NLC 2018-07-24/25

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: 2018-07-24/25

   UT     forms  bright   height   azimuth   comments
                  ness   top bot  left rght  e.g. weather
--------  -----  ------  --- ---  ---- ----  --------------------------------
21:15:01  0                                  clear, out of focus
21:30:01  0                                  clear
21:45:02  0                                  clear
22:00:03  0                                  clear
22:15:19  0                                  clear
22:30:32  0                                  clear
22:45:32  0                                  clear
23:00:47  0                                  clear
23:16:25  0                                  some cloud to h 15
23:31:24  X                                  some cloud to h 15
23:46:24  X                                  some cloud to h 15
00:01:24  X                                  some cloud to h 15
00:16:24  X                                  cloud to h 15, some higher
00:31:24  X                                  cloud to h 10, some higher
00:46:24  X                                  widespread cloud
01:01:24  X                                  widespread cloud
01:16:23  X                                  widespread cloud
01:31:24  X                                  widespread cloud
01:45:53  X                                  cloud to h 20
02:00:53  X                                  cloud to h 20, some higher
02:15:32  X                                  widespread cloud
02:30:19  X                                  widespread cloud
02:45:09  X                                  widespread cloud
03:00:05  X                                  widespread cloud
03:15:04  X                                  widespread cloud
03:30:05  X                                  widespread cloud

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: 2018/07/24-25
Start: 21:15
End: 23:15
Comments: clear

Images

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