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- Located in about 5,300 light-years (1,560 parsecs) from Earth, it is a hypergiant luminous blue variable (LBV) star of spectral type B1-2 Ia-0ep that is one of the most luminous stars in the Milky Way. The star is located about 5,000 to 6,000 light-years (1,500–1,800 parsecs) from Earth.Learn more:Located in about 5,300 light-years (1,560 parsecs) from Earth, it is a hypergiant luminous blue variable (LBV) star of spectral type B1-2 Ia-0ep that is one of the most luminous stars in the Milky Way. The star is located about 5,000 to 6,000 light-years (1,500–1,800 parsecs) from Earth.en.wikipedia.org/wiki/P_CygniP Cygni itself (also known as 34 Cygni) is a Be star, one of the most luminous stars known and only the third variable star to be discovered; it lies about 7,000 light-years away. It was first noted in 1600 in a place where no star had been recorded before, as a third magnitude star.www.daviddarling.info/encyclopedia/P/P_Cygni_pr…P-Cygni is a Luminous Blue Variable (LBV), a very massive, rapidly rotating and unstable supergiant B type star. LBVs are rare, only 20 listed in the General Catalog of Variable Stars, and are considered likely progenitors of Wolf-Rayet stars.www.cloudynights.com/topic/519285-spectroscopy …P Cygni is now a variable B1 supergiant of 5.0 mean magnitude. P Cygni stars lines shows a profile type called "P Cyg": an emission component to the red side of an aborption line. There are blue super-giant stars. They have larges masses and high intrinsic luminosities.buil.astrosurf.com/us/peculiar2/pcygni.htm
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See all on WikipediaP Cygni - Wikipedia
P Cygni (34 Cygni) is a variable star in the constellation Cygnus. The designation "P" was originally assigned by Johann Bayer in Uranometria as a nova. Located in about 5,300 light-years (1,560 parsecs) from Earth, it is a hypergiant luminous blue variable (LBV) star of spectral type B1-2 Ia-0ep that is one of the most … See more
The star is located about 5,000 to 6,000 light-years (1,500–1,800 parsecs) from Earth. Despite this vast distance, it is visible to the naked eye in suitable dark sky locations. It was … See more
Luminous blue variables like P Cygni are very rare and short lived, and only form in regions of galaxies where intense star formation is … See more
It has been proposed P Cygni's eruptions could be caused by mass transfer to a hypothetical companion star of spectral type B that … See more
P Cygni is widely considered to be the earliest known example of a luminous blue variable. However, it is far from a typical example. Typically, … See more
P Cygni gives its name to a type of spectroscopic feature called a P Cygni profile, where the presence of both absorption and … See more
Wikipedia text under CC-BY-SA license P Cygni Star Facts - Universe Guide
P Cygni is a variable star located in the constellation of Cygnus, The Swan. It is not part of the Cygnus constellation outline but is within the borders of the constellation. Based on the …
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P Cygni - aavso
The September 2009 Variable Star of the Season is P Cygni, one of the rare S Doradus or luminous blue variable stars, and the namesake for a curious phenomenon in astrophysics. Read on for more about this bright but …
P Cygni stars - Astrosurf
P Cygni stars. The characteristic star of this group is P Cygni, a nova which flared up in 1600. P Cygni is now a variable B1 supergiant of 5.0 mean magnitude. P Cygni stars lines shows a …
P Cygni - Astronomy Magazine
Jan 1, 2024 · P Cygni is a remarkable novalike luminous blue variable — a blue supergiant or even a hypergiant so massive it’s barely holding itself together.
P Cyg - University of Illinois Urbana-Champaign
The "luminous blue variable" P Cygni shines at center in a beautiful setting in the middle of the thick Milky Way. Down and to the left are stars heavily reddened by intervening interstellar …
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The Variability of Massive Stars - astrobites
Jan 26, 2011 · P Cygni. Astronomers have been observing the luminous blue variable P Cygni for a long time, because it is bright, and nearby; thus one can easily obtain quality spectra with relatively shorter exposures with a telescope.
Characteristics of the Variable Star P Cygni Determined From …
Evidence for the high luminosity of P Cyg is confirmed by its derived absolute magnitude of M (v) = -8.46 +/-0.03, which translates to log (L/L (solar)) = 5.54 +/-0.02 for an effective temperature …
Title: P Cygni: An Extraordinary Luminous Blue Variable - arXiv.org
Aug 27, 1999 · P Cygni was the first star that showed the effects of stellar evoluton from a study of its photometric history. It shares some common properties with the so-called Luminous Blue …
P Cygni: An Extraordinary Luminous Blue Variable - ADS
P Cygni was the first star that showed the effects of stellar evoluton from a study of its photometric history. It shares some common properties with the so-called Luminous Blue Variables. …
P Cygni - Infogalactic: the planetary knowledge core
P Cygni (34 Cyg) is a variable star in the constellation Cygnus. The designation "P" was originally assigned by Johann Bayer in Uranometria as a nova. Located about 5000 to 6000 light-years …
Identification of Spectral Lines - History of P-Cygni lines
In the late 19th century, Keeler discovers the unusual emission lines of P-Cygni, a variable star which may have had a novae phase in 1600. It had several bright lines ascribed to helium , …
P Cygni profile - David Darling
A P Cygni profile is a combination of features in a star's spectrum that points to an outflow of material in the form of either an expanding shell of gas or a powerful stellar wind. The P Cygni …
P Cygni: An Extraordinary Luminous Blue Variable
P Cygni was the first star that showed the effects of stellar evoluton from a study of its photometric history. It shares some common properties with the so-called Luminous Blue Variables. …
P Cygni - Wikiwand
P Cygni (34 Cygni) is a variable star in the constellation Cygnus. The designation "P" was originally assigned by Johann Bayer in Uranometria as a nova. Located about 5,300 light …
Jun 7, 2019 · P Cygni is a prototype of the luminous blue variables (or S Doradus variables), and the star displays photometric and emission line variability on a timescale of years (known as …
Spectroscopy of P-Cygni - Scientific Amateur Astronomy - Cloudy …
Nov 22, 2015 · P-Cygni is a Luminous Blue Variable (LBV), a very massive, rapidly rotating and unstable supergiant B type star. LBVs are rare, only 20 listed in the General Catalog of …
Characteristics of the Variable Star P Cygni Determined from …
Evidence for the high luminosity of P Cyg is confirmed by its derived absolute magnitude of M (sub V)= -8.46 +/- 0.03, which translates to log (L/L (sun)) = 5.54 +/- 0.02 for an effective …
P Cygni: The Star that Started it All | SpringerLink
P Cygni was discovered in 1600 AD during an outburst when it reached 3rd magnitude. After another outburst in 1655 the star is now showing irregular photometric variations with an …
P Cygni - Conservapedia
P Cygni (34 Cygni, Nova Cygni 1600, P Cyg, HD 193237, HIP 100044) is a hypergiant variable star in the constellation of Cygnus, the swan. The star is known for being the third variable star …
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