KPNO CCD Direct Imaging Options

Kitt Peak offers direct CCD imaging at 4 different telescopes. Each has its advantages. The table below summarizes the technical aspects of each configuration. For additional information, see the KPNO CCD Direct Imaging Manual.

Telescope+CCD Field Scale U B V R I Seeing
arcmin "/pix Limiting Magnitude
4m+Mosaic f/3.1 36 x 36 0.26 24.7 26.1 25.8 25.4 24.5 1.1
WIYN+MiniMo f/6.5 9.5 x 9.5 0.14 24.9 26.2 25.9 25.5 24.7 0.8
2.1m+T2KA f/7.5 10.4 x 10.4 0.305 23.8 25.1 25.0 24.7 23.8 1.1
0.9m+Mosaic f/7.5 59 x 59 0.43 23.0 24.5 24.2 23.8 22.9 1.4

This table includes typical limiting magnitudes obtained at each of telescopes. We define the magnitude limit as the magnitude for which a signal-to-noise ratio of 10 is achieved in 1 hour under dark sky (new moon) conditions, and under typical seeing (FWHM) conditions (last column).

Under different conditions, estimates can be calculated using the IRAF routine CCDTIME.


Telescope and Instrument questions may be sent directly to the appropriate KPNO Staff Contacts.