | [mas/yr] | 2.495 (0.07) | 2.339 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.27 (0.1) | |||
| V magnitude | 14.40 (0.03) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.79 (0.04) | 14.79 (0.04) | ||
| H magnitude | 14.85 (0.09) | 14.85 (0.09) | ||
| K magnitude | 14.92 (0.1) | 14.92 (0.1) | ||
| u magnitude | 14.05 (0.003) | |||
| g magnitude | 14.26 (0.003) | 14.27 (0.03) | ||
| r magnitude | 14.58 (0.003) | 14.59 (0.06) | ||
| i magnitude | 14.84 (0.003) | |||
| z magnitude | 15.08 (0.005) | |||
| G magnitude | 14.41 (0.0006) | 14.39 (0.003) | ||
| BP magnitude | 14.25 (0.007) | |||
| RP magnitude | 14.54 (0.002) | |||
| Pan g magnitude | ||||
| Pan r magnitude | 19.78 (0) | |||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.103 | |||
* 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.