All names: WISEA J133907.53+673334.2, 2MASS J13390756+6733340, SDSS J133907.56+673334.0, Gaia DR2 1672501535404155904, USNO-B1.0 1575-00172012, SDSS J133907.57+673334.3, WISE J133907.55+673334.2, [SGR2010] J1339+6733, Gaia DR3 1672501535404155904, Gaia EDR3 1672501535404155904, WD 1337+678, TIC 153991454, SDSS J133907.55+673333.9, UCAC4 788-023407, GALEX J133907.4+673334
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 13 39 07.52 (0.05) | 13 39 07.52 (0.07) | 13 39 07.57 (0.05) | 13 39 07.01 | |||
| Declination | 67 33 34.25 (0.05) | 67 33 34.25 (0.05) | 67 33 34.05 (0.05) | 67 33 30.96 | |||
| Spectral type | D+M0 | WD+M0 | |||||
| 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] | 1.74 (0.06) | 1.55 (0.07) | 1.75 (0.06) | |||
| Distance | [pc] | 573.07 (19) | 645.17 (29) | 573.07 (19) | |||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -15.94474371 (0.07) | -16.28949167 (0.1) | -15.945 (0.07) | |||
| Proper motion (declination) | [mas/yr] | 12.52293206 (0.06) | 13.17240805 (0.09) | 12.523 (0.06) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | yes | ||||||
| B magnitude | 17.20 | ||||||
| V magnitude | |||||||
| R magnitude | 15.60 | ||||||
| I magnitude | |||||||
| J magnitude | 14.21 (0.03) | ||||||
| H magnitude | 13.56 (0.03) | ||||||
| K magnitude | 13.37 (0.03) | ||||||
| u magnitude | 17.93 | ||||||
| g magnitude | 17.15 | ||||||
| r magnitude | 16.24 | ||||||
| i magnitude | 15.70 | ||||||
| z magnitude | 15.39 | ||||||
| G magnitude | 16.11 (0.007) | 16.13 | 16.11 (0.003) | ||||
| BP magnitude | 16.77 (0.007) | 16.79 | |||||
| RP magnitude | 15.29 (0.004) | 15.31 | |||||
| Pan g magnitude | 16.99 (0.008) | ||||||
| Pan r magnitude | 16.21 (0.004) | ||||||
| Pan i magnitude | 15.69 (0.01) | ||||||
| Pan z magnitude | 15.43 (0.009) | ||||||
| Pan y magnitude | 15.26 (0.006) | ||||||
| E(B-V) | 0.018 | ||||||
* 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.