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#7476 tmaestro

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Posted 08 July 2019 - 12:58 PM

This might not be that interesting to you guys, but here's a video showing M16 stacking up in SharpCap.

 

https://youtu.be/1tL7lITJL1M


 

#7477 Stargazer3236

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Posted 09 July 2019 - 12:59 PM

Over the last two nights, I did some DEEP sky EAA imaging. I observed some Abell planetaries on Monday night and some Ring Galaxies on Sunday night. I get disinterested with the more mundane bright Messier's and NGC's. However, there are some showpieces in the NGC that I keep going back to. My setup is as follows:

 

Celestron Nexstar 8SE ota

iOptron ZEQ25 mount

ASI294MC camera

SharpCap 3.2 Pro (Toshiba Laptop)

Dew Control (the dew dropped on both nights)

 

For the Ring galaxies, I used Alvin Huey's downloadable catalog on Ring Galaxies and the Abell Planetaries in Alvin Huey's database as well. All of these objects are very faint, around 13, 14 and even 15th magnitude. For the Ring galaxies, I used straight F/10 F ratio. For the Abell planetaries, I used a Meade F/6.3 reducer/corrector. Also, the Abell planetaries I used a 2" UHC filter and UV/IR blocker filter too.

 

In SharpCap, I employed Unsharp Masking, Bilateral Noise Reduction, Sigma Clipping, Auto Stretch histogram, black, mid and white level sliders, plus color saturation too. Since I live in a Bortle 5/6 zone, I had to up the gain to more than necessary because of the light pollution from the Boston light dome plus smoke particles from the Ontario region forest fires.

 

Here, first are the pics of the Ring Galaxies:

 

Hoag's Object, 2x2 bin, 400 gain, 45x15s, 100% zoom

hoags object 2x2bin 400 gain 45x15s 100p zoom unsharp.jpg

 

NGC 6028, 2x2 bin, 400 gain, 54x15s, 100% zoom

ngc 6028 400gain 2x2bin 54x15s 100p zoom.jpg

 

UGC 5609, 2x2 bin, 400 gain, 45x15s, 50% zoom

ugc 5609 2x2bin 400gain 45x15s 50 p zoom.jpg

 

UGC 10168, 2x2 bin 400 gain, 55x15s, 66% zoom

ugc10168 2x2bin 400gain 55x15s 66p zoom.jpg

 

PGC 58180, 2x2 bin, 400 gain, 40x15s, 66% zoom

pgc58180 2x2bin 400gain 40x15s 66p zoom.jpg

 

 

 

 

 

 


 

#7478 Stargazer3236

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Posted 09 July 2019 - 01:06 PM

And here are the Abell planetaries, along with a colorful NGC object as well. Same set up as above:

 

Abell 55, 2x2 bin, 500 gain, 21x20s, 100% zoom

abell55 2x2bin 350gain 21x20s 100p zoom.jpg

 

Abell 70, 2x2 bin, 500 gain, 35x20s, 100% zoom

abell70 2x2bin 500gain 35x20s 100p zoom.jpg

 

Abell 71, 2x2 bin, 500 gain, 30x20s, 40% zoom

abell71 2x2bin 550gain 30x20s 40p zoom.jpg

 

Abell 72, 2x2 bin, 500 gain, 33x20s, 50% zoom

abell72 2x2bin 500gain 33x20s 50p zoom.jpg

 

Abell 75, 2x2 bin, 500 gain, 46x20s, 66% zoom

abell75 2x2bin 550gain 46x20s 66p zoom.jpg

 

 


 

#7479 Stargazer3236

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Posted 09 July 2019 - 01:10 PM

And a few more Abell planetary nebula:

 

Abell 77, 2x2 bin, 550 gain, 43x20s, 50% zoom

abell77 2x2bin 550gain 43x20s 50p zoom.jpg

 

Abell 78, 2x2 bin, 550 gain, 31x20s, 66% zoom

abell78 2x2bin 550gain 31x20s 66p zoom.jpg

 

Abell 79, 2x2 bin, 550 gain, 41x20s, 75% zoom

abell79 2x2bin 550gain 41x20s 75p zoom.jpg

 

NGC 6781, 2x2 bin, 400 gain, 33x20s, 100% zoom

ngc6781 2x2bin 350gain 33x20s 100p zoom.jpg


 

#7480 Umasscrew39

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Posted 19 July 2019 - 04:06 AM

Live views during a full moon using a 5nm Astrodon narrowband filter on a C11" @ f/7 and a ZWO ASI1600MM Pro.  Captures were 20 x 60s using SharpCap. 

