n-a-s-a: PanSTARRS over Parkes - Image Credit & Copyright:...

PanSTARRS over Parkes - Image Credit & Copyright: John Sarkissian (CSIRO Parkes Observatory)

Mais informação em: http://apod.nasa.gov/apod/ap130309.html

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Cometa PanSTARRS - 2

ScienceCasts: Sunset Comet
http://www.youtube.com/watch?v=f1cYfPrHoJw

Descrição:
Comet Pan-STARRS has survived its encounter with the sun and is now emerging from twilight in the sunset skies of the northern hemisphere. A NASA spacecraft monitoring the comet has beamed back pictures of a wild and ragged tail.

Publicado em 14/03/2013
Visit http://science.nasa.gov/ for breaking science news.

STEREO (Solar Terrestrial Relações Observatory) é uma missão de observação do Sol.

Duas sondas quase idênticas foram lançados em órbitas ao redor do sol para permitir imagens estereoscópicas.

STEREO (Solar TErrestrial RElations Observatory)

Mais informação em:
http://en.wikipedia.org/wiki/STEREO

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Comet C/2011 L4 (PanSTARRS) as seen by NASA STEREO
http://www.youtube.com/watch?v=5MCZeC_FfWw

Descrição:

This is Comet PanSTARRS as seen by the NASA/STEREO-B satellite, which is on the opposite side of the Sun, looking back at the near-Sun region.
There are a few things to note about this movie. First, there are two planets visible: Mercury on the left; and on the right… Earth! (Earth is easy to see if you’re on the other side of the Sun!). The Sun itself is off to the left, outside of the field of view of this camera. The bright vertical lines you see are saturation spikes, caused by objects that are brighter than the telescope detector can handle. I’ve used a special kind of image processing here that really highlights the features in the tail of the comet, and the solar outflow. Unfortunately it does have the side-effect that objects in motion are half-black and half-white.
Finally… that blast from the Sun right at the end of the movie is a coronal mass ejection (CME). While it appears in this movie as if it’s hitting the comet, it actually misses it by some distance in reality (remember, we’re viewing a huge region of space here!).

Publicado em 14/03/2013

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