All names: Gaia DR3 2757935462973946240, WISE J233856.89+074456.3, Gaia EDR3 2757935462973946240, WISEA J233856.90+074456.2, SDSS J233856.89+074456.4, SDSS J233856.89+074456.3, 2MASS J23385689+0744563, WD 2336+074.1, SDSS J233856.89+074456.2, TIC 336688953, Gaia DR2 2757935462973946240
| 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 | 23 38 56.90 (0.3) | 23 38 56.89 | 23 38 56.90 (0.4) | 23 38 56.89 | 23 38 56.89 (0.3) | 23 38 56.90 | 23 38 56.89 | |||
| Declination | 07 44 56.13 (0.2) | 07 44 56.31 | 07 44 56.14 (0.2) | 07 44 56.40 | 07 44 56.45 (0.2) | 07 44 55.32 | 07 44 56.41 | |||
| Spectral type | DA+M | M3 | DA5.4+M3 | DA+M | ||||||
| Effective temperature | [K] | 6300.0 (3) | ||||||||
| log(g) | [cgs] | 5.00 (0.005) | ||||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 1.34 (0.3) | 2.33 (0.4) | 1.34 (0.3) | ||||||
| Distance | [pc] | 745.71 (165) | 428.82 (75) | 745.71 (165) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 12.11380257 (0.4) | 15.79202681 (0.9) | 12.114 (0.4) | ||||||
| Proper motion (declination) | [mas/yr] | -20.13433636 (0.3) | -19.00722957 (0.4) | -20.134 (0.3) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | yes | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 15.44 (0.05) | |||||||||
| H magnitude | 14.73 (0.08) | |||||||||
| K magnitude | 14.53 (0.07) | |||||||||
| u magnitude | 19.42 (0.03) | 19.52 | 19.42 (0.03) | 19.42 | 19.52 (0.03) | |||||
| g magnitude | 18.98 (0.009) | 19.20 | 18.98 (0.009) | 18.99 | 19.20 (0.02) | |||||
| r magnitude | 18.23 (0.008) | 18.41 | 18.23 (0.008) | 18.23 | 18.41 (0.02) | |||||
| i magnitude | 17.27 (0.006) | 17.34 | 17.27 (0.006) | 17.28 | 17.34 (0.01) | |||||
| z magnitude | 16.62 (0.01) | 16.69 | 16.62 (0.01) | 16.64 | 16.69 (0.02) | |||||
| G magnitude | 18.05 (0.04) | 18.04 | 18.04 (0.005) | |||||||
| BP magnitude | 18.84 (0.04) | 18.83 | ||||||||
| RP magnitude | 16.88 (0.009) | 16.88 | ||||||||
| Pan g magnitude | 19.05 (0.01) | |||||||||
| Pan r magnitude | 18.33 (0.01) | |||||||||
| Pan i magnitude | 17.33 (0.002) | |||||||||
| Pan z magnitude | 16.84 (0.006) | |||||||||
| Pan y magnitude | 16.57 (0.007) | |||||||||
| E(B-V) | 0.083 | |||||||||
* 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.