All names: Gaia EDR3 4018079722319132800, [HHD2009] SDSS J1139+2659, LAMOST J113941.31+265944.1, GALEX J113941.3+265945, SDSS J113941.31+265944.1, WIRED J113941.31+265944.1, SDSS J113941.32+265944.1, SDSS J113941.32+265944.2, WD 1137+272, SDSS J113941.28+265944.2, Gaia DR2 4018079722319132800, Gaia DR3 4018079722319132800
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Guo et al. 2015 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 39 41.32 (0.2) | 11 39 41.32 | 11 39 41.32 (0.3) | 11 39 41.31 | 11 39 41.31 (0.2) | 11 39 40.97 | 11 39 41.32 | |||||
| Declination | 26 59 43.98 (0.2) | 26 59 44.14 | 26 59 43.99 (0.5) | 26 59 44.09 | 26 59 44.22 (0.2) | 26 59 40.20 | 26 59 44.16 | |||||
| Spectral type | DA+M | DA | DA+M | DA dM | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 13588.0 (1050) | 10853.0 (173) | |||||||||
| log(g) | [cgs] | 7.39 (0.2) | 7.57 (0.1) | |||||||||
| Mass | [M☉] | 0.33 (0.07) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 2.31 (0.3) | 2.31 (0.3) | |||||||||
| Distance | [pc] | 433.02 (65) | 433.01 (65) | |||||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 13.95648715 (0.3) | 13.956 (0.3) | |||||||||
| Proper motion (declination) | [mas/yr] | -14.76279657 (0.4) | -14.763 (0.4) | |||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 19.31 (0.03) | 19.34 | 19.34 (0.03) | 19.33 | 19.35 (0.03) | |||||||
| g magnitude | 18.88 (0.009) | 18.85 | 18.86 (0.009) | 18.84 | 18.86 (0.02) | |||||||
| r magnitude | 19.05 (0.01) | 19.02 | 19.03 (0.01) | 19.01 | 19.03 (0.02) | |||||||
| i magnitude | 18.97 (0.01) | 19.00 | 18.97 (0.01) | 19.00 | 19.02 (0.02) | |||||||
| z magnitude | 18.66 (0.04) | 18.70 | 18.66 (0.04) | 18.69 | 18.72 (0.04) | |||||||
| G magnitude | 18.87 (0.03) | 18.89 | 18.87 (0.005) | |||||||||
| BP magnitude | 18.95 (0.03) | 18.88 | ||||||||||
| RP magnitude | 18.56 (0.06) | 18.50 | ||||||||||
| Pan g magnitude | 18.87 (0.03) | |||||||||||
| Pan r magnitude | 19.07 (0.01) | |||||||||||
| Pan i magnitude | 19.00 (0.01) | |||||||||||
| Pan z magnitude | 18.76 (0.01) | |||||||||||
| Pan y magnitude | 18.59 (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.