View Full Version here: : Quick and dirty Jewel Box
traveller
27-06-2017, 08:53 PM
A quick and dirty Jewel Box, taking advantage of a few hours of cloud few nights last weekend in Melbourne.
20x180 sec subs using FLT 110 and Canon 1100D.
May have over-exposed the brighter stars :whistle:
Cheers
Bo
Geoff45
27-06-2017, 10:09 PM
That's really good Bo. I have found the jewel box to be quite diificult to image. Looks easy but it's not. Well done.
Geoff
cometcatcher
27-06-2017, 10:50 PM
Nah, looks good! :thumbsup:
Placidus
28-06-2017, 04:43 AM
We agree with Geoff. Is good.
We reckon it's impossible to over-expose the brighter stars. Sure you end up with a white centre, but the glaring halo always retains the right colour, and with a cluster like this, you really want to retain the relationship between the hugely bright mega-stars and the tiny little cluster members and general milky way. You've done that.
:thumbsup::thumbsup:
(About the only reason we can think of that you might want to not over-expose the brightest stars is if there were two very close together, and you wanted to show that there were two. An example is the set of four (actually at least five) in the centre of the Trifid. The only way to show those as four stars (one of which is elongated) and also show the faintest nebulosity is to wreck the relationship between the stars and the nebulosity. Most people are willing to do that, because the stars aren't the main attraction. Even with brilliant double stars, diffraction spikes will often show them as a double. There's an example of that in the Corona Australis gas and dust complex. Here, in the Jewel Box, the stars both bright and faint are the main attraction, and you want to preserve the relationship between them. You've done a great job.)
gregbradley
28-06-2017, 07:29 AM
A lovely rendition of the Jewel Box. You captured how it looks in an eyepiece and retained the colours. That's hard to do. Most Jewel Box images fall flat.
Greg.
multiweb
28-06-2017, 08:24 AM
Very nice shot Bo. Nailed the colors. Just right IMHO. :thumbsup:
traveller
28-06-2017, 09:59 AM
Schucks, thank you all.
M&T thank you for the tip re overexposure and splitting stars, much appreciated.
Bo
It may be quick, but in ain't dirty. Lovely image :thumbsup:'
Best
JA
Slawomir
28-06-2017, 03:07 PM
This in one of the very first DSOs I observed with a telescope. Nice work Bo :thumbsup:
Atmos
28-06-2017, 05:21 PM
Looks quite a bit like what my 4" showed near two weeks ago... Less fainter field stars though, viewing into Melbourne's light dome isn't the best for spotting fainter stars :P
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