Just thinking back to the 2017 August 21st eclipse in Wyoming and could not find the air temperature data we took… so here it is, maybe again:
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Archive for April, 2020
4 results.
two great startrails
Apr17
allsky1pi night of april 15/16
allsky1pi night of april 16/7
The allsky1pi camera system project is awesome. The last two nights have been relatively clear and the images it is generating are very nice!
These startrails are from the last two nights.
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two nice meteors
Apr12
Two nice meteors in the last two days:
North up, south down, west right, east left.
Saturday 2020 April 11, 04:13:07 UT = Saturday 2020 April 11, 00:13:07 EDT
This was a 4 second event: Video: https://starlightcascade.ca/allsky2/video/ev_20200411_041307A_10A.mp4
The new Allsky1Pi camera system also caught it:
And then another the same day but next night
North up, south down, west right, east left.
Sunday 2020 April 12 01:15:46 UT = Saturday 2020 April 11 21:15:46 EDT
This was a 9 second event: Video: https://starlightcascade.ca/allsky2/video/ev_20200412_011546A_10A.mp4
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We are superduper happy with the allsky1pi camera project. It has better resolution and colour images over the older allsky1 system (2006-2018) running a very old SBIG ST237A camera system. It also required a desktop computer with parallel port for the camera controller box. Keeping a desktop running outdoors in the winter did have its challenges (numerous versions of blankets, wood boxes, multiple hard drive failures, etc). and not a small amount of electricity to run (80-100 watts 24h/365d)
(that’s approx 2.4kwh/day or 876 kwh/year at our average power price of $0.15 came out to about $130/year! (not counting the dome heating or the camera controller power). We run on time-of-use billing which gave us low rates for 12hr/day mon-fri and 24hr/day on weekends and holidays.
The new project runs on an ittybitty raspberry pi and comes in under 10w for the computer and camera combined. And that comes in at only $13/year all else being equal.
It has now been running for 31 days without intervention as well!
Love it!
pi@allsky1pi:~ $ uptime
08:54:02 up 31 days, 13:58, 3 users, load average: 0.01, 0.04, 0.05
pi@allsky1pi:~ $ free
total used free shared buff/cache available
Mem: 948304 117396 307052 11040 523856 756232
Swap: 102396 84288 18108
pi@allsky1pi:~ $ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 7.0G 4.3G 2.4G 65% /
/dev/mmcblk0p1 253M 52M 201M 21% /boot
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