NGC 2539 is an open cluster in the constellation Puppis, located at the north edge of the constellation. It was discovered by William Herschel on January 31, 1785. It is a moderately rich cluster and with little central concentration, with Trumpler class II1m.

NGC 2539 is a Open Cluster in the Puppis constellation. NGC 2539 is situated close to the celestial equator and, as such, it is at least partly visible from both hemispheres in certain times of the year. Given its visual magnitude of 6.5, NGC 2539 is visible with the help of a small binocular.

NGC 2539，位于船尾座的疏散星团，于1785年由威廉·赫歇尔发现，距离地球约4400光年，核心半径约为6.5光年，潮汐半径约为50光年，约有3.72亿年的历史。图源：https://www.astrobin.com/322708/?q=NGC%202539。图片中左下的黄色亮星是19 Puppis，这是一颗视星等达4.72的前景恒星 ...

2025年2月19日 · Open cluster NGC-2539 - posted in Beginning Deep Sky Imaging: The next object I images was another open cluster in Puppis, NGC-2539. This RGB image is a stack of one hundred twenty 60-second subs acquired through red, green and blue filters.

Abstract: We present a detailed high-resolution spectroscopic analysis of 12 red giant stars, in single and binaries or multiples systems, classified as members of the intermediate-age (631 Myr) open cluster NGC 2539. We used FEROS echelle spectra and the standard LTE analysis to derive the atmospheric parameters for the stars and the abundance ...

2019年6月13日 · Abstract: The open clusters NGC 2323 and NGC 2539 have been analysed using CCD UBV(RI)KC photometric data, observed at the San Pedro Martir Observatory. Cluster memberships have been determined with the proper motion and parallax measures from the GaiaDR2 astrometric data release.

From Virginia Beach , NGC2539 is visible between 19:42 and 02:18. It will become accessible at around 19:42, when it rises to an altitude of 21° above your south-eastern horizon. It will reach its highest point in the sky at 23:00, 40° above your southern horizon.

NGC 2539是位于船尾座的一个疏散星团。

This cluster, NGC 2539 is an open cluster located in the constellation of Puppis. INGC 2539 roughly center in this image is estimated to be 4,000 light years distant. The bright star in the lower left is "19 Puppis" and is estimated to be only 185 light years distant - …

3 天之前 · NGC 2539 is an Open Galactic Cluster located in the constellation of Puppis in the southern hemisphere. NGC 2539 is called NGC 2539 in the New General Catalogue (NGC). This catalogue is a list of deep space objects compiled by John Louis Emil Dreyer in 1888 to update John Herschel's earlier work.