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Monthly Observing Challenges for May 2019

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#1 cshine

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Posted 30 April 2019 - 07:04 PM

Hello and welcome to the May observing challenge!

 

Whatever your experience or equipment level please feel free to participate. It's always interesting to see the variety of results from different contributors. 

 

Warm-ups:

M57 "The Ring" - planetary nebula and white dwarf nucleus
M13 globular cluster - try to get the faint galaxy NGC 6207 in the same view
(8) Flora - this large asteroid reaches opposition on May 12 at about mag 10. Try to plot it's path over successive nights
M101 the Pinwheel galaxy - see if you can identify some of the many NGC objects in and around the spiral

 

Intermediate:
Hickson 44 - Leo Quartet galaxy cluster, less well known than the Triplet
C6 Cat's Eye - planetary nebula with nice detail available but it's quite faint
M87's jet - given the new found fame of the resident black hole let's see how much detail we can resolve in the relativistic jet itself
Arp23 - A pair of unusual single-arm'd spirals

   

Advanced:
Frosty Leo Nebula - try for some color and lobe detail on this cold protoplanetary nebula
Sextans A and B - dwarf galaxies on the edge of the Local Group

ARP242 The Mice - at a distance of 240Mly this is a small target

 

Southern hemisphere:
NGC 3918 - Blue Planetary
NGC 1763 - Emission nebula with embedded star cluster
NGC 3576 - Statue of Liberty nebula
NGC 6188 - Fighting Dragons nebula
NGC 7552 - Grus Quartet galaxies

 

Many thanks to Saguaro for sanity checking the Northern Hemisphere targets and Anduin for selecting most of the Southern targets.

 

Finally, please remember to include your acquisition details - equipment, software and exposure time.

 

Good luck!


Edited by cshine, 01 May 2019 - 08:56 AM.

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#2 Astro-Master

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Posted 30 April 2019 - 08:24 PM

I've seen The Mice, Ngc 4676A - B many times with my 18" Dob  its close to the Whale Galaxy NGC 4631.  The Mice is a good test for transparency, if the tidal tail on 4676A is easy to see, the transparency is good.

 

Through my friend's 20" Obsession in a bortle 7 zone on a night with excellent seeing we observed M 57 with 2000x, at that power all you could see was the hole in the ring with two central stars, it was amazing!



#3 Stargazer3236

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Posted 02 May 2019 - 07:47 AM

Here is my take on the Mice.

 

Nexstar 8SE OTA

iOptron ZEQ25

ASI294MC camera

SharpCap3.22 Pro

Meade F/6.3 R/C

 

NGC 4676, 400 gain, 2x2 bin, 24x15s, 125% zoom

ngc4676 400gain 2x2bin 24x15s 125p zoom_2.jpg

 

 


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#4 Astrojedi

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Posted 02 May 2019 - 11:39 PM

Great selection of objects... Here are the Mice Galaxies... we are seeing the cosmic drama of a galaxy interaction play out.. unfortunately our lives are nothing but an instant on the timescales of the universe... quite humbling...

 

EdgeHD 8 @ F5, ASI290 Mono & SharpCap Pro from my red/white LP backyard...

 

Mice screenshot.jpg


Edited by Astrojedi, 03 May 2019 - 01:12 PM.

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#5 saguaro

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Posted 04 May 2019 - 11:58 AM

Early May evenings are still surprisingly cool here in the desert west of Tucson, due to the low humidity. I used my 14Edge@F/7 (CCDT67 reducer) mounted on AP1600GTO, ZWO1600MC-C camera, SharpCap Pro 64-bit with master dark and master flat, no filters.

 

Here is M101, 5x60sec

 

M101-5x60sec-ss.jpg

 

Platesolved to id some of the NGC's:

 

M101 platesolve.JPG


Edited by saguaro, 04 May 2019 - 12:00 PM.

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#6 saguaro

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Posted 04 May 2019 - 12:00 PM

Same equipment as previous post

 

Hickson 44, 14x30sec

 

Hickson-44-14x30sec-ss.jpg

 

Hickson 44, 24x30sec

 

Hickson-44-24x30sec.jpg


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#7 saguaro

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Posted 04 May 2019 - 12:03 PM

Same equipment as previous post

 

Arp 23, 10x60sec. A very interesting pair!

