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Thursday, March 29, 2012

A QHY8Pro on a Newton with ASA reducer on a Losmandy G11 guided by a Lodestar camera










 This new astrophotographic system consists of a:
 This telescope belongs to a friend.

Monday, March 26, 2012

Venus, Jupiter and the Moon

 Image 1: Venus, Jupiter and the Moon after the sunset
 Image 2: Venus, Jupiter and the Moon (zoomed)


Both photos are taken on March 25th, 2012

Tuesday, March 20, 2012

M53 & NGC5053 in Coma Berenices

Do you own a small telescope? If you do, take it out in the garden and point it towards the Coma Berenices constellation. The brightest star you will detect in this constellation, Alpha Com, will show you the way to a magnificent object duo. Two globular clusters are twinkling next to each other, in a 2° field of view. The globular cluster M53 (left) is 5000 lights years further away from the Earth than its fainter neighbor NGC5053 (right). Both star clusters are moving apart from each other.


Image 1: a stack of 5 x 15min exposures at f/5.4 and 704mm focal length.

The photo above is also available for download at: http://dark.astrodigital.net

Wednesday, March 07, 2012

TS APO65Q - A faithful friend

This scope is like a faithful friend. It keeps what it promises. The tiny TSAPO65Q 420mm, f/6.5 flat field quadruplet is ideal for traveling, suitable for guiding, and exceptional for deep sky work. Due to its user friendly focal ratio, it is a joy to use.

Photo 1: The TS APO65Q telescope

Telescopes like this one are called "Geheimtipp" in Germany. This high quality quadruplet is capable to carry heavy camera trains and to maintain flatness till the edges of an APS sensor, commonly used in DSLR cameras. This portable scope is also suitable for visual observations of the Moon or the Sun*. More photos of it are available here. It belongs to a friend of mine.
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*Warning: a Baader astrosolar filter is mandatory in that case. 

Friday, March 02, 2012

The Sun as might be observed from Mars ;-)

Photo 1: Single exposure of the Sun

Photo 2: Mars some days after its opposition in 2012

Two days before the opposition of Mars, the Sun floats in space showing few spots towards the Earth and of course the Mars.
Photo 3: Seven stacked exposures

A hypothetical observer on Mars would see exactly the same side of the Sun like we do on Earth! That means he would see our neighbor star exactly as shown above, only a bit smaller.
Photo 4: Seven stacked exposures with false colors

The Sun has a diameter of 109 times that of Earth. [Source:wikipedia]

All photos are also available for download here.