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NLC 2017-08-15/16

BAA report

The report to the BAA Aurora Section gives an overview of the night, which times were cloudy, free of NLC, or with sightings of NLC.

Name of observer: Horst Meyerdierks
Location: Royal Observatory Edinburgh, 55.9N 3.2W
          unattended compact camera with limited field of view
          A ~325-35, h ~0-40; images every 15 min
Date: 2017-08-15/16

   UT     forms  bright   height   azimuth   comments
                  ness   top bot  left rght  e.g. weather
--------  -----  ------  --- ---  ---- ----  --------------------------------
20:15:04  0                                  clear
20:30:05  0                                  clear
20:45:06  0                                  clear
21:00:10  0                                  clear
21:15:33  0                                  clear
21:31:30  0                                  almost clear
21:47:33  0                                  clear
22:02:34  0                                  clear
22:17:33  0                                  clear
22:32:33  0                                  clear
22:47:33  0                                  clear
02:01:24  X                                  almost overcast
02:16:24  X                                  widespread cloud
02:32:34  X                                  widespread cloud
02:47:33  X                                  widespread cloud
03:01:24  X                                  almost overcast
03:15:53  X                                  almost overcast
03:30:19  X                                  almost overcast
03:45:08  X                                  almost overcast
04:00:05  X                                  widespread cloud
04:15:04  X                                  almost overcast

forms: I: veil
       II: bands
       III: waves
       IV: whirls
       NLC: other than or multiple of I-IV
       0: no NLC
       X: no decision possible (mist, cloud etc.)
brightness: 1: very weak
            2: clearly detected
            3: clearly visible
            4: very bright
            5: extremely bright

NLCnet report

The periods of absence of NLC are reported to the NLC Observers' Home Page:

Name: Horst Meyerdierks
Country: Scotland
Location: Edinburgh
Date: 2017/08/15-16
Start: 21:15
End: 22:45
Comments: Clear.

Images

No NLC has been observed, hence no images are made available here.