All names: TIC 198386034, Gaia DR2 1432335549851126272, [HHD2009] SDSS J1711+5554, WD 1710+559, [SGR2010] J1711+5554, SDSS J171145.43+555444.7, 2MASS J17114552+5554443, SDSS J171145.43+555444.3, Gaia EDR3 1432335554147204864, Gaia DR3 1432335554147204864, SDSS J171145.44+555444.5, SDSS J171145.43+555444.5, SDSS J171145.42+555444.4, GALEX J171145.5+555445, WIRED J171145.42+555444.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 11 45.39 (0.4) | 17 11 45.44 | 17 11 45.39 (0.5) | 17 11 45.42 | 17 11 45.42 (0.4) | 17 11 45.44 | 17 11 44.18 | 17 11 45.43 | |||||
| Declination | 55 54 44.65 (0.5) | 55 54 44.37 | 55 54 44.65 (0.5) | 55 54 44.39 | 55 54 44.43 (0.5) | 55 54 44.50 | 55 54 40.68 | 55 54 44.49 | |||||
| Spectral type | DA+M | DA+M | DA | DA+M | DA+M | DA+M | DA+M | ||||||
| Effective temperature | [K] | 34759.0 (439) | 21700.0 (366) | 35170.0 (480) | 7921.0 (29) | 7528.0 (44) | |||||||
| log(g) | [cgs] | 7.65 (0.08) | 8.51 (0.09) | 7.69 (0.09) | 9.00 (0.01) | 8.34 (0.07) | |||||||
| Mass | [M☉] | 0.5 (0.03) | 0.94 (0.04) | 0.52 (0.04) | |||||||||
| log(Luminosity) | [L☉] | -0.40 (0.06) | |||||||||||
| Cooling age | [Gyr] | 0.0048 (0.0006) | 0.0060 | ||||||||||
| log(H/He) | |||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| log(C/H) | |||||||||||||
| log(N/H) | |||||||||||||
| log(O/H) | |||||||||||||
| log(Na/H) | |||||||||||||
| log(Mg/H) | |||||||||||||
| log(Al/H) | |||||||||||||
| log(Si/H) | |||||||||||||
| log(P/H) | |||||||||||||
| log(S/H) | |||||||||||||
| log(Sc/H) | |||||||||||||
| log(Ti/H) | |||||||||||||
| log(Cr/H) | |||||||||||||
| log(Mn/H) | |||||||||||||
| log(Fe/H) | |||||||||||||
| log(Ni/H) | |||||||||||||
| Parallax | [mas] | 2.10 (0.5) | 3.49 (0.5) | 2.10 (0.5) | |||||||||
| Distance | [pc] | 477.27 (104) | 286.61 (40) | 477.26 (104) | |||||||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -14.76612034 (0.6) | -12.75194442 (1) | -14.766 (0.6) | -14.8 | ||||||||
| Proper motion (declination) | [mas/yr] | 14.0024297 (0.6) | 8.722086374 (1) | 14.002 (0.6) | 18.5 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 16.39 (0.1) | ||||||||||||
| H magnitude | 16.28 (0.2) | ||||||||||||
| K magnitude | 15.56 (0.1) | ||||||||||||
| u magnitude | 18.00 (0.01) | 18.03 | 18.00 (0.01) | 18.03 (0.03) | 18.01 | 18.01 (0.03) | |||||||
| g magnitude | 18.26 (0.006) | 18.27 | 18.26 (0.006) | 18.27 (0.02) | 18.27 | 18.28 (0.02) | |||||||
| r magnitude | 18.55 (0.009) | 18.56 | 18.55 (0.009) | 18.56 (0.01) | 18.57 | 18.56 (0.01) | |||||||
| i magnitude | 18.23 (0.009) | 18.26 | 18.23 (0.009) | 18.26 (0.02) | 18.25 | 18.25 (0.02) | |||||||
| z magnitude | 17.76 (0.02) | 17.77 | 17.76 (0.02) | 17.77 (0.03) | 17.77 | 17.77 (0.03) | |||||||
| G magnitude | 18.56 (0.02) | 18.54 | 18.56 (0.008) | ||||||||||
| BP magnitude | 18.39 (0.02) | 18.36 | |||||||||||
| RP magnitude | 17.86 (0.02) | 17.88 | |||||||||||
| Pan g magnitude | 18.37 (0.005) | ||||||||||||
| Pan r magnitude | 18.62 (0.006) | ||||||||||||
| Pan i magnitude | 18.30 (0.006) | ||||||||||||
| Pan z magnitude | 17.91 (0.005) | ||||||||||||
| Pan y magnitude | 17.67 (0.01) | ||||||||||||
| 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.