All names: ULAS J134725.79+084857.7, WISE J134725.77+084857.7, [HHD2009] SDSS J1347+0848, [SGR2010] J1347+0848, SDSS J134725.92+084858.3, 2MASS J13472585+0848575, WISEA J134725.76+084857.7, WIRED J134725.83+084858.2, WD 1344+090, USNO-B1.0 0988-00235992, Gaia EDR3 3725069017502349952, TIC 379136855, LAMOST J134725.83+084858.2, SDSS J134725.83+084858.2, SDSS J134725.84+084858.3
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 47 25.75 (0.2) | 13 47 25.84 | 13 47 25.83 | 13 47 25.87 (32) | 13 47 26.06 | 13 47 25.84 | |||
| Declination | 08 48 58.54 (0.2) | 08 48 58.29 | 08 48 58.21 | 08 48 58.25 (268) | 08 48 51.48 | 08 48 58.29 | |||
| Spectral type | DA+M | DA+M | DA d | DA+M | |||||
| Effective temperature | [K] | 11433.0 (430) | 8471.0 (88) | ||||||
| log(g) | [cgs] | 8.06 (0.2) | 6.93 (0.2) | ||||||
| Mass | [M☉] | 0.64 (0.1) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 4.03 (0.2) | |||||||
| Distance | [pc] | 248.22 (15) | 278.00 (10) | ||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -112.0045918 (0.3) | -114.0 (1) | ||||||
| Proper motion (declination) | [mas/yr] | 12.14555155 (0.2) | 12.0 (7) | ||||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | WDMS | |||||||
| B magnitude | 18.80 | ||||||||
| V magnitude | |||||||||
| R magnitude | 18.90 | ||||||||
| I magnitude | |||||||||
| J magnitude | 16.13 (0.1) | ||||||||
| H magnitude | 15.76 (0.1) | ||||||||
| K magnitude | 15.19 (0.2) | ||||||||
| u magnitude | 19.36 (0.03) | 19.42 | 19.36 (0.03) | 19.41 | 19.42 (0.04) | ||||
| g magnitude | 18.83 (0.009) | 18.92 | 18.83 (0.009) | 18.91 | 18.92 (0.02) | ||||
| r magnitude | 18.74 (0.01) | 18.92 | 18.74 (0.01) | 18.91 | 18.92 (0.02) | ||||
| i magnitude | 18.13 (0.009) | 18.36 | 18.13 (0.009) | 18.35 | 18.37 (0.02) | ||||
| z magnitude | 17.52 (0.01) | 17.65 | 17.52 (0.01) | 17.64 | 17.67 (0.02) | ||||
| G magnitude | 19.03 (0.02) | ||||||||
| BP magnitude | 18.94 (0.02) | ||||||||
| RP magnitude | 17.79 (0.01) | ||||||||
| Pan g magnitude | 18.91 (0.01) | ||||||||
| Pan r magnitude | 18.86 (0.01) | ||||||||
| Pan i magnitude | 18.30 (0.01) | ||||||||
| Pan z magnitude | 17.77 (0.007) | ||||||||
| Pan y magnitude | 17.49 (0.01) | ||||||||
| E(B-V) | 0.029 | ||||||||
* 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.