All names: KUV 23140+2751, SDSS J231628.57+280718.3, TIC 91032615, KUV23140+2751, GALEX J231628.5+280718, 2MASS J23162857+2807183, Gaia DR3 2845777233625133440, UCAC4 591-138427, Gaia DR2 2845777233625133440
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 16 28.56 | 23 16 28.57 (0.02) | ||
| Declination | 28 07 19.26 | 28 07 18.35 (0.02) | ||
| Spectral type | 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] | 0.64 (0.05) | 0.69 (0.02) | |
| Distance | [pc] | 1555.45 (109) | 1457.09 (52) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.233 (0.1) | 2.184 (0.02) | |
| Proper motion (declination) | [mas/yr] | -3.731 (0.06) | -3.766 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.98 (0.02) | |||
| V magnitude | 14.80 (0.08) | |||
| R magnitude | 14.83 (0.06) | |||
| I magnitude | ||||
| J magnitude | 14.20 (0.03) | 14.20 (0.03) | ||
| H magnitude | 13.97 (0.03) | 13.97 (0.03) | ||
| K magnitude | 13.88 (0.05) | 13.88 (0.05) | ||
| u magnitude | 15.14 (0.004) | |||
| g magnitude | 14.86 (0.004) | 14.81 (0.04) | ||
| r magnitude | 14.85 (0.003) | 14.80 (0.03) | ||
| i magnitude | 14.86 (0.004) | 14.64 (0.1) | ||
| z magnitude | 14.88 (0.005) | |||
| G magnitude | 14.76 (0.0007) | 14.74 (0.003) | ||
| BP magnitude | 14.84 (0.004) | |||
| RP magnitude | 14.52 (0.003) | |||
| Pan g magnitude | 14.85 (0.003) | |||
| Pan r magnitude | 14.84 (0.0005) | |||
| Pan i magnitude | 14.86 (0.005) | |||
| Pan z magnitude | 14.91 (0.002) | |||
| Pan y magnitude | 14.93 (0.002) | |||
| E(B-V) | 0.058 | |||
* 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.