PARTS OF THE UNIVERSE
... v Parallax: apparent shift in the position of an object when view from two different locations. v Parallax Example v Can be used to measure the distance of stars from Earth that are relatively close. v Proxima Centauri: closest star to earth v (4.3 light years away – 40 trillion km) ...
... v Parallax: apparent shift in the position of an object when view from two different locations. v Parallax Example v Can be used to measure the distance of stars from Earth that are relatively close. v Proxima Centauri: closest star to earth v (4.3 light years away – 40 trillion km) ...
The Danger of Deadly Cosmic Explosions
... • Deadly from neutrinos within 30 light years. • Atmosphere, weather, ruined. • Major extinction. • Not much harm if further. • SN material in sediments. • 1 SN/100 years in our galaxy • Close 1 per 100million years. • Good news: our neighbors are peaceful. • Bad news: when one shows signs of blowin ...
... • Deadly from neutrinos within 30 light years. • Atmosphere, weather, ruined. • Major extinction. • Not much harm if further. • SN material in sediments. • 1 SN/100 years in our galaxy • Close 1 per 100million years. • Good news: our neighbors are peaceful. • Bad news: when one shows signs of blowin ...
What is the Zodiac? The Zodiac is defined by 12 constellations
... Each of these 12 major constellations has 3 other constellations associated with them. So in all there are 48 constellations in the Zodiac. Claudius Ptolemy of Alexandria (90 – 168 AD) was a Greek astronomer who borrowed his information from the ancient Babylonian texts and he listed the 48 constell ...
... Each of these 12 major constellations has 3 other constellations associated with them. So in all there are 48 constellations in the Zodiac. Claudius Ptolemy of Alexandria (90 – 168 AD) was a Greek astronomer who borrowed his information from the ancient Babylonian texts and he listed the 48 constell ...
Sermon Notes
... Each of these 12 major constellations has 3 other constellations associated with them. So in all there are 48 constellations in the Zodiac. Claudius Ptolemy of Alexandria (90 – 168 AD) was a Greek astronomer who borrowed his information from the ancient Babylonian texts and he listed the 48 constell ...
... Each of these 12 major constellations has 3 other constellations associated with them. So in all there are 48 constellations in the Zodiac. Claudius Ptolemy of Alexandria (90 – 168 AD) was a Greek astronomer who borrowed his information from the ancient Babylonian texts and he listed the 48 constell ...
E3 STELLAR DISTANCES E4 COSMOLOGY
... A main sequence star emits most of its energy at λ = 2.4 x 10-7 m. Its apparent brightness is measure at 4.3 x 10-9 W m-2. How far away is the star? [28 pc] ...
... A main sequence star emits most of its energy at λ = 2.4 x 10-7 m. Its apparent brightness is measure at 4.3 x 10-9 W m-2. How far away is the star? [28 pc] ...
6. Star Colors and the Hertzsprung
... If one could measure the distance to and recessional rate of very distant objects, expansion speed at different epochs in the evolution of the universe, then one might discriminate not only the age of the universe but what kind of universe we live in. What is actually measured is the redshift. The ...
... If one could measure the distance to and recessional rate of very distant objects, expansion speed at different epochs in the evolution of the universe, then one might discriminate not only the age of the universe but what kind of universe we live in. What is actually measured is the redshift. The ...
PPT - Mr.E Science
... and can measure the fact that all galaxies are moving away from each other. If you could run the film “backwards”, it would appear that all of the galaxies come together at a single incredibly dense point. Scientist CANNOT Explain where this dense point came from. WE CAN: ...
... and can measure the fact that all galaxies are moving away from each other. If you could run the film “backwards”, it would appear that all of the galaxies come together at a single incredibly dense point. Scientist CANNOT Explain where this dense point came from. WE CAN: ...
Characteristics of Stars
... 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 at light speed? What is a galaxy? What is the name of the galaxy we live in? How many ...
... 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 at light speed? What is a galaxy? What is the name of the galaxy we live in? How many ...
OUSNMAY06 - The George Abell Observatory
... and brightening so will become a naked eye object from dark sites. Moonlight will increasingly interfere especially (Full Moon on 13th) when the comet is at its brightest around 11th –16th May. It will be worth following May and early June as it moves rapidly across the sky. On the 8th fragment C pa ...
... and brightening so will become a naked eye object from dark sites. Moonlight will increasingly interfere especially (Full Moon on 13th) when the comet is at its brightest around 11th –16th May. It will be worth following May and early June as it moves rapidly across the sky. On the 8th fragment C pa ...
The Hertzsprung – Russell Diagram Star Data Table
... which type of star? (hint: red giant, main sequence, white dwarf) ...
... which type of star? (hint: red giant, main sequence, white dwarf) ...
Notes: Astronomy and Groups of Stars
... Oval shaped, Extremely bright, Older stars No regular shape, Very low mass Made of gas and dust, Least common Looks like a wheel with arm extensions Most common type Arms consist of younger stars, gas/dust. - our galaxy -100’s of billions of stars - it takes 100,000 light years to travel across our ...
... Oval shaped, Extremely bright, Older stars No regular shape, Very low mass Made of gas and dust, Least common Looks like a wheel with arm extensions Most common type Arms consist of younger stars, gas/dust. - our galaxy -100’s of billions of stars - it takes 100,000 light years to travel across our ...
Apparent Magnitude - RanelaghALevelPhysics
... emitted per second (units of Watts). • The Sun’s luminosity is about 4 x 1026 W. • The most luminous stars have a luminosity of about million times that of the Sun! ...
... emitted per second (units of Watts). • The Sun’s luminosity is about 4 x 1026 W. • The most luminous stars have a luminosity of about million times that of the Sun! ...
