Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

Astro Video Image Gallery

  • Please log in to reply
7570 replies to this topic

#3176 Dwight J

Dwight J

    Gemini

  • *****
  • Posts: 3255
  • Joined: 14 May 2009
  • Loc: Lethbridge, Alberta, Canada

Posted 19 October 2015 - 11:26 AM

Nice planetaries an OC's Don.  I always liked the Kiwi Nebula (1501) and Pearl on Tongue (1470).  Star colours nicely preserved.  I haven't done a lot of EAA lately as I have been doing some DSLR imaging.  



#3177 DonBoy

DonBoy

    Apollo

  • *****
  • Posts: 1242
  • Joined: 06 Sep 2007

Posted 20 October 2015 - 11:09 AM

ASI224 at 60sec exposure.   C8@f3 - Idas LPS unguided - 60sec x 9 stacks at gain 240

 

NGC7635-60SX9X240G

22122333218_95498f8a25_b.jpg


  • geminijk and Astrojedi like this

#3178 DonBoy

DonBoy

    Apollo

  • *****
  • Posts: 1242
  • Joined: 06 Sep 2007

Posted 20 October 2015 - 11:14 AM

ASI224 at 60sec exposure.   C8@f3 - Idas LPS unguided - 60sec x 9 stacks at gain 235

 

M1=60SX9X235G

 

22284014086_8390e066d9_b.jpg


  • CharlesC and Astrojedi like this

#3179 Stargazer3236

Stargazer3236

    Soyuz

  • ***--
  • Posts: 3733
  • Joined: 07 Aug 2010
  • Loc: Waltham, MA

Posted 22 October 2015 - 11:23 AM

DonBoy, I have the ASI224MC. How do I go about getting good pics like you? Are you taking subs and then stacking in DSS?

 

Dave



#3180 DonBoy

DonBoy

    Apollo

  • *****
  • Posts: 1242
  • Joined: 06 Sep 2007

Posted 22 October 2015 - 03:56 PM

DonBoy, I have the ASI224MC. How do I go about getting good pics like you? Are you taking subs and then stacking in DSS?

 

Dave

 

 

 

Dave,

 

I use Fire Capture as the camera software along with AstroToaster for stacking.   AstroToaster uses DSS as it's engine.  arks will be needed to combat the ampglow.



#3181 DonBoy

DonBoy

    Apollo

  • *****
  • Posts: 1242
  • Joined: 06 Sep 2007

Posted 22 October 2015 - 04:00 PM

Here are a couple of longer sub exposures from last night with the ASI224.

 

NGC7814-150SX4X140G

 

NGC7814-150SX4X140G.jpg

 

NGC7331-60SX10X135G

 

 

Attached Thumbnails

  • NGC7331-60SX10X135G.jpg


#3182 geminijk

geminijk

    Apollo

  • *****
  • Posts: 1122
  • Joined: 03 Apr 2008
  • Loc: Murfreesboro, TN

Posted 22 October 2015 - 05:19 PM

great shots Don!

 

john



#3183 Dom543

Dom543

    Apollo

  • *****
  • Posts: 1099
  • Joined: 24 Oct 2011

Posted 22 October 2015 - 06:52 PM

Helix Nebula and Andromeda Galaxy with APU-1

 

20151021_022604.jpg

Integration=1min, Gain=52, Baader 7nm H-alpha filter, Meade 10" SCT at f2.0.

This Southern object is challenging as it is very low over the horizon from Seattle (Lat.47N).

The OTA is almost horizontal, when shooting at it.

 

 

20151021_052251.jpg

Integration=x256 (4sec), Gain~42, Samyang 135mm lens at f2.0.

About a dozen 4sec frames were mean-stacked in AstroLive.

The sepia tone is a result of a red filter combined with very low color saturation setting in the frame grabber driver. The red filter brings out the dust lanes nicely. In this case, it's a poor man's substitute for an IR-pass filter.

 

The bright background of the CN webpage suppresses the fainter outer regions of the galaxy.

In a darker environment and against a dark background the galaxy extends to the edges of the image frame.

 

Both captures were taken from off I-90 East of Seattle, outside of the coastal cloud cover.

 

For more info, questions and discussion please see this thread http://www.cloudynig...-1-first-light/.

 

Clear Skies!

--Dom


Edited by Dom543, 22 October 2015 - 07:35 PM.

  • DonBoy, geminijk, TL2101 and 4 others like this

#3184 JonNPR

JonNPR

    Apollo

  • *****
  • Posts: 1469
  • Joined: 04 Mar 2013
  • Loc: Oregon

Posted 23 October 2015 - 02:53 AM

That is beautiful work, Dom!

