Hi,
After 2 weeks of abstinence
yesterday after arriving at the Observatory andwarming up everything I finally was able to so some spectroscopy again
This little bugger of Comet is mowing quite fast, ~ 1' 38" per hour, so I had to
lock for the guiding on the comet itself, but at mag 8.0 and a lot of its light
taken away by the slit of the spectrograph I had to use 10 second of exposure
time and so I was ablt to guide on a small prt of the core itself but more on
the fuzzy part refelcted outside of the slit.
Spectrograph is LISA with 23µm slit on a AT 8" RC and the QSI520i CCD camera.
In order to know what to look for, I made a search in the WWW " spectrum of a
comet " and found this page
http://www.eso.org/projects/caos/result ... 15-ga1.gif
and by looking at this images
Hale-Bopp
http://www.eso.org/projects/caos/result ... 15-ga1.gif
Hyakutake
http://www.eso.org/projects/caos/result ... 15-ga4.gif
I knew I had nailed it and here is my result
Comet C72009 P1 Garradd
http://astroforo.net/astro/rspec/Garrad ... add-01.jpg
Thanks for reading and looking
regards Rainer