All names: SDSS J034237.98+010858.5, TIC 457160633, WISE J034237.96+010858.4, SDSS J034237.97+010858.5, SDSS J034237.97+010858.3, WD 0340+009, WISEA J034237.97+010858.2, SDSS J034237.98+010858.2, 2MASS J03423797+0108586, WIRED J034237.97+010858.5, Gaia EDR3 3269952120786514944, SDSS J034237.97+010858.2, Gaia DR2 3269952120786514944
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 42 37.97 (0.2) | 03 42 37.98 | 03 42 37.97 (0.2) | 03 42 37.98 | 03 42 37.98 | 03 42 37.78 | 03 42 37.98 | |||
| Declination | 01 08 58.33 (0.1) | 01 08 58.30 | 01 08 58.33 (0.1) | 01 08 58.30 | 01 08 58.29 | 01 08 54.24 | 01 08 58.51 | |||
| Spectral type | DA+M | DA+M | DA | DA+M | ||||||
| Effective temperature | [K] | 6302.0 (6) | 6301.0 (4) | |||||||
| log(g) | [cgs] | 6.16 (0.8) | 5.02 (0.03) | |||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 2.42 (0.2) | 1.96 (0.3) | |||||||
| Distance | [pc] | 413.09 (35) | 510.48 (69) | |||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -7.964107031 (0.2) | -8.542244343 (0.4) | 0.0 (5) | 7.7 | |||||
| Proper motion (declination) | [mas/yr] | -8.784717521 (0.2) | -9.615306059 (0.4) | -5.0 (5) | -4.6 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 15.49 (0.06) | |||||||||
| H magnitude | 14.86 (0.06) | |||||||||
| K magnitude | 14.69 (0.1) | |||||||||
| u magnitude | 20.06 (0.04) | 20.06 (0.04) | 20.27 (0.06) | 20.27 | 20.29 (0.06) | |||||
| g magnitude | 19.33 (0.01) | 19.33 (0.01) | 19.45 (0.03) | 19.44 | 19.47 (0.03) | |||||
| r magnitude | 18.56 (0.008) | 18.56 (0.008) | 18.63 (0.02) | 18.63 | 18.63 (0.02) | |||||
| i magnitude | 17.53 (0.006) | 17.53 (0.006) | 17.57 (0.02) | 17.57 | 17.57 (0.02) | |||||
| z magnitude | 16.87 (0.01) | 16.87 (0.01) | 16.92 (0.02) | 16.92 | 16.93 (0.02) | |||||
| G magnitude | 18.37 (0.03) | 18.40 | ||||||||
| BP magnitude | 19.06 (0.03) | 19.11 | ||||||||
| RP magnitude | 17.12 (0.01) | 17.12 | ||||||||
| Pan g magnitude | 19.32 (0.03) | |||||||||
| Pan r magnitude | 18.64 (0.01) | |||||||||
| Pan i magnitude | 17.60 (0.004) | |||||||||
| Pan z magnitude | 17.05 (0.006) | |||||||||
| Pan y magnitude | 16.77 (0.008) | |||||||||
| E(B-V) | 0.113 | |||||||||
* 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.