Top Results for Cassiopeia

Caph, officially designated as Beta Cassiopeiae, is a yellow-white giant star located approximately 54 light-years from Earth in the constellation Cassiopeia. It is one of the five vertices forming the distinctive 'W' asterism associated with the constellation, making it easily identifiable in the n...

Sh2-188 is an asymmetric planetary nebula in Cassiopeia, notable for a bright bow-like rim caused by strong interaction with interstellar gas.

Eta Cassiopeiae is a binary star system located approximately 19 light-years away in the constellation Cassiopeia. The primary component is a yellow-white G-type main-sequence star similar to the Sun, while its companion is an orange K-type dwarf. Orbiting each other with a period of roughly 480 yea...

The Pacman Nebula, catalogued as NGC 281, is an emission nebula and H II region in the constellation Cassiopeia. Ultraviolet radiation from young stars in the embedded open cluster IC 1590 ionizes the surrounding hydrogen, producing the nebula's visible glow, while dark dust lanes create its familia...

The Fish Head Nebula is the common name for IC 1795, an emission nebula in the constellation Cassiopeia. It lies roughly 7,500 light-years from Earth and forms part of a larger star-forming complex associated with the Heart Nebula region. Its glowing gas is energized by nearby young stars, making th...

Sh2-199, commonly known as the Soul Nebula or W5, is a large emission nebula located in the constellation Cassiopeia. It is an H II region situated approximately 7,500 light-years from Earth. The nebula is an active star-forming region that has been extensively studied by infrared observatories like...

HFG 1 is an old planetary nebula in Cassiopeia, shaped by the binary V664 Cas as it plows through interstellar gas and makes a bow shock.

Sh2-162, formally cataloged as NGC 7635 and commonly known as the Bubble Nebula, is an emission nebula located in the constellation Cassiopeia. It was discovered by astronomer William Herschel in 1787. The nebula is an H II region shaped by the intense stellar wind radiating from the massive O-type...

NGC 896 is a bright emission nebula in the constellation Cassiopeia, forming the western portion of the larger Heart Nebula (IC 1805) complex. It is a star-forming H II region whose hydrogen gas is ionized and energized by radiation from the young open cluster Melotte 15, causing it to glow prominen...

CTB 1 is a large, faint supernova remnant in the constellation Cassiopeia, identified through radio observations in 1960. It consists of an expanding shell of material produced by a stellar explosion and is also visible at optical wavelengths, especially through emissions from ionized oxygen and hyd...

Sharpless 2-188 is a planetary nebula in the constellation Cassiopeia, formed from material expelled by an evolved star. It has a strongly asymmetric appearance, with a bright curved arc on one side and much fainter material extending in the opposite direction. This structure is understood as the re...

IC 1795, commonly called the Fish Head Nebula, is an emission nebula and star-forming region in the constellation Cassiopeia. It lies adjacent to IC 1805, the Heart Nebula, within the larger complex of ionized gas and young stars associated with the Perseus spiral arm. Ultraviolet radiation from hot...

IC 1871 is a catalogued emission nebula in the constellation Cassiopeia and a visible part of the larger Soul Nebula region. Its appearance is produced by glowing ionized gas associated with dark dust structures, which create bright edges and obscured interior features in astronomical images. The ob...

The Phantom of the Opera Nebula is the informal name for Sh2-173, a Cassiopeia H II region whose mask-like form is linked to Cas OB5 star formation.

Segin, formally Epsilon Cassiopeiae, is a blue-white B-type star in the northern constellation Cassiopeia. It is one of the stars that outline Cassiopeia's familiar W-shaped asterism and marks its eastern end in common sky descriptions. Parallax measurements place it roughly 460 light-years from the...

The Casio KL-60 EZ-Label Printer is a manual, portable device designed for creating small labels. Its notable simplicity and affordability make it ideal for educational settings, crafting projects, or anyone needing basic labeling solutions. The compact design and straightforward operation are suita...

The Lobster Claw Nebula, catalogued as Sh2-157, is an emission nebula and H II region in the constellation Cassiopeia. Its ionized hydrogen forms curved, branching arcs that give the object its common name, while the surrounding molecular material belongs to a broader star-forming environment contai...

IRAS 23304+6147 is a protoplanetary nebula in the constellation Cassiopeia. It is notable for showing the rare 21-micron infrared dust feature, an emission feature associated with unusual carbon-rich material surrounding an evolved star. The object is of interest in astronomical studies of stellar m...

CTB 1, also catalogued as Abell 85, is a faint supernova remnant in the constellation Cassiopeia. It is associated with the high-velocity radio pulsar PSR J0002+6216, whose motion has been measured at more than 1,000 kilometers per second and traced back toward the remnant. The object is studied as...

IC 59 is a diffuse nebula in the constellation Cassiopeia, close to the bright, unstable variable star Gamma Cassiopeiae. It contains both reflection and emission components: some of its visible light is scattered starlight, while nearby gas also produces its own emission. IC 59 forms part of the wi...

The W3 Complex is a large star-forming region in the Perseus spiral arm of the Milky Way, in the direction of the constellation Cassiopeia. It contains molecular clouds, ionized gas, young stellar objects, and several sites where massive stars are forming. Astronomers study W3 because its combinatio...

vdB 4 is a reflection nebula listed in Sidney van den Bergh's catalog of reflection nebulae, published in 1966. It lies in the constellation Cassiopeia and is associated with the star HIP 3401 and the nearby open cluster region around NGC 225. Unlike an emission nebula, a reflection nebula is visibl...

3C 58 is a pulsar wind nebula in the constellation Cassiopeia, powered by the rapidly rotating neutron star PSR J0205+6449. It is a strong radio source and is also associated with emission across other wavelengths. The nebula has been proposed as the remnant of the supernova observed in 1181 CE by C...

Crescent-shaped planetary nebula in Cassiopeia whose asymmetric dolphin-like arc is caused by the central white dwarf's supersonic proper motion through the interstellar medium, creating a one-sided bow shock.

CTB 109 is a supernova remnant in the constellation Cassiopeia. It is especially notable because it contains the anomalous X-ray pulsar 1E 2259+586, now classified as a magnetar, providing a well-studied example of an association between a supernova remnant and a highly magnetized neutron star. CTB...

Abell 82 is a planetary nebula included in the catalog compiled by astronomer George Abell from astronomical survey plates. It is a faint, extended shell of gas in the constellation Cassiopeia, formed from material expelled by a dying low- or intermediate-mass star. The object is difficult to observ...

vdB 1 is a reflection nebula in the constellation Cassiopeia and the first entry in Sidney van den Bergh's Catalog of Reflection Nebulae. Its bluish appearance comes from starlight scattered by surrounding dust rather than from the gas emitting its own light. The nebula is associated with the star B...

IC 289 is a faint planetary nebula in the constellation Cassiopeia. It has a broadly circular shell and low surface brightness, so it is more difficult to observe and photograph than brighter planetary nebulae. The object is useful for observers studying the extended gas expelled by an aging star an...

Abell 84 is a planetary nebula listed in the Abell catalogue of planetary nebulae compiled from astronomical survey photographs. It is located in the constellation Cassiopeia and consists of gas expelled by a dying star, illuminated by the hot stellar remnant at its center. Like many Abell planetary...

A planetary nebula in Cassiopeia with an annular morphology catalogued in the Index Catalogue, lying several thousand light-years distant and exhibiting a moderately hot central star.