The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus. The common name comes from a drawing that somewhat resembled a crab with arms produced by William Parsons, 3rd Earl of Rosse, in 1842 or 1843 using a 36-inch (91 cm) telescope. [6]

2025年1月22日 · Peering deep into M1, this spectacular Hubble image captures the nebula’s beating heart: the rapidly spinning pulsar at its core. Bright wisps are moving outward from the pulsar (the rightmost of the two bright stars near the center of the image) at half the speed of light to form an expanding ring.

The Omega Nebula is an H II region in the constellation Sagittarius. It was discovered by Philippe Loys de Chéseaux in 1745. Charles Messier catalogued it in 1764. It is by some of the richest starfields of the Milky Way, figuring in the northern two-thirds of Sagittarius.

Messier 78 or M78, also known as NGC 2068, is a reflection nebula in the constellation Orion. It was discovered by Pierre Méchain in 1780 and included by Charles Messier in his catalog of comet -like objects that same year.

By Ðtting D/H measured in LL3 meteorites and comets or inferred in proto-Uranian and proto-Neptunian ices, we constrain the parameters of the model, namely, the initial accretion rate M0(0), the initial radius of the turbulent disk , and the a-coefficient of turbulent viscosity, and we Ðnd 2 ] 10~6 \ M0(0) \ RD 10~5 yr~1, 12.8 \ \ 39 AU, and 0.0...

Planetary Nebula Dying low-mass star ejects its outer layers of gas. As the star expands, and helium shell burning proceeds, a series of helium-shell flashes cause the star's radius to pulsate

2024年8月25日 · M17, also known as the Omega Nebula or Swan Nebula, is one of the largest star-forming regions in the Milky Way galaxy. Hubble’s stunning image of a central portion of the nebula has been colorized to highlight certain wavelengths of light. Green represents oxygen while red reveals hydrogen and infrared light.

2025年1月1日 · Its synchrotron radiation, generated by high-energy electrons spiraling in magnetic fields, makes the Crab Nebula a strong emitter across the radio to gamma-ray spectrum. At its core lies the Crab Pulsar, a rapidly spinning …

2024年9月5日 · 可以使用提供的工具——nebulagraph studio进行连接。 在任何一个PC端都可以对其进行连接。 因为studio版本需要与nebulagraph的版本适配，我下载的是nebulagraphDB3.8.0版本，因此需要下载最新版的studio。 （官网往下找到产品） 因此就是studio v3.10.0版本。 点击查看文档后也会有版本兼容的对比表格。 然后根据版本兼容去下载合适版本的studio ，下载后使用命令安装。 因为我使用的是 ubuntu 系统，因此下载的是deb的 安装包。 先成功启 …

2024年7月26日 · 资源摘要信息: "Nebula Graph是一个开源的图数据库系统，具有高可靠性、高性能和高可扩展性的特点。 它专门用于存储、处理和 查询 大规模的图形数据结构。