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10-Minute Max Challenge. What's possible? Please post your best

EAA Imaging
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#51 Leafus

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Posted 08 July 2022 - 04:57 PM

SDN: Wow. Awesome image. Pillars of creation at centre. Amazing detail

#52 BrentKnight

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Posted 17 July 2022 - 11:19 PM

OK...Here is one at 10' on the dot.

 

M20 40 frames 600s (UV IR) WithDisplayStretch

 

M20 (The Triffid Nebula): C8 @ f/6.3 | Darks, a very old flat, UV-IR filter | 15"/10'/G=250

 

And another...

 

M8 40 frames 600s (UV IR) WithDisplayStretch

 

M8 (The Lagoon Nebula): C8 @ f/6.3 | Darks, a very old flat, UV-IR filter | 15"/10'/G=250

Color is pretty nice.  No narrowband lets the lighter bluish/white colors come out more.


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#53 Leafus

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Posted 18 July 2022 - 04:52 AM

Those are superb images. I really like the colours on both and particularly M8. A great contrast to narrowband colour.
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#54 GMatteo

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Posted 20 July 2022 - 12:04 PM

Thank Leafus for your comment.

Below another try: NGC 6764, a faint galaxy in Cygnus.

Always taken with a Skywatcher 200/1000 newton and ZWO ASI 224 MC. 664 seconds total, 4 seconds subframes with preloaded dark frame in Sharpcap

 

Stack_166frames_664s_ngc 6764.jpg

 

Matteo


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#55 SchoolMaster

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Posted 20 July 2022 - 01:43 PM

I'm a bit of an outlier.  I work with 5 minutes mostly.

 

NGC7000 7nm Ha narrowband C8 HyperStar ZWO294MM Pro Bin 1, GEM28

 

Gain 300, 15 x 20 secs.

 

20JulNGC7000-MC8-G300zHS19-15-20-DF-F7Ha.jpg

 

 


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#56 Leafus

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Posted 21 July 2022 - 08:01 AM

I'm a bit of an outlier.  I work with 5 minutes mostly.

 

NGC7000 7nm Ha narrowband C8 HyperStar ZWO294MM Pro Bin 1, GEM28

 

Gain 300, 15 x 20 secs.

 

attachicon.gif20JulNGC7000-MC8-G300zHS19-15-20-DF-F7Ha.jpg

I know hyper star is fast, but its incredible that you can get such a good image with a 7nm narrowband in 20 seconds and only 5 minutes. Great Detail.



#57 SchoolMaster

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Posted 21 July 2022 - 08:20 AM

Thanks, I was blown away too.  If you check out page 107 of Journey to Glory? you can see the rest of the narrowband captures at similar exposure.

 

I'm dialing in my HyperStar.  This morning my captures were full-spectrum mono, but 300 to 500ms, up to 2000ms and 1 minute, getting OK detail, but annoying artifacts due to miscalibration.



#58 jonnybravo0311

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Posted 22 July 2022 - 09:58 PM

Here's a live stack of 2x300" Ha subs from my imaging session of M16:

 

gallery_347158_19817_1888046.png

 

No darks or flats applied. Zoomed in a bit to show off the nebula. ASI294MM Pro, bin1, gain 108, offset 20, -5C, 0.8x reduced GT81.


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#59 alphatripleplus

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Posted 23 July 2022 - 06:45 AM

Good to see some H-alpha pics here.


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#60 alphatripleplus

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Posted 23 July 2022 - 07:31 AM

Here's an oldie from a while back of the North America and Pelican nebulae - just under 5 minutes total exposure with a 135mm f/2.8 Chinon telephoto lens, Lodestar X2 mono, 7nm H-alpha filter, Starlight Live EAA software:

 

NGC7000 and IC5070 (H-alpha); 6 x 45sec

Attached Thumbnails

  • NGC7000.IC5070.Ha_6x45s_f2.8_2016.11.7_19.45.47.jpg

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#61 ad701xx

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Posted 23 July 2022 - 12:49 PM

Here are some of my favorites from my first (and only) try at EAA.

 

All images were 20 seconds x 15. I was playing around with different gains but I can't find my notes right now.

 

Equipment:

 

AT60ED

533MC cooled at -5C (I think)

RST-135 mount in equatorial mode

 

M42, M45, M81/M82 used UV/IR filter...the rest were with L-eXtreme filter.

 

Rosette Nebula

Rosette Nebula
California Nebula
California Nebula
Monkey's Head Nebula
Monkey's Head Nebula
M81/M82
M81 M82
M45
M45
M42
M42

 


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