Aurora Observation

 

 

Location: Chapel of Garioch (57º 17’ N, 002º 31’ W)

 

Month/Year: April 2010                     Night: 11/12

 

 

Time (UTC)

Description

2125

RB2c h=5˚ ↑ 9˚

2137-2142

RB3a h=6˚ ↑ 25˚, purple rays captured on camera

2145-2150

RB2-3a h=5˚ ↑ 15˚, occasional rays

2215-2230

RB2a h=4˚ ↑ 12˚, occasional faint rays

2230-2238

Base slowly rises to 7˚

2238-2300

HA2c h=7˚ ↑ 12˚

0005-0015

RB2-3c h=6˚ ↑ 15˚

0050-0115

RB3a h=8˚ ↑ 15˚ occasionally 20˚ , rays / bands move slowly east                                                                                       

0215-0225

RB3-4a h=10˚ ↑ 20˚ occasionally 30˚ at peak around 0218, camera picked up blue ray tops (in sunlight?), and hint of red/pink at the base.

0225-0235

p3RB2-3a h=8˚ ↑ 15˚ occasionally 20, pulses of light surging up from the horizon and re-illuminating structures

End Of Observations

 

 

All images below were taken with a Canon 40d, with a sigma 24mm lens, and have been brightened by around 40%.

 

 

 

Taken at 2141 30s exposure, f2.8,  ISO 400.

 

 

 

Taken at 0005, 20s exposure, f2.8,  ISO 800.

 

 

 

 

Taken at 0055, 15s exposure, f2.8,  ISO 640.

 

 

 

 

Taken at 0218, 20s exposure, f2.8, ISO 400.

 

Note the blue ray tips, at an angle of around 30º, around the same as the suns elevation below the horizon.

 

 

Taken at 0224, 20s exposure, f2.8, ISO 400.

 

 

 

Taken at 0229, 20s exposure, f2.8, ISO 400.