droneando vol. vii (radio cerebro mágico dos)


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a collection of drones from the radio magic brain. enjoy. peace - love - empathy. h.



released February 9, 2017

music by hatri. mastering at villa itatí ms studio.

cover .
Part of the shadow of Saturn's moon Mimas appears as if it has been woven through the planet's rings in this unusual series of images from Cassini. Together the sequence of frames comprise an unusual demonstration of the varying particle density across the rings.

In these images, which were combined to create both a mosaic and a movie, the Cassini spacecraft looks toward the unilluminated side of the rings from about 61 degrees above the ringplane. Mimas' shadow, shown in multiple locations simultaneously in the mosaic, lies across the inner B ring (top) and outer C ring (bottom). Mimas is not visible. The Maxwell Gap within the C ring is below center.

The densest parts of the B and C rings, seen as bright stripes across Mimas' shadow, do not let much sunlight pass through to the spacecraft's camera. Consequently, one might expect these dense areas to appear dark because they are on the dark side of the rings. But these areas, particularly the inner B ring in the upper left of the image, appear brightly lit, even where Mimas' shadow crosses them. It is likely that illumination from Saturn itself and the subsequent reflection to the cameras keeps them relatively bright. As a result, the moon's shadow appears cut off and diminished in these areas.

Nineteen images, each taken about 2 minutes 24 seconds apart, were combined to create this mosaic and movie. Contiguous images were stitched together to create a mosaic showing the whole swath of the rings across which the moon's shadow passed. One image is missing from the sequence, creating a gap in the movie.

The novel illumination geometry created as the Saturnian system approaches equinox allows moons orbiting in or near the plane of Saturn's equatorial rings to cast shadows onto the rings. These scenes are possible only during the few months before and after Saturn's equinox which occurs only once in about 15 Earth years. To see a similar image showing a different moon's shadow on the unlit side of the rings, see PIA11498. To see movie and mosaic of Mimas' shadow moving across the sunlit side of the rings, see PIA11658.

The original NASA image has been modified by rotating and cropping.
Date 30 April 2009
Source ciclops.org/view/5623/Weaving_a_Shadow
NASA/JPL/Space Science Institute
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HATRI Quilmes, Argentina

|H.--. |
| :/\: |
| (__) |
| '--'H|
`- -----'
|A.--. |
| (\/) |
| :\/: |
| '--'A|
|T.--. |
| :/\: |
| (__) |
| '--'T|
|R.--. |
| :(): |
| ()() |
| '--'R|
|I.--. |
| (\/) |
| :\/: |
| '--'I|
christian hainich. buenos aires. argentina.
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