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My Deep Space Gallery

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#1 stefan5292

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Posted 10 February 2019 - 01:14 PM

I'm going to use this topic to post various deep space objects that I'm photographing from my backyard. Most of them are open clusters since they are the most easy to capture in heavy light pollution. All images are taken through a 10'' dobsonian and ZWO ASI120MC camera. I had luck with two evening with very good seeing so I stayed several hours in the cold to capture what I'm gonna present in this post.

 

1. Mu Cephei

One of the largest known star, surrounded by several small companions. The image is obtained after stacking 50 frames with 500ms exposure.

https://www.flickr.c...N04/40064060523

 

2. M40 - Winnecke 4

Nothing too special, just a nice double star. 10 frames x 500ms exposure.

https://www.flickr.c...N04/46327148854

 

3. M81 - Bode's Galaxy

Far from the best one you'll see but from heavy light pollution area and static mount is probably the best I can obtain. 650 frames x 1s exposure. I also wanted to capture the Cigar Galaxy but there was no sign of it.

https://www.flickr.c...N04/46124867905

 

4. NGC2169 - The '37' Cluster

A nice colorful cluster just above Orion. 300 frames x 250ms exposure.

https://www.flickr.c...N04/46124867625

 

5. NGC188 - Polarissima Cluster

Surprisingly crowded cluster, pretty hard to see 'live' but due to being close to the North Celestial Pole I was able to use 2s exposure without star trailing and captured many stars. The resulting image is a mosaic as the cluster is too large to fit on the camera's sensor. I captured separate areas from the cluster and loaded all the frames in DeepSkyStacker. Surprisingly it was able to do the mosaic automatically. Pretty amazing what the little program can do! Total frames used for the cluster: 420 x 2s exposure

https://www.flickr.c...N04/33175788148

 

6. M35

This is my favorite cluster so far. The process of capturing is the same as NGC188. For this one I used 4560 frames x 350ms exposure.

https://www.flickr.c...N04/46137380735

 

To be continued...


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#2 schmeah

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Posted 11 February 2019 - 06:10 AM

Nice work. Vibrant color on those clusters.

 

Derek


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#3 stefan5292

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Posted 12 February 2019 - 12:36 PM

7. M46 and NGC2438

Again a mosaic made by capturing several areas of the cluster. The big surprise was when I saw NGC2438 in the stacked image, faint but it's there. There was no sign of it on the individual frames or on my laptop's screen when recording. The strange thing is that this nebula is located in the heaviest polluted part of the sky and has a higher magnitude than other planetary nebulae (owl, cat's eye) which I haven't been able to find. Now after this experience I'm getting hopes that if at least I can find the exact location of them and take several thousands of frames, after stacking them the nebulae will be visible.

This image is obtained after stacking 2790 frames x 300ms exposure

https://www.flickr.c...N04/32132173837


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#4 stefan5292

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Posted 15 February 2019 - 12:38 PM

8. NGC 225 - The Sailboat Cluster

2100 frames x 400ms exposure

https://www.flickr.c...N04/40139907363

 

9. NGC 659 - The Yin-Yang Cluster

A nice small and very dense cluster. 980 frames x 460ms exposure

https://www.flickr.c...N04/40139906843


Edited by stefan5292, 15 February 2019 - 12:39 PM.


#5 stefan5292

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Posted 19 February 2019 - 01:45 PM

10. NGC7789 - The Caroline's Rose cluster

A very colorful cluster with many stars. 1940 frames x 575ms exposure

https://www.flickr.c...N04/47147945511

 

11. M52

Another one with many stars. Cassiopeia's region is extremely populated with stars, even when not focusing on a cluster you can see thousands of them. Very beautiful! 1200 frames x 500ms exposure

https://www.flickr.c...N04/46413679104



#6 APshooter

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Posted 19 February 2019 - 06:07 PM

All very beautiful.
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#7 stefan5292

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Posted 24 February 2019 - 12:03 PM

12. NGC129

1240 frames x 450ms exposure

https://www.flickr.c...N04/32256239147

 

13. NGC2362

1130 frames x 500ms exposure

https://www.flickr.c...N04/46283924405

 

14. NGC637

570 frames x 420ms exposure

https://www.flickr.c...N04/46283923225



#8 DaveB

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Posted 24 February 2019 - 06:01 PM

Some of the clusters make me feel like I'm in a planetarium. Very cool!



#9 stefan5292

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Posted 01 March 2019 - 01:22 PM

15. The Cigar Galaxy (M82)

It is like the best day ever...:)) For the past days I've been angry with DeepSkyStacker for failing to align the frames with M82. They were too noisy and no matter what settings I used it failed to align the stars. If I used a high detection threshold it stacked only 1 or maximum 5 frames. With low threshold it considered noise as stars and the result was always a noisy black image.Then I came with the idea of getting rid of the noise before stacking, so I went to PIPP and when debayering the original video I increased the input gain to 3.0 and enabled median noise filter. The resulting frames were successfully stacked and the resulting image was surprisingly good. For this one I've used 1030 frames x 1s exposure.

https://www.flickr.c...N04/32307033577

 

I've tried the same settings with Orion Nebula and the result came much better than the previous one when a much lower amount of frames were stacked (also the seeing was better the second time I've recorded the nebula).



#10 stefan5292

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Posted 07 March 2019 - 12:43 PM

16. M93

1550 frames x 350 ms exposure

https://www.flickr.c...N04/40345640373

 

17. M47

1300 frames x 400 ms exposure

https://www.flickr.c...N04/33434911558

 

18. M41

1800 frames x 300 ms exposure

https://www.flickr.c...N04/46395643175

 

19. M34

960 frames x 330 ms exposure

https://www.flickr.c...N04/46395644275




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