DO NOW - PBworks
... Record observations and data on the handout. 1. Inflate a balloon to about 45cm in circumference. 2. Cover the balloon in aluminum foil and measure the circumference of the “star”. 3. Measure the mass of the “star”. 4. Pop the balloon and gently crush the foil (NOT ALL THE WAY) to represent a supern ...
... Record observations and data on the handout. 1. Inflate a balloon to about 45cm in circumference. 2. Cover the balloon in aluminum foil and measure the circumference of the “star”. 3. Measure the mass of the “star”. 4. Pop the balloon and gently crush the foil (NOT ALL THE WAY) to represent a supern ...
Photoelectric Photometry of the Pleiades
... on Change View). When you are in the Instrument mode, the small red circle in the center of the field of view is called the photoelectric aperture and is that portion of the sky being examined by the photometer. The desired star must be carefully centered within the aperture, otherwise, some of the ...
... on Change View). When you are in the Instrument mode, the small red circle in the center of the field of view is called the photoelectric aperture and is that portion of the sky being examined by the photometer. The desired star must be carefully centered within the aperture, otherwise, some of the ...
Determining the Sizes & Distances of Stars Using the H
... diagram and lower luminosity (intrinsically faint) stars lie at the bottom of the diagram. Review that stars are grouped into four different categories in the HR Diagram: ● Main Sequence Stars: The characteristic of all these stars are that they are all generating energy by nuclear fusion deep in th ...
... diagram and lower luminosity (intrinsically faint) stars lie at the bottom of the diagram. Review that stars are grouped into four different categories in the HR Diagram: ● Main Sequence Stars: The characteristic of all these stars are that they are all generating energy by nuclear fusion deep in th ...
Astronomy Assignment #1
... The diameter of Alpha Centauri A is 1.71 x 109 meters. The Sun’s diameter is 1.39 x 109 meters as determined from the table in the text’s appendix. Thus, Alpha Centauri A is slightly larger than the Sun with a diameter of 1.23 solar diameters. Alpha Centauri B is (60/85) = 0.706 times smaller than A ...
... The diameter of Alpha Centauri A is 1.71 x 109 meters. The Sun’s diameter is 1.39 x 109 meters as determined from the table in the text’s appendix. Thus, Alpha Centauri A is slightly larger than the Sun with a diameter of 1.23 solar diameters. Alpha Centauri B is (60/85) = 0.706 times smaller than A ...
Properties of Supernovae
... Optically it is fairly dim (V~10), but it is a beautiful object when imaged with large telescopes. ...
... Optically it is fairly dim (V~10), but it is a beautiful object when imaged with large telescopes. ...
Extragalactic AO Science
... Only ~10-4 of objects are near bright foreground stars Curvature systems are currently doing most of the extragalactic science, but with limited Strehl. ...
... Only ~10-4 of objects are near bright foreground stars Curvature systems are currently doing most of the extragalactic science, but with limited Strehl. ...
Distance to the SMC
... Walter Baade, using the newly built Palomar 200 inch telescope, discovered that stars can be classified into two general age categories. Population I stars are relatively young and formed after the interstellar medium was enriched with metals from the explosions of supernova and the deaths of other ...
... Walter Baade, using the newly built Palomar 200 inch telescope, discovered that stars can be classified into two general age categories. Population I stars are relatively young and formed after the interstellar medium was enriched with metals from the explosions of supernova and the deaths of other ...
First Light for May, 2001 - South Bay Astronomical Society
... Saturday. So, on September 3 rd, I packed up and headed off to Inyokern Road area by Redrock Canyon for a night of observing. Predictions were for some fairly good conditions. Unfortunately, it turned out to be a lot windier than I’d anticipated. Too windy for doing any photography, I set the scope ...
... Saturday. So, on September 3 rd, I packed up and headed off to Inyokern Road area by Redrock Canyon for a night of observing. Predictions were for some fairly good conditions. Unfortunately, it turned out to be a lot windier than I’d anticipated. Too windy for doing any photography, I set the scope ...
