We have measured redshifts and Kron-Cousins R -band magnitudes for a sample of galaxies in the poor cluster AWM 7 .
We have measured redshifts for 172 galaxies ; 106 of these are cluster members .
We determine the luminosity function from a photometric survey of the central 1.2 h ^ { -1 } \times 1.2 h ^ { -1 } Mpc .
The LF has a bump at the bright end and a faint-end slope of \alpha = -1.37 \pm 0.16 , populated almost exclusively by absorption-line galaxies .
The cluster velocity dispersion is lower in the core ( \sim 530 km s ^ { -1 } ) than at the outskirts ( \sim 680 km s ^ { -1 } ) , consistent with the cooling flow seen in the X-ray .
The cold core extends \sim 150 h ^ { -1 } kpc from the cluster center .
The Kron-Cousins R -band mass-to-light ratio of the system is 650 \pm 170 h M _ { \odot } / L _ { \odot } , substantially lower than previous optical determinations , but consistent with most previous X-ray determinations .
We adopt H _ { 0 } = 100 h km { s } ^ { -1 } { Mpc } ^ { -1 } throughout this paper ; at the mean cluster redshift , ( 5247 \pm 76 km s ^ { -1 } ) , 1 h ^ { -1 } Mpc subtends 65 \farcm 5 .