Galaxies - cloudfront.net
... _____ 1. There are a total of about 5 million galaxies in the universe. _____ 2. Star clusters contain greater numbers of stars than galaxies do. _____ 3. The Pleiades, or Seven Sisters, is an example of a star cluster. _____ 4. Globular clusters have a lot of dust in addition to stars. _____ 5. The ...
... _____ 1. There are a total of about 5 million galaxies in the universe. _____ 2. Star clusters contain greater numbers of stars than galaxies do. _____ 3. The Pleiades, or Seven Sisters, is an example of a star cluster. _____ 4. Globular clusters have a lot of dust in addition to stars. _____ 5. The ...
Properties of Stars: The H
... radiates increases by 24 = 2x2x2x2=16 (!) • Think about the Sun and Betelguese: ...
... radiates increases by 24 = 2x2x2x2=16 (!) • Think about the Sun and Betelguese: ...
FREE Sample Here
... One of the things that many of us who teach general education science courses believe we do is to help students learn to critically observe pictures and learn to read graphs and charts. Yet, few of us test this skill. Several of the exam questions in the test bank make use of pictures, tables, and g ...
... One of the things that many of us who teach general education science courses believe we do is to help students learn to critically observe pictures and learn to read graphs and charts. Yet, few of us test this skill. Several of the exam questions in the test bank make use of pictures, tables, and g ...
Astro 210 Lecture 4 Sept. 4, 2013 Announcements: • PS 1 available
... • difference of 5 mag is factor of 100 in flux: m2 − m1 = −2.5 log10 F2/F1 (definition of mag scale!) • mag units: dimensionless! (but usually say “mag”) because mags are logs of ratio o f two dimensionful fluxes with physical units like W/m2 ...
... • difference of 5 mag is factor of 100 in flux: m2 − m1 = −2.5 log10 F2/F1 (definition of mag scale!) • mag units: dimensionless! (but usually say “mag”) because mags are logs of ratio o f two dimensionful fluxes with physical units like W/m2 ...
docx - STAO
... The effects of temperature and brightness may be discussed. Betelgeuse is 15 times bigger (in radius) than Rigel and it is closer by more than 100 ly. Why is Rigel brighter? The explanation is that Betelgeuse is a red supergiant star that has evolved off the main sequence. This means that it has bur ...
... The effects of temperature and brightness may be discussed. Betelgeuse is 15 times bigger (in radius) than Rigel and it is closer by more than 100 ly. Why is Rigel brighter? The explanation is that Betelgeuse is a red supergiant star that has evolved off the main sequence. This means that it has bur ...
every star in the cluster.
... This is just one relatively brief stage on the way to stellar demise. The globular cluster in the figure just above has a lot of red giants, continually forming from evolving stars near the turnoff. But there were originally many stars that were even more massive, that became red giants for a time, ...
... This is just one relatively brief stage on the way to stellar demise. The globular cluster in the figure just above has a lot of red giants, continually forming from evolving stars near the turnoff. But there were originally many stars that were even more massive, that became red giants for a time, ...
Animals in “Light, Energy, and the EM Spectrum” Comic
... And don’t forget the Hunting Dogs, Canes Venatici. Located about a third of the way from the end of the Big Dipper's handle and below it, these dogs were placed in the sky to assist Boötes, the Bear Driver, in his daily task of pursuing the Big Bear (Ursa Major) around the pole of the heavens. Dolph ...
... And don’t forget the Hunting Dogs, Canes Venatici. Located about a third of the way from the end of the Big Dipper's handle and below it, these dogs were placed in the sky to assist Boötes, the Bear Driver, in his daily task of pursuing the Big Bear (Ursa Major) around the pole of the heavens. Dolph ...
Distance, Size, and Temperature of a Star
... Because blue stars are large, and compact, they burn their fuel quickly, which gives them a very high temperature. These stars often run out of fuel in only 10,000 - 100,000 years. A blue giant is very bright. Like a lighthouse, they shine across a great distance. Even though blue giant stars are ra ...
... Because blue stars are large, and compact, they burn their fuel quickly, which gives them a very high temperature. These stars often run out of fuel in only 10,000 - 100,000 years. A blue giant is very bright. Like a lighthouse, they shine across a great distance. Even though blue giant stars are ra ...
Friday, January 27, 2017 First exam a week from today. Review
... Tabetha’s star, discovered by Tabetha Boyajian a little over a year ago. A series of dips in the luminosity suggested that some irregular structure with 100 times the area of the Earth was orbiting the star. Some suggested an alien structure. Bunk (no heat signal), but still not well explained with ...
