Astronomy I Ex.2
... What is the (approximate) age of the universe in Gyr? 3. Convert the following distances in cm to distances in AU: a) Approximate distance from the earth to the sun: 1.44 × 1013 cm b) Approximate distance from the earth to the next nearest star - Alpha Centauri: 3.97 × 1018 cm c) Approximate distanc ...
... What is the (approximate) age of the universe in Gyr? 3. Convert the following distances in cm to distances in AU: a) Approximate distance from the earth to the sun: 1.44 × 1013 cm b) Approximate distance from the earth to the next nearest star - Alpha Centauri: 3.97 × 1018 cm c) Approximate distanc ...
Problem Sheet for Introduction to Astrophysics
... a) If you could stand on the event horizon of a one-solar-mass black hole (M=1.991030 kg), what is the tidal force acting on you? (Assume your weight is 70kg and your height is 2 m) b) If you could stand on the event horizon of a 109 solar mass black hole, what is the tidal force acting on you (the ...
... a) If you could stand on the event horizon of a one-solar-mass black hole (M=1.991030 kg), what is the tidal force acting on you? (Assume your weight is 70kg and your height is 2 m) b) If you could stand on the event horizon of a 109 solar mass black hole, what is the tidal force acting on you (the ...
3-Stars AM Adapted - vhs-ees-am
... type of death for Massive and Giant Blue Stars. They are a ...
... type of death for Massive and Giant Blue Stars. They are a ...
Black Holes, Part 9, Star Eaters
... emission spectrum would be shifted upwards into the high-energy bands, way past the UV band, into the hard-x-rays band. The extreme energy emission takes the resulting spectrum far outside the visible band. ...
... emission spectrum would be shifted upwards into the high-energy bands, way past the UV band, into the hard-x-rays band. The extreme energy emission takes the resulting spectrum far outside the visible band. ...
Scientists classify stars by
... 1. Stars are also classified by their brightness. 2. The brightness of a star as seen from Earth is called apparent magnitude. 3. The actual brightness of a star is called absolute magnitude. Example: The SUN has an absolute magnitude of 4.8 when compared to the other stars. The SUN has an apparent ...
... 1. Stars are also classified by their brightness. 2. The brightness of a star as seen from Earth is called apparent magnitude. 3. The actual brightness of a star is called absolute magnitude. Example: The SUN has an absolute magnitude of 4.8 when compared to the other stars. The SUN has an apparent ...
1/2016
... of this variable is enhanced by its prime position in the northern night sky. At a declination of +58 degrees, delta makes for a perfect target for northern observers, especially for those who see Cepheus as a circumpolar constellation. Investigation of delta Cephei's heavenly position shows that th ...
... of this variable is enhanced by its prime position in the northern night sky. At a declination of +58 degrees, delta makes for a perfect target for northern observers, especially for those who see Cepheus as a circumpolar constellation. Investigation of delta Cephei's heavenly position shows that th ...
Objects Beyond our Solar System
... when a large sun comes to the end of its life and explodes. The outside of the star is blown outward but the core that is left behind collapses in on itself and creates an incredibly dense mass of material. The core of a neutron star is so dense that one cupful of it would have a mass of millions ...
... when a large sun comes to the end of its life and explodes. The outside of the star is blown outward but the core that is left behind collapses in on itself and creates an incredibly dense mass of material. The core of a neutron star is so dense that one cupful of it would have a mass of millions ...
Stars - BrainBytes
... lower right (low luminosity, low surface temperature) Life span: 1 million – 1 billion yrs Actively fuse hydrogen and helium Example: our Sun ...
... lower right (low luminosity, low surface temperature) Life span: 1 million – 1 billion yrs Actively fuse hydrogen and helium Example: our Sun ...
The Life Cycle of a Star Webquest
... ______ The gas and dust compresses into a slowly rotating ball. ______ The gas ball begins to spin faster and cool. ______ A star begins to form from clouds of hydrogen gas and dust. ______ The ball separate into a core and spinning disks. 3. How long can a star stay a protostar? ___________________ ...
... ______ The gas and dust compresses into a slowly rotating ball. ______ The gas ball begins to spin faster and cool. ______ A star begins to form from clouds of hydrogen gas and dust. ______ The ball separate into a core and spinning disks. 3. How long can a star stay a protostar? ___________________ ...
Stars are classified by how hot they are (temperature)
... Due to Earth's rotation, we see the sun rise and set, and stars come and go in the night Stars do move in space, but because they are so distant, their motion is hard for us to ...
... Due to Earth's rotation, we see the sun rise and set, and stars come and go in the night Stars do move in space, but because they are so distant, their motion is hard for us to ...
Section 2
... is if it was the standard distance from the earth. temperature is based on the color of the star • Blue or blue white is the hottest and red is the coolest ...
... is if it was the standard distance from the earth. temperature is based on the color of the star • Blue or blue white is the hottest and red is the coolest ...
White Dwarfs - Astronomy - The University of Texas at Austin
... White Dwarfs (Section 5.1) Essentially every white dwarf formed since beginning of Galaxy is still here 10-100 billion of them (~ 100 billion stars total) Most are dim, undiscovered, see only those nearby, none naked eye Sirius, brightest star in the sky, has a white dwarf companion. Can’t see the ...
... White Dwarfs (Section 5.1) Essentially every white dwarf formed since beginning of Galaxy is still here 10-100 billion of them (~ 100 billion stars total) Most are dim, undiscovered, see only those nearby, none naked eye Sirius, brightest star in the sky, has a white dwarf companion. Can’t see the ...
Stars Powerpoint
... • The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it will collapse so completely that it will literally disappear from the universe. What is left be ...
... • The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it will collapse so completely that it will literally disappear from the universe. What is left be ...
ASTR-1020 Exam 2 Review Questions
... these two stars are farther from Earth? (Remember that the parallax angle is inversely proportional to the distance.) 4. What is the moving cluster method? Which star cluster is the foundation of the distance indicator method of figuring out the distance to external galaxies? 5. What is the differen ...
... these two stars are farther from Earth? (Remember that the parallax angle is inversely proportional to the distance.) 4. What is the moving cluster method? Which star cluster is the foundation of the distance indicator method of figuring out the distance to external galaxies? 5. What is the differen ...
PHYS299B_Final_HudsonJustin
... 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 characteristics of an eclipsing binary or other types ...
... 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 characteristics of an eclipsing binary or other types ...
Cygnus (constellation)
Cygnus /ˈsɪɡnəs/ is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. The swan is one of the most recognizable constellations of the northern summer and autumn, it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.Cygnus contains Deneb, one of the brightest stars in the night sky and one corner of the Summer Triangle, as well as some notable X-ray sources and the giant stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a black hole. Many star systems in Cygnus have known planets as a result of the Kepler Mission observing one patch of the sky, the patch is the area around Cygnus. In addition, most of the eastern part of Cygnus is dominated by the Hercules–Corona Borealis Great Wall, a giant galaxy filament that is the largest known structure in the observable universe; covering most of the northern sky.