All names: UCAC2 41902010, [TFW97] J172411.97+283526.93, PG1722+286, Gaia DR2 4598511330803479936, GSC 02086-01738, PG 1722+286, GALEX J172412.0+283528, Gaia DR3 4598511330803479936, UCAC3 238-126105, TIC 423026102, 2MASS J17241195+2835268, TYC 2086-1738-1, LAMOST J172412.02+283528.3, Gaia EDR3 4598511330803479936
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Guo et al. 2015 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 17 24 11.95 (0.02) | 17 24 11.96 | 17 24 11.96 (0.02) | |||
| Declination | 28 35 27.05 (0.02) | 28 35 26.90 | 28 35 26.86 (0.02) | |||
| Spectral type | sdB | sdB | sdB0VIIpHe10 | |||
| Effective temperature | [K] | 35800.0 (900) | ||||
| log(g) | [cgs] | 5.94 (0.1) | ||||
| Mass | [M☉] | |||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 2.08 (0.03) | 2.10 (0.04) | 2.08 (0.03) | ||
| Distance | [pc] | 481.51 (6) | 475.67 (9) | 481.51 (6) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -8.754 (0.02) | -8.801 (0.06) | -8.754 (0.02) | ||
| Proper motion (declination) | [mas/yr] | 11.758 (0.03) | 11.701 (0.07) | 11.758 (0.03) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 13.20 (0.3) | |||||
| V magnitude | 13.19 (0.3) | |||||
| R magnitude | 13.92 (0.07) | |||||
| I magnitude | ||||||
| J magnitude | 14.00 (0.03) | 14.00 (0.03) | ||||
| H magnitude | 14.15 (0.05) | 14.15 (0.05) | ||||
| K magnitude | 14.19 (0.07) | 14.19 (0.07) | ||||
| u magnitude | 13.28 (0.002) | |||||
| g magnitude | 13.48 (0.002) | |||||
| r magnitude | 13.67 (0.002) | |||||
| i magnitude | 15.16 (0.009) | |||||
| z magnitude | 14.58 (0.007) | |||||
| G magnitude | 13.33 (0.003) | 13.34 (0.0005) | 13.33 (0.003) | |||
| BP magnitude | 13.17 (0.003) | 13.11 (0.005) | ||||
| RP magnitude | 13.63 (0.004) | 13.62 (0.002) | ||||
| Pan g magnitude | 13.21 | |||||
| Pan r magnitude | 14.77 | |||||
| Pan i magnitude | 13.96 (0.002) | |||||
| Pan z magnitude | 14.24 (0.003) | |||||
| Pan y magnitude | 14.44 (0.002) | |||||
| E(B-V) | 0.028 | |||||
* 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.