White dwarf (disambiguation)

Last updated

A white dwarf is a compact star that is no longer generating energy through nuclear fusion at its core.

White dwarf Type of stellar remnant composed mostly of electron-degenerate matter

A white dwarf, also called a degenerate dwarf, is a stellar core remnant composed mostly of electron-degenerate matter. A white dwarf is very dense: its mass is comparable to that of the Sun, while its volume is comparable to that of Earth. A white dwarf's faint luminosity comes from the emission of stored thermal energy; no fusion takes place in a white dwarf. The nearest known white dwarf is Sirius B, at 8.6 light years, the smaller component of the Sirius binary star. There are currently thought to be eight white dwarfs among the hundred star systems nearest the Sun. The unusual faintness of white dwarfs was first recognized in 1910. The name white dwarf was coined by Willem Luyten in 1922.

White dwarf may also refer to:

Film and television

Ben Savage American actor

Bennett Joseph Savage is an American actor. He played the lead role of Cory Matthews on the ABC sitcom Boy Meets World (1993–2000) and its Disney Channel sequel Girl Meets World (2014–2017).

Heather Ankeny is an American actress in film and television and stage. Her most recent appearance is on the CBS show, Criminal Minds. Additionally she has had a recurring role on Rizzoli & Isles, as well as appearing in Battle Creek, and Weeds, as well as the independent feature films, DriverX and Pig. She is an avid fantasy sports player, frequently contributing to ESPN's Fantasy section, including both the "Fantasy Focus" video and audio podcasts.

Ryan Rottman is an American actor. He is known for his role as Joey Colvin on the TeenNick series Gigantic.

Other

The White Dwarf is a human powered dirigible that has set several world records.

<i>White Dwarf</i> (magazine) magazine

White Dwarf is a magazine published by British games manufacturer Games Workshop, which has long served as a promotions and advertising platform for Games Workshop and Citadel Miniatures products.

<i>Analogue</i> (album) 2005 studio album by A-ha

Analogue is the eighth studio album by the Norwegian band A-ha, released in 2005. It is aha's first album on Polydor Records (Universal), having previously been signed to Warner Music. Four singles were also released from this record. The album's second single, "Analogue " became the group's first top 10 hit on the UK Singles Chart since "Stay on These Roads" (1988). The album reached #24 in the UK and got silver certification there.

Related Research Articles

Nova cataclysmic nuclear explosion in a white dwarf star

A nova or classical nova is a transient astronomical event that causes the sudden appearance of a bright, apparently "new" star, that slowly fades over several weeks or many months.

<i>Snow White and the Seven Dwarfs</i> (1937 film) 1937 Disney film

Snow White and the Seven Dwarfs is a 1937 American animated musical fantasy film produced by Walt Disney Productions and originally released by RKO Radio Pictures. Based on the German fairy tale by the Brothers Grimm, it is the first full-length cel animated feature film and the earliest Disney animated feature film. The story was adapted by storyboard artists Dorothy Ann Blank, Richard Creedon, Merrill De Maris, Otto Englander, Earl Hurd, Dick Rickard, Ted Sears and Webb Smith. David Hand was the supervising director, while William Cottrell, Wilfred Jackson, Larry Morey, Perce Pearce, and Ben Sharpsteen directed the film's individual sequences.

Snow White fairy tale

"Snow White" is a 19th-century German fairy tale which is today known widely across the Western world. The Brothers Grimm published it in 1812 in the first edition of their collection Grimms' Fairy Tales. It was titled in German: Sneewittchen and numbered as Tale 53. The name Sneewittchen was Low German and in the first version it was translated with Schneeweißchen. The Grimms completed their final revision of the story in 1854.

