Possible Nocticulent clouds ?

[RobertM]

These appeared much later than the higher clouds so could they be nocticulent clouds ?  They certainly were moving fast and at extremely high altitude.



http://gallery.orpington-astronomy.org.uk/albums/userpics/10031/normal_nocticulent2_red.jpg

[RobertM]

Sorry I think these are just pretty clouds .... 

[Fay]

Bad sign, Robert, talking to yourself & answering your own questions............................I should know

[RobertM]

Fay, yes sorry you are right but I felt I had to correct myself before someone else did

Spent over 2 hours doing polar alignment last night and it nearly drove me mad !  At least I hope to have solved some field rotations problems so should be ready to image on the next clear night ... hopefully the fireworks galaxy ... unless anything else thwarts my attempts.

[Fay]

Looks like tonight is the night, Robert. I will be interested in your image of Firework galaxy.

[Rick]

Yep, those are just high normal clouds of the kind that'd appear dark if there were noctilucent clouds behind them. Noctilucent clouds are usually a blueish white.

[Mike]

No these are not noctilucent clouds. Noctilucent clouds are very obvious and look backlit. Plus, due to their extreme altitude tend to move quite slowly.