Xi Cygni
Xi Cygni (ξ Cyg) is a star in the constellation Cygnus. Its apparent magnitude is 3.70.

This is an excerpt from the article Xi Cygni from the Wikipedia free encyclopedia. A list of authors is available at Wikipedia.
The article Xi Cygni at en.wikipedia.org was accessed 123 times in the last 30 days. (as of: 11/18/2013)
Images on Xi Cygni
Preview image:
Original:
Search results from Google and Bing
1
>30
1
Xi Cygni - Jim Kaler
XI CYG (Xi Cygni). Xi Cygni (Xi the 14th letter of the Greek alphabet) is one whopper of a star, moreover one with an unusual spectral class. Back to basics first.
stars.astro.illinois.edu/sow/xicyg.html
2
>30
2
Xi Cygni - Wikipedia, the free encyclopedia
Xi Cygni. From Wikipedia, the free encyclopedia. Jump to: navigation, search ... Xi Cygni (ξ Cyg) is a star in the constellation Cygnus. Its apparent magnitude is ...
en.wikipedia.org/wiki/Xi_Cygni
17
6
3
Cygnus
Cygnus, The Swan, is one of the more obvious asterisms in the summer skies, which -- because of its shape -- is sometimes called the Northern Cross.
www.dibonsmith.com/cyg_con.htm
3
>30
4
Xi Cygni , an orange supergiant star in Cygnus
Xi Cygni is an orange supergiant star in the constellation Cygnus. At 841 light years away, it is the 371st brightest star in the Earth's sky, where it shines at an ...
www.astrostudio.org/xhip.php?hip=104060
4
>30
5
Orange Supergiant Star Shines Through Hazy Nebula in Amazing ...
5 Mar 2014 ... Orange supergiant star, Xi Cygni, beams through the red haze of the North American Nebula's "west coast," in this stunning night sky photo ...
www.space.com/24706-orange-supergiant-star-nebula-photo.html
5
>30
6
61 Cygni - HyperPhysics
61 Cygni was christened the "Flying Star" in 1792 by Giuseppe Piazzi (1746- 1826) ... (Xi Draconis) and southwest of Altais or Nodus Secundus (Delta Draconis).
hyperphysics.phy-astr.gsu.edu/hbase/starlog/cygni.html
6
>30
7
xi cygni - Simbad
Query : Xi Cygni, C.D.S. - SIMBAD4 rel 1.225 - 2015.04.28CEST06:36:10 ... ksi Cyg -- Peculiar Star. Other object types: ** (), * (*,AG,BD,FK5,GC,GCRV​,GEN# ...
simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=xi+cygni&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id
7
>30
8
Translation of Xi Cygni in Italian
Translation of Xi Cygni in Italian. Translate Xi Cygni in Italian online and download now our free translator to use any time at no charge.
translation.babylon.com/italian/Xi+Cygni/
8
>30
9
Xi Cygni - Frosty Drew Observatory & Sky Theatre
Bayer: ξ Cyg; Bayer Long: Xi Cygni; Flamsteed: 62 Cygni; SAO : 50424; HR : 8079; HD : 200905; DM : BD+43 3800; GC : 29459; Right Ascention: 21h 4m ...
frostydrew.org/stars.dc/star/id-50424/
9
>30
10
xi Cygni
catalogues and names, x Cyg, NSV 13518, 62 Cyg, HR 8079, HD 200905, SAO 50424, BD +43 3800, FK5: 792. constellation, Cygnus ...
www.alcyone.de/SIT/bsc/HR8079.html
Search results for "Xi Cygni"
Google: approx. 33.300
Xi Cygni in science
Xi Cygni - Wikipedia, the free encyclopedia
Xi Cygni. From Wikipedia, the free encyclopedia. Jump to: navigation, search ... Xi Cygni (ξ Cyg) is a star in the constellation Cygnus. Its apparent magnitude is ...
Xi Cygni - Jim Kaler
XI CYG (Xi Cygni). Xi Cygni (Xi the 14th letter of the Greek alphabet) is one whopper of a star, moreover one with an unusual spectral class. Back to basics first.
xi Cygni
catalogues and names, x Cyg, NSV 13518, 62 Cyg, HR 8079, HD 200905, SAO 50424, ... Massachusetts: Harvard University; Cannon, A.J., Harvard Annals, Vol.
xi - definition of xi in English from the Oxford dictionary
1The fourteenth letter of the Greek alphabet (Ξ, ξ), transliterated as 'x'. Example sentences ... 1.1 (Xi) [ followed by Latin genitive ] Astronomy The fourteenth star in a specified constellation: Xi Cygni. More example .... Oxford University Press.
Spectroscopy - University of Washington Astronomy Department
This will load the spectrum of a star similar to 41 Cygni (but, again, not the same star). .... ~400 nm. 7250 K. +/- 400 K. F0. A8. F2. 52 Cygni. 69 Cygni. x Cygni ...
