Stars & Clusters
Stars & Clusters
- 78 Pins
Alpha Capricorni - optical double star. They look close together, but are nearly 600 light years apart. The image was produced by WikiSky's image cutout tool out of DSS2 (Digitized Sky Survey) data. Mona Evans, "D Is for Double Stars" www.bellaonline.c...
Dss2 Digital, Digital Sky, Wikisky Image, Lights Years, Cutout Tools, Alpha Capricorni, Double Stars, Image Cutout, 600 Lights
Spectroscopic Binary Stars. Only the motion of one of the stars is needed to deduce the existence of the binary system. (Credit: James Schombert)
Binari System, James D'Arcy, Binary Stars, Secret Boards, James Schombert, Spectroscop Binari
When the smaller star partially blocks the larger star, a primary eclipse occurs, and a secondary eclipse occurs when the smaller star is occulted, or completely blocked, by the larger star. (Credit: NASA)
Nasa, Secondary Eclipse, Larger Stars, Eclipse Variables, Smaller Stars, Binary Stars, Cluster, Primary Eclipse, Eclipse Occur
File:Light curve of binary star Kepler-16.jpg
Eclipsing Binary Star
Eclipse Binari, Binary Stars
Lecture 8: Binary Stars (DePoy)
Coronet Cluster in Corona Australis. (Credit: X-ray: NASA/ CXC/CfA/ J.Forbrich et al.; Infrared: NASA/SSC/CfA/IRAC GTO Team) X-rays from young stars & infrared light from stars & cosmic dust are combined in a false color image. The small star grouping is the Coronet Cluster. The view was produced using data from the orbiting Chandra Observatory (x-ray) and the Spitzer Space Telescope (infrared). Mona Evans, “The Starry Crowns – Corona Australis” www.bellaonline.c...
Coronet Cluster, Spaces, Young Stars, Star Formation, Spots, Night Stars, Corona Australi, Spotlight, Stars Formations
(Woah.) This image from NASA's Spitzer Space Telescope shows young stars plus diffuse emission from dust. The Corona Australis region (containing, at its heart, the Coronet cluster) is one of the nearest and most active regions of ongoing star formation.
Night stars in the sky.
Quintuplet Cluster. It's most famous star is the Pistol star, the most luminous known star in the Galaxy. On the left is the Hubble image from 1999. On the right is a new one from 2015 - quite a difference in resolving power for the fabulous space telescope.
The relation between size and temperature at the point where stars end and brown dwarfs begin (based on a figure from the publication) Image credit: P. Marenfeld & NOAO/AURA/NSF. Mona Evans, "The Smallest Star in the Universe" www.bellaonline.c...
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New cutoff for low mass stars stars versus brown dwarfs
New cutoff for stars: Astronomers found a gap between "real" and "failed" stars. The main sequence now ends at a temp of 2,100 K, radius of 8.7% of our Sun, and luminosity of 1/8000th of our Sun. #astronomy
The relative sizes of the Sun, a low mass star, a brown dwarf, Jupiter, and Earth. This is a generalized diagram; J0523 is actually a bit smaller than Jupiter. (Photo credit: NASA/JPL-Caltech/UCB)
Periodic Global, Size Comparison, Smallest Stars, Global Cataclysm, Brown Dwarfs, Dwarfs Stars, Hidden Object, Atlantean Gardens, Earth Periodic
How small can the smallest star be? What is the smallest possible size for a star? Astronomers finally have an answer to that nagging question that separates a full-blown nuclear life-giving furnace and a much less vibrant “failed star” otherwise known as a brown dwarf. To learn about this new lower limit for stars, see: http://www.fromquarkstoquasars.com/how-small-can-the-smallest-star-be/
CNN Reports: “Huge, Hidden Object In Space, Dwarf Star Or Planet Found In Our Solar System”
ATLANTEAN GARDENS: Planet X and Earth's Periodic Global Cataclysms
Planetary size comparison
Scientists Discover Smallest Known Star
Is this the smallest, faintest star? In visible light (arrowed) it's barely visible, but in infrared (inset) it's more easily seen. (Photo: CDA Portal / 2MASS/UMass/IPAC-Caltech/NASA/NSF) Mona Evans, "The Smallest Star in the Universe" www.bellaonline.c...
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The Smallest Star (via Slate/Bad Astronomy) - "Astronomers have found the smallest known star. If it were any less massive, it wouldn't even be a star!"
The Smallest Star
R Coronae Borealis type star. Artist rendering of dust cloud based on observations from the VLT. Variable star that dims erratically when it forms dusty clouds. If the dust is along our line-of-sight it eclipses the star. As the stellar winds blow the dust away, the star reappears. (Credit: ESO)
Dust Cloud, Cloud Based, Dusty Cloud
Dust Cloud Sheds Light on Stellar Brightness Phenomenon
Arches Cluster. IR image taken by the Hubble Space Telescope. The cluster is the most crowded place in the Milky Way. A sphere 4.4 light years in radius would hold the Sun & our nearest neighbor α Centauri. In the Arches Cluster a region that size would hold over 100,000 stars. (Credit: ESA, NASA)
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The Arches Cluster Hubble Image Inspires White House to Ponder Our Cosmos
This image of the Arches Cluster of young, massive stars, the densest such cluster in the universe was obtained with the NASA/ESA Hubble Space Telescope..
