All names: LAMOST J115654.09-032510.1, GALEX J115654.1-032509, 2MASS J11565407-0325103, SDSS J115654.09-032510.2, UCAC4 433-056537, SDSSJ115654.08-032510.1, SDSS J115654.09-032510.1, Gaia DR2 3601021016145873536, Gaia DR3 3601021016145873536, Gaia EDR3 3601021016145873536, PG 1154-031, TIC 96196021
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 56 54.09 (0.06) | 11 56 54.09 | 11 56 54.08 | 11 56 54.09 (0.08) | 11 56 54.09 (0.06) | 11 56 54.09 | ||
| Declination | -03 25 10.24 (0.04) | -03 25 10.19 | -03 25 10.10 | -03 25 10.24 (0.04) | -03 25 10.18 (0.04) | -03 25 10.20 | ||
| Spectral type | sdOB | sdBO | SD_auto | |||||
| Effective temperature | [K] | 32877.0 (236) | ||||||
| log(g) | [cgs] | 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] | -0.00 (0.07) | -0.10 (0.1) | -0.10 (0.1) | ||||
| Distance | [pc] | |||||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -0.858306578 (0.07) | -0.961 (0.2) | -0.96139366 (0.2) | -0.858 (0.07) | -1.0 | ||
| Proper motion (declination) | [mas/yr] | -3.481189812 (0.05) | -3.438 (0.08) | -3.438436059 (0.08) | -3.481 (0.05) | -4.4 | ||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 16.32 (0.01) | |||||||
| V magnitude | 16.35 (0.1) | |||||||
| R magnitude | 16.37 (0.2) | |||||||
| I magnitude | ||||||||
| J magnitude | 16.43 (0.09) | 16.43 (0.09) | ||||||
| H magnitude | 16.39 (0.2) | 16.39 (0.2) | ||||||
| K magnitude | 15.48 | |||||||
| u magnitude | 16.07 (0.005) | 16.07 (0.005) | 16.10 (0.02) | |||||
| g magnitude | 16.22 (0.004) | 16.22 (0.004) | 16.25 (0.02) | |||||
| r magnitude | 16.59 (0.004) | 16.59 (0.004) | 16.61 (0.01) | |||||
| i magnitude | 16.82 (0.005) | 16.82 (0.005) | 16.84 (0.02) | |||||
| z magnitude | 17.04 (0.01) | 17.04 (0.01) | 17.09 (0.02) | |||||
| G magnitude | 16.41 (0.003) | 16.43 (0.001) | 16.43 | 16.41 (0.003) | ||||
| BP magnitude | 16.32 (0.003) | 16.28 (0.005) | 16.28 | |||||
| RP magnitude | 16.53 (0.005) | 16.53 (0.006) | 16.53 | |||||
| Pan g magnitude | 16.30 (0.004) | 16.30 (0.004) | ||||||
| Pan r magnitude | 16.62 (0.001) | 16.62 (0.001) | ||||||
| Pan i magnitude | 16.87 (0.003) | 16.87 (0.003) | ||||||
| Pan z magnitude | 17.07 (0.007) | 17.07 (0.007) | ||||||
| Pan y magnitude | 17.17 (0.008) | 17.17 (0.008) | ||||||
| E(B-V) | ||||||||
* 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.