 

Arp-23-10x60sec-ss.jpg

 

 

 

 


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#8 saguaro

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Posted 04 May 2019 - 12:04 PM

Arp 23, 10x60sec

 

ARP-23-10x60sec.jpg


Edited by saguaro, 04 May 2019 - 12:05 PM.

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#9 Stargazer3236

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Posted 04 May 2019 - 02:12 PM

Here is M101 and M13:

 

Nexstar 8SE OTA

iOptron ZEQ25

ASI294MC camera

SharpCap3.22 Pro

Meade F/6.3 R/C

 

M101, 2x2 bin, 400 gain, 25x15s, 66% zoom

m101 2x2bin 400gain 25x15s 66p zoom.jpg

 

M13, 300 gain, 1x1 bin, 1x8s, 50% zoom

m13 300gain 1x1bin 1x8s 2072x14102.jpg


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#10 rave3c0

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Posted 06 May 2019 - 05:00 AM

My humble attempts at some of this months challenges. Need to work more on the histogram tweeking, always learning. Hickson 44 and the Sextans A/B were quite the challenge to find, frame and image, but it was fun to try and learn.

Equipment:
C8 on AVX mount
ZWO 224MC
First run with double stacked FRs - Celestron F6.3 FR/FF and a cheap 0.5x FR from my RI2 kit. I got down to 625mm FL ~f/3
Sharp Cap 3.2 pro
CWPI and Stellarium

My fov was a little wide for some of these (never thought I'd say that using a 224MC and C8), if i get the chance i'd like to go back and reimage the smaller targets without as much focal reduction.

Thanks for looking

M57
58x6s 350gain w/dark sub
M57 Ring Nebula Stack  6sX350g 58frames 348s WithDisplayStretch


M13
34x6s 300gain w/dark sub
M13 Stack 6sX300g 34frames 204s WithDisplayStretch


M101 from my backyard
99x12s 350gain w/dark sub
M101 Pinwheel Galaxy Stack 12sX350g 99frames 1188s WithDisplayStretch


M101 From a friend's backyard
42x20s 350gain w/dark sub
M101 Stack 42frames 840s WithDisplayStretch


Capture3


Hickson 44
109x12s 350gain w/dark sub

Hickson 44 Stack 12sX350g 109frames 1158s WithDisplayStretch


(Not the Sextans A/B wink.gif

ARP242 - NGC 4676 - The Mice
101x12s 300gain w/dark sub 
ARP242 - NGC 4676 - The Mice - Stack 101frames 1212s

SharpCap Screen cap ARP242 - NGC 4676 - The Mice


Edited by rave3c0, 07 May 2019 - 12:30 AM.

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#11 CCD-Freak

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Posted 06 May 2019 - 12:29 PM

The only thing I shot from the list so far is M101  60 seconds ASI-1600MC-Cool 8" F5 imaging Newt  Rodeo, NM

 

EAA-M101-sm.jpg

 

 

John Love

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Edited by CCD-Freak, 06 May 2019 - 12:31 PM.

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#12 Anduin

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Posted 21 May 2019 - 10:23 PM

Finally a better sky, NGC3576 Statue of Liberty Nebula.

Ha filter
Sharpcap
71mm refractor
Asi1600mm @200 gain -15o C
10x1 minute
Polar alignment, Flats and darks, stretch and sharpening in Sharpcap . Cropped as the live zoom.


b9128411c539946ee5c9b13311311bf8.jpg


Enviado do meu iPhone usando Tapatalk

Edited by Anduin, 22 May 2019 - 07:51 AM.

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#13 saguaro

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Posted 26 May 2019 - 12:45 PM

We've been having the coolest May weather in 40-years here in Tucson. I'm still wearing my winter fleece for my evening observing sessions! I used my 40-year old 8-inch SCT on Evolution Alt-Az mount, Meade 3.3 reducer operating at F/4, ZWO 385MC camera with Astronomik UV/IR cut filter.

 

The Ring Nebula, 20x15sec, SharpCap Pro live stacking with master dark. Converted to JPG and cropped for posting here.

 

Ring Nebula 20x15sec.jpg

 


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#14 bdyer22

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Posted 28 May 2019 - 12:43 AM

Almost a year to the day since I last got any EAA time.  Here's my contribution:

 

LodestarX2 Mono with a 127Mak @ f12 no filters on AVX mount.  (note I'm aware the pic indicates f12.9, it's incorrect)

Clear skies, with average transparency and below average seeing.

