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EAA Monthly Observing Challenge - June 2020

EAA observing observing report
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#1 GaryShaw

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Posted 31 May 2020 - 01:31 PM

Welcome to the June EAA Observing Challenge

 

This month’s challenge takes us across the warming western skies from South towards the Northwest. In case your home observing spot faces west, that's pretty convenient...but...I’ve also included a few objects that may get you to move briefly out of the comfort of your home turf.

 

 

The list includes a comet, several galaxy-supernovae and a variety of beautiful and unusual galaxy types and interactions.  In rough ‘transit time’ order, the June lineup is listed in the table below. There are some interesting and challenging objects on the list so, hopefully, they’ll be fun and educational to observe.

 

One final note to add is that my mount is currently enjoying a well-deserved rest and is now visiting the iOptron shop for a nice little tune-up. Hence, below you will find only a few of the captures from the listing of Challenge objects - those that I had managed to obtain earlier in May before my mount left on it's short  (I hope) vacation.

 

Chart.png

 

 

 

 

Challenge Info Continues in next post


Edited by GaryShaw, 31 May 2020 - 05:59 PM.

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#2 GaryShaw

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Posted 31 May 2020 - 01:49 PM

M 61 showing the SN2020jfo - note the rotated view ( 38 frames at 12 secs, Gain at 300 )

M61SN2020jfoStack_38frames_456s_WithDisplayStretch.jpg

 

 

NGC 4438/4435 The Eyes Galaxies ( 42 frames at 12 secs, Gain at 300 )

NGC4435_Stack_42frames_504s_WithDisplayStretch.jpg

 

Continued in the next post...


Edited by GaryShaw, 31 May 2020 - 05:52 PM.

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#3 GaryShaw

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Posted 31 May 2020 - 02:01 PM

M 88 ( 30 frames at 15 secs and Gain at 285)

M88_Stack_30frames_450s_WithDisplayStretch.jpg

 

 

 

Continued in next post 


Edited by GaryShaw, 31 May 2020 - 05:50 PM.

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#4 GaryShaw

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Posted 31 May 2020 - 02:10 PM

M 91 ( 39 frames at 15 secs and Gain at 300 )

M91_Stack_39frames_585s_WithDisplayStretch.jpg

 

 

NGC 4567 Siamese Twins A&B ( 34 frames at 15 secs and Gain at 300 )

NGC4567_Stack_34frames_510s_WithDisplayStretch.jpg

 

 

 

 

continued in the next post


Edited by GaryShaw, 31 May 2020 - 05:54 PM.

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#5 alvarete

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Posted 31 May 2020 - 02:17 PM

Fantastic objects an images.
Many thanks for such a recomendations!
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#6 GaryShaw

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Posted 31 May 2020 - 02:18 PM

NGC 4676 ( 65 frames at 15 secs and Gain at 300 )

NGC4676_Stack_65frames_975s - Copy.jpg


Edited by GaryShaw, 31 May 2020 - 05:54 PM.

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#7 roelb

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Posted 31 May 2020 - 07:10 PM

Nice challenge listwaytogo.gif



#8 Alien Observatory

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Posted 31 May 2020 - 10:02 PM

Not sure as how the new Hyperstar will work on these objects, but I will try a few fo them.... Pat Utah :)



#9 alphatripleplus

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Posted 12 June 2020 - 08:32 AM

Wow, a lot of galaxies to choose from. I tried a couple (before moonrise) that are new to me last night using a C8 @ f/3.7, ASI290MM mini, no filters, no binning and the latest ASILive 1.1.1 at the High Gain setting:

 

The Siamese twins (NGC4567 and NGC4568); 36 x 10s;

 

NGC4567, NGC4568_Light_Stack_36frames_10sec_f3.7_RSR_Bin1_23.6C_gain300_2020-06-12_001811.jpg


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#10 alphatripleplus

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Posted 12 June 2020 - 08:37 AM

Same set-up as above.

 

The Mice Galaxies (NGC4676A and B); 14 x 25s;

 

NGC4676A_Light_Stack_14frames_25sec_f3.7_RS_Bin1_23.2C_gain300_2020-06-12_004306.jpg


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#11 alphatripleplus

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Posted 14 June 2020 - 11:13 AM

Last night I got around to viewing another target I had not seen before - the Antenna Galaxies. Focus was a bit soft, but I had just figured out that light from my laptop was bouncing off my dew shield, and fixed that issue, so I wasn't too bothered with the focus.