Attached Thumbnails

  • Eagle Nebula.jpg
  • Eagle Nebula Pillars of Creation.jpg
  • Dumbbell Nebula.jpg

 

#7481 Umasscrew39

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Posted 19 July 2019 - 04:07 AM

More live views during a full moon using a 5nm Astrodon narrowband filter on a C11" @ f/7 and a ZWO ASI1600MM Pro.  Captures were 20 x 60s using SharpCap.

Attached Thumbnails

  • Trifid Nebula.jpg
  • Lagoon Nebula.jpg

 

#7482 Umasscrew39

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Posted 19 July 2019 - 04:07 AM

More live views during a full moon using a 5nm Astrodon narrowband filter on a C11" @ f/7 and a ZWO ASI1600MM Pro.  Captures were 20 x 60s using SharpCap.

Attached Thumbnails

  • Omega Nebula.jpg

 

#7483 Stargazer3236

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Posted 20 July 2019 - 12:04 PM

Nice image! cool.gif waytogo.gif

 

I was thinking about getting Optolong L-eNhancer NB filter.

I just bought the L-eNhance filter, should be arriving in the mail today!


 

#7484 Stargazer3236

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Posted 20 July 2019 - 12:28 PM

Very nice.  Just curious why doing 2x2 binning with a color camera?

When you bin your camera 2x2 you are making your camera "read" 4 adjacent pixels as just one pixel.  This does not increase the total amount of signal (desired photons) captured by your camera at all.  With a CMOS camera it does dramatically reduce the amount of read noise since the read noise is now based on one pixel instead of on four pixels.

 

When going from un-binned to Bin2x2 you should see each pixel on your screen as being brighter since when you are using Bin2 each pixel on your screen now shows the light gathered by 4 pixels on your camera's sensor.  There is no increase in the amount of signal you are capturing but it is more concentrated on your display and your SNR will be better.


 

#7485 Umasscrew39

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Posted 20 July 2019 - 01:08 PM

When you bin your camera 2x2 you are making your camera "read" 4 adjacent pixels as just one pixel.  This does not increase the total amount of signal (desired photons) captured by your camera at all.  With a CMOS camera it does dramatically reduce the amount of read noise since the read noise is now based on one pixel instead of on four pixels.

 

When going from un-binned to Bin2x2 you should see each pixel on your screen as being brighter since when you are using Bin2 each pixel on your screen now shows the light gathered by 4 pixels on your camera's sensor.  There is no increase in the amount of signal you are capturing but it is more concentrated on your display and your SNR will be better.

Thanks, David.  I know what 2x2 binning is and what it does, I just was not use to seeing it used on a color camera.  I typically see it used, as I have, with mono cameras as 2x2 binning on a CCD color cam loses its color.  I guess with the CMOS it is different-  Interesting.


 

#7486 CCD-Freak

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Posted 20 July 2019 - 01:43 PM

More live views during a full moon using a 5nm Astrodon narrowband filter on a C11" @ f/7 and a ZWO ASI1600MM Pro.  Captures were 20 x 60s using SharpCap.

 

What F7 reducer are you using with the C11 ???

 

John

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WD5IKX


 

#7487 Umasscrew39

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Posted 20 July 2019 - 01:53 PM

The Celestron.7x reducer.  It is heavy, bulky and expensive but it is the best one I have tried.  Optec makes a good one but you cannot use a filter with it. 


