All names: EPIC 211818774, SDSS J083311.87+173456.8, WISE J083311.89+173456.9, SDSS J083311.88+173456.9, WISEA J083311.89+173456.8, SDSS J083311.87+173456.9, Gaia EDR3 659129355104403840, Gaia DR2 659129355104403840, WIRED J083311.87+173456.9, TIC 20497094, WD 0830+177, 2MASS J08331190+1734568
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 33 11.88 (0.1) | 08 33 11.88 | 08 33 11.88 (0.3) | 08 33 11.87 | 08 33 11.88 | 08 33 11.52 | 08 33 11.88 | |||
| Declination | 17 34 56.83 (0.1) | 17 34 56.89 | 17 34 56.84 (0.2) | 17 34 56.89 | 17 34 56.89 | 17 34 49.80 | 17 34 56.93 | |||
| Spectral type | DA+M | DA+M3 | DA3.8 M | DA+M | ||||||
| Effective temperature | [K] | 13127.0 (918) | 6302.0 (6) | |||||||
| log(g) | [cgs] | 7.91 (0.1) | 5.00 (0.006) | |||||||
| Mass | [M☉] | 0.56 (0.08) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 3.56 (0.2) | 3.58 (0.4) | |||||||
| Distance | [pc] | 280.97 (14) | 279.37 (29) | |||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -12.20113735 (0.2) | -15.53582753 (0.6) | |||||||
| Proper motion (declination) | [mas/yr] | -7.287665113 (0.1) | -3.369318666 (0.5) | |||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 15.10 (0.05) | |||||||||
| H magnitude | 14.41 (0.05) | |||||||||
| K magnitude | 14.22 (0.08) | |||||||||
| u magnitude | 19.00 (0.02) | 18.96 | 19.00 (0.02) | 18.96 | 18.98 (0.03) | |||||
| g magnitude | 18.29 (0.007) | 18.42 | 18.29 (0.007) | 18.42 | 18.42 (0.02) | |||||
| r magnitude | 17.80 (0.006) | 18.04 | 17.80 (0.006) | 18.04 | 18.04 (0.02) | |||||
| i magnitude | 16.91 (0.006) | 16.99 | 16.91 (0.006) | 16.99 | 16.99 (0.02) | |||||
| z magnitude | 16.33 (0.008) | 16.33 | 16.33 (0.008) | 16.33 | 16.35 (0.02) | |||||
| G magnitude | 17.76 (0.03) | 17.70 | ||||||||
| BP magnitude | 18.28 (0.03) | 18.29 | ||||||||
| RP magnitude | 16.48 (0.007) | 16.50 | ||||||||
| Pan g magnitude | 18.33 (0.01) | |||||||||
| Pan r magnitude | 17.92 (0.03) | |||||||||
| Pan i magnitude | 16.93 (0.004) | |||||||||
| Pan z magnitude | 16.45 (0.005) | |||||||||
| Pan y magnitude | 16.22 (0.005) | |||||||||
| E(B-V) | 0.019 | |||||||||
* 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.