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jeffpkamp
sage


Reged: 01/11/13

Re: Astrophotos from my Nexstar 6se new [Re: ben2112]
      #5925402 - 06/17/13 12:22 PM

Thanks for the touch up's tel. The top image without distortion (the trifid) lacks the stacking artifacts because I used the 3x drizzle and custom rectangle when I stacked it. The distortion is still there, but I've essentially cropped it out. I did a similar thing with the lagoon nebula on you touched up, but didn't post it. But I like what the high pass filter did with the image the inner nebula looks much better. I am currently working on my post processing package, as GIMP just isn't doing every thing that could be done.

As for Vignetting, Here is a master flat from my scope with the 6.3 LIke maverick said, I just subtract that out with Deep Sky Stacker. Never noticed it with my eyes, but I'm not really looking for it.

As for why I'm getting good results from the 6se mount, I don't know. Auto guider works great, just need to have it close to balanced. Without autoguiding the tracking is all over the place, making 10-20 second subs a quite difficult

http://i15.photobucket.com/albums/a389/jeffpkamp/MasterFlat_ISO800.jpg


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RealSorin
super member


Reged: 10/22/12

Loc: Denver, CO
Re: Astrophotos from my Nexstar 6se new [Re: Maverick199]
      #5928201 - 06/18/13 08:10 PM

Great image!

I have a C6 SCT OTA and just bought an Orion Magnificent Mini Autoguider - How did you mount your guider to the c6? The Orion uses their standard finder scope shoe, which the Celestron scope doesn't accommodate. I have mine on a camera adapter, but there's too much slop in that setup.


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jeffpkamp
sage


Reged: 01/11/13

Re: Astrophotos from my Nexstar 6se new [Re: RealSorin]
      #5928933 - 06/19/13 10:21 AM

I took the red dot mount out and mounted it using only 1 of the screw holes. It's very tight, so I don't get any flexure that I can tell. I then super glued the red dot mount onto the scope (It doesn't need to hold much weight). This survived falling off of my mount recently, so I'd say the super glue is doing its job nicely :/.

I found this a better alternative to the idea of drilling a hole into my OTA.

I am sure there are people on here who have a better way of mounting it than I am using.


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RealSorin
super member


Reged: 10/22/12

Loc: Denver, CO
Re: Astrophotos from my Nexstar 6se new [Re: jeffpkamp]
      #5931833 - 06/20/13 06:33 PM

FYI, I learned through another thread I started on the Cats and Casses forum that Orion makes a separate mount shoe specifically for SCTs. I have one on order.

http://www.telescope.com/Orion-Schmidt-Cassegrain-Finder-Scope-Base/p/7215.ut...


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setiv2
member


Reged: 03/28/13

Re: Astrophotos from my Nexstar 6se new [Re: RealSorin]
      #6200465 - 11/17/13 06:30 PM

I'm using a nexstar 8se on a homemade wedge, off axis guider, and a webcam as the guiding camera. I have been able to get 10 min subs as well. Normally limited to 5 or 6 min subs due to light pollution though. I found having the scope slightly out of balance such that the gears are fighting gravity gave the best result. Forward heavy in the east and back heavy in the west. I will post some pictures shortly. I am very happy with how capable the nexstar 6/8se mount is during guiding.

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setiv2
member


Reged: 03/28/13

Re: Astrophotos from my Nexstar 6se new [Re: Ekyprotic]
      #6201211 - 11/18/13 08:27 AM Attachment (34 downloads)

I have the 8se on a homemade wedge and can guide up to ten minutes. Here are some pics from it.

10 x 600" subs. M76 Little Dumbbell Nebula

Edited by setiv2 (11/18/13 08:28 AM)


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setiv2
member


Reged: 03/28/13

Re: Astrophotos from my Nexstar 6se new [Re: setiv2]
      #6201216 - 11/18/13 08:30 AM Attachment (30 downloads)

M57 Ring Nebula. 15 x 120" Subs

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setiv2
member


Reged: 03/28/13

Re: Astrophotos from my Nexstar 6se new [Re: setiv2]
      #6201217 - 11/18/13 08:31 AM Attachment (20 downloads)

Star Field near the star Caph. 6 x 600" subs

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setiv2
member


Reged: 03/28/13

Re: Astrophotos from my Nexstar 6se new [Re: setiv2]
      #6201220 - 11/18/13 08:32 AM Attachment (25 downloads)

Horsehead Nebula. 13 x 300" subs

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azure1961p
Postmaster
*****

Reged: 01/17/09

Loc: USA
Re: Astrophotos from my Nexstar 6se new [Re: Maverick199]
      #6203636 - 11/19/13 12:22 PM Attachment (21 downloads)

Here's a rebalance of the color - in both there's a shift into the blue that makes the redder areas shift completely off the red when its brought to a generalized hue that covers the most ground properly.

Pete

Edited by azure1961p (11/19/13 12:23 PM)


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azure1961p
Postmaster
*****

Reged: 01/17/09

Loc: USA
Re: Astrophotos from my Nexstar 6se new [Re: azure1961p]
      #6203638 - 11/19/13 12:24 PM Attachment (19 downloads)

And the lagoon---

Edited by azure1961p (11/19/13 12:24 PM)


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jeffpkamp
sage


Reged: 01/11/13

Re: Astrophotos from my Nexstar 6se new [Re: azure1961p]
      #6204407 - 11/19/13 06:57 PM

that's a nice ring nebula setiv. I took a couple of shots at that target, but my collimation was off because I had dropped my OTA (and myself) while at a dark site. I'll have to see if I can get more detail out of it.

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setiv2
member


Reged: 03/28/13

Re: Astrophotos from my Nexstar 6se new [Re: jeffpkamp]
      #6204425 - 11/19/13 07:04 PM

Thanks jeffpkamp! I haven't been to a dark site yet. Just my super light polluted backyard. Can't wait to travel to a dark site. I'll have to remember to bring a screw driver incase my collimation happens to drop out too!

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Scottobservatory
member


Reged: 12/11/08

Loc: Florida and New Mexico
Re: Astrophotos from my Nexstar 6se new [Re: jeffpkamp]
      #6230294 - 12/02/13 09:25 PM

Congratulations on the wonderful photos. I hope I will be even half as successful as you when I'm ready to try astrophotography. Beautiful!!

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