Sharpening up Jupiter

Eso_eso0833a_500

eso_eso0833a October 2nd, 2008

Credit: ESO/F. Marchis, M. Wong, E. Marchetti, P. Amico, S. Tordo

Amazing image of Jupiter taken in infrared light on the night of 17 August 2008 with the Multi-Conjugate Adaptive Optics Demonstrator (MAD) prototype instrument mounted on ESO's Very Large Telescope. This false colour photo is the combination of a series of images taken over a time span of about 20 minutes, through three different filters (2, 2.14, and 2.16 microns). The image sharpening obtained is about 90 milli-arcseconds across the whole planetary disc, a real record on similar images taken from the ground. This corresponds to seeing details about 300 km wide on the surface of the giant planet. The great red spot is not visible in this image as it was on the other side of the planet during the observations. The observations were done at infrared wavelengths where absorption due to hydrogen and methane is strong. This explains why the colours are different from how we usually see Jupiter in visible-light. This absorption means that light can be reflected back only from high-altitude hazes, and not from deeper clouds. These hazes lie in the very stable upper part of Jupiter's troposphere, where pressures are between 0.15 and 0.3 bar. Mixing is weak within this stable region, so tiny haze particles can survive for days to years, depending on their size and fall speed. Additionally, near the planet's poles, a higher stratospheric haze (light blue regions) is generated by interactions with particles trapped in Jupiter's intense magnetic field.

Image Source: https://www.eso.org/public/images/eso0833a/

Curator: European Southern Observatory, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
Jupiter
Subject - Solar System
Planet
Planet » Type » Gas Giant

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_blue Very Large Telescope (MAD) Infrared (Near-IR) 2.2 µm
Arrow_left_green Very Large Telescope (MAD) Infrared (Near-IR) 2.1 µm
Arrow_left_red Very Large Telescope (MAD) Infrared (Near-IR) 2.0 µm
Spectrum_base
Arrow_top_blue
Arrow_top_green
Arrow_top_red
Eso_eso0833a_1280
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ID
eso0833a
Subject Category
A.1   A.1.1.2  
Subject Name
Jupiter
Credits
ESO/F. Marchis, M. Wong, E. Marchetti, P. Amico, S. Tordo
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso0833a/
Type
Observation
Image Quality
Distance Notes
Facility
Very Large Telescope, Very Large Telescope, Very Large Telescope
Instrument
MAD, MAD, MAD
Color Assignment
Blue, Green, Red
Band
Infrared, Infrared, Infrared
Bandpass
Near-IR, Near-IR, Near-IR
Central Wavelength
2160, 2140, 2000
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
1730.0, 1730.0
Reference Pixel
Scale
Rotation
Coordinate System Projection:
Quality
FITS Header
Notes
Creator (Curator)
European Southern Observatory
URL
http://www.eso.org/
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
European Southern Observatory
Publisher ID
eso
Resource ID
eso0833a
Metadata Date
2011-03-16T15:35:23+01:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

 

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There is no distance meta data in this image.