 

#7488 S1mas

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Posted 21 July 2019 - 12:39 PM

Near edge of the Universe. 16.5 mag quasar S5 0014+81 12000 Mly away
 

8" SCT at F6.3 with Altair Hypercam 294 pro
22x30s, Saved as viewed

Stack_22frames_660s.jpg


 

#7489 39.1N84.5W

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Posted 26 July 2019 - 06:57 AM

NGC 5907, asi294mc, 150x8s, idas P2, 8"f4 newt. From a red/white zone.rps20190726_075705_722.jpg


 

#7490 RazvanUnderStars

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Posted 27 July 2019 - 09:42 PM

Another very distant quasar imaged yesterday. HS 1946+7658, mag 16.5, 12 billion light years away. 35x30s with SharpCap, ASI 294MC Pro and 8" Evolution with FR 0.63. Downscaled to 25% for posting. When it was discovered in 1992, it was the brightest known quasar to date. 

 

__Stack_35frames_1050s_WithDisplayStretch.jpg

 

 


 

#7491 Stargazer3236

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Posted 28 July 2019 - 11:36 AM

Remember, Quasar's are made by Motorola!

 

https://www.youtube....h?v=U72XK0giMzU


 

#7492 Ptarmigan

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Posted 28 July 2019 - 11:55 AM

Another very distant quasar imaged yesterday. HS 1946+7658, mag 16.5, 12 billion light years away. 35x30s with SharpCap, ASI 294MC Pro and 8" Evolution with FR 0.63. Downscaled to 25% for posting. When it was discovered in 1992, it was the brightest known quasar to date. 
 
attachicon.gif __Stack_35frames_1050s_WithDisplayStretch.jpg

 

Near edge of the Universe. 16.5 mag quasar S5 0014+81 12000 Mly away
 
8" SCT at F6.3 with Altair Hypercam 294 pro
22x30s, Saved as viewed

attachicon.gif Stack_22frames_660s.jpg

Nice image of the quasars. cool.gif waytogo.gif

 

I ran an absolute magnitude calculation of those quasars.
https://en.wikipedia...olute_magnitude

HS 1946+7658
-31.98 or -32

S5 0014+81
-31.32

From 32.6 light years or 10 parsecs, they would be much brighter than the Sun in the day time! The Sun at the same distance would be a faint background star of +4.4.

 

Some of the brightness is from gravitational lensing. Regardless, that is really bright! The radiation level from quasars would be way off the chart. shocked.gif 
 

 


 

#7493 Lyle

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Posted 28 July 2019 - 02:06 PM

NGC 4565, 9, 1-minute images using an APM 140mm APO refactor, and an ATIK 314+ CCD. Stretched using Deep Sky Stacker Live and displayed near real time, no additional processing

Attached Thumbnails

  • NGC4565 apm .jpg

 

#7494 Stargazer3236

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Posted 28 July 2019 - 02:29 PM

Here is an unprocessed pic of M27, taken last night with my Orion 120ST refractor, ASI294MC camera and new 2" Optolong L-eNhance filter, using Sharpcap 3.2 Pro (using Bilateral Noise Reduction, Logarithmic Horizontal Positioning, Unsharp Masking, Sigma Clipping, Auto Histogram Stretch, FWHM focusing, Color Saturation). Skies were absolutely atrocious, could only see the major stars of the constellations. I live and image in a Bortle 6/7 zone and live just outside the Boston Light Dome.

 

M27, 2x2 bin, 450 gain, 20x15s, 100% zoom

m27 2x2bin 450gain 20x15s 100p zoom.jpg


 

#7495 Stargazer3236

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Posted 28 July 2019 - 02:31 PM

Here is another pic of the Eastern Veil nebula, NGC 6995, same equipment as above using the same processes on the fly, like above.

 

NGC 6995, 2x2 bin, 450 gain, 20x15s, 75% zoom

ngc6995 2x2bin 450gain 20x15s 75p zoom.jpg


 

#7496 John59

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Posted 29 July 2019 - 08:33 PM

This is M51 at 30sec exposures stacked for 3 minutes in SharpCap.

