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The 17" Planewave Astrograph is not the favorite choice for
lunar and planetary imaging due to its large obstruction.
Nevertheless,
with a good seeing we could reach some good results. Also the 130 mm Zeiss APQ
allows for high resolution mosaic images.
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The
12-frame mosaic was captured on November 12, 2014 (18:00 UT) with the 130mm
Zeiss APQ. The focal lenth was extended to approx. 2000 mm by an Astro Physics
barlow lens. Thw images were captured with a Celestron SkyRis 445M camera and a
Baader IR-Passfilter. 144 out of 1200 frames were stacked, processed in
AviStack und Photoshop CS 2.
The age of the Moon was 9.75 days, the
illumination 78%.
load image with 670
x 900 pixels
load
image with 2.220 x 2910 pixels (1:1) |
Following 10 detail images, captured with the 17" Planewave
telescope. Moon and image data as above.Click on the
images to load a large version. |
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New images of the moon, taken in 2015
After
finishing a new collimation of the secondary mirror we have taken some lucky
images with a Celestron SkyRis 445M webcam, showing the high permormance of the
Planewave optic. Click on the thumbnails of these mosaics
to load high resolution images. |
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« « « Mosaic from
Erathostenes to Darney
« « Mosaic from Darney to
Wurzelbauer
« Mosaic from
Heinzel to the south pole of the moon |
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The
right image was taken with a barlow lens (factor 1.5x) and shows a large field
of lunar domes near the craters Milichius and Hortensius. The image is a good
example for the nearly scattered light free optics of the PlaneWave system,
because the hight of these lunar domes are only about 250 meters. The diameter
oft the dome pits is about 1 to 2 kilometers.
We have labeled some of
the vulcanic features in this image, most of the domes show clearly summit
pits. Near the domes M 3 and M 5 are lava flows and a very small sinusoidal
rill visible (ancient lava flow). One more sinusoidal rill is Rima
Milichius.
The dome M 18 has a diameter of about 12 kilometers with a
height of only 90 meters. Nearby are lying two lunar cones (MC1), each about
1.5 kilometers in diameter with height about 60 meters. The lowest dome in the
field with a heigt of about only 35 meters ist M 14.
H1 - H6 are the Hortensius domes.
Click on the thumbnail image right to see a large
image. |
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All Images and all Content are © by Franz Hofmann
+ Wolfgang Paech |