All names: Gaia DR2 2772359715502793088, PG 2354+157, USNO-B1.0 1059-00646364, SDSS J235712.56+155600.4, UCAC4 530-152054, UCAC2 37471848, SDSSJ235712.56+155600.4, 2MASS J23571255+1556003, GALEX J235712.6+155601, TIC 411514560, Gaia DR3 2772359715502793088
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 57 12.57 | 23 57 12.56 (0.03) | ||
| Declination | 15 56 00.45 | 15 56 00.45 (0.03) | ||
| Spectral type | sd | B | ||
| 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] | 0.65 (0.06) | 0.54 (0.05) | |
| Distance | [pc] | 1545.36 (154) | 1851.85 (159) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.37 (0.1) | 3.536 (0.05) | |
| Proper motion (declination) | [mas/yr] | -3.568 (0.05) | -3.611 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.60 | |||
| V magnitude | ||||
| R magnitude | 15.61 (0.1) | |||
| I magnitude | ||||
| J magnitude | 15.77 (0.08) | 15.77 (0.08) | ||
| H magnitude | 15.92 (0.2) | 15.92 (0.2) | ||
| K magnitude | 15.74 (0.3) | 15.74 (0.3) | ||
| u magnitude | 14.91 (0.004) | 14.91 (0.01) | ||
| g magnitude | 15.02 (0.003) | 15.07 (0.02) | ||
| r magnitude | 15.48 (0.004) | 15.48 (0.01) | ||
| i magnitude | 15.79 (0.004) | 15.80 (0.01) | ||
| z magnitude | 16.09 (0.007) | 16.05 (0.02) | ||
| G magnitude | 15.28 (0.0007) | 15.26 (0.003) | ||
| BP magnitude | 15.10 (0.004) | |||
| RP magnitude | 15.50 (0.002) | |||
| Pan g magnitude | 15.09 (0.01) | |||
| Pan r magnitude | 15.50 (0.004) | |||
| Pan i magnitude | 15.82 (0.006) | |||
| Pan z magnitude | 16.08 (0.003) | |||
| Pan y magnitude | 16.26 (0.007) | |||
| E(B-V) | 0.046 | |||
* 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.