NGC 4490 (Cocoon Galaxy) in Canes Venatici, with supernova SN
2008ax, the bright 'star' below the vertical indicator. NGC 4490, or ARP
269, is 40-50 million light years away. The apparent magniture of the
larger galaxy is 9.8 and apparent size is 5.8 arc minutes. The smaller
galaxy is NGC 4485 and lies about 24,000 light years away from NGC
4490. Their shapes are distorted by their past gravitational interactions.
Date: 23:00, Mar 22, 2008
Location: New Ringgold PA
Optics: Meade LX200R 12 inch at f/10
Mount: Paramount ME
Camera: SBIG ST-8XME / CFW-8
Guiding: ST-8XME integral guiding chip controlled by Maxim CCD
Exposure: LRGB: Luminance only: 6x6 minutes unbinned
Processing: Image acquisition using CCD Autopilot. Initial processing
was done using Maxim DL with subsequent processing with
Photoshop.
Blue Mountain Vista Observatory New RInggold PA
NGC 4490 with sn
2008ax