Ay 122a Fall 2012 – HOMEWORK #1
... in California)? (d) Can you do this from Palomar anyway (Palomar’s latitude is +33◦ 210 2100 (e) What is the RA of the Sun at that moment? (f) What are the Galactic coordinates of this source? 3. Thinking Big... Suppose you are put in charge of designing a 30m optical/IR telescope, and that the base ...
... in California)? (d) Can you do this from Palomar anyway (Palomar’s latitude is +33◦ 210 2100 (e) What is the RA of the Sun at that moment? (f) What are the Galactic coordinates of this source? 3. Thinking Big... Suppose you are put in charge of designing a 30m optical/IR telescope, and that the base ...
Large Astronomical Telescope Development in China
... Schimdt optical system, scientists can expand the field of view through adding a corrector to the optical system, and scientists built the first Schimdt telescope with an aperture as big as 1.0 meter in the 1940s, around the same time when people obtained the first 5m general telescope. Things remai ...
... Schimdt optical system, scientists can expand the field of view through adding a corrector to the optical system, and scientists built the first Schimdt telescope with an aperture as big as 1.0 meter in the 1940s, around the same time when people obtained the first 5m general telescope. Things remai ...
What is a T Tauri star?
... Often accompanied by disk of gas and dust Active (star/disk interactions, fast rotation) Sometimes releasing mass via polar outflows ...
... Often accompanied by disk of gas and dust Active (star/disk interactions, fast rotation) Sometimes releasing mass via polar outflows ...
Life of stars, formation of elements
... of near side of dense cloud. • Many more similar starformation regions buried deep inside cloud. ...
... of near side of dense cloud. • Many more similar starformation regions buried deep inside cloud. ...
Slide 1
... 1. Supernova Type II: A star of over 2 solar masses burns to all it can, collapses as supporting radiation turns off, gets hot, produces neutrinos by combining protons and electrons, and rebounds, and explodes. ...
... 1. Supernova Type II: A star of over 2 solar masses burns to all it can, collapses as supporting radiation turns off, gets hot, produces neutrinos by combining protons and electrons, and rebounds, and explodes. ...
Final Review - PCHS SCIENCE
... coming from the star at that color than at the nearby colors. This usually means that the star's atmosphere contains certain types of molecules which absorb light of that color, so we don't see as much of it coming from the star. Astronomers can use the information from these "spectral lines" to fig ...
... coming from the star at that color than at the nearby colors. This usually means that the star's atmosphere contains certain types of molecules which absorb light of that color, so we don't see as much of it coming from the star. Astronomers can use the information from these "spectral lines" to fig ...
Lecture103002
... these neutrons combine with iron and other nuclei to form heavier nuclei very heavy nuclei can be built up more nucleosynthesis ...
... these neutrons combine with iron and other nuclei to form heavier nuclei very heavy nuclei can be built up more nucleosynthesis ...
Black Holes & Quasars—18 Nov • Black hole • Quasar Ast 207 F2009
... Infrared Images of the Galactic Center 1 LY Using “adaptive optics” technique on Gemini 8m telescope. ...
... Infrared Images of the Galactic Center 1 LY Using “adaptive optics” technique on Gemini 8m telescope. ...
Part I Light, Telescopes, Atoms and Stars
... cooler type of star called an L dwarf has been observed that extends the classifications one more full notch cooler ...
... cooler type of star called an L dwarf has been observed that extends the classifications one more full notch cooler ...
Stellar Evolution - Hays High School
... “This next image is one of the most spectacular views of 1987A yet acquired by the HST. The single large bright light is a star beyond the supernova environs. Around the central supernova is a single ring but associated with the expansion of expelled gases are also a pair of rings further away that ...
... “This next image is one of the most spectacular views of 1987A yet acquired by the HST. The single large bright light is a star beyond the supernova environs. Around the central supernova is a single ring but associated with the expansion of expelled gases are also a pair of rings further away that ...
Than Our Eyes Can See - Cool Cosmos
... result of the capture and study of radiation emitted by distant objects. In a sense, astronomy is a field where only remote sensing provides the data upon which our theories and knowledge rest. After travelling vast distances through space, it is ironic that much of the information we get from the u ...
... result of the capture and study of radiation emitted by distant objects. In a sense, astronomy is a field where only remote sensing provides the data upon which our theories and knowledge rest. After travelling vast distances through space, it is ironic that much of the information we get from the u ...
1. Base your answer to the following question
... formation and composition of some planets in our solar system. The distances of Earth and Neptune from the Sun, in astronomical units (AU), are shown beneath the horizontal axis. (1 AU = 149.6 million kilometers). The plotted line on this graph shows the relationship between a planet’s distance from ...
... formation and composition of some planets in our solar system. The distances of Earth and Neptune from the Sun, in astronomical units (AU), are shown beneath the horizontal axis. (1 AU = 149.6 million kilometers). The plotted line on this graph shows the relationship between a planet’s distance from ...
Astronomy Merit Badge
... days, showing the height and shape of the moon for each observation. Note the date and time of your observation next to each sketch of the moon. If the sky is overcast and the moon is not visible, either extend the observations until you can make four of them, and/or using the other observations, es ...