 

Jon



#3185 Astrojedi

Astrojedi

    Soyuz

  • *****
  • Posts: 3970
  • Joined: 27 May 2015
  • Loc: SoCal

Posted 23 October 2015 - 11:34 AM

Battled the elements (moon, heavy dew, edit: and LP) last night to capture the M31. This is a single 15s frame with the Ultrastar mono and the Orion 50mm f3.2 guide scope. If you look carefully you can see the patch towards the top right of the image where I wiped a little bit of the dew from the scope.

 

M31_2015.10.21_22.14.04.jpg


Edited by Astrojedi, 23 October 2015 - 11:37 AM.

  • DonBoy, Roberti and photo444 like this

#3186 Astrojedi

Astrojedi

    Soyuz

  • *****
  • Posts: 3970
  • Joined: 27 May 2015
  • Loc: SoCal

Posted 23 October 2015 - 11:36 AM

And here is a 3 frame stack 3x15s. Note I did not use any filters for this.

 

M31_2015.10.21_22.20.42.jpg


Edited by Astrojedi, 23 October 2015 - 11:37 AM.

  • DonBoy likes this

#3187 OsirisRA

OsirisRA

    Lift Off

  • -----
  • Posts: 21
  • Joined: 23 Dec 2010
  • Loc: Australia

Posted 25 October 2015 - 06:18 AM

These are from my second NSN broadcast. Using a SX Ultrastar-C through a Skywatcher ED80 mounted on a EQ5pro with a .5x reducer at around half reduction so about F5.5ish for the scope. Also using a Baader Moon and Skyglow filter as was with Moon and light polluted backyard. Unstacked images from Lodestar live at around 30-60sec.

Attached Thumbnails

  • HGC1365_2015.10.21_00.25.jpg
  • Grus_2015.10.20_22.27.jpg
  • Helix_2015.10.20_22.38.jpg

  • Roberti likes this

#3188 OsirisRA

OsirisRA

    Lift Off

  • -----
  • Posts: 21
  • Joined: 23 Dec 2010
  • Loc: Australia

Posted 25 October 2015 - 06:20 AM

Some more...

Attached Thumbnails

  • Fornax_2015.10.21_01.30.jpg
  • Rosette_2015.10.21_01.57.jpg
  • M42_2015.10.20_01.07.jpg

  • RightWill and Roberti like this

#3189 OsirisRA

OsirisRA

    Lift Off

  • -----
  • Posts: 21
  • Joined: 23 Dec 2010
  • Loc: Australia

Posted 25 October 2015 - 06:22 AM

And...

 

All taken with LL 60sec unstacked.

 

NGC 3372 - The Eta Carinae Nebula

 

Horsehead

 

NGC 253, Sculptor Galaxy

Attached Thumbnails

  • ETA_2015.10.21_03.23.jpg
  • Horse_2015.10.21_02.35.jpg
  • 253_2015.10.20_22.09.jpg

Edited by OsirisRA, 26 October 2015 - 01:41 PM.

  • CharlesC and Roberti like this

#3190 OsirisRA

OsirisRA

    Lift Off

  • -----
  • Posts: 21
  • Joined: 23 Dec 2010
  • Loc: Australia

Posted 25 October 2015 - 06:25 AM

Few more. Going to try different scopes too see what this little chip can do.

 

Tarantula Nebula in the Large Magellanic Cloud (LMC)

 

M1 Crab

 

NGC 3132 Eight-Burst Nebula or Southern Ring Nebula

Attached Thumbnails

  • Tarantula_2015.10.20_23.52.jpg
  • M1_2015.10.20_02.10.jpg
  • EightBurst.NGC3132_2015.10.21_04.46.jpg

Edited by OsirisRA, 26 October 2015 - 01:44 PM.

  • Roberti and Astrojedi like this

#3191 Dom543

Dom543

    Apollo

  • *****
  • Posts: 1099
  • Joined: 24 Oct 2011

Posted 25 October 2015 - 12:37 PM

Very nice collection of captures Ken!

 

It would be helpful, if you could please include the names of the objects and the exposure times and stacking info with your images. For some of us, living closer to the North Pole, those Southern wonders are not household objects. And while we now that the exposure and stacking info is displayed on the bottom of the captures with StalightLive, we cannot read that in the reduced form that the CN file size limit allows.

 

Looking forward to more of your Southern marvels captured with your Ultrastar C.

 

Clear Skies!

--Dom



#3192 Dragon Man

Dragon Man

    Gemini

  • *****
  • Posts: 3381
  • Joined: 07 Mar 2006
  • Loc: Snake Valley, Australia

Posted 26 October 2015 - 12:42 AM

Nice results Ken. Good to see you up and running.  :)


  • OsirisRA likes this

#3193 Dom543

Dom543

    Apollo

  • *****
  • Posts: 1099
  • Joined: 24 Oct 2011

Posted 26 October 2015 - 01:25 AM

Helix Nebula with mono and color Lodestars

 

The purpose of this post is to compare outcomes of three different ways to display color captures. We use identical exposures and stacks to make results as comparable as possible.

