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M58, 87, 89, and 90 – Galaxies in Virgo – DHL Comet Hunter, Nikon D610a

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#1 jgraham

jgraham

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Posted 11 April 2021 - 05:07 PM

Telescope: ES Comet Hunter MN6 at f/4.8, Orion Atlas EQ-G
Camera: Baader modified Nikon 610
Filter: High Point 2” IR Blocking Filter
Guide scope: Williams Optics 50mm, ASI290MM mini, PHD
Exposure: 31x120sec, ISO 200, saved as RAW
Darks: Internal (Long Exposure Noise Reduction On)
Flats: 32×1/4sec, tee shirt flats taken at dusk
Average Light Pollution: Red zone, Bortle 8, poor transparency, moonlight
Lensed Sky Quality Meter: 18.3 mag/arc-sec^2
Stacking: Mean with a 2-sigma clip.
White Balance: Nebulosity Automatic
Software: Backyard Nikon, Nebulosity, Deep Sky Stacker, Photoshop

 

M58 87 89 90  (3-20-2021) 1200x900-1j.jpg

 

This wide field image taken near the center of the Virgo Galaxy Cluster includes M89 near the center of this field, M58 to the lower left, M90 to the upper left, and M87 (Virgo A) to the right. Below M89 is a nice pair of galaxies; NGC 4551 (upper left) and 4550 (lower right).


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