All names: LAMOST J145614.47+165740.5, GALEX J145614.5+165740, SDSSJ145614.47+165740.6, Gaia DR3 1188049561085487872, Gaia EDR3 1188049561085487872, SDSS J145614.47+165740.5, Gaia DR2 1188049561085487872, SDSS J145614.47+165740.50, SDSS J145614.47+165740.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 56 14.46 (0.07) | 14 56 14.47 | 14 56 14.47 | 14 56 14.46 (0.2) | 14 56 14.48 (0.07) | ||||
| Declination | 16 57 40.43 (0.1) | 16 57 40.56 | 16 57 40.60 | 16 57 40.43 (0.2) | 16 57 40.64 (0.1) | ||||
| Spectral type | He-sdOB | He-sdB | sdBHe | ||||||
| Effective temperature | [K] | 40090.0 (2000) | 45818.0 (42) | ||||||
| log(g) | [cgs] | 5.68 (0.2) | 7.00 (0.05) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.33 (0.1) | 0.28 (0.2) | 0.28 (0.2) | 0.33 (0.1) | ||||
| Distance | [pc] | 3053.65 (1104) | 3607.50 (3026) | 3607.76 (3027) | 3053.44 (1104) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -12.2087228 (0.1) | -12.112 (0.4) | -12.1123499 (0.4) | -12.209 (0.1) | ||||
| Proper motion (declination) | [mas/yr] | -13.25186494 (0.1) | -13.806 (0.6) | -13.80613438 (0.6) | -13.252 (0.1) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 16.67 (0.007) | 16.67 (0.007) | 16.69 (0.02) | 16.67 (0.007) | |||||
| g magnitude | 17.02 (0.005) | 17.02 (0.005) | 17.06 (0.03) | 17.02 (0.005) | |||||
| r magnitude | 17.51 (0.006) | 17.51 (0.006) | 17.51 (0.01) | 17.51 (0.006) | |||||
| i magnitude | 17.86 (0.008) | 17.86 (0.008) | 17.87 (0.02) | 17.86 (0.008) | |||||
| z magnitude | 18.17 (0.02) | 18.17 (0.02) | 18.17 (0.03) | 18.17 (0.02) | |||||
| G magnitude | 17.25 (0.007) | 17.28 (0.003) | 17.28 | 17.25 (0.003) | |||||
| BP magnitude | 17.11 (0.007) | 17.07 (0.02) | 17.07 | ||||||
| RP magnitude | 17.53 (0.01) | 17.53 (0.02) | 17.53 | ||||||
| Pan g magnitude | 17.08 (0.003) | 17.07 (0.003) | |||||||
| Pan r magnitude | 17.50 (0.003) | 17.50 (0.003) | |||||||
| Pan i magnitude | 17.85 (0.005) | 17.85 (0.005) | |||||||
| Pan z magnitude | 18.14 (0.008) | 18.14 (0.008) | |||||||
| Pan y magnitude | 18.36 (0.02) | 18.36 (0.02) | |||||||
| E(B-V) | 0.031 | ||||||||
* 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.