... days, showing the height and shape of the moon for each observation. Note the date and time of your observation next to each sketch of the moon. If the sky is overcast and the moon is not visible, either extend the observations until you can make four of them, and/or using the other observations, es ...
Johnathan - WordPress.com
... Sun. It has exhausted its core hydrogen and swollen out to 79 times the Sun's radius. An Alpha Cygni variable, it pulsates periodically. Visible in small telescopes and 500 times fainter than Rigel A, Rigel B is itself a spectroscopic binary system, consisting of two main sequence bluewhite stars o ...
... Sun. It has exhausted its core hydrogen and swollen out to 79 times the Sun's radius. An Alpha Cygni variable, it pulsates periodically. Visible in small telescopes and 500 times fainter than Rigel A, Rigel B is itself a spectroscopic binary system, consisting of two main sequence bluewhite stars o ...
Galileo Galilei The Sidereal Messenger http://archive.org/stream
... Earth's surface, as I shall hereafter show. And here I cannot refrain from mentioning what a remarkable spectacle I observed while the Moon was rapidly approaching her first quarter, a representation of which is given in the same illustration, placed opposite page 16. A protuberance of the shadow, o ...
... Earth's surface, as I shall hereafter show. And here I cannot refrain from mentioning what a remarkable spectacle I observed while the Moon was rapidly approaching her first quarter, a representation of which is given in the same illustration, placed opposite page 16. A protuberance of the shadow, o ...
“Astronomy Picture of the Day” Leads to a Research Breakthrough
... tion, the cosmological measurements that depend on supernova observations can be improved. There are two main possible progenitor subclasses, double degenerates and single degenerates. Double degenerates consist of two white dwarfs in a tight binary orbit, while single degenerates consist of a whi ...
... tion, the cosmological measurements that depend on supernova observations can be improved. There are two main possible progenitor subclasses, double degenerates and single degenerates. Double degenerates consist of two white dwarfs in a tight binary orbit, while single degenerates consist of a whi ...
Document
... dwarf stars and the late-in-life evolution and death of massive stars, stars > 8 solar masses, including supernova of these large mass stars. • Units covered: 65, 66, 67. ...
... dwarf stars and the late-in-life evolution and death of massive stars, stars > 8 solar masses, including supernova of these large mass stars. • Units covered: 65, 66, 67. ...
The Hertzsprung-Russell Diagram
... Types of Stars • Stars that fit the expected pattern – cool and dim; hot and bright – are called main sequence stars – Most stars fall in the region called main sequence. ...
... Types of Stars • Stars that fit the expected pattern – cool and dim; hot and bright – are called main sequence stars – Most stars fall in the region called main sequence. ...
How Stars Form Powerpoint
... Remember - Main Sequence is a band, rather than a line, because stars of the same mass can have different compositions. Most important: Stars do not move along the Main Sequence! Once they reach it, they are in equilibrium and do not move until their fuel begins to run out. ...
... Remember - Main Sequence is a band, rather than a line, because stars of the same mass can have different compositions. Most important: Stars do not move along the Main Sequence! Once they reach it, they are in equilibrium and do not move until their fuel begins to run out. ...
The Universe - Smithsonian Education
... of its status as a planet. Its demotion to “dwarf planet” was the result of the IAU’s effort to give planet its first official definition. According to the definition, a planet must be an orbiting body large enough to become round by the force of its own gravity, and large enough to dominate the nei ...
... of its status as a planet. Its demotion to “dwarf planet” was the result of the IAU’s effort to give planet its first official definition. According to the definition, a planet must be an orbiting body large enough to become round by the force of its own gravity, and large enough to dominate the nei ...
Exercise 5
... Applying the new understanding On the next page is a table of stellar spectra; each “row” represents the emissions from a particular star. The star’s abbreviated name is given to the left of its spectrum; for instance, the first star is “10 Lacerta”, which is the tenth brightest star in the constel ...
... Applying the new understanding On the next page is a table of stellar spectra; each “row” represents the emissions from a particular star. The star’s abbreviated name is given to the left of its spectrum; for instance, the first star is “10 Lacerta”, which is the tenth brightest star in the constel ...
Stars - Open Court Resources.com
... magazine was about a nebula, a large cloud of gas and dust in outer space. Definition – glowing clouds of gas and dust amidst the clouds. ...
... magazine was about a nebula, a large cloud of gas and dust in outer space. Definition – glowing clouds of gas and dust amidst the clouds. ...
Aug14Guide - East-View
... Vega we come to the brightest star of Cygnus, Deneb. Deneb is a totally different type of star to Vega as it is a blue-white supergiant which is estimated to be about 200,000 times more luminous that our Sun. Although it appears less bright than Vega in the sky, it is actually at a distance of 1,550 ...
... Vega we come to the brightest star of Cygnus, Deneb. Deneb is a totally different type of star to Vega as it is a blue-white supergiant which is estimated to be about 200,000 times more luminous that our Sun. Although it appears less bright than Vega in the sky, it is actually at a distance of 1,550 ...
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.