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NGC 7293, commonly known as the Helix Nebula, is a large planetary nebula located in the constellation Aquarius. It is one of the closest planetary nebulae to Earth, offering astronomers a detailed view of the gas ejected from a central dying star. The nebula's distinctive eye-like appearance is cre...

The Vela SNR is a expanding cloud of gas and plasma created by a supernova that occurred approximately 11,000 years ago in the constellation Vela. It’s notable for containing the rapidly rotating Vela pulsar and represents a well-studied example of a pulsar wind nebula. Astronomers study this remnan...

V645 Centauri is an M-type red dwarf star located within the Alpha Centauri system, approximately 4.37 light-years from Earth. It’s notable for frequent flares—sudden bursts of energy—characteristic of many red dwarfs. This proximity makes it a subject of interest for astronomers studying stellar va...

Altair is a brilliant A-type main-sequence star located within the constellation Aquila. Situated just 17 light-years from Earth, it’s notable for its exceptionally fast rotation rate. This rapid spin causes a flattening of the star at its poles. Altair represents a key nearby star system and is par...

Barnard's Star is a red dwarf star situated approximately 6 light-years away in the constellation Ophiuchus. It holds the record for the highest proper motion of any known star relative to the Sun, moving across the sky at a noticeable rate. Because of its proximity and frequent observation by astro...

Orion Molecular Cloud 1 is a substantial molecular cloud situated in the Orion constellation. It’s notable as an active star-forming region containing the dense Kleinmann-Low core and the Trapezium cluster of young stars. This nearby nebula provides valuable insights into stellar birth processes and...

40 Eridani B is a white dwarf star located approximately 16 light-years from Earth, serving as a component of the 40 Eridani triple star system in the constellation of Eridanus. It was one of the first white dwarfs to be identified and analyzed, with astronomers in the early 20th century recognizing...

55 Cancri, also designated Rho1 Cancri or HD 75732, is a binary star system in the constellation Cancer located approximately 41 light-years from Earth. The primary star, 55 Cancri A, is a G8V main-sequence star comparable to but slightly smaller and cooler than the Sun, while the secondary, 55 Canc...

Epsilon Eridani is a K2V main-sequence star located approximately 10.5 light-years from the Sun in the constellation Eridanus, making it one of the nearest Sun-like stars. It is younger than the Sun, with age estimates ranging roughly from 400 million to 800 million years, and exhibits significant m...

Procyon B is a white dwarf star and the fainter component of the Procyon binary system in the constellation Canis Minor. It orbits Procyon A, an F-type main-sequence star that is among the brightest stars in the night sky. The companion's existence was first inferred from irregularities in Procyon A...

Alula Australis, designated Xi Ursae Majoris, is a multiple star system situated approximately 29 light-years from Earth in the northern constellation of Ursa Major. It historically holds significance as the first binary star system for which an orbital period was mathematically computed, achieved b...

GJ 876 (also catalogued as IL Aquarii) is a red dwarf star located approximately 15 light-years from Earth in the constellation Aquarius. It is one of the nearest known multi-planet systems, with at least four confirmed exoplanets, including gas giants and terrestrial-mass planets. The first planet...

NGC 7293, also known as the Helix Nebula, is a planetary nebula located in the constellation Aquarius. This relatively close object at approximately 650 light-years distance exhibits a distinctive sunflower-like structure formed by the expelled material of a dying star. The intricate rings and patte...

UV Ceti is a red dwarf star located approximately 8.7 light-years from Earth in the constellation Cetus, making it one of the closest known star systems to the Sun. It serves as the prototype for the UV Ceti class of variable flare stars, which are characterized by dramatic, sudden increases in lumi...

Teegarden's Star is an M-type red dwarf star situated approximately 12.5 light-years from the Solar System in the constellation Aries. Classified as an ultra-cool dwarf, it is exceptionally faint and was only discovered in 2003 despite its close proximity to Earth. In 2019, an astronomical team util...

Ross 128 is a red dwarf star located approximately 11 light-years from Earth in the constellation Virgo, making it one of the nearest stars to the Solar System. In 2017, astronomers using the HARPS spectrograph at the La Silla Observatory in Chile announced the discovery of Ross 128b, an Earth-mass...

Van Maanen's Star (van Maanen 2) is a white dwarf in the constellation Pisces, discovered by Dutch-American astronomer Adriaan van Maanen in 1917 from photographic plates. At approximately 14 light-years away, it is the closest known solitary white dwarf to the Sun, and among the closest white dwarf...

GJ 667 is a triple star system located approximately 23 light-years away in the constellation Scorpius. The primary components consist of two K-type main-sequence stars orbiting each other, while the third component, GJ 667C, is a distant red dwarf. The M-dwarf companion hosts several confirmed exop...

The Serpens Molecular Cloud is a nearby star-forming region in the Serpens Cauda constellation, notable for hosting highly active protostellar clusters like Serpens South.

18 Scorpii is a main-sequence G-type star in the constellation Scorpius, approximately 46 light-years from Earth. It is frequently classified as a solar twin because its temperature, luminosity, chemical composition, mass, and magnetic activity are broadly similar to those of the Sun. The star is ne...

Orion Molecular Cloud 2 (OMC-2) is a dense star-forming region located within the integral-shaped filament of the greater Orion A molecular cloud. Situated roughly 1,500 light-years from Earth, it is recognized by astronomers for hosting one of the richest and most densely packed clusters of protost...

L 98-59 is an M-type red dwarf star located approximately 35 light-years away in the southern constellation of Volans. It is known to host a multi-planetary system, with initial observations by NASA's Transiting Exoplanet Survey Satellite (TESS) in 2019 identifying three small, rocky exoplanets. Sub...

Luyten's Star is a nearby red dwarf situated roughly 12.5 light-years away from Earth in the constellation Canis Minor. Named after the astronomer Willem Jacob Luyten, it is a moderately active M-type star with roughly a quarter of the Sun's mass. In 2017, astronomers confirmed the presence of two e...

Lalande 21185 is a red dwarf star in the constellation Ursa Major, located approximately 8.3 light-years from Earth, making it one of the nearest known stellar neighbors to the Solar System. It is classified as spectral type M2V and has an apparent magnitude of about 7.5, rendering it too faint to b...

HD 219134 b is a rocky super-Earth exoplanet located approximately 21 light-years away in the constellation Cassiopeia. Discovered in 2015, it is notable for being one of the closest transiting exoplanets to our solar system, making it a valuable target for atmospheric study. The planet orbits its K...

GJ 1061 is a red dwarf star of spectral class M5.5V located approximately 12 light-years away from Earth in the southern constellation of Horologium. It is a relatively cool and dim star, possessing only a fraction of the Sun's mass and radius, which makes it invisible to the unaided human eye. Astr...

Teegarden's Star b is a potentially Earth-like exoplanet situated in the habitable zone of the ultra-cool red dwarf star Teegarden's Star. Located approximately 12.5 light-years away from Earth, it was discovered in 2019 by a team led by Mathias Zechmeister using the radial velocity method. The plan...

Delta Pavonis is a subgiant star located approximately 20 light-years away from Earth in the southern constellation of Pavo. Classified as a G8 IV star, it is considered a nearby solar analog, meaning it shares many physical characteristics with the Sun, though it is slightly more evolved. Its proxi...

Orion Molecular Cloud 3 (OMC-3) is a dense region within the Orion A molecular cloud complex, part of the integral-shaped filament extending through the constellation Orion. Located approximately 1,344 light-years from Earth, this star-forming region was extensively studied through 850-micron polari...