Archivo de imágenes de Hubble
Imagen HST de los tránsitos lunares de Saturno
This sequence of images captures the parade of several of Saturn's moons transiting the face of the gas giant planet. This is a rare event because the rings are tilted edge on to Earth every 15 years. The top frame captures the giant moon Titan and its shadow near Saturn's northe...
- Fecha
- Jan 1, 2009
- Misión
- Hubble Space Telescope
- ID de archivo
- hubblesite-images-2009-12-2514-image
This sequence of images captures the parade of several of Saturn's moons transiting the face of the gas giant planet. This is a rare event because the rings are tilted edge on to Earth every 15 years. The top frame captures the giant moon Titan and its shadow near Saturn's northern polar hood. Tiny Mimas and its shadow have just entered the left limb of Saturn, slightly above the rings. To the far left off the disk, Dione, the brightest of the icy moons in this view – and Enceladus, fainter and farther to the left – can easily be seen just above the rings. In the center frame, Dione and Enceladus can be seen near the western limb of Saturn, while Titan's shadow is off the limb, and Mimas is on the right most limb, its shadow also now off the limb. In the bottom frame, Dione and its shadow are centered above Enceladus and its shadow. Titan is now off the right limb. This picture sequence was taken with Hubble's Wide Field Planetary Camera 2 on February 24, 2009, when Saturn was at a distance of roughly 775 million miles (1.25 billion kilometers) from Earth. Hubble can see details as small as 190 miles (300 km) across on Saturn.
Credits
NASA, ESA, and the Hubble Heritage Team (STScI/AURA);Acknowledgment: M.H. Wong (STScI/UC Berkeley) and C. Go (Philippines)
Detalles de la imagen
| About The Object | |
|---|---|
| Object Name | Saturn |
| Object Description | Planet with Satellites |
| Distance | The semi-major axis of Saturn's orbit about the sun is 9.5 astronomical units (A.U.) or roughly 1.4 billion km. |
| Dimensions | The planet (without rings) has a diameter of roughly 75,000 miles (120,000 km) at the equator. |
| About The Data | |
| Data Description | The Hubble images and videos were created from HST data from proposal : K. Noll, Z. Levay, M. Mutchler, L. Frattare, C. Christian, F. Hamilton, and H. Bond (The Hubble Heritage Team/STScI/AURA). B. Januszewski (STScI), M.H. Wong (UC Berkeley/STScI), and C. Go (Phillipines) also helped with image conception, proposal preparation/processing and data analysis. |
| Instrument | HST>WFPC2 |
| Exposure Dates | February 24, 2009 |
| Filters | F439W (B), F555W (V), and F675W (R) |
| About The Image | |
| Color Info | The image is a composite of separate exposures made by the WFPC2 instrument on the Hubble Space Telescope. Three filters were used to sample broad wavelength ranges. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: Blue: F439W (B) Green: F555W (V) Red: F675W (R) |
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Ver en NASA.gov