All names: 2MASS J08174109+4309048, Gaia EDR3 927922221102586240, Gaia DR3 927922122319393408, TIC 22684544, Gaia DR2 927922122319393408, FBS B 250, FBS 0814+433
| Parameter | Unit | Gaia EDR3 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 08 17 39.79 (0.3) | 08 17 41.09 (0.02) | ||
| Declination | 43 09 38.22 (0.3) | 43 09 04.73 (0.02) | ||
| Spectral type | DA | |||
| 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] | 2.35 (0.4) | 0.24 (0.03) | |
| Distance | [pc] | 424.74 (69) | 4182.35 (493) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 4.913 (0.4) | 1.009 (0.03) | |
| Proper motion (declination) | [mas/yr] | 1.305 (0.3) | -3.27 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.04 | |||
| V magnitude | 14.86 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.58 (0.03) | |||
| H magnitude | 14.54 (0.06) | |||
| K magnitude | 14.52 (0.08) | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 19.37 (0.006) | 14.79 (0.003) | ||
| BP magnitude | 19.35 (0.04) | |||
| RP magnitude | 19.39 (0.08) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.036 | |||
* 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.