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A 2.5 hour session with 6 SE & ASI290MM

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#1 roelb

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Posted 27 July 2017 - 05:53 PM

End May I had a 2.5 hours EAA session at a dark location, clear, no moon.

I used a Nexstar 6 SE with the Mallincam MFR5-II (part A+B+10 mm) and the ZWO ASI290MM.

Focal reduction: ~ 0.4 => f = 620 mm). FOV: 31' x 18'; 2 x BIN (1.94 arcs/px). Gain 350.

I tried to compare short exposures against longer ones to see what quality can be achieved in the shortest time possible.

It shows also how many targets can be "visited" in a 2.5 h session.

All images are reduced to comply the CN file size limit.


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#2 roelb

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Posted 27 July 2017 - 05:56 PM

HCG 70

 

4 x 15 s = 60 s

HCG 70_Stack_4frames_60s.jpg

 

6 x 15 s = 90 s

HCG 70_Stack_6frames_90s.jpg

 

 


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#3 roelb

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Posted 27 July 2017 - 05:59 PM

IC 4213

 

6 x 15 s = 90 s

IC 4213_Stack_6frames_90s.jpg

 

9 x 15 s = 135 s

IC 4213_Stack_9frames_135s.jpg

 

 


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#4 roelb

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Posted 27 July 2017 - 06:00 PM

M 3

 

3 x 1 s = 3 s

M 3_Stack_3frames_3s.jpg


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#5 roelb

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Posted 27 July 2017 - 06:01 PM

M 5

 

1 s

M 5_Stack_1frames_1s.jpg


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#6 roelb

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Posted 27 July 2017 - 06:02 PM

M 13

 

3 x 1 s = 3 s

M 13_Stack_3frames_3s.jpg


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#7 roelb

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Posted 27 July 2017 - 06:03 PM

M 29

 

1 s

M 29_Stack_1frames_1s.jpg


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#8 roelb

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Posted 27 July 2017 - 06:04 PM

M 51

 

4 x 8 s = 32 s

M 51_Stack_4frames_32s.jpg


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#9 roelb

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Posted 27 July 2017 - 06:05 PM

M 53

 

1 s

M 53_Stack_1frames_1s.jpg


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#10 roelb

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Posted 27 July 2017 - 06:06 PM

M 56

 

2 x 2 s = 4 s

M 56_Stack_2frames_4s.jpg


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#11 roelb

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Posted 27 July 2017 - 06:07 PM

M 63

 

5 x 8 s = 40 s

M 63_Stack_5frames_40s.jpg

 

10 x 8 s = 80 s

M 63_Stack_10frames_80s.jpg


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#12 roelb

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Posted 27 July 2017 - 06:09 PM

M 64

 

6 x 5 s = 30 s

M 64_Stack_6frames_30s.jpg

 

18 x 5 s = 90 s

M 64_Stack_18frames_90s.jpg


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#13 roelb

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Posted 27 July 2017 - 06:10 PM

M 82

 

3 x 4 s = 12 s

M 82_Stack_3frames_12s.jpg

 

17  x 4 s = 68 s

M 82_Stack_17frames_68s.jpg


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#14 WALee

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Posted 27 July 2017 - 06:11 PM

HI Roel,

I really like your pictures. And you did it with the Nexstar 6 SE (Wow!). Most impressive.

 

Tony


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#15 roelb

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Posted 27 July 2017 - 06:12 PM

M 92

 

1 s

M 92_Stack_1frames_1s.jpg

 

6 x 0.5 s = 3 s

M 92_Stack_6frames_3s.jpg


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#16 roelb

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Posted 27 July 2017 - 06:13 PM

M 94

 

8 x 2 s = 16 s

M 94_Stack_8frames_16s.jpg

 

27 x 2 s = 54 s

M 94_Stack_27frames_54s.jpg


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#17 roelb

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Posted 27 July 2017 - 06:16 PM

M 97

 

4 x 15 s = 60 s

M 97_Stack_4frames_60s.jpg

 

7 x 10 s = 70 s

M 97_Stack_7frames_70s.jpg


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#18 roelb

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Posted 27 July 2017 - 06:17 PM

M 102

 

5 x 3 s = 15 s

M 102_Stack_5frames_15s.jpg

 

13 x 3 s = 39 s

M 102_Stack_13frames_39s.jpg


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#19 roelb

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Posted 27 July 2017 - 06:19 PM

M 106

 

5 x 4 s = 20 s

M 106_Stack_5frames_20s.jpg

 

13 x 4 s = 52 s

M 106_Stack_13frames_52s.jpg


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#20 roelb

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Posted 27 July 2017 - 06:20 PM

M 108

 

4 x 6 s = 24 s

M 108_Stack_4frames_24s.jpg


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#21 roelb

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Posted 27 July 2017 - 06:21 PM

M 109

 

5 x 8 s = 40 s

M 109_Stack_5frames_40s.jpg

 

13 x 8 s = 104 s

M 109_Stack_13frames_104s.jpg


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#22 roelb

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Posted 27 July 2017 - 06:23 PM

NGC 2276

 

3 x 15 s = 45 s

NGC 2276_Stack_3frames_45s.jpg

 

16 x 15 s = 240 s

NGC 2276_Stack_16frames_240s.jpg


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#23 roelb

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Posted 27 July 2017 - 06:25 PM

NGC 2336

 

6 x 15 s = 90 s

NGC 2336_Stack_6frames_90s.jpg

 

21 x 8 s = 168 s

NGC 2336_Stack_21frames_168s.jpg


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#24 roelb

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Posted 27 July 2017 - 06:26 PM

NGC 3953

 

6 x 8 s = 48 s

NGC 3953_Stack_6frames_48s.jpg

 

17 x 4 s = 68 s

NGC 3953_Stack_17frames_68s.jpg


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#25 roelb

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Posted 27 July 2017 - 06:27 PM

NGC 4490

 

5 x 4 s = 20 s

NGC 4490_Stack_5frames_20s.jpg

 

25 x 4 s = 100 s

NGC 4490_Stack_25frames_100s.jpg


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