PODEX – PhOtometric Data EXtractor
... The pixel coordinates of the stars of interest are imported from a three column file. The first two columns contain the X– and Y–coordinates on the image. The third column an arbitrary colour index (Johnson B-V, e.g.) for the corresponding star. The colour index is used for the colour–dependent exti ...
... The pixel coordinates of the stars of interest are imported from a three column file. The first two columns contain the X– and Y–coordinates on the image. The third column an arbitrary colour index (Johnson B-V, e.g.) for the corresponding star. The colour index is used for the colour–dependent exti ...
Test 3 Version 3 1. Milky Way halo stars follow: (a) differential
... 3. Which one of the following statements is true? (a) stars in the halo are deficient in heavy elements, (b) stars in the galactic disk are deficient in heavy elements, (c) stars in the nucleus have the largest amounts of heavy elements, (d) all chemical elements are distributed more or less uniform ...
... 3. Which one of the following statements is true? (a) stars in the halo are deficient in heavy elements, (b) stars in the galactic disk are deficient in heavy elements, (c) stars in the nucleus have the largest amounts of heavy elements, (d) all chemical elements are distributed more or less uniform ...
Electromagnetic Waves - Flipped Out Science with Mrs. Thomas!
... non-breaking ocean wave), though it also behaves somewhat like a particle, because it comes in packets of energy of a particular size. ...
... non-breaking ocean wave), though it also behaves somewhat like a particle, because it comes in packets of energy of a particular size. ...
Galaxies
... in front bends the light which is coming from the objects behind. The path of the light from the source is curved. As a result, the object in the background appears distorted, and its apparent position is changed. The observer may even see multiple images of a single source. ...
... in front bends the light which is coming from the objects behind. The path of the light from the source is curved. As a result, the object in the background appears distorted, and its apparent position is changed. The observer may even see multiple images of a single source. ...
Multiple Choice, continued
... • Many of the modern names we use for the constellations come from Latin. • Some constellations are named for real or imaginary animals, such as Ursa Major (the great bear) or ancient gods or legendary heroes, such as Hercules or Orion. ...
... • Many of the modern names we use for the constellations come from Latin. • Some constellations are named for real or imaginary animals, such as Ursa Major (the great bear) or ancient gods or legendary heroes, such as Hercules or Orion. ...
First Light for May, 2001 - South Bay Astronomical Society
... of diffuse nebula, part of the Rho Ophiuchi Complex. For the first time, using the 35mm Panoptic eyepiece and my Comet Filter (really an ultra-high contrast filter), I was actually able to make out the hazy nebulosity. Moving into Ophiuchus, I came across NGC 6369, a planetary nebula. This was just ...
... of diffuse nebula, part of the Rho Ophiuchi Complex. For the first time, using the 35mm Panoptic eyepiece and my Comet Filter (really an ultra-high contrast filter), I was actually able to make out the hazy nebulosity. Moving into Ophiuchus, I came across NGC 6369, a planetary nebula. This was just ...
The Milky Way: Home to Star Clusters
... was the original extent of the galaxy, and that this was created first, from the primordial gas that eventually collapsed in on itself, also demonstrated by the old stars contained within the globular clusters. This matter condensed to create the central bulge, which ultimately began to rotate, crea ...
... was the original extent of the galaxy, and that this was created first, from the primordial gas that eventually collapsed in on itself, also demonstrated by the old stars contained within the globular clusters. This matter condensed to create the central bulge, which ultimately began to rotate, crea ...
Carter K 1 - Mrs. Anthony`s English 2
... or facing away, so it is warm but not scorching, and cool but not frozen. It is just like the porridge in the middle that Goldilocks ate the one that is just right. This is the spot on the planet that the earthlike life would exist. All paragraphs should have at least one citation The star that the ...
... or facing away, so it is warm but not scorching, and cool but not frozen. It is just like the porridge in the middle that Goldilocks ate the one that is just right. This is the spot on the planet that the earthlike life would exist. All paragraphs should have at least one citation The star that the ...
Table of Contents - Imiloa Astronomy Center
... - It is one of the most photographed deep sky objects. - It is a vast nebula of gas and dust exquisitely lit by surrounding stars. - It is a celestial nursery. - It is believed that in several hundred million years, young stars will appear from this wealth of cosmic matter. - Inside is a fascinating ...
... - It is one of the most photographed deep sky objects. - It is a vast nebula of gas and dust exquisitely lit by surrounding stars. - It is a celestial nursery. - It is believed that in several hundred million years, young stars will appear from this wealth of cosmic matter. - Inside is a fascinating ...
