All names: UCAC4 464-043354, SDSS J092308.30+024210.2, WISEA J092308.29+024210.5, PG0920+029, TIC 286099192, Gaia DR3 3845526597998730368, LAMOST J092308.30+024209.9, 2MASS J09230830+0242099, UCAC2 32700750, SDSS J092308.29+024210.2, WISE J092308.29+024210.4, GALEX J092308.3+024208, Gaia DR2 3845526597998730368, PG 0920+029
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 09 23 08.34 | 09 23 08.30 (0.04) | ||
| Declination | 02 42 10.15 | 02 42 10.25 (0.03) | ||
| Spectral type | sdB | sdB2VIHe3 | ||
| Effective temperature | [K] | 29100.0 (440) | ||
| log(g) | [cgs] | 5.41 (0.09) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.90 (0.07) | 0.89 (0.05) | |
| Distance | [pc] | 1113.83 (86) | 1123.97 (57) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -10.996 (0.1) | -11.262 (0.05) | |
| Proper motion (declination) | [mas/yr] | 9.531 (0.1) | 9.684 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.22 (0.03) | |||
| V magnitude | 14.35 (0.04) | |||
| R magnitude | 14.45 (0.2) | |||
| I magnitude | ||||
| J magnitude | 15.06 (0.05) | 15.06 (0.05) | ||
| H magnitude | 15.24 (0.08) | 15.24 (0.08) | ||
| K magnitude | 14.88 (0.2) | 14.88 (0.2) | ||
| u magnitude | 13.94 (0.003) | 13.94 (0.003) | ||
| g magnitude | 14.12 (0.003) | 14.12 (0.003) | ||
| r magnitude | 14.55 (0.003) | 14.55 (0.003) | ||
| i magnitude | 14.90 (0.004) | 14.90 (0.004) | ||
| z magnitude | 15.23 (0.005) | 15.23 (0.005) | ||
| G magnitude | 14.35 (0.0008) | 14.33 (0.003) | ||
| BP magnitude | 14.17 (0.008) | |||
| RP magnitude | 14.58 (0.003) | |||
| Pan g magnitude | 14.17 (0.004) | |||
| Pan r magnitude | 14.58 (0.003) | |||
| Pan i magnitude | 14.92 (0.004) | |||
| Pan z magnitude | 15.20 (0.002) | |||
| Pan y magnitude | 15.36 (0.003) | |||
| E(B-V) | 0.032 | |||
* 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.