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NLC 2017-05-16/17

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: 2017-05-16/17

   UT     forms  bright   height   azimuth   comments
                  ness   top bot  left rght  e.g. weather
--------  -----  ------  --- ---  ---- ----  --------------------------------
21:00:01  0
21:15:01  0
21:30:02  0
21:45:02  0
22:00:19  0
22:15:31  0
22:30:32  X                                  cloud h 10 - 25
22:45:47  X                                  widespread cloud
23:00:47  X                                  widespread cloud
23:15:46  X                                  widespread cloud
23:31:24  X                                  cloud to h 25
23:46:24  X                                  widespread cloud
00:01:25  X                                  widespread cloud
00:16:24  X                                  cloud to h 15
00:31:23  X                                  cloud to h 10
00:46:24  X                                  cloud to h 10
01:00:46  X                                  cloud to h 10
01:15:47  X                                  cloud to h 10
01:30:47  0                                  cloud to h 5
01:45:31  0                                  cloud to h 5
02:00:32  0                                  cloud to h 5
02:15:18  0                                  cloud to h 5
02:30:02  0
02:45:02  0
03:00:01  0
03:15:01  0

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: 2017/05/16-17
Start: 21:00
End: 22:15
Comments: clear

Name: Horst Meyerdierks
Country: Scotland
Location: Edinburgh
Date: 2017/05/16-17
Start: 01:30
End: 03:15
Comments: some cloud

Images

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