The Observer Newsletter - the TriState Astronomers
... hours to account for weather. He did not share his viewing locations with those in attendance, but discussed how he mapped out places along all routes where he could easily stop and view the eclipse such as ball fields, local parks, open fields. He also talked about techniques for photographing the ...
... hours to account for weather. He did not share his viewing locations with those in attendance, but discussed how he mapped out places along all routes where he could easily stop and view the eclipse such as ball fields, local parks, open fields. He also talked about techniques for photographing the ...
Today`s Powerpoint
... While on Main Sequence, stellar core has H -> He fusion, by p-p chain in stars like Sun or less massive. In more massive stars, “CNO cycle” becomes more important. ...
... While on Main Sequence, stellar core has H -> He fusion, by p-p chain in stars like Sun or less massive. In more massive stars, “CNO cycle” becomes more important. ...
Teacher Guide
... Giant star – a bright, very large star with a low density and a relatively low surface temperature. o ...
... Giant star – a bright, very large star with a low density and a relatively low surface temperature. o ...
Test 3, February 7, 2007 - Brock physics
... (a) Protostar, main-sequence, yellow giant, red giant, neutron star or a black hole. (b) Protostar, main-sequence, red giant, yellow giant, red giant, white dwarf. 31. Which is the heaviest element that can be obtained through nuclear fusion of the lighter ones with a release of energy? (a) Gold. (b ...
... (a) Protostar, main-sequence, yellow giant, red giant, neutron star or a black hole. (b) Protostar, main-sequence, red giant, yellow giant, red giant, white dwarf. 31. Which is the heaviest element that can be obtained through nuclear fusion of the lighter ones with a release of energy? (a) Gold. (b ...
1201 Discussion Notes
... Remember, the orbits in an elliptical galaxy are fairly random, so even if we focus on one area there will be a range of Doppler shifted lines from the stars that are moving towards and away from us at different speeds. These all combine (they sort of add together) to make a broadened line. The broa ...
... Remember, the orbits in an elliptical galaxy are fairly random, so even if we focus on one area there will be a range of Doppler shifted lines from the stars that are moving towards and away from us at different speeds. These all combine (they sort of add together) to make a broadened line. The broa ...
Chapter 16 - "The Universe"
... stars with different surface temperatures. Note that the peak radiation of a cooler star is more toward the red part of the spectrum, and the peak radiation of a hotter star is more toward the blue part of the spectrum. ...
... stars with different surface temperatures. Note that the peak radiation of a cooler star is more toward the red part of the spectrum, and the peak radiation of a hotter star is more toward the blue part of the spectrum. ...
Society News - Bristol Astronomical Society
... Its companion (iota B) is a white A-class (A3) main sequence dwarf star with an apparent magnitude of +6.57. The pair are separated by 30.5 arcseconds and can be split with a small telescope. Iota Cancri lies just over 9 degrees north of the open cluster M44 and marks the northern tip of the inverte ...
... Its companion (iota B) is a white A-class (A3) main sequence dwarf star with an apparent magnitude of +6.57. The pair are separated by 30.5 arcseconds and can be split with a small telescope. Iota Cancri lies just over 9 degrees north of the open cluster M44 and marks the northern tip of the inverte ...
CYGNUS CONSTELLATION, the Swan Cygnus is
... ranks 16th of the 88 constellations in size. It is bordered by Cepheus to the north and east, Draco to the north and west, Lyra to the west, Vulpecula to the south, Pegasus to the southeast and Lacerta to the east. The three-letter abbreviation for the constellation, as adopted by the IAU in 1922, i ...
... ranks 16th of the 88 constellations in size. It is bordered by Cepheus to the north and east, Draco to the north and west, Lyra to the west, Vulpecula to the south, Pegasus to the southeast and Lacerta to the east. The three-letter abbreviation for the constellation, as adopted by the IAU in 1922, i ...
Practice Questions for Final
... C. If you watch someone else fall into a black hole, you will never see them cross the event horizon. However, they will fade from view as the light they emit (or reflect) becomes more and more redshifted. ...
... C. If you watch someone else fall into a black hole, you will never see them cross the event horizon. However, they will fade from view as the light they emit (or reflect) becomes more and more redshifted. ...
Solutions 5
... hydrogen at a much higher rate, thus, the star spend less time on the main sequence. Greater mass means that higher mass elements, such as carbon, can be burned. Finally, when the nuclear fuels are exhausted the gravitational end is more spectacular. ...
