All names: GALEX J045515.2+130530, USNO-B1.0 1030-00063811, V* V1835 Ori, RAT J0455+1305, SDSS J045515.23+130529.7, TIC 673345538, Gaia DR3 3296244226946647168, RAT J045515.22+130529.8, LAMOST J045515.24+130529.6, Gaia DR2 3296244226946647168, RATJ0455+1305
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 04 55 15.22 | 04 55 15.23 (0.08) | ||
| Declination | 13 05 29.80 | 13 05 29.69 (0.03) | ||
| Spectral type | sdBV | sdB | ||
| Effective temperature | [K] | 29200.0 | ||
| log(g) | [cgs] | 5.20 | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.32 (0.1) | 0.40 (0.08) | |
| Distance | [pc] | 3102.70 (1161) | 2495.63 (526) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.296 (0.2) | -0.049 (0.1) | |
| Proper motion (declination) | [mas/yr] | -3.556 (0.1) | -3.554 (0.07) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 17.60 | |||
| V magnitude | ||||
| R magnitude | 17.30 | |||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | 17.42 (0.01) | 17.42 (0.01) | ||
| g magnitude | 17.20 (0.005) | 17.20 (0.005) | ||
| r magnitude | 17.24 (0.005) | 17.24 (0.005) | ||
| i magnitude | 17.32 (0.007) | 17.32 (0.006) | ||
| z magnitude | 17.44 (0.01) | 17.43 (0.01) | ||
| G magnitude | 17.18 (0.002) | 17.15 (0.003) | ||
| BP magnitude | 17.22 (0.007) | |||
| RP magnitude | 17.02 (0.007) | |||
| Pan g magnitude | 17.22 (0.02) | |||
| Pan r magnitude | 17.27 (0.007) | |||
| Pan i magnitude | 17.34 (0.007) | |||
| Pan z magnitude | 17.48 (0.03) | |||
| Pan y magnitude | 17.53 (0.01) | |||
| E(B-V) | 0.268 | |||
* 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.