
Semester #1 – GeoScience Review Guide – Final Exam Scale
... 1. What is a light-year? How big is it in kilometers? 2. In your scale model of the Solar System, the scale was 1 cm = 10,000,000,000 km. Jupiter is 778,000,000 km from the sun. On your scale model, how many cm was Jupiter from the sun? 3. Is this a true or false statement? 104 = 10 x 10 x 10 x 10 4 ...
... 1. What is a light-year? How big is it in kilometers? 2. In your scale model of the Solar System, the scale was 1 cm = 10,000,000,000 km. Jupiter is 778,000,000 km from the sun. On your scale model, how many cm was Jupiter from the sun? 3. Is this a true or false statement? 104 = 10 x 10 x 10 x 10 4 ...
September Evening Skies
... in binoculars as a 6th-mag. "star" in Aquarius, is plotted as a "+" for mid-September 2005. At chart time 7 objects of first magnitude or brighter are visible. In order of brightness they are: Arcturus, Vega, Capella, Altair, Antares, Fomalhaut, and Deneb. Our usual monthly maps are designed for sta ...
... in binoculars as a 6th-mag. "star" in Aquarius, is plotted as a "+" for mid-September 2005. At chart time 7 objects of first magnitude or brighter are visible. In order of brightness they are: Arcturus, Vega, Capella, Altair, Antares, Fomalhaut, and Deneb. Our usual monthly maps are designed for sta ...
Chapter 20. Galaxies
... As you worked out in one of your problem set questions (and review the answer sheet if you didn’t get it right!), if we observe v = constant, instead of a falling v, we can infer (assuming that laws of gravity still hold even over the great distances of a galaxy’s radius) that Mr must be growing wit ...
... As you worked out in one of your problem set questions (and review the answer sheet if you didn’t get it right!), if we observe v = constant, instead of a falling v, we can infer (assuming that laws of gravity still hold even over the great distances of a galaxy’s radius) that Mr must be growing wit ...
Stars and Constellations Power Point
... •A black hole is a region of spacetime from which nothing, not even light, can escape. •Black holes of stellar mass are expected to form when very massive stars collapse at the end of their life cycle. •After a black hole has formed it can continue to grow by absorbing mass from its surroundings. •T ...
... •A black hole is a region of spacetime from which nothing, not even light, can escape. •Black holes of stellar mass are expected to form when very massive stars collapse at the end of their life cycle. •After a black hole has formed it can continue to grow by absorbing mass from its surroundings. •T ...
PH109 Exploring the Uiverse, Test #4, Spring, 1999
... b) the result of stars too massive for neutrons to support them c) condensed molecular clouds before star formation takes place d) small dark spot seen on the surface of the Sun 14. It is unlikely that astronauts will ever pass through black holes because a) they do not really exist b) they are too ...
... b) the result of stars too massive for neutrons to support them c) condensed molecular clouds before star formation takes place d) small dark spot seen on the surface of the Sun 14. It is unlikely that astronauts will ever pass through black holes because a) they do not really exist b) they are too ...
flare swg usa
... filament as seen with Spitzer (24-8-3.5) defined by the large beam of Herschel observations. Á ...
... filament as seen with Spitzer (24-8-3.5) defined by the large beam of Herschel observations. Á ...
August 2015 - Shasta Astronomy Club
... what the planet’s made of; water has a density of 1 gram per cc, but iron is 8. Rock is 2–3. If the planet has the same stuff in it as Earth does, it’ll be more massive; four timesEarth’s mass*. In that case, its surface gravity would be 1.6 times Earth. If you weighed 100 pounds on Earth, you’d wei ...
... what the planet’s made of; water has a density of 1 gram per cc, but iron is 8. Rock is 2–3. If the planet has the same stuff in it as Earth does, it’ll be more massive; four timesEarth’s mass*. In that case, its surface gravity would be 1.6 times Earth. If you weighed 100 pounds on Earth, you’d wei ...
Planetary Nebula NGC 7027 Hubble Space Telescope
... NGC 7027 i s on e of the smallestobjects of its kind to be imaged by the Hubble telescope. However, the region seen h ere is approximately 14,000 times the average distance between Earth and the sun. THE INFRARED AND VISIBLE LIGHT VIEW – This visible and infrared light picture of NGC 7027 (on the ri ...
