venerdì 3 marzo 2017

C/2015 V2 Johnson - Preliminary analysis of Afhro data

Bad news for the C / 2015 V2 (Johnson)? A preliminary analysis of Afrho data,collected from the CARA, shows a situation not exactly happy.
The following diagram shows the Afrho normalized for a zero phase angle and relative windows measure of 25000 km (+/- 2000 km) as a function of distance from the Sun. The latest datas seem to indicate a decline unfortunately.
The comet is now easy to see, we'll see if the next observations confirm this trend.
The observations received so far are of Erik Bryssink, Mauro Facchini (Cavezzo and Celado), Rolando Ligustri, Nicolas Joel, Giannantonio Milani and Adriano Valvasori.

©CARA, Gianatonio Milani


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