 

Same set-up as before. You can just barely make out the curved antennas, stretching toward the top (north) and bottom (south) of the field.

 

NGC4038, NGC4039 (Antenna Galaxies); 15 x 25s;

 

NGC4038, NGC4039_Light_Stack_15frames_25sec_f3.7_RSR_Bin1_23.5C_gain300_2020-06-13_231828.jpg


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#12 Rickster

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Posted 14 June 2020 - 07:13 PM

This month's objects are a bit low in the sky for my area which tends to have poor skies this time of year.  So this less sky I have to look through the better.  I typically try not to stray beyond 30 degrees away from zenith.  None-the-less, we had brief periods of average seeing (according to Astrospheric) which I consider to be exceptional this time of year.  I got what I thought were some decent shots, considering.  And I have thrown in a couple of interesting objects that were closer to zenith. All shots were taken near midnight on the nights of either 6/11/2020 or 6/13/2020.  SW 16in collapsible Newt on GEM, ASI183MM Pro, GSO coma corrector, no filters, or flats.  Darks were applied on 6/13.  Sharpcap Pro.  Saved as viewed. (Some are cropped.  All are PNG converted to jpg to reduce file size)

First up  NGC4438, The Eyes, 20x30sec, Bin 2,  -10C,  gain 250, darks applied.

Now, before anyone asks...No, those aren't dust bunnies in the fringe of the big eye.  That is galactic dirt.  And yes, those egg shaped stars are due to tilt.  I was using a SVBONY helical focuser to fine tune my coma corrector.  The helical focuser has some sag, but it worked great for finding the optimum spacing.

Attached Thumbnails

  • NGC 4438 20x30sec 16in ASI183MM CC darks.jpg

Edited by Rickster, 14 June 2020 - 07:46 PM.

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#13 Rickster

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Posted 14 June 2020 - 07:25 PM

Siamese twins (NGC4567 and NGC4568), 21x30sec, darks applied, otherwise the same as above.

Attached Thumbnails

  • Siam twins 21x30sec 16in 183MM CC d b2.jpg

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#14 Rickster

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Posted 14 June 2020 - 07:44 PM

C2017 T2 PANSTARRS, 20x30sec, same as above

 

No crop.  This guy is pretty big.

Attached Thumbnails

  • C2107 T2 Pannstars 16in ASI183MM CC d b2.jpg

Edited by Rickster, 14 June 2020 - 07:47 PM.

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#15 Rickster

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Posted 14 June 2020 - 08:01 PM

The Mice, NGC4676 20x30sec, no darks applied

Attached Thumbnails

  • NGC4676 Mice 20x30sec 16in ASI183MM CC b2.jpg

Edited by Rickster, 14 June 2020 - 08:02 PM.

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#16 Rickster

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Posted 14 June 2020 - 08:10 PM

This is an add on for those who prefer to shoot closer to zenith.

NGC4490 19x30sec, no darks, otherwise the same.

 

 

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  • NGC4490 19x30sec 16in ASI183MM CC b2.jpg

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#17 Rickster

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Posted 14 June 2020 - 08:28 PM

Another near zenith add on

NGC 5906, 20x30sec, no darks

I was surprised at how big this one was when I got it in the scope.

 

 

Attached Thumbnails

  • NGC5906 20x30sec 16in ASI183MM CC b2.jpg

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#18 alphatripleplus

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Posted 14 June 2020 - 08:39 PM

Very nice, Rick. NGC4490 is one that I am going to have to try some time!


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#19 GaryShaw

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Posted 15 June 2020 - 11:34 AM

These are real nice Rick...

 

BTW, my apologies for the low altitudes. When my mount decided a vacation to iOptron was in order, I ended up using some objects I’d observed the month before but realized some would be optimized for early June and some were going to be low. Thank you for adding in the two higher objects. When I get my mount back, I’ll enjoy giving them a try. 
 

