On Aug 27, 2:18*pm, Anthony Ayiomamitis wrote:
Dear group,
One of the most recognized pulsating variable stars is RR Lyrae. Discovered in 1901, it is used as a "standard candle" for studies involving globular clusters amongst others.
It fluctuates by almost a full magnitude every 13.60 hours. However, being a summertime object, it is impossible to pursue a light curve during one session. With some strategic planning, we can do something over two all-nighters:
http://www.perseus.gr/Astro-Photomet...R-20120824.htm
Anthony.
Let me see Anthony and in your own words -
"Note: As noted elsewhere, more men have walked on the moon than have
successfully photographed the analemma (see S&T, Dec/2003: 73)."
http://www.perseus.gr/Astro-Solar-Analemma.htm
Despite the fact that your Greek ancestors defined a planet or rather
distinguished then from the Sun and the moon by the 'wandering
motions' and you still insist in explaining what would normally be a
harmless exercise using the 24 hour clock in terms of planetary
dynamics tells me a lot about people today who have no respect for
their national or astronomical heritage and you have the distinction
of acting like a traitor for little more than a pittance.
"A planet (from Ancient Greek αστήρ πλανήτης (astēr planētēs), meaning
"wandering star")" Greek definition
" Moreover, we see the other five planets also retrograde at times,
and stationary at either end [of the regression]. And whereas the sun
always advances along its
own direct path, they wander in various ways, straying sometimes to
the south and sometimes to the north; that is why they are called
"planets" [wanderers]. "
Copernicus
You equate the achievement of Neil Armstrong with taking a picture at
12 noon every day within the confines of the calendar system !!.I have
sometimes wondered - does it not bother you that you will eventually
be mocked as a traitor even though you have a chance to use the silly
'analemma' images to undo a lot of damage ?.They have already nailed
the origins of the analemma to a mapmaker and have treated them in the
same way as a 'pIltdown man' skull -worthless and meaningless and yet
you still continue to present the idea that they can be explained -
" Due to the earth's tilt about its axis (23.45°) and its elliptical
orbit about the sun, the location of the sun is not constant from day
to day when observed at the same time on each day over the course of a
full year. Furthermore, this loop will be inclined at different angles
depending on one's geographical latitude. "
http://www.perseus.gr/Astro-Solar-Analemma.htm
That is gruesome,nothing more or less.