Aurora pp 151-168 | Cite as

Noctilucent Clouds and other Phenomena

  • Neil Bone
Part of the PatrickMoore’s Practical Astronomy Series book series (PATRICKMOORE)


At those latitudes most favored for observations of aurorae, the summer night-time sky never becomes completely dark. In northern Scotland (59.N) at midsummer (21 June), for example, the Sun never sinks more than about 9. below the northern horizon. Under such circumstances, twilight persists all night, and only the brighter naked eye stars are readily visible: astronomical observations are difficult, and this might well be regarded as “goff-season” for aurorae, which will normally be swamped by the bright sky. There is, however, one high atmosphere phenomenon of which observations can usefully be made during the twilit summer nights at higher latitudes: noctilucent clouds.


Cent Cloud Auroral Activity Noctilucent Cloud Sunspot Minimum Rocket Launch 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer 2007

Authors and Affiliations

  • Neil Bone
    • 1
  1. 1.‘The Harepath’ Mile End Lane Apulduram ChichesterWest SussexUK

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