The ASAS 1-2 Systems
The prototype ASAS instrument, equipped with 768x512 Kodak CCD and 135/1.8 telephoto lens, and mounted on the computer controlled robotic mount, operated from 7 April 1997 until 6 June 2000. Prototype took about 15 3-minute exposures (covering 90 sq. deg.) per hour (over 120 per night) with limiting I-magnitude 13 and resolution of 14 arcsec/pixel. Initial setup consisted of 24 fields covering 150 sq. deg. (later increased to 50 fields - 300 sq. deg) monitored few times each night.
ASAS 2 results obtained during 1997-2000 available at the ASAS website contain:
- The ASAS-2 Photometric I-band Catalog - giving interactive access to over 50 million measurements of over 140,000 stars,
- Sky Atlas - graphic interface to the I-band Catalog,
- The ASAS-2 Catalog of Variable Stars containing over 350 Periodic and 3500 Miscellaneous variables,
- The ASAS Gallery presenting collection of the variables' light curves.
Read more about this topic: All Sky Automated Survey
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