The Norma cluster is a very rich, massive nearby galaxy cluster lying at or close to the ‘core’ of the Great Attractor (GA). A carefully determined redshift-independent distance and peculiar velocity of this cluster, therefore, helps us clarify if the GA partakes in large-scale motions. We have thus determined the distance and peculiar velocity of the Norma cluster using the $K_s$-band isophotal Tully-Fisher relation. Using near-infrared $K_s$-band isophotal magnitudes and Hi line widths for 12 late-type galaxies, six of which lie within the Norma cluster, the measured distance of the Norma cluster is 4893 ± 329 km s⁻¹ ($d$ = 69.4 ± 4.7 Mpc). The corresponding peculiar velocity is +61± 329 km s⁻¹, which although with large uncertainty, is consistent with zero.

诺玛星团是一个非常丰富，巨大的附近星系星团，位于或靠近大吸引人（GA）的“核心”。因此，仔细确定该簇的与红移无关的距离和特殊速度有助于我们弄清楚GA是否参与大规模运动。因此，我们使用${ķ}_s$带等距Tully-Fisher关系。使用近红外${ķ}_s$12个晚型星系的全波段等视线幅值和Hi线宽，其中六个位于诺玛星团内，测得的诺玛星团距离为4893±329 km s ^-1（$d$= 69.4±4.7 Mpc）。相应的奇特速度为+ 61±329 km s ^-1，尽管具有较大的不确定性，但仍为零。