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: http://www.mso.anu.edu.au/pfrancis/pink/
Дата изменения: Unknown Дата индексирования: Mon Oct 1 23:51:04 2012 Кодировка: Поисковые слова: gro j1655-40 |
The following pictures are true-color: ie. they are what the human eye would see were it one thousand million times more sensitive. Unfortunately, the pink colour is quite subtle and doesn't always come out when printing these pictures. If you are having this trouble, I've included pictures below with stretched colour maps, to emphasise the colours: these should print better.
Original Raw Data, before the smoothing, clipping and
bad pixel removal that I have applied to the original data. This is the
highest resolution you'll get! Funny colour marks all over the image are
bad pixels on the CCD or cosmic ray hits.The object is half way up but
somewhat right of centre.
Clipped subset of the above, showing the pink
black hole and the star lying just south-west of it on the sky.
Quasar (black hole) PKS 1437-153, showing its pink colour. We have now discovered about 100 quasars like this. If the colour doesn't show up on your printer, try the colour amplified images where I've computer- enhanced the colour.
This picture was taken using the one-metre telescope at Siding Spring Observatory. This quasar is about one billion light-years away (30,000,000,000,000,000,000,000 kilometres). The colour picture was produced by combining separate blue, green and red images. Each image was obtained with a CCD camera and a 300 second exposure: all images were obtained in good conditions on the night of 13th July 1997. North is up and East is to the left. The whitish object in the bottom right is an unrelated star in our own galaxy, less than 1000 light years away from Earth.
This picture was taken using the 2.3-metre telescope at Siding Spring Observatory. This quasar is about eight billion light-years away (240,000,000,000,000,000,000,000 kilometres). The colour picture was produced by combining separate blue, green and red images. Each image was obtained with a CCD camera and a 180 second exposure: all images were obtained in good conditions on the night of 9th September 1997. North is up and East is to the left.
This picture was taken using the 2.3-metre telescope at Siding Spring Observatory. This quasar is about five billion light-years away (150,000,000,000,000,000,000,000 kilometres). The colour picture was produced by combining separate blue, green and red images. Each image was obtained with a CCD camera and a 30 minute exposure: all images were obtained in good conditions on the night of 15th April 1997. North is up and East is to the left. The other objects in the picture are unrelated stars and galaxies at different distances.