Abstract.We have compiled a database of 4073 morphologically identified galaxies with radial velocity <3000 km s −1 and examined the alignments of the spin vectors of these galaxies in the Local Supercluster (LSC). Our aim is to test the morphological dependence of galaxy orientation. The "position angle -inclination" method is used to find the polar and azimuthal angles of the galaxy rotation axes. The spatial isotropic distribution is assumed to examine the non-random effects. We have carried out chi-square, Fourier, and auto correlation tests to examine non-random effects in the distributions of the polar and azimuthal angles of the galaxy rotation axes. We suspect that the orientations of galaxies in the LSC could be closely related to galactic morphology. The spiral galaxies exhibit anisotropy although not at a very high significance level. It is found that the spin vector orientations of the spiral galaxies in the LSC tend to lie perpendicular to the LSC plane. No preferred orientation is found in the spin vector orientations of barred spiral and irregular galaxies. The orientations of early-type and late-type spirals and barred spirals are discussed.

As a concluding paper in this series, we present an analysis of the spatial orientations of galaxies in seven Abell clusters of BM type II and compare the results with previous works. Four BM type II clusters (A1767, A1809, A2554, A2721) show a similar preferred alignment: spin vectors of galaxies tend to lie in the local supercluster plane and the projections of the spin vector tend to be oriented perpendicular with respect to the Virgo cluster centre. A preferred alignment of galaxies in cluster A2554 is noticed in both the two‐ and three‐dimensional analyses. In a comparison with previous work, we noticed a systematic change (with distance, radial velocity, morphology and magnitude) in the galaxy alignments from early‐type (BM I) to late‐type (BM III) clusters. Possible explanations of these systematic changes will be discussed.

Abstract.We present an analysis of the spatial orientations of 1231 galaxies in 8 Abell clusters of BM type I (type I in the Bautz-Morgan system). Our aim is to examine non-random effects in galaxy orientations in the clusters containing centrally located cD galaxies. We used the "position angle-inclination" method to find the polar and azimuthal angles of the galaxy rotation axes. To analyse the distribution of the polar and azimuthal angle of the galaxy rotation axes and to check for anisotropy or isotropy we have carried out three statistical tests: chi-square, Fourier, and auto correlation. We assumed a spatially isotropic distribution to examine non-random effects. It is found that the spin vector orientations of the galaxies in the clusters Abell 42, Abell 1775, Abell 3558 and Abell 3560 tend to lie parallel to the local supercluster plane. The spin vector projections of galaxies in the clusters Abell 42 and Abell 1775 tend to be oriented perpendicular to the Virgo cluster center whereas the clusters Abell 3558 and Abell 3562 tend to point towards the Virgo cluster center. No preferred orientation is noticed in the clusters Abell 401, Abell 2199 and Abell 3556.

Abstract.We present an analysis of the spatial orientations of 851 galaxies in 7 Abell clusters of BM type III (type III in the Bautz-Morgan system). Anisotropy is found in all 7 clusters. It is found that the spin vector orientations of the galaxies in the clusters of BM type III tend to be oriented both parallel (Abell 1412, Abell 2048 and Abell 4038) and perpendicular (Abell 2061, Abell 2065, Abell 2151 and Abell 2197) to the local supercluster plane. The spin vector projections of galaxies in 5 clusters (Abell 2061, Abell 2065, Abell 2151, Abell 2197 and Abell 4038) is found to be oriented perpendicular to the Virgo cluster center.