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Astronomy Lecture Notes: Stellar Nomenclature I Introduction
... ii. Many formal names of stars are middle eastern in origin to honor the middle eastern astronomers that carried on work in astronomy after the fall of the Roman Empire. iii. Examples: See the names of stars in the Big Dipper c. Apparent Magnitudes i. Apparent magnitude is a code for brightness ii. ...
... ii. Many formal names of stars are middle eastern in origin to honor the middle eastern astronomers that carried on work in astronomy after the fall of the Roman Empire. iii. Examples: See the names of stars in the Big Dipper c. Apparent Magnitudes i. Apparent magnitude is a code for brightness ii. ...
Characteristics of Stars
... • The scientific name for the twinkling of stars is stellar scintillation • Stars twinkle when we see them from the Earth's surface because we are viewing them through thick layers of turbulent (moving) air in the Earth's atmosphere. ...
... • The scientific name for the twinkling of stars is stellar scintillation • Stars twinkle when we see them from the Earth's surface because we are viewing them through thick layers of turbulent (moving) air in the Earth's atmosphere. ...
Chapter 5 Mid-term Study Guide
... ______ A small star becomes a white dwarf, and a large star becomes a neutron star or black hole. ______ The star collapses again and then explodes as a nova or supernova. ______ A cloud of dust and gas is drawn together by its own gravity. ______ The star continues to give off the same amount of en ...
... ______ A small star becomes a white dwarf, and a large star becomes a neutron star or black hole. ______ The star collapses again and then explodes as a nova or supernova. ______ A cloud of dust and gas is drawn together by its own gravity. ______ The star continues to give off the same amount of en ...
Stars are classified by how hot they are (temperature)
... Spectrograph – an instrument used by astronomers to spread starlight out into its colors (similar to a prism) Stars are made of various gases that produce different spectrum of light ...
... Spectrograph – an instrument used by astronomers to spread starlight out into its colors (similar to a prism) Stars are made of various gases that produce different spectrum of light ...
Astronomy 360 Physics/Geology 360
... The point at which the line bends away from the main sequence straight line is the turnoff point. The star’s age is just a tiny bit less than the main sequence lifetime. To get the cluster’s age we therefore measure the age of the star at the turnoff point by calculating its main sequence lifetime f ...
... The point at which the line bends away from the main sequence straight line is the turnoff point. The star’s age is just a tiny bit less than the main sequence lifetime. To get the cluster’s age we therefore measure the age of the star at the turnoff point by calculating its main sequence lifetime f ...
Groups_of_Stars_spectra
... • Binaries: Stars that come in pairs orbiting a center of mass (over ½ of all stars) ...
... • Binaries: Stars that come in pairs orbiting a center of mass (over ½ of all stars) ...
Monday, April 15
... – If a star is actually closer than 10pc, its absolute magnitude will be a bigger number, i.e. it is intrinsically dimmer than it appears – If a star is farther than 10pc, its absolute magnitude will be a smaller number, i.e. it is intrinsically brighter than it appears ...
... – If a star is actually closer than 10pc, its absolute magnitude will be a bigger number, i.e. it is intrinsically dimmer than it appears – If a star is farther than 10pc, its absolute magnitude will be a smaller number, i.e. it is intrinsically brighter than it appears ...
Name Date ______ Period _____ Earth Science Chapter 25 Study
... What types of nebula are there? __________________________________________________________________ __________________________________________________________________ A Hertzsprung-Russell (H-R) diagram shows what relationship? __________________________________________________________________ ______ ...
... What types of nebula are there? __________________________________________________________________ __________________________________________________________________ A Hertzsprung-Russell (H-R) diagram shows what relationship? __________________________________________________________________ ______ ...
LT 5: I can describe how astronomers determine the composition
... star a large celestial body that is composed of gas and that emits light. Nuclear fusion is the combination of light atomic nuclei to form heavier atomic nuclei Astronomers learn about stars by analyzing the light that the stars emit. ...
... star a large celestial body that is composed of gas and that emits light. Nuclear fusion is the combination of light atomic nuclei to form heavier atomic nuclei Astronomers learn about stars by analyzing the light that the stars emit. ...
Astronomy Learning Objectives and Study Questions for Chapter 12
... D. T-Tauri stars E. white dwarfs 5. At the end of its main-sequence life, H-fusion in a medium mass star like Sol will shift to a shell outside the core and the star will become a _____. A. red dwarf B. red giant C. white dwarf D. blue-white supergiant E. supernova 6. The period during which an RR ...
... D. T-Tauri stars E. white dwarfs 5. At the end of its main-sequence life, H-fusion in a medium mass star like Sol will shift to a shell outside the core and the star will become a _____. A. red dwarf B. red giant C. white dwarf D. blue-white supergiant E. supernova 6. The period during which an RR ...
labex7
... 5. Find the mass of each of the stars by using the Mass-Luminosity Relation (See online notes Chp 8.5) Record this in the table shown above. Also estimate the radius for each star from the HR diagram and where you placed these stars. 6. Use the distance modulus found earlier to compute the distance ...
... 5. Find the mass of each of the stars by using the Mass-Luminosity Relation (See online notes Chp 8.5) Record this in the table shown above. Also estimate the radius for each star from the HR diagram and where you placed these stars. 6. Use the distance modulus found earlier to compute the distance ...
Astronomy Problems – Color Index Nov. 2011
... Astronomers measure the brightness of stars at three colors of light: The "U" band at 360 nm The "B" band at 440 nm The "V" band at 540 nm The "color index" of a star is defined as the magnitude in the B filter, minus the magnitude in the V filter. Color Index = B-V, where B and V refer to the ...
