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All Sky Camera

PostPosted: Sat May 17, 2014 10:28 am
by Komet
I have made an All Sky Camera and it had its first serious run last night.

It has an ASI120MM mono camera at its heart and is mounted in a waterproof housing with a clear acrylic dome for it to look through.

It was very dewy this morning but the heating in it did a great job of keeping the dome clear of water.

Not a bad test .... now I know it works I have to tidy it all up.

This is a link to the time lapse video. (1738 x 10 second exposures)

it has lost a bit in compression (the original video is over 5GB in size).

There is at least one Iridium flare and a few satellites to watch out for. Lots of cloud though (as usual).

North is at the top, West is on the right.



http://youtu.be/-RmtgGSbdsk

Re: All Sky Camera

PostPosted: Sun May 18, 2014 10:41 am
by TheChairMan
Impressive. The Plough is very clearly seen and I saw a satellite and an Iridium Flare.

I am interested in its construction and use.

Re: All Sky Camera

PostPosted: Sun May 18, 2014 6:55 pm
by Komet
This is the device .....

Based heavily on one devised by Steve Walters in the US a few years ago.

The camera is as stated, an ASI 120MM mono CMOS camera and is being controlled via Firecapture although the inability of this software to use Dark frames from a library does limit its usefulness. Sharpcap is being tried as that can ......

The case is waterproof and features heating in the form of 4 resistors running from a 12v power supply to keep the dome a tad above the dew point.

Image

Videos are then changed to 11fps. They could be set at a faster rate for smoother clouds and aircraft but the smaller sats and flares would then become invisible - they are hard enough to see anyway.

Last nights effort - much clearer with loads of satellites in the raw data. There are also a few Iridium Flares, a couple of aircraft, a rising moon and some amazing clouds. I think compressing it for Youtube loses some. (Don't forget to change to resolution to 720P (HD))

Lets hope its clear on Friday!

http://youtu.be/Dmbzi7iYorM

Re: All Sky Camera

PostPosted: Thu May 22, 2014 12:33 pm
by meteorgw
Looks very promising. Hope to see lots of alien spacecraft! Could be really useful for fireball tracking and you should send them to the BAA if you get some good ones. Graham