Corvus, Crater, Crux, Cygnus - RSAA - ANU
The Australian National University ... Corvus, Crater, Crux, Cygnus. Jump to: Corvus. Crater. Crux. Cygnus .... Xi Cygni, 3-4, Sheri Smith & Sean Abrams.
Search for X-ray emission from Nova Cygni 1975 - Nature
May 20, 1976 ... Search for X-ray emission from Nova Cygni 1975. J. A. HOFFMAN, W. H. G. ... 7 (University of Chicago, Chicago, 1960). 12. Brecher, K., and ...
Variability of the X-ray P Cygni Line Profiles from Circinus X-1 Near ...
Dec 20, 2001 ... Spectra from both flux states show clear P Cygni lines, predominantly from H-like and He-like ion species. These indicate the presence of a ...
A phenomenological model for the X-ray spectrum of Nova V2491 ...
ABSTRACT The X-ray flux of Nova V2491 Cyg reached a maximum some forty days after optical maximum. ... We show that the deep absorption lines of the X- ray spectrum at maximum, and nine days ...... Ciro Pinto. University of Cambridge  ...
Observing Variable Stars, Novae and Supernovae - Cambridge ...
corona 82, 88. Cortini, Giancarlo 197. Crab Nebula 192–193. CW stars 123, 128 –131. CWA stars 123, 128–131. CWB stars 123, 128–131. Cygnus X-1 199–200.
Books on the term Xi Cygni
Monthly Notices of the Royal Astronomical Society
1865
In the notes to Baily's Flamsteed will be found the following, " 1 7 Cygni M. Bessel does not think that this is the star designated by the letter % in ... 343, 1 7 1 5, will, I think, most clearly show that the variable is really the x Cygni of Bayer.
365 Starry Nights : An Introduction to Astronomy for Every Night of the Year
365 Starry Nights : An Introduction to Astronomy for Every Night of the Year
Chet Raymo, 1990
THE AMATEUR STARGAZER'S ULTIMATE HOME COMPANION 365 Starry Nights is a unique and fascinating introduction to astronomy designed to give you a complete, clear picture of the sky every night of the year. Divided into 365 concise, illustrated essays, it focuses on the aesthetic as well as the scientific aspects of stargazing. It offers the most ...
Exploring the Night Sky with Binoculars
Patrick Moore, 2000
(At infra-red wavelengths, Chi Cygni is one of the brightest objects in the entire sky.) It was the third variable star to be identified, by Kirch as long ago as 1686. Chi is in the same X 12 field with Eta. When near maximum it cannot be mistaken,  ...
A cycle of celestial objects: for the use of naval, ...
William Henry Smyth, 1844
Cygni + >0Cygni 169 P. xix. Cygni S. 16 Cygni v276 P. xix. Cygni -278 P. xix. Cygni 6 Cygni 73 y. iv. Cygni 295 P. xix. Cygni *V Cygni o* Cygni 29 M. Cygni 199 P. xx. Cygni a' Cygni 49 Cygni a Cygni 52 Cygni X Cygni V 429 P. xx. Cygni 59 ...
Observations Made in Astronomy, Magnetism and Meteorology
Royal Greenwich Observatory, 1837
55-90 54-64 8 Cygni. . . . . . . . . . 44. 25139 25-0311 1 1 я ‚ 683 ‚ 45. 15. 53'52 5286 Piazzi XIX. 37|. - 6. 55. 53133 53-59 ... 47-80516-91 Piazzi XI X. 371. - 6. 55 . 54-17|. 52-57 ' 7-03I 31. 85. 198012110 68 Draconis. . . . . —10. 6. 15-7011 14' 61 ...
Discover the Stars
Discover the Stars
Richard Berry, 1987
YA This title for beginning stargazers is well laid out and provides simple expla nations and instructions for exploring the stars, planets, and moon. The star charts of various constellations are sim ple, their disadvantage being that they don't prepare beginners for the masses of other stars in the night sky. There are also star charts for t...
Development of Google searches


Blog posts on the term
Xi Cygni
Xi Cygni - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Xi_Cygni
Xi Cygni
stars.astro.illinois.edu/sow/xicyg.html
jeffj astrophotography: Xi Cygni featured on Space.com and YahooNews (U.S. and abroad)!
http://jeffjastro.com Hi all, it turns out another recent object, Xi Cygni (http://jeffjastro.com/dso/XiCygni_23Dec13.htm), was featured on Space.com on 5 Mar 14! A facebook friend let me know :) Here is the link to the article on Space.com:http://www.space.com/24706-orange-supergiant-star-nebula-photo.html Link to the YahooNews story:http://news.yahoo.com/orange-supergiant-star-shines-hazy-nebula-amazing-photo-120510522.html Link to a YahooNews story in UK and Ireland:https://uk.news.yahoo.com/orange-supergiant-star-shines-hazy-nebula-amazing-photo-120510522.html Here is a small version of the image that was featured (this is an Ha_HaRGB image, Xi Cygni is the center star, and the "west coast" of NGC 7000 is the red/dark dust around it):.
