Andromedas Parachute (Gravitation lense) Observations Germerswang am 12th November 2018 |
Photographies Newton 800mm 8", f4,5, 10sec, ASA 3200, Canon 5DMIII Newton 1900mm 12,7", f.6, 9sec, ASA 3200, Canon 5DMIII Newton 1900mm (Ausschnitt x20) 12,7"; f.6; Exp 9sec ; ASA 3200, Canon 5DMIII
What is Andromeda's Parachute?
It is a quad lensed quasar* (mag * 14/18) in the
constellation Andromeda. The cause of the quadruple
projection is a gravitational lens which stands between
us and the light source and accordingly redirects or
divides the light beam of the object by the strength of
the gravitational force of the lens. The cause of this
phenomenon is a far-off mass-rich object in space, a
galaxy or a black hole. The princip of space-time
bending may take place. This object was first discovered
in June 2017 by the PanSTARRS telescope / 1.8m in
Hawaii. This object is similar in principle to the
Einstein Cross but is unique in its appearance. The
object is about 3 seconds of arc and is damn tiny, comes
to scale of a 1 Euro coin (ca. 2cm) seen from a range of
1.5 km. Depending on the seeing or quality of your
optics this "parachute" can be separated into three
adjacent quasars or light points. The fourth projection
should be below the arc (sketch map). So this is truly
an invitation to test your quality of optics. From the
photographic point of view, somedays it will maybe
succeed to work out the complete resolution of three /
four projections. I'll stay tuned!
Quasar* rough explained, active core of a galaxy which appear like a bright star. *mag: light magnitude= > up to mag +3-4 stars are visible nearby cities with the naked eye, in very dark areas the seeing limit can reach up to mag +6-7. The more higher numerical value is given, the more weaker are the objects. E.g. - 4,7 mag, Venus glittering; - 1,0 Sirius, brightest star; +3,5 M31 Andromeda, pale shiny oval. |
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