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Goofi's Imaging Challenge, January 2020 - Dolphin nebula (Sh2-188)

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#1 nmoushon

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Posted 02 January 2020 - 12:43 AM

The January 2020 Challenge is now open. The target is Dolphin nebula (Sh2-188). To reduce the number of stickies, please submit your entry to this thread.

 

For those having troubles locating the target here is a post that will help locate near by objects. 

 

The Rules will remain pretty simple:

 

      Your Equipment

      Your Data, Captured This Season

      Your Processing

      One Entry Per Member

 

To increase participation over such a diverse group, the winner will be selected by random drawing. Please feel free to start a thread requesting guidance on your entry prior to submitting it, the whole purpose of this challenge is to learn and compare on a common target. Entries must be submitted by midnight eastern time on January 31, and I will try to announce the winner early in February.

 

Note: If I am late announcing, gently nudge one of the moderators in a private note, it helps. Seriously, PM one of us!

 

Please display an image in your post, not just a link!!

 

I hope everyone has fun with this one, and with that,

 

Let The Games Begin

 

**Disclaimer** - If the selected winner does not reply and pick a target with-in 3 days of the winner being announced, the Mods will then select the next target.

 

NEW RULE AS OF 01/10/2020 - When you post an image make sure it is your FINAL image. The mods will not be removing or updating posts with members images that have more integration time than their first image posted. Also, no posting two images.


 

#2 Gipht

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Posted 04 January 2020 - 12:15 AM

This picture was taken with ASI071MC-Pro  and the STC dual band filter on 1/2/20.  The telescope is an ES AR127, which is an achromatic  refractor, but seems to work reasonably well with color bands that pass the dual band filter.  20x4' at 200 gain and a temperature target of -5C.The mount was a CEM-60 guided.   Stacked in DSS and processed in Star Tools and Gimp.  The moon was fairly bright and may have washed out some of the detail in the nebula.

 

 

Attached Thumbnails

  • dolphin20x4.JPG

 

#3 elmiko

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Posted 04 January 2020 - 12:13 PM

https://astrob.in/s4c6jn/B/

The Dolphin Nebula is a Planetary Nebula in Cassiopeia. 5.7 arcmin in size.
Captured two evenings. First night I used the Optolong UV-IR filter 395 x 15 sec
Second night I used the Optolong L-eNhance filter 412 x 15 sec subs. Hyperstar 8" SCT Unguided. Seeing 5/10
Clear Skies, Mike

Attached Thumbnails

  • DolphinNebula_HS_UVIR_Lenhance_Combined_final_CN.jpg

Edited by elmiko, 04 January 2020 - 12:14 PM.

 

#4 DrGomer

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Posted 05 January 2020 - 07:12 PM

Full res image and details here  https://www.astrobin.com/rcafnc/

 

ASI533+SV80A with duoband filter.

 

Wasn't happy with the S/N with just 1 day exposure so added a second.  

Used 3 exposures for testing sake.  Could have just used 1. Integrated them all since the data was good using noise weighting.

 

Total of 15.7hrs.

210x120"
24x180"
90x300"

 

I do see some nebulosity that extends down to the right that I couldn't bring out more. I think it's real.

There is slight blueish halo around the nebula (about twice the diameter of main nebula) which is easier to see on the left side which doesn't have the extended nebulosity.  Not sure if it is real. I didn't use flats and used ABE  so it could be an artifact. Easier to see in the full image on astrobin.

The coolest surprise was that I picked up a galaxy I had no idea was there: PGC137850.  In my frame, its about a width below and slightly to the right. it's a faint diagonal. 

Attached Thumbnails

  • Final working file cropped-reduced.jpg

Edited by DrGomer, 05 January 2020 - 07:15 PM.

 

#5 Dereksc

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Posted 07 January 2020 - 03:20 PM

This is my attempt captured over the last two nights (rain coming in). Thanks for choosing this interesting target.

The image is quite wide field considering the subject but I was enjoying using the GT71 so much I did not want to switch it out.

