chapter15SurveyStars..
... frequencies. http://en.wikipedia.org/wiki/Stefan-Boltzmann_law 2. Hotter objects emit photons with a higher average energy.http://en.wikipedia.org/wiki/Wien%27s_displacement_law ...
... frequencies. http://en.wikipedia.org/wiki/Stefan-Boltzmann_law 2. Hotter objects emit photons with a higher average energy.http://en.wikipedia.org/wiki/Wien%27s_displacement_law ...
The Milky Way Galaxy
... • Scientists think the centre of the galaxy contains a super massive black hole. • The Milky Way is full of dust, gas and stars. • The Milky Way, along with everything else, is moving through space. ...
... • Scientists think the centre of the galaxy contains a super massive black hole. • The Milky Way is full of dust, gas and stars. • The Milky Way, along with everything else, is moving through space. ...
The First Stars - Amazon Web Services
... The most massive stars of all actually collapse into black holes. This is where our search for the first stars leads us. For we expect that the first stars were exclusively massive, compared to the sun. The early universe was metal-free, consisting just of hydrogen and helium atoms. Now metals contr ...
... The most massive stars of all actually collapse into black holes. This is where our search for the first stars leads us. For we expect that the first stars were exclusively massive, compared to the sun. The early universe was metal-free, consisting just of hydrogen and helium atoms. Now metals contr ...
chapter 7 review questions
... GUIDEPOST CATEGORY: How do atoms interact with light? F 5. An absorption spectrum is also called a bright line spectrum. GUIDEPOST CATEGORY: What kind of spectra do you see when you look at celestial objects? T. 6. Hydrogen alpha is the longest wavelength Balmer line. F ...
... GUIDEPOST CATEGORY: How do atoms interact with light? F 5. An absorption spectrum is also called a bright line spectrum. GUIDEPOST CATEGORY: What kind of spectra do you see when you look at celestial objects? T. 6. Hydrogen alpha is the longest wavelength Balmer line. F ...
MS Word version
... This simulator has the power to create star trails on the horizon diagram. o A series of check boxes set the star trails option. No star trails is selfexplanatory. Short star trails creates a trail behind a star illustrating its position for the past 3 hours. Long trails will trace out a parallel of ...
... This simulator has the power to create star trails on the horizon diagram. o A series of check boxes set the star trails option. No star trails is selfexplanatory. Short star trails creates a trail behind a star illustrating its position for the past 3 hours. Long trails will trace out a parallel of ...
File - 5th Grade Science Almost done!!!!!!!!!
... • The first thing the students do when they enter the room is write down the homework (see next slide) in stone-silence. • After about 20 to 30 seconds of silence I tell the students “Please begin the warm up.” • Please go through the ppt with the students. Students will have to write items in blue ...
... • The first thing the students do when they enter the room is write down the homework (see next slide) in stone-silence. • After about 20 to 30 seconds of silence I tell the students “Please begin the warm up.” • Please go through the ppt with the students. Students will have to write items in blue ...
Micro_lect20a
... Orionis, one of the brightest stars in the familiar constellation of Orion, the Hunter. 4. The name Betelgeuse is Arabic in origin. As a massive red supergiant, it is nearing the end of its life and will soon become a supernova. In this historic image, a bright hotspot is revealed on the star's surf ...
... Orionis, one of the brightest stars in the familiar constellation of Orion, the Hunter. 4. The name Betelgeuse is Arabic in origin. As a massive red supergiant, it is nearing the end of its life and will soon become a supernova. In this historic image, a bright hotspot is revealed on the star's surf ...
γ The potential for intensity interferometry with -ray telescope arrays
... Michelson interferometers such as Ohana [10] which operate in the K band. Limiting mv of a CTA concept is illustrated in the right panel of Fig. 1. Targets are limited to a mv ≈ 8.5m for a S/N = 5, and a 5 hours integration in case of 50% visibility (see Le Bohec et al., these proceedings). These sp ...
