Comet C/2015 V2 (Johnson) imaged in February 4th, 2017 is now four months away of reaching its perihelion and has a brightness of 10.5 magnitudes. Its dense tail of dust is 12 arcminutes long, while this image clearly shows around the head and an outer gassy coma with green color of 5 arcminutes that corresponds to a sphere with a diameter of 350000 km.
Daten zum Bild
|Ort||Mayhill, New Mexico|
|Zeitpunkt||04.02.2017 11:31 UT|
|Teleskop/Objektiv||Planewave 17" CDK 1940 mm f/4.5|
|Belichtungszeit||L: 3 × 300 s Bin1+ RGB: 1 x 60 s Bin2|