 

Details:

Imaging telescope or lens:William Optics Gran Turismo 71 APO
Imaging camera:ZWO ASI1600MM-C
Mount:Skywatcher EQ6R Pro
Guiding telescope or lens:Orion 50 mm guidescope
Guiding camera:ZWO ASI174 Mini
Focal reducer:William Optics Flat6A-III
Software:Main Sequence Software Seqence Generator Pro 3
Filters:ZWO G 1.25",  ZWO R 1.25",  ZWO Hɑ 7nm 1.25",  ZWO B 1.25"
Accessory:Rigel Systems Focuser n-Step
Resolution: 4596x3408
Dates:Jan. 5, 2020,  Jan. 6, 2020
Frames:
ZWO B 1.25": 17x100" (gain: 76.00) -15C bin 1x1
ZWO G 1.25": 22x100" (gain: 76.00) -15C bin 1x1
ZWO Hɑ 7nm 1.25": 93x180" (gain: 200.00) bin 1x1
ZWO R 1.25": 25x100" (gain: 76.00) -15C bin 1x1
Integration: 6.4 hours
Darks: ~20
Flats: ~20
Flat darks: ~20
Avg. Moon age: 9.93 days
Avg. Moon phase: 75.64%
Bortle Dark-Sky Scale: 6.00
Pixel scale: 2.319 arcsec/pixel
Orientation: 89.369 degrees
Locations: Back Yard, Santa Cruz, CA, United States

 

Dolphin_NBRGB 3.jpg

 

Click on thumbnail for Astrobin data:

 

get.jpg?insecure

 

Regards

 

Derek


 

#6 AKHalea

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Posted 10 January 2020 - 05:45 PM

I was fascinated by this cool PN (Planetary Nebula) when I first saw it on ABin. It is  relatively big for a PN. Here is my rendition of the nebula with 8 hours of imaging time: 

 

1-4 2020 & 19 Dolphin Combo-70L-4Ha-5OIII 742Min STCrHubShrJ CN.jpg

 

I had imaged this nebula in November 2019 with the dual band filter, but felt it could be much better with additional OIII imaging time since it is a Planetary Nebula. Like many PNs, this nebula is round/elliptical, but it is much fainter to the lower right in my image. That is because the central progenitor star is moving fast thru the interstellar space and creating a shock wave in the direction of the movement. That shock wave is the brighter part we see on the left side of my image and the trailing side is very faint. The combined image above shows the nebula better and hints at the fainter nebulosity on lower right. 

 

We captured this from my suburban Houston, Tx backyard. The LP is quite high (Bortle 7/8 zone), so I used the narrowband filters to capture all the data. I used our Stellarvue Access 80mm scope fitted with an Orion 0.8x focal reducer/flattener and a filter. The mount was my iOptron iEQ 30Pro fitted with the PoleMaster for Polar Aligning. The imaging camera was an H-Alpha modded Nikon D5300 at ISO 800, f5.6 and a total of 8 hour of imaging time using 3 minute unguided subs.

 

These 8 hours of integration time comprised of 4.5 hours with the dual band filter on Nov 24, 2019 and 3.5 hours with an OIII filter on January 4, 2020. I used Omega Optical's NPB filter as the dual band filter. It has a 12nm bandpass at Ha line and a 25nm bandpass at OIII line that captures two OIII lines as well as H-Beta line. On January 4, 2020, I used Optolong's OIII filter with a 25nm wide bandpass around OIII. It also captures the 2 OIII line emissions and 500nm and the H-Beta emission.  

 

The two NB images were then combined in Astro Pixel Processor using their RGB combiine module and then post processed in Star Tools with finishing touches and cropping in FastStone image viewer. Enjoy!

 

Cheers & Clear skies ...... Anil


Edited by AKHalea, 11 January 2020 - 11:14 AM.

 

#7 tcchittyjr

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Posted 13 January 2020 - 07:06 PM

2020-01-SH2-188.jpg Here's my entry. Taken Jan 2 and 3 from my home NE of Orlando, FL. Jan 2nd, I took R/G/B one  hour each and on Jan 3rd I took Ha for 2 hours.  When I combined using PI, I used Ha for Red, instead of the Red subs.

 

Imaging camera: SX Trius SX 694 Pro CCD

Mount: Paramount MyT

Laptop: ASUS

No guiding.

3 minute subs on RGB, 5 minute subs on Ha.

