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Re: Jupiter and Venus tonight
From: Andrés Ruiz
Date: 2015 Jun 30, 11:57 +0200
From: Andrés Ruiz
Date: 2015 Jun 30, 11:57 +0200
Greg, what do you mean with "and sextant"?
regards,
--
using the camera as a sextant?, or with a camera and a sextant?
30/06/2015
03:44:49 UT1
Geocentric equatorial coordinates
Jupiter
GHA = 190.031122 º = 190º 1.9'
Dec = 15.178767 º = 15º 10.7'
Venus
GHA = 190.669620 º = 190º 40.2'
Dec = 15.173774 º = 15º 10.4'
Sextant Error by a Star-Star Distance
Input data:
Star 1: Dec = 15.178767 GHA = 190.031122
Star 2: Dec = 15.173774 GHA = 190.669620
Star-star distance - sextant: DSSs = 0.618333 = 0º 37.1'
Position of the observer:
B = 34.166667 = 34º 10.0'
L = -119.233333 = -119º 14.0'
hEye = 1.830000
Atmospheric parameters:
P = 1010.000000
T = 10.000000
Calculated altitudes:
Hc1 = 24.185245
Z1 = 272.410851
Hc2 = 23.654907
Z2 = 272.754199
Refraction:
R1 = 0.036011
R2 = 0.036919
Apparent altitudes:
Ha1 = 24.221256
Ha2 = 23.691826
Star-star distance: Calculated and Observed
DSSc = 0.616250 = 0º 37.0'
DSSo = 0.619158 = 0º 37.1'
Sextant error = Index Error + Instrumental Error:
Arc error = -0.002907º = -0.174433'
2015-06-30 11:41 GMT+02:00 Greg Rudzinski <NoReply_Rudzinski@fer3.com>:
Got it ! Measured distance by DSLR and sextant at 37.1' from 34° 10' N 119° 14' W at PDT 20:44:49 6/29/15 ( UT 03:44:49 6/30/15 ).
Attached File:
(Venus-Jupiter-6-29-15.jpg: Open and save)
regards,
--
File:
