The Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. It was discovered by William Herschel in 1792. [2] .

The Crescent Nebula (NGC 6888) is a 25 light-year-wide emission nebula in the constellation Cygnus. This “cosmic bubble” in space owes its striking appearance to a central Wolf-Rayet star (WR 136) that pushes the hydrogen and oxygen atoms outward.

2024年9月13日 · Commonly called the Crescent Nebula, Caldwell 27 looks more like a prehistoric dinosaur egg. Hubble’s vibrantly colored image zooms in on a small region of the nebula that is “only” 3 light-years across, or about 17.6 trillion miles.

The Crescent Nebula is an emission nebula located in the constellation Cygnus, around 5,000 light years way from Earth. It has an apparent size of 18′ × 12′ and lies about 2.7 degrees southwest of Sadr, Gamma Cygni, the central star of the Northern Cross .

Explanation: NGC 6888, also known as the Crescent Nebula, is a about 25 light-years across blown by winds from its central, bright, massive star. A triumvirate of astroimagers ( Joe, Glenn, Russell) created this sharp portrait of the cosmic bubble.

The Crescent Nebula, or NGC 6888 as it is formally known, is a distinctive emission nebula that stretches about 25 lightyears across and is located about 5,000 lightyears away from Earth in the Cygnus constellation.

2024年1月1日 · One of the most striking summertime objects is the oddly shaped Crescent Nebula (NGC 6888) in Cygnus. William Herschel was first to spot it, back in September 1792. He described the sight as “a...

2023年12月15日 · NGC 6888 (also known as the Crescent Nebula, Caldwell 27, and Sharpless 105) is an emission nebula located in the constellation of Cygnus about 5000 light-years away from Earth.

2016年6月10日 · Explanation: NGC 6888, also known as the Crescent Nebula, is a cosmic bubble about 25 light-years across, blown by winds from its central, bright, massive star. This sharp telescopic portrait uses narrow band image data that isolates light from hydrogen and oxygen atoms in the wind-blown nebula.

The Crescent Nebula, also known as NGC 6888, lies about 4,700 light-years away in the constellation of Cygnus. Star WR 136 will probably undergo a supernova explosion sometime in the next million years.