#1
|
|||
|
|||
Moon
Hi,
single image with bresser messier R152/760 regards josef |
#2
|
|||
|
|||
Moon
"Josef Büchsenmeister" wrote in news:4766c750
: Yup, that's her. M-O-O-N that spells moon. |
#3
|
|||
|
|||
Moon
Josef:
Josef Büchsenmeister wrote: Hi, single image with bresser messier R152/760 regards josef I have no explanations, and I will probably be observing the Moon once I get my own telescope out of the CAD computer and actually constructed. I am planning a Newtonian with 10" diameter mirror and with a 60" focal length that will be on an equatorial mount. My question is this. The limb of the Moon of your image shows a shadow line that shifts horizontally a great distance. That implies that mountain ranges and crater rims are casting shadows. Several shadowy areas don't seem to comply with the mountains and craters, and they appear to me that some major differences in the ground elevation are apparent. What are the elevation differences that the shadows imply? Are the mountains and elevation changes as great as 1 Kilometer? Are there considerably greater height differences on the Moon than on the Earth? BTW, I've been using IrfanView image display software to view images. What do you suggest? BTW, where are you located? Thanks for posting the interesting image. Ralph Hertle Edison, New Jersey, USA |
#4
|
|||
|
|||
Moon
The sun is directly overhead at the limb at half moon like this was
taken at, so there are no shadows there. Slopes on the moon are too gentle for any to exist at noon except right at the poles and those are cast toward the poles not us. Foreshortened natural dark features can make such a line as can some sharpening routines. I'm really not sure what feature you are talking about. Now there are shadows that are well shown at the terminator (line between day and night). Galileo was the first to measure those to get a general idea of how high features were on the moon though its distance wasn't well known then so his estimates were somewhat off. Some peaks in the Apennine range reach about 5 km high and some craters can be that deep as well. A web search should turn up all that info. Or knowing the moon is 239,000 miles away and 2140 miles across you can estimate the sun angle and calculate your own height estimates as Galileo did. Rick Ralph Hertle wrote: Josef: Josef Büchsenmeister wrote: Hi, single image with bresser messier R152/760 regards josef I have no explanations, and I will probably be observing the Moon once I get my own telescope out of the CAD computer and actually constructed. I am planning a Newtonian with 10" diameter mirror and with a 60" focal length that will be on an equatorial mount. My question is this. The limb of the Moon of your image shows a shadow line that shifts horizontally a great distance. That implies that mountain ranges and crater rims are casting shadows. Several shadowy areas don't seem to comply with the mountains and craters, and they appear to me that some major differences in the ground elevation are apparent. What are the elevation differences that the shadows imply? Are the mountains and elevation changes as great as 1 Kilometer? Are there considerably greater height differences on the Moon than on the Earth? BTW, I've been using IrfanView image display software to view images. What do you suggest? BTW, where are you located? Thanks for posting the interesting image. Ralph Hertle Edison, New Jersey, USA -- Correct domain name is arvig and it is net not com. Prefix is correct. Third character is a zero rather than a capital "Oh". |
#5
|
|||
|
|||
Moon
On Tue, 18 Dec 2007 22:51:55 GMT, Ergonaut
wrote: "Josef Büchsenmeister" wrote in news:4766c750 t: Yup, that's her. M-O-O-N that spells moon. [claps] -- This message has been brought to you by solar and wind power. Who needs the national grid? http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com Setting a good example for your children takes all the fun out of middle age. |
#6
|
|||
|
|||
Moon MOON-SHADOW-5000-3.tif [0001/1120]
|
#7
|
|||
|
|||
Moon MOON-SHADOW-5000-3.tif [0002/1120]
|
#8
|
|||
|
|||
Moon MOON-SHADOW-5000-3.tif [0003/1120]
|
#9
|
|||
|
|||
Moon MOON-SHADOW-5000-3.tif [0004/1120]
|
#10
|
|||
|
|||
Moon MOON-SHADOW-5000-3.tif [0005/1120]
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Watch: A Funny Thing Happened on the Way to the Moon: The $100 Billion Moon Landing Fraud. | [email protected] | History | 37 | November 3rd 07 03:24 AM |
The Soviet moon rovers mission, to photograph the moon | [email protected] | Astronomy Misc | 1 | February 26th 07 09:00 PM |
War in Iraq -- Moon on the Moon Hoax -- Proof of Life After Death -- Man as Old as Coal -- Catholic Gospels Corrupt -- Extraterrestrials, UFOs | Ed Conrad | Astronomy Misc | 0 | September 15th 06 01:40 AM |
BLUE MOON IN JULY,search 2x new moon FEB 2052/sky telesc | Don McDonald | Amateur Astronomy | 6 | July 8th 04 03:37 AM |
Will Bush nuke the moon? Will the black hole bomb be tested on the moon first? | Jan Panteltje | Astronomy Misc | 3 | December 6th 03 05:41 PM |