Sun  Planets and Moons  ID: 3941

Venus Transit 2012 Composited Visuals

These visualizations were generated by compositing the small field-of-view, high-cadence closeups of Venus with the full-disk, low-cadence imagery from Solar Dynamics Observatory (SDO). Two different instruments are used: the Helioseismic and Magnetic Imager (HMI) which sees light in the visible range, and the Atmospheric Imaging Assembly (AIA) which sees light in several wavelengths in the ultraviolet range. To find out more information about these instruments, check out The Atmospheric Imaging Assembly Tutorial.

Some artifacts may be visible from the compositing, but you have to look pretty closely to see them.

The color table threshold was raised for these images, reducing the amount of noise visible in the images.

Note: There is an interesting artifact worthy of mention and clarification, and that is as Venus crosses the solar limb, the limb appears to be visible through the planet in some of the imagers (most notably the ultraviolet channels). Discussion with the scientists who built the imagers suggest this might be 'crosstalk' between the readouts of the four CCD panels that make up a complete image. It is an artifact of the imaging system.



Visualization Credits

Tom Bridgman (GST): Lead Animator
Scott Wiessinger (USRA): Producer
Please give credit for this item to:
NASA/Goddard Space Flight Center Scientific Visualization Studio

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Data Used:
SDO/AIA/304 Filter 2012-06-05T21:12 - 2012-06-06T05:24
SDO/HMI/Continuum 2012-06-05T22:00 - 2012-06-06T05:43
SDO/AIA/171 Filter 2012-06-05T21:12 - 2012-06-06T05:24
Note: While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site.

This item is part of this series:
Venus Transit

SVS >> Sun
SVS >> Transit
GCMD >> Earth Science >> Sun-earth Interactions >> Solar Activity >> Solar Flares
GCMD >> Earth Science >> Sun-earth Interactions >> Solar Activity >> Solar Ultraviolet
SVS >> Hyperwall
SVS >> Solar Dynamics Observatory
SVS >> Solar System >> Planets >> Venus
SVS >> Corona
NASA Science >> Sun
NASA Science >> Planets and Moons

GCMD keywords can be found on the Internet with the following citation: Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version