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May 2019 Imaging Challenge - NGC 4565 The Needle Galaxy

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#1 nmoushon

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Posted 02 May 2019 - 12:03 AM

The May 2019 Challenge is now open. The target is NGC 4565 The Needle Galaxy. To reduce the number of stickies, please submit your entry to this thread.

 

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 May 31, and I will try to announce the winner early in May. Note: If I am late announcing, gently nudge one of the moderators in a private note, it helps wink.gif

 

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.



#2 TOMDEY

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Posted 02 May 2019 - 02:12 AM

THIS IS NOT A SUBMISSION:

 

But nostalgic comparison/indication of what we had to put up with four decades ago! The scope was my trusty old Newtonian Cave Astrola 12.5-inch F/6. Kodak TP2415 film, H-hypered, single 120min exposure, ~hand guided~ That was about as much as we could squeeze out of Deep Sky Imagery, back in those days!

 

NGC4565 is my favorite galaxy! I'm looking forward to enjoying the entries... sure they will be magnificent!   Tom

Attached Thumbnails

  • 133 35-297_NGC4565 60.jpg

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#3 xiga

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Posted 02 May 2019 - 06:44 AM

I'll chip in with my effort. Shot from Crumlin, Northern Ireland, at the end of March.

 

28 * 360s (2.8 hrs) with a Nikon D5300 (at ISO 200), IDAS-D1, SW80ED, HEQ5-Pro.

Stack in APP, and processed in PS.

 

47552988291_8b84a117a2_b.jpgNGC 4565 v1 by Ciarán O Donnell, on Flickr

 

get.jpg?insecure


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#4 Stargazer3236

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Posted 02 May 2019 - 08:04 AM

My take on NGC 4565:

 

Nexstar 8SE OTA

iOptron ZEQ25

ASI294MC

SharpCap 3.2 Pro

Unguided

 

NGC4565, 2x2 bin, 350 gain, 2072 x 1410 resolution, 20x15s, 75% zoom

ngc4565 2x2bin 350gain 2072x1410res 20x15s 75p zoom.jpg

 

 


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#5 Gipht

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Posted 02 May 2019 - 09:49 AM

This picture of the Needle was taken 4/7/19 using a Canon t3i with  an Orion 10" f/3.9 on a CEM60 mount, guided.  384 x 57 seconds at ISO 800 processed in DSS,  Star Tools, and Gimp.

 

 

Attached Thumbnails

  • needlegc.jpg

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#6 925chicago

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Posted 02 May 2019 - 10:48 AM

Here's my quick grab of NGC 4565 from Mokena, IL (Bortle 6):

 

Shot with a Canon T3i, Celestron C8 (guided) with a Starizona 0.75x reducer/flattener. 8x150" ISO800 and 20x300" ISO800.

 

 

Attached Thumbnails

  • NGC 4565 Needle Galaxy.png

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#7 GoBlue

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Posted 02 May 2019 - 08:48 PM

Imaged in March.

 

ES ed 80mm triplet f/6 -480mm fl.

Full spectrum modified T3i with IDAS LPS D1.

AVX.

Orion starshoot guide scope package 50mm.

BYEOS, PHD2, DSS and PS.

 

36 x 180 lights, 11 flats and bias.

ISO 800.

Camera sensor temp +13c.

 

Peace.

Attached Thumbnails

  • ngc 4565.jpg

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#8 Juno18

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Posted 03 May 2019 - 09:23 PM

Hi Everyone,

 

I shot this image of NGC 4565 The Needle Galaxy last Thursday night. I posted it on CN several days later.

The sky conditions were as good as it gets in south Mississippi. Seeing was fair and transparency was good. Moon wasn’t due to rise until about 2 a.m.

Started imaging before 9 p.m.

 

100 light frames stacked at 90% in deep sky stacker (about 3 hours integration).
Lights at iso 800 for 120 seconds.
20 darks at iso 800 for 120 seconds at 56 degrees F.
30 bias from library

First try at dithering.

Explore Scientific ED102 apo on Celestron AVX Mount

Orion MMAG with PHD2
Nikon D3300 (unmodded) with DigicamControl for camera control.

Processed with DSS and Startools 

 

Very smooth session!