 

Cat's eye nebula - the only capture that came out half decent.  But the night wasn't a bust, at least I was out under the stars! :)

 

Cat.s.Eye.nebula 2019.5.27 23.08.01

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#15 jmp_

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Posted 29 May 2019 - 07:43 PM

Some shots from last night (5/28). Finally the weather and moon are cooperating. smile.gif

 

Acquisition details:

  • AT80EDT
  • ASI290MM (L filter only tonight)
  • SharpCap live stacking
  • Cropped and converted to JPG for posting

 

Arp 23 (39 x 10 sec = 390 sec)

Arp23_39frames_390s_WithDisplayStretch.jpg

 

Arp 242 (25 x 20 sec = 500 sec)

Arp242_25frames_500s_WithDisplayStretch.jpg

 

M101 (46 x 15 sec = 690 sec)

M101_46frames_690s_WithDisplayStretch.jpg


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#16 jmp_

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Posted 30 May 2019 - 09:23 PM

A couple more shots. Same setup as my last post.

 

I tried reducing to unity gain and taking better darks. Still pretty grainy. Probably need more integration time and a lot less light pollution :/

 

 

M13 (15 x 30s = 450s)

I forgot to look for NGC 6207. Oh well.

 

M13_15frames_450s_WithDisplayStretch.jpg

 

M87 (22 x 30s =660s)

No jet but was able to pick up several faint fuzzies near to it.

 

M87_22frames_660s_WithDisplayStretch.jpg


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#17 bdyer22

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Posted 01 June 2019 - 01:48 AM

LodestarX2 Mono with a 127Mak @ f6ish no filters on AVX mount.
Clear skies, with average transparency and average seeing.

 

Hope you enjoy.

 

M87 - I think I managed to get the relativistic jet.  Look closely to the right of the object and I think it's just there.

M87 2019.5.31 23.46.58
 
M101 - Was hoping for more detail, but the mount tracking wasn't having it.
M101 2019.5.31 23.33.09
 
M57
M57 2019.6.1 00.38.40

 

M13

M13 2019.5.31 22.59.42
 
ARP242
ARP242 2019.6.1 00.24.18
 
ARP23
ARP23 2019.5.31 23.54.20

Edited by bdyer22, 01 June 2019 - 01:49 AM.

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#18 cshine

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Posted 01 June 2019 - 10:36 AM

I had a pretty rough month cloud-wise but I did manage a few semi-presentable captures. Unless otherwise noted  I used a C8 @ f6.3 with ZWO294 on an EQ6-R mount. Disclosure: a few of these were taken in late April in preparation for this challenge but it's my thread so I'll allow them  smile.gif

 

M13 with a hint of NGC6207, 10x60s

 

M13 10x60s.JPG

 

M57 14x90s (guided)

 

M57 14x90.JPG

 

M101 20x60s

 

M101-20x60s-1.JPG

 

Hickson 44 Leo Quartet  11x60s:

 

Leo 11x60s.JPG

 

M87 (lower right) with a hint of Jet 14x90s  20x25s (using a C11 @ F10, ZWO294)

 

M87 20 x25s.JPG

 

ARP23 (just about)  13x30s  (using a C11 @ F10, ZWO294) 

 

ARp23 13 x 30s.JPG

 

C6 Cat's eye 5 x 180s @ gain 376, guided:

 

C6 5x60s.JPG

   

I found The Mice but could derive no detail at all from here in the burbs. No trace found of the Sextans, did not try for the Frosty. Missed Flora opposition due to cloud.

 

Big thanks to everyone above for taking the time to participate in the challenge, hope y'all enjoyed it as much as I did.

 

Edit - corrected M81 exposure and added the missing exposure details for C6


Edited by cshine, 01 June 2019 - 04:59 PM.

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#19 Stargazer3236

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Posted 01 June 2019 - 01:09 PM

What exposure and gain for Cat's Eye over exposure for faint detail?



#20 cshine

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Posted 01 June 2019 - 04:59 PM

What exposure and gain for Cat's Eye over exposure for faint detail?

Added to the original post now, thanks for flagging. I struggled with the Cats Eye for a while and ended up experimenting with my longest subs to date (180s x 5) and then just stretching the heck out of it to see the faint outer detail. 

 

I failed to do my homework beforehand so I didn't realize that there was a small but very distinct inner core which is obviously brighter and so fully blown out in my shot. I need to have a go at getting some detail from that inner core with the C11 at some point. It may be a hopelessly naive quest but that hasn't stopped me yet!




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