D109-08x
... luminosity of these knots (with sizes of 2-5 kpc) was measured to be MV ~ -16.2 (substantially brighter than most dwarf galaxies) with individual luminosities ranging from -15 < MV < -17. Moreover, their colors were extremely blue in (V-I) averaging 0.15 +/- 0.06. Thus, these knots have properties s ...
... luminosity of these knots (with sizes of 2-5 kpc) was measured to be MV ~ -16.2 (substantially brighter than most dwarf galaxies) with individual luminosities ranging from -15 < MV < -17. Moreover, their colors were extremely blue in (V-I) averaging 0.15 +/- 0.06. Thus, these knots have properties s ...
US - Real Science
... Around one quarter of all large stars are born in starburst galaxies such as this. They spawn stars up to a thousand times faster than the Milky Way. In most starbursts the surge in starbirth is triggered when two galaxies come too close together. Mutual attraction between the galaxies causes immens ...
... Around one quarter of all large stars are born in starburst galaxies such as this. They spawn stars up to a thousand times faster than the Milky Way. In most starbursts the surge in starbirth is triggered when two galaxies come too close together. Mutual attraction between the galaxies causes immens ...
Synthetic color-magnitude diagrams: the ingredients
... In case if a SSP, i.e. a stellar population of a common age, one has to assume an instantaneous burst of star formation. Then the SFR function is represented by a Dirac delta function; In a CSP such as a galaxy, star formation takes place over a finite period of time; so it can be a complex function ...
... In case if a SSP, i.e. a stellar population of a common age, one has to assume an instantaneous burst of star formation. Then the SFR function is represented by a Dirac delta function; In a CSP such as a galaxy, star formation takes place over a finite period of time; so it can be a complex function ...
The Milky Way - Houston Community College System
... difficult. To discover the properties of stars, astronomers have used their telescopes and spectrographs in clever ways to learn the secrets hidden in starlight. The result is a family portrait of the stars. In this chapter you will find answers to five important questions about stars: • How far awa ...
... difficult. To discover the properties of stars, astronomers have used their telescopes and spectrographs in clever ways to learn the secrets hidden in starlight. The result is a family portrait of the stars. In this chapter you will find answers to five important questions about stars: • How far awa ...
Photoelectric Photometry of the Pleiades Student Manual
... of paper. Be sure your graph’s y axis runs from 0 at the top to 25 at the bottom as shown above. Creating too small a graph will make it difficult to plot data accurately. You will then create a second graph like the first on a clear plastic sheet. On this second graph you will plot a group of main ...
... of paper. Be sure your graph’s y axis runs from 0 at the top to 25 at the bottom as shown above. Creating too small a graph will make it difficult to plot data accurately. You will then create a second graph like the first on a clear plastic sheet. On this second graph you will plot a group of main ...
test - Scioly.org
... 2. Consider a binary system: Star A has a solar mass of 1.00. Star B has a solar mass of 12.0. Their mean separation is 60.0 A.U. a. What is the position of the center of mass of the binary system relative to star A? b. What is the position of the center of mass of the binary system relative to star ...
... 2. Consider a binary system: Star A has a solar mass of 1.00. Star B has a solar mass of 12.0. Their mean separation is 60.0 A.U. a. What is the position of the center of mass of the binary system relative to star A? b. What is the position of the center of mass of the binary system relative to star ...
about Stars
... • Astronomers quantify the “color” of a star by using the difference in brightness between the brightness in the B and V spectral regions • The B-V color is related to the slope of the ...
... • Astronomers quantify the “color” of a star by using the difference in brightness between the brightness in the B and V spectral regions • The B-V color is related to the slope of the ...
Section 4
... There are two major types of star clusters: open clusters and globular clusters. Open clusters have a loose, disorganized appearance and contain no more than a few thousand stars. They often contain many bright supergiants and much gas and dust. In contrast, globular clusters are large groupings of ...
... There are two major types of star clusters: open clusters and globular clusters. Open clusters have a loose, disorganized appearance and contain no more than a few thousand stars. They often contain many bright supergiants and much gas and dust. In contrast, globular clusters are large groupings of ...
