La Condamine Lunar Light Ray

Initial Reports

[text slightly edited to remove references of report on the Barrow light ray - R Robinson]

Date: Thu, 07 Oct 2004 15:32:20 -0700 Subject: Lunar Crater Light Ray Images

Hello I'm Robert Spellman from Griffith Observatory. I have imaged a Lunar Crater Light Ray event in La Condamine (double). I think the one in La Condamine may be a new discovery. If you have any information regarding the later observation I would like to hear from you. You may use my images on your site if you would like. Thank You, Robert Spellmam - Telescope Operator Griffith Observatory
Images and information can be found at:

http://www.geocities.com/xetor_2000/lacond.html


The Initial Predictions, Using Data in Original Reporting

Longitude and Latitude of the Griffith Observatory (Satellite): -118.28333W, +34.1464N, elev 137 meters
Times given for the photographs were from 2:14UT to 2:40UT on 09/24/04. For prediction purposes, the time is centered on 2:30UT

Site Longitude = +118.283
Site Latitude = +34.146
Site Elevation = +137.000

Reproducing Lighting For: 2004/9/24 at 02:30 U.T.

Desired Solar Altitude =  +2.100(Rising),  Azimuth = +91.441

Feature = LA CONDAMINE
Feature Longitude: = -28.200
Feature  Latitude: = +53.400

Average Co-longitude =  31.723

Moon's Altitude Restricted = N

In the Time column, D=Daylight, T=Twilight

                      ---- Moon's ----    -- Earth's --
                        Topocentric        Topocentric      -------- Sun's --------
   UT Date    Time     Alt°   Semi-Diam''  Long°   Lat°     Colong°     Lat°    Azim°

 2004/09/24  02:30T  +26.885    982.72    +2.008  +7.616    030.608   +0.827  +91.441


Crater Description:

No description available.


crater map crater image


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