All names: Gaia DR3 4348166620654369536, PG1553-077, Gaia DR2 4348166620654369536, GALEX J155602.9-074828, PG 1553-077, TIC 54903888, UCAC4 411-062326, UCAC2 29113222, 2MASS J15560284-0748283
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 56 02.84 | 15 56 02.85 (0.04) | ||
| Declination | -07 48 27.56 | -07 48 28.26 (0.02) | ||
| Spectral type | sdOB | sdOC7VIIeHe40 | ||
| 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] | 0.35 (0.07) | 0.60 (0.04) | |
| Distance | [pc] | 2880.18 (563) | 1679.83 (116) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 0.925 (0.1) | 0.657 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.661 (0.08) | -3.724 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.81 (0.03) | |||
| V magnitude | 14.93 (0.01) | |||
| R magnitude | 15.27 (0.06) | |||
| I magnitude | ||||
| J magnitude | 15.20 (0.04) | 15.20 (0.04) | ||
| H magnitude | 15.40 (0.1) | 15.40 (0.1) | ||
| K magnitude | 15.36 (0.2) | 15.36 (0.2) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.89 (0.0008) | 14.87 (0.003) | ||
| BP magnitude | 14.73 (0.006) | |||
| RP magnitude | 15.03 (0.003) | |||
| Pan g magnitude | 14.77 (0.004) | |||
| Pan r magnitude | 15.08 (0.002) | |||
| Pan i magnitude | 15.37 (0.003) | |||
| Pan z magnitude | 15.59 (0.003) | |||
| Pan y magnitude | 15.74 (0.006) | |||
| E(B-V) | 0.166 | |||
* 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.