 

First is the Helix Nebula captured with a Lodestar x2 monochrome camera and LodestarLive's multi-color stacking capability.

Helix_2015.10.21_00.36.40MonoMulti.jpg

2x60sec O-III +3x60sec H-alpha exposures mean stacked in LodestarLive.

The O-III frames are assigned to the green and blue pixels, the H-alpha to the red pixels.

 

Next the exact same exposures, filters, color assignments and settings but with a Lodestar x2 color camera.

Helix_2015.10.21_01.21.45_ColorWithAssign.jpg

Please disregard the hot pixels. I forgot to take fresh dark frames, when I switched cameras.

I believe that the slightly lower brightness is due to the light loss in the micro filters of the color sensor.

 

Finally, again the same exposures, filters and settings with the Lodestar x2 color camera.

But in this case the color assignment capability of LodestarLive is not used. We let the micro-filters of the Bayer matrix direct the various spectra of light to the appropriate display channels.

Helix_2015.10.21_00.59.12_ColorNoAssign.jpg

This is how the color camera would display the capture without the benefit of LodestarLive's multi-spectral capability. (Again, please disregard the hot pixels, they are my fault not the camera's.)

 

The captures were taken within an hour with the same 10" Meade SCT at f2.0 from the same location near Seattle. (From latitude 47N this Southern nebula is very low above the horizon. The OTA was almost horizontal.) The two filters used for all three captures were the Baader 7nm H-alpha and 8.5nm O-III narrowband filters.

As said, all parameters, including brightness, contrast, saturation settings were kept exactly the same. This way any differences in brightness, color saturation and texture smoothness are due to the differences between the mono and color sensors and between the color assignment methods. The settings were chosen as a compromise that resulted in comparably decent images with all three methods. (None of the above three captures is my favorite one of the Helix Nebula.)

 

For questions, comments or discussion, please use the discussion thread http://www.cloudynig...live/?p=6855315. There I also posted a side by side comparison of the zoomed in fine texture of the captures made with the mono and color cameras respectively.

 

Clear Skies!

--Dom


Edited by Dom543, 26 October 2015 - 02:03 AM.

  • mclewis1, Roberti and MartinMeredith like this

#3194 OsirisRA

OsirisRA

    Lift Off

  • -----
  • Posts: 21
  • Joined: 23 Dec 2010
  • Loc: Australia

Posted 26 October 2015 - 01:41 AM

Nice results Ken. Good to see you up and running.  :)

Cheers Ken, really enjoying it.



#3195 OsirisRA

OsirisRA

    Lift Off

  • -----
  • Posts: 21
  • Joined: 23 Dec 2010
  • Loc: Australia

Posted 26 October 2015 - 01:35 PM

Helix Nebula with mono and color Lodestars

 

The purpose of this post is to compare outcomes of three different ways to display color captures. We use identical exposures and stacks to make results as comparable as possible.

 

First is the Helix Nebula captured with a Lodestar x2 monochrome camera and LodestarLive's multi-color stacking capability.

attachicon.gifHelix_2015.10.21_00.36.40MonoMulti.jpg

2x60sec O-III +3x60sec H-alpha exposures mean stacked in LodestarLive.

The O-III frames are assigned to the green and blue pixels, the H-alpha to the red pixels.

 

Next the exact same exposures, filters, color assignments and settings but with a Lodestar x2 color camera.

attachicon.gifHelix_2015.10.21_01.21.45_ColorWithAssign.jpg

Please disregard the hot pixels. I forgot to take fresh dark frames, when I switched cameras.

I believe that the slightly lower brightness is due to the light loss in the micro filters of the color sensor.

 

Finally, again the same exposures, filters and settings with the Lodestar x2 color camera.

But in this case the color assignment capability of LodestarLive is not used. We let the micro-filters of the Bayer matrix direct the various spectra of light to the appropriate display channels.

attachicon.gifHelix_2015.10.21_00.59.12_ColorNoAssign.jpg

This is how the color camera would display the capture without the benefit of LodestarLive's multi-spectral capability. (Again, please disregard the hot pixels, they are my fault not the camera's.)

 

The captures were taken within an hour with the same 10" Meade SCT at f2.0 from the same location near Seattle. (From latitude 47N this Southern nebula is very low above the horizon. The OTA was almost horizontal.) The two filters used for all three captures were the Baader 7nm H-alpha and 8.5nm O-III narrowband filters.

As said, all parameters, including brightness, contrast, saturation settings were kept exactly the same. This way any differences in brightness, color saturation and texture smoothness are due to the differences between the mono and color sensors and between the color assignment methods. The settings were chosen as a compromise that resulted in comparably decent images with all three methods. (None of the above three captures is my favorite one of the Helix Nebula.)

