NLC 2010-05-14/15
From chi and h
Contents |
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: Stichill Eastfield, 55.7N 2.4W
unattended dSLR with limited field of view A ~310-20, h ~0-40
images every 15 min
Date: 2010-05-14/15
UT forms bright height azimuth comments
ness top bot left rght e.g. weather
----- ----- ------ --- --- ---- ---- --------------------------------
20:45 X patchy cloud
21:00 X only partly clear
21:15 X mostly cloud
21:30 X mostly cloud
21:45 X mostly cloud
22:00 X mostly cloud
22:15 0 cloud at top and on right
22:30 0 cloud at bottom right
22:45 0 few cloud patches
23:00 0 cloud at bottom right
23:15 0 little cloud bottom right
23:30 0 clear
23:45 0 clear
00:00 0 clear
00:15 0 clear
00:30 0 clear
00:45 0 clear
01:00 0 clear
01:15 0 clear
01:30 0 clear
01:45 0 clear
02:00 0 clear
02:15 0 clear
02:30 0 clear
02:45 0 clear
03:00 0 clear
03:15 0 clear
03:30 0 clear
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 main periods of absence of NLC are reported to the NLC Observers' Home Page:
Name: Horst Meyerdierks Country: Scotland Location: Stichill Date: 2010/05/14-15 Start: 22:15 End: 03:30 Comments:
Images
No NLC has been observed, hence no images are made available here. However, here are a daytime shot of the view and a nighttime shot of the constellations. For some images there may also be an unsharp-masked version for better contrast.
UT exp A hSun h15 h85 stretch image (masked) ----- ------ ----- ----- ----- ----- ----- ------------------------- 18:25 0.000 284.6 12.8 0.0 0.0 0-255 q27458.jpg 22:45 30.000 340.3 -13.6 -4.2 6.7 0-255 q27486.jpg exp: Exposure time in seconds (400 ISO, f/3.5). A: Azimuth of the Sun (degrees). hSun: Altitude of the Sun (degrees, negative below horizon). h15: Max. altitude of sunlight at 15 km height (degrees). h85: Max. altitude of sunlight at 85 km height (degrees). stretch: Contrast stretch (0-255 means no stretch).
