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EAA Monthly Observing Challenge - June 2021

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#26 drprs8181

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Posted 08 June 2021 - 08:07 AM

Went back from M64 last night.  Got the GSO 0.5 focal reducer and was playing with that.  Had beautiful teardrops at the full working distance, but at 0.8 stars were only a bit eggy.  Guess that means a new camera if I want wider fields grin.gif

 

Equipment:

  • AT80ED
  • ZWO ASI224MC
  • AZ-GTe Mount in Alt-Az mode
  • GSO 0.5 Reducer...set for 0.8

Details:

  • Images live stacked in Sharpcap, darks and flats applied, histogram adjusted then "Save as seen"
  • Bortle 6

 

M64 -  6/7/21 @ 2230  -  33x10s | Gain 300 - Transparency: Good/Very Good - AT80ED

M64 AT80ED FR

Edited by drprs8181, 08 June 2021 - 08:09 AM.

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#27 Alien Observatory

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Posted 08 June 2021 - 01:38 PM

Went back from M64 last night.  Got the GSO 0.5 focal reducer and was playing with that.  Had beautiful teardrops at the full working distance, but at 0.8 stars were only a bit eggy.  Guess that means a new camera if I want wider fields grin.gif

 

Equipment:

  • AT80ED
  • ZWO ASI224MC
  • AZ-GTe Mount in Alt-Az mode
  • GSO 0.5 Reducer...set for 0.8

Details:

  • Images live stacked in Sharpcap, darks and flats applied, histogram adjusted then "Save as seen"
  • Bortle 6

 

M64 -  6/7/21 @ 2230  -  33x10s | Gain 300 - Transparency: Good/Very Good - AT80ED

I feel compelled to say congrats and a very good job with very modest mount and telescope.  I am sure it takes a bit of learning and effort to get to this point, but clearly demonstrates what can be done with a small aperture telescope, low cost alt az mount and a smaller 1/3 sensor cam.  TY for your contribution...  Pat Utah :)


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#28 drprs8181

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Posted 08 June 2021 - 04:18 PM

I feel compelled to say congrats and a very good job with very modest mount and telescope.  I am sure it takes a bit of learning and effort to get to this point, but clearly demonstrates what can be done with a small aperture telescope, low cost alt az mount and a smaller 1/3 sensor cam.  TY for your contribution...  Pat Utah smile.gif

Appreciate it sir!  I've only got about 4 nights worth of imaging experience at this point so I welcome any and all hints/tips/tricks/voodoo spells/etc. that folks have to offer.

And thanks to all that have contributed to the knowledge base.  Between SharpCap user guides, equipment setup recommendations, reading everyone's settings and observation notes...it's all been exceedingly helpful in getting started.


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#29 Bob Campbell

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Posted 08 June 2021 - 07:08 PM

Appreciate it sir!  I've only got about 4 nights worth of imaging experience at this point so I welcome any and all hints/tips/tricks/voodoo spells/etc. that folks have to offer.

And thanks to all that have contributed to the knowledge base.  Between SharpCap user guides, equipment setup recommendations, reading everyone's settings and observation notes...it's all been exceedingly helpful in getting started.

I'm a newbie as well in AP/EAA, and I can say practice, practice, practice. Get out as much as you can, and you will pick up little things as you go on. I assume you know of the sharpcap forums? Robin is really good in interacting, and many of the nuances of use are covered there.

 

You do appear to be a natural, so keep up the good work!

 

Bob


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#30 drprs8181

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Posted 09 June 2021 - 07:19 AM

I'm a newbie as well in AP/EAA, and I can say practice, practice, practice. Get out as much as you can, and you will pick up little things as you go on. I assume you know of the sharpcap forums? Robin is really good in interacting, and many of the nuances of use are covered there.

 

You do appear to be a natural, so keep up the good work!

 

Bob

I’ll certainly check it out, thanks!



#31 PeterAB

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Posted 09 June 2021 - 09:06 AM

Hello,

 

I took another try at M64.   Switched from my Mak with a reducer to my AWB OneSky reflector.    Focal length is more manageable at 650mm.    Focus was tricky.   The OneSky is set up for visual with its focuser.  

