All names: WDS J13119+5445B, SDSS J131156.69+544455.8, Gaia DR3 1564508327956853888, WD 1309+550, LAMOST J131156.69+544455.8, SDSS J131156.81+544455.0, ** SKF 1742B, Gaia DR2 1564508327956853888, SDSS J131156.70+544455.9, Gaia EDR3 1564508327956853888, SDSS J131156.70+544455.8, SBSS 1309+550B, WIRED J131156.69+544455.8
| Parameter | Unit | Gaia EDR3 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 11 56.76 (0.06) | 13 11 56.69 | 13 11 56.76 (0.07) | 13 11 56.69 | 13 11 56.82 (0.06) | 13 11 56.83 | 13 11 56.70 | |||
| Declination | 54 44 55.36 (0.07) | 54 44 55.80 | 54 44 55.35 (0.07) | 54 44 55.79 | 54 44 55.02 (0.07) | 54 44 53.52 | 54 44 55.85 | |||
| Spectral type | DA+M | DA+M | DA | DA | DA+M | |||||
| Effective temperature | [K] | 10073.0 (76) | 32495.0 (251) | |||||||
| log(g) | [cgs] | 8.99 (0.07) | 6.90 (0.04) | |||||||
| Mass | [M☉] | 1.19 (0.04) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 4.52 (0.08) | 4.50 (0.09) | 4.52 (0.08) | ||||||
| Distance | [pc] | 221.33 (4) | 222.00 (5) | 857.00 (170) | 221.33 (4) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -32.36853743 (0.08) | -32.32225824 (0.1) | -32.369 (0.08) | ||||||
| Proper motion (declination) | [mas/yr] | 21.40484933 (0.09) | 21.74164367 (0.1) | 21.405 (0.09) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 19.68 (0.05) | 24.63 | 16.91 (0.008) | 24.63 | 24.65 (1) | |||||
| g magnitude | 18.78 (0.01) | 18.52 | 16.89 (0.004) | 18.52 | 18.52 (0.2) | |||||
| r magnitude | 17.01 (0.005) | 17.06 | 17.01 (0.005) | 17.06 | 17.07 (0.04) | |||||
| i magnitude | 16.06 (0.005) | 16.04 | 16.06 (0.005) | 16.04 | 16.05 (0.02) | |||||
| z magnitude | 15.46 (0.006) | 15.48 | 15.46 (0.006) | 15.48 | 15.49 (0.02) | |||||
| G magnitude | 17.18 | 17.21 | 17.18 (0.004) | |||||||
| BP magnitude | ||||||||||
| RP magnitude | ||||||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.017 | |||||||||
* 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.