Best Massive Star
Eta Carinae is an exceptionally large and volatile star located within the Carina Nebula. It’s notable for its dramatic past eruptions, including a significant outburst in the 1840s that reshaped its appearance. As a luminous blue variable, it exhibits intense fluctuations in brightness. Scientists...
P Cygni is a luminous blue variable star in the constellation Cygnus, estimated to lie several thousand light-years from Earth. It became visible to the naked eye during outbursts around 1600 and again in the mid-17th century, establishing it as one of the earliest recognized variable stars. Its spe...
Theta1 Orionis C is the most massive and luminous member of the Trapezium cluster, a group of young stars at the centre of the Orion Nebula (M42). The primary component is an O-type star with an estimated mass of approximately 40 solar masses and a surface temperature exceeding 39,000 kelvin. It is...
NGC 7635, designated as the Bubble Nebula, is an emission nebula situated in the constellation Cassiopeia. The structure consists of a spherical shell of gas created by the stellar wind of the massive central star, SAO 20575. The star's radiation ionizes the surrounding gas, causing it to glow. The...
The Pistol Star is a massive, highly luminous blue hypergiant star located near the center of the Milky Way galaxy within the Quintuplet Cluster. Hidden behind thick clouds of interstellar dust, it was first observed in detail by astronomers in the early 1990s using infrared imaging technology. The...
Gamma Velorum is a prominent multiple-star system located in the southern constellation of Vela, approximately 1,100 light-years from Earth. The primary component of the system is a spectroscopic binary consisting of a blue O-type giant and the closest and brightest Wolf-Rayet star known to Earth. T...
NML Cygni, also designated V1489 Cygni, is an extreme red hypergiant star located in the constellation of Cygnus. Estimated to have a radius exceeding 1,600 times that of the Sun, it ranks among the largest and most luminous stars ever discovered. The star is an M-type supergiant surrounded by a den...
AG Carinae is a luminous blue variable star in the southern constellation Carina, located thousands of light-years from Earth. It is an evolved, highly luminous massive star whose brightness and spectrum change as it undergoes unstable episodes of mass loss. The surrounding nebula consists of materi...
Stephenson 2-18 is a highly luminous red supergiant observed in the direction of the massive stellar cluster Stephenson 2 in the constellation Scutum. It is frequently described as a possible cluster member, although its distance, membership, temperature, and physical dimensions remain uncertain. Es...
WR 102 is a rare oxygen-sequence Wolf-Rayet star, classified WO2, in the constellation Sagittarius. Its spectrum is dominated by highly ionized oxygen, carbon, and helium produced in an extremely hot, dense stellar wind, and model estimates place its surface temperature above 200,000 kelvins. It is...
VV Cephei is an eclipsing binary system in the constellation Cepheus composed of a very large, cool M-type supergiant and a hotter B-type companion. The two stars orbit each other roughly every 20.3 years, and eclipses last many months because the supergiant has an enormous extended atmosphere. Mate...
The Peony Star, formally designated as WR 102ka, is a massive Wolf-Rayet star situated in close proximity to the center of the Milky Way galaxy. It is distinguished by its extreme luminosity, estimated to be approximately 3.2 million times that of the Sun, placing it among the most luminous stars cu...
HR 5171, also cataloged as V766 Centauri, is a yellow hypergiant star located in the constellation Centaurus. It is classified as one of the largest known stars in the observable universe by physical radius, measuring hundreds of times the size of the Sun. The system is scientifically notable for op...
LBV 1806-20 is a luminous blue variable star located near the center of the Milky Way galaxy. It resides in a dense star-forming cluster that also contains a soft gamma repeater, a type of highly magnetic neutron star. When identified, it was considered one of the most luminous stars known in the ga...
V354 Cephei is a red supergiant star located in the Milky Way galaxy within the northern constellation of Cepheus. Astronomical observations indicate that the star possesses a radius estimated to be roughly 1,500 times greater than that of the Sun, placing it among the largest known stars in the uni...
The Pistol Nebula is an emission nebula in the Milky Way near the Galactic Center, in the direction of the constellation Sagittarius. It surrounds the Pistol Star, an extremely luminous massive star whose intense radiation and stellar wind illuminate and shape material expelled during earlier erupti...