Gary

 

ps: do egg-shaped stars always indicate ‘tilt’ problems? I’ve seen that in some ( not sure about all) images with my newish 200 mm F4 Newt and wondered if it was coma or a collimation problem.



#20 Rickster

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Posted 15 June 2020 - 07:39 PM

ps: do egg-shaped stars always indicate ‘tilt’ problems? I’ve seen that in some ( not sure about all) images with my newish 200 mm F4 Newt and wondered if it was coma or a collimation problem.

Egg shaped stars can come from a host of issues such as;  collimation, bad tracking, bad polar alignment, tilt, mirror flop...  To be fair to SVBONY, the tilt was only partially due to their adapter.  I know from past nights that I can expect some tilt whenever I am not close to zenith.  I have been trying to track that tilt down for some time.  In this case, the tilt was worse, and I had swapped out my usual adapters for the SVBONY adapter.  I could feel side to side play in the SVBONY adapter.    So I knew it was contributing.



#21 roelb

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Posted 30 June 2020 - 04:36 PM

All done with Evo 8 except the last one

 

C_2017 T2 PANNSTARS_ZWO ASI533MC Pro_15 x 30,0s  with NGC 4100

C_2017 T2 PANNSTARS_ZWO ASI533MC Pro_15 x 30,0s = 450s_21-6-2020T00_35_55.jpg

 

M 61_ZWO ASI533MC Pro_33 x 45,0s

M 61_ZWO ASI533MC Pro_33 x 45,0s = 1155s_16-5-2020T23_38_37_SN2020jfo.jpg

 

M 88_ZWO ASI533MC Pro_20 x 30,0s

M 88_ZWO ASI533MC Pro_20 x 30,0s = 600s_17-5-2020T00_44_50.jpg

 

M 91_ZWO ASI533MC Pro_15 x 30,0s

M 91_ZWO ASI533MC Pro_15 x 30,0s = 450s_17-5-2020T00_35_58.jpg

 

NGC 2841_ZWO ASI533MC Pro_18 x 30,0s

NGC 2841_ZWO ASI533MC Pro_18 x 30,0s = 540s_23-6-2020T00_03_35.jpg

 

NGC 4435+38 - The Eyes _ZWO ASI224MC_Stack 20 frames_Tot.Exp. 452s

NGC 4435+38 - The Eyes _ZWO ASI224MC_Stack 20 frames_Tot.Exp. 452s_2018-03-20T23_01_04_annotated.jpg

 

NGC 4676_ZWO ASI533MC Pro_15 x 30,0s

NGC 4676_ZWO ASI533MC Pro_15 x 30,0s = 450s_23-6-2020T00_21_19.jpg

 

NGC 5906_ZWO ASI533MC Pro_15 x 40,0s

NGC 5906_ZWO ASI533MC Pro_15 x 40,0s = 600s_23-6-2020T00_57_02.jpg

 

NGC.4038.39.-.C.60.61.-.Arp.244.-.Antennea.Spiral.Galaxy.in.Corvus

10 x 15 s with Lodestar X2 Mono on 6 SE @ f/5

NGC.4038.39.-.C.60.61.-.Arp.244.-.Antennea.Spiral.Galaxy.in.Corvus_16.05.02.jpg


Edited by roelb, 30 June 2020 - 04:37 PM.

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#22 GaryShaw

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Posted 30 June 2020 - 05:04 PM

Very nice work Roel. I like how you held it all until June 30 - a nice touch with your timing - to end the month with a grand finale.... 

 

Cheers and congratulations to everyone who submitted- I hope you enjoyed observing this months challenge objects. Have a great Summer, keep observing and stay well through this crazy time of covid.... it shall pass.

Gary


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#23 orionic

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Posted 02 July 2020 - 09:45 PM

Wow @roelb, your NGC2841 is orders of magnitude better than mine (also with Evo 8), I am amazed by all the texture you captured, it almost reminds me of M63 with that "flocculent" look...I will have to give it another try!

 

Edit - a day later - I realized that you posted a second image of M88 and labeled it as NGC2841.  I feel better now, my M88 is still not as good (noisier) but not by an 'order of magnitude'!  I am curious what gain you used for these?


Edited by orionic, 03 July 2020 - 11:57 AM.

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