All names: WD 1316+677, SDSS J131751.71+673159.2, Gaia DR2 1684650348617089280, PG 1316+678, Gaia EDR3 1684650348617089280, [DWS97] Dra 1, FBS 1316+678, PTF1 J131751.64+673159.2, Gaia DR3 1684650348617089280, UCAC4 788-023195, WIRED J131751.72+673159.3, SDSS J131751.72+673159.4, SDSS J131751.72+673159.3, SDSS J131751.70+673159.2, AAVSO 1314+68, [HHD2009] SDSS J1317+6731, TIC 232972481, 2MASS J13175173+6731594, FBS B 817
| 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 | 13 17 51.66 (0.03) | 13 17 51.71 | 13 17 51.66 (0.05) | 13 17 51.72 | 13 17 51.72 (0.03) | 13 17 51.71 | 13 17 51.14 | 13 17 51.72 | |||||
| Declination | 67 31 59.28 (0.03) | 67 31 59.29 | 67 31 59.28 (0.04) | 67 31 59.30 | 67 31 59.31 (0.03) | 67 31 59.28 | 67 31 56.28 | 67 31 59.36 | |||||
| Spectral type | DA+M | DA+M | DA | DA+dM | DA+M: | DA+ME | DAEM | ||||||
| Effective temperature | [K] | 79476.0 (9756) | 99575.0 (186) | 88290.0 (12650) | 10273.0 (103) | 11737.0 (139) | |||||||
| log(g) | [cgs] | 6.99 (0.3) | 8.19 (0.2) | 6.64 (0.3) | 8.99 (0.02) | 9.97 (0.04) | |||||||
| Mass | [M☉] | 0.44 (0.07) | 0.87 (0.09) | 0.42 (0.09) | |||||||||
| log(Luminosity) | [L☉] | 1.65 (0.3) | |||||||||||
| Cooling age | [Gyr] | 0.0001 | 0.0000 | ||||||||||
| 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] | 1.47 (0.03) | 1.39 (0.06) | 1.47 (0.03) | |||||||||
| Distance | [pc] | 679.20 (14) | 720.16 (31) | 724.00 (92) | 679.21 (14) | ||||||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -21.13778259 (0.03) | -21.09754114 (0.1) | -21.138 (0.03) | -19.4 | ||||||||
| Proper motion (declination) | [mas/yr] | -1.786730914 (0.03) | -1.811868299 (0.09) | -1.787 (0.03) | -3.7 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | WDMS | WDMS | yes | ||||||||||
| B magnitude | 15.74 (0.04) | ||||||||||||
| V magnitude | 16.01 (0.09) | ||||||||||||
| R magnitude | 16.33 (0.2) | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.23 (0.05) | ||||||||||||
| H magnitude | 14.72 (0.07) | ||||||||||||
| K magnitude | 14.66 (0.1) | ||||||||||||
| u magnitude | 15.46 (0.004) | 15.52 | 15.50 (0.004) | 15.52 (0.02) | 15.47 | 15.55 (0.02) | |||||||
| g magnitude | 15.84 (0.003) | 15.80 | 15.82 (0.003) | 15.80 (0.08) | 15.86 | 15.79 (0.08) | |||||||
| r magnitude | 16.09 (0.004) | 16.09 | 16.09 (0.004) | 16.09 (0.009) | 16.09 | 16.09 (0.01) | |||||||
| i magnitude | 16.14 (0.004) | 16.13 | 16.14 (0.004) | 16.13 (0.02) | 16.13 | 16.13 (0.02) | |||||||
| z magnitude | 16.15 (0.007) | 16.13 | 16.14 (0.007) | 16.13 (0.02) | 16.13 | 16.13 (0.02) | |||||||
| G magnitude | 15.87 (0.005) | 15.90 | 15.87 (0.003) | ||||||||||
| BP magnitude | 15.86 (0.005) | 15.81 | |||||||||||
| RP magnitude | 15.79 (0.004) | 15.80 | |||||||||||
| Pan g magnitude | 15.88 (0.004) | ||||||||||||
| Pan r magnitude | 16.06 (0.002) | ||||||||||||
| Pan i magnitude | 16.14 (0.003) | ||||||||||||
| Pan z magnitude | 16.14 (0.005) | ||||||||||||
| Pan y magnitude | 16.17 (0.007) | ||||||||||||
| E(B-V) | 0.018 | ||||||||||||
* 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.