All names: UBV M 43106, PG 0944+275, Gaia EDR3 647193232966817280, SDSS J094729.36+271627.0, LAMOST J094729.36+271627.0, Gaia DR3 647193232966817280, Ton 24, LAMOST J094729.40+271627.0, GEN# +6.10070024, USNO-B1.0 1172-00215812, PG0944+275, Gaia DR2 647193232966817280, SDSS J094729.36+271626.9, GALEX J094729.3+271627
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 09 47 29.36 (0.06) | 09 47 29.34 | 09 47 29.35 (0.06) | ||
| Declination | 27 16 26.94 (0.05) | 27 16 27.98 | 27 16 27.14 (0.05) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 28320.0 (1720) | |||
| log(g) | [cgs] | 5.89 (0.2) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.46 (0.07) | 0.64 (0.1) | 0.46 (0.07) | |
| Distance | [pc] | 2196.84 (335) | 1555.69 (287) | 2196.84 (335) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 1.484 (0.08) | 1.739 (0.2) | 1.484 (0.08) | |
| Proper motion (declination) | [mas/yr] | -12.488 (0.06) | -12.79 (0.1) | -12.488 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.60 | ||||
| V magnitude | 16.71 | ||||
| R magnitude | 16.60 | ||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | 16.16 (0.006) | 16.16 (0.006) | |||
| g magnitude | 16.34 (0.004) | 16.34 (0.004) | |||
| r magnitude | 16.85 (0.005) | 16.85 (0.005) | |||
| i magnitude | 17.18 (0.006) | 17.18 (0.006) | |||
| z magnitude | 17.36 (0.01) | 17.36 (0.01) | |||
| G magnitude | 16.60 (0.003) | 16.63 (0.002) | 16.60 (0.003) | ||
| BP magnitude | 16.47 (0.004) | 16.42 (0.007) | |||
| RP magnitude | 16.86 (0.008) | 16.87 (0.005) | |||
| Pan g magnitude | 16.44 (0.004) | ||||
| Pan r magnitude | 16.85 (0.004) | ||||
| Pan i magnitude | 17.19 (0.003) | ||||
| Pan z magnitude | 17.46 (0.005) | ||||
| Pan y magnitude | 17.64 (0.01) | ||||
| E(B-V) | 0.021 | ||||
* 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.