NGC 3718 and NGC 3729 in Ursa Major, version 1
(LRGB)
LThe galaxy NGC 3718, also called Arp 214, on the left, is approximately 52 million light years from Earth in the constellation Ursa Major. Its smaller companion on the right is NGC 3729. NGC 3718 exhibits a warped, S-shape and has a prominent dust lane overlying the central bulge. NGC 3718 is thought to represent an early stage in the evolution of polar-ring galaxies.[Its unique morphology may be a result of gravitational interaction with NGC 3729, another spiral galaxy located 150,000 light-years away. This is a joint project of James Foster and Michael Stecker using my Celestron 11-inch SCT telescope at f/7.5 with ZWO ASI6200MM-Pro monochrome camera. It is a cropped image taken in the LRGB mode with LUM=275min, Red=103min, Green=100min, & Blue =117. Subs were 200 sec for color RGB and LUM 160 sec.
Total intehration time is 595-minutes or 9.9-hours.
file: NGC3718-LRGB2-MAS1ccr1_GXPgrd6asm.jpg
Click here for full resolution photo

Photographic Data
telescope:
Michael Stecker's Celestron 11-inch (black tube) SCT with Starizona 0.72X reducer/flattener
FL= 2011 mm

mount:
iOptron CEM60

guiding:
Off-axis with ZWO ASI120MM mini camera

imaging camera:
ZWO ASI6200MM-Pro monochrome camera
(cropped image)

exposure:
LRGB mode with LUM=275min, Red=103min, Green=100min, & Blue =117. Subs were 200 sec for color RGB and
LUM 160 seconds.   Total intehration time is 595-minutes or 9.9-hours.

photographic site:
James Foster observatory at Frazier Park California
(Bortle 4 at 5,500 ft elevstion)
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NGC 3718 and NGC 3729 in Ursa Major, version 3
file: NGC3718-RGB3_GratKIRG3noCOLORadjONgalaxys.-v3d.jpg
Click here for full resolution photo




Cropped photo of version 3
file: NGC3718-RGB3_GratKIRG3noCOLORadjONgalaxys.-v3dcrx.jpg
Click here for full resolution photo

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Photoshop colorized image of NGC 3718 from monochtome luminesence
file: NGC3718-LUM275minCCDSharp3-colorize_GXPgrd6&dnd6-cc1crfN3718a.jpg
Click here for full resolution photo