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Collection:
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NASA Planetary Photo Journal Collection
Collection
NASA Planetary Photo Journal Collection
Collection
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Title:
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Uranus - family portrait
Title
Uranus - family portrait
Title
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Original Caption Released with Image:
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This "family portrait" of Uranus' five largest moons was compiled from images sent back Jan. 20, 1986, by the Voyager 2 spacecraft. The pictures were taken through a clear filter from distances of 5.0 million to 6.1 million kilometers (3.1 million to 3.8 million miles). In this comparison, we see the relative sizes and relativities of the satellites. From left, in order of increasing distance from the planet, they are Miranda, Ariel, Umbriel, Titania and Oberon. The two largest, Oberon and Titania, are about half the size of Earth's Moon, or roughly, 1,600 kilometers (1,000 miles) in diameter. Miranda, smallest of the five, has about one-quarter to one-third the diameter. Even in these distant views, the satellites exhibit distinct differences in appearance. On average, Oberon and Titania reflect about 20 percent of the sunlight, Umbriel about 12 percent, Ariel and Miranda about 30 percent. Ariel shows the largest contrast on its surface, with the brightest areas about 25 percent. All five satellites show only slight color variations on their surfaces, with their average color being very nearly gray. The best views of the satellites will be obtained Jan. 24, the day of closest approach. The Voyager project is managed for NASA by the Jet Propulsion Laboratory.
Original_Caption_Rel eased_with_Image
This "family portrait" of Uranus' five largest moons was compiled from images sent back Jan. 20, 1986, by the Voyager 2 spacecraft. The pictures were taken through a clear filter from distances of 5.0 million to 6.1 million kilometers (3.1 million to 3.8 million miles). In this comparison, we see the relative sizes and relativities of the satellites. From left, in order of increasing distance from the planet, they are Miranda, Ariel, Umbriel, Titania and Oberon. The two largest, Oberon and Titania, are about half the size of Earth's Moon, or roughly, 1,600 kilometers (1,000 miles) in diameter. Miranda, smallest of the five, has about one-quarter to one-third the diameter. Even in these distant views, the satellites exhibit distinct differences in appearance. On average, Oberon and Titania reflect about 20 percent of the sunlight, Umbriel about 12 percent, Ariel and Miranda about 30 percent. Ariel shows the largest contrast on its surface, with the brightest areas about 25 percent. All five satellites show only slight color variations on their surfaces, with their average color being very nearly gray. The best views of the satellites will be obtained Jan. 24, the day of closest approach. The Voyager project is managed for NASA by the Jet Propulsion Laboratory.
Original Caption Released with Image
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Addition Date:
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1999-06-22
Addition_Date
1999-06-22
Addition Date
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Produced By:
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JPL
Produced_By
JPL
Produced By
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Mission:
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Voyager
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Spacecraft:
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Voyager 2
Spacecraft
Voyager 2
Spacecraft
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Target Name:
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Miranda
Target_Name
Miranda
Target Name
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Is a satellite of:
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Uranus
Is_a_satellite_of
Uranus
Is a satellite of
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Instrument:
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Imaging Science Subsystem - Narrow Angle
Instrument
Imaging Science Subsystem - Narrow Angle
Instrument
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Product Size:
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975 samples x 195 lines
Product_Size
975 samples x 195 lines
Product Size
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Primary Data Set:
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Voyager EDRs
Primary_Data_Set
Voyager EDRs
Primary Data Set
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Producer ID:
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P29464
Producer_ID
P29464
Producer ID
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facet_what:
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Moon
facet_what
Moon
facet_what
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facet_what:
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Voyager
facet_what
Voyager
facet_what
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facet_what:
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Voyager 2
facet_what
Voyager 2
facet_what
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facet_what:
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Earth
facet_what
Earth
facet_what
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facet_what:
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Miranda
facet_what
Miranda
facet_what
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facet_what:
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Uranus
facet_what
Uranus
facet_what
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facet_what:
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Umbriel
facet_what
Umbriel
facet_what
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facet_what:
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Ariel
facet_what
Ariel
facet_what
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facet_what:
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Oberon
facet_what
Oberon
facet_what
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facet_what:
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Titania
facet_what
Titania
facet_what
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facet_what:
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Imaging Science Subsystem (ISS)
facet_what
Imaging Science Subsystem (ISS)
facet_what
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facet_where:
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Jet Propulsion Laboratory
facet_where
Jet Propulsion Laboratory
facet_where
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facet_where:
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Miranda
facet_where
Miranda
facet_where
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facet_where:
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Uranus
facet_where
Uranus
facet_where
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facet_where:
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Umbriel
facet_where
Umbriel
facet_where
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facet_where:
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Ariel
facet_where
Ariel
facet_where
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facet_where:
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Oberon
facet_where
Oberon
facet_where
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facet_where:
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Titania
facet_where
Titania
facet_where
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facet_where:
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Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
facet_where
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Image #:
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PIA01975
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UID:
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SPD-PHOTJ-PIA01975
UID
SPD-PHOTJ-PIA01975
UID
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orignial url:
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orignial_url
orignial url
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