... NGC 7027 i s on e of the smallestobjects of its kind to be imaged by the Hubble telescope. However, the region seen h ere is approximately 14,000 times the average distance between Earth and the sun. THE INFRARED AND VISIBLE LIGHT VIEW – This visible and infrared light picture of NGC 7027 (on the ri ...
Volcanoes and Igneous Activity Earth - Chapter 4
... • Strong magnetic field • First one discovered in early 1970s • Pulsar (pulsating radio source) • Found in the Crab nebula (remnant of an A.D. 1054 supernova) ...
... • Strong magnetic field • First one discovered in early 1970s • Pulsar (pulsating radio source) • Found in the Crab nebula (remnant of an A.D. 1054 supernova) ...
Astronomy Study Guide
... 35. Complete the table about the measurement of a star’s brightness. Brightness of Stars Measurement of Brightness ...
... 35. Complete the table about the measurement of a star’s brightness. Brightness of Stars Measurement of Brightness ...
Origins of the Universe
... out of the explosion, right? • There were steps after the Big Bang • First, energy cooled to form matter, then the first stars formed • Eventually galaxies formed • We are a second or third generation star Timeline on p. 375 ...
... out of the explosion, right? • There were steps after the Big Bang • First, energy cooled to form matter, then the first stars formed • Eventually galaxies formed • We are a second or third generation star Timeline on p. 375 ...
The Extragalactic Group of MPE and USM
... of Massive Galaxies in the FORS Deep and GOODS South fields • Study evolution of galaxies with broadband deep U to K surveys. • LFs, Mass Functions, SFRs do not require spectroscopy but can be derived with accurate photometric redshifts. • Advantage of photo z: no color selection bias, fainter lumin ...
... of Massive Galaxies in the FORS Deep and GOODS South fields • Study evolution of galaxies with broadband deep U to K surveys. • LFs, Mass Functions, SFRs do not require spectroscopy but can be derived with accurate photometric redshifts. • Advantage of photo z: no color selection bias, fainter lumin ...
A Sense of Scale - Young Scientists Journal
... a cluster as being a group of galaxies, are equivalent to a group of clusters of galaxies. These form the largest structures known to us and the largest so far is the Great Sloan Wall (essentially a wall of galaxies, named after the Sloan Digital Sky Survey which discovered it) spanning 1.37 billion ...
... a cluster as being a group of galaxies, are equivalent to a group of clusters of galaxies. These form the largest structures known to us and the largest so far is the Great Sloan Wall (essentially a wall of galaxies, named after the Sloan Digital Sky Survey which discovered it) spanning 1.37 billion ...
DTU 8e Chap 17 Quasars and Other Active Galaxies
... radio galaxies, double-radio sources, and BL Lacertae objects. A quasar, or quasi-stellar radio source, is an object that looks like a star but has a huge redshift. This redshift corresponds to a distance of billions of light-years from Earth, according to the Hubble law. To be seen from Earth, a qu ...
... radio galaxies, double-radio sources, and BL Lacertae objects. A quasar, or quasi-stellar radio source, is an object that looks like a star but has a huge redshift. This redshift corresponds to a distance of billions of light-years from Earth, according to the Hubble law. To be seen from Earth, a qu ...
ASTR 2020 Space Astronomy Homework #3 Due Tuesday, 4
... the Earth-Sun mean separation (the Astronomical Unit), subtends 1 arc-second (assuming that the Earth-Sun separation is at right angles to the line connecting the Sun to the distant object). [a] How large is a parsec in centimeters? (Don’t just look it up ….Please show a diagram with the various par ...
... the Earth-Sun mean separation (the Astronomical Unit), subtends 1 arc-second (assuming that the Earth-Sun separation is at right angles to the line connecting the Sun to the distant object). [a] How large is a parsec in centimeters? (Don’t just look it up ….Please show a diagram with the various par ...
WEB RESOURCES FOR PHYS 4D
... to death and includes detailed pictures and a movie. The extensive library of links for each piece provides further information. ...
... to death and includes detailed pictures and a movie. The extensive library of links for each piece provides further information. ...
Full Press Release - The Open University
... stars in the dense gas itself, and emits infrared light. The formation of a new generation of stars is now taking place within this compressed gas in these outer shell structures. The AKARI data reveals for the first time, the detailed distribution of this swept out gas and dust over the entire nebu ...
... stars in the dense gas itself, and emits infrared light. The formation of a new generation of stars is now taking place within this compressed gas in these outer shell structures. The AKARI data reveals for the first time, the detailed distribution of this swept out gas and dust over the entire nebu ...
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.