All names: SDSS J084611.98+242510.6, TIC 117354072, 2MASS J08461199+2425108, Gaia EDR3 690346315579638656, Ton 346, UCAC4 573-045194, GALEX J084611.9+242512, PG 0843+246, Gaia DR3 690346315579638656, PG0843+246, Gaia DR2 690346315579638656
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 08 46 11.99 (0.05) | 08 46 11.95 | 08 46 11.99 (0.05) | ||
| Declination | 24 25 10.59 (0.02) | 24 25 10.30 | 24 25 10.62 (0.02) | ||
| Spectral type | sdOB | 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] | 0.55 (0.06) | 0.45 (0.08) | 0.55 (0.06) | |
| Distance | [pc] | 1832.84 (193) | 2235.64 (411) | 1832.84 (193) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -0.514 (0.06) | -0.871 (0.1) | -0.514 (0.06) | |
| Proper motion (declination) | [mas/yr] | -1.866 (0.04) | -1.766 (0.09) | -1.866 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.44 (0.07) | ||||
| V magnitude | 15.61 (0.06) | ||||
| R magnitude | 15.90 (0.3) | ||||
| I magnitude | |||||
| J magnitude | 16.16 (0.08) | 16.16 (0.08) | |||
| H magnitude | 16.14 (0.2) | 16.14 (0.2) | |||
| K magnitude | 16.07 | ||||
| u magnitude | 15.18 (0.004) | 15.15 (0.01) | |||
| g magnitude | 15.32 (0.003) | 15.40 (0.02) | |||
| r magnitude | 15.80 (0.003) | 15.77 (0.09) | |||
| i magnitude | 16.14 (0.004) | 16.45 (0.01) | |||
| z magnitude | 16.44 (0.008) | 16.45 (0.02) | |||
| G magnitude | 15.58 (0.003) | 15.60 (0.0006) | 15.58 (0.003) | ||
| BP magnitude | 15.45 (0.004) | 15.40 (0.006) | |||
| RP magnitude | 15.84 (0.005) | 15.84 (0.003) | |||
| Pan g magnitude | 15.43 (0.004) | ||||
| Pan r magnitude | 15.83 (0.002) | ||||
| Pan i magnitude | 16.17 (0.005) | ||||
| Pan z magnitude | 16.43 (0.003) | ||||
| Pan y magnitude | 16.61 (0.01) | ||||
| E(B-V) | 0.027 | ||||
* 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.