All names: Gaia DR2 4561988406388401408, Gaia DR3 4561988406388401408, SDSS J170009.65+205637.1, GALEX J170009.6+205639
| Parameter | Unit | Stilism | Simbad |
|---|---|---|---|
| Right ascension | 17 00 09.66 (0.3) | ||
| Declination | 20 56 37.18 (0.4) | ||
| Spectral type | D+? | ||
| 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] | 1.33 (0.5) | |
| Distance | [pc] | 754.09 (288) | |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -7.681 (0.4) | |
| Proper motion (declination) | [mas/yr] | -5.395 (0.5) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | |||
| H magnitude | |||
| K magnitude | |||
| u magnitude | 21.92 (0.1) | ||
| g magnitude | 21.11 (0.03) | ||
| r magnitude | 20.20 (0.02) | ||
| i magnitude | 19.43 (0.02) | ||
| z magnitude | 18.95 (0.04) | ||
| G magnitude | 20.11 (0.006) | ||
| BP magnitude | |||
| RP magnitude | |||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | 0.044 | ||
* 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.