18 November 2006

18 November 2006

Observing LocationVP
Observational Period1115 EST
Atmospheric Conditions
Cloud CoverBroken Clouds
Temperature50°F
WindCalm
HumidityModerate
Feels LikeRaw
It was not looking good when I went outside. There were all kinds of clouds up there, some of them convective. I could see the Sun shining brightly through the clouds, still to bright to look at it, but not bright enough to cast shadows. Since I was going near Virginia Park and had equipment I stopped to take a look. It was a short look but I invested more time than it deserved. I had trouble focusing the limb and once I got it couldn't even see the huge sunspot.

TransparencyPoor
SeeingV
InstrumentsBrunton 8x21 compact binocular w/Baader AstroSolar filter film - Charlie
Observing PartyCharlie Ridgway


Observing Location
Observational Period EST
Atmospheric Conditions
Cloud Cover
Temperature
Wind
Humidity
Feels Like

The weather got worse during the day and there was no point in even going out for the meteors.

Transparency
Seeing
Instruments
Observing PartyCharlie Ridgway

TargetLeonids Meteor Shower
Constellation
CategoryEclipse/Occultation/Transit
Time20061118.2245 EDT
Comments Not Seen

TimeMeteorsRadiant Alt.ZHR
2245-2300 EST -1.49
2300-2315 EST +1.07
2315-2330 EST +3.62
2330-2345 EST +6.22
2345-2400 EST +8.87
2400-0015 EST +10.86
0015-0030 EST +13.57
0030-0045 EST +16.32

What is ZHR ZHR=(F*C*K*N)/T, where:
F is a correction for any clouds or obstructions in the field,
C is a correction from the observer's limiting magnitude (LM) to LM=6.5,
K is a correction for the radiant's elevation,
N is the actual number of shower meteors seen, and
T is the time spent observing in hours.

Meteor storm =>1000 meteors/hr

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This is my personal record of my astronomical observations. It was written for my personal reference. The only reason it is in a blog is that a blog is a very convenient way to get the records formatted more or less uniformly and they will, hopefully, have greater longevity at Google where the servers are backed up than on my hard drive which never gets backed up. I occasionally include copyrighted material in my posts. I do this to make it convenient for me to access things I think I might want to refer to again. I think of this like making a photocopy of something I read that I put in a file where I can find it when I want it. As I understand copyright law, as explained in the DVD series Copyright Compliance by Chip Taylor Communications, this use is allowed under the Fair Use doctrine since I am not making any money on this blog, I don’t publicize the blog, and only occasionally post small excerpts of copyrighted works.


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