proper motion
... 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 ...
Lab 6
... class of variable stars called the Cepheids. These stars vary in brightness in a cyclical pattern, and are bright enough to be seen within another galaxy. Leavitt determined that absolute magnitude (M) of a Cepheid variable was mathematically related to the period (P, measured in days) of its bright ...
... class of variable stars called the Cepheids. These stars vary in brightness in a cyclical pattern, and are bright enough to be seen within another galaxy. Leavitt determined that absolute magnitude (M) of a Cepheid variable was mathematically related to the period (P, measured in days) of its bright ...
Chapter 2: The Sky
... Celestial Sphere • When we look at the sky, we see stars but have no actual clue as to how far away they are. Therefore it is as if they were all on a sphere out a long distance from us. This conceptual device is known as the celestial sphere. • Distances between objects then are measured in angle ...
... Celestial Sphere • When we look at the sky, we see stars but have no actual clue as to how far away they are. Therefore it is as if they were all on a sphere out a long distance from us. This conceptual device is known as the celestial sphere. • Distances between objects then are measured in angle ...
Life cycle of low mass stars
... Neutron star = similar to white dwarfs but smaller and more massive. Created by the massive collapse of a red supergiant. Earth would be the size of a football field and weigh 100 million tons High temperature but not very bright. Gravity > internal pressure Option 2: 6b. Black hole Black hole = obj ...
... Neutron star = similar to white dwarfs but smaller and more massive. Created by the massive collapse of a red supergiant. Earth would be the size of a football field and weigh 100 million tons High temperature but not very bright. Gravity > internal pressure Option 2: 6b. Black hole Black hole = obj ...
Dark Matter - UW - Laramie, Wyoming | University of Wyoming
... bend the light from a more distant galaxy. Image of the galaxy is strongly distorted into arcs. ...
... bend the light from a more distant galaxy. Image of the galaxy is strongly distorted into arcs. ...
Stars - Mrs. Tosh`s class
... The closer a star is the brighter it may appear. Astronomers use a star's apparent magnitude and its distance from Earth to calculate its absolute magnitude. Absolute magnitude is the actual brightness of a star. If all stars were the same distance away, their absolute magnitudes would be the same a ...
... The closer a star is the brighter it may appear. Astronomers use a star's apparent magnitude and its distance from Earth to calculate its absolute magnitude. Absolute magnitude is the actual brightness of a star. If all stars were the same distance away, their absolute magnitudes would be the same a ...
Astrophysics Outline—Option E
... E.1.2 Distinguish between a stellar cluster and a constellation. E.1.3 Define the light year. E.1.4 Compare the relative distances between stars within a galaxy and between galaxies, in terms of order of magnitude. E.1.5 Describe the apparent motion of the stars/constellations over a period of a nig ...
... E.1.2 Distinguish between a stellar cluster and a constellation. E.1.3 Define the light year. E.1.4 Compare the relative distances between stars within a galaxy and between galaxies, in terms of order of magnitude. E.1.5 Describe the apparent motion of the stars/constellations over a period of a nig ...
Exploring Stars - Discovery Education
... stars? What are they made of? How is a red star different from a blue star? Discuss and review the life cycles of small, medium, and large stars. What is the first stage in the life cycle of a star? How does a large star die? 2. Explain to students that they will be making a “movie” of the life of a ...
... stars? What are they made of? How is a red star different from a blue star? Discuss and review the life cycles of small, medium, and large stars. What is the first stage in the life cycle of a star? How does a large star die? 2. Explain to students that they will be making a “movie” of the life of a ...
Topic Outline - Physics Rocks!
... Solve problems involving stellar parallax. Absolute and apparent magnitudes E.3.5 Describe the apparent magnitude scale E.3.4 ...
... Solve problems involving stellar parallax. Absolute and apparent magnitudes E.3.5 Describe the apparent magnitude scale E.3.4 ...
Star Classification
... the brightness and color of main sequence stars. The brightness is indicated by luminosity and is higher up the yaxis. The temperature is given in degrees Kelvin and is higher on the left side of the x-axis. How does our Sun fare in terms of brightness and color compared with other stars? ...
... the brightness and color of main sequence stars. The brightness is indicated by luminosity and is higher up the yaxis. The temperature is given in degrees Kelvin and is higher on the left side of the x-axis. How does our Sun fare in terms of brightness and color compared with other stars? ...
Sample pages 2 PDF
... telescope have been observed every few hundred years by humans and were recorded as long ago as 1054 by Chinese astronomers. Many more supernovae are observed, in our own and other galaxies, with telescopes. (There are two types of supernovae. This is a description of type II supernovae. Type I supe ...
... telescope have been observed every few hundred years by humans and were recorded as long ago as 1054 by Chinese astronomers. Many more supernovae are observed, in our own and other galaxies, with telescopes. (There are two types of supernovae. This is a description of type II supernovae. Type I supe ...
Neutron Stars
... • Our atoms were once parts of stars that died more than 4.6 billion years ago, whose remains were swept up into the solar system when the Sun formed ...
... • Our atoms were once parts of stars that died more than 4.6 billion years ago, whose remains were swept up into the solar system when the Sun formed ...
A Summary of Stages
... dwarfs) will be dim and cool and, as they grow older, will only grow dimmer and cooler, ultimately becoming black dwarfs (see STAGE 14). Astronomers have identified several brown dwarf candidates, and even have evidence for the presence of Jupiter-like planets in orbit around several nearby stars. R ...
... dwarfs) will be dim and cool and, as they grow older, will only grow dimmer and cooler, ultimately becoming black dwarfs (see STAGE 14). Astronomers have identified several brown dwarf candidates, and even have evidence for the presence of Jupiter-like planets in orbit around several nearby stars. R ...