 

Thanks,

Jim

 

3A8CF32D-FEFE-404A-BE9F-9EAC6031FD7E.jpeg


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#9 cuivienor

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Posted 04 May 2019 - 08:33 AM

The Needle Galaxy is definitely in this field with Melotte 111 smile.gif

 

Location: Izu-Oshima island, Bortle 3-4

Camera: ASI 294MC Pro

Lens: Samyang 135mm f2 wide open

Mount: SW AZ-GTi in EQ Mode

Exposures: 60x60s

Capture software: N.I.N.A.

 

Attached Thumbnails

  • drizzle_integration_processed_gimped_small.jpg

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#10 Stargazer3236

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Posted 04 May 2019 - 02:24 PM

Here is another take on NGC 4565

 

Nexstar 8SE OTA

iOptron ZEQ25

ASI294MC camera

SharpCap3.22 Pro

Meade F/6.3 R/C

Attached Thumbnails

  • ngc 4565_2.jpg
  • ngc 4565.jpg

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#11 tomlindquist

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Posted 04 May 2019 - 07:17 PM

Here's my effort on the May NGC4565 Challenge...

 

Celestron AVX mount, 8" f/5 Reflector

filter: none

data:  120 subs, 30 sec. ea

shot 5/2/19 from SE Minnesota

process:  DSS and Nebulosity

 

Thanks for looking....

Attached Thumbnails

  • NGC 4565 120x30s33f CN2.JPG.jpg

Edited by tomlindquist, 04 May 2019 - 07:59 PM.

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#12 Kkiixx

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Posted 05 May 2019 - 03:34 AM

Imaging

Celestron 6" Newtonian

Meade DSI Pro

IR Filter

 

Guiding

Orion 50mm guide scope

Philips spc900nc

 

Mount

Celestron Omni CG-4

Celestron Dual Axis Motors

Arduino Nano / Stepper Shield as Controller

 

Software

DSS

Photoshop

PHD2

Envisage

 

The Dope

120 Second Exposures

20 Darks

26 Lights (52 minutes)

2x Drizzle

 

 

ngc4565DrizzleForizzleRun.png

 

fits data download here

 

 

Been planing this run once it was announced.  The night before I tried my luck at auto guiding with PHD2 and the z-filed Arduino controller I've been building.  I took a 5 minute exposure and came out with a nearly round star. I was pleased. 

 

Tonight I started around 6pm reading others' star hop to ngc 4565.  I found my own way once in the filed. I aimed a 20mm eyepiece at Melotte 111 and studied my sky charts.  I kept going back to my charts and starting over from a clearly recognizable part of Melotte 111.   I knew I should be right on it but could not see it.  I thought my scope and eyepiece could not resolve it.  Then my eye or the sky opened up, because it came to view.   I quickly locked up the mount and rushed to get the tracking going.

 

My telescope has a slide focus and I had to change out a section of the tube to make it shorter, get the DSI on it, and move the sled to the 13th hash marking to get it to near focus.  In Envisage I had short 1-4 exposures to get it framed. I used the Magic Eye focus to get it as close as I could. I thought about rotating the DSI to frame it different. I should have.   I ended up missing the tip of the galaxy on one side, and I really wanted to try to capture 4565A.  Next time!

 

Started up PHD2 - I had to delete and retrain the calibration for tracking.  This made me have to re-frame again.  I tried a few 30 second tests.  Looked ok.  Did a 2 minute shot and was not mad at it.   Set envisage to save all uncombined images and let it go at 2 minutes a pop. My goal was an hour.  I sat back, listened to music, drink coffee, and used a monocular to get a little visual in.  Started my darks the same way in the software as my lights.   After 21 I was too cold and wet to continue.  

 

Stacking went quick.  I did not load all 30 images and 90% in DSS dropped the count to 26.  Took it into photoshop and had to de-interlace for some reason.  A few quick hits of the levels and curves for processing.  Tony's Astro Actions > Noise Filter.  Cropped it square to frame it center.  Resized untill it saved at 500k to upload here.

 

I've been dealing with this thing all day, i'm now tired and will play with data another time.  But i'm happy with what I have now.


Edited by Kkiixx, 06 May 2019 - 02:47 AM.

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#13 Bretw01

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Posted 05 May 2019 - 09:01 AM

Taken May 3rd, 2019. Less than an hour into imaging had to do a meridian flip, so I had to deal with the burst from the sensor on both sides of the image. Thin cloud cover ended my session at under two hours.

