All names: Gaia DR3 1592412936639159424, PG1455+501, 2MASS J14565772+4953107, SDSS J145657.73+495310.7, GALEX J145657.5+495310, Gaia EDR3 1592412936639159424, CBS 298, SDSS J145657.72+495310.7, Gaia DR2 1592412936639159424, PG 1455+501, TIC 309807601, UCAC2 48055700, UCAC4 700-056101, SBSS 1455+500
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 56 57.73 (0.02) | 14 56 57.74 | 14 56 57.70 | 14 56 57.73 (0.03) | 14 56 57.73 (0.02) | 14 56 57.73 | |||
| Declination | 49 53 10.65 (0.02) | 49 53 10.78 | 49 53 10.10 | 49 53 10.65 (0.03) | 49 53 10.79 (0.02) | 49 53 10.80 | |||
| Spectral type | sdOB+MS | sdB+F2?kA2 | SD_auto | ||||||
| Effective temperature | [K] | 33401.0 (1028) | 31073.0 (134) | ||||||
| log(g) | [cgs] | 5.16 (0.2) | 5.00 (0.002) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.52 (0.03) | 0.46 (0.04) | 0.46 (0.03) | 0.52 (0.03) | ||||
| Distance | [pc] | 1933.24 (98) | 2161.23 (163) | 2161.02 (163) | 1933.11 (98) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -1.887039615 (0.03) | -1.613 (0.05) | -1.613194623 (0.05) | -1.887 (0.03) | 1.6 | |||
| Proper motion (declination) | [mas/yr] | -9.139575179 (0.03) | -9.106 (0.06) | -9.106135564 (0.06) | -9.14 (0.03) | -8.7 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.31 (0.08) | ||||||||
| V magnitude | 15.31 (0.05) | ||||||||
| R magnitude | 15.35 (0.06) | ||||||||
| I magnitude | |||||||||
| J magnitude | 14.93 (0.04) | 14.93 (0.04) | |||||||
| H magnitude | 14.76 (0.06) | 14.76 (0.06) | |||||||
| K magnitude | 14.56 (0.08) | 14.56 (0.08) | |||||||
| u magnitude | 15.13 (0.004) | 15.13 (0.004) | 15.13 (0.004) | 15.15 (0.01) | |||||
| g magnitude | 15.19 (0.004) | 15.19 (0.004) | 15.19 (0.004) | 15.22 (0.02) | |||||
| r magnitude | 15.36 (0.004) | 15.36 (0.004) | 15.36 (0.004) | 15.38 (0.02) | |||||
| i magnitude | 15.46 (0.004) | 15.46 (0.004) | 15.46 (0.004) | 15.48 (0.02) | |||||
| z magnitude | 15.58 (0.006) | 15.58 (0.006) | 15.58 (0.006) | 15.58 (0.02) | |||||
| G magnitude | 15.23 (0.002) | 15.25 (0.0007) | 15.25 | 15.23 (0.003) | |||||
| BP magnitude | 15.24 (0.002) | 15.21 (0.004) | 15.21 | ||||||
| RP magnitude | 15.14 (0.002) | 15.15 (0.001) | 15.15 | ||||||
| Pan g magnitude | 15.23 (0.002) | 15.23 (0.002) | |||||||
| Pan r magnitude | 15.37 (0.002) | 15.37 (0.002) | |||||||
| Pan i magnitude | 15.48 (0.002) | 15.48 (0.002) | |||||||
| Pan z magnitude | 15.58 (0.002) | 15.58 (0.002) | |||||||
| Pan y magnitude | 15.65 (0.007) | 15.65 (0.007) | |||||||
| 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.