... Michelson interferometers such as Ohana [10] which operate in the K band. Limiting mv of a CTA concept is illustrated in the right panel of Fig. 1. Targets are limited to a mv ≈ 8.5m for a S/N = 5, and a 5 hours integration in case of 50% visibility (see Le Bohec et al., these proceedings). These sp ...
Luminosity Classes
... These are called Variable Stars. The change in luminosity is due to a change in size. (Though temperature changes too.) ...
... These are called Variable Stars. The change in luminosity is due to a change in size. (Though temperature changes too.) ...
Prof. Kenney C lass 8 September 26, 2016
... 2. Red Giant I (fusing H in shell, no fusion in core) After it fuses all of H in core to He, there is no more H fuel in core to provide the energy & pressure to balance gravity So you’d think that the star would collapse (& not expand/get bigger) But what happens… Core shrinks & heats up Until layer ...
... 2. Red Giant I (fusing H in shell, no fusion in core) After it fuses all of H in core to He, there is no more H fuel in core to provide the energy & pressure to balance gravity So you’d think that the star would collapse (& not expand/get bigger) But what happens… Core shrinks & heats up Until layer ...
Westerlund 1 : A Super-Star Cluster within the Milky Way
... We present optical and IR photometric and spectroscopic observations of the young open cluster Westerlund 1 that indicate it is the first Super Star Cluster identified in the Milky Way. Wd1 hosts a rich population of OB supergiants, Wolf-Rayet stars, Luminous Blue Variables, Yellow Hypergiants and R ...
... We present optical and IR photometric and spectroscopic observations of the young open cluster Westerlund 1 that indicate it is the first Super Star Cluster identified in the Milky Way. Wd1 hosts a rich population of OB supergiants, Wolf-Rayet stars, Luminous Blue Variables, Yellow Hypergiants and R ...
PPT
... • The overall range of stellar masses runs from 0.08 times the mass of the Sun to about 150 times the mass of the Sun. • Masses are only known for stars that form binary systems, but about half of all stars are in fact in binary systems! – 0.08 MSun is approximately 80 MJupiter ...
... • The overall range of stellar masses runs from 0.08 times the mass of the Sun to about 150 times the mass of the Sun. • Masses are only known for stars that form binary systems, but about half of all stars are in fact in binary systems! – 0.08 MSun is approximately 80 MJupiter ...
The Milky Way Galaxy
... • In this time exposure, the dark rift in the Milky way can be seen starting in the constellation of Cygnus. ...
... • In this time exposure, the dark rift in the Milky way can be seen starting in the constellation of Cygnus. ...
Document
... • Moon takes longer to appear in same part of sky – 24h 49m • This is because: – As well as Earth’s rotation giving different view of Moon, Moon is also orbiting the Earth – Moon orbits from WE so during night the position of the Moon over 28 days appears to slip slowly back through the pattern of ...
... • Moon takes longer to appear in same part of sky – 24h 49m • This is because: – As well as Earth’s rotation giving different view of Moon, Moon is also orbiting the Earth – Moon orbits from WE so during night the position of the Moon over 28 days appears to slip slowly back through the pattern of ...
Document
... red giant is increasing due to the great increase in luminosity being provided by the fusion occurring in a shell around the core. ...
... red giant is increasing due to the great increase in luminosity being provided by the fusion occurring in a shell around the core. ...
Cygnus (constellation)
Cygnus /ˈsɪɡnəs/ is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. The swan is one of the most recognizable constellations of the northern summer and autumn, it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.Cygnus contains Deneb, one of the brightest stars in the night sky and one corner of the Summer Triangle, as well as some notable X-ray sources and the giant stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a black hole. Many star systems in Cygnus have known planets as a result of the Kepler Mission observing one patch of the sky, the patch is the area around Cygnus. In addition, most of the eastern part of Cygnus is dominated by the Hercules–Corona Borealis Great Wall, a giant galaxy filament that is the largest known structure in the observable universe; covering most of the northern sky.