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INDI Library v2.0.6 is Released (02 Feb 2024)

Bi-monthly release with minor bug fixes and improvements

1st light: NGC 7000

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Replied by Jerry Black on topic 1st light: NGC 7000

Well it's there and the image is sharp. NGC 7000 is so large, a mosaic of multiple frames might get you the larger picture, so to speak (I haven't tried mosaics in a long time). A narrow band filter might let you get some more of the nebulosity. I'd move my focus to the wall (below your image in your overcast image) to begin with to see if you can get some detail out of that area.

This nebula is one I"m also working on at the moment. e.g. sciencedowneast.no-ip.ca/zenphoto/index....y-18-EXPTIME_300.jpg
This image was created using a (rather expensive) Triad Ultra Quad Narrow Band Filter so the nebulosity is more pronounced.

It would be interesting to see if you can tease something out of the "wall" area.

Cheers
Jerry

3 years 8 months ago #56483
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Replied by Mohamed on topic 1st light: NGC 7000

Hi Jerry,

Thank you for your reply and advice. I'm waiting for the sky to clear to try again. The mosaic stitching is a very interesting idea that I didn't consider before. Can you suggest software (or more) that is able to perform astrography mosaic stitching?

Thank you
Last edit: 3 years 8 months ago by Mohamed.
3 years 8 months ago #56525

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Replied by Jerry Black on topic 1st light: NGC 7000

As you probably know, Kstars will do mosaic imaging as a component of the scheduler.

Microsoft ICE or PixInsight will let you stitch these images together. There are likely many other packages that do this as well, but I have no experience with them.

Cheers
3 years 8 months ago #56527

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Replied by Mohamed on topic 1st light: NGC 7000

Hi Jerry,

I didn't know that KStars can do mosaic imaging. After reading the scheduler module help (i never used it before), I found that this is a VERY interesting feature that I need to try as soon as I get clear sky (preferably dark :) )

indilib.org/support/tutorials/155-create...saics-with-ekos.html

Really appreciate your help and insight...

Best regards,
Last edit: 3 years 8 months ago by Mohamed.
3 years 8 months ago #56528

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Replied by maxthebuilder on topic 1st light: NGC 7000

Mohamed,
I would strongly suggest to pick some easier target to start. Something smaller (to fit your field of view) and more colorful. Such as Iris or Trifid.
North America is a difficult target.
-- Max S
ZWO AM5. RST-135. AZ-GTI. HEQ5. iOptron SkyTracker.
TPO RC6. FRA400. Rokinon 135 and other lenses.
ZWO ASI2600MC. D5500 modified with UVIR clip-in filter.
ZWO ASI120MM Mini x 2. ZWO 30F4 guider. Orion 50mm guider.
ZWO EAF x 2.
3 years 8 months ago #56532

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Replied by Mohamed on topic 1st light: NGC 7000

Thank you Max for your advice. I did try the mosaic yesterday and I found that it really requires clear dark skies for a long time maybe over days to finish and get a good picture. Yesterday it was broken clouds and I was not able to focus on one target :(

The trifid (M20) is accessible from my backyard and will target it as soon as skies permit :)
3 years 8 months ago #56592

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Replied by alacant on topic 1st light: NGC 7000


hi
Not so much on the processing side, but maybe on the capture?

Get ekos to save fits throughout. The frames can then be taken directly into siril, occupy less disk space (you don't need to convert the images) and you'd be sure that they matched your master files.
HTH
3 years 8 months ago #56599

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Replied by Mohamed on topic 1st light: NGC 7000


The problem with Canon T3i is that the raw size is different from FITS size. I discovered this the hard way. The FITS format follows the camera specifications, but the raw/native format is a few rows extra. This will create a problem when I try to use my library (Darks and Biase frames), as Siril (and I assume Pixinsight as well) will not be able to use those frames. Unfourtnaly I already created a big library to dismiss...
3 years 8 months ago #56605

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Both AstroPixelProcessor and PixInsight handle CR2 files very well. APP is better at creating mosaics than PI but PI is more powerful. Just to give you a few ideas. I use both apps by the way. APP for stacking and light pollution removal, PI for post-processing.


HTH, Wouter
3 years 8 months ago #56607

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Replied by Jose Corazon on topic 1st light: NGC 7000

You may want to focus on The Wall or the Neck of the Pelican with such a long focal length.

I disagree with Max, NGC7000 is actually an easy target, the Trifid is more difficult, if you want to see the reflection nebula, that is.

NGC7000 is very bright, but you may need an Halpha filter to get rid of the light pollution.

This is a stack of 50 x 120s Ha exposures.

Last edit: 3 years 8 months ago by Jose Corazon.
3 years 8 months ago #56611
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Replied by maxthebuilder on topic 1st light: NGC 7000

Well, it's an easy target if one has the right tools.
Looks like the OP has an un-modded DSLR. It's not an easy target for an un-modded DSLR.
Just look at the picture he took - it doesn't show much.
I am actually shooting a mosaic of North America/Pelican right now. With a dual-band L-Enhace filter. With this filter and an ASI294 it's for sure easy.
-- Max S
ZWO AM5. RST-135. AZ-GTI. HEQ5. iOptron SkyTracker.
TPO RC6. FRA400. Rokinon 135 and other lenses.
ZWO ASI2600MC. D5500 modified with UVIR clip-in filter.
ZWO ASI120MM Mini x 2. ZWO 30F4 guider. Orion 50mm guider.
ZWO EAF x 2.
Last edit: 3 years 8 months ago by maxthebuilder.
3 years 8 months ago #56661

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Replied by Jose Corazon on topic 1st light: NGC 7000



Hi Max,

This is one of the very first pictures I took of NGC7000 with an unmodified DSLR from Bortle 8/9 skies. (Below)
Mohamed chose the most featureless part of the nebula with a long focal length, that's one reason why it doesn't show much.
That is why Jerry and I suggested to focus on a more feature-rich region, like the Wall or the Neck of the Pelican. There is more contrast in that region and that would help him to fine-tune.

Actually, with such a long focal length, I would suggest going for the Ring Nebula. Very bright, very colorful, perfect unmodded DSLR target at that magnification.
3 years 8 months ago #56671
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