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NexStar Imaging

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#1 Alex Post

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Posted 31 May 2010 - 12:09 PM

I have an idea of having single thread with all image taken by CN NexStar users. Please add yours with short descriptions if possible. I will start with my "mosaic" of images that I have taken in the past year.

Please NOTE that the most use of this thread will be if we keep it only to the images, not the discussion how images were made. We have plenty of other threads where this is discussed.

I will add links and references to the useful resources in this first message. Thanks.

1. Samir, CN Contributor, page: scroll to the very bottom for his articles. Samir's AP guides CN Contributor.
2. Jerry Lodriguss, CN Contributor, CD-ROM book: note, plenty of information is available on-line for free, just click on his books. Jerry Lodriguss books


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#2 Alex Post

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Posted 31 May 2010 - 12:12 PM

Well, the first one is not mine, but it inspired me to do a planetary nebula (M57). I thought these objects were not suitable for NexStar, but Ron (astronomania) proved otherwise.

M57 4X30 sec Jpeg; In camera dark subtraction; Stacked in Registax V5

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#3 Alex Post

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Posted 31 May 2010 - 12:15 PM

This Saturn done by Naturlich earlier this month:

Saturn-Titan 23/05/10
Nexstar SLT 130
3x ED Barlow
Modified Logitech Fusion
5 minute AVI (1280x960 5fps no noise reduction)
Captured with IC Capture and stacked using Registax 5.1
Minor enhancement in Photoshop CS4 to enhance Titan a touch

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#4 Alex Post

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Posted 31 May 2010 - 12:19 PM

This image by Tel from 2007 shows challenges of combining mosaics. As many of you are aware Tel is an inspiration to many good things on this forum.

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#5 Alex Post

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Posted 31 May 2010 - 12:21 PM

This was my attempt to build on Tel's previous work. Note, that alignment is not perfect as clearly visible on top of the Moon, but I would say it's a substantial improvement. 100 tiles. NexStar 8SE, Hyperion 8mm EP projection, Canon XSi. Each tile recorded for about 40 seconds at 20 frames per second. Each tile processed with Registax 5. All tiles combined in Photoshop.

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#6 Alex Post

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Posted 31 May 2010 - 12:27 PM

Here is the "Plato challenge", also started by Tel. It took two months to catch the Moon at the right time and right sky conditions.

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#7 Alex Post

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Posted 31 May 2010 - 12:31 PM

Moon and Venus by K W TONG:
On Sunday evening around 7.30 pm, May 16, here in Hong Kong, my club members and I saw the Moon occulted Venus. The image below taken with my C6 shows Venus just after the occulation.

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#8 Alex Post

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Posted 31 May 2010 - 12:35 PM

Now, switching back to last year, when I was doing M31. 90x 1min images, f/6.3FLR, NexStar 8SE, Canon XSi, ISO 1600, processed in DSS. Only 30 were selected by DSS.

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#9 Alex Post

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Posted 31 May 2010 - 12:44 PM

Switching to the great M42.

Fuzz made this image last October:
M42, 8 x 30-sec:

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#10 Alex Post

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Posted 31 May 2010 - 12:46 PM

Here is my attempt that turned into a paper. This is a combination of about 1,300x 10sec shots at ISO 1600. 8SE, Canon XSi, Hutech IDAS LPS 2" filter.

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#11 Alex Post

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Posted 31 May 2010 - 12:54 PM

This is Needle Galaxy (NGC4565), that was submitted to monthly intermediate contest on CN forum. It did not win anything, but it pushed the limit of what can be done with 8Se.

NexStar 8SE, f/6.3 FLR, Canon XSi. 600x15 sec frames, 200 stacked in DSS. PS3 curves. Data from March 22.

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#12 NeoZavier

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Posted 31 May 2010 - 12:55 PM

Here are mine with the NexStar 6 SE and the Philips WebCam.

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#13 NeoZavier

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Posted 31 May 2010 - 12:56 PM

Here is one.

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#14 Naturlich

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Posted 31 May 2010 - 12:57 PM

Wierdness I was thinking exactly the same. Since I'm in the market for a new scope I thought it would be great is we could post pics from everyones scopes to have a rough idea of what they are capable off.

Here's my Moon compsite aswell:
Posted Image
 

#15 NeoZavier

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Posted 31 May 2010 - 12:57 PM

Saturn with the Nexstar 6 SE.

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#16 Alex Post

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Posted 31 May 2010 - 01:02 PM

M81, 457x 10sec shots. f/6.3 FLR

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#17 Alex Post

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Posted 31 May 2010 - 01:05 PM

M82

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#18 Peter9

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Posted 31 May 2010 - 01:14 PM

Afocal shot of the Moon with the 6se taken 31/3/2009

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#19 Alex Post

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Posted 31 May 2010 - 01:22 PM

Not the best mosaic, but certainly one of my personal favorites, the Pleiades, M45. mosaic of two images, Top and Bottom. Each piece made with 10x 30 sec samples. NexStar 8SE, f/6.3FLR, Canon 350D. I will definitely come back to this object later this year.

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  • 3838932-M45_pano_lvl3_small.jpg

 

#20 Alex Post

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Posted 31 May 2010 - 01:27 PM

M57, crop from full frame, very similar to Naturlich's Ring Nebula above. This one is done with about 130x 10sec out of pool of 200. NexStar 8SE, Canon XSi, Hutech IDAS LPS 2". Stacked in DSS, levels in Phothoshop.

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#21 Alex Post

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Posted 31 May 2010 - 01:32 PM

Saturn this month. 8SE, EP projection with Hyperion Baader 8mm, Canon XSi. Recorded with movrec_eos, processed with Registax 5.

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#22 Alex Post

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Posted 31 May 2010 - 01:33 PM

Jupiter last year. Unlike almost all other images on this forum, this was done with Apple iSight camera (not Canon). EP projection with Hyperion 8mm EP. I used freeware image package (BTV?) to record this on August 6th of 2009. Processed with Registax 4.

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#23 Alex Post

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Posted 31 May 2010 - 01:41 PM

Here is a comparison between 8SE image (taken from Earth :) ) and the LRO close ups. The idea was to determine resolution of 8SE in fair seeing conditions. The conclusion was, 2km is quite doable, 1.5km is possible, 1km is still yet to be proven.

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#24 Alex Post

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Posted 31 May 2010 - 02:16 PM

Here is M10 from July of 2009. NexStar 8SE, f/6.3FLR, Canon 350D. 18x 30sec frames processed in DSS. 9 out of 18 selected for stacking. Heavy use of Carboni's astro tools

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#25 Alex Post

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Posted 31 May 2010 - 02:34 PM

Not the final image, but I keep this one in my "favorites" folder anyway. This is from one of the "tutorials" we have buried somewhere on this forum :)

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