All names: SDSS J163725.76+251027.3, 2MASS J16372576+2510274, WD 1635+252, SDSS J163725.76+251027.4, Gaia DR3 1300876088505156096, [HHD2009] SDSS J1637+2510, TIC 458515784, Gaia EDR3 1300876088505156096, WIRED J163725.76+251027.3, Gaia DR2 1300876088505156096
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 37 25.79 (0.1) | 16 37 25.77 | 16 37 25.79 (0.2) | 16 37 25.76 | 16 37 25.77 (0.1) | 16 37 25.76 | 16 37 25.37 | 16 37 25.76 | |||
| Declination | 25 10 27.18 (0.2) | 25 10 27.36 | 25 10 27.19 (0.3) | 25 10 27.30 | 25 10 27.41 (0.2) | 25 10 27.40 | 25 10 26.40 | 25 10 27.40 | |||
| Spectral type | DA+M | DA+dMe | DA+M | DA dM | DA+M | ||||||
| Effective temperature | [K] | 16717.0 (3541) | 6300.0 (1) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 8.15 (0.5) | 8.66 (0.1) | 10.00 (0.003) | |||||||
| Mass | [M☉] | 0.71 (0.3) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 2.41 (0.2) | 2.06 (0.3) | 2.41 (0.2) | |||||||
| Distance | [pc] | 414.36 (41) | 486.51 (82) | 698.00 (141) | 414.35 (41) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 18.58242582 (0.2) | 21.739697 (0.5) | 18.582 (0.2) | 22.2 | ||||||
| Proper motion (declination) | [mas/yr] | -14.19456587 (0.2) | -4.330385451 (0.6) | -14.195 (0.2) | -16.4 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 15.61 (0.07) | ||||||||||
| H magnitude | 14.85 (0.08) | ||||||||||
| K magnitude | 14.58 (0.09) | ||||||||||
| u magnitude | 19.62 (0.03) | 19.63 | 19.60 (0.03) | 19.63 (0.03) | 19.63 | 19.64 (0.03) | |||||
| g magnitude | 18.98 (0.009) | 19.04 | 18.99 (0.009) | 19.05 (0.02) | 19.05 | 19.05 (0.02) | |||||
| r magnitude | 18.41 (0.008) | 18.47 | 18.41 (0.008) | 18.47 (0.01) | 18.47 | 18.47 (0.01) | |||||
| i magnitude | 17.42 (0.006) | 17.43 | 17.41 (0.006) | 17.43 (0.02) | 17.43 | 17.44 (0.02) | |||||
| z magnitude | 16.78 (0.01) | 16.77 | 16.78 (0.01) | 16.77 (0.02) | 16.77 | 16.80 (0.02) | |||||
| G magnitude | 18.25 (0.02) | 18.20 | 18.25 (0.004) | ||||||||
| BP magnitude | 18.82 (0.02) | 18.85 | |||||||||
| RP magnitude | 16.99 (0.007) | 16.99 | |||||||||
| Pan g magnitude | 19.00 (0.01) | ||||||||||
| Pan r magnitude | 18.47 (0.01) | ||||||||||
| Pan i magnitude | 17.46 (0.004) | ||||||||||
| Pan z magnitude | 16.94 (0.004) | ||||||||||
| Pan y magnitude | 16.64 (0.005) | ||||||||||
| E(B-V) | 0.031 | ||||||||||
* 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.