All names: GALEX J134207.2+285709, Gaia DR2 1455097059749112960, Gaia DR3 1455097059749112960, TIC 416607592, [SGR2010] J1342+2857, 2MASS J13420723+2857079, SDSS J134207.24+285707.9, WD 1339+292, Gaia EDR3 1455097059749112960
| 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) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 42 07.22 (0.1) | 13 42 07.25 | 13 42 07.22 (0.1) | 13 42 07.25 | 13 42 07.25 (0.1) | 13 42 06.91 | |||
| Declination | 28 57 08.10 (0.08) | 28 57 07.96 | 28 57 08.09 (0.09) | 28 57 07.96 | 28 57 07.90 (0.08) | 28 57 05.76 | |||
| Spectral type | WD+M | D+M3 | WD+M3 | ||||||
| Effective temperature | [K] | ||||||||
| log(g) | [cgs] | ||||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 1.61 (0.1) | 1.29 (0.2) | 1.61 (0.1) | |||||
| Distance | [pc] | 620.95 (56) | 772.70 (93) | 620.96 (56) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -21.60062143 (0.2) | -22.4823525 (0.3) | -21.601 (0.2) | |||||
| Proper motion (declination) | [mas/yr] | 12.0468005 (0.1) | 12.30789185 (0.2) | 12.047 (0.1) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | yes | |||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.15 (0.05) | ||||||||
| H magnitude | 14.54 (0.06) | ||||||||
| K magnitude | 14.28 (0.06) | ||||||||
| u magnitude | 20.44 (0.06) | 20.47 | 20.46 (0.06) | 20.46 | |||||
| g magnitude | 19.34 (0.01) | 19.41 | 19.36 (0.01) | 19.36 | |||||
| r magnitude | 18.19 (0.007) | 18.22 | 18.19 (0.007) | 18.19 | |||||
| i magnitude | 17.08 (0.006) | 17.10 | 17.08 (0.006) | 17.08 | |||||
| z magnitude | 16.49 (0.009) | 16.51 | 16.49 (0.009) | 16.49 | |||||
| G magnitude | 17.80 (0.02) | 17.82 | 17.80 (0.003) | ||||||
| BP magnitude | 18.87 (0.02) | 18.92 | |||||||
| RP magnitude | 16.65 (0.005) | 16.66 | |||||||
| Pan g magnitude | 19.18 (0.02) | ||||||||
| Pan r magnitude | 18.17 (0.006) | ||||||||
| Pan i magnitude | 17.10 (0.007) | ||||||||
| Pan z magnitude | 16.60 (0.004) | ||||||||
| Pan y magnitude | 16.33 (0.004) | ||||||||
| E(B-V) | 0.018 | ||||||||
* 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.