All names: SDSS J134520.62+174805.3, WISE J134520.62+174805.4, Gaia EDR3 1244646101786338560, WD 1342+180, SDSS J134520.61+174805.3, Gaia DR2 1244646101785570816, Gaia DR2 1244646101786338560, SDSS J134520.62+174805.4, 2MASS J13452062+1748055
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | SDSS DR12 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 45 20.59 (0.4) | 13 45 20.59 (0.7) | 13 45 20.62 | 13 45 20.62 (0.2) | 13 45 20.28 | 13 45 20.62 | ||
| Declination | 17 48 04.94 (0.6) | 17 48 04.94 (1) | 17 48 05.35 | 17 48 05.42 (0.2) | 17 47 59.64 | 17 48 05.38 | ||
| Spectral type | M3 | DA4.6+M3 | DA+M | |||||
| Effective temperature | [K] | 6300.0 (3) | ||||||
| log(g) | [cgs] | 5.00 (0.003) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 2.40 (0.5) | 3.70 (0.3) | |||||
| Distance | [pc] | 417.42 (89) | 270.23 (18) | |||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -3.529291604 (0.5) | 0.484 (0.5) | |||||
| Proper motion (declination) | [mas/yr] | -1.887941295 (0.7) | -2.79 (0.3) | |||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | yes | WDMS | ||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 15.20 (0.04) | |||||||
| H magnitude | 14.65 (0.07) | |||||||
| K magnitude | 14.25 (0.08) | |||||||
| u magnitude | 19.36 (0.03) | 19.36 (0.03) | 19.37 | 19.44 (0.03) | ||||
| g magnitude | 18.77 (0.009) | 18.77 (0.009) | 18.76 | 18.87 (0.03) | ||||
| r magnitude | 18.14 (0.007) | 18.14 (0.007) | 18.14 | 18.28 (0.01) | ||||
| i magnitude | 17.19 (0.006) | 17.19 (0.006) | 17.18 | 17.21 (0.02) | ||||
| z magnitude | 16.55 (0.009) | 16.55 (0.009) | 16.56 | 16.59 (0.02) | ||||
| G magnitude | 19.41 | 19.45 | 17.93 (0.004) | |||||
| BP magnitude | ||||||||
| RP magnitude | ||||||||
| Pan g magnitude | 18.77 (0.01) | |||||||
| Pan r magnitude | 18.20 (0.01) | |||||||
| Pan i magnitude | 17.19 (0.003) | |||||||
| Pan z magnitude | 16.66 (0.006) | |||||||
| Pan y magnitude | 16.41 (0.003) |
* 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 (LANL). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.