Author Topic: Hickson compact groups 93 (aka Arp 99) and 94  (Read 714 times)

Offline RickS

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Hickson compact groups 93 (aka Arp 99) and 94
« on: 2018 February 02 00:24:56 »
HCG93 at centre, HCG94 at approx 5 o'clock.  Also quite a lot of IFN.

Captured at SRO, Sep-Nov, 2017

Scope: Ceravolo C300 @ f/4.9 = 1470mm FL
Mount: AP1100
Camera: FLI PL16803
Filters: Astrodon
Guiding: Lodestar II / Tak guide scope
Image scale: 1.26 arcsec/pixel (Drizzled to double res)
Exposures: 27x1200s R, 28x1200s G, 31x1200s B, 51x600s L (37.16 hours)
Processing: PixInsight 1.8.5

Processing credit: Rick Stevenson
Acquisition credit: Scott Johnson, Augusto Hernandez, John Kasianowicz, Daniele Malleo, Jose Mtanous and Rick Stevenson


Offline rdryfoos

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Re: Hickson compact groups 93 (aka Arp 99) and 94
« Reply #1 on: 2018 February 02 05:17:59 »
Nice one Rick.  I think the IFN is pushed just right--any more and the tenor of the image will change and the targets of the image (galaxies) will become secondary.
Rodd

Offline RickS

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Re: Hickson compact groups 93 (aka Arp 99) and 94
« Reply #2 on: 2018 February 02 12:59:22 »
Thanks, Rodd.  I always find that balance difficult to find!

Offline mricard

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Re: Hickson compact groups 93 (aka Arp 99) and 94
« Reply #3 on: 2018 February 02 14:44:24 »
Amazing detail even at full resolution, well done.

Marc

Offline RickS

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Re: Hickson compact groups 93 (aka Arp 99) and 94
« Reply #4 on: 2018 February 02 18:55:30 »
Thanks, Marc!