The triple star system Polaris (Alpha Ursae Minoris), as seen by the Hubble Space Telescope. Mona Evans, "Polaris - Facts for Kids" www.bellaonline.c...
Sequences Stars, Polaris 10, Stars Polaris, Single Stars, Maine Stars, 3 Stars System, Cepheid Variables, Polaris Abs, Fascinators Facts
The 26,000-year cycle of precession as seen from near the Earth. The current north pole star is Polaris (top). In about 8,000 years it will be the bright star Deneb (left), and in about 12,000 years, Vega (left center). The Earth's rotation is not depicted to scale – in this span of time, it should rotate over 9 million times. Mona Evans, "Ecliptic and Equinoxes" www.bellaonline.c...
Bright Stars, 12 000 Years, Earth Rotator, 26 000 Years, 12000 Years, Polaris Tops, Pole Stars, Earth 26 000, Stars Deneb
The 26,000-year cycle of precession as seen from near the Earth. The current north pole star is Polaris (top). In about 8,000 years it will be the bright star Deneb (left), and in about 12,000 years, Vega (left center). The Earth's rotation is not depicted to scale – in this span of time, it should rotate over 9 million times.
47 Tucanae, located in the constellation Tucana, is the second largest known globular cluster. Here it's shown in a digital art work by Felix Cheung. It's one of a set of screen savers based on the Southern birds constellations. Mona Evans, "Exotic Creatures of the Southern Sky" www.bellaonline.c...
Art Work, Globular Cluster, Constellations Tucana, Heavens Aviary, Felix Cheung, Digital Art, Birds Constellations, Exotic Creatures, Screens Savers
Globular cluster IC 4499 in the southern constellation Apus (Bird-of-paradise). (credit: NASA/ESA Hubble Space Telescope) The stars in this cluster formed at the same time and gravity pulls its large mass together into a spherical shape.
IC 4499: A globular cluster’s age revisited
Star cluster Westerlund 2. Hubble 25th anniversary image. Young stars flaring to life resemble an exploding shell in a fireworks display. The giant star cluster is only about two million years old, but contains some of the brightest, hottest and most massive stars ever discovered. The red dots are a rich population of forming stars that are still wrapped in their gas and dust cocoons. (Credit: NASA/ESA Hubble Space Telescope)
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NASA Unveils Celestial Fireworks as Official Image for Hubble 25th Anniversary The brilliant tapestry of young stars flaring to life resemble a glittering fireworks display in the 25th anniversary NASA Hubble Space Telescope image, released to commemorate a quarter century of exploring the solar system and beyond since its launch on April 24, 1990. “Hubble has completely transformed our view of the universe, revealing the true beauty and richness of the cosmos” said John Grunsfeld, astronaut and associate administrator of NASA’s Science Mission Directorate. “This vista of starry fireworks and glowing gas is a fitting image for our celebration of 25 years of amazing Hubble science.” The sparkling centerpiece of Hubble’s anniversary fireworks is a giant cluster of about 3,000 stars called Westerlund 2, named for Swedish astronomer Bengt Westerlund who discovered the grouping in the 1960s. The cluster resides in a raucous stellar breeding ground known as Gum 29, located 20,000 light-years away from Earth in the constellation Carina.
This undated photo provided by NASA shows an image taken by the Hubble Space Telescope showing a breeding ground for stars in the Constellation Carina, about 20,000 light years from Earth. Friday, April 24, 2015, marks the 25th anniversary of Hubble's launch. (NASA/ESA/Hubble Heritage Team/A. Nota, Westerlund 2 Science Team via AP)
Westerlund 2 — Hubble’s 25th anniversary image
GRO J1655-40, binary star system 11,000 light years away in the constellation Scorpius. It consists of a star about twice the mass of the Sun & a black hole of about seven solar masses. The artist's vision shows matter drawn from the normal star by gravity & swirling toward the black hole. A wind of material is also escaping from the black hole's accretion disk. (Illustration: M. Weiss (CXC), NASA) Mona Evans, "Scorpius the Scorpion", www.bellaonline.c...
Companion Galaxies, Black Hole, Astronomy Pictures, Stars Planetarium Astronomy, Amazing Spaces, Artists Impressions, Binary Stars, Nasa Pictures, Outer Spaces
This is an artist’s impression of a quasar. Image credit: NASA / CXC / M. Weiss / Nahks Tr’Ehnl / Nurten Filiz Ak.
nasa picture of the day | NASA Black Hole
Explanation: Binary star system GRO J1655-40 consists of a relatively normal star about twice as massive as the Sun co-orbiting with a black hole of about seven solar masses. This striking artist's vision of the exotic binary system helps visualize matter drawn from the normal star by gravity and swirling toward the black hole.
nasa picture of the day | Astronomy Picture of the Day
APOD: 2006 July 1 - Wind from a Black Hole
Butterfly Cluster (M6 / NGC 6405). Bright open star cluster in the constellation Scorpius. Its popular name reflects the butterfly shape you can see in this picture. About eighty stars have been identified, but the cluster probably has over three hundred, mostly hot blue stars. (Image Credit: N.A.Sharp, Mark Hanna, REU program/NOAO/AURA/NSF) Mona Evans, "Scorpius the Scorpion", www.bellaonline.c...
