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Some new images from France

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#26 Steph_2.0

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Posted 17 January 2019 - 05:26 PM

These 12 "that you use are wonderful, for this type of weak and small objects gives an impressive detail.

 

Does this combination give you some coma aberration at the edges?

yes you can see it on the images, especially when I use a focal reducer.

I want to try a coma corrector, but it's a lot of money for a good one.

 

For me, coma aberration it's one problem, the two others problems, are light pollution and the amp glow with the high gain.

 

I always do dark frames, and I often use a UHC-S filter.

 

On this image, I made three mistakes, I forgot the dark frames, I forgot the UHC-S filter, and I went off to do something else during the stack...when I came back, the result was bad lol.gif

Capture.PNG.0748b5956376f6230eed68ddec05dcd9.jpg

 

 

The same day, with the same conditions,gain, exposure time, but with dark frames and UHC-S filter...the result was much better,...except the plane! . So it's not very difficult to have a good result in EAA, but some details are very important.

Capture.jpg.7f61bd30923d87794874e25937b90560.jpg


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#27 elpajare

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Posted 18 January 2019 - 02:36 AM

The light pollution is difficult to fix, a UHC filter (double band) helps but for the galaxies it does not go very well, it takes away a lot of light, IMO...only for bright nebula. Try this Bode nebula without UHC but with Dark Field, result will be very best!
The amp glowe if is easy to fix with the Dark Fields.

You're right with the comma correctors, the good ones are very expensive.

 

Congratulations for yourpictures Steph


Edited by elpajare, 18 January 2019 - 02:39 AM.

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#28 Hypoxic

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Posted 25 January 2019 - 12:59 PM

“no, no, no,  not a motorola,  but a 12" Orion on EQ8 mount.”

 

Did you purchase your telescope over here in France?



#29 Steph_2.0

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Posted 25 January 2019 - 04:35 PM

“no, no, no,  not a motorola,  but a 12" Orion on EQ8 mount.”

 

Did you purchase your telescope over here in France?

Hi,

yes in France, the optical tube to Optique Unterlinden a few years ago, and the mount to Promo-optique.



#30 Steph_2.0

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Posted 25 January 2019 - 04:42 PM

Hi,

A new one:

 

NGC 2841, in the constellation Ursa Major, magnitude 10, 17x60 s with darks.

ngc2841.jpg

 


Edited by Steph_2.0, 25 January 2019 - 04:43 PM.

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#31 Steph_2.0

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Posted 25 January 2019 - 06:18 PM

NGC 3184, in the constellation Ursa Major, magnitude 9.6, 10x60 s with dark

ngc3184.jpg


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#32 Hypoxic

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Posted 26 January 2019 - 02:42 AM

Hi,

yes in France, the optical tube to Optique Unterlinden a few years ago, and the mount to Promo-optique.

Thanks! I’ll take a look at these vendors as I had been using astroshop.eu for past purchases.

Your images are lookin good.



#33 Steph_2.0

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Posted 06 February 2019 - 06:04 PM

Hi, some new images from this night:

 

NGC 3198, mag 10.3, Ursa Major, (4x120s, dark), with Sharpcap

ngc3198.jpg


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#34 Steph_2.0

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Posted 06 February 2019 - 06:11 PM

M76, planetary nebula,Perseus, mag 10 (5X120s,  dark) Sharpcap

M76c.jpg


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#35 Steph_2.0

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Posted 06 February 2019 - 06:14 PM

M106, mag 8,4 Canes Venatici (360 x 4s, dark) Sharpcap on the fly enhancement:

M106.jpg


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#36 Tyson M

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Posted 07 February 2019 - 04:07 PM

Wow that M106 is incredible!  I'd love to shoot galaxies someday for EAA, possibly with my SW 180 mak.



#37 Steph_2.0

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Posted 07 February 2019 - 04:48 PM

Wow that M106 is incredible!  I'd love to shoot galaxies someday for EAA, possibly with my SW 180 mak.

Thanks for the comment, I was lucky this night with a very good sky!

 

The same night, NGC 3953, Ursa Major, mag 10,8, (360 x 4s, dark) Sharpcap.

ngc3953.jpg


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#38 Steph_2.0

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Posted 09 February 2019 - 02:00 PM

NGC 3359, mag 10,5 Ursa Major, (360 X 4s + darks).

NGC3359.jpg


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#39 Steph_2.0

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Posted 09 February 2019 - 02:07 PM

NGC 2903, mag 8,8, Leo Constellation, 24 min integration time,with various exposures in the same stack + darks

NGC2903.jpg


Edited by Steph_2.0, 09 February 2019 - 02:36 PM.

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#40 Steph_2.0

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Posted 09 February 2019 - 04:00 PM

M63, Canes Venatici, mag 8,6 (360 x 4s+ darks) Sharpcap on the fly enhancement:

M63.jpg


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#41 Steph_2.0

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Posted 13 February 2019 - 06:25 PM

Hi all,

M65 & M66, 120s total integration time.

m65_m66c.jpg


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#42 Steph_2.0

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Posted 13 February 2019 - 07:25 PM

NGC3628, 80s total integration time

ngc3628c.jpg


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#43 Steph_2.0

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Posted 13 February 2019 - 08:48 PM

NGC4567 / NGC4568 / NGC4564, 192s integration time, Virgo Constellation

ngc4567c.jpg


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#44 Steph_2.0

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Posted 14 February 2019 - 05:09 PM

Hi!

Always in Sharpcap and always with darks

M51, mag 8.4, Canes Venatici, 120s integration time. A beautiful and simple object to test our setup.

m51c.jpg

 

 

 


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#45 Steph_2.0

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Posted 15 February 2019 - 07:56 PM

M82, mag8.6, Ursa Major, 120s total integration time.

m82c.jpg



#46 Steph_2.0

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Posted 15 February 2019 - 11:01 PM

M104, mag9, Virgo, 80s total integration time.

m104c.jpg


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#47 Steph_2.0

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Posted 18 February 2019 - 04:31 PM

Hi,
Some new pics from my last night before the full moon.
Some of them are the same object as those of my previous post, but with a longer total integration time.

 

NGC3938, mag 10.9, in the constellation Ursa Major. 15 min integration time, various sub exposure in the same stack (4s to 15s), darks, flats and Sharpcap enhancement on the fly.

ngc3938.jpg


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#48 Steph_2.0

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Posted 18 February 2019 - 04:35 PM

A classical M51…mag 8.4, in the constellation Canes Venatici. 24 min integration time, various sub exposure in the same stack (4s to 30s), darks, flats and Sharpcap enhancement on the fly.

m51_2.jpg


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#49 Steph_2.0

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Posted 18 February 2019 - 04:40 PM

M65 & M66 duo, mag 10.2 & mag 8.9, in the constellation of Leo. 24 min integration time, various sub exposure in the same stack (4s to 30s), darks, flats and Sharpcap enhancement on the fly.

m65_m66.jpg


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#50 Steph_2.0

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Posted 18 February 2019 - 04:44 PM

NGC 3628, the Hamburger Galaxy, mag10.2, in the constellation Leo. 15 min integration time, various sub exposure in the same stack (4s to 15s), darks, flats and Sharpcap enhancement on the fly.

ngc3628.jpg

 


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