... hydrogen at a much higher rate, thus, the star spend less time on the main sequence. Greater mass means that higher mass elements, such as carbon, can be burned. Finally, when the nuclear fuels are exhausted the gravitational end is more spectacular. ...
Stellar Evolution
... to counteract the force of gravity, the outer layers of the star begin to collapse inward. Just as during formation, when the material contracts, the temperature and pressure increase. This newly generated heat temporarily counteracts the force of gravity, and the outer layers of the star are now pu ...
... to counteract the force of gravity, the outer layers of the star begin to collapse inward. Just as during formation, when the material contracts, the temperature and pressure increase. This newly generated heat temporarily counteracts the force of gravity, and the outer layers of the star are now pu ...
The Future Sun • Homework 5 is due Wed, 24 March at 6:30am
... In what ways are HR diagrams of H+χ Perseus, Pleiades, Hyades, & NGC188 different? Q Which is false a. Hottest stars in Perseus are hotter than hottest stars in Pleiades. b. Most stars are on the main sequence. c. NGC188 has small range of luminosity d. Some clusters have giants. ...
... In what ways are HR diagrams of H+χ Perseus, Pleiades, Hyades, & NGC188 different? Q Which is false a. Hottest stars in Perseus are hotter than hottest stars in Pleiades. b. Most stars are on the main sequence. c. NGC188 has small range of luminosity d. Some clusters have giants. ...
w 2012-01-13 Stellar Life Cycle
... Emission nebulae are clouds of high temperature gas. The atoms in the cloud are energized by ultraviolet light from a nearby star and emit radiation as they fall back into lower energy states (in much the same way as a neon light). These nebulae are usually red because the predominant emission line ...
... Emission nebulae are clouds of high temperature gas. The atoms in the cloud are energized by ultraviolet light from a nearby star and emit radiation as they fall back into lower energy states (in much the same way as a neon light). These nebulae are usually red because the predominant emission line ...
Stars - HMXEarthScience
... Sequence” star during which size, the star grows in size as it uses up its fuel 5. Eventually when the hydrogen fuel becomes exhausted, the star expands greatly becoming a giant or a supergiant ...
... Sequence” star during which size, the star grows in size as it uses up its fuel 5. Eventually when the hydrogen fuel becomes exhausted, the star expands greatly becoming a giant or a supergiant ...
LOW MASS STAR FORMATION
... – Massive SF: clouds are warmer, larger, more massive, mainly located in spiral arms; high mass stars form in clusters and associations – Low-mass SF: form in a cooler population of clouds throughout the Galactic disk, as well as GMCs, not necessarily in clusters ...
... – Massive SF: clouds are warmer, larger, more massive, mainly located in spiral arms; high mass stars form in clusters and associations – Low-mass SF: form in a cooler population of clouds throughout the Galactic disk, as well as GMCs, not necessarily in clusters ...
Types of Stars
... of fuel in a star’s core leads to the star’s death as a white dwarf, neutron star, or black hole. ...
... of fuel in a star’s core leads to the star’s death as a white dwarf, neutron star, or black hole. ...
June 2016 - Flint River Astronomy Club
... constellation, the “Bull of Poniatowski” is a miniature version of the V-shaped asterism called the Hyades that forms the face of Taurus, the Bull. It is located in northeastern Ophiuchus, and was named Taurus Poniatovii in honor of the Polish king Stanislaus Poniatowski, who reigned from 17641795. ...
... constellation, the “Bull of Poniatowski” is a miniature version of the V-shaped asterism called the Hyades that forms the face of Taurus, the Bull. It is located in northeastern Ophiuchus, and was named Taurus Poniatovii in honor of the Polish king Stanislaus Poniatowski, who reigned from 17641795. ...
Stars Study Guide KEY
... Goal 2: Explain how scientists use light to analyze stars; Goal 3: Describe our sun in terms of age, temperature, size, color, and chemical composition. ...
... Goal 2: Explain how scientists use light to analyze stars; Goal 3: Describe our sun in terms of age, temperature, size, color, and chemical composition. ...
1. If a star`s temperature is doubled but radius is kept constant, by
... 1. If a star’s temperature is doubled but radius is kept constant, by how much does its luminosity go up by? 1a. Goes up by a factor of 24 = 16. 2. If a star’s temperature is increased by a factor of three, four, five and six, but in every case its radius is kept constant, what happens to its lumino ...
... 1. If a star’s temperature is doubled but radius is kept constant, by how much does its luminosity go up by? 1a. Goes up by a factor of 24 = 16. 2. If a star’s temperature is increased by a factor of three, four, five and six, but in every case its radius is kept constant, what happens to its lumino ...
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.