Table of Contents
47 relations: Absorption edge, Accretion disk, American Association of Variable Star Observers, Andromeda (constellation), Apparent magnitude, Astronomische Gesellschaft Katalog, Astronomische Nachrichten, Astronomy & Astrophysics, Balmer series, Beat (acoustics), Binary star, Black-body radiation, Carbon, Cataclysmic variable star, Durchmusterung, Eddington luminosity, Effective temperature, Einstein Observatory, General Catalogue of Stellar Radial Velocities, Guide Star Catalog, Helium, Henry Draper Catalogue, Hipparcos, Hydrogen, IRAS, Iron, Luminosity, Neon, Nitrogen, Orbit, Oxygen, P Cygni, Phosphorus, PPM Star Catalogue, Radiation pressure, Red giant, Second, Silicon, SIMBAD, Smithsonian Astrophysical Observatory Star Catalog, Solar cycle, Spectral line, Star catalogue, Stellar classification, Symbiotic binary, White dwarf, 2MASS.
- Z Andromedae variables
Absorption edge
In physics, an absorption edge (also known as an absorption discontinuity or absorption limit) is a sharp discontinuity in the absorption spectrum of a substance.
See Z Andromedae and Absorption edge
Accretion disk
An accretion disk is a structure (often a circumstellar disk) formed by diffuse material in orbital motion around a massive central body.
See Z Andromedae and Accretion disk
American Association of Variable Star Observers
The American Association of Variable Star Observers (AAVSO) is an international nonprofit organization.
See Z Andromedae and American Association of Variable Star Observers
Andromeda (constellation)
Andromeda is one of the 48 constellations listed by the 2nd-century Greco-Roman astronomer Ptolemy, and one of the 88 modern constellations.
See Z Andromedae and Andromeda (constellation)
Apparent magnitude
Apparent magnitude is a measure of the brightness of a star or other astronomical object.
See Z Andromedae and Apparent magnitude
Astronomische Gesellschaft Katalog
The Astronomische Gesellschaft Katalog (AGK) is an astrometric star catalogue of the Northern hemisphere.
See Z Andromedae and Astronomische Gesellschaft Katalog
Astronomische Nachrichten
Astronomische Nachrichten (Astronomical Notes), one of the first international journals in the field of astronomy, was established in 1821 by the German astronomer Heinrich Christian Schumacher.
See Z Andromedae and Astronomische Nachrichten
Astronomy & Astrophysics
Astronomy & Astrophysics (A&A) is a monthly peer-reviewed scientific journal covering theoretical, observational, and instrumental astronomy and astrophysics.
See Z Andromedae and Astronomy & Astrophysics
Balmer series
The Balmer series, or Balmer lines in atomic physics, is one of a set of six named series describing the spectral line emissions of the hydrogen atom.
See Z Andromedae and Balmer series
Beat (acoustics)
In acoustics, a beat is an interference pattern between two sounds of slightly different frequencies, perceived as a periodic variation in volume whose rate is the difference of the two frequencies.
See Z Andromedae and Beat (acoustics)
Binary star
A binary star or binary star system is a system of two stars that are gravitationally bound to and in orbit around each other.
See Z Andromedae and Binary star
Black-body radiation
Black-body radiation is the thermal electromagnetic radiation within, or surrounding, a body in thermodynamic equilibrium with its environment, emitted by a black body (an idealized opaque, non-reflective body).
See Z Andromedae and Black-body radiation
Carbon
Carbon is a chemical element; it has symbol C and atomic number 6.
Cataclysmic variable star
In astronomy, cataclysmic variable stars (CVs) are stars which irregularly increase in brightness by a large factor, then drop back down to a quiescent state.
See Z Andromedae and Cataclysmic variable star
Durchmusterung
In astronomy, Durchmusterung or Bonner Durchmusterung (BD) is an astrometric star catalogue of the whole sky, published by the Bonn Observatory in Germany from 1859 to 1863, with an extension published in Bonn in 1886.
See Z Andromedae and Durchmusterung
Eddington luminosity
The Eddington luminosity, also referred to as the Eddington limit, is the maximum luminosity a body (such as a star) can achieve when there is balance between the force of radiation acting outward and the gravitational force acting inward.
See Z Andromedae and Eddington luminosity
Effective temperature
The effective temperature of a body such as a star or planet is the temperature of a black body that would emit the same total amount of electromagnetic radiation.
See Z Andromedae and Effective temperature
Einstein Observatory
Einstein Observatory (HEAO-2) was the first fully imaging X-ray telescope put into space and the second of NASA's three High Energy Astrophysical Observatories.
