Celestial hemisphere:  Northern  ·  Constellation: Virgo (Vir)  ·  Contains:  M 58  ·  NGC 4564  ·  NGC 4567  ·  NGC 4568  ·  NGC 4579
Siamese Twins(NGC4567 and NGC4568) and NGC 4579, Wei Li
Siamese Twins(NGC4567 and NGC4568) and NGC 4579
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Siamese Twins(NGC4567 and NGC4568) and NGC 4579

Siamese Twins(NGC4567 and NGC4568) and NGC 4579, Wei Li
Siamese Twins(NGC4567 and NGC4568) and NGC 4579
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Siamese Twins(NGC4567 and NGC4568) and NGC 4579

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Description

NGC4567 and NGC4568 are a set of unbarred spiral galaxies about 60 million light-years away in the constellation Virgo. They were both discovered by William Herschel in 1784. They are part of the Virgo Cluster of galaxies.  These two galaxies are in the middle of colliding  and merging process, hence form a beautiful butterfly shape.  One day in future, the butterfly will fly a way and only one galaxy can be seen. For human being, that's a long and slow process. In universe, it completes in just a blink.  On the upper left corner, lies NGC 4579,  it is an intermediate barred spiral galaxy. This galaxy was discovered by Charles Messier on April 15, 1779. So it is also goes as M58.

The project lasted  two and half months  in our observatory. For F/7 lens, the galaxy requires lot of exposure to get noise down.  On May, an accident moved my camera 30 degree and  I had to drive there to move it back. Then a lot of replacement subs were taken and push the project even longer.

Subs:
L: 94x600s
R/G/B(bin2): 64x300s each

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