V838 Herculis

V838 Herculis, also known as Nova Herculis 1991, was a nova which occurred in the constellation Hercules in 1991. ^[1]

12 relations: Accretion disk, American Association of Variable Star Observers, Apparent magnitude, Binary star, Chandrasekhar limit, George Alcock, Hercules (constellation), National Geographic Society – Palomar Observatory Sky Survey, Nova, Photographic magnitude, White dwarf, Yaxley, Cambridgeshire.
1991 in science
Astronomical objects discovered in 1991

Accretion disk

An accretion disk is a structure (often a circumstellar disk) formed by diffuse material in orbital motion around a massive central body.

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American Association of Variable Star Observers

The American Association of Variable Star Observers (AAVSO) is an international nonprofit organization.

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Apparent magnitude

Apparent magnitude is a measure of the brightness of a star or other astronomical object.

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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.

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Chandrasekhar limit

The Chandrasekhar limit is the maximum mass of a stable white dwarf star.

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George Alcock

George Eric Deacon Alcock, MBE (28 August 1912, in Peterborough, Northamptonshire – 15 December 2000) was an English amateur astronomer.

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Hercules (constellation)

Hercules is a constellation named after Hercules, the Roman mythological hero adapted from the Greek hero Heracles.

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National Geographic Society – Palomar Observatory Sky Survey

The National Geographic Society – Palomar Observatory Sky Survey (NGS-POSS, or just POSS, also POSS I) was a major astronomical survey, that took almost 2,000 photographic plates of the night sky.

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A nova (novae or novas) is a transient astronomical event that causes the sudden appearance of a bright, apparently "new" star (hence the name "nova", Latin for "new") that slowly fades over weeks or months.

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Photographic magnitude

Photographic magnitude is a measure of the relative brightness of a star or other astronomical object as imaged on a photographic film emulsion with a camera attached to a telescope.

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White dwarf

A white dwarf is a stellar core remnant composed mostly of electron-degenerate matter.

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Yaxley, Cambridgeshire

Yaxley is a village and civil parish in the Huntingdonshire district in Cambridgeshire, England.

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References

[1] https://en.wikipedia.org/wiki/V838_Herculis

Also known as V838 Her.

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