Comet Garradd again...
oriel36 wrote:
On Aug 25, 11:25 pm, Marty wrote:
Gerald was saying
All it takes is a little compromise to
inherit both astronomical worlds Marty but in dumping everything into
right ascension,you inherit neither.
Well, half the time I use declination...
Marty
It was already included in Ra/Dec so your attempt at a smart answer is
somewhat disingenuous.
There is nothing offensive about matching the motion of Mars against
the field of stars known as the constellations with Kepler's
Quadragesimalis using modern sequential imaging for this is the realm
of astronomers from antiquity to the time of Copernicus,Kepler and
Galileo.It is only when they started to observe the motion of planets
and other celestial objects using stellar circumpolar motion and right
ascension/declination that the great observations and interpretation
of the motions of objects against the field of stars was lost.
The next time you try to sound homely when you go about your Ra/Dec
observing be sure to remember that none of the great astronomers
looked at the constellations that way as Ra/Dec is based on
timekeeping averages and accurate clocks only came into existence in
the late 17th century.
As usual you have got everything the wrong way round. Before accurate
clocks astrononomy was based on observing the sky based on the
constellations and the movement or otherwise of objects against this
background. RA and Dec are just a systematisation of this. It was the mean
24h day which depended on accurate clocks.
You have a real talent for 180 degree misinterpretation of facts.
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