 

ASI 183MC Pro

53x120

Gain 50 temp -10

Stellarvue SVQ100

Sky-Watcher EQ-6R Pro

SSAG/80mm guide scope

PHD2

SGP

PixInsight - calibrating, stacking, processing

PSCC 2019 - color tweaking

 

drizzle_integration_LRGB2.jpg

 

Bret


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#14 AKHalea

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Posted 05 May 2019 - 09:12 AM

Last night was a clear night, so I took the opportunity to image the Needle galaxy, NGC 4565, from my backyard. Here is my rendition of this cute little gem: 

 

5-4 Needle 108Min csc STCrJ.jpg

 

Gear used: 

No laptop while capturing & no guiding or dithering. Used the old standby intervalometer for capture.

OTA : Stellarvue 105 triplet with an SV Field flattener - no guiding, no filter

Imaging camera : H-Alpha modded Nikon D5300,

Mount : iOptron iEQ 30Pro,

 

Capture details : Date of capture - May 4, 2019. 

Place of capture - my backyard in S. Texas.

ISO 200, f7, 108 minutes of total exposure (71x90sec),

Used all calibration frames. 

Post processed in APP (Astro Pixel Processor) and Star Tools. 

 

Clear skies ..... Anil


Edited by AKHalea, 05 May 2019 - 09:13 AM.

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#15 Francopoli

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Posted 06 May 2019 - 01:29 AM

https://astrob.in/404415/0/

 

62x60s subs.  This was a frustrating night.  I had my first dew encounter of the year and was not ready for it.  Then, I had guiding issues that made me toss out 14 of the 60 second subs.  I think I have a bad gear tooth on my ZEQ25, but I don't have enough knowledge yet to verify that.  I'll have to get the logs together and post them for help later.  I am also using DSS, and I think that I am going to move up to Pixinsight here at the end of the month.  Also, I am terrible at focusing and will be throwing money at the problem here, also at the end of the month. 

 

My M13 stuff I got this same evening are going to be amazing; seeing got better, guiding got better and I banged on the focusing for about 15 minuted to get something not terrible.  I'll be spending some time on that later this week with the incoming clouds and doom.

 

I'm happy with the telescope, the camera, the mount and the guiding set up.  I'm now in the "learn to make it all work together" phase.


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#16 darkstar3d

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Posted 06 May 2019 - 02:05 AM

had to do a meridian flip, so I had to deal with the burst from the sensor on both sides of the image.

Did you take darks? They should match the image frame, not the orientation.


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#17 Bretw01

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Posted 06 May 2019 - 07:35 AM

Did you take darks? They should match the image frame, not the orientation.


Sent from my iPhone using Tapatalk

Yes I took darks and flats. I have been having trouble calibrating the starburst pattern from the sensor out of my images. The darks match the frame as you have stated, but when it doesn't calibrate out of the frame completely it leaves the pattern on both sides of the stacked image (because of the flip).

 

Integrated image with STF applied. The starburst is worse on the lefthand side, more frames taken after the flip than before the flip.

 

Screen Shot 2019-05-06 at 7.40.14 AM.png


Edited by Bretw01, 06 May 2019 - 07:46 AM.

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#18 fmeschia

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Posted 06 May 2019 - 03:54 PM

Imaged on March 30th.

 

Astro-Tech AT130EDT

Astro-Tech 0.8x FF/FR

iOptron iEQ45 mount

Stellarvue 9x50 guide scope

Lacerta MGEN autoguider

Nikon D5500Ha

15x480s light subs, 25 darks, 10 flats, 300 bias

Processed in PixInsight

 

Francesco

 

40545893073_8a44a23dd3_b_d.jpg


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#19 Ballyhoo

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Posted 06 May 2019 - 04:53 PM

Imaged on March 30th.

 

Astro-Tech AT130EDT

Astro-Tech 0.8x FF/FR

iOptron iEQ45 mount

Stellarvue 9x50 guide scope

Lacerta MGEN autoguider

Nikon D5500Ha

15x480s light subs, 25 darks, 10 flats, 300 bias

Processed in PixInsight

 

Francesco

 

40545893073_8a44a23dd3_b_d.jpg

absolutely gorgeous


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#20 Francopoli

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Posted 06 May 2019 - 06:36 PM

Here is another take on NGC 4565

 

Nexstar 8SE OTA

iOptron ZEQ25

ASI294MC camera

SharpCap3.22 Pro

Meade F/6.3 R/C

That is a good image!  How well does the ZEQ25 handle an OTA that heavy? I've been toying with the idea of using the same setup over here to get more light gathering for my ASI071.