This was using ASI294MC Pro cooled on my CC8.

I have not used a long focal length (2400MM/f12) in a long time.

I had forgotten how unforgiving they are in tracking errors, etc.

Hence the hot pixels trailing from the stacking in SharpCap

B64DAE9E-ECB3-48EE-AB23-CBC9855CA586.jpeg


 

#7497 Oukifrench

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Posted 30 July 2019 - 07:12 AM

Collinder 399.

One shoot 1,5 sec

Sionyx Aurora 

Makinon 200 F4 with 26mm in afocale. 

More observation  in video here.

https://youtu.be/UNlg5Wjbja8

https://youtu.be/fNT_gVt8pSA

 

just for testing the SiOnyx Aurora on astronomy. 

 

Ouki 

Attached Thumbnails

  • XQE_0082.JPG

 

#7498 Oukifrench

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Posted 30 July 2019 - 07:29 AM

A piece of milky way.

SiOnyx Aurora  solo.

Stacking with DSS LIVE MODULE.

Not easy to realise a stack .

camera 》smartphone  in wifi 》and connect to pc...

but it work.

10x1,5 no post processing. 

 

Here small travel in cygnus in video.

https://youtu.be/lV2xTXQO07g

Here on the Milky way. 

https://youtu.be/BnzxMQPdEiM

 

Video 》 greyscale at 2,5 Fps.

ouki

 

 

 

Attached Thumbnails

  • Sans titre 4.jpg

 

#7499 OhioKraken

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Posted 01 August 2019 - 10:06 AM

This year, after many conversations at Cloudy Nights, I purchased a used Celestron Nexstar 6 Evolution and a ZWO ASI385MC.  I have a .67 focal reducer and for the following picture I used an Optolong UHC filter.  Last evening, I imaged a variety of nebula but really liked this image of the dumbbell nebula (M27).  It's a stack of 98 ten second exposures with a gain of 350 (about 16 minutes of total exposure).

Dumbell Neb UHC

 

#7500 Stargazer3236

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Posted 03 August 2019 - 07:03 PM

I was out on July 31-August 1 for about 3 hours or so. I caught a little bit of Jupiter, but although the seeing was rated "Above Average", I still could see atmospheric currents across the face of Jupiter. However, employing my new L-eNhance filter from Optolong, I got some nice images of some planetary nebula and a couple of emission nebula too!

 

I used my Celestron Nexstar 8se, ZEQ25 mount, ASI294MC camera, Optolong L-eNhance 2" filter and SharpCap 3.2 Pro to capture my images. I used Sigma Clipping, Horizontal Positioning Axis, Unsharp Masking, Bilateral Noise Reduction and played around with the Black and Mid level sliders plus minor tweaks of Color Saturation. No post processing was done. Here are my images with capture details:

 

M8, 2x2 bin, 350 gain, 15x15s

m8 2x2bin 350gain 15x15s 33p zoom.jpg

 

M20, 2x2 bin, 350 gain, 30x15s

m20 2x2bin 334gain 30x15s 33p zoom.jpg

 

NGC 6826, 1x1 bin, 275 gain, 24x15s

ngc 6826 1x1bin 275gain 24x15s 125p zoom.jpg

 

NGC 7008, 2x2 bin 300 gain, 29x15s

ngc7008 2x2bin 400gain 29x15s 75p zoom.jpg

 

NGC 7026, 2x2 bin, 300 gain, 28x15s

ngc7026 2x2bin 300gain 28x15s 150p zoom.jpg

 

NGC 7048, 2x2 bin, 300 gain, 40x15s

ngc7048 2x2bin 300gain 40x15s 75p zoom.jpg

 

Simeis 57, 2x2 bin, 500 gain, 40x15s (A real tough one to get)

simeis 57 prop neb 2x2bin 505gain 40x15s 33p zoom.jpg

 

NGC 6894, 2x2 bin, 300 gain, 40x15s

ngc6894 2x2bin 300gain 40x15s 75p zoom.jpg

 

 


 


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