All names: GALEX J160821.0+262352, Gaia DR2 1315490517887231360, Gaia DR3 1315490517887231360, SDSS J160820.98+262353.0, Gaia EDR3 1315490517887231360
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 08 20.97 (0.6) | 16 08 20.99 | 16 08 20.97 (1) | 16 08 20.99 | 16 08 20.99 (0.6) | |||
| Declination | 26 23 53.09 (0.8) | 26 23 53.03 | 26 23 53.08 (2) | 26 23 53.03 | 26 23 52.99 (0.8) | |||
| Spectral type | WD+MS | DA+dM | ||||||
| Effective temperature | [K] | 8875.0 (406) | ||||||
| log(g) | [cgs] | 8.16 (0.9) | ||||||
| Mass | [M☉] | 0.7 (0.5) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 1.30 (1) | 0.49 (1) | 1.30 (1) | ||||
| Distance | [pc] | 772.13 (593) | 2042.22 (5446) | 515.00 (265) | 772.14 (593) | |||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -18.59180799 (0.9) | -12.76432502 (2) | -18.592 (0.9) | ||||
| Proper motion (declination) | [mas/yr] | 5.849168484 (1) | 15.14457287 (4) | 5.849 (1) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | WDMS | |||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 21.33 (0.09) | 21.26 | 21.33 (0.09) | |||||
| g magnitude | 20.78 (0.03) | 20.81 | 20.78 (0.03) | |||||
| r magnitude | 20.80 (0.03) | 20.85 | 20.80 (0.03) | |||||
| i magnitude | 20.68 (0.04) | 20.72 | 20.68 (0.04) | |||||
| z magnitude | 20.15 (0.1) | 20.17 | 20.15 (0.1) | |||||
| G magnitude | 20.70 (0.1) | 20.76 | 20.70 (0.007) | |||||
| BP magnitude | 20.78 (0.1) | 20.71 | ||||||
| RP magnitude | 20.21 (0.1) | 20.33 | ||||||
| Pan g magnitude | 20.87 (0.03) | |||||||
| Pan r magnitude | 20.84 (0.03) | |||||||
| Pan i magnitude | 20.67 (0.02) | |||||||
| Pan z magnitude | 20.30 (0.02) | |||||||
| Pan y magnitude | 19.98 (0.06) | |||||||
| E(B-V) | 0.043 | |||||||
* 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.