12/01/2010, 22:15
NOcoverUP ha scritto:lava o fango che cresce in verticale ?dresda99 ha scritto:
la prima foto sembrano delle piante... invece è lava o fango
12/01/2010, 23:57
13/01/2010, 09:12
ubatuba ha scritto:
ciao digdug.volevo chiederti se le foto postate provengono da mars anomaly,e se i colori sono reali,o sono falsi x risaltare la struttura del terreno
ubatuba
What do RED, BG, and IR mean?
These are shorthand titles for the different types of CCDs HiRISE has. The HiRISE camera has three different color filtered CCDs: red ("RED"), blue-green ("BG"), and near-infrared ("IR"). The wavelengths of these filters are as follows: RED: 570-830 nanometers BG: <580 nanometers IR: >790 nanometers
What are the BG and IR EDRs, and How are They Different from RED?
There are ten RED CCDs, two BG CCDs, and two IR CCDs. Combining the images taken by the three different color filters allows us to create "false" color images. The BG and IR CCDs are aligned with the center two RED CCDs, providing a two-CCD-wide color swath. This means that the images captured in the BG and IR products are aligned with the images captured in the RED4 and RED5 CCDs.
What does “false color” Mean?
"False" color means that the color you see in HiRISE images is not the "true" color human eyes would see on Mars. This is because the HiRISE camera views Mars in a different part of the spectrum than human eyes do. Nevertheless, false color imagery is extremely valuable because it illuminates the distinction between different materials and textures.
13/01/2010, 12:01
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13/01/2010, 22:54
14/01/2010, 00:22
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14/01/2010, 19:27
lawliet ha scritto:
Non sono mica verticali, son delle "strisce" (orizzontali) sul terreno, questione di prospettiva.
Se fossero verticali non le vedresti assolutamente in questo modo.
greenwarrior ha scritto:
Immagine:
11,6 KB
14/01/2010, 23:58
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21/01/2010, 12:16
Colorful Streaks (ESP_016136_1525)
This is an image of the central pit of an impact crater in the ancient highlands.
The central uplifts of large impact craters often collapse to form pits on Mars, but they are still structural uplifts and often expose deep bedrock with diverse rock types which have a variety of colors.
In this enhanced color subimage, we see colorful streaks, where the bedrock is eroding, moving downhill a bit, then getting swept by the wind.
Written by: Alfred McEwen
Acquisition date: 04 January 2010
Local Mars time: 2:50 PM
Latitude (centered): -27.1 °
Longitude (East): 185.8 °
Range to target site: 257.8 km (161.1 miles)
Original image scale range: 25.8 cm/pixel
(with 1 x 1 binning) so objects ~77 cm across are resolved
Map projected scale: 25 cm/pixel and north is up
Map projection: EQUIRECTANGULAR
Emission angle: 5.4 °
Phase angle: 62.1 °
Solar incidence angle: 58 °, with the Sun about 32 ° above the horizon
Solar longitude: 33.4 °, Northern Spring
DOVE SI TROVA?(Google Mars)
http://www.google.com/mars/#lat=-27.332 ... 16136_1525
U S A G E P O L I C Y
All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible: Image: NASA/JPL/University of Arizona
Fonte foto: http://hirise.lpl.arizona.edu/ESP_016136_1525