Frequent moon impacts

http://spaceweather.com/ reports:

####
IMPACT MOON: In only 30 hours of observing, astronomers at the Marshall
Space Flight Center have recently photographed seven explosions of light
on the Moon. Each one, they believe, was caused by a meteoroid falling
from the sky and hitting the ground.

The flashes seen by the Marshall group ranged in brightness from 7th to
9th magnitude, which means they were invisible to the human eye, but
easy targets for backyard telescopes. Amateur astronomers are thus
invited to join the hunt
####

The observation table is:
http://spaceweather.com/swpod2006/23...ooke_table.jpg

There's also the NASA news link:

A Meteoroid Hits the Moon
http://science.nasa.gov/headlines/y2...arsporadic.htm


I hope those Lunans have got some good crash hats for their heads!


Keep searchin',
Martin


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"Martin 53N 1W" wrote in message


http://spaceweather.com/ reports:

####
IMPACT MOON: In only 30 hours of observing, astronomers at the Marshall
Space Flight Center have recently photographed seven explosions of light
on the Moon. Each one, they believe, was caused by a meteoroid falling
from the sky and hitting the ground.

The flashes seen by the Marshall group ranged in brightness from 7th to
9th magnitude, which means they were invisible to the human eye, but
easy targets for backyard telescopes. Amateur astronomers are thus
invited to join the hunt
####

The observation table is:
http://spaceweather.com/swpod2006/23...ooke_table.jpg

There's also the NASA news link:

A Meteoroid Hits the Moon
http://science.nasa.gov/headlines/y2...arsporadic.htm

I hope those Lunans have got some good crash hats for their heads!
I totally agree about moon folks having substantial body protection, and
perhaps a few spare roles of ductape.

In other words, these 7 recorded hits within 30 hours were those of
fairly sizable items involved with impacting our side of the moon at
roughly one every 4.3 hours. For example the following recorded impact
of having caused a similar 7th magnitude class of observed affect.

http://science.nasa.gov/headlines/y2...arsporadic.htm
"Taking into account the duration of the flash and its brightness (7th
magnitude), Cooke was able to estimate the energy of impact, the
dimensions of the crater, and the size and speed of the meteoroid. "It
was a space rock about 10 inches (25 cm) wide traveling 85,000 mph (38
km/s)," he says."

This represents that of a much greater population of smaller and/or of
less velocity impacts are most likely offering considerably more of
those events as having gone unrecorded by the sorts of terrestrial
monitoring methods in use. Of course, others and I've been touting the
physical impact and related safety issues from the very get go, of what
our NASA/Apollo teams have 100+% discounted as never once having
observed from orbit nor from the surface, as ever once having recorded
or otherwise having via naked eye noticed any hint of there having been
such impacts, thus apparently like all of the stealth gamma and
hard-X-ray dosage that also somehow never existed, it seems neither were
there any of those pesky physical impacts to worry about.

What about all of those under 10 cm or even those of the cm3 mm3 class
of similar velocity if not faster arriving items that might head-on or
retrograge exceed 90 km/s, or that of the submicron worth of solar flak
which at times can reach velocities of nearly 0.08%'c'(2,400 km/s), or
of just having to fend off the local dust and substantial debris that's
available within the orbital path that's going to unavoidably hit that
lunar deck at something greater than 2.5 km/s?

Doesn't most all of that seem a bit physically lethal to anything less
than the most rad-hard of physically robust robotics?

Isn't our moon essentially a naked 3D sitting duck of a anticathode
pincushion, along with sufficient gravity that's only certain to attract
upon whatever might otherwise never have encountered our moon?
-
Brad Guth


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Martin 53N 1W wrote:
http://spaceweather.com/ reports:

####
IMPACT MOON: In only 30 hours of observing, astronomers at the Marshall
Space Flight Center have recently photographed seven explosions of light
on the Moon. Each one, they believe, was caused by a meteoroid falling
from the sky and hitting the ground.

The flashes seen by the Marshall group ranged in brightness from 7th to
9th magnitude, which means they were invisible to the human eye, but
easy targets for backyard telescopes. Amateur astronomers are thus
invited to join the hunt
####

The observation table is:
http://spaceweather.com/swpod2006/23...ooke_table.jpg

There's also the NASA news link:

A Meteoroid Hits the Moon
http://science.nasa.gov/headlines/y2...arsporadic.htm


I hope those Lunans have got some good crash hats for their heads!

7 per 30 hours per 2,000,000 sq miles. 1 per square mile per 11,600,000 hrs?

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Matt Giwer wrote:
Martin 53N 1W wrote:
[...]
The observation table is:
http://spaceweather.com/swpod2006/23...ooke_table.jpg

There's also the NASA news link:

A Meteoroid Hits the Moon
http://science.nasa.gov/headlines/y2...arsporadic.htm

I hope those Lunans have got some good crash hats for their heads!


