All names: Gaia DR2 1564784232360838400, GALEX J130830.3+560536, SDSS J130830.31+560536.2, USNO-B1.0 1460-00234771, SBSS 1306+563, TIC 459215461, 2MASS J13083032+5605361, Gaia DR3 1564784232360838400, SBSS1306+563
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 13 08 30.25 | 13 08 30.32 (0.05) | ||
| Declination | 56 05 37.39 | 56 05 36.22 (0.04) | ||
| 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] | 0.07 (0.07) | 0.10 (0.06) | |
| Distance | [pc] | 14577.26 (15746) | 10471.20 (6743) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.793 (0.1) | -0.774 (0.06) | |
| Proper motion (declination) | [mas/yr] | 0.337 (0.09) | 0.412 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 17.30 | |||
| V magnitude | ||||
| R magnitude | 17.20 | |||
| I magnitude | ||||
| J magnitude | 16.43 (0.1) | 16.43 (0.1) | ||
| H magnitude | 15.62 | |||
| K magnitude | 16.04 (0.3) | 16.04 (0.3) | ||
| u magnitude | 18.32 (0.01) | 18.33 (0.02) | ||
| g magnitude | 17.15 (0.005) | 17.14 (0.005) | ||
| r magnitude | 17.16 (0.005) | 17.16 (0.005) | ||
| i magnitude | 17.23 (0.006) | 17.23 (0.006) | ||
| z magnitude | 17.35 (0.01) | 17.34 (0.01) | ||
| G magnitude | 17.13 (0.001) | 17.11 (0.003) | ||
| BP magnitude | 17.23 (0.006) | |||
| RP magnitude | 16.92 (0.008) | |||
| Pan g magnitude | 17.17 (0.005) | |||
| Pan r magnitude | 17.16 (0.004) | |||
| Pan i magnitude | 17.25 (0.003) | |||
| Pan z magnitude | 17.34 (0.004) | |||
| Pan y magnitude | 17.37 (0.02) | |||
| 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.