All names: GALEX J155346.4-074620, 2MASS J15534645-0746213, PG 1551-076, PG1551-076, Gaia EDR3 4348178715282683264, WISEA J155346.46-074621.5, USNO-B1.0 0822-00365560, Gaia DR3 4348178715282683264, WISE J155346.45-074621.4, Gaia DR2 4348178715282683264, TIC 54787309, UCAC4 412-061543
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 15 53 46.44 (0.04) | 15 53 46.48 | 15 53 46.45 (0.04) | ||
| Declination | -07 46 21.55 (0.03) | -07 46 21.05 | -07 46 21.44 (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] | 0.95 (0.04) | 0.88 (0.07) | 0.95 (0.04) | |
| Distance | [pc] | 1055.30 (50) | 1139.47 (95) | 1055.30 (50) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -10.854 (0.05) | -10.752 (0.1) | -10.854 (0.05) | |
| Proper motion (declination) | [mas/yr] | -6.689 (0.04) | -6.695 (0.09) | -6.689 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.39 (0.03) | ||||
| V magnitude | 15.48 (0.01) | ||||
| R magnitude | 15.62 (0.3) | ||||
| I magnitude | |||||
| J magnitude | 15.81 (0.07) | 15.81 (0.07) | |||
| H magnitude | 15.99 (0.2) | 15.99 (0.2) | |||
| K magnitude | 15.73 (0.2) | 15.73 (0.2) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 15.49 (0.003) | 15.50 (0.0007) | 15.49 (0.003) | ||
| BP magnitude | 15.40 (0.004) | 15.36 (0.007) | |||
| RP magnitude | 15.64 (0.005) | 15.63 (0.004) | |||
| Pan g magnitude | 15.38 (0.003) | ||||
| Pan r magnitude | 15.69 (0.002) | ||||
| Pan i magnitude | 15.98 (0.003) | ||||
| Pan z magnitude | 16.20 (0.002) | ||||
| Pan y magnitude | 16.35 (0.005) | ||||
| E(B-V) | 0.160 | ||||
* 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.