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#4201 StarMike8SE

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Posted 25 July 2016 - 12:20 PM

I have more to show from last night, just have not had time to convert them jpgs yet.  One of the best nights I have had in months



#4202 TL2101

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Posted 25 July 2016 - 12:24 PM

Joe which skyglow filter did you use with the h-a filter?

 

 

I use the 2" Orion SkyGlow SC RC Broadband filter along with the 1.25"  7nm Orion Extra Narrowband HA  Imaging filter on my C8. The SkyGlow filter came with my scope from the previous owner and is made in Japan. Not sure how old it is but the scope was made in the 80's.



#4203 TL2101

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Posted 25 July 2016 - 04:11 PM

Errol I am sure I have but can't find any examples in my picture folders. I don't keep very good notes if any at all. I have found 45 seconds for nebula's in Ha and 15 seconds for brighter objects like globs has been my sweet spot. I normally stack 4 to 5 frames. Occasionally I go to 60 seconds for the very faint objects.

 

Tonight I will try the Crescent in Ha stacking at 15 seconds and see how it compares. If you have a time you want me to use let me know and I will give it a try.

 

 

Here is the Crescent Nebula shot at 15 seconds and stacked 15 times. I get more detail in the 5 stack at 45 seconds from my earlier post.

Attached Thumbnails

  • NGC.6888_2016.7.24_22.26.06.png

Edited by TL2101, 25 July 2016 - 04:18 PM.

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#4204 TL2101

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Posted 25 July 2016 - 04:16 PM

Shot Pickering's Triangle from my 50mm Orion guide scope with a Ha filter using darks with the Lodestar X2. Cropped to eliminate stretched stars on the left side of the image.

Attached Thumbnails

  • NGC.6979_12016.7.24_23.17.png

Edited by TL2101, 26 July 2016 - 01:05 AM.

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#4205 alphatripleplus

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Posted 25 July 2016 - 05:19 PM

Joe, Thanks for doing the test stacking 15sec vs 45sec subs of the Crescent - definitely more detail and fainter stars visible in the 45sec subs. Very interesting. 



#4206 StarMike8SE

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Posted 26 July 2016 - 08:39 AM

Here are a few more from Sunday night.   Eagle, Trfid, Lagoon, Swan nebula.   15 second exposures stacked for 4 minutes

eaglehabw.jpg trifbw.jpg lagbw.jpg swanbw.jpg


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#4207 StarMike8SE

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Posted 26 July 2016 - 08:42 AM

I also tried some Ha.  Had to increase this to 20 second exposures

 

laghabw.jpg trifhabw.jpg swanhabw.jpg eaglehabw.jpg


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#4208 StarMike8SE

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Posted 26 July 2016 - 08:45 AM

Also got M82, The Ring, and the Dumbell

 

ring.jpg Dumbell.jpg m92.jpg


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#4209 alphatripleplus

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Posted 26 July 2016 - 08:50 AM

Okay, after seeing Joe's great H-alpha shots, I tried using the ASI224 with a 7nm H-alpha filter and the C8. I know that with the ASI224's RGGB color matrix at 656nm, the overall response will be about 35% of that of a mono sensor  (ZWO gives relative responses at 656nm of: 95% for R, 19% for G, and 8% for B). So clearly this is not an efficient way to do H-alpha, but without a mono camera it's all I can do at the moment. Anyway, here is a 7 minute stack of 10sec subs of the Crescent. I didn't try longer subs, which might have been a good idea -  I will try that next time.

 

NGC6888 (42x10s):  ASI224 @350 gain + C8 @ f3.7 + 7nm H-alpha + SharpCap. Desaturated post SharpCap (too much red otherwise).

 

NGC6888_Stack_42x10s_350G_Ha_f3.7_GI_crp.jpg


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#4210 Astrojedi

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Posted 26 July 2016 - 12:04 PM

Some shots from last night using my club's Atik Infinity color camera. Set it up in my observatory on the 8" SCT. Getting ready for an outreach event this weekend that I am hosting in my backyard.

 

All images on a C8 @ F3.7, CGEM mount and DGM GCE filter (no guiding). Exposure times are in the image name. Typically 5s-30s sub exposures.

