name ra dec
274-51913-230 159.815 -0.655
275-51910-275 161.051 0.152
275-51910-525 161.739 0.893
276-51909-19 164.090 -0.889
278-51900-39 168.470 0.004
278-51900-112 168.092 -0.255
Using The Sdss ImgCutout
At http://skyserver.sdss.org/ select Visual Tools/Image List
(Current direct link: http://skyserver.sdss.org/dr2/en/tools/chart/list.asp)
1) Cut and paste your list.
If you don't have a list of preferred objects you may use the Use query to fill form link on top of the Edit text box to create one.
For example the following query will bring you back 20 galaxies within 10 arcminutes of (258.145,64.071) in the Abell 2255 cluster.SELECT top 20 g.objID, g.ra, g.dec FROM fGetNearbyObjEq(258.145,64.071,10) n, Galaxy g WHERE n.objID = g.objID
2) Set a different zoom level if you wish.
3) Click on Get Image.
By clicking on the printer icon you will get the whole collection you are watching on the screen. If you want an individual bigger finding chart then:
- Clicking on each image, you will reach the navigator tool from where you can print bigger individual finding charts using the printer icon.
The Finding Chart tool:
If what you want is a bigger jpeg image or field of view then you need the Finding Chart tool.
To reach the Finding Chart tool:
1) From the Image List tool
- Go to the Explorer by clicking on the white letters on top of each stamp.
- In the Explorer, click on the image. The Finding Chart tool will open.
2) From the navigator
- Click on the Chart link on the top left menu.
3) In the Finding Chart tool:
- Set the size and zoom level you need. Check Grid|Label|Invert Image and print the image.
Note: Don't use the printer icon unless what you want is a 600 x 600 pixels.
Using other tools
What if the position you are looking for is not covered by SDSS?
You can use other services like the listed below. However, to the knowledge of the writer of this exercise, they don't provide the capability of entering a list of coordinates.
1) The Vo DataScope Data Inventory Service http://heasarc.gsfc.nasa.gov/vo/
You can either use the preview images they provide or download the fits images and use some fits displayer tool that allows you to mark objects.
2) Aladin Previewer http://aladin.u-strasbg.fr/AladinPreview
3) The STScI Digitized Sky Survey http://archive.stsci.edu/cgi-bin/dss_form
4) USNO Image and Catalog Archive http://www.nofs.navy.mil/data/FchPix/