Huge circle thing on AIA 211

Originally posted by Manhater
reply to post by Mianeye

 

That big? No way...

The Solar Dynamics Observatory (SDO) spacecraft that took the image is located in Earth's orbit. Therefore, the Moon would appear to be (roughly) about as big as seen from the SDO spacecraft as the Moon looks from our vantage point here on Earth -- and from our vantage point on Earth, the moon appears to be as large as the Sun.

So "yes way". The Moon can look that big from the SDO.

Originally posted by Manhater
reply to post by Mianeye

 

I just noticed something. That picture is from 2011 and the guy posted that in 2012. So how was he able to get a movie of it on helioviewer 42 minutes ago?

You know, Manhater, as much as you use helioviewer, youd think you would understand how to use helioviewer and the tools available on it.

Originally posted by Gridrebel
Interesting to see light reflecting off the moving black disc/circle object. Too bad we can't see any other details on the moving disc.

ETA, if it were an eclipse, how does it return on the same trajectory path in the video. Did someone push rewind?

edit on 16-6-2012 by Gridrebel because: (no reason given)

It's not exactly the same.

Originally posted by smurfy

Originally posted by Gridrebel
Interesting to see light reflecting off the moving black disc/circle object. Too bad we can't see any other details on the moving disc.

ETA, if it were an eclipse, how does it return on the same trajectory path in the video. Did someone push rewind?

edit on 16-6-2012 by Gridrebel because: (no reason given)

It's not exactly the same.

Plus, it's not just the motion pf the moon causing the transit. The SDO is moving also. And as smurfy sid, if you actually watch it closely, you can see that the Sun looks different as the moon moves "down" than it does when the moon moves back "up". The return track of the moon obviously isn't the movie put on "rewind".

Inthis article about the transit, there is a link to the Helioviewer website for the time and date of the transit. You can set the viewer to "step through" images taken -- say -- 5 minutes apart and you can see how different the prominences on the Sun look when the Moon is appearing to head heading downward than they do when the moon appears to head back again:
blog.helioviewer.org...

Originally posted by Manhater
reply to post by Mianeye

 

That big? No way...

remember, the moon is much closer to us than the sun is, so it's going to look much larger even though it isn't