Introduction to Astronomy
... “We understand the possibility of determining [celestial bodies’] shapes, their distances, their sizes and motions, whereas never, by any means, will we be able to study their chemical composition. --Auguste Comte (philosopher), 1835 ...
... “We understand the possibility of determining [celestial bodies’] shapes, their distances, their sizes and motions, whereas never, by any means, will we be able to study their chemical composition. --Auguste Comte (philosopher), 1835 ...
Properties of Stars in general
... Blue stars – very hot ~ 20,000K White stars - hot ~ 10,000k Sun-like stars – yellow ~ 6,000K Orange stars ~ 4500k Red stars ~ 3000K Temperature has a major effect on the spectral lines seen in the atmosphere of a star ...
... Blue stars – very hot ~ 20,000K White stars - hot ~ 10,000k Sun-like stars – yellow ~ 6,000K Orange stars ~ 4500k Red stars ~ 3000K Temperature has a major effect on the spectral lines seen in the atmosphere of a star ...
HR-Diagram
... This begins the moment Hydrogen fusion begins The more massive the star, the more nuclear fusion takes place to produce energy The mass of the star determines the place it lies on the main sequence. Larger stars die quicker than smaller stars because it uses its fuel quicker Large- live a few millio ...
... This begins the moment Hydrogen fusion begins The more massive the star, the more nuclear fusion takes place to produce energy The mass of the star determines the place it lies on the main sequence. Larger stars die quicker than smaller stars because it uses its fuel quicker Large- live a few millio ...
Branches of Earth Science Tools Used to Study Stars Constellations
... o SPECTRUM: the band of colors that forms as light passes through a prism o Used to see if galaxies are moving away or toward the earth Telescopes: device that makes distant objects appear closer Types of Telescopes o Optical o Radio o X-Ray o U-V o Infrared ...
... o SPECTRUM: the band of colors that forms as light passes through a prism o Used to see if galaxies are moving away or toward the earth Telescopes: device that makes distant objects appear closer Types of Telescopes o Optical o Radio o X-Ray o U-V o Infrared ...
Ch2a
... The Elevation of the North Pole Star The north pole star is always at an elevation, or altitude, a, above the northern horizon, that is equal to the latitude, of the observer. Circumpolar stars are stars which are always in view. They never set below the horizon. All stars with declinations ...
... The Elevation of the North Pole Star The north pole star is always at an elevation, or altitude, a, above the northern horizon, that is equal to the latitude, of the observer. Circumpolar stars are stars which are always in view. They never set below the horizon. All stars with declinations ...
Phobos
... Mercury: pulls out to its greatest western elongation of 27.7o from the Sun (about the maximum ever possible) on the 22nd. This makes for a superb apparition for observers at midsouthern latitudes, but in our location, the +0.1 magnitude planet climbs just 5o high about 30 minutes before sunrise and ...
... Mercury: pulls out to its greatest western elongation of 27.7o from the Sun (about the maximum ever possible) on the 22nd. This makes for a superb apparition for observers at midsouthern latitudes, but in our location, the +0.1 magnitude planet climbs just 5o high about 30 minutes before sunrise and ...
Bellringer - Madison County Schools
... your calculator without the use of Scientific Notation. A light-year is a unit of DISTANCE, not time. You could also measure distance on Earth in terms of time. For example, if it takes you one hour to ride your bike to the mall, you could say the mall is “one bicycle-hour” ...
... your calculator without the use of Scientific Notation. A light-year is a unit of DISTANCE, not time. You could also measure distance on Earth in terms of time. For example, if it takes you one hour to ride your bike to the mall, you could say the mall is “one bicycle-hour” ...
1. Luminosity is another word for the vocabulary word ______. 2. If
... 1. Luminosity is another word for the vocabulary word _________. 2. If two stars are different colors, we can infer that they have different a. chemical compositions c. shapes b. masses d. temperature 3. Which magnitude is brightest? a. -2 c. 4 b. -4 4. The dimmest class of star is the a. O ...
... 1. Luminosity is another word for the vocabulary word _________. 2. If two stars are different colors, we can infer that they have different a. chemical compositions c. shapes b. masses d. temperature 3. Which magnitude is brightest? a. -2 c. 4 b. -4 4. The dimmest class of star is the a. O ...
