All names: SDSS J171810.16+610114.0, [SGR2010] J1718+6101, Gaia DR3 1437663748839144192, TIC 233658072, Gaia DR2 1437663748839144192, Gaia EDR3 1437663748839144192, SBC9 3395, WIRED J171810.15+610114.0, SDSS J171810.14+610114.0, [HHD2009] SDSS J1718+6101, GALEX J171810.2+610113, WD 1717+610, SDSS J171810.15+610114.0, SDSS J171810.15+610114.1, 2MASS J17181016+6101142
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | 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 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 18 10.19 (0.08) | 17 18 10.15 | 17 18 10.19 (0.1) | 17 18 10.15 | 17 18 10.16 (0.08) | 17 18 10.15 | 17 18 10.08 | 17 18 10.16 | |||||
| Declination | 61 01 13.67 (0.09) | 61 01 14.03 | 61 01 13.68 (0.1) | 61 01 14.02 | 61 01 14.03 (0.09) | 61 01 14.16 | 61 01 09.12 | 61 01 14.01 | |||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA+ME | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 18120.0 (519) | 19550.0 (700) | 9083.0 (46) | 8982.0 (54) | ||||||||
| log(g) | [cgs] | 7.83 (0.1) | 7.87 (0.1) | 7.99 (0.07) | 7.85 (0.09) | ||||||||
| Mass | [M☉] | 0.53 (0.06) | 0.55 (0.06) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.0661 | |||||||||||
| 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] | 3.37 (0.09) | 3.25 (0.1) | 3.37 (0.09) | |||||||||
| Distance | [pc] | 296.84 (8) | 308.01 (11) | 517.00 (35) | 296.84 (8) | ||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 15.78380569 (0.1) | 15.655785 (0.2) | 15.784 (0.1) | 17.7 | ||||||||
| Proper motion (declination) | [mas/yr] | -22.44442524 (0.1) | -22.36192187 (0.3) | -22.444 (0.1) | -20.7 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | WDMS | WDMS | WDMS | WDMS | |||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.84 (0.08) | ||||||||||||
| H magnitude | 15.15 (0.1) | ||||||||||||
| K magnitude | 14.78 (0.1) | ||||||||||||
| u magnitude | 18.26 (0.01) | 18.28 | 18.26 (0.01) | 18.28 (0.02) | 18.27 | 18.28 (0.02) | |||||||
| g magnitude | 18.01 (0.006) | 17.99 | 18.00 (0.006) | 18.00 (0.02) | 18.02 | 18.00 (0.02) | |||||||
| r magnitude | 18.20 (0.008) | 18.20 | 18.21 (0.008) | 18.20 (0.01) | 18.20 | 18.21 (0.02) | |||||||
| i magnitude | 17.77 (0.007) | 17.77 | 17.77 (0.007) | 17.77 (0.01) | 17.77 | 17.78 (0.01) | |||||||
| z magnitude | 17.18 (0.01) | 17.17 | 17.17 (0.01) | 17.17 (0.02) | 17.17 | 17.19 (0.02) | |||||||
| G magnitude | 17.86 (0.01) | 17.87 | 17.86 (0.003) | ||||||||||
| BP magnitude | 18.13 (0.01) | 18.10 | |||||||||||
| RP magnitude | 17.29 (0.02) | 17.30 | |||||||||||
| Pan g magnitude | 18.06 (0.004) | ||||||||||||
| Pan r magnitude | 18.21 (0.005) | ||||||||||||
| Pan i magnitude | 17.77 (0.005) | ||||||||||||
| Pan z magnitude | 17.31 (0.005) | ||||||||||||
| Pan y magnitude | 17.03 (0.009) | ||||||||||||
| 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.