All names: SDSS J173922.19+435504.1, TIC 164307391, Gaia DR2 1349970347835499904, Gaia DR3 1349970347835499904, Gaia EDR3 1349970347835499904, 2MASS J17392220+4355037, SDSS J173922.20+435504.3
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 39 22.17 (0.1) | 17 39 22.19 | 17 39 22.17 (0.1) | 17 39 22.20 | 17 39 22.20 (0.1) | |||
| Declination | 43 55 04.83 (0.1) | 43 55 04.11 | 43 55 04.80 (0.1) | 43 55 04.12 | 43 55 03.89 (0.1) | |||
| Spectral type | WD+M | M3e | ||||||
| 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] | 5.25 (0.1) | 4.89 (0.2) | 5.25 (0.1) | ||||
| Distance | [pc] | 190.38 (4) | 204.66 (7) | 190.37 (4) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -18.64861076 (0.1) | -18.47372432 (0.3) | -18.649 (0.1) | ||||
| Proper motion (declination) | [mas/yr] | 58.33725736 (0.1) | 58.40187551 (0.3) | 58.337 (0.1) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | WDMS | |||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 14.66 (0.04) | |||||||
| H magnitude | 14.21 (0.04) | |||||||
| K magnitude | 13.90 (0.06) | |||||||
| u magnitude | 20.23 (0.04) | 20.35 | 20.23 (0.04) | |||||
| g magnitude | 18.83 (0.008) | 18.91 | 18.82 (0.008) | |||||
| r magnitude | 17.80 (0.006) | 17.90 | 17.80 (0.006) | |||||
| i magnitude | 16.71 (0.005) | 16.75 | 16.71 (0.005) | |||||
| z magnitude | 16.02 (0.008) | 16.07 | 16.02 (0.008) | |||||
| G magnitude | 17.58 (0.03) | 17.59 | 17.58 (0.003) | |||||
| BP magnitude | 18.70 (0.03) | 18.63 | ||||||
| RP magnitude | 16.31 (0.007) | 16.31 | ||||||
| Pan g magnitude | 18.93 (0.02) | |||||||
| Pan r magnitude | 17.98 (0.01) | |||||||
| Pan i magnitude | 16.80 (0.006) | |||||||
| Pan z magnitude | 16.20 (0.004) | |||||||
| Pan y magnitude | 15.92 (0.002) | |||||||
| E(B-V) | 0.025 | |||||||
* 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.