Wednesday, August 3, 2011

Elenin: Latest Photos

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As Comet Elenin passed to within just 7 million kilometers of the STEREO (Behind) spacecraft, NASA rolled the spacecraft to take a look at it (Aug. 1, 2011) with its wide angle HI-2 instrument. Though the observation lasted only a little over an hour, the fuzzy looking comet can be seen moving across a small portion of the sky. STEREO will be taking these one-hour observations every day for almost the next week or more until it enters its nominal field of view, at which time we should enjoy continuous viewing of the comet. Over time, we expect the comet to be visible in the SOHO C3 coronagraph on September 23 for six days and possibly STEREO's COR2 coronagraph as well. The closest the comet will come to Earth is 0.23 AU (Astronomical Units), or approximately 34-million kilometers, so it poses no threat to us. We will attempt to keep this page updated with the latest observations.

We do expect the comet to appear to become significantly brighter over the next few days as it gets closer to the Sun-spacecraft line as a consequence of a process known as "foward-scattering". STEREO-B, which is far from Earth, happens to see this "back-lighting" effect as a consequence of its location relative to the comet, and is not indicative of a sudden change in the comet itself.

From Earth, presently the comet is a faint smudge of light in deep sky exposures. By late August comet Elenin could be visible to the naked eye as a dim "fuzzy star" with a tail.

Source and more: NASA

3 comments:

Anonymous said...

"So it poses no threat to us."I will remember NASA words in the next few days. CME arriving in August 5 or August 6, also perhilion 9/11/11, then three days later CME. I pray you are right.

in the vanguard said...

You say, "... so it poses no threat to us".

Surely you don't believe Hashem creates this earth to destroy it; And if so, in such a violent manner.

Devorah said...

I didn't say it poses no threat to us, those were NASA's words.

If it blocks the sun for long enough, we're all in trouble. And isn't that predicted? The sun will go dark.....

And certainly a lot of people will not survive to see Moshiach, as per the prophecies.

So we will just have to wait and see what happens.

Personally, I'm not worried about anything at all. I'm sure G-d knows what He's doing, and doesn't need our input :)