 

There are some aberrations around the corners due to the fast focal ratio but for outreach I prioritize speed (as long as the image of the main object stays enjoyable no one notices)

 

M16 F3.7 5x30s GCE2.jpg


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#4211 Astrojedi

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Posted 26 July 2016 - 12:07 PM

Details same as above

 

M8:

M8 F3.7 5x30s GCE2.jpg

 

Open Cluster NGC6819 (also referred to as the Foxhead):

N6819 Foxhead F3.7 9x10s GCE.jpg


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#4212 Astrojedi

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Posted 26 July 2016 - 12:10 PM

Details same as above

 

Looking towards M24 Sagittarius Star Cloud. My FoV is too narrow to get the whole cloud but captured the very interesting open cluster NGC6603 (center left)

 

M24 C8 f3.7 GCE 3x30s.jpg


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#4213 Astrojedi

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Posted 26 July 2016 - 12:14 PM

Same Details as above

 

And one of my favorite open clusters M11

 

M11 C8 f3.7 GCE 2x5s.jpg

 

Open cluster M25. Love the color of the older stars.

 

M25 C8 f3.7 GCE 3x5s.jpg

 


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#4214 Astrojedi

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Posted 26 July 2016 - 12:23 PM

Same details as above.

 

A couple of globs

 

M22

M22 C8 f3.7 GCE 5x10s.jpg

 

M9

M9 C8 f3.7 GCE 7x15s.jpg


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#4215 Stargazer3236

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Posted 27 July 2016 - 09:40 AM

I consider myself an off the wall imager. I don't go for the flashy, showy nebula, wussy NGC's, IC's or Messier's.. I like the hard to get, obscure planetary nebula, like the Abells, Minkowski's, Sharpless, etc.

 

Last night, I bagged some of the fainter Abell planetaries in and around Cygnus, Aquila, Hercules, Cepheus, Lyra, Delphinus. I finally caught Abell 39, a ghostly ring in Hercules. I also got NGC 246, the Skull nebula in Cetus.

I will post pics later after I do a little post processing to bring out details and label the pics.


Edited by Stargazer3236, 27 July 2016 - 09:40 AM.

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#4216 StarMike8SE

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Posted 27 July 2016 - 10:07 AM

I consider myself an off the wall imager. I don't go for the flashy, showy nebula, wussy NGC's, IC's or Messier's.. I like the hard to get, obscure planetary nebula, like the Abells, Minkowski's, Sharpless, etc.

 

Last night, I bagged some of the fainter Abell planetaries in and around Cygnus, Aquila, Hercules, Cepheus, Lyra, Delphinus. I finally caught Abell 39, a ghostly ring in Hercules. I also got NGC 246, the Skull nebula in Cetus.

I will post pics later after I do a little post processing to bring out details and label the pics.

Can't wait to see them



#4217 Geordiemc

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Posted 28 July 2016 - 04:39 AM

Great images guys. Does the Meade 3.3 reducer fit straight onto the C8? If it does how would I then attach my lodestar x2. Just got it and itching to try lodestar live out. I have the Edge 800 with the 0.7 reducer and presume I need to get the focal ratio below f7 to get best results. Thanks in advance for any help.



#4218 StarMike8SE

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Posted 28 July 2016 - 06:37 AM

Here are a few more from Sunday night.   Eagle, Trfid, Lagoon, Swan nebula.   15 second exposures stacked for 4 minutes

attachicon.gifeaglehabw.jpgattachicon.giftrifbw.jpgattachicon.giflagbw.jpgattachicon.gifswanbw.jpg

 

I took my earlier images and colorized them to give them a more natural look and mainly for my non-astronomy friends and family.  They want to see color and not B&W.  Here are the first two

 

IMG_0978.jpg IMG_0975.jpg


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#4219 StarMike8SE

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Posted 28 July 2016 - 06:38 AM

 

Here are a few more from Sunday night.   Eagle, Trfid, Lagoon, Swan nebula.   15 second exposures stacked for 4 minutes

attachicon.gifeaglehabw.jpgattachicon.giftrifbw.jpgattachicon.giflagbw.jpgattachicon.gifswanbw.jpg

