All names: TIC 437051820, PG 0856+121, [TFW97] J085902.66+115627.84, SDSS J085902.63+115627.7, V* HK Cnc, 2MASS J08590264+1156278, LAMOST J085902.67+115628.0, GSC 00814-00689, Gaia DR2 604794342318395520, PG0856+121, Gaia EDR3 604794342318395520, LAMOST J085902.64+115627.7, Gaia DR3 604794342318395520
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 08 59 02.61 (0.03) | 08 59 02.71 | 08 59 02.64 (0.03) | ||
| Declination | 11 56 27.68 (0.02) | 11 56 24.69 | 11 56 27.84 (0.02) | ||
| Spectral type | sdB | sdB3VIIHe0 | |||
| Effective temperature | [K] | 25010.0 (1040) | |||
| log(g) | [cgs] | 5.53 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.83 (0.03) | 1.66 (0.05) | 1.83 (0.03) | |
| Distance | [pc] | 545.52 (10) | 600.64 (18) | 545.52 (10) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -32.081 (0.04) | -32.273 (0.08) | -32.081 (0.04) | |
| Proper motion (declination) | [mas/yr] | -9.803 (0.03) | -9.729 (0.06) | -9.803 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.47 | ||||
| V magnitude | 13.48 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 13.95 (0.03) | 13.95 (0.03) | |||
| H magnitude | 14.05 (0.06) | 14.05 (0.06) | |||
| K magnitude | 14.20 (0.07) | 14.20 (0.07) | |||
| u magnitude | 13.13 (0.003) | 13.13 (0.003) | |||
| g magnitude | 13.64 (0.006) | 13.64 (0.006) | |||
| r magnitude | 13.69 (0.008) | 13.69 (0.008) | |||
| i magnitude | 13.99 (0.003) | 13.99 (0.003) | |||
| z magnitude | 14.29 (0.004) | 14.29 (0.004) | |||
| G magnitude | 13.45 (0.003) | 13.47 (0.0005) | 13.45 (0.003) | ||
| BP magnitude | 13.33 (0.003) | 13.28 (0.006) | |||
| RP magnitude | 13.70 (0.004) | 13.70 (0.001) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | 19.61 (0.06) | ||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.029 | ||||
* 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.