It is currently Mon Sep 23, 2019 9:47 am


Post new topic Reply to topic  [ 2 posts ] 
Author Message
PostPosted: Tue Apr 03, 2018 10:25 am 
Offline

Joined: Mon Jan 09, 2006 11:05 am
Posts: 5264
Location: Lancashire
Nasa's new space telescope, the Transiting Exoplanet Survey Satellite ( TESS ), is due for launch from Florida on a FalconX 9 rocket on April 16th. TESS will carry on where the Kepler space telescope left off.
Kepler's gyroscopic positioning system broke down four years after its launch in 2013, but it has been possible to keep it running on a limited operational basis until now. But now, Kepler's fuel has almost run out.
Over the past 20 years, Kepler discovered almost all of the 3,500 exoplanets that have been recorded, and there's still plenty more back-data to sift through. In this respect, Kepler lives on. It's hoped that TESS will discover many thousands more exoplanets, some of them rocky Earth-sized and others " super-Earths".
TESS will take about sixty days to reach a first-time-tried highly elliptical orbit that will loop the telescope between the Earth and Moon every two weeks: "It's perfect timing that we'll be launching TESS to continue the great activity of looking for planets around stars other than our Sun and thinking about what it might mean for life in the universe," said Dr. Paul Hertz, Nasa's director of astrophysics.
TESS is about the size of a refrigerator and has four cameras to examine 200,000 stars that, being relatively close to the Sun, are among the brightest in the sky.

_________________
brian


Top
 Profile Send private message  
 
PostPosted: Wed Nov 21, 2018 5:56 pm 
Offline

Joined: Fri Dec 10, 2004 10:34 pm
Posts: 356
Location: Surrey
The first data from TESS should be available soon - the advantage over Kepler is that the stars are bright enough for other telescopes to get detailed spectra. The disadvantage is that only a very limited number of bright stars can be observed at a time as they are far apart. Kepler imaged a lot of stars for a long duration.

_________________
Engineer @ Work - Astronomer @ Play


Top
 Profile Send private message  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group