The Double Cluster, also known as Caldwell 14, consists of the open clusters NGC 869 and NGC 884 (often designated h Persei and χ (chi) Persei, respectively), which are close together in the constellation Perseus.

NGC 869 (also known as h Persei) is an open cluster located around 7,460 light years away in the constellation of Perseus. [2] The cluster is around 14 million years old. [2] It is the west component of the Double Cluster with NGC 884. NGC 869 and 884 are often designated h and χ (chi) Persei, respectively.

The Double Cluster, or Caldwell 14, is the name for two open clusters – NGC 869 and NGC 884 – located close together in Perseus constellation. Also known as h Persei and χ Persei (h and Chi Persei), the clusters both lie at an approximate distance of 7,600 light years from Earth and are about 12.8 million years old.

2024年8月23日 · Visible to the naked eye from a dark location, Caldwell 14 is popularly known as the Double Cluster in Perseus. These two bright open clusters, also called NGC 869 and NGC 884, appear side by side, about halfway between the bright stars in the constellations Perseus and Cassiopeia.

NGC 869 是位於 英仙座 的一個 疏散星团，距離7,600 光年 [2]，年齡可能有1,300萬年 [2]，它和位於英仙座 OB1星協最西邊的疏散星團 NGC 884 合稱為 雙星團。 這兩個星團相距只有數百光年，在物理上有會相互影響。 喜帕恰斯 是最早記錄下這兩個星團的人，但很可能古人早就已經知道這兩個星團。 這個雙星團是業餘天文學家喜愛的目標，經常會使用小型望遠鏡觀察或拍攝。 它很容易找到，以裸眼就可以在 英仙座 和 仙后座 之間看見，在冬季的銀河中間就像是一個明亮的 …

The image is a color photograph taken with Kopernik's 8-inch F/1.5 Schmidt Camera. The field of view is about 5x7 degrees; about what can be seen thru 7x50 binoculars. The smaller version has the two open (or galactic) star clusters marked, along with the position of the more distant star cluster NGC 957.

NGC 869 and NGC 884 - The Double Cluster (h Chi Persei) The double clusters h and χ Persei, located in the constellation Perseus, are a stunning pair of open star clusters that have fascinated astronomers for centuries.

2023年10月3日 · NGC 869, the northern cluster, is about 6,800 light-years away from Earth, while NGC 884, the southern cluster, is approximately 7,500 light-years away. This intriguing separation highlights the optical illusion of their proximity and adds a …

2022年11月17日 · NGC 869 and NGC 884, also named Caldwell 14 or simply The Double Cluster, are two clusters in the constellation Perseus. Both are very similar to each other in size, magnitude, and age. This bright pair of clusters is a great astrophotography target for beginners.

2023年10月4日 · The Double Cluster is the name for two open clusters – NGC 869 and NGC 884 – located close together in Perseus constellation. Also known as h Persei and χ Persei, the clusters both lie at an approximate distance of 7,600 light years from Earth. With an apparent magnitude of 3.7/3.8, the Double Cluster is…