All names: TIC 197219153, PG 0850+192, Gaia DR2 660463548040990464, 2MASS J08534135+1901419, LB 8827, Gaia DR3 660463548040990464, SDSS J085341.37+190141.9, Gaia EDR3 660463548040990464, LAMOST J085341.31+190141.9
Note: In the PG catalogue, LB 8827 is cross-identified to both PG 0850+192 and PG 0853+164. The latest is erroneous as PG 0853+164 is LB 8915. This misidentifcation has spread in the literature.
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad |
|---|---|---|---|---|---|---|---|
| Right ascension | 08 53 41.38 (0.05) | 08 53 41.38 | 08 53 41.38 (0.07) | 08 53 41.38 (0.05) | |||
| Declination | 19 01 41.92 (0.03) | 19 01 41.95 | 19 01 41.92 (0.04) | 19 01 41.96 (0.03) | |||
| Spectral type | sdOA | ||||||
| Effective temperature | [K] | ||||||
| log(g) | [cgs] | ||||||
| Mass | [M☉] | ||||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 0.01 (0.06) | -0.07 (0.09) | 0.01 (0.06) | |||
| Distance | [pc] | 70869.27 (277346) | 70921.99 (277652) | ||||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -0.155407883 (0.06) | -0.412494177 (0.2) | -0.155 (0.06) | |||
| Proper motion (declination) | [mas/yr] | -2.034641033 (0.04) | -2.094679774 (0.1) | -2.035 (0.04) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 16.11 (0.08) | ||||||
| V magnitude | 16.23 (0.05) | ||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | 9.55 (0.02) | ||||||
| H magnitude | 9.16 (0.02) | ||||||
| K magnitude | 9.02 (0.02) | ||||||
| u magnitude | 15.91 (0.005) | 15.91 (0.005) | |||||
| g magnitude | 15.96 (0.004) | 16.05 (0.05) | |||||
| r magnitude | 16.43 (0.005) | 16.37 (0.1) | |||||
| i magnitude | 16.73 (0.006) | 16.73 (0.006) | |||||
| z magnitude | 17.01 (0.01) | 17.01 (0.01) | |||||
| G magnitude | 16.20 (0.004) | 16.23 | 16.20 (0.003) | ||||
| BP magnitude | 16.09 (0.004) | 16.03 | |||||
| RP magnitude | 16.42 (0.004) | 16.41 | |||||
| Pan g magnitude | 16.06 (0.003) | ||||||
| Pan r magnitude | 16.43 (0.002) | ||||||
| Pan i magnitude | 16.76 (0.002) | ||||||
| Pan z magnitude | 17.00 (0.004) | ||||||
| Pan y magnitude | 17.16 (0.02) | ||||||
| E(B-V) | 0.027 | ||||||
* 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.