Thursday, March 31, 2016

blue image ready (Halifax)

The blue filter image for NGC 2022 was made available for download. This completes the work started back on March 12 when I captured the luminance, red, and green. North is up; east is left.

blue filter photograph of planetary nebula NGC 2022

120 seconds. Target altitude approx. 27°, 2.2 airmasses. Conditions: 4.7°C, humidity 52%, north-ish winds at 4.8 kph, gusting between 27 and 17 km/h, 1008.4hPa. SQM was 18.0 Mag/Square Arc Sec. The Clear Sky Chart showed cloud: 7, 30% covered; transparency: 1, poor; seeing: 2/5 poor. The Moon was below the horizon.

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