 

For questions, comments or discussion, please use the discussion thread http://www.cloudynig...live/?p=6855315. There I also posted a side by side comparison of the zoomed in fine texture of the captures made with the mono and color cameras respectively.

 

Clear Skies!

--Dom

 

Great stuff Dom, how do you managed to get your 10" Meade SCT down to f2.0?



#3196 OsirisRA

OsirisRA

    Lift Off

  • -----
  • Posts: 21
  • Joined: 23 Dec 2010
  • Loc: Australia

Posted 26 October 2015 - 01:57 PM

Couple images from last night. 60sec unstacked from Lodestar Live with the SX Ultrastar-C on a Skywatcher ED80 and a CCDT67 reducer on a EQ5pro mount unguided.

 

IC 2944 Running Chicken Nebula

 

47 Tucanae NGC 104

Attached Thumbnails

  • Chicken.60sec_2015.10.26_04.29.jpg
  • 47.Tuc.60sec_2015.10.26_04.06.jpg

  • geminijk and JonNPR like this

#3197 Dom543

Dom543

    Apollo

  • *****
  • Posts: 1099
  • Joined: 24 Oct 2011

Posted 26 October 2015 - 02:16 PM

Great stuff Dom, how do you managed to get your 10" Meade SCT down to f2.0?

Ken,

 

It is a natively f6.3 OTA combined a Meade 3.3 reducer. Meade made these f6.3 "Wide-field" OTA's some time ago. Works great with 1/2" and 1/3" sensors but there is a noticeable vignetting with 2/3" sensors. I tried it with my SX-825, which uses the same sensor as your Ultrastar.

 

For the captures in my previous post I was using a test build of LodestarLive that I am beta testing. The multi-spectral stacking feature will be part of release 2.0, which still needs some work.

 

BTW, are you using any filters?

 

Clear Skies!

--Dom  



#3198 OsirisRA

OsirisRA

    Lift Off

  • -----
  • Posts: 21
  • Joined: 23 Dec 2010
  • Loc: Australia

Posted 26 October 2015 - 08:48 PM

 

Great stuff Dom, how do you managed to get your 10" Meade SCT down to f2.0?

Ken,

 

It is a natively f6.3 OTA combined a Meade 3.3 reducer. Meade made these f6.3 "Wide-field" OTA's some time ago. Works great with 1/2" and 1/3" sensors but there is a noticeable vignetting with 2/3" sensors. I tried it with my SX-825, which uses the same sensor as your Ultrastar.

 

For the captures in my previous post I was using a test build of LodestarLive that I am beta testing. The multi-spectral stacking feature will be part of release 2.0, which still needs some work.

 

BTW, are you using any filters?

 

Clear Skies!

--Dom  

 

 

Ah that makes sense, I was confused how you got F10 down to F2 lol.

 

I am going to try my 10" Meade with the 6.3 reducer but I think it will be too slow.

 

Using a Baader moon and skyglow 2" that is on the setup but I am going to try and use my 1.25" DGM NPB with out vignetting if I can manage it. 


Edited by OsirisRA, 26 October 2015 - 08:49 PM.


#3199 Astrojedi

Astrojedi

    Soyuz

  • *****
  • Posts: 3970
  • Joined: 27 May 2015
  • Loc: SoCal

Posted 28 October 2015 - 11:40 PM

C8@f4 Ultrastar Mono

 

M15_2015.10.28_21.03.35.png


  • geminijk, TL2101 and Roberti like this

#3200 Dragon Man

Dragon Man

    Gemini

  • *****
  • Posts: 3381
  • Joined: 07 Mar 2006
  • Loc: Snake Valley, Australia

Posted 29 October 2015 - 01:24 AM

 

 

Great stuff Dom, how do you managed to get your 10" Meade SCT down to f2.0?

Ken,

 

It is a natively f6.3 OTA combined a Meade 3.3 reducer. Meade made these f6.3 "Wide-field" OTA's some time ago. Works great with 1/2" and 1/3" sensors but there is a noticeable vignetting with 2/3" sensors. I tried it with my SX-825, which uses the same sensor as your Ultrastar.

 

For the captures in my previous post I was using a test build of LodestarLive that I am beta testing. The multi-spectral stacking feature will be part of release 2.0, which still needs some work.

 

BTW, are you using any filters?

 

Clear Skies!

--Dom  

 

 

Ah that makes sense, I was confused how you got F10 down to F2 lol.

 

I am going to try my 10" Meade with the 6.3 reducer but I think it will be too slow.

 

Using a Baader moon and skyglow 2" that is on the setup but I am going to try and use my 1.25" DGM NPB with out vignetting if I can manage it. 

 

Ken, I'd like to see your results and the FOV without any Focal Reducer at all   :waytogo:

Any chance of you trying this?




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics