Aspire: Star Life Cycle - Easy Peasy All-in
... Our Sun Vega Sirius B I. Click on the image to start the next activity. ...
... Our Sun Vega Sirius B I. Click on the image to start the next activity. ...
February 16
... the luminosity of stars. The bigger the star the higher its luminosity. The width of the spectral lines is divided into luminosity classes; I being the narrowest, II being less narrow, and V being the broadest. ...
... the luminosity of stars. The bigger the star the higher its luminosity. The width of the spectral lines is divided into luminosity classes; I being the narrowest, II being less narrow, and V being the broadest. ...
Double Stars in Scorpio`s Claws
... stars that are a rewarding challenge to any astronomer. Some of these are actual double stars (pairs of stars that orbit about each other), others are ‘apparent doubles’ – stars that simply lie along the same line of sight, but are very distant from each other in space. The map below indicates the l ...
... stars that are a rewarding challenge to any astronomer. Some of these are actual double stars (pairs of stars that orbit about each other), others are ‘apparent doubles’ – stars that simply lie along the same line of sight, but are very distant from each other in space. The map below indicates the l ...
Into the sub-mm
... what the emission signifies, it is possibile that these mark the earliest phase of star formation. Modelling of the chemistry and dynamics of the finger-tip condensations has begun. The final presentation of the morning was by Ben Zuckerman (University of California Los Angeles) who showed the resul ...
... what the emission signifies, it is possibile that these mark the earliest phase of star formation. Modelling of the chemistry and dynamics of the finger-tip condensations has begun. The final presentation of the morning was by Ben Zuckerman (University of California Los Angeles) who showed the resul ...
Lecture11
... •How does the temperature of an interstellar cloud affect its ability to form stars? •A) Star formation is so complicated that it is not possible to say how one quantity, such as temperature, affects it •B) Higher temperatures inhibit star formation •C) Higher temperatures help star formation •D) St ...
... •How does the temperature of an interstellar cloud affect its ability to form stars? •A) Star formation is so complicated that it is not possible to say how one quantity, such as temperature, affects it •B) Higher temperatures inhibit star formation •C) Higher temperatures help star formation •D) St ...
The Evolution of Low Mass Stars
... overcome electron degeneracy, and it would collapse and become an even denser and more compact object, either called a neutron star or a black hole. ...
... overcome electron degeneracy, and it would collapse and become an even denser and more compact object, either called a neutron star or a black hole. ...
Name:
... Use this sheet in conjunction with the provided January Evening Sky Map (www.skymaps.com). This map shows the sky as it would appear over the Peoria area at around 8:00 p.m. in early January, at 7:00 p.m. in late January, and at 6:00 p.m. in early February. Use the map within one hour of these presc ...
... Use this sheet in conjunction with the provided January Evening Sky Map (www.skymaps.com). This map shows the sky as it would appear over the Peoria area at around 8:00 p.m. in early January, at 7:00 p.m. in late January, and at 6:00 p.m. in early February. Use the map within one hour of these presc ...
Stellar Magnitudes and Distances
... bright it appears at the earth’s surface. • A star’s absolute magnitude (M) is how bright it appears from a standard reference distance of 10 pc or 32.6 LY. • Since a star’s distance from the earth affects its apparent brightness, astronomers compare the brightnesses of stars on an absolute scale: a ...
... bright it appears at the earth’s surface. • A star’s absolute magnitude (M) is how bright it appears from a standard reference distance of 10 pc or 32.6 LY. • Since a star’s distance from the earth affects its apparent brightness, astronomers compare the brightnesses of stars on an absolute scale: a ...
doc - University of Texas Astronomy
... travel times,. Now evidence for three planets orbiting this pulsar, with masses like that of the Earth! But almost certainly not primordial (there from the beginning), because planet would be destroyed by the supernova explosion that gave rise to the neutron star. So maybe it is easy to form terrest ...
... travel times,. Now evidence for three planets orbiting this pulsar, with masses like that of the Earth! But almost certainly not primordial (there from the beginning), because planet would be destroyed by the supernova explosion that gave rise to the neutron star. So maybe it is easy to form terrest ...
RS Oph
... RS Oph is the second brightest member of a rare class of cataclysmic variable star known as recurrent novae (Nr). These stars are novae where more than one outburst has been observed and appear to be intermediate in class between the classical novae (single major outburst) and dwarf novae (frequent ...
... RS Oph is the second brightest member of a rare class of cataclysmic variable star known as recurrent novae (Nr). These stars are novae where more than one outburst has been observed and appear to be intermediate in class between the classical novae (single major outburst) and dwarf novae (frequent ...
www.aavso.org
... The accumulated charge in each pixel from photons falling on is measured. CCDs are very sensitive, respond to light over a wide range of wavelengths and can measure many stars at once, as compared to photomultiplier tubes which only measure one star at a time. ...
... The accumulated charge in each pixel from photons falling on is measured. CCDs are very sensitive, respond to light over a wide range of wavelengths and can measure many stars at once, as compared to photomultiplier tubes which only measure one star at a time. ...
