Stars - BrainBytes
... Cool stars redder in color Stars 3900-7000 degrees C yellow Stars 7000-9500 degree C white Stars 9500+ degrees C blue ...
... Cool stars redder in color Stars 3900-7000 degrees C yellow Stars 7000-9500 degree C white Stars 9500+ degrees C blue ...
Lab 1-2 : Vocabulary
... in the universe was compressed into an extremely small volume that suddenly began expanding in all directions billions of years ago. ...
... in the universe was compressed into an extremely small volume that suddenly began expanding in all directions billions of years ago. ...
Black Hole
... •There are many galaxies in the universe, and our Another galaxy , The galaxy, the Milky Way Canis Major Dwarf, was found by German galaxy, has many solar Astronomers on November systems and planets in it. 10, 2010. This is currently the closest galaxy to our ...
... •There are many galaxies in the universe, and our Another galaxy , The galaxy, the Milky Way Canis Major Dwarf, was found by German galaxy, has many solar Astronomers on November systems and planets in it. 10, 2010. This is currently the closest galaxy to our ...
Stellar Evolution
... • If the core’s mass is even greater/denser than a neutron star, it collapses. • Surface gravity is so great that no matter can escape it…not even electromagnetic ...
... • If the core’s mass is even greater/denser than a neutron star, it collapses. • Surface gravity is so great that no matter can escape it…not even electromagnetic ...
Sample exam 2
... 13. Suppose you are looking at the emission spectrum of gaseous helium. You dutifully write down the wavelengths of emission. You notice a power dial on the side of emission lamp and, just for fun, decide to turn up the power. The color of the helium lamp changes and you look through the spectroscop ...
... 13. Suppose you are looking at the emission spectrum of gaseous helium. You dutifully write down the wavelengths of emission. You notice a power dial on the side of emission lamp and, just for fun, decide to turn up the power. The color of the helium lamp changes and you look through the spectroscop ...
Untitled - New Zealand Science Teacher
... is the biggest of the hundred-odd globulars randomly orbiting our galaxy. It may originally have been the core of a small galaxy that collided with the Milky Way and was stripped of its outer stars. Coalsack nebula, above and left of Crux, looks like a hole in the Milky Way. It is a cloud of dust an ...
... is the biggest of the hundred-odd globulars randomly orbiting our galaxy. It may originally have been the core of a small galaxy that collided with the Milky Way and was stripped of its outer stars. Coalsack nebula, above and left of Crux, looks like a hole in the Milky Way. It is a cloud of dust an ...
22 October: The Formation of Stars
... • When we see massive main sequence stars (spectral class O), we know they are young. • With fairly simple observations, we can find groups of O and B stars (OB associations) ...
... • When we see massive main sequence stars (spectral class O), we know they are young. • With fairly simple observations, we can find groups of O and B stars (OB associations) ...
Northern Hemisphere – December 2012
... Jupiter rises at sunset at the beginning of the month and is visible throughout the night as it reaches opposition (opposite the Sun in the sky) during December. Shining at magnitude -2.8, it reaches 60 degrees' elevation in Taurus in the south, helping us to see it with little atmospheric interfere ...
... Jupiter rises at sunset at the beginning of the month and is visible throughout the night as it reaches opposition (opposite the Sun in the sky) during December. Shining at magnitude -2.8, it reaches 60 degrees' elevation in Taurus in the south, helping us to see it with little atmospheric interfere ...
After Dark in Allenspark
... January 6: First quarter moon. January 9: Since January 1, Venus has been getting much lower in the sky at sunset each night. This is probably the last night to see Venus, but only if you have a good Western horizon. January 12: In the morning eastern sky, Jupiter is less than 1 degree North of the ...
... January 6: First quarter moon. January 9: Since January 1, Venus has been getting much lower in the sky at sunset each night. This is probably the last night to see Venus, but only if you have a good Western horizon. January 12: In the morning eastern sky, Jupiter is less than 1 degree North of the ...
