All names: BPSCS30493-9, 2MASS J23040132-3547173, BPS CS 30493-0009, GALEX J230401.2-354716, Gaia DR3 6553298895949005184, TIC 154843001, Gaia DR2 6553298895949005184
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 04 01.31 | 23 04 01.33 (0.03) | ||
| Declination | -35 47 17.50 | -35 47 17.48 (0.03) | ||
| Spectral type | sdB | sdB | ||
| 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] | 0.03 (0.06) | 0.06 (0.04) | |
| Distance | [pc] | 29585.80 (51206) | 17667.84 (11081) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.424 (0.1) | -0.422 (0.03) | |
| Proper motion (declination) | [mas/yr] | -2.708 (0.1) | -2.819 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | 14.90 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.25 (0.06) | 15.25 (0.06) | ||
| H magnitude | 15.37 (0.1) | 15.37 (0.1) | ||
| K magnitude | 15.42 (0.2) | 15.42 (0.2) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.99 (0.0008) | 14.96 (0.003) | ||
| BP magnitude | 14.90 (0.005) | |||
| RP magnitude | 15.08 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.010 | |||
* 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.