See Z Andromedae and Einstein Observatory
General Catalogue of Stellar Radial Velocities
The General Catalogue of Stellar Radial Velocities is a star catalogue which lists radial velocities for 15,107 stars.
See Z Andromedae and General Catalogue of Stellar Radial Velocities
Guide Star Catalog
The Guide Star Catalog (GSC), also known as the Hubble Space Telescope, Guide Catalog (HSTGC), is a star catalog compiled to support the Hubble Space Telescope with targeting off-axis stars.
See Z Andromedae and Guide Star Catalog
Helium
Helium (from lit) is a chemical element; it has symbol He and atomic number 2.
Henry Draper Catalogue
The Henry Draper Catalogue (HD) is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts, which gave classifications for 86,933 more stars. Z Andromedae and Henry Draper Catalogue are Henry Draper Catalogue objects.
See Z Andromedae and Henry Draper Catalogue
Hipparcos
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993.
See Z Andromedae and Hipparcos
Hydrogen
Hydrogen is a chemical element; it has symbol H and atomic number 1.
IRAS
The Infrared Astronomical Satellite (Dutch: Infrarood Astronomische Satelliet) (IRAS) was the first space telescope to perform a survey of the entire night sky at infrared wavelengths.
Iron
Iron is a chemical element.
Luminosity
Luminosity is an absolute measure of radiated electromagnetic energy (light) per unit time, and is synonymous with the radiant power emitted by a light-emitting object.
See Z Andromedae and Luminosity
Neon
Neon is a chemical element; it has symbol Ne and atomic number 10.
Nitrogen
Nitrogen is a chemical element; it has symbol N and atomic number 7.
Orbit
In celestial mechanics, an orbit (also known as orbital revolution) is the curved trajectory of an object such as the trajectory of a planet around a star, or of a natural satellite around a planet, or of an artificial satellite around an object or position in space such as a planet, moon, asteroid, or Lagrange point.
Oxygen
Oxygen is a chemical element; it has symbol O and atomic number 8.
P Cygni
P Cygni (34 Cygni) is a variable star in the constellation Cygnus. Z Andromedae and p Cygni are Henry Draper Catalogue objects and Hipparcos objects.
Phosphorus
Phosphorus is a chemical element; it has symbol P and atomic number 15.
See Z Andromedae and Phosphorus
PPM Star Catalogue
The PPM Star Catalogue (Positions and Proper Motions Star Catalogue) is the successor of the SAO Catalogue.
See Z Andromedae and PPM Star Catalogue
Radiation pressure
Radiation pressure (also known as light pressure) is mechanical pressure exerted upon a surface due to the exchange of momentum between the object and the electromagnetic field.
See Z Andromedae and Radiation pressure
Red giant
A red giant is a luminous giant star of low or intermediate mass (roughly 0.3–8 solar masses) in a late phase of stellar evolution.
See Z Andromedae and Red giant
Second
The second (symbol: s) is the unit of time in the International System of Units (SI), historically defined as of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each (24 × 60 × 60.
Silicon
Silicon is a chemical element; it has symbol Si and atomic number 14.
SIMBAD
SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data) is an astronomical database of objects beyond the Solar System.
Smithsonian Astrophysical Observatory Star Catalog
The Smithsonian Astrophysical Observatory Star Catalog is an astrometric star catalogue, created by Smithsonian Institution, a research institute.
See Z Andromedae and Smithsonian Astrophysical Observatory Star Catalog
Solar cycle
The solar cycle, also known as the solar magnetic activity cycle, sunspot cycle, or Schwabe cycle, is a nearly periodic 11-year change in the Sun's activity measured in terms of variations in the number of observed sunspots on the Sun's surface.
See Z Andromedae and Solar cycle
Spectral line
A spectral line is a weaker or stronger region in an otherwise uniform and continuous spectrum.
See Z Andromedae and Spectral line
Star catalogue
A star catalogue is an astronomical catalogue that lists stars.
See Z Andromedae and Star catalogue
Stellar classification
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
See Z Andromedae and Stellar classification
Symbiotic binary
A symbiotic binary is a type of binary star system, often simply called a symbiotic star.
See Z Andromedae and Symbiotic binary
White dwarf
A white dwarf is a stellar core remnant composed mostly of electron-degenerate matter.
See Z Andromedae and White dwarf
2MASS
The Two Micron All-Sky Survey, or 2MASS, was an astronomical survey of the whole sky in infrared light. Z Andromedae and 2MASS are 2MASS objects.
See also
Z Andromedae variables
- 4 Draconis
- AG Draconis
- CH Cygni
- DD Microscopii
- EG Andromedae
- R Aquarii
- SY Muscae
- Z Andromedae
References
Also known as Z And, Z Andromedae star.