Locating Objects in Space
... Ranges from 1st – 6th magnitude, 1st is 100 times brighter than 6th Difference of 1 magnitude corresponds to a factor of 2.512 in brightness Does not take into account the distance of the star ...
... Ranges from 1st – 6th magnitude, 1st is 100 times brighter than 6th Difference of 1 magnitude corresponds to a factor of 2.512 in brightness Does not take into account the distance of the star ...
Astronomy 170: Aug. 24 10am class
... There are about 6000 stars visible to the naked eye on a clear, moonless night at a dark site People like to see patterns: Constellations are patterns in the stars that look like people, everyday objects, animals Earliest records of constellations date to 3000 BC ...
... There are about 6000 stars visible to the naked eye on a clear, moonless night at a dark site People like to see patterns: Constellations are patterns in the stars that look like people, everyday objects, animals Earliest records of constellations date to 3000 BC ...
Lecture 14 - Center for Astrophysics and Space Astronomy CASA
... orbiting, but we can see them both Astrometric Binary proper motion wiggles to show orbit Spectrum Binary spectra of two stars of different type Spectroscopic Binary Doppler shift shows orbital motion Eclipsing Binary light varies Half of all stars are in binaries…. Binary stars are formed at birth. ...
... orbiting, but we can see them both Astrometric Binary proper motion wiggles to show orbit Spectrum Binary spectra of two stars of different type Spectroscopic Binary Doppler shift shows orbital motion Eclipsing Binary light varies Half of all stars are in binaries…. Binary stars are formed at birth. ...
Stellar Evolution: After the Main Sequence
... • Relatively young Population I stars are metal rich; ancient Population II stars are metal poor • The metals (heavy elements) in Population I stars were manufactured by thermonuclear reactions in an earlier generation of Population II stars, then ejected into space and incorporated into a later ste ...
... • Relatively young Population I stars are metal rich; ancient Population II stars are metal poor • The metals (heavy elements) in Population I stars were manufactured by thermonuclear reactions in an earlier generation of Population II stars, then ejected into space and incorporated into a later ste ...
February - Bristol Astronomical Society
... K. Although Mirzam appears relatively dim when compared to Sirius, it is in reality by far the brighter of the two. Its visual magnitude of +1.98 is the result of its much greater distance of 500 light-years, 60 times more distant than Sirius. If Mirzam were at the same distance as Sirius; 8.6 light ...
... K. Although Mirzam appears relatively dim when compared to Sirius, it is in reality by far the brighter of the two. Its visual magnitude of +1.98 is the result of its much greater distance of 500 light-years, 60 times more distant than Sirius. If Mirzam were at the same distance as Sirius; 8.6 light ...
2010_02_04 LP08 Our Galactic Home
... Lasers (reflecting off the Moon) Radar (reflecting off the Moon or Venus) Heliocentric parallax (Earth’s ORBIT as baseline) Moving clusters (Pleiades) H-R Diagram R R Lyrae variable stars (M=0.5) Cepheid variable stars Brightest supergiants (M=-8) “Normal” novae Globular clusters (brightest at M=-10 ...
... Lasers (reflecting off the Moon) Radar (reflecting off the Moon or Venus) Heliocentric parallax (Earth’s ORBIT as baseline) Moving clusters (Pleiades) H-R Diagram R R Lyrae variable stars (M=0.5) Cepheid variable stars Brightest supergiants (M=-8) “Normal” novae Globular clusters (brightest at M=-10 ...
Scattering (and the blue sky)
... The dark dust clouds are very opaque in the visible, but we can see through them better and better, the longer the wavelength of light that is used. Looking through the galactic plane has the same effect; to see to the heart of the Galaxy you must use infrared or radio (or X-rays!). ...
... The dark dust clouds are very opaque in the visible, but we can see through them better and better, the longer the wavelength of light that is used. Looking through the galactic plane has the same effect; to see to the heart of the Galaxy you must use infrared or radio (or X-rays!). ...
