spectro-aras.com

Posted: **Tue Feb 16, 2016 5:03 pm**

Hello all,

C/2013 US10 (Catalina) spectrum of the last night.
The brightness is slowly decreasing (Visual magnitude 9.23 JPL Solar System Dynamics)

False colour image

: comete_catalina.png (90.28 KiB) Viewed 4061 times

Spectral profile

: Catalina_profil.png (46.66 KiB) Viewed 4061 times

: Catalina_profil_detail.png (61.88 KiB) Viewed 4061 times

Cheers,

Posted: **Thu Feb 18, 2016 10:24 pm**

Very nice observation, congratulations Jaques! The solar continuum is clear and several Fraunhofer lines are starting to be pronounced. The comet activity is still well appreciable from many emission bands in the spectrum (distance comet-Sun ~ 1.8AU).

Now it should fading rapidly...

Interesting to see how the comets activity changes with distance from Sun on Christian webpage:

http://www.astrosurf.com/buil/us/spe8/comet.htm

Paolo

Posted: **Sat Feb 20, 2016 10:09 am**

Thank you Paolo !
Your link to Christian webpage is very interesting.

Best regards,

spectro-aras.com

C/2013 US10 Catalina

C/2013 US10 Catalina

Re: C/2013 US10 Catalina

Re: C/2013 US10 Catalina