 

 

 


 

#8 hahied

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Posted 16 January 2020 - 01:21 PM

 https://www.astrobin...i92cf0/?nc=user

 

Telescope: AP 130GT + QuadTCC f/4.5

Camera:  FLI MLx695

Date: Jan. 4  2020

Integration:  6.1 hours

Ha  26 x 600"

OIII  12 x 300"  bin 2x2

RGB   32 x 30"

Backyard  Bortle 7

Software: CCDStack 2,  MaximDL,  PS CC

 

 

Sh2-188 The Dolphin nebula_small.jpg

 

//Hans


Edited by hahied, 16 January 2020 - 01:22 PM.

 

#9 Cfreerksen

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Posted 18 January 2020 - 10:53 PM

SH2-188 Dolphin Nebula

 

My first shot at HSO and RGB combined.

 

Ha  20x420

SII  15x420

OIII 13x420

RGB 81x120

 

Total integration= 8.3hrs

 

Edge8 HD w/ .7 Reducer

CGX

ASI1600MM

OAG ASI174MM mini PHD2

NINA

PixInsight

 

Full Res: https://www.astrobin.com/nfsmn9/

 

Chris

 

 

 

Attached Thumbnails

  • DolphinReduced.jpg

 

#10 GoBlue

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Posted 22 January 2020 - 03:38 PM

Y'all were hoping ole GoBlue wouldn't show up to pollute this challenge per norm. Getting towards the end of the month, he isn't going to make it you say...wrong wrong wrong. The clouds have parted. Taken 1/21.

 

Presented in my patented whack focused, stars with legs, over saturated, sophomoric edited glory, I present the Dolphin (really?) nebula.

Had to input ra and dec numbers into go-to to find it because like many others, it is not in control library. Lame.

 

 

ES ed80 f/6

T3i w/ IDAS LPS D1.

Orion guide scope and cam.

AVX.

BYEOS, PHD2, DSS and PS with Astronomy Tools add on.

 

12 x 180 plus 45 x 120. 2 hrs 6 min total exposure.

No darks, lights or bias.

ISO 800.

Camera sensor temp +2c.

 

Carpe noctem.

 

 

Attached Thumbnails

  • dolphin nebula.jpg

 

#11 johnsoda

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Posted 22 January 2020 - 09:34 PM

Click on small image for better quality image and acquisition details.

 

get.jpg?insecure

 

dolphin.jpg


 

#12 rkelley61

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Posted 28 January 2020 - 08:17 PM

SH2-188-5.jpg

 

Images taken from my backyard on January 5, 6 and 26.

WO 81GT with Moonlite focuser/rotator
WO flattener
ASI1600MM PRO
Astronomik 6nm Ha, SII, OII filters
Astro-Tech AT65EDQ guidescope with ASI290MM
G11GT

 

Ha 175 @ 60s
SII 179 @ 60s

OIII 157 @ 60s

Total integration time = 8.5 hours

 

Captured using NINA, PHD2.  Images processed in PixInsight, HSO combination.


 

#13 RudiVM

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Posted 30 January 2020 - 04:43 PM

Unfortunately there were not enough clear nights to capture more data… well maybe next time….
RGB 3 x 60 x 30 sec
Ha 67 x 120 sec
Canon 500mm f4 at f5
NEQ6-Pro
Zwo Asi 1600 mm pro + EFW+ Zwo HaLRGB filters
Astromechanics canon ascom lens controller
Guiding PHD2
Image capturing: SGP
Processing: PI & CS6

Taken from my Bortle 6 Backyard

Attached Thumbnails

  • 5_Sh2-188.jpg

 

#14 Gene3

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Posted 30 January 2020 - 05:21 PM

I found SH2-188 to be a great target for my SVX152 & QHY16200a. Image scale 1.03 arcsec/px

I got 52 subs @ 20 minutes each in SHO (about 17 hours)

Darks: 20 Bias 50, Flats 30

Captured on 7Jan,10Jan,12Jan,13Jan, & 17Jan. Moon was pretty full

 

Processed in PI (many thanks to Ron Brecher for the PI expertise) using a synthetic Lum mask. Took full advantage of manipulating hue and saturation

final image is 50% crop

Attached Thumbnails

  • Sh2-188 SHO Jan 2020 CN5.jpg

Edited by Gene3, 30 January 2020 - 05:22 PM.

 

#15 TelescopeGreg

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Posted 31 January 2020 - 11:56 PM

Tick... Tick... Tick...  Time running out.  Small break in the clouds.  Threw a jacket on and hauled the scope out across the street to my imaging site.