A dwarf star is a star of relatively small size and low luminosity. Most main sequence stars are dwarf stars. The term was originally coined in 1906 when the Danish astronomer Ejnar Hertzsprung noticed that the reddest stars—classified as K and M in the Harvard scheme could be divided into two distinct groups. They are either much brighter than the Sun, or much fainter. To distinguish these groups, he called them "giant" and "dwarf" stars, the dwarf stars being fainter and the giants being brighter than the Sun. Most stars are currently classified under the Morgan Keenan System using the letters O, B, A, F, G, K, and M, a sequence from the hottest: O type, to the coolest: M type. The scope of the term "dwarf" was later expanded to include the following:

BPM 37093 is a variable white dwarf star of the DAV, or ZZ Ceti, type, with a hydrogen atmosphere and an unusually high mass of approximately 1.1 times the Sun's. It is about 50 light-years from Earth, in the constellation Centaurus, and vibrates; these pulsations cause its luminosity to vary. Like other white dwarfs, BPM 37093 is thought to be composed primarily of carbon and oxygen, which are created by thermonuclear fusion of helium nuclei in the triple-alpha process.

Warwick Davis English actor and television presenter

Warwick Ashley Davis is an English actor, television presenter, writer, director, comedian, and producer. He played the title characters in Willow and the Leprechaun film series, the Ewok Wicket in Star Wars Episode VI: Return of the Jedi and Professor Filius Flitwick and Griphook in the Harry Potter films. Davis also starred as a fictionalised version of himself in the sitcom Life's Too Short, written and directed by Ricky Gervais and Stephen Merchant.

Snow White or Snow White and the Seven Dwarfs is a popular fairy tale.

Type Ia supernova

A type Ia supernova is a type of supernova that occurs in binary systems in which one of the stars is a white dwarf. The other star can be anything from a giant star to an even smaller white dwarf.

The Seven Dwarfs are a group of seven dwarfs that appear in the fairy tale Snow White and others.

Feige 55 is a hot white dwarf approximately 665 light-years away from the Sun in the constellation of Ursa Major. The star is likely a post-AGB star with relatively high luminosity for a standard white dwarf. It is also in a close binary system with orbital period of 1.4933 days.

Seven Dwarfs Mine Train steel roller coaster

Seven Dwarfs Mine Train is a steel roller coaster located at Magic Kingdom and Shanghai Disneyland Park. Manufactured by Vekoma, the roller coaster is situated in the Fantasyland sections of both parks. The Magic Kingdom version opened to the public on May 28, 2014, as part of a major park expansion called New Fantasyland, while the Shanghai version opened on June 16, 2016. The ride is themed to Walt Disney's 1937 film Snow White and the Seven Dwarfs, the first traditional-animated feature film.

G 240-72 is a nearby degenerate star of spectral class DQP9.0, located in constellation Draco.

Stein 2051

Stein 2051 is a nearby binary star system, containing a red dwarf and a degenerate star, located in constellation Camelopardalis at about 18 ly from Earth.

<i>Snow White and the Huntsman</i> 2012 film by Rupert Sanders

Snow White and the Huntsman is a 2012 American fantasy film based on the German fairy tale "Snow White" compiled by the Brothers Grimm. The film is the directorial debut of Rupert Sanders, with a screenplay by Evan Daugherty, John Lee Hancock and Hossein Amini, from a screen story by Daugherty. In the film's retelling of the tale, Snow White grows up imprisoned by her evil stepmother, Queen Ravenna, a powerful sorceress. After Snow White escapes into the forest, Ravenna tells Eric, the Huntsman that she will bring back his dead wife if he captures Snow White.

<i>White Dwarf</i> (film) 1995 film by Peter Markle

White Dwarf is a 1995 American science fiction television film directed by Peter Markle and starring Paul Winfield, Neal McDonough, CCH Pounder, Beverley Mitchell, David St. James, Ele Keats, and James Morrison. It was written by Bruce Wagner and produced by Francis Ford Coppola, Robert Halmi Sr. and Bruce Wagner for American Zoetrope. Originally intended as a television pilot, the film first aired on the Fox Network on May 23, 1995. While expected to be well received, the film instead garnered generally negative reception. Negative reception notwithstanding, the project received a 1995 ASC Awards nomination for 'Outstanding Achievement in Cinematography'.

Zombie star

A zombie star is a hypothetical result of a Type Iax supernova which leaves behind a remnant star, rather than completely dispersing the stellar mass. Type Iax supernovae are similar to Type Ia, but have a lower ejection velocity and lower luminosity. Scientists think that Type Iax supernovae occur at a rate between 5 and 30 percent of the Ia supernova rate. Thirty supernovae have been identified in this category.