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Message Subject Dr. Astro nailed it. No 15 Km. monster Asteroid dubbed Gog to hit Earth on August 29, 2027, Spanish writer proven full of Sh*t.
Poster Handle Dr. Deplorable Astromut
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As mentioned in my example, Cerro Tololo was one of the first to spot that asteroid at magnitude 21. Upon further analysis though this doesn't even qualify as an asteroid or comet. It would be a full sized planet. And in any case the story apparently lists the magnitude at 19.5. That's even less generous than I was being. It would then require the object to be larger than the Earth itself. I've scheduled an observation tonight at those coordinates using a powerful telescope that can easily see down to that magnitude, just to put this to bed. It's going to cost me about $80 of observing time.
 Quoting: Dr. Deplorable Astromut


Wow Dr.Astromut, I'm humbled, you don't really have to go to that lenght but I really appreciate your commitment to test a claim like that. I am forever grateful and I'm sureat least some of us GLPers will be paying all the attention to your results.
 Quoting: Red Hot Chilean Pepe


Here's the result, a comparison of the image I took last night using this telescope:
[link to support.itelescope.net]
...and a Palomar Sky Survey plate taken 25 years ago of the same coordinates.
[link to drive.google.com (secure)]
I detect a handful of high proper motion stars, but I don't see anything that jumps out to me as a planet in our solar system barreling towards at a velocity far above solar escape velocity. The Palomar plate was recorded in July 1993, and of course the image last night was in November, so there should be quite noticeable parallax for any solar system object, even if it's making a bee-line straight towards an impact with earth in 2027. Even at ~500 AU farther away where it would have been at that velocity 25 years ago, it would still be quite noticeable in the image, as in hundreds of pixels at the 0.81 arcsecond per pixel image scale of this telescope.
 Quoting: Dr. Deplorable Astromut


Thanks for sharing your results here Dr. Astro!!! I see that nothing is really out of place there, albeit I think one has to have special software to detect the things that are different between both images, which at plain eye seem only to vary on the glare of the brightest stars.

But certainly no life threatening asteroids appear on this image AFAI can tell.
 Quoting: Red Hot Chilean Pepe


I analyzed them by overlaying them and subtracting one from the other. High proper motion stars then stand out as separated white and black spots while stationary stars just look black.
 
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