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What magnitude?

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#1 river157

river157

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Posted 10 July 2020 - 01:25 AM

Took 15hours on CatsEye Nebula. I am wondering what the deepest star/galaxy magnitude is visible.  I’m guessing 22.5. Can anyone confirm or refute that?  I’m wondering how deep We can go - 23.r or 24?

https://www.astrobin.../full/adgtz6/0/



#2 Tapio

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Posted 10 July 2020 - 02:18 AM

Look here (searched 15' around your image coordinates)

https://simbad.u-str...uery&CoordList=

 

At least there's mag 21.9 (V) quasar

QSO J1759+6638

 

As a side note I found this interesting record:
https://www.flicamer...test/index.html


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