All names: GEN# +6.10080403, GALEX J040949.7-282001, TYC 6462-1565-1, Gaia EDR3 4888923825218566272, TONS403, EC 04078-2827, TIC 44798313, CSI-28-04078, BPS CS 22182-0008, UBV M 43226, Gaia DR3 4888923825218566272, Gaia DR2 4888923825218566272, 2MASS J04094971-2820032, uvby98 610080403, Ton S 403, UBV 4076
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 04 09 49.69 (0.03) | 04 09 49.69 | 04 09 49.70 (0.03) | ||
| Declination | -28 20 03.01 (0.03) | -28 20 03.58 | -28 20 03.17 (0.03) | ||
| Spectral type | sdO | 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] | 1.67 (0.04) | 1.62 (0.05) | 1.67 (0.04) | |
| Distance | [pc] | 598.27 (14) | 616.71 (19) | 598.27 (14) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -5.668 (0.03) | -5.808 (0.07) | -5.668 (0.03) | |
| Proper motion (declination) | [mas/yr] | 10.046 (0.04) | 10.052 (0.09) | 10.046 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 12.70 | ||||
| V magnitude | 12.98 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 13.63 (0.03) | 13.63 (0.03) | |||
| H magnitude | 13.74 (0.04) | 13.74 (0.04) | |||
| K magnitude | 13.85 (0.05) | 13.85 (0.05) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 12.89 (0.003) | 12.92 (0.0008) | 12.89 (0.003) | ||
| BP magnitude | 12.73 (0.003) | 12.68 (0.008) | |||
| RP magnitude | 13.22 (0.004) | 13.21 (0.001) | |||
| Pan g magnitude | 12.72 | ||||
| Pan r magnitude | 13.20 | ||||
| Pan i magnitude | 13.57 (0.006) | ||||
| Pan z magnitude | 13.86 (0.003) | ||||
| Pan y magnitude | 14.02 (0.004) | ||||
| E(B-V) | 0.012 | ||||
* 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.