spectro-aras.com

Hello,

sn 2023eoc appeared in the constellation of the dragon and taked with a Newton 0.3 m and Alpy 600.
When it was discovered on April 4, it had a magnitude of 17.4 (z=0.036). It is given for 16.3 today. Host galaxy is anonymous (possible CGCG275-028)
See the comparing spectrum with that obtained by the spectro mounted on the 2.4 m Chinese Lijiang telescope. Apart from a small anomaly on my spectrum around 5850-5900 A that could correspond to the band of blueshifted silicon, the profiles appears substantially similar.
Cheers
Emmanuel

Hello Emmanuel,
I see that you use a Newton f/4 with the Alpy 600. Is it necessary to put an intermediate lens to correct the focal ratio?
Greetings.
Juan José

Hi Juan José,

Input beam focal ratio of Alpy 600 is f/4. So, this spectrograph is fully suitable to work with a f/4 telescope and needs no additional optics that can introduce chromatism.

Regards

Emmanuel

Perfect. Thanks a lot Emmanuel.
Juan José