All names: 2MASS J23445972+0027498, WISE J234459.70+002749.8, WISEA J234459.71+002749.6, WD 2342+001, Gaia EDR3 2642947712308207104, Gaia DR2 2642947708014453120, SDSS J234459.61+002749.9, WDS J23450+0028AB, TIC 293308361, SDSS J234459.62+002750.0, ** WAA 53, 2MASS J23445964+0027498, TIC 293308362
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 44 59.62 (0.4) | 23 44 59.62 | 23 44 59.62 (0.4) | 23 44 59.62 | 23 44 59.73 (100) | 23 44 59.62 | 23 44 58.73 | 23 44 59.62 | |||
| Declination | 00 27 49.72 (0.3) | 00 27 49.97 | 00 27 49.72 (0.4) | 00 27 49.90 | 00 27 49.82 (90) | 00 27 49.97 | 00 27 45.72 | 00 27 49.96 | |||
| Spectral type | DC+M | DC+M5 | WD:+M | WD_DME | WD:M | ||||||
| Effective temperature | [K] | 6300.0 (2) | 6300.0 (3) | ||||||||
| log(g) | [cgs] | 8.91 (0.09) | 10.00 (0.003) | ||||||||
| Mass | [M☉] | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 1.77 (0.5) | 3.59 (0.5) | ||||||||
| Distance | [pc] | 565.96 (150) | 278.74 (40) | 1466.00 (768) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -4.233165809 (0.5) | -4.805250269 (1) | ||||||||
| Proper motion (declination) | [mas/yr] | -5.828477497 (0.4) | -6.009784524 (0.6) | ||||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | |||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 14.78 (0.07) | ||||||||||
| H magnitude | 14.16 (0.08) | ||||||||||
| K magnitude | 14.10 (0.09) | ||||||||||
| u magnitude | 19.80 (0.03) | 19.80 | 19.80 (0.04) | 19.81 | 19.77 (0.04) | ||||||
| g magnitude | 19.39 (0.01) | 19.37 | 19.37 (0.04) | 19.36 | 19.36 (0.04) | ||||||
| r magnitude | 18.96 (0.01) | 18.94 | 18.94 (0.1) | 18.95 | 18.92 (0.1) | ||||||
| i magnitude | 17.73 (0.008) | 17.71 | 17.71 (0.09) | 17.71 | 17.69 (0.09) | ||||||
| z magnitude | 16.81 (0.01) | 16.82 | 16.82 (0.07) | 16.83 | 16.80 (0.07) | ||||||
| G magnitude | 18.60 (0.04) | 18.50 | |||||||||
| BP magnitude | 19.19 (0.04) | 19.28 | |||||||||
| RP magnitude | 17.12 (0.02) | 17.11 | |||||||||
| Pan g magnitude | 19.36 (0.009) | ||||||||||
| Pan r magnitude | 18.95 (0.006) | ||||||||||
| Pan i magnitude | 17.71 (0.004) | ||||||||||
| Pan z magnitude | 16.93 (0.005) | ||||||||||
| Pan y magnitude | 16.49 (0.005) | ||||||||||
| E(B-V) | 0.035 | ||||||||||
* 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.