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PostPosted: Fri Aug 15, 2008 11:13 pm 
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Hi everyone,

Another Parker/Carboni starry scene for your enjoyment. This time it's Kemble's Cascade and the little open cluster NGC1502 in that well-known constellation Camelopardalis.

Image

This was taken with the little Takahashi Sky 90 and the SXVF-M25C one-shot colour camera. Total exposure time just under 4 hours.

Greg

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Nexstar 11 GPS, 2 x Sky 90, M25C, MaximDL, Photshop CS3, Noel Carboni's Photoshop actions, 7 foot Pulsar fibreglass dome, Canon 40D, 100mm macro lens, 28-200mm zoom lens, 17-55mm f#2.8 zoom lens, 100-400mm zoom lens, 1.4x converter, 2x converter.
http://www.newforestobservatory.com/
http://www.flickr.com/photos/12801949@N02/


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PostPosted: Sat Aug 16, 2008 5:41 pm 
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A different presentation worked out by Noel:

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This is to take into account the weird mosaic where I had two overlapping frames at funny angles.

Greg

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Nexstar 11 GPS, 2 x Sky 90, M25C, MaximDL, Photshop CS3, Noel Carboni's Photoshop actions, 7 foot Pulsar fibreglass dome, Canon 40D, 100mm macro lens, 28-200mm zoom lens, 17-55mm f#2.8 zoom lens, 100-400mm zoom lens, 1.4x converter, 2x converter.
http://www.newforestobservatory.com/
http://www.flickr.com/photos/12801949@N02/


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PostPosted: Sat Aug 16, 2008 7:37 pm 
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Hi Greg,

Another cracker. 8)

As so often with your posts I was motivated to find out a little more. The content won't be news to you, of course, but Wikipedia has a nice little write up about Kemble's Cascade here. So, it's just a chance alignment of unrelated stars. Very beautiful, nonetheless.

Coincidentally, it appears, according to this Space Daily article, that the SEGUE survey has thrown up a number of new streams of related stars where gravitational tides induced by the Milky Way have apparently shredded a number of dwarf galaxies that got too close.

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Olympus OM-D E-M1 + M.Zuiko Digital ED 12-40mm f/2.8, Lumix 7-14mm f/4, Leica DG Summilux 15mm f/1.7 ASPH, M.Zuiko Digital 45mm 1:1.8, M.Zuiko Digital ED 75mm 1:1.8.
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OM-D E-M5, H-PS14042E, Gitzo GT1541T, Arca-Swiss Z1 DP ball-head.
Astrophotography: TEC 140 'scope, FLI ML16803 camera, ASA DDM60 Pro mount.


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PostPosted: Sun Aug 17, 2008 2:55 pm 
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Hi Bob,

What really gets me with this one is that it wasn't reported until 1980!!! Can you believe that??? I want to report an asterism that doesn't seem to be listed anywhere - just like Kemble's cascade. This one is called Greg's Charm Bracelet.

Get a pair of low power binoculars (10 x 50 are fine) and take a look at the Double Cluster in Perseus. There is a chain of stars like a bracelet and the Double Cluster hangs off the bottom of the bracelet like a charm. The bracelet is not apparent on planetarium software, or on star charts. Like Kemble's Cascade - it seems to need the Brain/Eye system doing some image processing for it to stand out. No idea why this should be so.

Greg

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Nexstar 11 GPS, 2 x Sky 90, M25C, MaximDL, Photshop CS3, Noel Carboni's Photoshop actions, 7 foot Pulsar fibreglass dome, Canon 40D, 100mm macro lens, 28-200mm zoom lens, 17-55mm f#2.8 zoom lens, 100-400mm zoom lens, 1.4x converter, 2x converter.
http://www.newforestobservatory.com/
http://www.flickr.com/photos/12801949@N02/


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