Examples for image extraction

RA is the astronomical equivalent of longitude, and ranges from 0 hours to 24 hours. RA is further subdivided into minutes and seconds, so that an RA of 01 20 45 equates to 1 hour, 20 minutes and 45 seconds.

Dec is the astronomical equivalent of latitude, and ranges from -90 to + 90 degrees. Again Dec is further subdivided into minutes and seconds, so that a Dec of -17 20 45 equates to -17 degrees, 20 minutes and 45 seconds.

Enter the RA and Dec together in the box provided on the form i.e as
01 20 45 -17 20 45

Currently the whole of the southern sky in UKST B and R is available on line, you should get images returned if you select either of these surveys and input RAs between 0-24 hours and Decs between -90 and +2.5.

Listed below are the coordinates of some interesting objects you might like to try extracting:

Name            RA and Dec         Size      Description
              (equinox J2000)    (arcmin)

Helix       22 29 39.0 -20 49 56    15     Planetary Nebula
NGC1365     03 33 36.4 -36 08 25    15     Galaxy in Fornax
NGC300      00 54 53.6 -37 40 59    15     Large spiral galaxy
Cartwheel   00 37 41.8 -33 42 59     5     Galaxy, after interaction
Abell 140   01 04 38.0 -23 59 06    15     Cluster of galaxies
Abell 2670  23 54 10.0 -10 24 18    15     Cluster of galaxies 
Comet Lovas 23 50 21.2 -17 45 40     5     Comet to left of galaxy
                                           (comet only on UKST blue)