[Lex Computer & Tech Group/LCTG] where is Webb

[Carl Lazarus]

Is Earth’s shadow large enough to completely block the sun from the James Webb telescope?  I thought the telescope has an elaborate sun shield.

-- Carl

 

From: LCTG <lctg-bounces+carllazarus=comcast.net at lists.toku.us> On Behalf Of George Gamota
Sent: Tuesday, December 28, 2021 3:41 PM
To: 'Stephen Quatrano' <stefanoq at gmail.com>; jjrudy1 at comcast.net
Cc: 'Lex Computer Group' <lctg at lists.toku.us>
Subject: Re: [Lex Computer & Tech Group/LCTG] where is Webb

 

Basically the Webb would be fried (electronics burned) if it ever sees the sun. So L2 places it in such a way that the Earth blocks the sun (an eclipse) all the time. Thus the Webb goes around the sun with Earth. Webb’s orbit then is one year just as the Earth.

George.

 

From: LCTG <lctg-bounces+ggamota=stma-llc.com at lists.toku.us <mailto:lctg-bounces+ggamota=stma-llc.com at lists.toku.us> > On Behalf Of Stephen Quatrano
Sent: Tuesday, December 28, 2021 1:08 PM
To: jjrudy1 at comcast.net <mailto:jjrudy1 at comcast.net> 
Cc: Lex Computer Group <lctg at lists.toku.us <mailto:lctg at lists.toku.us> >
Subject: Re: [Lex Computer & Tech Group/LCTG] where is Webb

 

Great graphics, John.  I didn’t understand L2 orbit so I Googled it:

 

"The space telescope is destined to orbit a point in space known as Earth-sun Lagrange point 2 or L2, which is located nearly 1 million miles (1.5 million kilometers) away from Earth on the opposite side as the sun. The spacecraft covered the first 10% of that journey within 12 hours of launching.”  https://www.space.com/james-webb-space-telescope-trajectory-burn

 

"The James Webb Space Telescope will not orbit the Earth like Hubble but will in fact orbit the Sun. It will travel for approximately 30 days before reaching what is known as the second Lagrange point, or L2, 1 million miles away.” https://deepfieldfilm.com/discover/james-webbs-halo-orbit

 

Looking at the second animation, I’m still not sure I understand it… but I keep trying.

 

Regards,

 

Stephen Quatrano
CEO and Cofounder | Meema, Inc
web: http://meemastories.com
email: <mailto:stephen.quatrano at meemastories.com>  stephen.quatrano at meemastories.com
cell: +1 781-266-8799
https://www.linkedin.com/in/quatrano/

Board Member | The Right Question Institute
http://www.rightquestion.org

Lifelong Learner
http://www.howdoweknow.info/p/home.html
http://stefano.quatrano.us/

 

On Dec 28, 2021, at 12:35 PM, <jjrudy1 at comcast.net <mailto:jjrudy1 at comcast.net> > <jjrudy1 at comcast.net <mailto:jjrudy1 at comcast.net> > wrote:

 

This is a nice NASA site that shows its location in realtime  <https://www.jwst.nasa.gov/content/webbLaunch/whereIsWebb.html> https://www.jwst.nasa.gov/content/webbLaunch/whereIsWebb.html

 

John Rudy

 

781-861-0402

781-718-8334  cell

13 Hawthorne Lane

Bedford MA

 <mailto:jjrudy1 at comcast.net> jjrudy1 at comcast.net

<image001.png>

 

===============================================
::The Lexington Computer and Technology Group Mailing List::
Reply goes to sender only; Reply All to send to list.
Send to the list:  <mailto:LCTG at lists.toku.us> LCTG at lists.toku.us      Message archives:  <http://lists.toku.us/private.cgi/lctg-toku.us> http://lists.toku.us/private.cgi/lctg-toku.us
To subscribe: email  <mailto:lctg-subscribe at toku.us> lctg-subscribe at toku.us  To unsubscribe: email  <mailto:lctg-unsubscribe at toku.us> lctg-unsubscribe at toku.us
Future and Past meeting information:  <http://lctg.toku.us/> http://LCTG.toku.us
List information:  <http://lists.toku.us/listinfo.cgi/lctg-toku.us> http://lists.toku.us/listinfo.cgi/lctg-toku.us
This message was sent to  <mailto:stefanoq at gmail.com> stefanoq at gmail.com.
Set your list options:  <http://lists.toku.us/options.cgi/lctg-toku.us/stefanoq@gmail.com> http://lists.toku.us/options.cgi/lctg-toku.us/stefanoq@gmail.com

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.toku.us/pipermail/lctg-toku.us/attachments/20211228/62f4e25e/attachment.html>