 

M64 is just visible visually with my telescopes from my backyard as a fuzzy blur.    The 210 second exposure makes a big differenece. 

 

 

I'm having a little trouble with color balance since I upgraded to SharpCap Pro.   Image looks better converted to B&W.   This image is as viewed.

 

M64 Stack 14frames 420s

 

 

14 15-second exposures.    No post processing.   Uncropped.  Hysterogram stretched.  Gain 15.  130mm AWB OneSky reflector on a CG-4 mount with a motor.   Svbony sv305 pro.   City backyard 3.5 naked eye limiting magnitude.

 

Peter


Edited by PeterAB, 09 June 2021 - 05:21 PM.

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#32 YossiZ

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Posted 10 June 2021 - 03:12 AM

Most targets are visible very late at night from my balcony.

 

SW Mak 150mm @ f/7.5, ASI178MC, unguided, no filters, darks only, ASILive, high gain, bortle 6.

 

M64, 21x30s binning 2x2:

Light_Stack_21frames_ASILive_30sec_Bin2_30.3C_gain270_2021-06-10_002212.jpg

 

M5, 8x20s binning 1x1:

Light_Stack_8frames_ASILive_20sec_Bin1_30.5C_gain270_2021-06-09_234935.jpg

 

M5 @ f/12 (without FR), 5x20s binning 1x1:

Light_Stack_5frames_ASILive_20sec_Bin1_30.0C_gain270_2021-06-09_232445.jpg


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#33 russ75

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Posted 10 June 2021 - 01:50 PM

After a three month break with everything packed up, I got the rig into the backyard, reassembled, rewired, checked out, and polar aligned. Despite doing a lot of troubleshooting and tweaking, I managed to image three of this month’s challenge objects. Unfortunately, I was so rusty after the three month hiatus that I forgot to save the live-stacked image of M64, the Black Eye Galaxy. I did, however, make a screenshot of the image as it was being captured and stacked in SharpCap.  Images resized and compressed for upload.

 

Details:
Celestron C8 (203mm f/10) with f/6.3 focal reducer
ZWO ASI224MC
CGEM Mount

 

Per Astrometry.net: FOV:  13.5’x10.1’ 

 

M5: 31 frames at 10 sec, unguided.

M5 Globular Cluster

 

M16 Eagle Nebula: 19 frames at 45 sec, guided with PhD2.

M16 Eagle Nebula

 

M64 Black Eye Galaxy: 15 frames at 30 sec, unguided.

M64 Black Eye Galaxy


Edited by russ75, 10 June 2021 - 01:50 PM.

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#34 mikenoname

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Posted 11 June 2021 - 01:44 AM

Did the objects that were high enough in the sky during my livestream tonight:

 

https://youtu.be/rD_RVimx-a4

 

Scope: TPO 6" f/4 Imaging Newtonian
Camera: ZWO ASI533MC
Mount: Celestron Evolution AltAz + Wedge on homemade pier
Planetarium Software: Stellarium
EAA Stacking Software: SharpCap Pro 4.0 beta
Broadcast Software: Open Broadcaster Studio
Sky: Bortle 2
Background Music: Jesse Gallagher (nightimegallagher.com)


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#35 bmcclana

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Posted 11 June 2021 - 02:08 PM

Had a good clear night last night. I setup the C5 with the 0.63 RC and a newly received Denkmeier Star Sweeper 1.25" reducer.  some quick indoor tests put the combination at around 0.3x total reduction, but solving these images gives a focal length of 441mm which gives about 0.35x from the native 1250mm.  I am super happy with these results and the increased FOV. 

 

C5 with stacked 0.63 and starsweeper, UV/IR cut filter. PlayerOne Mars-C (IMX462) Gain 225, mounted on AZ-GTi. Captured in Sharpcap 4.0b Pro, dark frame (mismatched but better than nothing), no flat, as captured except for Crop and Jpeg. 

 

have some nice long captures since I was letting this cook while doing some other things.

 

M64 8s x 68 (9 min)

M64_68frames_544s.jpg

 

M16 8s x 113 (15 min)

M16_113frames_904s.jpg  


Edited by bmcclana, 11 June 2021 - 02:12 PM.

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#36 bmcclana

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Posted 11 June 2021 - 02:09 PM

setup as above...

