Basic Properties of the Stars
... parallax shifts with respect to the distant background of stars. Tycho Brahe improved positional measures from +/- 10 arc minutes to as good as +/- 1 arc minute, but he could measure no parallaxes. This implied either that the stars were more than 3000 Astronomical Units away, or that the Earth was ...
... parallax shifts with respect to the distant background of stars. Tycho Brahe improved positional measures from +/- 10 arc minutes to as good as +/- 1 arc minute, but he could measure no parallaxes. This implied either that the stars were more than 3000 Astronomical Units away, or that the Earth was ...
Sequencing the Stars
... All stars in a globular cluster formed at the same time but with various initial masses. The arrows show the progression from lower mass stars to more massive ones. single point using the average of the two brightnesses and the average of the two colors. But, if the brightnesses are significantly di ...
... All stars in a globular cluster formed at the same time but with various initial masses. The arrows show the progression from lower mass stars to more massive ones. single point using the average of the two brightnesses and the average of the two colors. But, if the brightnesses are significantly di ...
Stars and Stellar Evolution
... clue to star’s temperature Very hot (above 30,000 K) = blue Cooler = red In-between (50006000 K) = yellow ...
... clue to star’s temperature Very hot (above 30,000 K) = blue Cooler = red In-between (50006000 K) = yellow ...
Winter - Dark Sky Discovery
... The plough is perhaps the most easily recognised group of stars in the northern sky and it is a very useful ‘skymark’. The plough is always above the horizon and allows us to find Polaris, or the Pole Star. If you imagine the plough as a saucepan, then you can follow the two stars furthest from the ...
... The plough is perhaps the most easily recognised group of stars in the northern sky and it is a very useful ‘skymark’. The plough is always above the horizon and allows us to find Polaris, or the Pole Star. If you imagine the plough as a saucepan, then you can follow the two stars furthest from the ...
Kepler`s Law - New Mexico Tech
... bound stars that orbit around each other causing their orbits to bring one star in front of the other, giving eclipses of each other. •What type of object emits the given light intensity? X-ray Binaries: Binary Star system in which illuminate with x-rays. The x ray emissions are caused from matter b ...
... bound stars that orbit around each other causing their orbits to bring one star in front of the other, giving eclipses of each other. •What type of object emits the given light intensity? X-ray Binaries: Binary Star system in which illuminate with x-rays. The x ray emissions are caused from matter b ...
Solar System from Web
... bound stars that orbit around each other causing their orbits to bring one star in front of the other, giving eclipses of each other. •What type of object emits the given light intensity? X-ray Binaries: Binary Star system in which illuminate with x-rays. The x ray emissions are caused from matter b ...
... bound stars that orbit around each other causing their orbits to bring one star in front of the other, giving eclipses of each other. •What type of object emits the given light intensity? X-ray Binaries: Binary Star system in which illuminate with x-rays. The x ray emissions are caused from matter b ...
Problem Set 2
... 4. Here we’ll compute the distance and absolute magnitude of SN1987A, the Type IIc supernova that exploded in the Large Magellanic Cloud. The ring around SN1987A measures 1.0062 × 1.0018 on the sky. Assume that the ring is circular; what is its inclination i? Now, the first signal is seen at t0 = 8 ...
... 4. Here we’ll compute the distance and absolute magnitude of SN1987A, the Type IIc supernova that exploded in the Large Magellanic Cloud. The ring around SN1987A measures 1.0062 × 1.0018 on the sky. Assume that the ring is circular; what is its inclination i? Now, the first signal is seen at t0 = 8 ...
Key Stage 2: Teacher`s Pack
... 1. Which of the two inner planets are most similar in size? Venus and Earth 2. The Earth disc is about 70cm in diameter. Estimate the diameter of the Mars disc. 35cm (the diameter of Mars is around half that of the Earth’s) 3. The Earth disc lies 15m from the model Sun. How far (on average) is the r ...
... 1. Which of the two inner planets are most similar in size? Venus and Earth 2. The Earth disc is about 70cm in diameter. Estimate the diameter of the Mars disc. 35cm (the diameter of Mars is around half that of the Earth’s) 3. The Earth disc lies 15m from the model Sun. How far (on average) is the r ...
WEEK 8: CSI UCSC: ASTRO EDITION SOLUTIONS This week you
... (1) What other remnant usually accompanies a white dwarf? A white dwarf, which used to be the core of the star, comes embedded in a planetary nebula, which is basically a cloud of gas that used to make up the fluffy outer layers of the red giant. (2) Which two forces are in balance for a white dwarf ...
... (1) What other remnant usually accompanies a white dwarf? A white dwarf, which used to be the core of the star, comes embedded in a planetary nebula, which is basically a cloud of gas that used to make up the fluffy outer layers of the red giant. (2) Which two forces are in balance for a white dwarf ...
Searching for planets around evolved stars with COROT
... of our precise radial velocity (RV) measurements of G and K giants (ref a). A number of stars from our list of 80 targets have been observed for 14 months, using the fibre-fed echelle spectrograph FEROS at the 1.52 m ESO telescope in La Silla, Chile. Long-term accuracy better than 10 m/s is required ...
