This Month`s Celestial Events - Fort Worth Astronomical Society
... If more than one person discovers the comet independently, according to the International Astronomical Union (IAU) who determine official astronomical names, then the comet will be designated with the names of the co-discoverers, with the names in the order of discovery. If the comet is discovered ...
... If more than one person discovers the comet independently, according to the International Astronomical Union (IAU) who determine official astronomical names, then the comet will be designated with the names of the co-discoverers, with the names in the order of discovery. If the comet is discovered ...
The Milky Way Galaxy
... What is the ultimate origin of the elements heavier than helium that make up your body? (a) They were present when the Universe was created. (b) They were created in low mass (< 8 solar mass) stars ...
... What is the ultimate origin of the elements heavier than helium that make up your body? (a) They were present when the Universe was created. (b) They were created in low mass (< 8 solar mass) stars ...
Chapter 5
... • Large telescopes gather much more light, allowing study of very faint sources • Large telescopes also have better resolution © 2011 Pearson Education, Inc. ...
... • Large telescopes gather much more light, allowing study of very faint sources • Large telescopes also have better resolution © 2011 Pearson Education, Inc. ...
Study Guide for 1ST Astronomy Exam
... Describe the steps in the formation of solar system (33.2 to 33.5 1. Interstellar cloud collapses to a disk 2. Solid grains of rock and ice coalesce to form planetesimals o Within the “ice line” only rocky planetesimals form o Beyond the “ice line” planetesimals are composed mostly of ices. 3. Pla ...
... Describe the steps in the formation of solar system (33.2 to 33.5 1. Interstellar cloud collapses to a disk 2. Solid grains of rock and ice coalesce to form planetesimals o Within the “ice line” only rocky planetesimals form o Beyond the “ice line” planetesimals are composed mostly of ices. 3. Pla ...
Celestial Equator
... Some of the current constellations can be traced back to the inhabitants of the Euphrates valley, from whom they were handed down through the Greeks and Arabs. Few pictorial records of the ancient constellation figures have survived, but in the Almagest AD 150, Ptolemy catalogued the positions of 1, ...
... Some of the current constellations can be traced back to the inhabitants of the Euphrates valley, from whom they were handed down through the Greeks and Arabs. Few pictorial records of the ancient constellation figures have survived, but in the Almagest AD 150, Ptolemy catalogued the positions of 1, ...
Gilmore
... On galaxy scales there is an opportunity to learn some physics: everything should happen late. But. 0: big old galaxies, big old disks, SFR peaks z>1, 1: the MWG has a thick disk, just one of them, and it is old. This seems common. 2: massive old pure-thin-disk galaxies exist. Should they? 3: Sgr in ...
... On galaxy scales there is an opportunity to learn some physics: everything should happen late. But. 0: big old galaxies, big old disks, SFR peaks z>1, 1: the MWG has a thick disk, just one of them, and it is old. This seems common. 2: massive old pure-thin-disk galaxies exist. Should they? 3: Sgr in ...
Spectroscopy – the study of the colors of light (the spectrum) given
... Second , the luminosity must be found. Finding the luminosity is either: easy, if the distance to the star and the apparent brightness are known they can be used to find the luminosity from the inverse square law; or it is impossible, if the distance isn’t known. ...
... Second , the luminosity must be found. Finding the luminosity is either: easy, if the distance to the star and the apparent brightness are known they can be used to find the luminosity from the inverse square law; or it is impossible, if the distance isn’t known. ...
The TMT LGSF Launch Telescope Assembly System
... each theofLaser the laser an optical bench Switchyard beams through out of a with the LSE motor-controlled and up the telescope beamsplitter into two beamsplitters andone truss to the camera systems. BTOOB mirrors which accept the behind the focused at asecondary relatively 50W beams mirror.input cl ...
... each theofLaser the laser an optical bench Switchyard beams through out of a with the LSE motor-controlled and up the telescope beamsplitter into two beamsplitters andone truss to the camera systems. BTOOB mirrors which accept the behind the focused at asecondary relatively 50W beams mirror.input cl ...
Lecture 9: Stellar Spectra
... Example: the Effects of Dust There is gas and dust in between the stars. Dust particles are very small and scatter blue light more efficiently than red light. Most stars appear to be REDDER than they really are. A star’s color no longer tells you its tempertuare. But the spectrum still does! ...
... Example: the Effects of Dust There is gas and dust in between the stars. Dust particles are very small and scatter blue light more efficiently than red light. Most stars appear to be REDDER than they really are. A star’s color no longer tells you its tempertuare. But the spectrum still does! ...
TENTH GRADE SCOPE AND SEQUENCE DRAFT
... Night and day are caused by the rotation of the earth on its axis. The earth revolves around the sun once a year. The tilt of the earth results in seasonal changes. The sun gives us energy in the form of light and heat. The position of the sun in the sky appears to change over the course o ...