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Open star cluster M6, the Butterfly Cluster, photographed by Nigel Sharp and Mark Hanna. This image shows clearly that most brighter stars in this cluster are young blue stars but the brightest one is an orange giant (Spectral type K0-K3).
Messier 6, the Butterfly Nebula
The Butterfly Cluster, an open cluster in Scorpius
Compact center of globular cluster Messier 70 in the constellation Sagittarius. Quarters are always tight in globular clusters, where the mutual hold of gravity binds together hundreds of thousands of stars in a small region of space. (Credit: ESA Hubble & NASA) Mona Evans, “Sagittarius the Archer” www.bellaonline.c...
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Wide open space
Deep space... We're so small.
NASA/ESA Hubble Space Telescope has captured the brilliance of the compact centre of Messier 70, a globular cluster #space
Star light star bright wish I may wish I might
space space space This looks like a globular cluster
Globular Cluster M22. It contains over 100,000 stars that formed together and remain gravitationally bound. The cluster orbits the center of the Milky Way. Globular clusters are very old, close to the age of the Universe. (Credit & Copyright: Jean-Charles Cuillandre (CFHT), Hawaiian Starlight, CFHT) Mona Evans, “Sagittarius the Archer” http://www.bellaonline.com/articles/art300844.asp
Globular Cluster M22. It contains over 100,000 stars that formed together and remain gravitationally bound. The cluster orbits the center of the Milky Way. Globular clusters are very old, close to the age of the Universe. (Credit & Copyright: Jean-Charles Cuillandre (CFHT), Hawaiian Starlight, CFHT) Mona Evans, “Sagittarius the Archer” www.bellaonline.c...
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Globular Cluster M22. It contains over 100,000 stars that formed together and remain gravitationally bound. The cluster orbits the center of the Milky Way. Globular clusters are very old, close to the age of the Universe. (Credit & Copyright: Jean-Charles Cuillandre (CFHT), Hawaiian Starlight, CFHT) Mona Evans, “Sagittarius the Archer”
APOD: 2005 June 27 - Globular Cluster M22 from CFHT
Light curve of binary star Kepler-16. (Image: NASA) This an example of a a type of variable star known as an eclipsing variable. Algol is the classic example of such a star, but Lambda Tauri is also seen nearly edge on like this. Lambda Tauri is a triple system and a third star orbits the binary. Mona Evans, "Taurus the Bull" www.bellaonline.c...
Secondary Eclipse, Nasa, Larger Stars, Eclipse Variables, Smaller Stars, Binary Stars, Cluster, Primary Eclipse, Eclipse Occur
File:Light curve of binary star Kepler-16.jpg - Wikimedia Commons
A mere 600 light-years away, M44 is one of the closest star clusters to our solar system. Also known as the Praesepe or the Beehive cluster its stars are young though, about 600 million years old compared to our Sun's 4.5 billion years. Based on similar ages and motion through space, M44 and the even closer Hyades star cluster in Taurus are thought to have been born together in the same large molecular cloud
M44: The Beehive Cluster (Image Credit & Copyright: Bob Franke)
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600 light-years away, the Beehive Cluster is one of the closest star clusters to our solar system. Its stars are young, about 600 million years old compared to our Sun's 4.5 billion years. M44 and the even closer Hyades star cluster in Taurus seem to have been born together in the same large molecular cloud. An open cluster spanning some 15 light-years, it holds 1,000 stars or so and covers about 1.5 degrees on the sky in the constellation Cancer. (Image Credit & Copyright: Bob Franke)
NASA’s Astronomy Picture Of The Day: M44: The Beehive Cluster - #space #astronomy #science #nature #photography
APOD: 2014 February 22 - M44: The Beehive Cluster
Comparing the sizes of the planets, then comparing bigger and bigger and yet bigger stars. Mona Evans"How Big Are the Biggest Stars" www.bellaonline.c...
Cani Majori, Artworks Inspiration, Bigger Stars, Biggest Stars, Compare Bigger, Evans How Big, 2014 Updates, Free Encyclopedias, Comic Artworks
Comparison of planets and stars (sheet by sheet) (Oct 2014 update) - VY Canis Majoris - Wikipedia, the free encyclopedia
List of largest known stars - Wikipedia, the free encyclopedia
Hypergiant Size comparison between the Sun and VY Canis Majoris, a hypergiant which is one of the largest known stars. Mona Evans"How Big Are the Biggest Stars" www.bellaonline.c...
Spaces, Size Comparison, Cani Majori, Biggest Stars, Vy Cani, Canis Majoris, Mr. Big, The Dots, Sun
Just think, our sun is the dot on the lower left hand side. You may need to look inside the box to see it.
Space’s 10 Most Fascinating Wonders
Hypergiant - Wikipedia, the free encyclopedia
A STAR'S BIRTH AND DEATH