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Proper motion of Barnard's Star

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#1 Joe F Gafford

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Posted 29 November 2020 - 01:45 AM

Proper motion of Barnard's Star. 10" and 18" Newtonian telescopes both F/4.5. Film (1987-1988) and CCD images (2003-2011), stacked show motion against the background  stars. I had an Image I took last year on this Forum and didn't find it. Another image of Barnard's Star from 2003 added. This was ignored due to a software glitch after an update to CCD Soft back then. Something to do with wrong pedestals and damaged darks. I had to use the last installment of CCD Soft to fix this. I had 4 second exposures of this object which was fine. The 4 second dark was damaged and had an odd offset. The latter 5 second dark was subtracted manually to the 4 second exposures using CCD soft. PI and Maxim wouldn't touch either even though some values were changed in the dark frame. Pixel math in both had an unsatisfactory result. I got a clean output with CCD Soft. 

 

https://flic.kr/p/2kbAuwG

 

Joe


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#2 Coconuts

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Posted 29 November 2020 - 07:16 AM

Remarkable imaging patience (and cool science history)!


Edited by Coconuts, 29 November 2020 - 07:17 AM.


#3 hobbyknipser

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Posted 29 November 2020 - 07:50 AM

Hi, Joe,

 

fine result!

regarding copyrights by Rick Johnson: would you be allowed to put some more data to your image?

 

https://images.mantr..._STAR/index.htm

 

cheers

Andreas


Edited by hobbyknipser, 29 November 2020 - 07:54 AM.


#4 lucam

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Posted 29 November 2020 - 08:25 AM

That's a great visualization and historical astronomy project. Thank you, Joe!

 

Luca



#5 Joe F Gafford

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Posted 29 November 2020 - 02:47 PM

Hi, Joe,

 

fine result!

regarding copyrights by Rick Johnson: would you be allowed to put some more data to your image?

 

https://images.mantr..._STAR/index.htm

 

cheers

Andreas

I would like to get some clear nights from Mar-Oct to get at least one day a month to pick up the parallax wobble. Others have done so. I got the simple Dr. Brian May wave front version with the New Horizons parallax from Wolf 359! 

 

Joe



#6 ryanha

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Posted 29 November 2020 - 03:36 PM

Well that is freaking cool.  I had to look up what this was, so for anyone else borderline too lazy to do that here is a link: link.

 

And here is a summary:

 

Its is 6 light years away and moving relative to us so its motion can (barely) be captured.  It moves at 103  arcsec/year so will travel a moon's width every 174 years.

 

Very cool image!  Thank you for sharing!

 

--Ryan




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