All names: SDSS J105617.51+505321.2, SDSS J105617.52+505321.2, GALEX J105617.5+505321, TIC 318276272, Gaia EDR3 836107708783887360, LAMOST J105617.51+505321.2, SDSS J105617.51+505321.1, [HHD2009] SDSS J1056+5053, WIRED J105617.51+505321.2, Gaia DR2 836107708783887360, Gaia DR3 836107708783887360, WD 1053+511, 2MASS J10561749+5053214
| 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 | 10 56 17.51 (0.1) | 10 56 17.51 | 10 56 17.51 (0.2) | 10 56 17.51 | 10 56 17.51 (0.1) | 10 56 17.52 | 10 56 16.92 | 10 56 17.52 | |||||
| Declination | 50 53 20.96 (0.2) | 50 53 21.18 | 50 53 20.97 (0.6) | 50 53 21.19 | 50 53 21.23 (0.2) | 50 53 21.19 | 50 53 16.44 | 50 53 21.21 | |||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA dM | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 17506.0 (451) | 18850.0 (450) | 10026.0 (60) | 9957.0 (63) | ||||||||
| log(g) | [cgs] | 7.50 (0.1) | 7.60 (0.08) | 8.28 (0.08) | 8.21 (0.07) | ||||||||
| Mass | [M☉] | 0.385 (0.04) | 0.44 (0.02) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.0891 | |||||||||||
| 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] | 1.85 (0.2) | 0.79 (0.8) | 1.85 (0.2) | |||||||||
| Distance | [pc] | 541.10 (59) | 1261.31 (1346) | 1097.00 (107) | 541.10 (59) | ||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 0.691088654 (0.2) | 0.243193611 (0.5) | 0.691 (0.2) | 1.8 | ||||||||
| Proper motion (declination) | [mas/yr] | -16.97540023 (0.2) | -16.48637123 (0.5) | -16.975 (0.2) | -17.3 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | WDMS | WDMS | WDMS | WDMS | |||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 16.85 (0.1) | ||||||||||||
| H magnitude | 16.41 (0.2) | ||||||||||||
| K magnitude | 15.58 (0.03) | ||||||||||||
| u magnitude | 18.92 (0.02) | 18.89 | 18.92 (0.02) | 18.89 (0.03) | 18.89 | 18.91 (0.03) | |||||||
| g magnitude | 18.60 (0.007) | 18.60 | 18.60 (0.007) | 18.61 (0.02) | 18.61 | 18.61 (0.02) | |||||||
| r magnitude | 18.88 (0.01) | 18.88 | 18.88 (0.01) | 18.88 (0.02) | 18.88 | 18.89 (0.02) | |||||||
| i magnitude | 18.76 (0.01) | 18.76 | 18.74 (0.01) | 18.76 (0.02) | 18.76 | 18.77 (0.02) | |||||||
| z magnitude | 18.35 (0.03) | 18.34 | 18.35 (0.03) | 18.34 (0.03) | 18.34 | 18.36 (0.03) | |||||||
| G magnitude | 18.64 (0.02) | 18.66 | 18.64 (0.004) | ||||||||||
| BP magnitude | 18.75 (0.02) | 18.68 | |||||||||||
| RP magnitude | 18.35 (0.02) | 18.28 | |||||||||||
| Pan g magnitude | 18.68 (0.01) | ||||||||||||
| Pan r magnitude | 18.90 (0.01) | ||||||||||||
| Pan i magnitude | 18.75 (0.009) | ||||||||||||
| Pan z magnitude | 18.44 (0.009) | ||||||||||||
| Pan y magnitude | 18.17 (0.02) | ||||||||||||
| 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.