- Copilot Answer
ConstellationCygnus
VisibilityThe 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 unknown until the end of the 16th ce… See more
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P Cygni - Astronomy Magazine
Jan 1, 2024 · With a mass up to 60 times that of the Sun, this behemoth is a beacon of luminosity about a half-million to a million times brighter than our star; P Cygni is, in fact, one of the most...
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 Star Facts - Universe Guide
P Cygni is a blue star in the constellation of Cygnus. It can be seen in the northern hemisphere night sky. P Cygni distance from Earth is 10192.60 light years away.
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 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 …
P Cygni stars - Astrosurf
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 …
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 , and is now classified as a very slow nova.
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 …
Spectroscopy of P-Cygni - Scientific Amateur …
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 Variable Stars, and are considered likely progenitors …
Title: P Cygni: An Extraordinary Luminous Blue Variable
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 …
ψ Cygni (psi Cygni) - Star in Cygnus | TheSkyLive.com
ψ Cygni is a multiple main-sequence star of magnitude 4.92 in the constellation of Cygnus. Find complete information about ψ Cygni on TheSkyLive.com.
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 …
P Cygni line profile - Oxford Reference
5 days ago · A feature in a spectrum that indicates a strong outflow of matter from a star. It is named after P Cygni, a Be star whose spectrum shows strong hydrogen and helium emission …
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. …
List of most luminous stars - Wikipedia
For a list of the brightest stars seen from Earth, see the list of brightest stars. There are three stars with over 1 million L☉ and visible to the naked eye: WR 22, WR 24 and Eta Carinae. All of …
The P Cygni Profile and Friends - SpringerLink
If there’s one spectral line profile which most amateur astronomers have heard of it’s the P Cygni profile. P Cygni itself is a class B star lying in the plain of the northern MilkyWay close to the …
The Stars that Guide Us - Washington University in St. Louis
Jan 6, 2020 · To Find North (Using the North Star Polaris): Identify the Big Dipper. Use the two pointer stars (not connected to handle of the dipper) to measure 5 lengths pointing directly to …
Here, we report on observations of the two bright (mV < 2.1), hot (Teff > 22,000 K) B stars ε Orionis (Alnilam) and β Canis Majoris (Mirzam) that were conducted using an SII system (see …
AZ Cygni - Wikipedia
AZ Cygni was first observed in the observations used to produce the Bonner Durchmusterung catalogue, published by Friedrich Argelander in the mid 19th century. [16] Thomas William …
Peter KOREVAAR | Dr. | Karlsruhe Institute of Technology, …
The authors analyse the time evolution (1978 - 1983) of the shell lines in the hypergiant star P Cygni (B1Ia+). The wind of P Cygni is characterized by a stable shell formed at large...
