All names: WD 1656+393, SDSS J165802.32+391611.1, WIRED J165802.33+391611.1, Gaia DR2 1352096627229550336, Gaia DR3 1352096627229550336, TIC 82358050, Gaia EDR3 1352096627229550336, SDSS J165802.33+391611.1, 2MASS J16580233+3916109, WISE J165802.30+391611.0, WISEA J165802.29+391611.0
| 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 58 02.29 (0.3) | 16 58 02.33 | 16 58 02.29 (0.4) | 16 58 02.33 | 16 58 02.32 (0.3) | 16 58 02.14 | 16 58 02.33 | |||
| Declination | 39 16 11.02 (0.2) | 39 16 11.16 | 39 16 11.01 (0.4) | 39 16 11.14 | 39 16 10.82 (0.2) | 39 16 04.80 | 39 16 11.15 | |||
| Spectral type | DA+M | M4 | DA4.9+M4 | DA+M | ||||||
| Effective temperature | [K] | 10307.0 (185) | 6300.0 (2) | |||||||
| log(g) | [cgs] | 8.06 (0.2) | 5.03 (0.04) | |||||||
| Mass | [M☉] | 0.64 (0.2) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 2.80 (0.3) | 2.55 (0.4) | 2.80 (0.3) | ||||||
| Distance | [pc] | 356.89 (36) | 392.18 (66) | 307.00 (47) | 356.89 (36) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -26.02336864 (0.3) | -23.84468659 (0.7) | -26.023 (0.3) | ||||||
| Proper motion (declination) | [mas/yr] | 12.2447079 (0.3) | 12.68428268 (0.9) | 12.245 (0.3) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | yes | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 15.60 (0.05) | |||||||||
| H magnitude | 15.09 (0.07) | |||||||||
| K magnitude | 14.83 (0.1) | |||||||||
| u magnitude | 19.98 (0.04) | 20.13 | 19.98 (0.04) | 20.07 | 20.13 (0.05) | |||||
| g magnitude | 19.33 (0.01) | 19.41 | 19.33 (0.01) | 19.34 | 19.41 (0.02) | |||||
| r magnitude | 18.93 (0.01) | 19.02 | 18.93 (0.01) | 18.91 | 19.02 (0.02) | |||||
| i magnitude | 17.83 (0.007) | 17.88 | 17.83 (0.007) | 17.81 | 17.88 (0.01) | |||||
| z magnitude | 17.05 (0.01) | 17.02 | 17.05 (0.01) | 16.96 | 17.02 (0.02) | |||||
| G magnitude | 18.79 (0.03) | 18.72 | 18.78 (0.004) | |||||||
| BP magnitude | 19.36 (0.03) | 19.29 | ||||||||
| RP magnitude | 17.34 (0.01) | 17.36 | ||||||||
| Pan g magnitude | 19.36 (0.009) | |||||||||
| Pan r magnitude | 19.01 (0.02) | |||||||||
| Pan i magnitude | 17.90 (0.004) | |||||||||
| Pan z magnitude | 17.21 (0.005) | |||||||||
| Pan y magnitude | 16.87 (0.009) | |||||||||
| E(B-V) | 0.022 | |||||||||
* 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.