A Short Night of Aurora in Arizona

10:40 pm to 4:40 am in 10 minute increments

Uploaded 9/11/05

All images on this page are clickable to a larger size!

Costello Kp index for this night We started shooting at the time marked.
10:50 pm MST the Aurora peaked, Polaris is center
Kp index in 3h intervals that night

 A massive series of solar flares in the past week have pushed the Kp index well up into strong storm levels, and on this night the Kp reached 9 for about half an hour sparking deep ruby red glows to the north east. Here in Arizona Auroras are much rarer than most of the U.S. but with careful monitoring of the ACE spacecraft data and a bit of luck, you can easily photograph this phenomenon here. More details below:
Click on the images below for a larger size:

 Index print of the entire nights sequence. Each image is a 10 minute exposure, with the 16mm f/2.8 Zenitar fisheye set for f/3.5. All images are tracked and reset automatically to the same starting point at the end of the exposure. The first five images show the aurora, and the rest show clouds in the sky - not aurora. The last few frames show the morning twilight.
 Image 1 - 10:40pm

 Image 2 - 10:51 pm

(Best Image)
 Image 3 - 11:02 pm
 Image 4 - 11:13 pm
 Image 5 - 11:24 pm
Instrument: 16mm f/2.8 Zenitar Fisheye at f/3.5 Platform: Aurora Cam with Robotic Barndoor Film: Supra 400 Exposure: 10 mins Filters: NONE Location: Payson, Arizona Elevation: 5100 ft. Sky: Seeing 8/10, Transparency: partly cloudy Outside Temperature: 50F Processing: Photoshop CS HOME SCHMIDT GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS 


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