WHERE DO ELEMENTS COME FROM?
... • Alpher and Gamow also predicted that the heat present during the first few minutes is still present in the universe • The universe should have now expanded and be on average only a few Kelvins hot • The wave length of this radiation should be in the range of microwaves ...
... • Alpher and Gamow also predicted that the heat present during the first few minutes is still present in the universe • The universe should have now expanded and be on average only a few Kelvins hot • The wave length of this radiation should be in the range of microwaves ...
Chapter 11: Stars
... temperature can only be inferred from models. • Surface T is easier to measure than its luminosity because it does not depend on distance. ...
... temperature can only be inferred from models. • Surface T is easier to measure than its luminosity because it does not depend on distance. ...
Ch 28 Class Notes
... 2. An important class of pulsating stars are called _____________________________. These are yellow supergiants whose cycles of brightness range from about 1 day to 50 days (5 is average). The absolute magnitude of a Cepheid is related to the length of time between its periods of maximum brightness ...
... 2. An important class of pulsating stars are called _____________________________. These are yellow supergiants whose cycles of brightness range from about 1 day to 50 days (5 is average). The absolute magnitude of a Cepheid is related to the length of time between its periods of maximum brightness ...
Test - Scioly.org
... B. Distance from parent star (light years) C. Luminosity D. Absolute Brightness E. Phase 52. What is the Y-Axis of the above light curve? A. Magnitude B. Distance (light years) C. Inclination D. Transit Time E. Both C and D 53. Identify length “A” labeled in the above light curve. (T8) A. One Month ...
... B. Distance from parent star (light years) C. Luminosity D. Absolute Brightness E. Phase 52. What is the Y-Axis of the above light curve? A. Magnitude B. Distance (light years) C. Inclination D. Transit Time E. Both C and D 53. Identify length “A” labeled in the above light curve. (T8) A. One Month ...
Toys Watch the Sky - The Sun is a close star
... The Sun is a huge ball of glowing gases (mostly hydrogen and helium). It is the star at the centre of our Solar System. The Sun is located in an outer spiral arm of the Milky Way Galaxy, approximately 28,000 light-years from the galaxy's centre. (One light year is about 10 million million km.) In co ...
... The Sun is a huge ball of glowing gases (mostly hydrogen and helium). It is the star at the centre of our Solar System. The Sun is located in an outer spiral arm of the Milky Way Galaxy, approximately 28,000 light-years from the galaxy's centre. (One light year is about 10 million million km.) In co ...
mslien~1
... From above the Jeans criterion can be derived as M c M J where the Jeans mass MJ is given by the RHS of ...
... From above the Jeans criterion can be derived as M c M J where the Jeans mass MJ is given by the RHS of ...
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 ...
Slide 1
... our best estimates are around 9 billion years. To compare, our estimates for the Universe are that it is around 13 billion years old. So the Milky Way has been around for most of the life of the Universe. ...
... our best estimates are around 9 billion years. To compare, our estimates for the Universe are that it is around 13 billion years old. So the Milky Way has been around for most of the life of the Universe. ...
The Galaxies
... "spiral nebulas" were smaller and within it. Curtis argued that the Milky Way was considerably smaller and that the galaxies were island universes comparable in size to the Milky Way and very far away. ...
... "spiral nebulas" were smaller and within it. Curtis argued that the Milky Way was considerably smaller and that the galaxies were island universes comparable in size to the Milky Way and very far away. ...
Science Olympiad 2008 Reach for the Stars Division B
... most determines how they will differ? A) location where they are formed B) time they are formed C) luminosity they are formed with D) mass they are formed with E) color they are formed with 111. The spectral sequence sorts stars according to: (choose as many as apply) A) mass B) surface temperature ...
... most determines how they will differ? A) location where they are formed B) time they are formed C) luminosity they are formed with D) mass they are formed with E) color they are formed with 111. The spectral sequence sorts stars according to: (choose as many as apply) A) mass B) surface temperature ...
Serpens
Serpens (""the Serpent"", Greek Ὄφις) is a constellation of the northern hemisphere. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations defined by the International Astronomical Union. It is unique among the modern constellations in being split into two non-contiguous parts, Serpens Caput (Serpent's Head) to the west and Serpens Cauda (Serpent's Tail) to the east. Between these two halves lies the constellation of Ophiuchus, the ""Serpent-Bearer"". In figurative representations, the body of the serpent is represented as passing behind Ophiuchus between Mu Serpentis in Serpens Caput and Nu Serpentis in Serpens Cauda.The brightest star in Serpens is the red giant star Alpha Serpentis, or Unukalhai, in Serpens Caput, with an apparent magnitude of 2.63. Also located in Serpens Caput are the naked-eye globular cluster Messier 5 and the naked-eye variables R Serpentis and Tau4 Serpentis. Notable extragalactic objects include Seyfert's Sextet, one of the densest galaxy clusters known; Arp 220, the prototypical ultraluminous infrared galaxy; and Hoag's Object, the most famous of the very rare class of galaxies known as ring galaxies.Part of the Milky Way's galactic plane passes through Serpens Cauda, which is therefore rich in galactic deep-sky objects, such as the Eagle Nebula (IC 4703) and its associated star cluster Messier 16. The nebula measures 70 light-years by 50 light-years and contains the Pillars of Creation, three dust clouds that became famous for the image taken by the Hubble Space Telescope. Other striking objects include the Red Square Nebula, one of the few objects in astronomy to take on a square shape; and Westerhout 40, a massive nearby star-forming region consisting of a molecular cloud and an H II region.