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69 relations: Alicante 8, Alpha Herculis, Antares, Astrophysical maser, Asymptotic giant branch, Betelgeuse, Bright giant, Calcium triplet, Carbon, CNO cycle, Cyanogen, Double Cluster, Epsilon Pegasi, Giant star, Hodge 301, Horizontal branch, HR 5171, Hypergiant, Instability strip, Irregular variable, Kelvin, KW Sagittarii, KY Cygni, Magnitude (astronomy), Main sequence, Mass, Metallicity, Mu Cephei, Neon, NGC 7419, Nitrogen, Opacity (optics), Orion OB1 Association, Oxygen, Perseus, Psi1 Aurigae, PZ Cassiopeiae, Roman numerals, RSGC1, RSGC3, RV Tauri variable, S Persei, Scorpius–Centaurus Association, Scutum–Centaurus Arm, Semiregular variable star, Slow irregular variable, Star, Star cluster, Stellar classification, Stellar wind, ..., Stephenson 2, Subgiant, Sun, Supergiant star, Supernova, Surface gravity, Tarantula Nebula, Type II supernova, V354 Cephei, Variable star, Very Long Baseline Array, Very-long-baseline interferometry, Volume, VV Cephei, VX Sagittarii, Wolf–Rayet star, Yellow hypergiant, Zeta Cephei, 119 Tauri. Expand index (19 more) »
Alicante 8
Alicante 8, also known as RSGC4, is a young massive open cluster belonging to the Milky Way galaxy.
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Alpha Herculis
No description.
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Antares
Antares, also designated Alpha Scorpii (α Scorpii, abbreviated Alpha Sco, α Sco), is on average the fifteenth-brightest star in the night sky, and the brightest star in the constellation of Scorpius.
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Astrophysical maser
An astrophysical maser is a naturally occurring source of stimulated spectral line emission, typically in the microwave portion of the electromagnetic spectrum.
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Asymptotic giant branch
The asymptotic giant branch (AGB) is a region of the Hertzsprung–Russell diagram populated by evolved cool luminous stars.
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Betelgeuse
Betelgeuse, also designated Alpha Orionis (α Orionis, abbreviated Alpha Ori, α Ori), is the ninth-brightest star in the night sky and second-brightest in the constellation of Orion.
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Bright giant
The luminosity class II in the Yerkes spectral classification is given to bright giants.
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Calcium triplet
The infrared Ca II triplet, commonly known as the Calcium triplet, is a triplet of three ionised calcium spectral lines at the wavelength of 8498 Å, 8542 Å and 8662 Å.
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Carbon
Carbon (from carbo "coal") is a chemical element with symbol C and atomic number 6.
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CNO cycle
The CNO cycle (for carbon–nitrogen–oxygen) is one of the two known sets of fusion reactions by which stars convert hydrogen to helium, the other being the proton–proton chain reaction.
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Cyanogen
Cyanogen is the chemical compound with the formula (CN)2.
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Double Cluster
The Double Cluster (also known as Caldwell 14) is the common name for the open clusters NGC 869 and NGC 884 (often designated h Persei and χ Persei, respectively), which are close together in the constellation Perseus.
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Epsilon Pegasi
Epsilon Pegasi (ε Pegasi, abbreviated Epsilon Peg, ε Peg), also named Enif (EE-nif), is the brightest star in the northern constellation of Pegasus.
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Giant star
A giant star is a star with substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature.
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Hodge 301
Hodge 301 is a star cluster in the Tarantula Nebula, visible from Earth's Southern Hemisphere.
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Horizontal branch
The horizontal branch (HB) is a stage of stellar evolution that immediately follows the red giant branch in stars whose masses are similar to the Sun's.
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HR 5171
HR 5171, also known as V766 Centauri, is a triple star system in the constellation Centaurus, around 12,000 light years from Earth.
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Hypergiant
A hypergiant (luminosity class 0 or Ia+) is among the very rare kinds of stars that typically show tremendous luminosities and very high rates of mass loss by stellar winds.
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Instability strip
The unqualified term instability strip usually refers to a region of the Hertzsprung–Russell diagram largely occupied by several related classes of pulsating variable stars: Delta Scuti variables, SX Phoenicis variables, and rapidly oscillating Ap stars (roAps) near the main sequence; RR Lyrae variables where it intersects the horizontal branch; and the Cepheid variables where it crosses the supergiants.
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Irregular variable
An irregular variable is a type of variable star in which variations in brightness show no regular periodicity.
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Kelvin
The Kelvin scale is an absolute thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics.
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KW Sagittarii
KW Sagittarii is a red supergiant, located approximately 2,400 parsecs away from our Sun in the direction of the constellation Sagittarius.
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KY Cygni
KY Cygni is a red supergiant of spectral class M3.5Ia located in the constellation Cygnus.
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Magnitude (astronomy)
In astronomy, magnitude is a logarithmic measure of the brightness of an object in a defined passband, often in the visible or infrared spectrum, but sometimes across all wavelengths.
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Main sequence
In astronomy, the main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness.
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Mass
Mass is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied.
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Metallicity
In astronomy, metallicity is used to describe the abundance of elements present in an object that are heavier than hydrogen or helium.
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Mu Cephei
Mu Cephei (μ Cep, μ Cephei), also known as Herschel's Garnet Star, is a red supergiant star in the constellation Cepheus.
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Neon
Neon is a chemical element with symbol Ne and atomic number 10.