... of our precise radial velocity (RV) measurements of G and K giants (ref a). A number of stars from our list of 80 targets have been observed for 14 months, using the fibre-fed echelle spectrograph FEROS at the 1.52 m ESO telescope in La Silla, Chile. Long-term accuracy better than 10 m/s is required ...
Binary Stars - Mid-Pacific Institute
... A visual binary system is a system in which two separate stars are visible through a telescope that has an appropriate resolving power These can be difficult to detect if one of the stars’ brightness is much greater in effect blotting out the second star QuickTime™ and a decompressor are neede ...
... A visual binary system is a system in which two separate stars are visible through a telescope that has an appropriate resolving power These can be difficult to detect if one of the stars’ brightness is much greater in effect blotting out the second star QuickTime™ and a decompressor are neede ...
PowerPoint - Chandra X
... IC 443: A Supernova Remnant with a Newly Discovered Neutron Star 5,000 light years from Earth This Chandra image shows a point-like source of X-rays inside a cloud of high energy particles which is embedded in the supernova remnant IC443. Using this image, along with radio data from the Very Large A ...
... IC 443: A Supernova Remnant with a Newly Discovered Neutron Star 5,000 light years from Earth This Chandra image shows a point-like source of X-rays inside a cloud of high energy particles which is embedded in the supernova remnant IC443. Using this image, along with radio data from the Very Large A ...
luminosity1
... of a star. (Along with color and Wien’s Law) • Spectral typing can also be used to find out how much of a given element is in a star. • HD 161817 has much less of all the elements, other than Hydrogen and Helium, than the Sun. • In fact, it has about 0.03 the value of the Sun for all 90 elements. Th ...
... of a star. (Along with color and Wien’s Law) • Spectral typing can also be used to find out how much of a given element is in a star. • HD 161817 has much less of all the elements, other than Hydrogen and Helium, than the Sun. • In fact, it has about 0.03 the value of the Sun for all 90 elements. Th ...
Astronomy Jeopardy Astronomy jeopardy
... Star Dust - 500 Points When massively large stars die with a great explosion and such great a force of gravity that anything falling into it, including e-m waves becomes trapped and light cannot ...
... Star Dust - 500 Points When massively large stars die with a great explosion and such great a force of gravity that anything falling into it, including e-m waves becomes trapped and light cannot ...
The Life Cycle of a Star and the Hertzsprung
... stages, all at the same time. It is also a great tool to check your understanding of the star life cycle. In the Hertzsprung-Russell (HR) Diagram, each star is represented by a dot. There are lots of stars out there, so there are lots of dots. The position of each dot on the diagram tells us two thi ...
... stages, all at the same time. It is also a great tool to check your understanding of the star life cycle. In the Hertzsprung-Russell (HR) Diagram, each star is represented by a dot. There are lots of stars out there, so there are lots of dots. The position of each dot on the diagram tells us two thi ...
GEOCENTRIC AND HELIOCENTRIC MODELS
... Interstellar (distances between the stars) are measured using the light-year (l.y.). Since light travels about 9.5 trillion km per year, this distance is considered one light year. Astronomers have developed another useful unit for smaller distances in space. In the solar system, for instance, the s ...
... Interstellar (distances between the stars) are measured using the light-year (l.y.). Since light travels about 9.5 trillion km per year, this distance is considered one light year. Astronomers have developed another useful unit for smaller distances in space. In the solar system, for instance, the s ...
Name:
... Turn the sky map so that you are now facing the direction WEST. Adjust the sky map appropriately. (Put “WEST” at the bottom.) What “great” constellation can you find about halfway up in the western sky? 6)___________________, the Flying Horse. Extending upward from this pattern and stretching toward ...
... Turn the sky map so that you are now facing the direction WEST. Adjust the sky map appropriately. (Put “WEST” at the bottom.) What “great” constellation can you find about halfway up in the western sky? 6)___________________, the Flying Horse. Extending upward from this pattern and stretching toward ...
Answer titese questions on a piece of loose leaf paper.
... 15. What force pulls gas and dust together to begin forming stais? 16. A star is "bom** when what process begins? 17. - Stars with less mass "live" than stars witli more mass. 18. When a star begins to run out of fiicl, its outer layers 19. Name the stages in the "h'fe** of a low/medium mass star 20 ...
... 15. What force pulls gas and dust together to begin forming stais? 16. A star is "bom** when what process begins? 17. - Stars with less mass "live" than stars witli more mass. 18. When a star begins to run out of fiicl, its outer layers 19. Name the stages in the "h'fe** of a low/medium mass star 20 ...
The Hidden Lives of Galaxies NSTA 2001
... Giants and Supergiants •These lie in the upper right of the HR diagram, meaning that they are cool but luminous (bright). •Their luminosity is high because they are very large, and so have a big surface area to radiate from. Typically they may have a radius one hundred times that of the Sun. ...
... Giants and Supergiants •These lie in the upper right of the HR diagram, meaning that they are cool but luminous (bright). •Their luminosity is high because they are very large, and so have a big surface area to radiate from. Typically they may have a radius one hundred times that of the Sun. ...
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.