All names: Gaia DR2 2437293614339507968, Gaia DR3 2437293614339507968, SDSS J232909.85-100606.1, GD1309, uvby98 610061309, TIC 49711130, PHL 540, GD 1309, USNO-B1.0 0798-00667403, UCAC4 400-138724, 2MASS J23290985-1006060, GALEX J232909.7-100608, UCAC2 28300903
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 29 09.83 | 23 29 09.85 (0.04) | ||
| Declination | -10 06 06.09 | -10 06 06.14 (0.04) | ||
| Spectral type | sdO | sdO7.5VIIHe40 | ||
| 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] | 0.90 (0.07) | 1.10 (0.05) | |
| Distance | [pc] | 1113.46 (81) | 913.16 (39) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 13.643 (0.1) | 13.572 (0.05) | |
| Proper motion (declination) | [mas/yr] | -10.316 (0.08) | -10.376 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.13 (0.01) | |||
| V magnitude | 13.35 (0.01) | |||
| R magnitude | 13.71 (0.07) | |||
| I magnitude | ||||
| J magnitude | 14.03 (0.03) | 14.03 (0.03) | ||
| H magnitude | 14.17 (0.05) | 14.17 (0.05) | ||
| K magnitude | 14.15 (0.06) | 14.15 (0.06) | ||
| u magnitude | 13.24 (0.003) | 12.82 (0.003) | ||
| g magnitude | 13.43 (0.004) | 13.39 (0.003) | ||
| r magnitude | 13.67 (0.006) | |||
| i magnitude | 14.21 (0.004) | 14.03 (0.003) | ||
| z magnitude | 14.25 (0.005) | 14.25 (0.004) | ||
| G magnitude | 13.32 (0.0006) | 13.31 (0.003) | ||
| BP magnitude | 13.11 (0.01) | |||
| RP magnitude | 13.62 (0.003) | |||
| Pan g magnitude | 13.39 | |||
| Pan r magnitude | 13.60 (0.002) | |||
| Pan i magnitude | 13.96 (0.004) | |||
| Pan z magnitude | 14.25 (0.002) | |||
| Pan y magnitude | 14.46 (0.004) | |||
| E(B-V) | 0.019 | |||
* 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.