Table of Contents
18 relations: Adaptive optics, Archimedean spiral, Asymptotic giant branch, Binary star, Binary system, Carbon star, Epoch (astronomy), Fugitive dust, Guide star, Hubble Space Telescope, Infrared, International Celestial Reference System and its realizations, List of largest stars, Mira variable, Nebula, Pegasus (constellation), Protoplanetary nebula, W. M. Keck Observatory.
- Carbon stars
- Protoplanetary nebulae
Adaptive optics
Adaptive optics (AO) is a technique of precisely deforming a mirror in order to compensate for light distortion.
See LL Pegasi and Adaptive optics
Archimedean spiral
The Archimedean spiral (also known as Archimedes' spiral, the arithmetic spiral) is a spiral named after the 3rd-century BC Greek mathematician Archimedes.
See LL Pegasi and Archimedean spiral
Asymptotic giant branch
The asymptotic giant branch (AGB) is a region of the Hertzsprung–Russell diagram populated by evolved cool luminous stars.
See LL Pegasi and Asymptotic giant branch
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.
Binary system
A binary system is a system of two astronomical bodies of the same kind that are comparable in size.
See LL Pegasi and Binary system
Carbon star
A carbon star (C-type star) is typically an asymptotic giant branch star, a luminous red giant, whose atmosphere contains more carbon than oxygen. LL Pegasi and carbon star are carbon stars.
Epoch (astronomy)
In astronomy, an epoch or reference epoch is a moment in time used as a reference point for some time-varying astronomical quantity.
See LL Pegasi and Epoch (astronomy)
Fugitive dust
Fugitive dust is an environmental air quality term for very small particles suspended in the air, primarily mineral dust that is sourced from the soil of Earth's pedosphere.
See LL Pegasi and Fugitive dust
Guide star
In astronomy, a guide star is a reference star used to accurately maintain the tracking by a telescope of a celestial body, whose apparent motion through the sky is primarily due to Earth's rotation.
Hubble Space Telescope
The Hubble Space Telescope (often referred to as HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation.
See LL Pegasi and Hubble Space Telescope
Infrared
Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves.
International Celestial Reference System and its realizations
The International Celestial Reference System (ICRS) is the current standard celestial reference system adopted by the International Astronomical Union (IAU).
See LL Pegasi and International Celestial Reference System and its realizations
List of largest stars
Below are lists of the largest stars currently known, ordered by radius and separated into categories by galaxy.
See LL Pegasi and List of largest stars
Mira variable
Mira variables (named for the prototype star Mira) are a class of pulsating stars characterized by very red colours, pulsation periods longer than 100 days, and amplitudes greater than one magnitude in infrared and 2.5 magnitude at visual wavelengths. LL Pegasi and Mira variable are mira variables.
See LL Pegasi and Mira variable
Nebula
A nebula (cloud, fog;: nebulae, nebulæ, or nebulas) is a distinct luminescent part of interstellar medium, which can consist of ionized, neutral, or molecular hydrogen and also cosmic dust.
Pegasus (constellation)
Pegasus is a constellation in the northern sky, named after the winged horse Pegasus in Greek mythology.
See LL Pegasi and Pegasus (constellation)
Protoplanetary nebula
A protoplanetary nebula or preplanetary nebula (PPN, plural PPNe) is an astronomical object which is at the short-lived episode during a star's rapid evolution between the late asymptotic giant branch (LAGB) phase and the subsequent planetary nebula (PN) phase. LL Pegasi and protoplanetary nebula are protoplanetary nebulae.
See LL Pegasi and Protoplanetary nebula
W. M. Keck Observatory
The W. M. Keck Observatory is an astronomical observatory with two telescopes at an elevation of 4,145 meters (13,600 ft) near the summit of Mauna Kea in the U.S. state of Hawaii.
See LL Pegasi and W. M. Keck Observatory
See also
Carbon stars
- BH Crucis
- CH star
- CIT 6
- CW Leonis
- Carbon star
- DY Persei
- EU Andromedae
- HD 117566
- II Lupi
- LL Pegasi
- LP Andromedae
- La Superba
- R Capricorni
- R Fornacis
- R Leporis
- R Sculptoris
- R Volantis
- RS Telescopii
- RT Normae
- RU Camelopardalis
- S Scuti
- ST Camelopardalis
- SU Andromedae
- TT Cygni
- TW Horologii
- TX Piscium
- U Antliae
- U Aquarii
- U Camelopardalis
- U Hydrae
- UU Aurigae
- UZ Pyxidis
- V Aquilae
- V Coronae Australis
- V Coronae Borealis
- V Crucis
- V Hydrae
- W Canis Majoris
- W Orionis
- WX Coronae Australis
- WZ Cassiopeiae
- X Cancri
- X Trianguli Australis
- Y Tauri
- Z Ursae Minoris
Protoplanetary nebulae
- AS 314
- Boomerang Nebula
- CW Leonis
- Calabash Nebula
- Cotton Candy Nebula
- Egg Nebula
- Frosty Leo Nebula
- HD 101584
- HD 179821
- IRAS 19024+0044
- IRAS 19475+3119
- IRAS 23304+6147
- LL Pegasi
- List of protoplanetary nebulae
- M1-92
- NGC 7027
- Post-AGB star
- Protoplanetary nebula
- Red Rectangle Nebula
- Red Square Nebula
- Water Lily Nebula
- Westbrook Nebula
References
Also known as AFGL 3068, IRAS 23166+1655, LL Peg.