 

M17 8s x 83 (11 min)

M17_83frames_664s.jpg

 

M5 8s x 29 (3.9min)

M5_29frames_232s.jpg

 


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#37 tgrlx200

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Posted 12 June 2021 - 02:24 AM

Has anyone been able to get M1-92? Are any special filters required.

#38 Alien Observatory

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Posted 12 June 2021 - 08:28 AM

Has anyone been able to get M1-92? Are any special filters required.

Here is a CN link to some observations of M1-92.   Pat Utah :)

https://www.cloudyni...bula-in-cygnus/



#39 drprs8181

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Posted 13 June 2021 - 07:57 AM

I wanted a second stab at M57.   I let it get higher up and this one came out a bit better.
 
For the Cat's Eye I took several series with varying gain and exposure settings, pushing and pulling the sliders...but the best I could do was "pale blue oblong star".  Maybe I hit the end of the scope's capability as far as detail is concerned, but I'm open to any tips.  I did get NGC 6552 to show up.
 
IC 1470 was a cool target.
 
For M1-92 I couldn't figure out how to search it directly in the SynScan app.  I started at Albiero and manually slewed over to the area.  If Stellarium is to be believed, with my scope and cameras FOV, putting 9 Cyg in the upper right means M1-92 is the fuzzy star just below and left of the star that makes the apex of a right triangle with the blue star just below left center.  I'm not sure I even really got it, but maybe someone with more horsepower can use this image as a roadmap.
 
Equipment:
  • AT80ED
  • ZWO ASI224MC
  • AZ-GTe Mount in Alt-Az mode

Details:

  • Images live stacked in Sharpcap, darks and flats applied, histogram adjusted then "Save as seen"
  • Bortle 6
 
M57 - 6/13/21 @ 0015  -  37x15s | Gain 300 - Transparency: Very Good - AT80ED
Dumbbell Nebula AT80ED
 
C6 - 6/12/21 @ 2310  -  112x5s | Gain 370 - Transparency: Very Good - AT80ED
Cat's Eye Nebula AT80ED
 
IC 1470 - 6/13/21 @ 0030  -  41x12s | Gain 350 - Transparency: Very Good - AT80ED
IC 1470 Pearl on Tongue AT80ED
 
M1-92 Footprint Nebula (maybe) - 6/13/21 @ 0115  -  23x15s | Gain 350 - Transparency: Very Good - AT80ED
m1-92 Footprint Nebula

 


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#40 alphatripleplus

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Posted 13 June 2021 - 09:31 AM

Surprisingly we weren't completely clouded out last night, and I got to a couple of targets between the clouds.  Set-up was my C8 @ f/3.7 (stacked twin f/6.3 reducers), ASI290MM mini at high gain, no filters, no binning, using ASILive vs 1.4. It was a hot night, with my uncooled camera sensor at or above 28C, so darks were a must:

 

 

M64; 30 x 10s; 

 

M64_f3.7_Light_Stack_30frames_10sec_RS_Bin1_28.5C_gain300_2021-06-12_222246.jpg


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#41 alphatripleplus

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Posted 13 June 2021 - 09:34 AM

Same set-up as above, but here is a quick comparison of a single 5 sec exposure with a  10 x 5sec stack for M5. (Click on image for a zoomed view):

 

 

M5; single 5 sec exposure:

 

M5_f3.7_Light_Stack_1frames_5sec_RS_Bin1_28.1C_gain300_2021-06-12_223131.jpg


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#42 alphatripleplus

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Posted 13 June 2021 - 09:36 AM

M5; 10 x 5 sec;

 

M5_f3.7_Light_Stack_10frames_5sec_RS_Bin1_28.0C_gain300_2021-06-12_223306.jpg

 

 

The stack gets rid of a bit of the background noise, and a longer stack would smooth it out even more.


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#43 GaryShaw

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Posted 13 June 2021 - 10:18 AM

For M1-92 I couldn't figure out how to search it directly in the SynScan app.  I started at Albiero and manually slewed over to the area.  If Stellarium is to be believed, with my scope and cameras FOV, putting 9 Cyg in the upper right means M1-92 is the fuzzy star just below and left of the star that makes the apex of a right triangle with the blue star just below left center.  I'm not sure I even really got it, but maybe someone with more horsepower can use this image as a roadmap.

