This image exhibits severe coma at the edges. The result of my forgetting to remove a 48mm spacer between the DSLR and the x.85 field flattener!! I will be trying this one again, but I think I got the subject framed well.
M35 / NGC 2168 w/NGC 2158
- rjbokleman
- Posts: 517
- Joined: Fri Dec 19, 2014 11:09 pm
M35 / NGC 2168 w/NGC 2158
Last edited by rjbokleman on Sat Jan 09, 2016 3:22 pm, edited 1 time in total.
Ron B.
T5i/700D, ASI1600MM-C, ASI120MM, ASI174MM, XAGYL 7x36mm FW
Astronomik Deep-Sky(RGB), CLS, Ha, OIII, SII
SV60EDS 60mm f/5.5 APO
AT65EDQ 65mm f/6.5 ED Quadruplet
SW ProED 100mm f/9.0 Doublet APO
C8 EdgeHD, AT130EDT
AVX, iEQ45 Pro
http://www.astrobin.com/users/rjbokleman/
T5i/700D, ASI1600MM-C, ASI120MM, ASI174MM, XAGYL 7x36mm FW
Astronomik Deep-Sky(RGB), CLS, Ha, OIII, SII
SV60EDS 60mm f/5.5 APO
AT65EDQ 65mm f/6.5 ED Quadruplet
SW ProED 100mm f/9.0 Doublet APO
C8 EdgeHD, AT130EDT
AVX, iEQ45 Pro
http://www.astrobin.com/users/rjbokleman/
Re: M35 / NGC 2168 w/NGC 2158
Awesome!
I just looked on Wikipedia and learned that M35 (NGC 2168) (the large open cluster) is about 2800 ly away, and the compact cluster, NGC 2158, is about 9000 ly further away. Apparently 2158 is an open cluster even though it looks like a globular cluster.
I just looked on Wikipedia and learned that M35 (NGC 2168) (the large open cluster) is about 2800 ly away, and the compact cluster, NGC 2158, is about 9000 ly further away. Apparently 2158 is an open cluster even though it looks like a globular cluster.
Andy
Re: M35 / NGC 2168 w/NGC 2158
Very nice Ron! Your image is inspiring me to get out there again and have a go at seeing both of those visually in the same eyepiece FOV. I think I can, I think I can...
"The purpose of life is the investigation of the Sun, the Moon, and the heavens." - Anaxagoras
- rjbokleman
- Posts: 517
- Joined: Fri Dec 19, 2014 11:09 pm
Re: M35 / NGC 2168 w/NGC 2158
Ok, so this is more like it. Redone from scratch, but the first attempt was still good learning and hopefully someone else will benefit from my mistakes!
Ron B.
T5i/700D, ASI1600MM-C, ASI120MM, ASI174MM, XAGYL 7x36mm FW
Astronomik Deep-Sky(RGB), CLS, Ha, OIII, SII
SV60EDS 60mm f/5.5 APO
AT65EDQ 65mm f/6.5 ED Quadruplet
SW ProED 100mm f/9.0 Doublet APO
C8 EdgeHD, AT130EDT
AVX, iEQ45 Pro
http://www.astrobin.com/users/rjbokleman/
T5i/700D, ASI1600MM-C, ASI120MM, ASI174MM, XAGYL 7x36mm FW
Astronomik Deep-Sky(RGB), CLS, Ha, OIII, SII
SV60EDS 60mm f/5.5 APO
AT65EDQ 65mm f/6.5 ED Quadruplet
SW ProED 100mm f/9.0 Doublet APO
C8 EdgeHD, AT130EDT
AVX, iEQ45 Pro
http://www.astrobin.com/users/rjbokleman/
Re: M35 / NGC 2168 w/NGC 2158
Very nice Ron. The original image was very good but you are right the latest image is supurb.
DonB
DonB
"When I was 18, my father was the dumbest man I ever knew.
When I was 21, I could not believe how much he had learned in 3 years." --- Mark Twain
Orion 120mm F/5 Refractor
Celestron 8
Explore Scientific 80 Triplet
Explore Scientific 102 Triplet
Orion 8" Astrograph
When I was 21, I could not believe how much he had learned in 3 years." --- Mark Twain
Orion 120mm F/5 Refractor
Celestron 8
Explore Scientific 80 Triplet
Explore Scientific 102 Triplet
Orion 8" Astrograph
- rjbokleman
- Posts: 517
- Joined: Fri Dec 19, 2014 11:09 pm
Re: M35 / NGC 2168 w/NGC 2158
Thank you. Glad you enjoyed.
Amazing how little separation was required to introduce coma into the original. Nice flat field in the second one and I was able to add .4 hours of frames.
Shooting these frames with the tempurature down to 16 degrees didn't hurt either. Kept the T5i sensor nice and chilly.
Amazing how little separation was required to introduce coma into the original. Nice flat field in the second one and I was able to add .4 hours of frames.
Shooting these frames with the tempurature down to 16 degrees didn't hurt either. Kept the T5i sensor nice and chilly.
Ron B.
T5i/700D, ASI1600MM-C, ASI120MM, ASI174MM, XAGYL 7x36mm FW
Astronomik Deep-Sky(RGB), CLS, Ha, OIII, SII
SV60EDS 60mm f/5.5 APO
AT65EDQ 65mm f/6.5 ED Quadruplet
SW ProED 100mm f/9.0 Doublet APO
C8 EdgeHD, AT130EDT
AVX, iEQ45 Pro
http://www.astrobin.com/users/rjbokleman/
T5i/700D, ASI1600MM-C, ASI120MM, ASI174MM, XAGYL 7x36mm FW
Astronomik Deep-Sky(RGB), CLS, Ha, OIII, SII
SV60EDS 60mm f/5.5 APO
AT65EDQ 65mm f/6.5 ED Quadruplet
SW ProED 100mm f/9.0 Doublet APO
C8 EdgeHD, AT130EDT
AVX, iEQ45 Pro
http://www.astrobin.com/users/rjbokleman/