All names: SDSS J172234.53+321238.7, Gaia DR2 1333680636394705792, SDSS J172234.52+321238.6, 2MASS J17223454+3212387, WD 1720+322, TIC 9783192, Gaia EDR3 1333680636394705792, SDSS J172234.54+321238.8, WIRED J172234.53+321238.7, SDSS J172234.51+321238.6, [SGR2010] J1722+3212, Gaia DR3 1333680636394705792
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 22 34.50 (0.08) | 17 22 34.53 | 17 22 34.50 (0.1) | 17 22 34.54 | 17 22 34.50 | 17 22 34.54 (0.08) | 17 22 34.25 | 17 22 34.54 | ||||
| Declination | 32 12 38.60 (0.09) | 32 12 38.69 | 32 12 38.60 (0.1) | 32 12 38.77 | 32 12 38.60 | 32 12 38.80 (0.09) | 32 12 37.08 | 32 12 38.78 | ||||
| Spectral type | DA+M | DA | DA+M | DA3.0+M6 | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 17008.0 (227) | 10254.0 (29) | |||||||||
| log(g) | [cgs] | 7.84 (0.05) | 8.34 (0.03) | |||||||||
| Mass | [M☉] | 0.525 (0.03) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 3.98 (0.1) | 4.17 (0.1) | 3.98 | 3.98 (0.1) | |||||||
| Distance | [pc] | 251.14 (6) | 239.91 (7) | 248.00 (8) | 251.14 | 251.14 (6) | ||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -29.87381209 (0.1) | -29.75702569 (0.2) | -29.874 (0.1) | ||||||||
| Proper motion (declination) | [mas/yr] | -12.53020946 (0.1) | -12.02887259 (0.2) | -12.53 (0.1) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | yes | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.26 (0.04) | |||||||||||
| H magnitude | 14.63 (0.06) | |||||||||||
| K magnitude | 14.48 (0.07) | |||||||||||
| u magnitude | 17.97 (0.01) | 17.89 | 17.88 (0.01) | 17.87 | 17.89 (0.02) | |||||||
| g magnitude | 17.64 (0.006) | 17.65 | 17.63 (0.005) | 17.63 | 17.65 (0.01) | |||||||
| r magnitude | 17.83 (0.006) | 17.83 | 17.82 (0.006) | 17.82 | 17.83 (0.01) | |||||||
| i magnitude | 17.44 (0.006) | 17.41 | 17.41 (0.006) | 17.41 | 17.41 (0.02) | |||||||
| z magnitude | 16.81 (0.01) | 16.78 | 16.78 (0.01) | 16.78 | 16.78 (0.02) | |||||||
| G magnitude | 17.51 (0.008) | 17.50 | 17.51 | 17.51 (0.003) | ||||||||
| BP magnitude | 17.71 (0.008) | 17.72 | ||||||||||
| RP magnitude | 16.92 (0.007) | 16.91 | ||||||||||
| Pan g magnitude | 17.64 (0.006) | |||||||||||
| Pan r magnitude | 17.82 (0.002) | |||||||||||
| Pan i magnitude | 17.43 (0.003) | |||||||||||
| Pan z magnitude | 16.91 (0.004) | |||||||||||
| Pan y magnitude | 16.56 (0.007) | |||||||||||
| E(B-V) | 0.020 | |||||||||||
* 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.