 

 

 

If SynScan allows, you can enter the RA and Dec directly to get to the Footprint. After the slew, you should do a Plate Solve and the target should be centered. You can then work in Sharpcap live stacking histogram to stretch and fuss with the settings to try to bring the Footprint into view. 
 

Most of these objects don’t enter my view window until 3:00 AM so I haven’t been able to attempt them yet but the procedure above is what I’ll use for the most challenging. I hope I get clear skies late in the month when I’ll have a chance at them. As luck would have it, the Moon becomes a challenge then.

Good Luck!

Gary


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#44 drprs8181

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Posted 13 June 2021 - 11:14 AM

Ooh, I didn't think of using the coordinates. I'm in AltAz mode, would the mount still take RA/Dec coordinates? I haven't tried plate solving, though I started to read up on it.

I fussed with and stretched that histogram as much as I could. I still need lots more practice. I might go back with the Z130 and stack for as long as it will track and see if we can tease out more detail.

Thanks for the tips!

#45 GaryShaw

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Posted 13 June 2021 - 12:44 PM

My iOptron AZ Mount Pro takes Ra and Dec coordinates but I don’t know about yours. After ignoring plate solving for a year or so of learning EAA, I finally tried it and now use it all the time. Even if my slews pretty much center the target, I use it to sync the mount so I have a good slew to the next target. It’s not hard to learn and it’s super easy to use if you are using Sharpcap for observing.

Gary


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#46 Alien Observatory

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Posted 13 June 2021 - 04:04 PM

Did a little sleuthing of your M1-92 image and got this at the Bottom Left-hand Corner...  Pat Utah smile.gif

Attached Thumbnails

  • Anet_Solve .jpeg
  • Anet_Solve_Crop.jpeg
  • M1-92 Crop.jpg

Edited by Alien Observatory, 14 June 2021 - 09:59 AM.

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#47 tgrlx200

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Posted 13 June 2021 - 07:49 PM

Pat, what at program did you use to identify that?

Tim

Edited by tgrlx200, 13 June 2021 - 08:26 PM.


#48 Alien Observatory

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Posted 13 June 2021 - 08:18 PM

Pat, what at program did you use to identify that?

Atrronomy.net.   I used the full size and a crop to narrow down the search area, then compared with Sky Safari 6...  Pat Utah smile.gif

 

https://nova.astrometry.net/upload


Edited by Alien Observatory, 13 June 2021 - 08:19 PM.

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#49 bmcclana

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Posted 14 June 2021 - 03:12 PM

I went after the rest of the list last night. tried longer exposures AND higher gain which really seemed to improve the signal to noise markedly.

 

C5 with stacked 0.63 and starsweeper, UV/IR cut filter. PlayerOne Mars-C (IMX462), mounted on AZ-GTi. Captured in Sharpcap 4.0b Pro, dark frame (mismatched but better than nothing), no flat, as captured except for Crop and Jpeg.

 

IC1470  15s x 20 frames (5 min) Gain 350

 

IC1470_20frames_300s.jpg

 

Cats Eye 7.5s x 40 frames (5 min) Gain 150

 

Cats Eye_40frames_300s.jpg

 

I tried to stretch it to show some texture in the nebula and managed to get a little along with the central star (or at least a brighter spot in the middle grin.gif ). I also cropped really close since most of the stars are lost due to the stretch.  This one sure is bright. 

 

 

 


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#50 bmcclana

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Posted 14 June 2021 - 03:31 PM

M1-92.... all I can say is I tried.....

 

same setup as above

 

15sx44 frames 660s (11min)  Gain 350

 

M1_92_44frames_660s 2.jpg

 

here is the solve/annotation of the raw stack from ASTAP (sorry for the flipped orientation)

 

M1_92 solve.jpg

 

Its on the frame, but nothing obviously visible (small circle top-middle).  But once I looked up the size (8x16 ArcSeconds), it would only be a couple pixels wide. I think it would take a lot more focal length to get this one to show up.

 

If I really dig into the raw stack there is a smudge that is about the right spot that looks a little different than the noise that is 3x2px..... hmm.gif

 

 

 


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