All names: SDSSJ205829.15+240117.2, 2MASS J20582915+2401171, Gaia DR3 1839676849570436992, Gaia DR2 1839676849570436992, SDSS J205829.15+240117.2, TIC 247286357, GALEX J205829.1+240117, UCAC4 571-118262
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 58 29.15 | 20 58 29.15 (0.03) | ||
| Declination | 24 01 17.20 | 24 01 17.20 (0.02) | ||
| Spectral type | sd | sd+K | ||
| 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] | 0.94 (0.05) | 0.98 (0.04) | |
| Distance | [pc] | 1066.21 (55) | 1016.05 (39) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.341 (0.08) | -4.46 (0.04) | |
| Proper motion (declination) | [mas/yr] | -5.966 (0.06) | -6.059 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.16 (0.05) | |||
| V magnitude | 16.22 (0.01) | |||
| R magnitude | 16.14 (0.09) | |||
| I magnitude | ||||
| J magnitude | 15.68 (0.07) | 15.68 (0.07) | ||
| H magnitude | 15.55 (0.1) | 15.55 (0.1) | ||
| K magnitude | 15.32 (0.2) | 15.32 (0.2) | ||
| u magnitude | 16.32 (0.006) | 16.28 (0.006) | ||
| g magnitude | 15.93 (0.004) | 15.95 (0.004) | ||
| r magnitude | 15.95 (0.004) | 15.98 (0.004) | ||
| i magnitude | 16.06 (0.004) | 16.09 (0.004) | ||
| z magnitude | 16.16 (0.008) | 16.18 (0.008) | ||
| G magnitude | 15.92 (0.003) | 15.89 (0.003) | ||
| BP magnitude | 15.95 (0.008) | |||
| RP magnitude | 15.76 (0.007) | |||
| Pan g magnitude | 15.96 (0.004) | |||
| Pan r magnitude | 16.00 (0.01) | |||
| Pan i magnitude | 16.11 (0.01) | |||
| Pan z magnitude | 16.22 (0.007) | |||
| Pan y magnitude | 16.22 (0.01) | |||
| E(B-V) | 0.137 | |||
* 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.