2019 solar eclipse spectra

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Re: 2019 solar eclipse spectra

Postby Robin Leadbeater » Thu Jul 11, 2019 6:44 pm

Hi Hamish

Hamish Barker wrote:
What causes the tiny little spectra in the centre of the image?


I suspect these are the zero orders, dispersed into small spectra by the 15 deg prism that was used with the 300 l/mm grating to make the "GRISM"

Cheers
Robin
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Re: 2019 solar eclipse spectra

Postby Hamish Barker » Fri Jul 12, 2019 6:56 am

ah yes, thanks robin.
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Re: 2019 solar eclipse spectra

Postby Robin Leadbeater » Wed Jan 08, 2020 10:15 am

Robin Leadbeater wrote:
Christian Buil wrote:
(note the NTT at the first place, pointing the sun).



Really ? ! That must have been a scary time for the telescope operator. :o I expect someone at the top had to sign for that :lol:


The September 2019 edition of ESO "The messenger" covered this event
http://www.eso.org/sci/publications/messenger/

An interesting report on how they pointed the 4m NTT at the sun during the eclipse
https://www.eso.org/sci/publications/me ... -54-55.pdf
" A detailed procedure was arranged with the La Silla team to ensure the telescope could be used without risk of fire. " !!
There was also a team from the pro-am CAOS group using a (BACHES echelle ?) spectrograph
https://www.eso.org/sci/publications/me ... -47-53.pdf
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
http://www.threehillsobservatory.co.uk
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