Module code: AA1
... The hypothetical question how the night sky would appear if all stars would possess the same luminosity as the sun or Barnard’s star was analysed with Excel diagrams leading to the conclusion that in case of the sun the night sky would have less bright stars and in case of Barnard’s star with the na ...
... The hypothetical question how the night sky would appear if all stars would possess the same luminosity as the sun or Barnard’s star was analysed with Excel diagrams leading to the conclusion that in case of the sun the night sky would have less bright stars and in case of Barnard’s star with the na ...
17_LectureOutline
... diagram, a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. ...
... diagram, a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. ...
celestial sphere
... distortion inherent in flat star maps is avoided. On the other hand, it forces you to view the constellations from the outside inward rather than from the inside outward. Several hundred stars have been plotted on the globe as well as the great circles representing the hour circles for every hour fr ...
... distortion inherent in flat star maps is avoided. On the other hand, it forces you to view the constellations from the outside inward rather than from the inside outward. Several hundred stars have been plotted on the globe as well as the great circles representing the hour circles for every hour fr ...
Stars, Galaxies, and the Universe Section 1 Section 1
... • The apparent motion of stars, or motion as it appears from Earth, is caused by the movement of Earth. • The stars seem as though they are moving counterclockwise around a central star called Polaris, the North Star. Polaris is almost directly above the North Pole, and thus the star does not appear ...
... • The apparent motion of stars, or motion as it appears from Earth, is caused by the movement of Earth. • The stars seem as though they are moving counterclockwise around a central star called Polaris, the North Star. Polaris is almost directly above the North Pole, and thus the star does not appear ...
Slide 1
... diagram, a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. ...
... diagram, a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. ...
Chapter 1 Seeing the Light: The Art and Science of Astronomy
... generally agree on the names of the constellations, they don’t have a consensus on what each name means. For example, some astronomers call Dorado the Swordfish, but I’d like to spike that name. One constellation, Serpens, the Serpent, is broken into two sections that aren’t connected. The two secti ...
... generally agree on the names of the constellations, they don’t have a consensus on what each name means. For example, some astronomers call Dorado the Swordfish, but I’d like to spike that name. One constellation, Serpens, the Serpent, is broken into two sections that aren’t connected. The two secti ...
D2 Stellar characteristics and stellar evolution
... dimming) which is caused by periodic expansion and contraction of outer surface (brighter as it expands). This is to do with the balance between the nuclear and gravitational forces within the star. In most stars these forces are balanced over long periods but in Cepheid variables they seem to take ...
... dimming) which is caused by periodic expansion and contraction of outer surface (brighter as it expands). This is to do with the balance between the nuclear and gravitational forces within the star. In most stars these forces are balanced over long periods but in Cepheid variables they seem to take ...
Modified True/False - Indicate whether the statement is true or false
... 8. HS-ESS1-1 In the last stage of stellar evolution following a supernova, stars too massive to form neutron stars may form a a. Red supergiant. c. White dwarf. b. Black dwarf. d. Black hole. ...
... 8. HS-ESS1-1 In the last stage of stellar evolution following a supernova, stars too massive to form neutron stars may form a a. Red supergiant. c. White dwarf. b. Black dwarf. d. Black hole. ...
upperMS - CWRU Astronomy
... 60% of a star over 15% of its main sequence lifetime If 40% of the remaining mass can be removed in the final 85% of the lifetime, then it’s a nitrogen rich star It’s ok to lose this much mass and still be OB, but if it loses much more, then its luminosity will be too low Often present in young clus ...
... 60% of a star over 15% of its main sequence lifetime If 40% of the remaining mass can be removed in the final 85% of the lifetime, then it’s a nitrogen rich star It’s ok to lose this much mass and still be OB, but if it loses much more, then its luminosity will be too low Often present in young clus ...
slides - Department of Physics and Astronomy
... Many ancient cultures saw patterns in the sky and established their own constellations and star lore based on their culture and mythology. Most northern constellations dates back to Babylonians times, 4-5 millennia ago, – Later Greeks adopted them and interpreted according to their mythology ...
... Many ancient cultures saw patterns in the sky and established their own constellations and star lore based on their culture and mythology. Most northern constellations dates back to Babylonians times, 4-5 millennia ago, – Later Greeks adopted them and interpreted according to their mythology ...
slides - Indico
... Why the Fascination with Metal-Poor Stars ? • Extremely metal-poor (MP) stars have recorded the heavy element abundances produced in the first generations of stars in the Universe • The shape of the low-metallicity tail of the Metallicity Distribution Function will (eventually) show structure that ...
... Why the Fascination with Metal-Poor Stars ? • Extremely metal-poor (MP) stars have recorded the heavy element abundances produced in the first generations of stars in the Universe • The shape of the low-metallicity tail of the Metallicity Distribution Function will (eventually) show structure that ...
Ch. 17 (RGs & WDs)
... This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching their courses and assessing student learning. Dissemination or sale of any part of this work (including on the World Wide Web) will destroy the integrity of the work and is not permit ...
... This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching their courses and assessing student learning. Dissemination or sale of any part of this work (including on the World Wide Web) will destroy the integrity of the work and is not permit ...
Agenda - Relativity Group
... a. Yes, all stars create heavier elements than carbon when they become a supernova. b. Yes, but there would be far fewer heavier elements because high-mass stars form elements like iron far more prolifically than low-mass stars. c. No, the core temperatures of low-mass stars are too low to fuse othe ...