Death of Low Mass Stars 8 Solar Masses or less
... • The shell of the star (red giant outer surface) is subject to a series of explosions that eject gas and dust into space (nebula). • A star can lose up to 1/2 the original mass. • Diameter can be very large (typically 1 ly) • Gas expands 30 km/s ...
... • The shell of the star (red giant outer surface) is subject to a series of explosions that eject gas and dust into space (nebula). • A star can lose up to 1/2 the original mass. • Diameter can be very large (typically 1 ly) • Gas expands 30 km/s ...
Universe ppt - Killeen ISD
... Moving Galaxies - Astronomers use information about how galaxies are moving as one way to develop ideas about how the universe formed. By examining the visible light spectrum of a galaxy, astronomers can tell how fast the galaxy is moving toward or away from our galaxy (the Milky Way). Only a few of ...
... Moving Galaxies - Astronomers use information about how galaxies are moving as one way to develop ideas about how the universe formed. By examining the visible light spectrum of a galaxy, astronomers can tell how fast the galaxy is moving toward or away from our galaxy (the Milky Way). Only a few of ...
ISP 205 Review Questions, Week 13
... spectrum is what we would see if the galaxy were at rest relative to our own galaxy. The lower spectrum is for a galaxy that is moving away from us due to the expansion of the Universe, so that the Doppler effect has shifted its absorption lines to the red. The shift can be related to the velocity o ...
... spectrum is what we would see if the galaxy were at rest relative to our own galaxy. The lower spectrum is for a galaxy that is moving away from us due to the expansion of the Universe, so that the Doppler effect has shifted its absorption lines to the red. The shift can be related to the velocity o ...
Astronomy 242: Review Questions #1 Distributed: February 10
... 12. You observe a sample of Cepheid variable stars in a nearby galaxy. Plotting the average apparent K-band magnitude of each one against the period of pulsation yields Fig. 3. The straight line, a least-squares fit to the data, has the equation mK = 16.40 − 3.53 log(P/day). (a) Does it seem reasona ...
... 12. You observe a sample of Cepheid variable stars in a nearby galaxy. Plotting the average apparent K-band magnitude of each one against the period of pulsation yields Fig. 3. The straight line, a least-squares fit to the data, has the equation mK = 16.40 − 3.53 log(P/day). (a) Does it seem reasona ...
The Ursa Major Moving Cluster, Collinder 285
... escaped due to mutual encounters, tidal forces of the Milky Way, or encounters with large interstellar clouds and other clusters. Now as they have left the cluster, their orbits around the Milky Way Galaxy's center is still similar to that of the cluster so that they have a common motion. All these ...
... escaped due to mutual encounters, tidal forces of the Milky Way, or encounters with large interstellar clouds and other clusters. Now as they have left the cluster, their orbits around the Milky Way Galaxy's center is still similar to that of the cluster so that they have a common motion. All these ...
Characteristics of Stars
... Use pages 793-799 in the textbook to find the answers to the questions below. Use the back of this page or a separate pieced of binder paper if you need more room. 1. How long would it take to travel to the Sun at light speed? How long would it take to travel to the nearest star if you could travel ...
... Use pages 793-799 in the textbook to find the answers to the questions below. Use the back of this page or a separate pieced of binder paper if you need more room. 1. How long would it take to travel to the Sun at light speed? How long would it take to travel to the nearest star if you could travel ...
PHY299B Poster-Justin Hudson-v2
... brightest star is blocked by the other creating the eclipsing effect like when Earth experiences a solar eclipse. The smaller dips in brightness is when the brighter star blocks out the light from the other star when passing in front of it. • From these curves, we can tell if stars follow the charac ...
... brightest star is blocked by the other creating the eclipsing effect like when Earth experiences a solar eclipse. The smaller dips in brightness is when the brighter star blocks out the light from the other star when passing in front of it. • From these curves, we can tell if stars follow the charac ...
Notes- Stars
... will collapse so completely that it will literally disappear from the universe. What is left behind is an intense region of gravity called a black hole ...
... will collapse so completely that it will literally disappear from the universe. What is left behind is an intense region of gravity called a black hole ...
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.