All names: GALEX J172851.6+330504, SDSS J172851.64+330503.9, Gaia DR3 4601948124978027776, Gaia EDR3 4601948124978027776, Gaia DR2 4601948124978027776
| Parameter | Unit | Gaia EDR3 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 28 51.64 (0.2) | 17 28 51.65 (0.2) | ||
| Declination | 33 05 03.99 (0.3) | 33 05 03.84 (0.3) | ||
| 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] | 0.64 (0.3) | 0.64 (0.3) | |
| Distance | [pc] | 1551.59 (731) | 1551.59 (731) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -6.469 (0.3) | -6.469 (0.3) | |
| Proper motion (declination) | [mas/yr] | 9.555 (0.3) | 9.555 (0.3) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | 19.76 (0.04) | |||
| g magnitude | 19.81 (0.02) | |||
| r magnitude | 19.98 (0.02) | |||
| i magnitude | 20.21 (0.03) | |||
| z magnitude | 20.48 (0.1) | |||
| G magnitude | 19.81 (0.004) | 19.81 (0.005) | ||
| BP magnitude | 19.73 (0.05) | |||
| RP magnitude | 19.80 (0.07) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| 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.