All names: TIC 198237310, Gaia DR2 1625473185405896576, SDSS J163544.75+620156.3, GALEX J163544.8+620156, SDSS J163544.74+620156.3, [SGR2010] J1635+6201, WIRED J163544.74+620156.3, SDSS J163544.77+620156.6, 2MASS J16354474+6201566, Gaia EDR3 1625473189701689472, WD 1635+621
| 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) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 35 44.76 (0.2) | 16 35 44.75 | 16 35 44.76 (0.4) | 16 35 44.75 | 16 35 44.77 (0.4) | 16 35 44.18 | 16 35 44.75 | |||
| Declination | 62 01 56.10 (0.2) | 62 01 56.35 | 62 01 56.11 (0.4) | 62 01 56.35 | 62 01 56.27 (0.4) | 62 01 52.68 | 62 01 56.34 | |||
| Spectral type | DA+M | DA+M4 | DA2.8+M4 | DA+M | ||||||
| Effective temperature | [K] | 17505.0 (274) | 8060.0 (32) | |||||||
| log(g) | [cgs] | 7.81 (0.06) | 5.45 (0.07) | |||||||
| Mass | [M☉] | 0.52 (0.03) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 2.64 (0.2) | 2.67 (0.4) | 2.67 (0.4) | ||||||
| Distance | [pc] | 378.49 (31) | 375.01 (51) | 378.00 (15) | 375.01 (51) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 1.377313648 (0.3) | -2.477219745 (0.8) | -2.477 (0.8) | ||||||
| Proper motion (declination) | [mas/yr] | -7.681665287 (0.3) | -10.32682759 (0.9) | -10.327 (0.9) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | yes | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 15.45 (0.06) | |||||||||
| H magnitude | 14.94 (0.09) | |||||||||
| K magnitude | 14.74 (0.1) | |||||||||
| u magnitude | 18.59 (0.02) | 18.62 | 18.62 (0.02) | 18.59 | 18.62 (0.02) | |||||
| g magnitude | 18.30 (0.007) | 18.34 | 18.34 (0.02) | 18.30 | 18.34 (0.02) | |||||
| r magnitude | 18.20 (0.007) | 18.24 | 18.24 (0.02) | 18.20 | 18.24 (0.02) | |||||
| i magnitude | 17.45 (0.006) | 17.51 | 17.51 (0.02) | 17.45 | 17.51 (0.02) | |||||
| z magnitude | 16.88 (0.01) | 16.95 | 16.95 (0.02) | 16.89 | 16.96 (0.02) | |||||
| G magnitude | 18.35 (0.01) | 18.26 | 18.26 (0.008) | |||||||
| BP magnitude | 18.32 (0.01) | 18.24 | ||||||||
| RP magnitude | 17.02 (0.009) | 17.03 | ||||||||
| Pan g magnitude | 18.35 (0.007) | |||||||||
| Pan r magnitude | 18.28 (0.008) | |||||||||
| Pan i magnitude | 17.54 (0.008) | |||||||||
| Pan z magnitude | 17.02 (0.008) | |||||||||
| Pan y magnitude | 16.76 (0.009) | |||||||||
| 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.