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I would like to make three comments on the C list.
1. Please provide both NGC and C numbers when you refer to an object.
The older generation only know the NGC numbers, some of the younger ones only know the C numbers.
2. Unfortunately the Caldwell list omits some very good objects IMO.
3. S&T tried to sell the C cat. as another Messier list but some of the C objects are too faint for Messier to see.
It was a good idea but could have been better IMO.
The book however is excellent.
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