Posted on 20 December 2013 by Daniel
#FirstVideo: Gaia seen in space
Last night, Nick James, based in the UK, captured some fantastic views of Gaia as it departed Earth en route to L2, about 1.5 million km away from Earth opposite the Sun. The video acquired at about 01:00 GMT this morning. (Editor's note: Several other very good images have just been shared and we'll get them posted as soon as possible.) Well done, Nick! And thanks for sharing! Nick wrote: Time lapse movie of the Gaia spacecraft taken using a C11 telescope and an ST9XE CCD camera. Each frame is a 5-second exposure and the animation is played at 25 fps. At the time the images were taken, Gaia was around 158...
Posted on 9 October 2013 by Guest Blogger
Opening (activating) the gates of Gaia
As you may know already from previous blog entries Gaia will fly the biggest camera ever into space. The image created by the two telescopes will be huge: about 1 m wide and 0.5 m high. To cover this entire area you need 106 different CCDs (detectors). Most of them are white light CCDs. Additionally there are blue sensitive (BP) and red sensitive (RP) CCDs. About one billion pixels (picture elements) are distributed over the focal plane as each CCD consists of about 9 million pixels. CCD images can have saturated pixels as you may have experienced with your digital camera when taking photos or videos and a bright light source is...