All names: 2MASS J08451424+5403117, TIC 14431816, GALEX J084514.2+540312, Gaia DR3 1029627532005108224, SDSS J084514.23+540311.6, Gaia DR2 1029627532005108224, Gaia EDR3 1029627532005108224, SDSS J084514.23+540311.8, LAMOST J084514.24+540311.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 45 14.25 (0.07) | 08 45 14.25 | 08 45 14.25 (0.09) | 08 45 14.23 | 08 45 14.25 (0.07) | 08 45 14.23 | |||
| Declination | 54 03 11.45 (0.07) | 54 03 11.57 | 54 03 11.46 (0.08) | 54 03 11.63 | 54 03 11.56 (0.07) | 54 03 11.62 | |||
| Spectral type | DA+M | DA+M | DA+M | ||||||
| Effective temperature | [K] | 13745.0 (35) | 6300.0 (3) | ||||||
| log(g) | [cgs] | 7.83 (0.3) | 10.00 (0.003) | ||||||
| Mass | [M☉] | 0.52 (0.1) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 2.29 (0.1) | 2.24 (0.1) | 2.29 (0.1) | |||||
| Distance | [pc] | 437.15 (19) | 447.05 (25) | 494.00 (77) | 437.14 (19) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 0.855546822 (0.09) | 0.815559701 (0.2) | 0.856 (0.09) | |||||
| Proper motion (declination) | [mas/yr] | -6.748241685 (0.09) | -6.983098729 (0.2) | -6.748 (0.09) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | WDMS | |||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 14.98 (0.04) | ||||||||
| H magnitude | 14.36 (0.05) | ||||||||
| K magnitude | 14.22 (0.06) | ||||||||
| u magnitude | 19.81 (0.04) | 19.75 | 19.78 (0.03) | 19.75 (0.04) | |||||
| g magnitude | 18.70 (0.009) | 18.72 | 18.71 (0.008) | 18.72 (0.02) | |||||
| r magnitude | 17.76 (0.006) | 17.74 | 17.74 (0.006) | 17.74 (0.02) | |||||
| i magnitude | 16.83 (0.005) | 16.82 | 16.83 (0.005) | 16.82 (0.02) | |||||
| z magnitude | 16.26 (0.008) | 16.27 | 16.27 (0.008) | 16.27 (0.01) | |||||
| G magnitude | 17.41 (0.01) | 17.43 | 17.41 (0.003) | ||||||
| BP magnitude | 18.39 (0.01) | 18.39 | |||||||
| RP magnitude | 16.41 (0.004) | 16.42 | |||||||
| Pan g magnitude | 18.58 (0.01) | ||||||||
| Pan r magnitude | 17.74 (0.007) | ||||||||
| Pan i magnitude | 16.82 (0.002) | ||||||||
| Pan z magnitude | 16.38 (0.005) | ||||||||
| Pan y magnitude | 16.15 (0.004) | ||||||||
| E(B-V) | 0.028 | ||||||||
* 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.