NGC 2477 is a stunning cluster, almost as extensive in the sky as the full moon. It has been called "one of the top open clusters in the sky", [1] like a highly resolved globular cluster without the dense center characteristic of globular clusters.

ngc 2477是在星座 船尾座的一個疏散星團，天球座標為赤經7時52.3分，赤緯-38度33分，亮度约5.8視星等，距地球3,600光年。 大約包含300顆恆星 [ 3 ] ，於1751年由 拉卡伊 發現 [ 3 ] 。

2024年8月23日 · Caldwell 71, or NGC 2477, is an open star cluster. Open clusters are loosely bound collections of stars. However, Caldwell 71 is relatively compact and strikingly spherical, so it is easily mistaken for a globular cluster. It is located roughly 4,000 light-years from Earth in the constellation Puppis.

NGC 2477是一个位于 船尾座 的 疏散星团， 天球 座标为 赤经 7时52.3分， 赤纬 -38度33分，视觉观测大小约27 角分，亮度约5.8 视星等，距地球4200 光年。 NGC 2451包含约300颗星，年龄约为七亿年，是一个比较年轻的星团。 因为所含的恒星很多，用双筒镜看似 球状星团。 用小型望远镜可以辨识个别的恒星。 NGC 2451在 1751年 被法国天文学家 尼可拉·路易·拉卡伊 （Abbe Lacaille）首次纪录在星表中，但是未见记载于 夏尔·梅西耶 的天体列表和 威廉·赫歇尔 的 深 …

The open cluster NGC 2477 is located in the constellation Puppis. Best time for observation is around November to February. At a declination of -38° the is raises only 4° above the southern horizon as seen from Switzerland. The more south you go, the better it can be seen.

2023年8月9日 · C71 (NGC 2477) Caldwell 71 is an open cluster, a loosely bound collections of stars. However, it is relatively compact and strikingly spherical, so it is easily mistaken for a globular cluster. The loose open cluster NGC 2451 appears near it, and both clusters can fit in the same field of view with binoculars or a low-power telescope.

2024年4月10日 · NGC 2477, also known as Caldwell 71, is an open cluster located in the constellation of Puppis. This celestial treasure, discovered by Abbé Lacaille in 1751, is home to approximately 300 stars and spans almost as extensively across the sky as the full moon.

NGC 2477 is the open cluster at left. It consists of about 300 stars located much further away, at 4000 light years away in the southern constellation of Puppis. The cluster is 30 arc-minutes wide, corresponding to a diameter of about 36 light years. This …

2023年11月6日 · The brightest star of NGC 2477 is of mag 9.81, the hottest of spectral type B8. The cluster’s age has been estimated at about 700 million years (Sky Catalog 2000). Astronomical League’s Southern Sky Binocular Club list.

NGC 2477 is a stunning open cluster located in the Milky Way rich constellation of Puppis. It's arguably the constellation's finest cluster, which also contains other superb examples such as M46, M47 and M93.