spectro-aras.com

Posted: **Sat Jul 25, 2015 12:08 pm**

Jacques comet from Pic du Midi observatory (60 cm F/3.5 telescope + Alpy600). Observers: Valérie Desnoux, Christian Buil :

Apparent spectrum:

After solar spectrum division:

(note UV CN band)

Christian

Posted: **Mon Jul 27, 2015 10:07 pm**

Christian, Valerie... always on top!

Very nice spectrum of a faint (for spectroscopy) comet! In the reflectance spectrum the CN 3875 and C3 around 4050 A bands are clearly visible. Perhaps also the bandhead of C2 at 5165 A. The comet is active!

Paolo

spectro-aras.com

C/2015 F4 (Jacques)

C/2015 F4 (Jacques)

Re: C/2015 F4 (Jacques)