 

I took my earlier images and colorized them to give them a more natural look and mainly for my non-astronomy friends and family.  They want to see color and not B&W.  Here are the first two

 

attachicon.gifIMG_0978.jpgattachicon.gifIMG_0975.jpg

 

 

Here are the final two

 

IMG_0976.jpg IMG_0977.jpg


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#4220 alphatripleplus

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Posted 28 July 2016 - 08:18 AM

Last night I tried my 7nm H-alpha filter on a 70mm aperture Celestron TravelScope working at f/3.1 that I use as a finder. Had to stretch these in GIMP, post SharpCap, but did not alter color.  As mentioned in my previous post, using the ASI224 with RGGB matrix and H-alpha cuts sensitivity to about 35% of a mono camera without RGGB matrix, so this is not efficient but it is my only option at the moment. Used 20s subs in stack this time.

 

North America Nebula NGC7000 (framing not ideal, and focus looks a bit off): (33x20s):  ASI224 @350 gain + 70mm finder @ f3.1 + 7nm H-alpha + SharpCap. Post-stretched in GIMP.

 

NGC7000_Stack_33x20s_350G_Ha_f3.1_GI_crop.jpg

 

 

Crescent Nebula NGC6888 (18x20s):  ASI224 @350 gain + 70mm finder @ f3.1 + 7nm H-alpha + SharpCap. Post-stretched in GIMP.

 

NGC6888_Stack_18x20s_350G_Ha_f3.1_GI.jpg


Edited by alphatripleplus, 28 July 2016 - 08:37 AM.

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#4221 RandyC

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Posted 28 July 2016 - 09:28 AM

Hi, Here is M13 with the Sony A7s on a 2min exposure at iso4000, Equipment C14xlt at f12.

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  • m13 cl.png

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#4222 Astrojedi

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Posted 28 July 2016 - 06:08 PM

Couple of captures from last night. Did a trail run with the family and they were quite amazed. I know this is not a new observation but I am sold on the Atik Infinity Color as an excellent camera for outreach. You can get good high resolution results with minimum complexity.

 

The software does not offer as much control as say AstroToaster or Starlight Live but the simplicity is what makes it so effective when you are sharing views with a group of people.

 

C8 @ F3.8, CGEM, Orion LP filter and Atik Infinity Color. Red LP zone and poor transparency due to a light layer of low level clouds.

 

M20 5x60s

M20 5x60s Orion LP C8 CGEM F3.8.jpg

 

NGC6960 5x60s

N6960 5x60s Orion LP C8 CGEM F3.8_2.jpg

 

 


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#4223 ChrisFC

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Posted 29 July 2016 - 01:05 AM

Given that you use both the infinity and the zwo224mc I'd be interested in your thoughts on their relative sensitivities.
Just wondering if it's worth getting the infinity - for greater sensitivity (and bigger fov).

Edited by ChrisFC, 29 July 2016 - 01:10 AM.


#4224 Stargazer3236

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Posted 29 July 2016 - 06:01 AM

I must be a total noob! I have no idea how to process a 5 x 60s stack of images. I can capture an AVI and process that, but i have no idea how to process a set of 60s exposures. How do you do that?



#4225 StarMike8SE

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Posted 29 July 2016 - 06:51 AM

Couple of captures from last night. Did a trail run with the family and they were quite amazed. I know this is not a new observation but I am sold on the Atik Infinity Color as an excellent camera for outreach. You can get good high resolution results with minimum complexity.

 

The software does not offer as much control as say AstroToaster or Starlight Live but the simplicity is what makes it so effective when you are sharing views with a group of people.

 

C8 @ F3.8, CGEM, Orion LP filter and Atik Infinity Color. Red LP zone and poor transparency due to a light layer of low level clouds.

 

M20 5x60s

attachicon.gifM20 5x60s Orion LP C8 CGEM F3.8.jpg

 

NGC6960 5x60s

attachicon.gifN6960 5x60s Orion LP C8 CGEM F3.8_2.jpg

I could not agree with you more.  I love my Mono Infinity (thanks to you Hiten).  Great sensitivity, good resolution, and excellent software that really makes it easy.  I am enjoying mine a lot.


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