Real time views of Mars

Anyone here know of an applet that can give you a real time view of the
disk of Mars at a precise instant? I don't have Starry Night pro or
anything like that, but wanted to identify surface markings in
telescopic observations. Which of the two poles is directed toward
Earth at the moment?

Thanx,

AA
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"AA Institute" ha scritto nel messaggio
ps.com...
Anyone here know of an applet that can give you a real time view of the
disk of Mars at a precise instant? I don't have Starry Night pro or
anything like that, but wanted to identify surface markings in
telescopic observations. Which of the two poles is directed toward
Earth at the moment?

Thanx,

AA

Mars Previewr II. Download at
http://skyandtelescope.com/resources...icle_328_1.asp

Clear Skies,

--
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Beta Persei
45° 35' N
08° 51' E

remove "_nospam" to reply

Hi,

I have downloaded the Mars Previewer, extracted it, and then ran the
exe file. Nothing happens after I run it.

Any ideas on how to get it to work?

Thanks,
jeff

"Jeffk1965" ha scritto nel messaggio
oups.com...
Hi,

I have downloaded the Mars Previewer, extracted it, and then ran the
exe file. Nothing happens after I run it.

Any ideas on how to get it to work?

Thanks,
jeff

I have MP ver 2.01, it's a 3 MB zip file. Unpacked it, run the setup and it
works without troubles. If you still have problem send your full e-mail
address and I'll send the file.
Clear skies,

--
---
Beta Persei
45° 35' N
08° 51' E

remove "_nospam" to reply

It still does not work and I unzipped it.

Here is my e-mail:


Thanks,
jeff

On 4 Sep 2005 05:35:43 -0700, "Jeffk1965"
wrote:

I have downloaded the Mars Previewer, extracted it, and then ran the
exe file. Nothing happens after I run it.

Any ideas on how to get it to work?

I recall when everyone was looking at Mars a couple of years ago, there
were several sources for MP2, some outdated, some that (falsely)
triggered virus scanners, and some that just didn't install. Sounds like
you got one of the last, and need another source.

_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

Lots of options here, from everyone...

Mars Previewer II seems to work just fine, so thanks. The
planetocentric declination of Earth is quoted as -12.2 degrees, that
means Mars' south pole is tilted toward Earth, and the ice cap should
be easily on view in my 8-inch Newt... unless it's summer in the
southern hemisphere of Mars... in which case, the ice cap will be
small. Anyone glimpsed the ice cap yet?

I'm told the summer solstice on Mars has just passed, but was that
summer in the *southern* hemisphere?


AA
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On 4 Sep 2005 13:02:04 -0700, "AA Institute"
wrote:

Anyone glimpsed the ice cap yet?

I first saw it (this pass) in early July.

_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

That reminds me, it recently occurred to me that, because Mars is in a
larger orbit than Earth, the increase in total size of a polar ice cap
coincides with a decrease in the proportion of it visible from Earth, and
vice versa. What is the effect on the total amount of ice cap at each end
visible from Earth?

"AA Institute" wrote in message
oups.com...

Mars Previewer II seems to work just fine, so thanks. The
planetocentric declination of Earth is quoted as -12.2 degrees, that
means Mars' south pole is tilted toward Earth, and the ice cap should
be easily on view in my 8-inch Newt... unless it's summer in the
southern hemisphere of Mars... in which case, the ice cap will be
small. Anyone glimpsed the ice cap yet?

I'm told the summer solstice on Mars has just passed, but was that
summer in the *southern* hemisphere?

Well, actually trying to visualise things in 3D in my head, I just
realised it to be a gemoetrical thing. And you are right about the ice
cap shrinking toward each and every opposition of Mars. During those
times, whichever pole (north or south) is pointed toward Earth, is also
pointed toward the Sun, so the solar radiation incidence on that pole
would be greatest, causing it to shrink to a minimum, depending on the
magnitude of the tilt.
Of course, a lot will also depend on Mars' heliocentric distance at the
time, which varies markedly between oppositions because of the higher
orbital eccentricity.

So, currently, it is midsummer in the southern hemisphere of Mars. For
anyone on vacation there, it'd be time to get the deck chairs out!!!
:-)

Interestingly enough, according to the TES instrument onboard the Mars
Global Surveyor spacecraft, the southern tropics (Martian latitude,
circa. -30 degrees or so) currently experience a daily maximum
temperature of a comfy +20 degrees celsius... can't be bad!

Here's the chart:-
http://tes.asu.edu/daily.html


AA
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"The ultimate dream adventure awaiting humanity..."
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