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Venus All images have been acquired with a Celestron
Schmidt-Cassegrain 235 mm telescope |
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Venus 2012
C14 telescope |
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Fair seeing
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Very good seeing. Small scale clouds visibile. IR image |

Good seeing, IR image |

Poor seeing, IR image |

Fair seeing, IR image |

Fair seeing, some small scale clouds. IR image |

Poor to fair seeing. IR-UV images show different clouds
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Previous Venus seasons
C9,25 telescope
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Fair to good seeing. Still small scale features in IR image
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Fair seeing. infrared image confirms the patterns seen in the
previous observations
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Venus grow in diameter in few days, approaccing the maximum
elongation. Infrared image
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Fair to good seeing. Still prominent infrared patterns in the
atmosphere of Venus
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Fair seeing. Infrared image shows pattern similar to May 25 image |

Good seeing. Infrared image shows clouds structure similar to May
25-26 images
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Fair seeing, only infrared image because the clouds |
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Very poor seeing. Still some features in UV and IR, but quite
blurred |

Full complete spectral coverage of Venus clouds with good seeing.
Note the similarities of IR images respect to the previous day |

Near infrared images with excellent seeing show many small scale
clouds and their movement.
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Full complete spectral coverage of venus clouds with good seeing |

Full complete spectral coverage of Venus clouds |

Infrared and UV images showing the rotation of clouds deck
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Uv and IR images. Note the rotation of IR clouds in 4 hours. |

Fair seeing. Infrared image only |

Reprocessing of two best images of Venus during 2010 elongation,
showing the results in near UV (left) and near IR (right) achievable
with a 235 mm telescope
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Poor seeing. Infrared images taken with an IR 1000 and methane
filters (890 nm).
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Poor seeing, only IR image (965 nm)
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Poor seeing in UV but excellent seeing in IR. Note the small
scale clouds |
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UV map of 25-29 rotation |

Ultraviolet image and 4 infrared images showing clouds rotation |

Ultraviolet and infrared images showing the rotation of clouds
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UV and IR images. Note the different aspect of the clouds |

UV and IR images showing clouds rotation. The superrotation of
the atmosphere is visibile in both wavelengths, although IR wind
speed is smaller than UV |

Poor seeing. UV image |
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Very good seeing. Many details in UV and IR image. |

The Venus nightside imaged at 1 micron wavelength shows cleary some
surface details. Comparison with altimetric radar image taken by
Magellan spacecraft shows a perfect matchig.
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Low clouds patterns in the nightside of Venus |
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A completa cylindrical map showing the cloud coverage of April
6-9 2010 rotation |

Poor seeing. Curious dark structures at equatorial latitudes
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Fair seeing. Some low scale bright clouds can be seen near the
left limb |
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Poor seeing. A prominent dark cloud |

Poor seeing. Bright equatiorial clouds
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Good seeing. Venus shows fine details in the thick and complex
cloud's structure |
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Venus in 2010. Poor seeing but large scale structure of the complex
cloud's system is visible |

Poor seeing, another daylight image. The Y shaped clouds appear again,
as in the April 23rd and 10th 2007 images
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Poor seeing. Dark cloud close to the equatorial regions |

New season of Venus, daylight image at UV wavelength |

Good seeing. Another comparison bewteen UV (left) and IR image, and
an attempt to built a color picture made of those two channels
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Poor seeing. comparison bewteen UV (left) and IR image. The features
of che clouds are completely different
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Good seeing, IR 1 micron image shows some features and their moion
across the time |

Good seeing. A prominent equatorial bright cloud |

Cylindrical map of 20-23 April rotation. Compare this map with the
previous to see the changes in cloud structure
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Very good seeing. The classical Y shaped of the clouds clearly
visible |

Fair to good seeing. High contrast of the dark equatorial and
filiform cloud
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Poor to fair seeing. Some small dark features in the clouds |

Poor seeing. Note the evolution of the clouds compared to April 16th
image |

Cylindrical map of 16-19 April rotation at UV wavelength
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UV (left) and IR image at 1 micron showing details at different
optical depths. |

UV image with poor seeing. Note te complex cloud structure near the
venusian equator |

Poor seeing. Another comparison between violet and UV image
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UV and violet image showing the same strange C shaped structure in
Venus atmosphere |

Very poor seeing, Comparison bewteen CCD camera with U filter and
webcam with violet N.47 filter.
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Poor seeing. Violet image with a webcam |

Cylindrical map of the clouds from 7 to 10 April 2007 |

Fair seeing, daylight image. Prominent dark equatorial cloud |

Daylight image at UV wavelength. Again the Y shaped cloud at the
equator |

The venus nightside glowing at IR wavelength. Some irregularities
visible; maybe real details?
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Daylight image. A thin crescent in IR light |

Daylight image in IR and Violet light. Some low contrast features in
IR image, Y shaped cloud in UV picture.
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Poor seeing. Dark cloud at equatorial latitudes
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Good to very good seeing. Again the Y shaped clouds near the equator
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Good seeing, violet light, next day. Not the change in clouds
features |

Good seeing, violet light. Clouds features clearly visible |

The Y shaped clouds at violet walenength |

Visible light; Venus at dicotomy |

First image at UV-violet wavelengths shows some large scale
structures in Venus atmosphere |