All names: [HHD2009] SDSS J1647+3718, Gaia DR3 1351462728712433920, 2MASS J16475774+3718122, WD 1646+373, Gaia DR2 1351462728712433920, Gaia EDR3 1351462728712433920, [SGR2010] J1647+3718, SDSS J164757.73+371812.1, SDSS J164757.73+371812.0, TIC 57328853
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 47 57.73 (0.1) | 16 47 57.73 | 16 47 57.73 (0.2) | 16 47 57.73 | 16 47 57.74 (0.1) | 16 47 57.36 | |||
| Declination | 37 18 12.09 (0.2) | 37 18 12.04 | 37 18 12.09 (0.2) | 37 18 12.10 | 37 18 12.10 (0.2) | 37 18 10.44 | |||
| Spectral type | WD+M | D+M1 | WD M | ||||||
| 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] | 1.39 (0.2) | 1.37 (0.2) | 1.39 (0.2) | |||||
| Distance | [pc] | 719.30 (85) | 728.46 (117) | 262.00 (58) | 719.32 (85) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -4.836652721 (0.2) | -5.361162749 (0.4) | -4.837 (0.2) | |||||
| Proper motion (declination) | [mas/yr] | -0.803011148 (0.2) | -0.226079685 (0.6) | -0.803 (0.2) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.61 (0.05) | ||||||||
| H magnitude | 15.07 (0.07) | ||||||||
| K magnitude | 14.85 (0.1) | ||||||||
| u magnitude | 19.83 (0.04) | 19.84 | 19.83 (0.04) | 19.83 | |||||
| g magnitude | 19.03 (0.009) | 19.08 | 19.03 (0.01) | 19.07 | |||||
| r magnitude | 18.04 (0.007) | 18.07 | 18.04 (0.007) | 18.06 | |||||
| i magnitude | 17.36 (0.006) | 17.38 | 17.36 (0.006) | 17.38 | |||||
| z magnitude | 16.96 (0.01) | 16.97 | 16.96 (0.01) | 16.96 | |||||
| G magnitude | 18.04 (0.02) | 18.00 | 18.04 (0.004) | ||||||
| BP magnitude | 18.69 (0.02) | 18.69 | |||||||
| RP magnitude | 16.97 (0.007) | 17.00 | |||||||
| Pan g magnitude | 18.94 (0.01) | ||||||||
| Pan r magnitude | 18.07 (0.009) | ||||||||
| Pan i magnitude | 17.37 (0.002) | ||||||||
| Pan z magnitude | 17.05 (0.006) | ||||||||
| Pan y magnitude | 16.88 (0.01) | ||||||||
| E(B-V) | 0.021 | ||||||||
* 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.