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April 2013 Challenge Entries (The Whale Galaxy)

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#1 Oldfield


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Posted 04 April 2013 - 04:37 AM

Arp 281 - NGC 4631 + 27 - The Whale Galaxy


Welcome to the Cloudy Nights Monthly Challenge Imaging Competition in CCD Imaging & Processing Forum:

This competition is intended to be a fun way for you to improve your imaging abilities and a way for you to see many new images with a variety of equipment. All imagers are welcome and encouraged to enter.

Each month a single object will be selected for the competition by the winner from 2 months previous. Having a one month delay allows voting and selection of the next object and will give a full month's time for entries.

The winner of each competition gets to choose the next object and their image will be included in the Hall of Fame message thread. There are no other prizes.

Please include your imaging details such as location, date, telescope, guiding, exposure time, etc with your submission.


1. Have fun! Support other contestants and be polite with your comments.
2. All entries must be captured within the same imaging season. For example, if the December target is the Orion Nebula, you must use images taken during the current winter, not any other year.
3. Image size is limited to 800x800 pixels and 200k in size.
4. Any equipment is allowed to be used in the images including rental equipment; with the only exception of DSLR, since we have another forum specifically for DSLR.
5. All image taking and processing must be done by your team, including equipment setup.
6. Each person may submit only 1 entry per month. However, you may edit your submission and replace the image with a newer one if you wish using the Edit function.
7. Winners will be selected by forum members, the one which receives the highest number of vote will be the winner.

Please submit your image in this thread, comment can be made in the same thread as well.

#2 Dr Benway

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Posted 08 April 2013 - 11:39 AM

I shot this last night at 3RF Comanche Springs Astronomy Campus, near Crowell, Texas.

OSC: 12x600
Camera: QHY9C
Telescope: Astro-Tech AT8RC
Mount: Takahashi NJP
Date: April 8, 2013

Full resolution here:


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#3 gustavo_sanchez



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Posted 11 April 2013 - 01:40 PM

Hey, I am just a beginner, but why not! :)

Exposure: 42 x 180 seconds
OTA: Meade SN-6 UHTC
Camera: Atik 314L+
Guiding: SSAG
Mount: Sirius EQ-G
Processing: Nebulosity & Startools

This is my image in full resolution:

Whale Galaxy

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#4 sdbodin


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Posted 20 April 2013 - 12:26 AM

Shot on Tuesday night, the only clear night this month, in the middle of galaxy season! Starshoot Pro, 6/10 minutes thru Meade 16 LX200 at f6.7, OAG with SSAG at 4 sec rate.

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#5 Tyler Allred

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Posted 21 April 2013 - 03:49 PM

Hello all... I imaged this galaxy over two nights: March 17th and 18th, of 2013. I used my new homemade "Supernova Astrograph", which was built around a 12.5" Zambuto primary mirror. The attached version is reduced to 50% size.

The full version can be seen ... HERE ...

Camera: Finger Lakes Instrumentation MicroLine ML8300 with FLI CFW-2-7 Filter Wheel
Mount: Paramount ME
Scope: Supernova Astrograph - 12.5
Colors: L:R:G:B
Exposure Time: L=24x10 minutes... RGB=18x5 minutes binned 2x2
Post-Production: MaxIm DL, CCDStack, PixInsight, and Photoshop CS5

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#6 elbee


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Posted 27 April 2013 - 04:46 PM

Arp 281: NGC 4631 and NGC 4627
Scope: TEC200ED @ f/9
Camera: STL-11000M with Astrondon LRGB filters
Mount: AP-1200
Lum: 29x15min (1x1)
RB: 14x15min each (2x2); G: 17x15m (2x2)
March 15-17, Apr. 4-6, 2013
Backyard, Northern, AZ
Processed with CCDStack2 and Photoshop CS5
Data capture with CCDAutoPilot5 and MaximDL
Session planning with CCDNavigator

Posted Image

Higher Res. Whale Galaxy here

Full Frame Including The Hockey Stick

thanks for looking...

#7 elbee


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Posted 01 May 2013 - 01:00 AM

New entry -- too much time elapsed so i can't edit the previous version. decided to enter this collaboration with SL63 AMG (Dave K.), instead. please ignore my previous entry.

Arp 281: NGC 4631 and NGC 4627
Scope: RCOS 12.5" Carbon Fiber Astrograph 2857mm FL @ f/9
Camera: FLI ML8300 with Astrodon LRGB filters
Mount: ASA DDM85X-SL
Lum: 12x15min (1x1)
RGB: 16x15min (1x1)
April 18 & 19, 2013
Williamson, AZ
Processed with CCDStack2 and Photoshop CS5
Data capture with MaximDL
Data Acquisition and Preprocessing: SL63 AMG
Post Processing: elbee

Posted Image

Hi-Res Version Whale here

#8 Oldfield


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Posted 04 May 2013 - 01:37 AM

Contest closed

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