All names: GALEX J114853.3+555217, SDSS J114853.35+555216.9, SDSS J114853.34+555217.2, Gaia DR2 841949693235821056, SDSS J114853.34+555217.0, TIC 137803751, Gaia DR3 841949693235821056, LAMOST J114853.34+555217.0, WD 1146+561, SDSS J114853.35+555217.0, 2MASS J11485334+5552170, Gaia EDR3 841949693235821056
| 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 | 11 48 53.35 (0.04) | 11 48 53.35 | 11 48 53.35 (0.05) | 11 48 53.34 | 11 48 53.35 (0.04) | 11 48 53.14 | |||
| Declination | 55 52 16.82 (0.04) | 55 52 16.98 | 55 52 16.82 (0.05) | 55 52 17.00 | 55 52 16.92 (0.04) | 55 52 13.44 | |||
| Spectral type | DA+K | DA+K | DA K | ||||||
| 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] | 1.23 (0.06) | 1.46 (0.08) | 1.23 (0.06) | |||||
| Distance | [pc] | 815.41 (37) | 685.87 (36) | 313.00 (67) | 815.39 (37) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 2.353114984 (0.05) | 3.101571981 (0.1) | 2.353 (0.05) | |||||
| Proper motion (declination) | [mas/yr] | -6.327786963 (0.06) | -6.43233765 (0.1) | -6.328 (0.06) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | yes | |||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 14.73 (0.03) | ||||||||
| H magnitude | 14.04 (0.03) | ||||||||
| K magnitude | 13.83 (0.04) | ||||||||
| u magnitude | 19.57 (0.03) | 19.50 | 19.57 (0.04) | 19.49 | |||||
| g magnitude | 18.14 (0.006) | 18.10 | 18.11 (0.006) | 18.09 | |||||
| r magnitude | 17.06 (0.005) | 17.03 | 17.05 (0.005) | 17.02 | |||||
| i magnitude | 16.42 (0.005) | 16.41 | 16.41 (0.005) | 16.40 | |||||
| z magnitude | 16.00 (0.007) | 16.00 | 15.99 (0.007) | 15.99 | |||||
| G magnitude | 16.94 (0.009) | 16.96 | 16.94 (0.003) | ||||||
| BP magnitude | 17.76 (0.009) | 17.78 | |||||||
| RP magnitude | 16.02 (0.004) | 16.04 | |||||||
| Pan g magnitude | 18.01 (0.005) | ||||||||
| Pan r magnitude | 17.04 (0.007) | ||||||||
| Pan i magnitude | 16.40 (0.004) | ||||||||
| Pan z magnitude | 16.07 (0.006) | ||||||||
| Pan y magnitude | 15.88 (0.002) | ||||||||
| E(B-V) | 0.021 | ||||||||
* 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.