7 per 30 hours per 2,000,000 sq miles. 1 per square mile per
11,600,000 hrs?

It's all a gamble. It's just a question of what odds you're happy with!

And then there is the same gamble for here on Earth for larger NEOs
getting too near...


Happy star-gazing,
Martin

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- 53N 1W - Mandriva 2006 GNU Linux - An OS for Supercomputers & PCs
- http://www.mandriva.com/en/community...mandriva_linux

What's interesting to me is that before now these haven't been detected
at this rate. It really says that we haven't been looking at the Moon
with the right equipment for flashes (whether they be from meteoroids,
or a monolith :^)

Jason H.


Martin 53N 1W wrote:
http://spaceweather.com/ reports:

####
IMPACT MOON: In only 30 hours of observing, astronomers at the Marshall
Space Flight Center have recently photographed seven explosions of light
on the Moon. Each one, they believe, was caused by a meteoroid falling
from the sky and hitting the ground.

The flashes seen by the Marshall group ranged in brightness from 7th to
9th magnitude, which means they were invisible to the human eye, but
easy targets for backyard telescopes. Amateur astronomers are thus
invited to join the hunt
####

The observation table is:
http://spaceweather.com/swpod2006/23...ooke_table.jpg

There's also the NASA news link:

A Meteoroid Hits the Moon
http://science.nasa.gov/headlines/y2...arsporadic.htm


I hope those Lunans have got some good crash hats for their heads!


Keep searchin',
Martin


--
---------- OS? What's that?! (Martin_285 on Mandriva)
- Martin - To most people, "Operating System" is unknown & strange.
- 53N 1W - Mandriva 2006 GNU Linux - An OS for Supercomputers & PCs
- http://www.mandriva.com/en/community...mandriva_linux

Someone commented with surprise at this new observation.

Who points their telescope at the new moon?

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Matt Giwer wrote:
Someone commented with surprise at this new observation.

Who points their telescope at the new moon?


If you are talking about these observations at

http://spaceweather.com/swpod2006/23...ooke_table.jpg

None of these occurred during "new moon".

Here's what Starry Night Pro (compliments of the SETI Institute's Are
We Alone Radio Show) says:
Nov. 7 2005 Disk Illumination = 37% - Moon 6 days old, Mag -11.7
May 1 2006 Disk Illumination = 18.7% - Moon 4.2 days old, Mag -10.9
June 3 2006 Disk Illumination = 49.81% - Moon 7.4 days old, Mag -11.85
June 21 2006 Disk Illumination = 22.63% - Moon 24.9 days old, Mag
-11.16
July 19 2006 Disk Illumination = 34.8% - Moon 23.6 days old, Mag -11.62
Aug 3 2006 Disk Illumination = ~70.89% - Moon 9.5, Mag -12.37

Seek, Jason H.

Of mere cubic mm impacts are potentially lethal for moon-walking.

If the 25 cm diameter class of such a horrifically fast impacting
meteorite is near the limits as to what's reasonably (after the fact of
impact) as having been detectable, and if we're talking 7 of those big
suckers per 30 hours per half moon, obviously there's going to be a
moonsuit butt load of serious trouble in River City if even one of those
secondary shards of so much as a mm3 class of micro-meteor has your name
on it.

However, if you're given a full cm3 to deal with; where's the contest?
other than meteor 1 and human 0. Even the smallest of secondary impact
shards should be damn lethal as all get out, and perhaps that'll be the
case for several km in nearly all directions.

What's the mm3 class of meteor impact count per hour?

What's the cm3 class of meteor impact count per hour?

What's the optically undetectable 1000 cm3 class of meteor impact count
per hour?
-
Brad Guth


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Brad Guth wrote:
Of mere cubic mm impacts are potentially lethal for moon-walking.

If the 25 cm diameter class of such a horrifically fast impacting
meteorite is near the limits as to what's reasonably (after the fact of
impact) as having been detectable, and if we're talking 7 of those big
suckers per 30 hours per half moon, obviously there's going to be a
moonsuit butt load of serious trouble in River City if even one of those
secondary shards of so much as a mm3 class of micro-meteor has your name
on it.

However, if you're given a full cm3 to deal with; where's the contest?
other than meteor 1 and human 0. Even the smallest of secondary impact
shards should be damn lethal as all get out, and perhaps that'll be the
case for several km in nearly all directions.

What's the mm3 class of meteor impact count per hour?

What's the cm3 class of meteor impact count per hour?

What's the optically undetectable 1000 cm3 class of meteor impact count
per hour?

Inspect the exterior of the ISS and find out?

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"Matt Giwer" wrote in message


Inspect the exterior of the ISS and find out?
I didn't realize that ISS had a 1.623 m/s worth of gravity, or that it
was so freaking large that you could be terminated by those secondary
impact shards.

Apparently you don't actually know crap about much of anything, but you
do know how to avoid the truth really good.
-
Brad Guth




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