Constants and Equations
... a) AM CVn stars are binary systems with an orbital period of less than 65 minutes. b) AM CVn stars may produce a type II supernova after the white dwarf reaches a critical mass. c) AM CVn stars are sources of gravitational waves. d) AM CVn stars are binary systems where a white dwarf accretes mass f ...
... a) AM CVn stars are binary systems with an orbital period of less than 65 minutes. b) AM CVn stars may produce a type II supernova after the white dwarf reaches a critical mass. c) AM CVn stars are sources of gravitational waves. d) AM CVn stars are binary systems where a white dwarf accretes mass f ...
NAME ______ PERIOD ______ DATE_________ OGT Practice
... NAME _____________ PERIOD _______ DATE_________ OGT Practice QUIZ #8 ...
... NAME _____________ PERIOD _______ DATE_________ OGT Practice QUIZ #8 ...
Introduction to Stars: Their Properties
... Define brightness (see text), apparent magnitude, absolute magnitude. ...
... Define brightness (see text), apparent magnitude, absolute magnitude. ...
exploring plantetary systems 2017 study guide
... 23.The positions of the constellations appear to change throughout the year because _____EARTH’S REVOLUTION AROUND THE SUN 24. About 90 percent of all stars are ____MAIN SEQUENCE__ stars. 25. The hottest stars in space are _______________BLUE______ in color. 26.The Sun produces energy by fusing hydr ...
... 23.The positions of the constellations appear to change throughout the year because _____EARTH’S REVOLUTION AROUND THE SUN 24. About 90 percent of all stars are ____MAIN SEQUENCE__ stars. 25. The hottest stars in space are _______________BLUE______ in color. 26.The Sun produces energy by fusing hydr ...
Classification_of_Stars_By_Luminosity
... brightness of the stars in a catalogue listing 850 stars. ...
... brightness of the stars in a catalogue listing 850 stars. ...
PLEIADES - ISILIMELA - Communicating Astronomy With The Public
... Monoxide, Hydrogen floride, water, Nitrogen, Argon, Oxygen, Hdrogen sulfide, Sulfide, Sulfa dioxide, Helium ...
... Monoxide, Hydrogen floride, water, Nitrogen, Argon, Oxygen, Hdrogen sulfide, Sulfide, Sulfa dioxide, Helium ...
25drake3s
... The Drake Equation N=R* X fp X ne X fl X fi X fc X fL N = The number of civilizations in the galaxy R* = Number of stars in the galaxy fp = Fraction of stars with planets ne = Average number of suitable planets per star fl = Fraction of suitable planets on which life ...
... The Drake Equation N=R* X fp X ne X fl X fi X fc X fL N = The number of civilizations in the galaxy R* = Number of stars in the galaxy fp = Fraction of stars with planets ne = Average number of suitable planets per star fl = Fraction of suitable planets on which life ...
Star Formation/Llfe Cycle Notes
... d. Center of protostar gets dense enough and therefore hot enough (3000K+) to become luminous, however not visible due to exterior of gas and dust surrounding it. 3) Phophids- YSO’s starting to disk a. start to get charged particles 4) Early star- Does a stutter step with nuclear fusion which blows ...
... d. Center of protostar gets dense enough and therefore hot enough (3000K+) to become luminous, however not visible due to exterior of gas and dust surrounding it. 3) Phophids- YSO’s starting to disk a. start to get charged particles 4) Early star- Does a stutter step with nuclear fusion which blows ...
word document - FacStaff Home Page for CBU
... _____ e) The sun will probably go supernova sometime, probably in about 5.5 billion years. _____ f) Vega is a star that has a stellar classification of A0 V. From this we can infer that Vega is more massive than the sun. _____ g) The heaviest elements (gold, lead, uranium, etc.) are thought to be ma ...
... _____ e) The sun will probably go supernova sometime, probably in about 5.5 billion years. _____ f) Vega is a star that has a stellar classification of A0 V. From this we can infer that Vega is more massive than the sun. _____ g) The heaviest elements (gold, lead, uranium, etc.) are thought to be ma ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.