existing samples are far from complete.

To rectify this situation, we have started a search program for long period variables in Galactic Globular clusters (Lebzelter et al. [@lebz04]). The relatively large number of already known or proposed long period variables in 47Tuc made it a good starting point. Here, we present the results for 47Tuc (NGC 104), the first cluster analyzed. We adopt the following properties for 47 Tuc: $(m-M)_{V}$=13.5$\pm$0.08 (Gratton et al. [@gratton03]); metallicity \[Fe/H\]$=$$-$0.66 (Carretta & Gratton [@cg97]); interstellar reddening $E(B-V)$$=$0.024; an age of 11.2$\pm$1.1Gyr (Gratton et al.[@gratton03]); and a turnoff mass between 0.86 and 0.9$M_{\sun}$. In a recent paper discussing radial velocity variations in known LPVs in 47 Tuc (Lebzelter et al.[@LWHJF05]) we gave more discussion of the properties of 47 Tuc and its variables and we refer the reader to that paper for details.

Observations
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Mount Stromlo data
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Our monitoring program of 47Tuc started in August 2002 at the 50inch telescope at Mount Stromlo. This telescope was equipped with a two channel camera used earlier for the MACHO experiment (Alcock et al.[@macho92]). The camera obtained two images in two broad band ranges at the same time (Marshall [@macho94]). These passbands did not correspond to 