... a. Yes, all stars create heavier elements than carbon when they become a supernova. b. Yes, but there would be far fewer heavier elements because high-mass stars form elements like iron far more prolifically than low-mass stars. c. No, the core temperatures of low-mass stars are too low to fuse othe ...
S1-4-03 - Celestial Navigation
... Show students the northern circumpolar constellations. Note that depending on where you live, some constellations are visible all year round and some constellations are seasonal. If you live in the Northern Hemisphere, the constellations that circle around the North Star are visible all year. These ...
... Show students the northern circumpolar constellations. Note that depending on where you live, some constellations are visible all year round and some constellations are seasonal. If you live in the Northern Hemisphere, the constellations that circle around the North Star are visible all year. These ...
The Fundamental Plane, Stellar Popula6ons
... Some of the (many) things we don’t know (at least not well)… What is the relaBon between stellar mass and dynamical mass, and how does this vary with parent halo mass & environment? How do the observed trends in stellar populaBons vary with environment (NN/local density/cluster radius/cluster ...
... Some of the (many) things we don’t know (at least not well)… What is the relaBon between stellar mass and dynamical mass, and how does this vary with parent halo mass & environment? How do the observed trends in stellar populaBons vary with environment (NN/local density/cluster radius/cluster ...
Comments
... over the entire age of the universe. From its measurements one can deduce information about objects at epochs currently inaccessible to telescopic studies. This review discusses the state of the current CIB measurements and the (mostly space-based) instruments with which these measurements have been ...
... over the entire age of the universe. From its measurements one can deduce information about objects at epochs currently inaccessible to telescopic studies. This review discusses the state of the current CIB measurements and the (mostly space-based) instruments with which these measurements have been ...
Star Magnitude - ScienceEducationatNewPaltz
... The First Magnitude Stars Table lists the brightest stars in the sky that are -1, 0 and 1 magnitude. Sirius is the brightest at -1.44 magnitude. These stars are referred to as First Magnitude stars since they are all 1 magnitude or brighter. Brightness of stars is assigned a number starting with the ...
... The First Magnitude Stars Table lists the brightest stars in the sky that are -1, 0 and 1 magnitude. Sirius is the brightest at -1.44 magnitude. These stars are referred to as First Magnitude stars since they are all 1 magnitude or brighter. Brightness of stars is assigned a number starting with the ...
Core-collapse supernovae and their massive progenitors
... Type Ic (H and He-poor) supernovae, respectively, whose circumstellar environment matches that of a WR star. Observationally, SN 2002ap (Type Ic) so far provides the most stringent constraints upon a potential WR progenitor, revealing an upper limit of MB = –4 mag, in common with a subset of Magella ...
... Type Ic (H and He-poor) supernovae, respectively, whose circumstellar environment matches that of a WR star. Observationally, SN 2002ap (Type Ic) so far provides the most stringent constraints upon a potential WR progenitor, revealing an upper limit of MB = –4 mag, in common with a subset of Magella ...
The correct answers are written in bold, italic and underlined. The
... • very long, billions of years, because it is a fixed shell of interstellar matter being illuminated by a white dwarf star whose age is this long. • very short, about 100 years, because it represents the rapidly expanding shell of an exploding star, or supernova. • relatively short, about 50,000 yea ...
... • very long, billions of years, because it is a fixed shell of interstellar matter being illuminated by a white dwarf star whose age is this long. • very short, about 100 years, because it represents the rapidly expanding shell of an exploding star, or supernova. • relatively short, about 50,000 yea ...
Distance Measurement in Astronomy
... P2. The angle 2A is measured and so the parallax (angle A) can be found. If you know the angle A and the radius of the Earth’s orbit (R) you can find the distance of the star (D). Stars that are close to the Earth clearly have a larger parallax than ones far away. Even nearby Stars are so far away t ...
... P2. The angle 2A is measured and so the parallax (angle A) can be found. If you know the angle A and the radius of the Earth’s orbit (R) you can find the distance of the star (D). Stars that are close to the Earth clearly have a larger parallax than ones far away. Even nearby Stars are so far away t ...
ted_2012_power_of_design
... gassiest) kid on the block. A gas giant with a mass 2.5 times that of all other planets in our solar system combined, Jupiter is the third-brightest object in the night sky after the moon and Venus. Jupiter’s most prominent feature is the Great Red Spot, a storm larger than Earth that has possibly b ...
... gassiest) kid on the block. A gas giant with a mass 2.5 times that of all other planets in our solar system combined, Jupiter is the third-brightest object in the night sky after the moon and Venus. Jupiter’s most prominent feature is the Great Red Spot, a storm larger than Earth that has possibly b ...
Astronomy Part 1 Regents Questions
... the standard spectrum to the spectrum produced from this distant star? A) The star’s spectral lines have shifted toward the ultraviolet end of the spectrum and the star is moving toward Earth. B) The star’s spectral lines have shifted toward the ultraviolet end of the spectrum and the star is moving ...
... the standard spectrum to the spectrum produced from this distant star? A) The star’s spectral lines have shifted toward the ultraviolet end of the spectrum and the star is moving toward Earth. B) The star’s spectral lines have shifted toward the ultraviolet end of the spectrum and the star is moving ...
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.