Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  NGC 4145  ·  NGC 4151  ·  NGC 4156
Eons of Silence ( NGC4151 and NGC 4145 ), Reza Hakimi
Eons of Silence ( NGC4151 and NGC 4145 )
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Eons of Silence ( NGC4151 and NGC 4145 )

Eons of Silence ( NGC4151 and NGC 4145 ), Reza Hakimi
Eons of Silence ( NGC4151 and NGC 4145 )
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Eons of Silence ( NGC4151 and NGC 4145 )

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Description

NGC 4151 (known as Sauron's Eye) is an intermediate spiral seyfert galaxy with weak inner ring structure located 62 million light-years and NGC 4145 is a barred spiral galaxy located in the Ursa Major galaxy cluster, 68 million light years from the Earth both in the constellation Canes Venatici. [wikipedia]

I have captured RGB data for this image in May 2019 with a DSLR. I managed to expose it for 5.5 hours with a Nikon D7100 at ISO 800. In Jan 2020 I revisited this area with my ZWO 1600 and gathered 7.5 hours of luminance data.

Detailed exposure info:

Lum: 150*3 min (at Gain 139)

RGB: 110*3min (at ISO 800)

Total exposure: 13 hours

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Eons of Silence ( NGC4151 and NGC 4145 ), Reza Hakimi

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