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NGC 7419
NGC 7419 is an open cluster in the constellation Cepheus.
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Nitrogen
Nitrogen is a chemical element with symbol N and atomic number 7.
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Opacity (optics)
Opacity is the measure of impenetrability to electromagnetic or other kinds of radiation, especially visible light.
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Orion OB1 Association
The Orion OB1 stellar association is a contingent group of several dozen hot giant stars of spectral types O and B. Associated are thousands of lower-mass stars, and a (smaller but significant) number of protostars.
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Oxygen
Oxygen is a chemical element with symbol O and atomic number 8.
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Perseus
In Greek mythology, Perseus (Περσεύς) is the legendary founder of Mycenae and of the Perseid dynasty, who, alongside Cadmus and Bellerophon, was the greatest Greek hero and slayer of monsters before the days of Heracles.
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Psi1 Aurigae
Psi1 Aurigae (ψ1 Aur, ψ1 Aurigae) is the Bayer designation for a star in the northern constellation of Auriga.
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PZ Cassiopeiae
PZ Cassiopeiae is a red supergiant star located in the Cassiopeia constellation, and a semi-regular variable star.
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Roman numerals
The numeric system represented by Roman numerals originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages.
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RSGC1
RSGC1 (Red Supergiant Cluster 1) is a young massive open cluster belonging to the Milky Way galaxy.
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RSGC3
RSGC3 is a young massive open cluster belonging to the Milky Way galaxy.
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RV Tauri variable
RV Tauri variables are luminous variable stars that have distinctive light variations with alternating deep and shallow minima.
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S Persei
S Persei is a red supergiant located near the Double Cluster in Perseus, north of the cluster NGC 869.
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Scorpius–Centaurus Association
The Scorpius–Centaurus Association (sometimes called Sco–Cen or Sco OB2) is the nearest OB association to the Sun.
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Scutum–Centaurus Arm
The Scutum–Centaurus Arm, also known as Scutum-Crux arm, is a long, diffuse curving streamer of stars, gas and dust that spirals outward from the proximate end of the Milky Way's central bar.
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Semiregular variable star
Semiregular variable stars are giants or supergiants of intermediate and late spectral type showing considerable periodicity in their light changes, accompanied or sometimes interrupted by various irregularities.
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Slow irregular variable
A slow irregular variable (ascribed the GCVS types L, LB and LC) is a variable star that exhibit no or very poorly defined periodicity in their slowly changing light emissions.
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Star
A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
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Star cluster
Star clusters are groups of stars.
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Stellar classification
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
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Stellar wind
A stellar wind is a flow of gas ejected from the upper atmosphere of a star.
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Stephenson 2
Stephenson 2 also known as RSGC2 is a young massive open cluster belonging to the Milky Way galaxy.
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Subgiant
A subgiant is a star that is brighter than a normal main-sequence star of the same spectral class, but not as bright as true giant stars.
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Sun
The Sun is the star at the center of the Solar System.
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Supergiant star
Supergiants are among the most massive and most luminous stars.
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Supernova
A supernova (plural: supernovae or supernovas, abbreviations: SN and SNe) is a transient astronomical event that occurs during the last stellar evolutionary stages of a star's life, either a massive star or a white dwarf, whose destruction is marked by one final, titanic explosion.
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Surface gravity
The surface gravity, g, of an astronomical or other object is the gravitational acceleration experienced at its surface.
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Tarantula Nebula
The Tarantula Nebula (also known as 30 Doradus) is an H II region in the Large Magellanic Cloud (LMC).
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Type II supernova
A Type II supernova (plural: supernovae or supernovas) results from the rapid collapse and violent explosion of a massive star.
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V354 Cephei
V354 Cephei is a red supergiant star located within the Milky Way.
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Variable star
A variable star is a star whose brightness as seen from Earth (its apparent magnitude) fluctuates.
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Very Long Baseline Array
The Very Long Baseline Array (VLBA) is a system of ten radio telescopes which are operated remotely from their Array Operations Center located in Socorro, New Mexico, as a part of the (LBO).
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Very-long-baseline interferometry
Very-long-baseline interferometry (VLBI) is a type of astronomical interferometry used in radio astronomy.
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Volume
Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance (solid, liquid, gas, or plasma) or shape occupies or contains.
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VV Cephei
VV Cephei, also known as HD 208816, is an eclipsing binary star system located in the constellation Cepheus, approximately 5,000 light years from Earth.
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VX Sagittarii
VX Sagittarii is a red supergiant or red hypergiant located more than 1.5 kiloparsec away from the Sun in the constellation of Sagittarius.
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Wolf–Rayet star
Wolf–Rayet stars, often abbreviated as WR stars, are a rare heterogeneous set of stars with unusual spectra showing prominent broad emission lines of highly ionised helium and nitrogen or carbon.
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Yellow hypergiant
A yellow hypergiant is a massive star with an extended atmosphere, a spectral class from A to K, and an initial mass of about 20–60 solar masses but having lost as much as half that mass.
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Zeta Cephei
Zeta Cephei (ζ Cep, ζ Cephei) is a star in the constellation of Cepheus.
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119 Tauri
119 Tauri (CE Tauri) is a star in the constellation Taurus.
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Redirects here:
Hot vacuum, Red supergiant, Red supergiants, Super red giant.
References
[1] https://en.wikipedia.org/wiki/Red_supergiant_star
