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...further images: Noctilucent Clouds 2017-06-20./21.

Beobachtungsort: Rostock ~54.2°N / 12.1°E
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Location: Rostock ~54.2°N / 12.1°E
More information and back to Noctilucent Clouds

Canon EOS 600D + Sony Alpha 7S (f = 70 mm) + Canon EOS 1100Da (OWB Clip Filter, Magic Lantern + other settings)
 


very faint start of NLC here between Cirrus
same image with marks:

 


 


 


 


00:29/00:30 UT, 4,5/46 mm, t 2"/1,6"/5", ISO 800, AZI ~005° - 055°
[panorama view 4334 x 1429 pixel]


 


00:48 UT, 3,5/30 mm, t 4", ISO 400, AZI at the right edge ~070°


 


01:27 UT, 2,0/35 mm, t 1/20", ISO 400, AZI in middle ~005°
NLC fading away but still visible at end of observation time
here: upper middle from left to right + from lower left to middle
same image with a bit contrast enhancement:

 


NLC (with rare obvious drift from W to E):
f = 4,0 / 70 mm
Sony Alpha 7S
Movie (107 MB) on vimeo.com:
2076x1386 Pixel, 12 fps, f = 70 mm



 

Time (UT)
NLC Forms
Max. Elevation
Brightness
Comments
20:44-01:25*
21:18-01:27**

II,III,P,V

13° (evening)
17° (morning)

3 (probable 4 during automatic camera observation)

AZI ~ at least 320° - > 070°
a lot of of Cu hum causing bad visibility in the evening + a bit faint Ci; 
*automatic camera observations ~ 300° - 020°;
**duration with NLC detection, in the morning visual, too;
>>>obvious drift from W to E<<<


Photographs and text are copyright ©2018 Olaf SQUARRA

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