http://skynet.unc.edu/

To use images already requested and imaged on Skynet, use this site and the passcodes Mrs Ramseyer gave you in class.

1. Click on "Observation Manager".
2. Enter your object in the green search area and "Search"
3. If a picture was taken, click on one of the hot-linked names under "Name"
4. Then click on "Preview" on the next page.
5. If you like it and it has enough filters, then "download processed" into "v" drive (at Niles West) or a flash drive.

Directions for Imaging with the Skynet Telescopes (we will need to wait for Yerkes to reopen)

1. Observation Manager
2. Add Observation
3. Lookup (Using a real astronomical name. Try “Catseye” then try NGC6543.)
4. Change Observing Name by adding your last name.
5. Choose filters based upon which telescope can see your DSO. (Look in Our Scopes for information)
6. Choose telescope
7. Set number of exposures and exposure time ( usually 2 exposures and try 40, 100 seconds)
8. Confirm

Use of AfterGlow

Once the images are returned and you would like to create a light curve with them use:

http://skynet.unc.edu/afterglow

First go to

Process - Align

Add files and WAIT

then My Images (This area matches what is currently in your Skynet account.)

then filter area type what image you are looking for NOT the color filter:)

select images (button on lower right...Use the shift button on the keypad or control to choose.))

then next.

A split screen is returned; an image screen and an align screen.

FIT the first of your images on the screen then

using the ALIGN screen that is open on the right make sure each image is visible and that

one star manual is selected.

Click on one bright star in the center of each images. The program will automatically advance to the next image. Click on this same star in every image until complete. (You will see a Red x.)

Choose Select Target Directory on the align screen. A new screen appears where you make a new folder, select the new folder and select. (This is at the bottom of the new folder screen!!!)

This new folder will appear under the Select Target Directory. Hit NEXT and you get a happy message. OK. Return to Afterglow screen.

Next

Process - Batch Photometry

load the folder (previously created in the work area) Select and NEXT.

A split screen is returned; an image screen and a batch photometry screen.

Using the batch photometry screen

select the variable star and 1-2 reference star in one of the images and name them on the batch photometry screen.

Click on Find Source in All Images.

Check to see if these stars were labeled on every image get a spreadsheet of data. NEXT

A Spreadsheet appears. To make a light curve you need to export - data analyzer - Variable Source

Two new screen appear (one is hidden behind the graph). List the variable and the reference and the magnitude of the reference star and check out your graph!