... Tabetha’s star, discovered by Tabetha Boyajian a little over a year ago. A series of dips in the luminosity suggested that some irregular structure with 100 times the area of the Earth was orbiting the star. Some suggested an alien structure. Bunk (no heat signal), but still not well explained with ...
Part B
... • Extremely rare (a few per galaxy per million years). They are the most luminous electromagnetic events known to occur in the Universe. • First detected in 1967 by the Vela satellites, • Redshifts clarified their distance and combined with their luminosity connected them to the deaths of massive st ...
... • Extremely rare (a few per galaxy per million years). They are the most luminous electromagnetic events known to occur in the Universe. • First detected in 1967 by the Vela satellites, • Redshifts clarified their distance and combined with their luminosity connected them to the deaths of massive st ...
Celestial Sphere - Otterbein University
... the shadow of another • Solar eclipse: sun hidden by the moon • Lunar eclipse: moon in earth’s shadow (sun hidden from moon by earth) • Also: eclipses of Jupiter’s moons, etc. • Most spectacular because moon and sun appear to be the same size from earth ...
... the shadow of another • Solar eclipse: sun hidden by the moon • Lunar eclipse: moon in earth’s shadow (sun hidden from moon by earth) • Also: eclipses of Jupiter’s moons, etc. • Most spectacular because moon and sun appear to be the same size from earth ...
The Life of a Star
... throws its outer layers into space, forming a planetary nebula – This leaves behind the hot dense core of the red giant. – The remaining core is called a white dwarf. Over time, the white dwarf cools off and becomes a black dwarf. Planetary Nebula: A collection of gas and dust that was formed during ...
... throws its outer layers into space, forming a planetary nebula – This leaves behind the hot dense core of the red giant. – The remaining core is called a white dwarf. Over time, the white dwarf cools off and becomes a black dwarf. Planetary Nebula: A collection of gas and dust that was formed during ...
Astronomy Webquest Part 1: Life of Stars: Go to http://www.odec.ca
... 8. After a supernova, a ___________________________ remains unless the star was dense enough. If the star was extremely dense, a ____________________ forms. Part 2: Analyzing Stars with the H-R Diagram: Go to http://sunshine.chpc.utah.edu/labs/star_life/hr_app.html and answer these questions. 1. If ...
... 8. After a supernova, a ___________________________ remains unless the star was dense enough. If the star was extremely dense, a ____________________ forms. Part 2: Analyzing Stars with the H-R Diagram: Go to http://sunshine.chpc.utah.edu/labs/star_life/hr_app.html and answer these questions. 1. If ...
AY1 Homework for Quiz 2: Spring 2017
... AY1 Homework for Quiz 2: Spring 2017 Erg=CGS unit of energy=gram⋅cm2/second2; E=mc2 in units of ergs if “m” is in grams and “c”=3x1010 cm/sec; ...
... AY1 Homework for Quiz 2: Spring 2017 Erg=CGS unit of energy=gram⋅cm2/second2; E=mc2 in units of ergs if “m” is in grams and “c”=3x1010 cm/sec; ...
chapter 2 - Test Bank 1
... One of the things that many of us who teach general education science courses believe we do is to help students learn to critically observe pictures and learn to read graphs and charts. Yet, few of us test this skill. Several of the exam questions in the test bank make use of pictures, tables, and ...
... One of the things that many of us who teach general education science courses believe we do is to help students learn to critically observe pictures and learn to read graphs and charts. Yet, few of us test this skill. Several of the exam questions in the test bank make use of pictures, tables, and ...
1 Ay 124 Winter 2014 – HOMEWORK #1
... Horrible things astronomers have to do in real life #1: Joe Bloggs has discovered a pulsar at α = 19h 59m 37s ,δ = +20◦ 400 (epoch 2000), which has proper motion µα = −0.00114s y−1 µδ = −0.026” y−1 and a parallax of 0.0007 arcsec. It has a companion star of mV = 19.0, whose heliocentric radial veloc ...
... Horrible things astronomers have to do in real life #1: Joe Bloggs has discovered a pulsar at α = 19h 59m 37s ,δ = +20◦ 400 (epoch 2000), which has proper motion µα = −0.00114s y−1 µδ = −0.026” y−1 and a parallax of 0.0007 arcsec. It has a companion star of mV = 19.0, whose heliocentric radial veloc ...
Stars - Mrs. Tosh`s class
... The entire sky is lit up for weeks. The temperature can be more than 100 billion degrees. The iron atoms fuse into uranium. ...
... The entire sky is lit up for weeks. The temperature can be more than 100 billion degrees. The iron atoms fuse into uranium. ...
Ursa Major
Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.