Abstract—Based on the archival images from the Hubble Space Telescope, we performed the photometry of the brightest galaxies of the Dorado group: NGC 1433, NGC 1533, NGC 1566, and NGC 1672. In the obtained CM-diagrams, red giants are specified, and distances to galaxies are measured by the TRGB method. The estimates obtained: 14.2 ± 1.2, 15.1 ± 0.9, 14.9 ± 1.0, and 15.9 ± 0.9 Mpc show that all the galaxies mentioned are located at approximately similar distances and form a scattered group with the average distance D = 15.0 Mpc. In the lenticular galaxy NGC 1533, it was found that blue and red supergiants form a ring structure at a distance of 3.6 kpc from the center, and are also visible in the hydrogen arm between the galaxy NGC 1533 and the dwarf IC 2038. High metallicity of these stars (Z = 0.02) indicates their origin from the gas of NGC 1533.

摘要—基于哈勃太空望远镜的存档图像，我们对多拉多组中最亮的星系进行了光度测定：NGC 1433，NGC 1533，NGC 1566和NGC1672。在获得的CM图中，指定了红色巨人，并通过TRGB方法测量到星系的距离。获得的估计数：14 。2±1 。2、15 。1±0 。9、14 。9±1 。0和15 。9±0 。9 Mpc表明，所有提及的星系都位于近似相似的距离，并形成了平均距离D = 15的分散星团。0 Mpc。在双凸透镜星系NGC 1533中，发现蓝色和红色超巨星在距中心3.6 kpc的距离处形成环形结构，并且在星系NGC 1533和矮化IC 2038之间的氢臂中也可见。这些分（ž = 0 。 02）表示从NGC 1533的气体的来源。