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Old 19-11-2010, 08:45 PM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,823
Moon, Antares, M4 & NGC 6144 in Scorpius from 2008 - repro

In the last 2½ years, my Photoshop skills have improved so I had another go at processing this composite of the Moon, Antares, M4 and NGC6144.

At around 1:50am, on April 24th in 2008, there was a conjunction of our Moon, the brilliant red star Antares and globular clusters M4 & NGC 6144 in Scorpius. Due to the huge difference in the brightness range of these celestial objects, it was impossible to capture their splendour in a single photo.

However, I managed to grab some images of the stellar background (sans Moon), from the previous week and combine these in Photoshop with a photo of the Moon taken just after 1:49am on the 24th April.

Background star field taken with a Vixen ED102S F9 refractor with Canon 40D DSLR camera at prime focus.

Moon image taken with a Takahashi Mewlon 180 at F9.6 using x0.8 Flattener/Reducer with Canon 40D DSLR camera.

So, if your eyes had a sufficiently large dynamic range, this is what you might have observed, if you had been outdoors in the wee hours of 24th April 2008.

Cheers

Dennis
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