25 relations: Apparent magnitude, Astronomer, Brady Haran, Central Star, Centre de données astronomiques de Strasbourg, Charles Messier, Comet, Constellation, Dumbbell Nebula, Heber Doust Curtis, Kelvin, Light-year, List of Messier objects, List of planetary nebulae, Messier object, Minute and second of arc, Monthly Notices of the Royal Astronomical Society, New General Catalogue, Parsec, Perseus (constellation), Pierre Méchain, Planetary nebula, SIMBAD, The Astrophysical Journal, Vulpecula.
The apparent magnitude (m) of a celestial object is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere.
An astronomer is a scientist in the field of astronomy who studies stars, planets, moons, comets, and galaxies, as well as many other celestial objects.
Brady John Haran (born 18 June 1976) is an Australian independent film-maker and video journalist who is known for his educational videos and documentary films produced for BBC News and for his YouTube channels, such as Numberphile and Periodic Videos.
Central Star consists of four residential skyscrapers under construction in Busan, South Korea.
The Centre de données astronomiques de Strasbourg (CDS; English translation: Strasbourg Astronomical Data Center) is a data hub which collects and distributes astronomical information.
Charles Messier (26 June 1730 – 12 April 1817) was a French astronomer most notable for publishing an astronomical catalogue consisting of nebulae and star clusters that came to be known as the 110 "Messier objects".
A comet is an icy small Solar System body that, when passing close to the Sun, heats up and begins to outgas, displaying a visible atmosphere or coma, and sometimes also a tail.
New!!: Little Dumbbell Nebula and Comet ·
In modern astronomy, a constellation is a specific area of the celestial sphere as defined by the International Astronomical Union (IAU).
The Dumbbell Nebula (also known as Apple Core Nebula, Messier 27, M 27, or NGC 6853) is a planetary nebula in the constellation Vulpecula, at a distance of about 1,360 light years.
Heber Doust Curtis (June 27, 1872 – January 9, 1942) was an American astronomer.
The kelvin is a unit of measure for temperature based upon an absolute scale.
New!!: Little Dumbbell Nebula and Kelvin ·
A light-year (abbreviation: ly), sometimes written light year, is a unit of length used informally to express astronomical distances.
The Messier objects are a set of 110 astronomical objects catalogued by the French astronomer Charles Messier in his "Catalogue des Nébuleuses et des Amas d'Étoiles" ("Catalogue of Nebulae and Star Clusters").
The following is an incomplete list of known planetary nebulae.
The Messier objects are a set of over 100 astronomical objects first listed by French astronomer Charles Messier in 1771.
A minute of arc (MOA), arcminute (arcmin) or minute arc is a unit of angular measurement equal to one-sixtieth of one degree.
Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.
The New General Catalogue of Nebulae and Clusters of Stars (abbreviated as NGC) is a well-known catalogue of deep-sky objects in astronomy compiled by John Louis Emil Dreyer in 1888, as a new version of John Herschel's Catalogue of Nebulae and Clusters of Stars.
A parsec (symbol: pc) is a unit of length used to measure the astronomically large distances to objects outside the Solar System.
New!!: Little Dumbbell Nebula and Parsec ·
Perseus, named after the Greek mythological hero Perseus, is a constellation in the northern sky.
Pierre François André Méchain (16 August 1744 – 20 September 1804) was a French astronomer and surveyor who, with Charles Messier, was a major contributor to the early study of deep sky objects and comets.
A planetary nebula, often abbreviated as PN or plural PNe, is a kind of emission nebula consisting of an expanding glowing shell of ionized gas ejected from old red giant stars late in their lives.
SIMBAD (the Set of Identifications, Measurements, and Bibliography for Astronomical Data) is an astronomical database of objects beyond the Solar System.
New!!: Little Dumbbell Nebula and SIMBAD ·
The Astrophysical Journal, often abbreviated ApJ (pronounced "ap jay") in references and speech, is a peer-reviewed scientific journal of astrophysics, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler.
Vulpecula is a faint constellation in the northern sky.
New!!: Little Dumbbell Nebula and Vulpecula ·