sn2023eoc

[E Soubrouillard]

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

[Juan Jose Pueyo]

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

[E Soubrouillard]

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

[Juan Jose Pueyo]

Perfect. Thanks a lot Emmanuel.
Juan José