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Old 15-03-2018, 10:34 AM
Tropo-Bob (Bob)
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NGC 3242 - Ghost of Jupiter

Also known as Caldwell 59. (Viewed on 13th March, 2018)

This is a very colourful, planetary nebula that contrasts strongly with the surrounding inky, black sky. It reminded me of the colours of the Great Barrier Reef, as it was like the aqua blue of a lagoon within the reef.

With my Vixen 115mm EDS (60x), it appeared circular and IMO is the second brightest planetary, as judged by viewing comfort, only bettered by the Dumbbell nebular.

I read later, that it has a central star which is visible to a 4" scope, but I failed to notice it. I also failed to notice this when I had previously viewed it over many years with a 12" Dob. Something I will try to view on another evening.

In Steven O'Meara book, The Caldwell Objects, he mentions that the central star is more easily seen by people that have had cataract lens replacements because they more easily see UV light.

In the first attached website, there is a photo of NGC 3132 that has previously appeared in the ISS Deep Sky images.

http://www.iceinspace.com.au/forum/s....php?p=1095866

https://en.wikipedia.org/wiki/NGC_3242

Last edited by Tropo-Bob; 15-03-2018 at 04:46 PM.
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Old 15-03-2018, 12:26 PM
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bigjoe (Joe)
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Quote:
Originally Posted by Tropo-Bob View Post
Also known as Caldwell 59. (Viewed on 13th March, 2018)

This is a very colourful, planetary nebula that contrasts strongly with the surrounding inky, black sky. It reminded me of the colours of the Great Barrier Reef, as it was like the aqua blue of a lagoon within the reef.

With my Vixen 115mm EDS (60x), it appeared circular and IMO is the second brightest planetary, as judged by viewing comfort, only bettered by the Dumbbell nebular.

I read later, that it has a central star which is visible to a 4" scope, but I failed to notice it. I also failed to notice this when I had previously viewed it over many years with a 12" Dob. Something I will try to view on another evening.

In Steven O'Meara book, The Caldwell Objects, he mentions that the central star is more easily seen by people that have had cataract lens replacements because they more easily see UV light.

In the first attached website, there is a photo of NGC 3132 that has previously appeared in the ISS Deep Sky images.

http://www.iceinspace.com.au/forum/s....php?p=1095866

https://en.wikipedia.org/wiki/NGC_3242
This ones the best in my view Bob.esp for your 115mm Vixen....eerie aqua greenish..CBS EYE in Large scopes.
bigjoe.
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