Spectroscopy, from initiation to performance
The Whoppshel is the ultimate spectroscope in the Shelyak range. A very high resolution instrument (R >25.OOO), it is intended for large instruments (telescopes over 700mm in diameter). A fibre-optic ladder spectro, it is particularly suitable for “exoplanet hunting”.
| Description | Shelyak ref. | Acc. type | Included | Comment |
| FIGU F/6 50μm | PF0008 | Guiding module | Bonnette STANDARD | |
| FIGU F/7.8 50μm | PF0066 | Guiding module | ||
| FIGU F/9 50μm | PF0018 | Guiding module | ||
| FIGU F/7 50μm | PF0067 | Guiding module | ||
| FIGU F/6 105μm | PF0068 | Guiding module | ||
| FIGU F/9 105μm | PF0069 | Guiding module | ||
| FIGU F/7.8 105μm | PF0070 | Guiding module | ||
| FIGU F/7 105μm | PF0071 | Guiding module | Includes ThAr lamp, and flat (Tungsten & LEDs) | |
| eShel calibration module | PF0012 | Calibration module |
| Description | Shelyak ref. | Included |
Material (% reflexion) |
Mirror size |
AR coating |
Comment |
| Optical fibre 50μm 10m | PF0050 | Fibre for the target (star) | ||||
| Optical fibre 50μm 20m | PF0051 | Fibre for the target (star) | ||||
| Optical fibre 50μm 5m | PF0049 | Fibre for the target (star) | ||||
| Optical fibre 200μm 20m | OP0024 | Calibration fiber | ||||
| Optical fibre 200μm 10m | PF0019 | Calibration fiber | ||||
| Optical fibre 105μm, 20m | PF0056 | For maximum flow (weak objects) | ||||
| Optical fibre 105μm, 5m | PF0057 | For maximum flow (weak objects) |
| Description | Shelyak ref. | Included |
Acc. type |
Cooled
|
Comment |
| Camera Atik 460EX Mono | SE0124 | Camera Science | yes | Sensor size, pixel size, sensitivity: the best trade-off for the Whoppshel |
| Description | Shelyak ref. | Included |
Acc. type |
Comment |
| C-CS guiding camera ring | BA0036 | Rings | To be used on the guide rod | |
| C-mout to Tmount ring | BA0034 | Rings | To be used on the guide rod |
The whoppshel is a fibre optic spectrograph with a resolution of R >25.000. The various elements of the spectrograph are mounted on an optical bench.
Here are 2 articles on tests that have been carried out on 2 different telescopes:
By Olivier Garde The Calern plateau, near Nice, is a site of the Observatoire de la Côte d'Azur, which is home to, among other things, the C2PU (Centre Pédagogique Planète et Univers) with 2 twin 1m-diameter telescopes. Every year since 2017, with the 2SPOT team, I've...
You'll find all our Demetra video tutorials on this web page. Demetra is a free software package for processing spectra from the ALPY 600, LISA and eShel spectrographs from the Shelyak Instruments range. Playlist of Demetra tutorials Tutorial #1 Introduction to...
