All names: PG 1648+081, GALEX J165110.0+080332, TIC 337322249, Gaia DR3 4442343330624541568, UCAC4 491-067659, WISEA J165110.06+080332.7, WISE J165110.06+080332.7, 2MASS J16511007+0803327, UCAC2 34670981, PG1648+081, Gaia DR2 4442343330624541568
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 16 51 10.07 | 16 51 10.08 (0.02) | ||
| Declination | 08 03 32.70 | 08 03 32.70 (0.01) | ||
| Spectral type | sd | sdOB+F8V | ||
| 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] | 0.70 (0.03) | 0.68 (0.02) | |
| Distance | [pc] | 1419.04 (51) | 1460.92 (48) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -5.747 (0.04) | -5.591 (0.02) | |
| Proper motion (declination) | [mas/yr] | -5.737 (0.04) | -5.85 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.20 (0.02) | |||
| V magnitude | ||||
| R magnitude | 13.97 (0.2) | |||
| I magnitude | ||||
| J magnitude | 12.81 (0.02) | 12.81 (0.02) | ||
| H magnitude | 12.54 (0.04) | 12.54 (0.04) | ||
| K magnitude | 12.40 (0.03) | 12.40 (0.03) | ||
| u magnitude | ||||
| g magnitude | 13.95 (0.02) | |||
| r magnitude | 13.77 (0.05) | |||
| i magnitude | 13.69 (0.01) | |||
| z magnitude | ||||
| G magnitude | 13.72 (0.0003) | 13.71 (0.003) | ||
| BP magnitude | 13.90 (0.003) | |||
| RP magnitude | 13.35 (0.001) | |||
| Pan g magnitude | 13.95 (0.003) | |||
| Pan r magnitude | 13.78 (0.004) | |||
| Pan i magnitude | 13.72 (0.004) | |||
| Pan z magnitude | 13.70 (0.003) | |||
| Pan y magnitude | 13.69 (0.002) | |||
| E(B-V) | 0.074 | |||
* 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.