On Apr 12, 5:16 pm, Anthony Ayiomamitis
wrote:
Dear Friends,
One of the most celebrated quasars is Markarian 205, a fairly bright
quasar in Draco (mag 15.24), which has led to an interesting controversy
the past few years as to whether it is related to NGC 4319 in the
immediate vicinity or not. The dramatic difference between the redshifts
of these two "players" (z=0.07 vs z=0.006) has led to conflicting
interpretations of the redshift and whether it can be used as an
indicator of distance or not.
For an image based on 30 minutes total exposure, I kindly direct you tohttp://www.perseus.gr/Astro-DSO-QSO-Mrk205.htm.
Clear skies!
Anthony.
Dear friends
How does the analemma look like at the Equator where there is a
constant symmetry between daylight/darkness.
Tell me all about the axial tilting Earth and how a photographer can
pass himself off as an astronomer -
http://photomas.net/pages/appayiomamitis.htm
BTW, the analemma is a silly 17th century attempt to describe the
Earth's motions using a clock and especially the pseudo-dynamic of
variable axial tilt.When you see an 'analemma' you are looking at an
act of vandalism that wrecks havoc with the Equation of Time noon
correction which represents the same longitudinal position of the Sun
crossing a meridian.In short,there is no figure 8.