From Newsgroup: rec.arts.sf.fandom
Gary McGath <
garym@mcgath.com> wrote:
On 8/4/26 1:47 PM, Keith F. Lynch wrote:
A SpaceX Falcon 9 rocket stage will crash into the moon at 0235 EDT
tonight. If the weather is clear, and you're awake at that hour, and
you have a good telescope, you may be able to see it. If not, don't
worry, plenty of others will be watching, and if there's anything to
see, it will soon show up on YouTube and elsehwere.
From the reports I've seen so far, the impact wasn't discernible even
with good instruments. They'll need to study the photos to find any sign
of the crash.
A Spanish observatory has posted a preliminary video of what is likely
the impact - the impact itself isn't visible but the ejecta from the
impact is [1].
Google suggests that The Instituto de Astrof|!sica de Andaluc|!a has
access to two facilities with a total of 5 largeish telescopes in the
0.9-3.5 meter optical size range. It could be taken with one of these
or something smaller, we just don't know.
There's enough zoom that it's clearly not handheld telescope but also
enough noise that I doubt they used one of the large ones for this.
I expect they'll post better videos and MUCH better photos later once
they've finished processing everything. And we may well see others
publish additional videos.
Note that impacts comparable to this happens roughly every 6 days! on
the moon, It's just that those are meteroids... [2]
As impacts goes it's bigger than the Long March 3 upper stage impact
(China, 2022) - this was initially misidentified as a Falcon 9 upper
stage when the moon impacting orbit was detected but was shown to be a
LM3 upper stage long before the impact.
But it's much smaller than say the Apollo 13 Saturn V upper stage
impact (1970). I suspect several other S-IVB also impacted the moon,
A13 is just the one with extensive seismograph data.
1.
https://x.com/jmmadiedo/status/2085344665562165293
2.
https://www.space.com/astronomy/moon/rocket-peppered-moon-a-brief-history-of-impacts-from-luna-2-to-spacexs-upper-stage
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