... Astronomers measure the brightness of stars at three colors of light: The "U" band at 360 nm The "B" band at 440 nm The "V" band at 540 nm The "color index" of a star is defined as the magnitude in the B filter, minus the magnitude in the V filter. Color Index = B-V, where B and V refer to the ...
Star and Sun Properties
... 2. Proxima Centauri is small and has a low temperature compared to other stars. 3. A, The next stage after red giant is a white dwarf. 4. B, ...
... 2. Proxima Centauri is small and has a low temperature compared to other stars. 3. A, The next stage after red giant is a white dwarf. 4. B, ...
Document
... Would the surface temperature of white dwarf stars be higher or lower than red supergiants? (Circle one of the bold words) ...
... Would the surface temperature of white dwarf stars be higher or lower than red supergiants? (Circle one of the bold words) ...
May 2016 night sky chart
... For Darwin and similar locations the chart will still apply, but some stars will be lost off the southern edge while extra stars will be visible to the north. Stars down to a brightness or magnitude limit of 4.5 are shown on the star chart. To use this star chart, rotate the chart so that the direct ...
... For Darwin and similar locations the chart will still apply, but some stars will be lost off the southern edge while extra stars will be visible to the north. Stars down to a brightness or magnitude limit of 4.5 are shown on the star chart. To use this star chart, rotate the chart so that the direct ...
Sydney Observatory night sky map January 2014
... This star chart shows the stars and constellations visible in the night sky for Sydney, Melbourne, Canberra, Hobart and Adelaide for January 2014 at about 8:30 pm (summer time) and at about 7:30 pm (local standard time) for Perth and Brisbane. For Darwin and similar locations the chart will still ap ...
... This star chart shows the stars and constellations visible in the night sky for Sydney, Melbourne, Canberra, Hobart and Adelaide for January 2014 at about 8:30 pm (summer time) and at about 7:30 pm (local standard time) for Perth and Brisbane. For Darwin and similar locations the chart will still ap ...
your star chart here - Australasian Science Magazine
... This star chart shows the stars and constellations visible in the night sky for Sydney, Melbourne, Canberra, Hobart and Adelaide for January 2014 at about 8:30 pm (summer time) and at about 7:30 pm (local standard time) for Perth and Brisbane. For Darwin and similar locations the chart will still ap ...
... This star chart shows the stars and constellations visible in the night sky for Sydney, Melbourne, Canberra, Hobart and Adelaide for January 2014 at about 8:30 pm (summer time) and at about 7:30 pm (local standard time) for Perth and Brisbane. For Darwin and similar locations the chart will still ap ...
9 spectroscopic parallax
... The Sun has an apparent magnitude of –26. What might its absolute magnitude be? A. –26 B. –23 C. 4.85 D. –33 E. Cannot determine ...
... The Sun has an apparent magnitude of –26. What might its absolute magnitude be? A. –26 B. –23 C. 4.85 D. –33 E. Cannot determine ...
CONSTELLATION URSA MAJOR, THE GREAT
... Ursa Major (also known as the Great Bear) is a constellation in the northern celestial hemisphere. It was one of the 48 constellations listed by Ptolemy (second century AD), and remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its ...
... Ursa Major (also known as the Great Bear) is a constellation in the northern celestial hemisphere. It was one of the 48 constellations listed by Ptolemy (second century AD), and remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its ...
The Constellation Microscopium, the Microscope Microscopium is a
... brightest star. It is a yellow giant of spectral type G6III. Lying 381 light years away, It depicts the eyepiece of the microscope. Alpha Microscopii is also a yellow giant, though in this case a variable Johann Bode in his Uranographia atlas of star, which ranges between apparent magnitudes 4.88 an ...
... brightest star. It is a yellow giant of spectral type G6III. Lying 381 light years away, It depicts the eyepiece of the microscope. Alpha Microscopii is also a yellow giant, though in this case a variable Johann Bode in his Uranographia atlas of star, which ranges between apparent magnitudes 4.88 an ...
Stars Unit 1-2: Stars
... • Using light-years, Alpha Centauri can be expressed as being 4.3 light-years away. – Sirius is 9 light-years away. – Vega, the brightest summertime star, is 27 lightyears away. – Polaris, the North Star, is 680 light-years away. – The Milky Way Galaxy is about 100,000 lightyears across. ...
... • Using light-years, Alpha Centauri can be expressed as being 4.3 light-years away. – Sirius is 9 light-years away. – Vega, the brightest summertime star, is 27 lightyears away. – Polaris, the North Star, is 680 light-years away. – The Milky Way Galaxy is about 100,000 lightyears across. ...
Star project
... • They are extremely burning hot. • The nearest star to us is the sun. • They are made up of mainly hydrogen and helium, but have a little bit of other elements like oxygen and carbon as well. ...
... • They are extremely burning hot. • The nearest star to us is the sun. • They are made up of mainly hydrogen and helium, but have a little bit of other elements like oxygen and carbon as well. ...
ASTR-1020 Exam 2 Review Questions
... 2. What is the Doppler Effect? Which direction do spectral lines shift if an object is approaching us? Receding from us? 3. Star A has a parallax of 0.12 arcsec and star B has a parallax of 0.0098 arcsec. Which of these two stars are farther from Earth? (Remember that the parallax angle is inversely ...
... 2. What is the Doppler Effect? Which direction do spectral lines shift if an object is approaching us? Receding from us? 3. Star A has a parallax of 0.12 arcsec and star B has a parallax of 0.0098 arcsec. Which of these two stars are farther from Earth? (Remember that the parallax angle is inversely ...