Observations in June-July 2003

Better conditions prevailed on the nights of 2003 June 27 to July 4, with the seeing better than $1$ $as$ most of the time and occasionally as good as $0.4$ $as$. Observational results from data taken of M13 on 2003 June 29 will be presented in this chapter. The $780$ $nm$ edge filter was used for this run of $8000$ frames, each of $552\times104$ pixels. A substantial amount of other data from a wide range of targets exists from the observations in June-July 2003, and for reference these are listed in Appendix B.

The square pixels of the CCD87 array used in 2003 allowed larger areas of the sky to be observed without compromising the frame rate or pixel sampling used for the observations. The observations presented here from 2003 were taken through a $780$ $nm$ long-pass filter, with the long wavelength cut-off for the bandpass determined by the sensitivity curve for the CCD87 detector (see Figure 5.5).