1) The following questions refer to the HR diagram
... 22) What happens to the surface temperature and luminosity when a protostar radiatively contracts? A) Its surface temperature remains the same and its luminosity decreases. B) Its surface temperature and luminosity remain the same. C) Its surface temperature decreases and its luminosity increases. D ...
... 22) What happens to the surface temperature and luminosity when a protostar radiatively contracts? A) Its surface temperature remains the same and its luminosity decreases. B) Its surface temperature and luminosity remain the same. C) Its surface temperature decreases and its luminosity increases. D ...
Astronomy - Test 3
... E) Although such objects could occur, they would be so rare that we ignore them 26. Which of the following was not a method for making black holes that was discussed? A) Very high mass star supernova B) White dwarf supernova C) Accretion of matter onto a neutron star D) Merger of neutron stars E) Ac ...
... E) Although such objects could occur, they would be so rare that we ignore them 26. Which of the following was not a method for making black holes that was discussed? A) Very high mass star supernova B) White dwarf supernova C) Accretion of matter onto a neutron star D) Merger of neutron stars E) Ac ...
Orion - Starry Starry Night!
... Visible : Jan, Feb, Mar, Apr, Dec Winter - Spring Canis Major contains Sirius, the brightest star in the night sky, known as the "dog star". It is bright because of its proximity to our Solar System. In contrast, the other bright stars of the constellation are stars of great distance and high lumino ...
... Visible : Jan, Feb, Mar, Apr, Dec Winter - Spring Canis Major contains Sirius, the brightest star in the night sky, known as the "dog star". It is bright because of its proximity to our Solar System. In contrast, the other bright stars of the constellation are stars of great distance and high lumino ...
ppt - Astronomy & Physics
... So by comparing the spectrum of an object (star, galaxy) with that produced by similar elements in the lab (zero velocity), we can determine if the object is moving towards or away from us, and its speed towards/away from us. This really depends on using the ...
... So by comparing the spectrum of an object (star, galaxy) with that produced by similar elements in the lab (zero velocity), we can determine if the object is moving towards or away from us, and its speed towards/away from us. This really depends on using the ...
Universe Now - Course Pages of Physics Department
... – Very common systems; currently estimated to be even more common than single stars in our Galaxy. – Useful in estimating stellar masses: mass can be calculated when the orbital period is known (as stated by Kepler’s III law). – Can be classified according to the distance between the components: • D ...
... – Very common systems; currently estimated to be even more common than single stars in our Galaxy. – Useful in estimating stellar masses: mass can be calculated when the orbital period is known (as stated by Kepler’s III law). – Can be classified according to the distance between the components: • D ...
This document was created for people who do not have access to
... In Einstein’s day,the Milky Way galaxy was thought to be the entire universe. Everything we could observe, according to astronomers (and Einstein too!), was contained within the Milky Way. This is not to say that they could not see other galaxies; they simply thought they were ‘spiral nebulae’ with ...
... In Einstein’s day,the Milky Way galaxy was thought to be the entire universe. Everything we could observe, according to astronomers (and Einstein too!), was contained within the Milky Way. This is not to say that they could not see other galaxies; they simply thought they were ‘spiral nebulae’ with ...
Chapter 31 Galaxies & the Universe
... Both are variable stars that have a relationship between its luminosity and its pulsation period. ...
... Both are variable stars that have a relationship between its luminosity and its pulsation period. ...
A Study of the Spiral Galaxy M101 Elizabeth City State University
... filters isolated select wavelengths of light to allow one to examine the galaxy in detail and look for regions of high and low ionization, including HII regions. Table 3 describes the observing site. The Image Reduction and Analysis Facility (IRAF) is the software that was used for the image reducti ...
... filters isolated select wavelengths of light to allow one to examine the galaxy in detail and look for regions of high and low ionization, including HII regions. Table 3 describes the observing site. The Image Reduction and Analysis Facility (IRAF) is the software that was used for the image reducti ...
Lecture 9: Post-main sequence evolution of stars Lifespan on the
... • The evolution can be understood using the virial theorem ...
... • The evolution can be understood using the virial theorem ...
Distant galaxies and quasars The ages of things Light
... • In the past galaxies were on average bluer : smaller : messier • This has only become clear in recent years with Hubble Space Telescope deep images • It is consistent with the idea that galaxies have formed from the merger of sub-units ...
... • In the past galaxies were on average bluer : smaller : messier • This has only become clear in recent years with Hubble Space Telescope deep images • It is consistent with the idea that galaxies have formed from the merger of sub-units ...
Stellar Evolution
... Parallax Distance Distance + apparent brightness Luminosity ( L=4D2 l) Spectral type (or color) Temperature Luminosity + temperature Radius (L=4R2 T4) Luminosity and temperature are the two independent intrinsic parameters of stars. ...
... Parallax Distance Distance + apparent brightness Luminosity ( L=4D2 l) Spectral type (or color) Temperature Luminosity + temperature Radius (L=4R2 T4) Luminosity and temperature are the two independent intrinsic parameters of stars. ...
Name: pd: ______ Date: Constellation Scavenger Hunt! Google Sky
... 27. Travel to Covus and find the Sombrero Galaxy. Draw it here and label its parts: ...
... 27. Travel to Covus and find the Sombrero Galaxy. Draw it here and label its parts: ...
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.