W > 1 - The Open University
... Use the guide above for Coma to locate M99. Then move 2o southeast to reach NGC4374 (M84) (9.3) eg and NGC4406 (M86) (9.2) eg easily visible in the same field of view. Scan this field carefully to locate other non-Messier galaxies. Note their positions and sketch the field, then use a suitable star ...
... Use the guide above for Coma to locate M99. Then move 2o southeast to reach NGC4374 (M84) (9.3) eg and NGC4406 (M86) (9.2) eg easily visible in the same field of view. Scan this field carefully to locate other non-Messier galaxies. Note their positions and sketch the field, then use a suitable star ...
here - Lund Observatory
... The trigonometric parallax for Sirius has been determined to 0.375’’. Stars of the same spectral and luminosity class are supposed to have the same absolute magnitudes and intrinsic colour indices. The interstellar reddening of the two binary components is assumed to be the same. The two cluster sta ...
... The trigonometric parallax for Sirius has been determined to 0.375’’. Stars of the same spectral and luminosity class are supposed to have the same absolute magnitudes and intrinsic colour indices. The interstellar reddening of the two binary components is assumed to be the same. The two cluster sta ...
Properties of Main Sequence Stars
... Determine approximate values of the luminosity, temperature, mass and radius of an O5 and M5 main sequence star using the HR diagram on the accompanying page or use the HR diagrams in the text (Unit 59). ...
... Determine approximate values of the luminosity, temperature, mass and radius of an O5 and M5 main sequence star using the HR diagram on the accompanying page or use the HR diagrams in the text (Unit 59). ...
Astronomy Galaxies & The Universe
... red → cooler 5,0000 F (3,000 K) blue → hottest 40,0000 F (30,000 K) ...
... red → cooler 5,0000 F (3,000 K) blue → hottest 40,0000 F (30,000 K) ...
Week 5 (10/16) – Quiz #11
... Which of the following statements comparing our Sun to another star X located at the outer edge of the Milky Way galaxy is TRUE: ...
... Which of the following statements comparing our Sun to another star X located at the outer edge of the Milky Way galaxy is TRUE: ...
CONSTELLATIONS OF THE SOUTHERN SKY VOLANS
... Gamma Volantis is a binary star in Volans, located about 142 light years from the Sun. The system is composed of the primary component, Gamma-2 Volantis, an orange giant with the stellar classification K0III, and Gamma-1 Volantis, a yellow-white main sequence star belonging to the stellar class F2V. ...
... Gamma Volantis is a binary star in Volans, located about 142 light years from the Sun. The system is composed of the primary component, Gamma-2 Volantis, an orange giant with the stellar classification K0III, and Gamma-1 Volantis, a yellow-white main sequence star belonging to the stellar class F2V. ...
Stars and Sun
... Only part of the Milky Way is visible due to our being in the galaxy Galileo saw the Milky Way in 1609 using a telescope Bigger and brighter than most galaxies in the universe ...
... Only part of the Milky Way is visible due to our being in the galaxy Galileo saw the Milky Way in 1609 using a telescope Bigger and brighter than most galaxies in the universe ...
Document
... 4. A small, hot, dim star that is the leftover center of an old star is called a ___________ ____________. 5. A cloud of gases and dust that forms before the birth of a star is a _________. 6. An apparent shift in the position of an object when viewed from different locations is ____________________ ...
... 4. A small, hot, dim star that is the leftover center of an old star is called a ___________ ____________. 5. A cloud of gases and dust that forms before the birth of a star is a _________. 6. An apparent shift in the position of an object when viewed from different locations is ____________________ ...
LEO - nina`s Senior project
... the sky. It is a main sequence star with the stellar classification A3 V. It has an apparent visual magnitude of 2.113 and is approximately 35.9 light years distant from Earth. The star can easily be seen without binoculars.Denebola has 75% more mass than the Sun, 173% of the solar radius, and is 12 ...
... the sky. It is a main sequence star with the stellar classification A3 V. It has an apparent visual magnitude of 2.113 and is approximately 35.9 light years distant from Earth. The star can easily be seen without binoculars.Denebola has 75% more mass than the Sun, 173% of the solar radius, and is 12 ...
Properties of Stars and H
... There are 2 ways to measure brightness: • Apparent magnitude – when we use size, temperature, and distance to earth to calculate brightness. This is not a true measure because ...
... There are 2 ways to measure brightness: • Apparent magnitude – when we use size, temperature, and distance to earth to calculate brightness. This is not a true measure because ...
Aries (constellation)
Aries is one of the constellations of the zodiac. It is located in the northern celestial hemisphere between Pisces to the west and Taurus to the east. The name Aries is Latin for ram, and its symbol is 20px (Unicode ♈), representing a ram's horns. It is one of the 48 constellations described by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations. It is a mid-sized constellation, ranking 39th overall size, with an area of 441 square degrees (1.1% of the celestial sphere).Although Aries came to represent specifically the ram whose fleece became the Golden Fleece of Ancient Greek mythology, it has represented a ram since late Babylonian times. Before that, the stars of Aries formed a farmhand. Different cultures have incorporated the stars of Aries into different constellations including twin inspectors in China and a porpoise in the Marshall Islands. Aries is a relatively dim constellation, possessing only four bright stars: Hamal (Alpha Arietis, second magnitude), Sheratan (Beta Arietis, third magnitude), Mesarthim (Gamma Arietis, fourth magnitude), and 41 Arietis (also fourth magnitude). The few deep-sky objects within the constellation are quite faint and include several pairs of interacting galaxies. Several meteor showers appear to radiate from Aries, including the Daytime Arietids and the Epsilon Arietids.