Student Project 1 - Star or Planet
Download FTS images for this lesson here.
Images contain Jupiter in a star field (Jupiter is the bright object that looks large - the reason for the large diameter is actually because all the light is overflowing or “blooming” across the CCD chip, similar to how water overflows in a filling ice-cube tray. All images were taken with cradle CCD,
approx 8 degree FOV.

You'll probably want to enhance the contrast before invoking the blink command, after loading the registered images (see below for an explanation of what a “registered image” is), so that more background stars appear for reference positions in the registered images. You do this by adjusting the slider bars at the far left side of the screen if you’re using FITSVIEW software to blink.

The image of 0322 has so much shift that registration/blink did not show the motion in the field, although extrapolation would show the motion.

Registered images mean that the picture is matched, star for star, in terms of position on the image, to the older image. This is done using AIP32 software, by opening both images and selecting the same two reference stars in each image. Then the computer shifts and rotates the second image so that the stars exactly overlay the positions on the first image. We have already done this for you, so that you can use FITSVIEW to blink the two images right away, as if we had been able to exactly line up the camera in the same place in the sky for both pictures, several days apart.

Inquiry Claim example: Planets move faster than stars.

Determine how much Jupiter moves or shifts over time (you can count pixels or approximate the angle across the sky). Examine the other objects for evidence of change of location.

Why would Jupiter do what it does in the images?

Assuming all objects (including Earth) are moving, why would the
stars appear to stay put relative to one another? (Hint: consider the relative distances!)


JUP0126 was taken 1-26-01, Eugene, 23:07:53, 3 second integration.
JUP0129 was taken 1-29-01, Bend, 20:24:49, 3 second integration.
JUP0207 was taken 2-7-01, Eugene, 20:00:21, 3 second integration.
JUP0322 was taken 3-22-01, Scio, 20:31:53, 2 second integration.
JUP2207r is the image of the 22nd of March registered to the image of Feb. 7th, using AIP software. Use this image to blink against image of the 7th.
JUP2607r is the image of the 7th registered to the image of the 26th, using AIP software. Use these registered images to blink against the image of the 26th.
JUP2629r is the image of the 29th registered to the image of the 26th, using AIP software.