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Astrophotography and Sketching >> Beginning and Intermediate Imaging

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Charlie HeinAdministrator

Reged: 11/02/03

Loc: 26.06.08N, +80.23.08W
Mar13 Intermediate DSO Challenge Submissions! new
      #5738216 - 03/17/13 08:59 AM

This month's subject: the Siamese Twins, NGC 4567 & 4568
Post your entries here.

The rules:

1. All entries must be captured within the same season as the contest. For example, if the subject was Orion Nebula, than any photo captured during this particular winter (or period that it was visible) would qualify for the contest. Entries must be made prior midnight of the last day of the month.

2. Images to be considered for entry to the Challenge must be posted to and visible in the challenge submissions thread. A link to an off-site image without a version that is actually displayed in the Challenge submissions thread will not suffice and is subject to disqualification.

3. Images to be considered for entry to the Challenge must conform in all respects with the site wide image posting requirements. Entrants may elect to set this "entry image" up as a "clickable link" to a higher resolution image if they so desire, and entrants may also elect to instead provide a separate link to such an image if they so choose. If the entrant provides a legally sized and working "clickable link" as their "entry image", that "clickable link" will be included in the polling thread so that voters can examine the high resolution image before voting. However, any "entry images" displayed on the CN site that do not meet the file size and pixel dimension requirements will subject the entry to disqualification. Any questions on this rule? Just ask.

4. Please include the equipment used to take the image. Scope/Mount/Camera/Focal reducers/Barlows...whatever. Also include your location.

5. Please do not post comments in the entries thread. It is just for these wonderful images you all will be submitting.

6. The equipment must be yours. Doesn't matter what it is. 20" RC, ETX70, 2" Tasco or an 8" TMB.

7. No collaborations. You must be the operator. You must setup, align, take the exposures and process them yourself. You can have help mounting that 26" RC if need be. No remote scope images. Unless you own that remote scope and have set it up aligned it and hooked your camera up. Then you can use it. No pay by the hour renta-scope images will be allowed.
*If you have a physical disability which prevents you from being able to set up your equipment, you may still post images in the contests. However, you must own the equipment.

8. Most importantly! Have fun. Support one another's efforts. As we all can learn from this and enjoy each others accomplishments.

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Reged: 07/30/10

Loc: California, USA
Re: Mar13 Intermediate DSO Challenge Submissions! new [Re: Charlie Hein]
      #5743449 - 03/19/13 04:58 PM

Here's my submission for the Siamese Twins.

Taken in the backyard in Menlo Park, CA, USA over two nights from March 15-16, 2013. 23 lights of 1200 seconds at 100 ISO for 7 hours of integration.

127mm Orion Maksutov Cassegrain
Modified and Cooled Pentax K10D
IDAS LPS P2 filter
Losmandy G11 Gemini 2
Guided with Maxim using Orion ST80 with SSAG

Calibrated with Maxim using 12 darks, 64 bias, and 16 flats.
Registered and Stacked with Pix Insight.

Larger on Flickr
Full size on Astrobin

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scholastic sledgehammer

Reged: 03/23/12

Loc: Gainesville, FL
Re: Mar13 Intermediate DSO Challenge Submissions! [Re: SMigol]
      #5749887 - 03/22/13 02:44 PM Attachment (17 downloads)

Wow, this was a tough one. Limited sky to the west due to trees (can't capture a lot after it crosses the meridian), most of town to the east (lots of glow to about 45* above the horizon)...hard to capture photons. For what it's worth (and not much, at that) here's my stab at NGC4567+NGC4568, the "Siamese Twins", with NGC4564 as a (small) bonus:

Location: Gainesville, FL (suburban backyard Bortle orange zone)
Date: 3/13
Imaging scope: Orion ST120 (120mm f5)
Camera: Orion StarShoot G3 color
Mount: CG5-GT
Guiding: SSAG on Orion ST80 driving PHD
Capture: Nebulosity 3
Frames: 10x300s, appropriate darks, flat lights and flat darks
Processing: pre-processing and stacking in Nebulosity 3, initial stretch in FITS Liberator, final processing in PS CS6

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Charlie HeinAdministrator

Reged: 11/02/03

Loc: 26.06.08N, +80.23.08W
Re: Mar13 Intermediate DSO Challenge Submissions! new [Re: SergeC]
      #5770365 - 04/01/13 09:47 AM

Submissions are now closed. Poll will follow shortly. Good luck in the contest!


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