STAR SYTEMS AND GALAXIES
... • Looks hazy to us beause the stars are so bright. • There are three main kinds of galaxies, spiral, elliptical, and irregular. • Spiral galaxies have a pinwheel shape. • They have arms that spiral outward. • The Milky Way is a spiral galaxy. We cannot see the center because it is hidden by stars an ...
... • Looks hazy to us beause the stars are so bright. • There are three main kinds of galaxies, spiral, elliptical, and irregular. • Spiral galaxies have a pinwheel shape. • They have arms that spiral outward. • The Milky Way is a spiral galaxy. We cannot see the center because it is hidden by stars an ...
KEY Unit 10‐11 Test Review: Characteristics of the Universe
... than those in galaxies closer to the Earth. Astronomers theorize this is occurring because distant galaxies are moving _AWAY__ from Earth faster than galaxies that are nearby. 10. Betelgeuse is one of the brightest stars in the night sky even though it is 640 LY from Earth. Barnard‛s Star, on the ...
... than those in galaxies closer to the Earth. Astronomers theorize this is occurring because distant galaxies are moving _AWAY__ from Earth faster than galaxies that are nearby. 10. Betelgeuse is one of the brightest stars in the night sky even though it is 640 LY from Earth. Barnard‛s Star, on the ...
4B-Astronomer-Notes
... He made important contributions by devising the most precise instruments available before the invention of the telescope for observing the heavens He charted over 1000 stars in the sky. His observations of planetary motion, particularly that of Mars, provided the crucial data for later astronomers l ...
... He made important contributions by devising the most precise instruments available before the invention of the telescope for observing the heavens He charted over 1000 stars in the sky. His observations of planetary motion, particularly that of Mars, provided the crucial data for later astronomers l ...
Review 1 - AST 1002 - FSU Physics Department
... Assuming Viking 1 is 90 AU away from Earth, how long would a radio signal from it take to reach us? ...
... Assuming Viking 1 is 90 AU away from Earth, how long would a radio signal from it take to reach us? ...
Structure of the Universe
... massive stars, but rather a white dwarf that accretes mass from a companion until it exceeds the Chandrasekhar limit (1.4 Msun) ...
... massive stars, but rather a white dwarf that accretes mass from a companion until it exceeds the Chandrasekhar limit (1.4 Msun) ...
The following two images are taken with the Allegheny Multifilter
... The following two images are taken with the Allegheny Multifilter Astrometric Camera (AMAC). The guide star for the Gravity Probe B space craft, IM Peg, is shown in each image. The first image is taken without a neutral density (ND) filter. The spike passing vertically through the image of the 5th m ...
... The following two images are taken with the Allegheny Multifilter Astrometric Camera (AMAC). The guide star for the Gravity Probe B space craft, IM Peg, is shown in each image. The first image is taken without a neutral density (ND) filter. The spike passing vertically through the image of the 5th m ...
The Big Bang Theory
... • The universe has grown from the size of an atom to larger than the size a grapefruit • E=mc2 • energy froze into matter according to Albert Einstein’s equation. • This basically says that like snowflakes freezing, energy forms matter into clumps that today we call protons, neutrons and electrons. ...
... • The universe has grown from the size of an atom to larger than the size a grapefruit • E=mc2 • energy froze into matter according to Albert Einstein’s equation. • This basically says that like snowflakes freezing, energy forms matter into clumps that today we call protons, neutrons and electrons. ...
Historical overview
... If you give a wrong answer or comment during class (which you thought was right): even better!! ...
... If you give a wrong answer or comment during class (which you thought was right): even better!! ...
Stars and Galaxies
... It may take several years for a spacecraft to reach other planets in our solar system. It may take several centuries to reach other stars in our galaxy. ...
... It may take several years for a spacecraft to reach other planets in our solar system. It may take several centuries to reach other stars in our galaxy. ...
Universe and Galaxy Short Study Guide
... Black holes in the centers of giant galaxies—some more than one billion solar masses—had enough infalling gas to once blaze as quasars. The final mass of a black hole is not primordial, but instead is determined during the galaxy formation process. This shows that there is a close relationship betwe ...
... Black holes in the centers of giant galaxies—some more than one billion solar masses—had enough infalling gas to once blaze as quasars. The final mass of a black hole is not primordial, but instead is determined during the galaxy formation process. This shows that there is a close relationship betwe ...
Document
... 6. Speed of light and stellar distances • The speed of light is a universal constant (c) of 300,000 km/s2 • We observe stars millions/billions of light-years away • A light-year is the distance that light travels in 1 year – the light we see today from a star 500 light years away is 500 years old • ...
... 6. Speed of light and stellar distances • The speed of light is a universal constant (c) of 300,000 km/s2 • We observe stars millions/billions of light-years away • A light-year is the distance that light travels in 1 year – the light we see today from a star 500 light years away is 500 years old • ...
