M35 and NGC 2158 - Two clusters in Gemini (Andre Vilhena)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: 5 Gem · M 35 · NGC 2158 · NGC 2168 · The star 5Gem

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M35 and NGC 2158 - Two clusters in Gemini

Link: https://flic.kr/p/2n3GaDf

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M35 and NGC 2158 - Two clusters in Gemini

Link: https://flic.kr/p/2n3GaDf

In this image, two star clusters in the Gemini constellation can be seen and while they seem close, one is four times farther from Earth than the other.

The largest one is M35, an open cluster with about 500 stars but only 120 brighter than magnitude 13. It is located at about 2,800 light years from us and the large quantity of hot blue stars indicates this is a young cluster, whose age is estimated at 110 million years. Interestingly, this cluster's apparent size is similar to Full Moon’s.
The smaller one, NGC 2158, seen at 2 o’clock in this photo, is four times farther than M35. It is ten times older, more compact and contains more stars. It is not related to M35 but its orange stars provide a beautiful contrast with M35 blue stars.
Both of these objects can be seen through a small telescope and M35, in good dark skies, can be seen at naked eye.

I think processing stars is one the hardest things in astrophotography, especially because there are a lot of tradeoffs and it's one the the things that for me make or break a photo.

Hope you enjoy.

FriendlyCosmos
Trevinca Skies

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Status	Advanced success
Started	...
Astrometry.net job	5501347
PixInsight job	OMNBL3RXMG44JASMB6I3EG5EIT4IQ1D0
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h08m36s.40
RA (top/left)	06h08m40s.23
RA (top/right)	06h05m09s.25
RA (bottom/right)	06h08m32s.00
RA (bottom/left)	06h12m03s.81

Dec (center)	+24°14′42″.5
Dec (top/left)	+25°04′20″.10
Dec (top/right)	+23°59′32″.10
Dec (bottom/right)	+23°25′11″.2
Dec (bottom/left)	+24°29′39″.6

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M35 and NGC 2158 - Two clusters in Gemini

M35 and NGC 2158 - Two clusters in Gemini

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M35 and NGC 2158 - Two clusters in Gemini

M35 and NGC 2158 - Two clusters in Gemini

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