NGC 147 (also known as DDO3 or Caldwell 17) is a dwarf spheroidal galaxy about 2.58 Mly away in the constellation Cassiopeia. NGC 147 is a member of the Local group of galaxies and a …

NGC 147 （也稱為 DDO 3 、 科德韋爾 17）是 仙后座 的一個 矮橢球星系。 星等 為9.4， 赤經 為33分11.7秒， 赤緯 為48°30'26"。 1829年9月8日， 約翰·弗里德里希·威廉·赫歇爾 發現NGC …

2024年8月23日 · Caldwell 17, also known as NGC 147, is a dwarf galaxy located roughly 2.5 million light-years from Earth. It is a member of the Local Group of galaxies, which is …

2025年2月10日 · NGC 147 （也称为 DDO 3 、 科德韦尔 17）是 仙后座 的一个 矮椭球星系。 星等 为9.4， 赤经 为33分11.7秒， 赤纬 为48°30'26"。 1829年9月8日， 约翰·弗里德里希·威廉· …

NGC 147是 仙女座星系 最暗弱的 伴星系，也是 本星系群 众多 矮星系 中的一员，位于 仙后座。 NGC147 含有少量的 球状星团，但没有探测到气体、尘埃和年轻恒星。 尽管鲜有证据表明近期 …

NGC 147 is a Elliptical Galaxy in the Cassiopeia constellation. NGC 147 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere. Given its …

The galaxies NGC 147 and NGC 185 are located in the outskirts of the constellation Cassiopeia. Best observing time is in the months January to December, when this circumpolar …

2024年1月1日 · Like the Andromeda Galaxy, both NGC 147 and NGC 185 are on trajectories to merge with the Milky Way. The latter is the faster of the two, drawing closer at a rate of …

NGC 147 is a Galaxy in a Group of Galaxies located in the constellation of Cassiopeia in the northern hemisphere. NGC 147's distance from Earth is 2,449,434.40 light years. NGC 147 is …

2021年11月4日 · NGC 147 and NGC 185 have been identified as binary galaxies, forming a gravitationally stable binary system. But recently discovered faint dwarf galaxy Cassiopeia II …