About the Object Object Name: Mars Object Description: Closest Approach 2003 Distance from the Sun: The semi-major axis of Mars' orbit about the sun is 1.52 Astronomical Units (A.U.) or 142 million miles (228 million km). Distance from the Earth: At the 2003 closest approach, Mars was approximately 35 million miles (56 million kilometers) from Earth. Dimensions: The planet has a diameter of 4,222 miles (6,794 kilometers) at the equator. About the Data Data Description: These data are taken from HST proposal 10065 by J. Bell (Cornell U.), M. Wolff (Space Science Institute), A. Lubenow (STScI), and K. Noll (STScI). Additional image processing and analysis support from: K. Noll and A. Lubenow (STScI); M. Hubbard (Cornell U.); R. Morris (NASA/JSC); P. James (U. Toledo); S. Lee (U. Colorado); and T. Clancy, B. Whitney and G. Videen (SSI); and Y. Shkuratov (Kharkov U.). Instrument: HST/WFPC2 Exposure Dates/Filters: Image 1: August 26, 2003 22:21:52 - 23:12:18 Universal Time; F410M ("B"), F502N ("V"), F631N ("R")
Image 2: August 27, 2003 09:35:28 - 10:22:54 Universal Time; F410M (B), F502N (V), F673N (R) About the Image Image Credit: NASA, J. Bell (Cornell U.), and M. Wolff (SSI) Release Date: Image 1: August 27, 2003 6:00AM (EDT) Image 2: August 27, 2003 4:00PM (EDT)
Fast_Facts
Technical facts about this news release:
About the Object Object Name: Mars Object Description: Closest Approach 2003 Distance from the Sun: The semi-major axis of Mars' orbit about the sun is 1.52 Astronomical Units (A.U.) or 142 million miles (228 million km). Distance from the Earth: At the 2003 closest approach, Mars was approximately 35 million miles (56 million kilometers) from Earth. Dimensions: The planet has a diameter of 4,222 miles (6,794 kilometers) at the equator. About the Data Data Description: These data are taken from HST proposal 10065 by J. Bell (Cornell U.), M. Wolff (Space Science Institute), A. Lubenow (STScI), and K. Noll (STScI). Additional image processing and analysis support from: K. Noll and A. Lubenow (STScI); M. Hubbard (Cornell U.); R. Morris (NASA/JSC); P. James (U. Toledo); S. Lee (U. Colorado); and T. Clancy, B. Whitney and G. Videen (SSI); and Y. Shkuratov (Kharkov U.). Instrument: HST/WFPC2 Exposure Dates/Filters: Image 1: August 26, 2003 22:21:52 - 23:12:18 Universal Time; F410M ("B"), F502N ("V"), F631N ("R")
Image 2: August 27, 2003 09:35:28 - 10:22:54 Universal Time; F410M (B), F502N (V), F673N (R) About the Image Image Credit: NASA, J. Bell (Cornell U.), and M. Wolff (SSI) Release Date: Image 1: August 27, 2003 6:00AM (EDT) Image 2: August 27, 2003 4:00PM (EDT)
Fast Facts
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*Image Type:*: Astronomical
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*Image Type:*: Astronomical
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*Release Date*:August 27, 2003 06:00 AM (EDT)
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*Release Date*:August 27, 2003 06:00 AM (EDT)
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*News Release Number:*: STScI-2003-22f
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*News Release Number:*: STScI-2003-22f
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*Title*:Mars: Closest Encounter
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*Title*:Mars: Closest Encounter
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*Additional image processing and analysis support from:*: K. Noll and A. Lubenow (STScI [ http://www.stsci.ed…]); M. Hubbard (Cornell U.); R. Morris (NASA [ http://www.nasa.gov/]/JSC); P. James (U. Toledo); S. Lee (U. Colorado); and T. Clancy, B. Whitney and G. Videen (SSI); and Y. Shkuratov (Kharkov U.)
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*Additional image processing and analysis support from:*: K. Noll and A. Lubenow (STScI [ http://www.stsci.ed…]); M. Hubbard (Cornell U.); R. Morris (NASA [ http://www.nasa.gov/]/JSC); P. James (U. Toledo); S. Lee (U. Colorado); and T. Clancy, B. Whitney and G. Videen (SSI); and Y. Shkuratov (Kharkov U.)
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*Description*:
These two images, taken 11 hours apart with NASA's Hubble Space Telescope, reveal two nearly opposite sides of Mars. Hubble snapped these photos as the red planet was making its closest approach to Earth in almost 60,000 years. Mars completed nearly one half a rotation between the two observations.
The image at left was assembled from a series of exposures taken between 6:20 p.m. and 7:12 p.m. EDT Aug. 26 with Hubble's Wide Field and Planetary Camera 2. Hubble snapped this photo when Mars and Earth were 34,648,840 miles (55,760,220 km) apart.
The prominent Martian features in this photo are Syrtis Major, the "shark-fin" shape on the right and the Hellas impact basin, the circular feature near the center of the image.
The image at right was snapped within minutes of the red planet's close rendezvous with Earth, when the two planets were 34,647,420 miles (55,757,930 km) apart. Mars is a mere 1,400 miles closer to Earth in this picture than in the one taken 11 hours earlier. This photo was assembled from a series of exposures taken between 5:35 a.m. and 6:20 a.m. EDT Aug. 27 with Hubble's Wide Field and Planetary Camera 2.
The striking features in this portrait are Olympus Mons [the oval-shaped object just above center], the largest volcano in the solar system and Solis Lacus, an immense dark marking also known as the "Eye of Mars" [below, right].
Both images show most of the southern polar ice cap. The pictures were taken during the middle of summer in the Southern Hemisphere. During this season the Sun shines continuously on the southern polar ice cap, causing the cap to shrink in size [bottom of image]. The orange streaks are indications of dust activity over the polar cap.
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*Description*:
These two images, taken 11 hours apart with NASA's Hubble Space Telescope, reveal two nearly opposite sides of Mars. Hubble snapped these photos as the red planet was making its closest approach to Earth in almost 60,000 years. Mars completed nearly one half a rotation between the two observations.
The image at left was assembled from a series of exposures taken between 6:20 p.m. and 7:12 p.m. EDT Aug. 26 with Hubble's Wide Field and Planetary Camera 2. Hubble snapped this photo when Mars and Earth were 34,648,840 miles (55,760,220 km) apart.
The prominent Martian features in this photo are Syrtis Major, the "shark-fin" shape on the right and the Hellas impact basin, the circular feature near the center of the image.
The image at right was snapped within minutes of the red planet's close rendezvous with Earth, when the two planets were 34,647,420 miles (55,757,930 km) apart. Mars is a mere 1,400 miles closer to Earth in this picture than in the one taken 11 hours earlier. This photo was assembled from a series of exposures taken between 5:35 a.m. and 6:20 a.m. EDT Aug. 27 with Hubble's Wide Field and Planetary Camera 2.
The striking features in this portrait are Olympus Mons [the oval-shaped object just above center], the largest volcano in the solar system and Solis Lacus, an immense dark marking also known as the "Eye of Mars" [below, right].
Both images show most of the southern polar ice cap. The pictures were taken during the middle of summer in the Southern Hemisphere. During this season the Sun shines continuously on the southern polar ice cap, causing the cap to shrink in size [bottom of image]. The orange streaks are indications of dust activity over the polar cap.
