NGC 4631 and 4656

20160605 NGC4631 4656

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NGC 4631 is also known as the "Whale Galaxy". It is also in the Atlas of Peculiar Galaxies list as ARP 281.

NGC 4627 is the companion galaxy above it.

NGC 4656 and NGC 4657 (the hooked portion) is the galaxy in the lower left. It is also known as the "Hockey Stick


The top of the image is roughly North.

Constellation that they are located in: Canes Venatici

Imaging Site: Little Blair Valley, Ca

For more information on these galaxies:

NGC 4631

NGC 4656

Date: 04 and 05 June 2016

Scope and f/: APM/TMB 152 at f/8, with APM flattener.

Mount: Software Bisque Paramount MX+

Guiding: Orion Starshoot Autuoguider with piggy-backed Mini Borg 45mm f/7.2 guidescope.

Camera: Canon 1D-x, ISO 1600 and raw mode.

Camera temperature: N/A

Camera binning: N/A

Number of sub-images and exposure: 16 5-minute exposures.

Filters: None.

Image Calibration: Dark Subtracted.

Planning, control, capture and processing with: TheSky-X, Nebulosity, PixInsight, and Photoshop.

Images may be used for personal and/or educational use only.