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The main use of pngcrush is for reducing the size of the image data contained in the IDAT section. The pixel data in a PNG file is compressed using LZ77 algorithm (which tries to find repeated byte sequences in the source data), and then further compressed with Huffman algorithm. This combination is referred to as deflate compression. Before ...
Annular eclipse of the Sun by Phobos (Curiosity, 20 August 2013) Eclipse of the Sun by Phobos, the larger of the two moons of Mars, in real time (Curiosity, 20 August 2013) The two moons of Mars, Phobos and Deimos, are much smaller than Earth's Moon, greatly reducing the frequency of solar eclipses on that planet.
According to its author, this program can often get higher compression than other optimizers by 5–10%. [3] It is possible to compress some inflated PNGs to a size below 1% of the original file. [4] PNGOUT was also available as a plug-in for the freeware image viewer IrfanView and can be enabled as an option when saving files.
Transits of Phobos from the Mars Opportunity rover landing site Duration Earth time Duration (Local Solar time) Minim. separ. Phobos ang. diam. Sun ang. diam. Sun alt. prior set of transits occurred in late April 2003 – early May 2003: 7 March 2004 (02:46:25 – 02:46:54) 08 18 32 – 08 19 00 671" 779.2" 1230.7" 34.6° 8 March 2004
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Meanwhile, most of the rest of the US will be able to witness the eclipse in at least some way. Monday’s eclipse will last for four minutes and 28 seconds, twice as long as the last solar ...
File:A Man for All Seasons (1966 movie poster).gif; File:A Mermaid in Paris.jpg; File:A Midsummer Night's Dream Poster.jpg; File:A Midsummer Night's Sex Comedy film poster.png; File:A Million Miles Away film poster.png; File:A Minecraft Movie poster.jpg; File:A Most Wanted Man Poster.jpg; File:A new kind of love poster.jpg; File:A Nice Girl ...
Original file (SVG file, nominally 4,000 × 2,000 pixels, file size: 935 KB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.