Amateur astronomy equipment, techniques, info, etc

Archive for December, 2011

Found: A Martian leg

The following links take you to a fossilized human leg found on Mars
by NASA Mars Exploration Rover Spirit on sol 1863 and sol 1866. If you
find anything wrong with the identification of the Martian fossil leg,
please do let me know with your disproof.
Labelled photos:
Earthly human leg transverse section:
Link 1:
http://www.wretch.cc/album/show.php?i=lin440315&b=20&f=1555429388&p=131
Martian leg transverse section:
Link 2:
http://www.wretch.cc/album/show.php?i=lin440315&b=20&f=1555415619&p=127
(Colorized)
Link 3:
http://www.wretch.cc/album/show.php?i=lin440315&b=20&f=1555422705&p=129
(NASA photo enlarged)
Link 4:
http://www.wretch.cc/album/show.php?i=lin440315&b=20&f=1555422704&p=130
(NASA microscopic image enlarged)

Original photos:
Transverse section of a human leg in the website of Visuals Unlimited:
Link 5:
http://www.visualsunlimited.com/c/visualsunlimited/image/I0000ojG5qQ8…
NASA MER Spirit sol 1866 Panaramic photo showing general location of
the transverse section of a leg:
Link 6 :
http://marsrovers.nasa.gov/gallery/all/2/p/1866/2P292019465EFFB0OAP25…
NASA MER Spirit sol 1863 microscopic image of the transverse section
of a leg:
Link 7: http://marsrovers.nasa.gov/gallery/all/2/m/1863/2M291757301EFFB0OAP29…

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hi

Hello, everyone, just introducing my self! I hope to be apart of some
great discussions!

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Science Learns. Does God?

Hey everyone, i found this great article and I Let me know what you
think?
Let me know what you think?

http://blogs.discovermagazine.com/badastronomy/2009/03/25/turtles-all…

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The Science of Cute

Hi everyone, i just that i would stop by and  share it with  this
wonderful video

I hope you guys find it interesting, to say the least!

Let me know what you think

http://www.youtube.com/watch?v=3Ji0bvwXAvI

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SCIENCE WINS IN TEXAS!! Barely.

Hi everyone, i just that i would stop by and  share it with  this
wonderful video

I hope you guys find it interesting, to say the least!

Let me know what you think

http://www.youtube.com/watch?v=3Ji0bvwXAvI

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The Science of Cow Tipping

Hello groupies, i found this great pic and

i just had  to share it with you guys! its pretty
interesting!
I hope you find it as interesting as i have!

Let me know what you think

http://images.thetimes.co.uk/TGD/picture/0,,242244,00.jpg

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DAYTIME METEORS: The annual Arietid meteor shower peaks on Sunday

Space Weather News for June 5, 2009
http://spaceweather.com

DAYTIME METEORS: The annual Arietid meteor shower peaks on Sunday, June 7th. The Arietids
are unusual because they are daytime meteors; they stream out of a point in the sky not
far from the sun.  The best time to look is just before dawn on Sunday morning when it may
be possible to spot a small number of Arietids skimming the top of Earth’s atmosphere.
Such "Earthgrazing" meteors tend to be long, colorful, and very pretty. After daybreak,
when the meteors are no longer visible to the human eye, you can listen to radar echoes
from the Arietids by tuning in to our online meteor radar: http://spaceweatherradio.com .

"The Arietids are the strongest daylight shower of the year," notes Bob Lunsford of the
American Meteor Society.  "If you could see them through the sun’s glare, you would count
as many as 60 per hour. Also, don’t forget that the daytime Zeta Perseids peak only two
days later and are considered the second strongest daylight shower. In all my years of
viewing I have never seen a Zeta Perseid, but I have seen a few Arietids. They have all
been Earthgrazers and very impressive meteors."

Please visit http://spaceweather.com for updates and more information.

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Space Weather News for May 26, 2009

Space Weather News for May 26, 2009
http://spaceweather.com

SPACE STATION FLARES:  Lately, a growing number of observers are reporting intense
"flares" coming from the International Space Station (ISS).  During some nighttime flybys,
the luminosity of the space station surges 10-fold or more. Some people have witnessed
flares of magnitude -8 or twenty-five times brighter than Venus.  A movie featured on
today’s edition of http://spaceweather.com shows what is happening: sunlight glints from
the station’s recently expanded solar arrays in a shadow-casting flash. Currently, the
flares are unpredictable.  You watch a flyby not knowing if one will happen or how bright
it might be.  That’s what makes the hunt for "ISS flares" so much fun.

Sky watchers in North America should be alert for flares this week.  The ISS is making a
series of evening passes over many US and Canadian towns and cities.  Flyby times are
available from the Simple Satellite Tracker: http://spaceweather.com/flybys

Would you like a phone call when the ISS is about to fly over your hometown?  Sign up for
Space Weather PHONE: http://spaceweatherphone.com

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Who uses Thermal imagers for scope & field work?

Hi,

Anyone here uses a thermal imager that can see into the
far infrared (7.5 to 13 micron) to check on the thermal
status of their dobsonians, newtonians or even SCTs
and refractors? See:
http://www.goinfrared.com/cameras/all_cameras.asp
Thermal Imagers are also useful to detect
wild animals in the fields as their heat signature clearly
stand out in the grass or trees. You can detect moisture
developing in the optics or tubes by lower temperature
compared to ambient. In the dobsonians and newtonians
or other open tubes. One can use it to see if the
internal space has reach thermal equilibrium by presence
of any heat current or wave. How about SCT, has
anyone tried viewing at the surface of the tubes
or front to see any changes in temperature?
Any thermal imager is sensitive down to 0.05 Celsius
so you should detect any changes in temperature
that small even if not directly on the inside because
the imagers can’t see thru glass but just surface.
Also the concept of emissivity seems to make it
complicated because shiny aluminum tubes have lower emissivity  so it
may not show its true temperature
if you don’t get the emissivity setting adjusted right
or paint the tube black to get close to blackbody.
That’s why I’m asking if anyone has actually use
a thermal imager in astro viewing in the field. What are
your positive and negative experience about it?

Hayden

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Skin Cancer is Spreading Day by Day

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Skin Cancer is Spreading Day by Day so this site is for u who teaches
u how to care with this type of disease. . Visit
http://mesotheliomaguide-4all.blogspot.com/

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