The Observatory Hipparchos
of Rhodes focuses on the observation of the moon, the planets and the sun.
Beneath the 2.8 meters diameter dome is installed a Celestron Schmidt-Cassegrain
C11" (280mm) focal length F2800 mm with a focal ratio f/10 telescope on a
equatorial mount EQ6. We offer visitors a memorable tour of the beautiful sky of
Rhodes-Greece. On hot summer evenings we make observation in the stargarden with
the following instruments. A refractor Skywatcher 120 ProSeries diameter 120mm
and 650mm focal length with a focal ratio f/7.5 mounted telescope on equatorial
mount and a large 40kg Dobson type focal length F1500 mm with a focal ratio f/5F
telescope. We also available a small telescope or binoculars for rent.
Observation of photosphere at 540nm ( green).
In a specially designed dark room for solar observations there are two solar telescopes with which the visitor can observe the solar disk. The solar refractor open- Fraunhofer airspace focal length 1500mm and 105mm diameter is equipped with a 2" prism Hershel filter Continuum at 540nm (green). With the help of long focal length of the instrument is extremely easy to observe formations of spot groups, shadows, the penumbra and the torches. Furthermore there is the option to view the solar image on projection screen (monitor) with a diameter of 100 centimeters . Solar telescopes have focused type crayford with steel runners and decimal division for precision focus.
With refractor ED80 Pro-Series diameter and 80mm focal
length F600mm with focal ratio f/7.5 in combination with hydrogen filter Ha
Front Etalon D = 60mm and BF10 in 656,28nm, we are able to see the chromospheres
(the solar atmosphere). Rapid changes in the chromosphere, (within a period of
even a few minutes), give us the opportunity to see extensive formations
explosive projections (jets of glowing hydrogen with dimensions exceeding
sometimes and 500,000 km !!!) and solar flares that are extremely violent
phenomenon that occurs in the solar chromosphere. With the help of the regulator
(tuner) hydrogen filter we can see the deeper layers of the atmosphere of the
sun. The impressive chromospheric phenomena are rapidly evolving and are
perceived observing within minutes. Sun spots, torches, projections and flares
can be observed almost daily (weather permitting) through the optics but also
through CCD camera and monitor. It is also possible from the visitor to take