Bibcode
Costero, R.; Echevarria, J.; Tapia, M.
Bibliographical reference
American Astronomical Society, 188th AAS Meeting, #54.01; Bulletin of the American Astronomical Society, Vol. 28, p.904
Advertised on:
5
1996
Citations
1
Refereed citations
1
Description
Measurements on the local seeing have been carried out during two and a
half yea rs (March 29, 1992 to October 7, 1994), over a total of 378
nights. The Site Tes ting Telescope (STT) from the Steward Observatory
yields a median seeing of 0.61 arcsec and a first quartile of 0.50
arcsec. Additional measurements with the Carnegie Monitor (CM), many of
them done simultaneously with the STT, yield almost identical results.
The Micro--Thermal Array (MTA), also from Steward Observatory, show that
the seeing size decreases about 0.1 arcsec at 15 meters above the
ground. The seeing does not show any dependence on wind velocity or
direction, at least for wind velocities smaller than 40 kilometers per
hour. We will present the details of these results. The participation of
several persons in this project is here acknowledge, especially that of
R. Cromwell and N. Wolf, from Steward Observatory, and S.E. Persson and
D.M. Carr, from The Observatories of the Carnegie Institution of
Washington.