Stars, Galaxies, and the Universe Section 3 Stars, Galaxies, and the
... and are held together by gravity. The center of mass, or barycenter, is somewhere between the two stars. • In star systems that have more than two stars, two stars may revolve rapidly around a common barycenter, while a third star revolves more slowly at a greater distance from the pair. • Astronome ...
... and are held together by gravity. The center of mass, or barycenter, is somewhere between the two stars. • In star systems that have more than two stars, two stars may revolve rapidly around a common barycenter, while a third star revolves more slowly at a greater distance from the pair. • Astronome ...
Abstract and Summary
... Observations of the photospheres of white-dwarf stars show they rotate with longer periods than expected. It is not known whether this is due to the loss of angular momentum during evolutionary stages, or if the stars ‘hide’ some of their angular momentum by encompassing interiors that spin more rap ...
... Observations of the photospheres of white-dwarf stars show they rotate with longer periods than expected. It is not known whether this is due to the loss of angular momentum during evolutionary stages, or if the stars ‘hide’ some of their angular momentum by encompassing interiors that spin more rap ...
3 - Celestial Sphere
... SCP) and imaginary lines such as the Celestial Equator (CE) positioned on this sphere. Earth is located at the sphere’s center. Currently, the North Celestial Pole is very close to a star called Polaris. 2) The ecliptic is the apparent annual path of the Sun on the Celestial Sphere. Notice that the ...
... SCP) and imaginary lines such as the Celestial Equator (CE) positioned on this sphere. Earth is located at the sphere’s center. Currently, the North Celestial Pole is very close to a star called Polaris. 2) The ecliptic is the apparent annual path of the Sun on the Celestial Sphere. Notice that the ...
Stefan-Boltzmann Law
... 1. For each pair of hot plates (read horizontally), circle the one that will boil the water more quickly. Is there a set of burners for which there is no way to tell? If so, which ones? 2. If you use two hot plates of the same size, can you assume that the one that boils water first is at the higher ...
... 1. For each pair of hot plates (read horizontally), circle the one that will boil the water more quickly. Is there a set of burners for which there is no way to tell? If so, which ones? 2. If you use two hot plates of the same size, can you assume that the one that boils water first is at the higher ...
Neutron stars and black holes
... is about 0.877 X 10-13 cm (according to the Wikipedia). The volume of the proton is 4/3 r3 = 2.82 X 10-39 cm3. The density = mass/volume = 5.9 X 1014 g/cm3. The Sun’s mass is 2 X 1030 kg = 2 X 1033 g. A one solar mass black hole has radius r ~ 3 km = 3 X 105 cm. The average density within the Schw ...
... is about 0.877 X 10-13 cm (according to the Wikipedia). The volume of the proton is 4/3 r3 = 2.82 X 10-39 cm3. The density = mass/volume = 5.9 X 1014 g/cm3. The Sun’s mass is 2 X 1030 kg = 2 X 1033 g. A one solar mass black hole has radius r ~ 3 km = 3 X 105 cm. The average density within the Schw ...
ES Chapter 30
... together and that orbit a common center of mass. – More than half of the stars in the sky are either binary stars or members of multiple-star systems. – Astronomers are able to identify binary stars through several methods. • Accurate measurements can show that its position shifts back and forth as ...
... together and that orbit a common center of mass. – More than half of the stars in the sky are either binary stars or members of multiple-star systems. – Astronomers are able to identify binary stars through several methods. • Accurate measurements can show that its position shifts back and forth as ...
Dancing with Stars 3 Dancing with Stars Binary Stellar Evolution 1
... to the Sun is Alpha Centauri. Less well known is that Alpha Centauri has a companion in wide orbit, known as Proxima Centauri. A closer examination shows that Alpha Centauri itself is not a single star but has a closely orbiting companion as well. Of the “two” stars closest to the Sun, three are in ...
... to the Sun is Alpha Centauri. Less well known is that Alpha Centauri has a companion in wide orbit, known as Proxima Centauri. A closer examination shows that Alpha Centauri itself is not a single star but has a closely orbiting companion as well. Of the “two” stars closest to the Sun, three are in ...
Nuclear Synthesis
... must be very dense. For example, when Ernst Öpik estimated the density of a Hertzsprung–Russell Diagram more fusion supported by electron degeneracy number of No visual binary stars–inonly ...
... must be very dense. For example, when Ernst Öpik estimated the density of a Hertzsprung–Russell Diagram more fusion supported by electron degeneracy number of No visual binary stars–inonly ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.