All names: TIC 265350408, Gaia DR3 577615106369494528, SDSS J085422.40+013650.83, SDSS J085422.39+013650.9, Gaia EDR3 577615106369494528, Gaia DR2 577615106369494528, SDSS J085422.40+013650.8, SDSSJ085422.39+013650.9, 2MASS J08542239+0136509
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 54 22.40 (0.03) | 08 54 22.39 | 08 54 22.39 | 08 54 22.39 | 08 54 22.40 (0.05) | 08 54 22.39 (0.03) | 08 54 22.40 | ||||
| Declination | 01 36 50.69 (0.02) | 01 36 50.97 | 01 36 50.97 | 01 36 50.90 | 01 36 50.70 (0.03) | 01 36 50.97 (0.02) | 01 36 50.98 | ||||
| Spectral type | sdOB+MS | PG1159 | sdO | SDO | |||||||
| Effective temperature | [K] | 33158.0 (87) | 32770.0 (149) | ||||||||
| log(g) | [cgs] | 5.00 (0.05) | 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] | 0.35 (0.04) | 0.38 (0.06) | 0.38 (0.06) | 0.35 (0.04) | ||||||
| Distance | [pc] | 2822.87 (343) | 2598.75 (394) | 2598.47 (394) | 2823.26 (343) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 6.59519108 (0.05) | 6.459 (0.1) | 6.458601921 (0.1) | 6.595 (0.05) | 1.0 | |||||
| Proper motion (declination) | [mas/yr] | -17.89841269 (0.03) | -17.878 (0.06) | -17.87768364 (0.06) | -17.898 (0.03) | -16.8 | |||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 15.60 (0.07) | 15.60 (0.07) | |||||||||
| H magnitude | 15.32 (0.09) | 15.32 (0.09) | |||||||||
| K magnitude | 15.28 (0.2) | 15.28 (0.2) | |||||||||
| u magnitude | 15.97 (0.006) | 15.97 (0.006) | 15.97 (0.006) | 15.99 (0.01) | 15.97 (0.006) | 16.00 (0.02) | |||||
| g magnitude | 15.96 (0.004) | 15.96 (0.004) | 15.96 (0.004) | 15.98 (0.01) | 15.96 (0.004) | 15.99 (0.01) | |||||
| r magnitude | 16.12 (0.005) | 16.12 (0.005) | 16.12 (0.005) | 16.13 (0.01) | 16.12 (0.005) | 16.16 (0.01) | |||||
| i magnitude | 16.23 (0.005) | 16.23 (0.005) | 16.23 (0.005) | 16.23 (0.02) | 16.23 (0.005) | 16.23 (0.02) | |||||
| z magnitude | 16.33 (0.009) | 16.33 (0.009) | 16.33 (0.009) | 16.33 (0.02) | 16.33 (0.009) | 16.33 (0.02) | |||||
| G magnitude | 15.99 (0.002) | 16.01 (0.0007) | 16.01 | 15.99 (0.003) | |||||||
| BP magnitude | 16.02 (0.002) | 15.99 (0.004) | 15.99 | ||||||||
| RP magnitude | 15.90 (0.003) | 15.91 (0.003) | 15.91 | ||||||||
| Pan g magnitude | 16.00 (0.007) | 16.00 (0.007) | |||||||||
| Pan r magnitude | 16.13 (0.002) | 16.13 (0.002) | |||||||||
| Pan i magnitude | 16.24 (0.002) | 16.24 (0.002) | |||||||||
| Pan z magnitude | 16.34 (0.002) | 16.34 (0.002) | |||||||||
| Pan y magnitude | 16.38 (0.002) | 16.38 (0.002) | |||||||||
| E(B-V) | 0.033 | ||||||||||
* 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.