here is a rough ID of the area with an image I found of
Proxima's path over the years, overlaid.
My image is a close crop of my July set.
This is a tiny piece of sky!
This shows 12 months of Proxima's proper motion.
Compare it to the yearly wobble image from post 21 to see exactly where
a January result would be in this wobble.
Great project and result Steve now keep at if for a few years and pass the technique down through your family for a few generations.... and give us colour
In the words of the great Gelileo Galilei Eppur Si Move "And yet it moves" (or at least he is said to have said but probably didn't)
Nice work Steve, Interesting the looping action in the diagrams, obviousely the angular view of earths orbit, which not only shows speeding up & slowing down, but also the Tilt of earths orbit in relation. a good star to work with being the closest to us.
Well done on such an interesting project
Thank you guys.
It is quite hard to make yourself believe this really is a star, a true star,
moving against the background of all of those other stars, not moving at
all...in a whole year.
Some perspective can really humble you sometimes.....
Proxima according to Wiki moves about 3775 milliarcsec/ yr in RA
and 769 mas/yr in Dec.
That's by no means the largest proper motion of a star.
Barnard's star is one of the fastest moving. 10,300 mas/ yr!
There is also motion due to our movement contributing to the picture,
mainly the cyclic wobble.
My DSI CCD at this image scale is approx 11 x 14 arc mins in scale and
approx 1.14 arc sec per pixel.
I made a comparison over a three year period April 2010 to Aug 2013. See attached gif.
On the slide I have noted the proper motion. I scaled the actual motion off the image and it matched the prediction.
Fantastic to see the detail in your Project Steve. Well done.
Rgds.
Terry
Last edited by AstroTourist; 10-02-2014 at 01:29 AM.
Reason: typo
Thanks Trev and Terry and the regulars who keep checking in
for progress.
March has been a bit difficult to get a set that wasn't affected by
moon, cloud or bad seeing...or all three !
attached is an animation from Jan 2013 to March 2014.
A 2nd yearly cyclic curve is now evident.
