All names: Gaia DR3 1439410602233858048, WIRED J173101.49+623315.9, Gaia EDR3 1439410602233858048, WD 1730+625, 2MASS J17310148+6233160, SBC9 3396, SDSS J173101.49+623316.3, [SGR2010] J1731+6233, SDSS J173101.48+623316.0, SDSS J173101.49+623316.0, [HHD2009] SDSS J1731+6233, SDSS J173101.49+623315.9, TIC 219764457, Gaia DR2 1439410602233858048
| 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 31 01.49 (0.08) | 17 31 01.49 | 17 31 01.49 (0.1) | 17 31 01.49 | 17 31 01.50 (0.08) | 17 31 01.49 | 17 31 01.10 | 17 31 01.49 | |||||
| Declination | 62 33 16.30 (0.08) | 62 33 16.05 | 62 33 16.28 (0.1) | 62 33 15.91 | 62 33 15.94 (0.08) | 62 33 16.02 | 62 33 10.80 | 62 33 15.98 | |||||
| Spectral type | DA+M | DA | DA+dMe | DA+M | DA+ME | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 16159.0 (548) | 15850.0 (490) | 9099.0 (56) | 8914.0 (66) | ||||||||
| log(g) | [cgs] | 7.55 (0.1) | 7.37 (0.1) | 7.94 (0.07) | 7.30 (0.1) | ||||||||
| Mass | [M☉] | 0.41 (0.05) | 0.37 (0.03) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.1698 | |||||||||||
| 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] | 2.53 (0.08) | 2.49 (0.1) | 2.53 (0.08) | |||||||||
| Distance | [pc] | 395.17 (13) | 401.62 (18) | 444.00 (105) | 395.16 (13) | ||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -4.147671166 (0.1) | -4.301240905 (0.2) | -4.148 (0.1) | -4.0 | ||||||||
| Proper motion (declination) | [mas/yr] | 22.13816289 (0.1) | 21.82971858 (0.2) | 22.138 (0.1) | 24.0 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | WDMS | WDMS | WDMS | WDMS | |||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.70 (0.07) | ||||||||||||
| H magnitude | 15.03 (0.09) | ||||||||||||
| K magnitude | 14.86 (0.1) | ||||||||||||
| u magnitude | 18.64 (0.02) | 18.57 | 18.56 (0.02) | 18.57 (0.03) | 18.56 | 18.58 (0.02) | |||||||
| g magnitude | 18.26 (0.007) | 18.25 | 18.25 (0.007) | 18.25 (0.02) | 18.26 | 18.27 (0.02) | |||||||
| r magnitude | 18.32 (0.008) | 18.30 | 18.30 (0.008) | 18.30 (0.02) | 18.30 | 18.31 (0.02) | |||||||
| i magnitude | 17.70 (0.007) | 17.72 | 17.72 (0.007) | 17.72 (0.03) | 17.71 | 17.74 (0.03) | |||||||
| z magnitude | 17.09 (0.01) | 17.08 | 17.08 (0.01) | 17.08 (0.02) | 17.09 | 17.10 (0.02) | |||||||
| G magnitude | 17.95 (0.02) | 17.95 | 17.95 (0.003) | ||||||||||
| BP magnitude | 18.35 (0.02) | 18.37 | |||||||||||
| RP magnitude | 17.25 (0.01) | 17.24 | |||||||||||
| Pan g magnitude | 18.28 (0.01) | ||||||||||||
| Pan r magnitude | 18.31 (0.008) | ||||||||||||
| Pan i magnitude | 17.76 (0.003) | ||||||||||||
| Pan z magnitude | 17.20 (0.01) | ||||||||||||
| Pan y magnitude | 16.93 (0.009) | ||||||||||||
| E(B-V) | 0.023 | ||||||||||||
* 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.