18-3 constellations RG
... 13. When a star or galaxy moves quickly away from an observer, the light it emits appears redder than it usually would, this effect is called _____________________________________________. 14. When a star or galaxy moves quickly toward an observer, the light it emits appears bluer than it usually w ...
... 13. When a star or galaxy moves quickly away from an observer, the light it emits appears redder than it usually would, this effect is called _____________________________________________. 14. When a star or galaxy moves quickly toward an observer, the light it emits appears bluer than it usually w ...
Slide 1
... accretion disk indicating BH or WH in center--a quadrillion solar masses!) The Pisces-Cetus Complex: may include 400 rich (and lots of poor) clusters. Brent Tully. Is the Universe homogeneous? God's Bubble Bath: Galaxy superclusters seem to from in bubble structures and filaments with Voids 100-500 ...
... accretion disk indicating BH or WH in center--a quadrillion solar masses!) The Pisces-Cetus Complex: may include 400 rich (and lots of poor) clusters. Brent Tully. Is the Universe homogeneous? God's Bubble Bath: Galaxy superclusters seem to from in bubble structures and filaments with Voids 100-500 ...
Chapter 27 Quasars, Active Galaxies, and Gamma
... • Early radio telescopes found radio emission from stars, nebulae, and some galaxies. • There were also point-like, or star-like, radio sources which varied rapidly these are the `quasi-stellar’ radio sources or quasars. • In visible light quasars appear as points, like stars. ...
... • Early radio telescopes found radio emission from stars, nebulae, and some galaxies. • There were also point-like, or star-like, radio sources which varied rapidly these are the `quasi-stellar’ radio sources or quasars. • In visible light quasars appear as points, like stars. ...
Early Star-Forming Galaxies
... Rodighiero used Herschel ’s far-infrared camera to look for galaxies hidden from visible-light observations because of their intervening dust. This allowed the astronomers to assemble a more complete picture of star birth than ever before. The team targeted two well-known regions of the sky that ha ...
... Rodighiero used Herschel ’s far-infrared camera to look for galaxies hidden from visible-light observations because of their intervening dust. This allowed the astronomers to assemble a more complete picture of star birth than ever before. The team targeted two well-known regions of the sky that ha ...
Miss Nevoral - Ms. Nevoral`s site
... ideas about a theory may change if new evidence arises or there is a breakthrough with technology, etc. Therefore, we can not say that a theory is a fact because more evidence may be found to change that theory. 3. Define celestial bodies: General term for all objects in the sky Sun, moon, planets ...
... ideas about a theory may change if new evidence arises or there is a breakthrough with technology, etc. Therefore, we can not say that a theory is a fact because more evidence may be found to change that theory. 3. Define celestial bodies: General term for all objects in the sky Sun, moon, planets ...
Galaxies and Stars
... Galaxy – a large system of stars held together by the same gravitational pull and separated from other large systems. ...
... Galaxy – a large system of stars held together by the same gravitational pull and separated from other large systems. ...
History of Astronomy Scavenger Hunt
... Who am I? Stephen Hawking 24. I developed the laws of planetary motion and realized the orbits were elliptical. Who am I? Johannes Kepler 25. I showed that other galaxies existed and observed that the universe is expanding because the other galaxies are all moving away from the Milky Way. Who am I? ...
... Who am I? Stephen Hawking 24. I developed the laws of planetary motion and realized the orbits were elliptical. Who am I? Johannes Kepler 25. I showed that other galaxies existed and observed that the universe is expanding because the other galaxies are all moving away from the Milky Way. Who am I? ...
Hubble Deep Field
The Hubble Deep Field (HDF) is an image of a small region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. It covers an area 2.5 arcminutes across, about one 24-millionth of the whole sky, which is equivalent in angular size to a 65 mm tennis ball at a distance of 100 metres. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field and Planetary Camera 2 over ten consecutive days between December 18 and December 28, 1995.The field is so small that only a few foreground stars in the Milky Way lie within it; thus, almost all of the 3,000 objects in the image are galaxies, some of which are among the youngest and most distant known. By revealing such large numbers of very young galaxies, the HDF has become a landmark image in the study of the early universe, with the associated scientific paper having received over 900 citations by the end of 2014.Three years after the HDF observations were taken, a region in the south celestial hemisphere was imaged in a similar way and named the Hubble Deep Field South. The similarities between the two regions strengthened the belief that the universe is uniform over large scales and that the Earth occupies a typical region in the Universe (the cosmological principle). A wider but shallower survey was also made as part of the Great Observatories Origins Deep Survey. In 2004 a deeper image, known as the Hubble Ultra-Deep Field (HUDF), was constructed from a few months of light exposure. The HUDF image was at the time the most sensitive astronomical image ever made at visible wavelengths, and it remained so until the Hubble Extreme Deep Field (XDF) was released in 2012.