 

Polar alignment, 1 star.  Quick focus on Ceph.  Slew to hand-entered coordinates.  Plate solve (Thank God for Plate Solving!) with the guide scope.  Notice that CCDciel lets you look up stuff in the catalog.  Brilliant!  Precision go-to.  Ha!

 

Forget guiding.  No time to get it running.  Fire off the intervalometer on the DSLR.  Also fire up CCDciel using the guide scope & camera as a backup.  It's a mono camera, so perhaps more sensitive with it's f/4.6 scope vs the unmodified DSLR on the f/7 main scope?  (Results actually similar!, but the DSLR looks better.)

 

92 subs.  No time to sort through them.  No flats, no darks.  Throw the raw lights into Sequator, take the result into Star tools.  BINGO!  Thar it is.  Almost dead center, just barely visible.  But it counts.  (Yes?)

 

Stellarvue 130

Nikon D3200 @ ISO 12,800

20 seconds x 91 subs

 

Stacked in Sequator, processed in StarTools

 

Astronomer out of breath...

Attached Thumbnails

  • 92 subs 20 sec from NEF.jpeg

Edited by TelescopeGreg, 31 January 2020 - 11:59 PM.

 

#16 nmoushon

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Posted 02 February 2020 - 11:55 AM

This months winning image is from Cfreerksen, post #9. 

 

Sorry for the delay in post everyone. And thank you to those who PM'd me a nice reminder.


 

#17 Cfreerksen

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Posted 02 February 2020 - 01:24 PM

Thanks, I had fun with this challenge. Thanks AKHalea for choosing the Jan challenge.It pushed me to do new things. I made the choice for the next target. I hope it works well for everyone from small refractors to larger scopes. 

 

Chris


Edited by Cfreerksen, 02 February 2020 - 01:27 PM.

 

#18 Gene3

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Posted 02 February 2020 - 03:17 PM

Thanks, I had fun with this challenge. Thanks AKHalea for choosing the Jan challenge.It pushed me to do new things. I made the choice for the next target. I hope it works well for everyone from small refractors to larger scopes. 

 

Chris

Hi Chris,

What is the target you choose for February?


 

#19 DrGomer

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Posted 02 February 2020 - 03:18 PM

Hi Chris,

What is the target you choose for February?

Curious too as tonight I'm going to have a reasonably clear night :-D


 

#20 rkelley61

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Posted 02 February 2020 - 04:27 PM

Me too, might be a couple of weeks before I get another chance :)


 

#21 Cfreerksen

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Posted 02 February 2020 - 07:00 PM

Hi Chris,

What is the target you choose for February?

 

 

Curious too as tonight I'm going to have a reasonably clear night :-D

 

 

Me too, might be a couple of weeks before I get another chance smile.gif

Well since we have not heard from the moderator and it is getting late. The target I chose is IC342 "The Hidden Galaxy"

 

From WIKI:

 

IC 342 (also known as Caldwell 5) is an intermediate spiral galaxy in the constellation Camelopardalis, located relatively close to the Milky Way. Despite its size and actual brightness, its location in dusty areas near the galactic equator makes it difficult to observe, leading to the nickname "The Hidden Galaxy",[4][1] though it can readily be detected even with binoculars.[5] If the galaxy were not obscured, it would be visible by naked eye. The dust makes it difficult to determine its precise distance; modern estimates range from about 7 Mly[6] to about 11 Mly.[2]

 

Should be good for most of us. Sorry Southern Hemisphere.

 

Hope I'm not breakin' rules.

 

Chris


Edited by Cfreerksen, 02 February 2020 - 07:00 PM.

 

#22 JacobB5

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Posted 08 February 2020 - 02:03 PM

Sorry for the late post.

 

Orion 8" f/4, 800mm

EQ6R-Pro

TeleVue Paracorr 1.15 field flattener

Canon T3i

SVBONY filter (just got my 2 inch filters)

 

16*300s Lights

28 Bias

18 Darks

22 Flats (T-shirt method)

 

Deep Sky Staker

Processing in GIMP: Curves, Levels, Cropped

 

Took the photos Jan 8th under class 5 skies (maybe 6, near a transition and relying on old data)

Attached Thumbnails

  • SH2188c.JPG

Edited by JacobB5, 08 February 2020 - 09:02 PM.

 


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