... Night and day are caused by the rotation of the earth on its axis. The earth revolves around the sun once a year. The tilt of the earth results in seasonal changes. The sun gives us energy in the form of light and heat. The position of the sun in the sky appears to change over the course o ...
Part 1
... Below are two star photos taken six months apart and laid atop one another so the background stars (circles) line up. There are two nearby stars also shown. Which of these nearby stars is closer? ...
... Below are two star photos taken six months apart and laid atop one another so the background stars (circles) line up. There are two nearby stars also shown. Which of these nearby stars is closer? ...
Question 1 The star Regulus, in the constellation Leo, appears
... . The fact that quasars can be detected from distances from which even the biggest and most luminous galaxies cannot be seen means that ...
... . The fact that quasars can be detected from distances from which even the biggest and most luminous galaxies cannot be seen means that ...
Astrometry: Revealing the Other Two Dimensions of
... First physical binary resolved by the telescope was Mizar, generally credited to Giovanni Ricciolo (1598 – 1671) in about 1650. It now appears that Galileo had actually resolved the star as early as 1617. Galileo was interested in double stars as a means for proving the heliocentric theory. He assum ...
... First physical binary resolved by the telescope was Mizar, generally credited to Giovanni Ricciolo (1598 – 1671) in about 1650. It now appears that Galileo had actually resolved the star as early as 1617. Galileo was interested in double stars as a means for proving the heliocentric theory. He assum ...
2.3 Peculiar galaxies
... First, think about a single star inside an isolated galaxy. It feels the summed-up gravitational force due to the mass of all the other stars in the galaxy, and this force determines the motion of the star. In other words, each star responds to the galaxy overall. Because isolated galaxies are nice ...
... First, think about a single star inside an isolated galaxy. It feels the summed-up gravitational force due to the mass of all the other stars in the galaxy, and this force determines the motion of the star. In other words, each star responds to the galaxy overall. Because isolated galaxies are nice ...
Isaac Newton Test - Garden of Praise
... who urged him to publish his findings. A. Halley B. Burke C. Hillary D. Jones 9. Newton used a _____ to study the properties of light. A. periscope B. prism C. telescope D. prison 10. He concluded that grass is green because _____. A. it has a lot of water B. that’s just the color of grass C. it ref ...
... who urged him to publish his findings. A. Halley B. Burke C. Hillary D. Jones 9. Newton used a _____ to study the properties of light. A. periscope B. prism C. telescope D. prison 10. He concluded that grass is green because _____. A. it has a lot of water B. that’s just the color of grass C. it ref ...
Lecture6
... released gravitational energy is radiated away from the surface as photons, while the other half heats up the star. So, as the contraction proceeds, the protostar gets hotter and smaller. ...
... released gravitational energy is radiated away from the surface as photons, while the other half heats up the star. So, as the contraction proceeds, the protostar gets hotter and smaller. ...
October 2005 NSTAR - North Houston Astronomy Club
... such as a Telrad, or as important as the proper way to clean your optics (Hacks #34 and #52). But did you know that when you are comfortably seated at your eyepiece (instead of standing) you improve your performance by an amount that is the same as having a telescope up to 2 inches bigger (Hack #60) ...
... such as a Telrad, or as important as the proper way to clean your optics (Hacks #34 and #52). But did you know that when you are comfortably seated at your eyepiece (instead of standing) you improve your performance by an amount that is the same as having a telescope up to 2 inches bigger (Hack #60) ...
Section 1
... ancient Romans later gave them: Mercury, Venus, Mars, Jupiter, and Saturn. Most early Greek astronomers believed the universe to be perfect, with Earth at the center. The Greeks thought that Earth is inside a rotating dome they called the celestial sphere. Since geo is the Greek word for “Earth,” an ...
... ancient Romans later gave them: Mercury, Venus, Mars, Jupiter, and Saturn. Most early Greek astronomers believed the universe to be perfect, with Earth at the center. The Greeks thought that Earth is inside a rotating dome they called the celestial sphere. Since geo is the Greek word for “Earth,” an ...
SkyFi Quick Start
... 3. Now turn on SkyFi. Move the power switch right to the BAT position to use battery power, or left to the EXT position to use external power. 4. The status LED should light up red at first, then turn green after a few seconds. If it does not, turn the power off for a few seconds, then turn it on ag ...
... 3. Now turn on SkyFi. Move the power switch right to the BAT position to use battery power, or left to the EXT position to use external power. 4. The status LED should light up red at first, then turn green after a few seconds. If it does not, turn the power off for a few seconds, then turn it on ag ...
International Ultraviolet Explorer
The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.