#21 darkstar3d

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Posted 06 May 2019 - 09:54 PM

Yes I took darks and flats. I have been having trouble calibrating the starburst pattern from the sensor out of my images. The darks match the frame as you have stated, but when it doesn't calibrate out of the frame completely it leaves the pattern on both sides of the stacked image (because of the flip).

Integrated image with STF applied. The starburst is worse on the lefthand side, more frames taken after the flip than before the flip.

attachicon.gif Screen Shot 2019-05-06 at 7.40.14 AM.png

I’m not familiar with that sensor. On my QHY163m/asi1600, we have to take dark flats as well. Maybe that would help you. I hope you get it solved. Too many frustrating events in this hobby.


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#22 rexrobichaux

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Posted 07 May 2019 - 10:20 AM

Last night was beautiful and clear here which is a rarity, so I decided to give this one a go from my Bortle 7.5 suburban back yard. I was hoping to get about 3 hours of data but due to my laptop BSOD'thing me two times during the sequence, and what I am assuming is mirror flexure as the RC-8 tracks near zenith, I only ended up with 12 keeper subs for a total of 72 min of time :/. Oh well... lessons learned. Also, might be time to research OAG that will work with a DSLR... oh it never ends.

 

Anyways, here's my contribution:

 

RC-8 scope, Nikon D5300 modded, EQ6-R mount. 

 

Captured in APT when my laptop wasn't crashing on me, Guided with PHD2, Stacked in DSS, processed in Startools, and refined in Lightroom CC.

 

12 (ultimate) subs of 360", 30 darks, 40 flats, 125 bias frames: 

 

 

med_gallery_300588_10263_937123.jpg


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#23 bpaczkowski

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Posted 07 May 2019 - 10:29 AM

The Needle Galaxy (NGC 4565) in the constellation Coma Berenices. A great example of a galaxy viewed edge-on. This is a color composite made from a total of 10 hours of LRGB data taken this past weekend from the @la.astronomical.society dark sky site. Stacked in Nebulosity and processed in PixInsight (AGOptical 10”iDK, 10Micron GM2000 HPS II mount, ZWO ASI 1600mm-cool at -25C)

 

Data
R 30x5 min, 2x2, unguided
G 30x5 min, 2x2, unguided
B 30x5 min, 2x2, unguided
L 30x5min, 1x1, unguided

Darks
100x5 min

Flats
40 flats per filter

Bias
None

Equipment
AGOptical 10”iDK
10Micron GM2000 HPS II mount
ZWO ASI 1600mm-cool (@-25C)

Software
SGP
Stacked in Nebulosity
Processing in PixInsight

PixInsight Processes:
Each color Filter:
DynamicCrop
BDE
MLT
LinearFit

Luminance:
DynamicCrop
BDE
MLT
PSF
Deconvolution
MLT
Starmask using AdvStarMask script
Use GAME script to build galaxy gradient mask

RGB:
ChannelCombination
Background Neutralization
Color Calibration

LRGB:
LRGB process: add L to RGB
HT
TGVDenoise
MLT sharpening
UnsharpMask
ColorMask strip to extract colors
Convolution on ColorMasks
Curves using ColorMask masks to enhance star colors
HDRMT
MT
Curves
Clonestamp

Attached Thumbnails

  • ngc4565_LRGB_v2.jpg

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#24 johnsoda

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Posted 07 May 2019 - 04:39 PM

Acquisition details and better quality image available by clicking on the small image:

 

get.jpg?insecure

 

 

Attached Thumbnails

  • Needle_drizzle_small.png

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#25 AKHalea

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Posted 07 May 2019 - 08:34 PM

A quick question to Francesco & Rex (posts #18 and #22).

 

You guys seem to be in a similar LP zone as me at Bortle 7-8 (borderline between Red & White). You both seem to have a very similar DSLR like mine, a modded D5300. I use my SV triplet at f7 and use 200 ISO as standard and no filter for galaxies. With my 90 sec subs, I am at 25% away from left on the histogram. So, with a similar LP and assuming ~200 ISO as the minimum recommended ISO, how do you guys manage to get much longer exposures without clipping brighter stars? Are your scopes a lot slower, or is there something I am missing when imaging?

 

BTW - both of you have shared wonderful renditions. Thanks in advance for any help ...... Anil


Edited by AKHalea, 07 May 2019 - 08:41 PM.

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