jeffjastro.blogspot.com/2014/03/xi-cygni-featured-on-spacecom.html
Dangerous: New Tour – Black Hole Hunting | Error 'n' Exploration
Finally. My trading days are over.
elite.edimod.de/?p=544
Xi Cygni and nebulosity | Astronomy.com
Astronomy.com is for anyone who wants to learn more about astronomy events, cosmology, planets, galaxies, asteroids, astrophotography, the Big Bang, black holes, comets, constellations, eclipses, exoplanets, nebulae, meteors, quasars, observing, telescopes, NASA, Hubble, space missions, stargazing, and more
www.astronomy.com/photos/picture-of-day/2014/04/xi-cygni
Deep, Low Mass Ratio Overcontact Binary Systems. XI. V1191 Cygni - Abstract - The Astronomical Journal - IOPscience
Complete CCD photometric light curves in BV(RI) c bands obtained on one night in 2009 for the short-period close-binary system V1191 Cygni are presented. A new photometric analysis with the 2003 version of the Wilson-Van Hamme code shows that V1191 Cyg is a W-type overcontact binary system and suggests that it has a high degree of overcontact (f = 68.6%) with very low mass ratio, implying that it is at the late stage of overcontact evolution. The absolute parameters of V1191 Cyg are derived using spectroscopic and photometric solutions. Combining new determined times of light minimum with others published in the literature, the period change of the binary star is investigated. A periodic variation, with a period of 26.7 years and an amplitude of 0.023 days, was discovered to be superimposed on a long-term period increase (dP/dt = +4.5(± 0.1) × 10–7 days yr–1). The cyclic period oscillation may be caused by the magnetic activity cycles of either of the components or the light-time effect due to the presence of a third body with a mass of m 3 = 0.77 M ☉ and an orbital radius of a 3 = 7.6 AU, when this body is coplanar to the orbit of the eclipsing pair. The secular orbital period increase can be interpreted as a mass transfer from the less massive component to the more massive one. With the period increases, V1191 Cyg will evolve from its present low mass ratio, high filled overcontact state to a rapidly rotating single star when its orbital angular momentum is less than three times the total spin angular momentum. V1191 Cyg is too blue for its orbital period and it is an unusual W-type overcontact system with such a low mass ratio and high fill-out overcontact configuration, which is worth monitoring continuously in the future.
iopscience.iop.org/1538-3881/142/4/124
Variability of the X-Ray P Cygni Line Profiles from Circinus X-1 near Zero Phase - Abstract - The Astrophysical Journal - IOPscience
The luminous X-ray binary Circinus X-1 has been observed twice near zero orbital phase using the High-Energy Transmission Grating Spectrometer (HETGS) on board Chandra. The source was in a high-flux state during a flare for the first observation, and it was in a low-flux state during a dip for the second. Spectra from both flux states show clear P Cygni lines, predominantly from H-like and He-like ion species. These indicate the presence of a high-velocity outflow from the Cir X-1 system, which we interpret as an equatorial accretion-disk wind, and from the blueshifted resonance absorption lines we determine outflow velocities of 200-1900 km s-1 with no clear velocity differences between the two flux states. The line strengths and profiles, however, are strongly variable both between the two observations as well as within the individual observations. We characterize this variability and suggest that it is due to both changes in the amount of absorbing material along the line of sight as well as changes in the ionization level of the wind. We also refine constraints on the accretion-disk wind model using improved plasma diagnostics such as the He-like Mg XI triplet, and we consider the possibility that the X-ray absorption features seen from superluminal jet sources can generally be explained via high-velocity outflows.
iopscience.iop.org/0004-637X/572/2/971
xi - definition of xi in English from the Oxford dictionary
The fourteenth letter of the Greek alphabet (Ξ, ξ), transliterated as .... Meaning, pronunciation and example sentences, English to English reference content.
www.oxforddictionaries.com/definition/english/xi
AccuWeather.com - Orange Supergiant Star Shines Through Hazy Nebula in Amazing Photo
Orange supergiant star, Xi Cygni, beams through the red haze of the North American Nebula's "west coast," in this stunning night sky photo recently sent in to Space.com.
m.accuweather.com/en/outdoor-articles/astronomy/orange-supergiant-star-xi-cygn/24096117
NASA - Cygnus X-1: A Stellar Mass Black Hole
Chandra reveals new details about the birth of Cygnus X-1, a famous stellar-mass black hole.
www.nasa.gov/mission_pages/chandra/multimedia/cygnusx1.html
123