All names: 2MASS J08503937+2745368, Gaia EDR3 704851347851419264, Gaia DR2 704851347851419264, SDSS J085039.35+274536.5, TIC 117415044, Gaia DR3 704851347851419264
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Sayres et al. 2012 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 08 50 39.35 (0.07) | 08 50 39.35 (0.1) | 08 50 39.38 | 08 50 39.36 (0.07) | ||
| Declination | 27 45 35.93 (0.05) | 27 45 35.95 (0.08) | 27 45 36.60 | 27 45 36.70 (0.05) | ||
| Spectral type | sd | 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] | 0.67 (0.08) | 0.35 (0.1) | 0.67 (0.08) | ||
| Distance | [pc] | 1497.79 (186) | 2865.33 (1035) | 1497.68 (186) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -8.229711806 (0.09) | -8.867 (0.2) | -8.23 (0.09) | ||
| Proper motion (declination) | [mas/yr] | -48.21252483 (0.07) | -47.321 (0.2) | -48.213 (0.07) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | 14.86 (0.004) | 14.82 (0.04) | ||||
| H magnitude | 14.53 (0.05) | 14.53 (0.05) | ||||
| K magnitude | 14.41 (0.08) | 14.41 (0.08) | ||||
| u magnitude | 15.74 (0.005) | 17.28 (0.009) | ||||
| g magnitude | 14.73 (0.003) | 16.29 (0.004) | ||||
| r magnitude | (0.004) | 15.91 (0.004) | ||||
| i magnitude | 14.37 (0.004) | 15.75 (0.004) | ||||
| z magnitude | 14.38 (0.004) | 15.69 (0.006) | ||||
| G magnitude | 15.93 (0.002) | 15.93 | 15.93 (0.003) | |||
| BP magnitude | 16.22 (0.002) | 16.24 | ||||
| RP magnitude | 15.42 (0.002) | 15.43 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.025 | |||||
* 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.