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Collinder 399 open cluster is a very remarkable asterism very easy to spot with small binoculars between Lyra and Aquila in the summer sky at northern hemisphere. Nevertheless here we have a telescope view of the rich star field around this well known cluster. You may appreciate another small star cluster called NGC 6802 with much fainter stars inside.

Frank Barrett is the author of this great shot. It is advisable to check out his webpage, "Celestial Wonders".

 
 
2015-11-13 12:04:23       
This is a super piece of writing David. I now know a lot more about you as you have put lots of detlias in for me and your other readers. Thank you for taking the time to write for 5SC
 
2015-10-18 15:36:19       
Frankly I do not know. It is easier to say what it was not insated of what it was. Two remove possibilities come to mind, the first of which I am sure is not true.First, a supernova explosion can be visible during the day. There are historical records of such and it is certainly physically possible. However, if that were the case, it would have been very widely seen (and likely continue to be seen for days, weeks or ever months). The fact that the Internet is not in meltdown mode over it is a clear indication that this is not the answer.Another remote but perhaps more likely solution is that it was some kind of research balloon high in the atmosphere. I have seen such balloons and they can look very much like Venus in the daytime. The real problem with this explanation is that they generally appear to move perceptively over time.due to high winds aloft. I suppose that an unusual combination of circumstances could cause such a balloon to appear nearly motionless for a time, but I have no way to check this.I should also add that I have not seen any other reports is a strong indication that this was an object in the atmosphere, visible over a relatively small area.We could jump to the conclusion that it was an extraterrestrial spacecraft and there are many, many folks out there who would do so but if anything, the balloon hypothesis is far, far more likely.
 
2012-10-07 16:44:26       
Good point. I hadn't tuhoght about it quite that way. :)
 
2011-08-19 03:40:55       
There's nothing like the relief of finding what you're lokonig for.
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