Some spectra with the Whoppshel R=30000
Posted: Sat Sep 12, 2020 4:11 pm
Some results with the Whoppshel spectrographe : R=30000.
During this observation, the sky transparency was not very good (some cirus clouds)
This spectrograph is dedicated for telescope with large diameter (>=60cm) but we can still obtain some results with smaller telescopes like a 400mm in diameter.
The limite magnitude with this telescope is about 6 (depend of course of the target type : lines in emission or not, the observation site, the sky quality, etc...)
I use an ATIK 460ex CCD in bin 1x1.
Chi Dra with H and K line (resolution around R=30000)
Very noisy, but with a résolution of 30000
This spectrograph is very stable with wavelength calibration and very acurency
And a merge spectrum of Vega from order #46 to #87 (spectral range from 3920 to 7510 Ă…)
H Alpha line on Gam cas compare with other echelle spectrum (eshel R=110000)
Telurics lines are deeper than with an eShel
During this observation, the sky transparency was not very good (some cirus clouds)
This spectrograph is dedicated for telescope with large diameter (>=60cm) but we can still obtain some results with smaller telescopes like a 400mm in diameter.
The limite magnitude with this telescope is about 6 (depend of course of the target type : lines in emission or not, the observation site, the sky quality, etc...)
I use an ATIK 460ex CCD in bin 1x1.
Chi Dra with H and K line (resolution around R=30000)
Very noisy, but with a résolution of 30000
This spectrograph is very stable with wavelength calibration and very acurency
And a merge spectrum of Vega from order #46 to #87 (spectral range from 3920 to 7510 Ă…)
H Alpha line on Gam cas compare with other echelle spectrum (eshel R=110000)
Telurics lines are deeper than with an eShel