Fellow blogger Ian has a nice explanation of the how we can see Mercury's Sodium Tail using the STEREO A and B space craft . It's all to do with the angles and timing. Read on here....
Astroblog: Wait! Mercury Has a Tail (and an astreoid occultation)#links
Saturday, April 17, 2010
Wednesday, April 7, 2010
Comet Catalina C/2009 O2
This comet is now passing rapidly through STEREO HI1A FOV. This is a small movie of this faint comet traveling upper right to lower left. Approx Mag is 14 +/- 1 as the imager sees more to the Red end of the spectrum.
Sunday, April 4, 2010
GRAS - Deep Space objects
Here are a few efforts at imaging deep space objects using various Global-rent-a-scope(http://www.global-rent-a-scope.com/) telescopes. I am sure you can recognise most of them, lots o' fun. not as hard as it looks.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5HA2BewtItGifTPesbXTUSG1XzEie5ujobzGwl9AQQpW9L_niptMx7RVbZul9Q2y16ZsfH9Go3lyaZ0xR9CsAyp0UVufzj5GYGad01MtmFD5zJJI8ZBUZnHsS71GkeFKGX4fbDqHIY3M/s400/RGB-Composed+Image-m42lrg.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5HA2BewtItGifTPesbXTUSG1XzEie5ujobzGwl9AQQpW9L_niptMx7RVbZul9Q2y16ZsfH9Go3lyaZ0xR9CsAyp0UVufzj5GYGad01MtmFD5zJJI8ZBUZnHsS71GkeFKGX4fbDqHIY3M/s400/RGB-Composed+Image-m42lrg.jpg)
Comet 81P Wild via GRAS
This is Comet 81P Wild currently in fine shape. The image is crop of a composite of 5x120sec exposures which have been log scaled to show some of the tail details then set to a green false color.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjqLPW25EqONYjten997xUa5KtvVrbI984AGPLpcCG3WbhWa7GrviOtB2ec7UZrGEazWRRwYeYeXDS8N4CYD6DFhQRkDu_Mx6y8fvxx9yck6POqiwj9cc6umx24EYzQNw-s8mlv4V5GAP8/s400/G3-wild81p-exp120.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjqLPW25EqONYjten997xUa5KtvVrbI984AGPLpcCG3WbhWa7GrviOtB2ec7UZrGEazWRRwYeYeXDS8N4CYD6DFhQRkDu_Mx6y8fvxx9yck6POqiwj9cc6umx24EYzQNw-s8mlv4V5GAP8/s400/G3-wild81p-exp120.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglSO8T6uQR4PRLn0PxhUGdhwowsQQVEEa8-cnb07b4JqArntH_SfqIoS0gCcx17mebstkAUdZvwJujHQYrrhQNssMydcAMVBFFpptXtbo2DSywrQLeln9lE9fNs5PAiKrCQKrsxLrgj8g/s400/G5-wild81p-exp120.jpg)
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