#magnetometer

[opendirectories]

[therealuniverse]

K-index We've had thousands of 'likes' for photos of aurorae, but how do photographers know when to lug all their gear into the wilderness and while away the hours waiting for “that shot”. One of the best assets in the aurora watcher's toolkit is the K-index.

The K-index is an indication of the level of disturbances in the Earth's magnetic field and ranges from 0-9. 1 on the K-index is relatively calm, whereas 5 or more indicates a geomagnetic storm (and therefore aurorae are more likely). Introduced by Julius Bartels in 1938, the K-index ('K' comes from the German “Kennziffer” meaning “characteristic number”) reflects the maximum fluctuations observed by a magnetometer during a three-hour interval. Canadian K-Index Map: https://www.spaceweather.gc.ca/forecast-prevision/short-court/sfst-2-en.php Australian K-Index Map: http://www.ips.gov.au/Geophysical/1/3/1 -CJ Image: Australian K-index map (updated every 20 minutes, see link above): Australian Government's Bureau of Meteorology, Radio and Space Weather Services Further Reading: http://www.swpc.noaa.gov/info/Kindex.html

[olinasinmapefeethal-blog]

[flowersandspacestuff]

As usual, I want a magnetometer so much

[susanlabnic]

Vibrating Magnetometer System

Labnic Vibrating Magnetometer System operates at RT with a measuring range of 35×10⁻⁹ to 10³ emu, a magnetic field of 0.2–8T, and frequencies of 55–85 Hz. Features a vibration amplitude of 2–8 mm, a 360° rotating vibration head, and an adjustable pole gap for precise measurements.

[allaboutparanormal]

[jaganb-blog]

Luna II, First man-made object landed on Moon

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