фильтр на vanus

You can see some cloud structures moving on the planet.

North is up (usually I have south up, but I\'m too lazy to change it ;) )

UV-RGB recording, with UV=W47+BG39 filer, RGB = astronomik rgb filtersequipment usedBasler Ace acA640-100gmMeade Starfinder 10 VenusSunday, March 11th 2012 - 18:00 (UTC) - focal ratio f/32The seeing seemed pretty decent, but the transparancy was very poor this evening. I only managed to take one quick run of images from uv, b, g, r to ir in a couple minutes time, before Venus disappeared behind the clouds completely. Attached is the rather soft looking RGB result.equipment usedBasler Ace acA640-100gmMeade Starfinder 10 VenusSaturday, December 18th 2010 - 06:15 (UTC) - focal ratio f/32Venus in poor seeing (altitude only 19 degrees)equipment usedBasler Ace acA640-100gmMeade Starfinder 10 VenusTuesday, June 15th 2010 - 19:15 (UTC) - focal ratio f/26Animation showing the differences in cloud structure in Ir and UV light

The still image shows Venus in UV-RGB.equipment usedBasler Ace acA640-100gmMeade Starfinder 10 VenusThursday, March 15th 2012 - 16:00 (UTC) - focal ratio f/32Venus under excellent seeing conditions.

where (g) is a synthethic green channel (just the average of the other two). On March 22 I didn't capture IR, so I just R for red ;) The IR and R recordings were very much comparable, as I didn't process them hard at all (so all the color information basically comes from the UV channel).equipment usedBasler Ace acA640-100gmMeade Starfinder 10 VenusThursday, March 22nd 2012 - 17:35 (UTC) - focal ratio f/32Here is a small animation in UV light (with a W47 filter) showing clouds moving rapidly on Venus. The animation spans only 35 minutes.

Then the RGB was mapped like this:

In both cases I used UV as luminance (and UV = W47+BG39)

Category 'Venus' - image 1 to 10 (19) VenusFriday, March 23rd 2012 - 23:00 (UTC) - focal ratio f/32Here is a comparison image of Venus on March 22 and 23.

VenusVenus is the second-closest planet to the Sun, orbiting it every 224.7 Earth days. The planet is named after Venus, the Roman goddess of love. It is the brightest natural object in the night sky, except for the Moon, reaching an apparent magnitude of −4.6. Because Venus is an inferior planet from Earth, it never appears to venture far from the Sun: its elongation reaches a maximum of 47.8`. Venus reaches its maximum brightness shortly before sunrise or shortly after sunset, for which reason it is often called the Morning Star or the Evening Star.Planetary images made after June 16th 2009 were created with a DMK21AU04 camera. Unless stated otherwise, all other images are created using modified webcams.

Webcam Astrophotography by Emil Kraaikamp - images