2009_ASU_Exam
... a) What is the name of this object? b) What type of variability does this object exhibit? c) Which image shows a close-up of the surface of this object? d) Which image shows a light curve that represents the eventual catastrophic collapse of this object? e) This object is 1400 light-years from Earth ...
... a) What is the name of this object? b) What type of variability does this object exhibit? c) Which image shows a close-up of the surface of this object? d) Which image shows a light curve that represents the eventual catastrophic collapse of this object? e) This object is 1400 light-years from Earth ...
star - TeacherWeb
... brightly. Our Sun is a star. Most stars have partner stars. A group of two stars are known as binaries. Ancient Greeks and Romans observed patterns of stars in the sky CONSTELLATIONS They imagined that the constellations represented mythological creatures. In reality the stars in a constellation m ...
... brightly. Our Sun is a star. Most stars have partner stars. A group of two stars are known as binaries. Ancient Greeks and Romans observed patterns of stars in the sky CONSTELLATIONS They imagined that the constellations represented mythological creatures. In reality the stars in a constellation m ...
Volume 4 (Issue 3), March 2015
... and it seems that meteors are made up of material of the type only to be expected in view of their cometary origin. Radar studies of meteor trails are now of great importance; the first systematic work was carried out in 1945 by J. S. Hey and his team, with the δ Aquarids. However, amateur observati ...
... and it seems that meteors are made up of material of the type only to be expected in view of their cometary origin. Radar studies of meteor trails are now of great importance; the first systematic work was carried out in 1945 by J. S. Hey and his team, with the δ Aquarids. However, amateur observati ...
Life Cycle of Stars
... The term „double star“ is used for binary star systems, but also for stars that optically just appear close to each other. Binary star systems are very important references for astronomers: Their orbits allow to determine their masses, which again allows to calculate radius and density. Resulting ma ...
... The term „double star“ is used for binary star systems, but also for stars that optically just appear close to each other. Binary star systems are very important references for astronomers: Their orbits allow to determine their masses, which again allows to calculate radius and density. Resulting ma ...
Watching Galaxies Form Near the Beginning of Time
... • Galaxy spectra show a cutoff at 912 A due to absorption by neutral hydrogen • This allows a straightforward multicolor selection (blue in two bands, missing shortward of that) • Thousands of galaxies at z>2.7 have now been found in this way ...
... • Galaxy spectra show a cutoff at 912 A due to absorption by neutral hydrogen • This allows a straightforward multicolor selection (blue in two bands, missing shortward of that) • Thousands of galaxies at z>2.7 have now been found in this way ...
The Milky Way: Home to Star Clusters
... contained within the globular clusters. This matter condensed to create the central bulge, which ultimately began to rotate, creating the disc and spiral arms. This scenario is reasonably confirmed by observations; older stars are found at the outer edges of the galaxy, and young stars towards the g ...
... contained within the globular clusters. This matter condensed to create the central bulge, which ultimately began to rotate, creating the disc and spiral arms. This scenario is reasonably confirmed by observations; older stars are found at the outer edges of the galaxy, and young stars towards the g ...
Aries (constellation)
Aries is one of the constellations of the zodiac. It is located in the northern celestial hemisphere between Pisces to the west and Taurus to the east. The name Aries is Latin for ram, and its symbol is 20px (Unicode ♈), representing a ram's horns. It is one of the 48 constellations described by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations. It is a mid-sized constellation, ranking 39th overall size, with an area of 441 square degrees (1.1% of the celestial sphere).Although Aries came to represent specifically the ram whose fleece became the Golden Fleece of Ancient Greek mythology, it has represented a ram since late Babylonian times. Before that, the stars of Aries formed a farmhand. Different cultures have incorporated the stars of Aries into different constellations including twin inspectors in China and a porpoise in the Marshall Islands. Aries is a relatively dim constellation, possessing only four bright stars: Hamal (Alpha Arietis, second magnitude), Sheratan (Beta Arietis, third magnitude), Mesarthim (Gamma Arietis, fourth magnitude), and 41 Arietis (also fourth magnitude). The few deep-sky objects within the constellation are quite faint and include several pairs of interacting galaxies. Several meteor showers appear to radiate from Aries, including the Daytime Arietids and the Epsilon Arietids.