color magnitude diagrams - AST 114, Astronomy Lab II for Spring
... The final piece we use to calibrate the system, and so the whole H-R diagram, is the application of the inverse-square law for nearby stars. If a star is close enough to us we see it move relative to distant stars as we orbit the Sun through Parallax. By measuring how much it appears to move we can ...
... The final piece we use to calibrate the system, and so the whole H-R diagram, is the application of the inverse-square law for nearby stars. If a star is close enough to us we see it move relative to distant stars as we orbit the Sun through Parallax. By measuring how much it appears to move we can ...
ASTR1102-002 Potentially useful facts and mathematical relations
... Star “Q” is not moving with respect to the Sun hence the light emitted from star “Q” exhibits no Doppler effect if it is observed from the Sun. As observed from the Earth, however, light from star “Q” exhibits a variable Doppler shift because of the Earth’s own orbital motion around the Sun. Describ ...
... Star “Q” is not moving with respect to the Sun hence the light emitted from star “Q” exhibits no Doppler effect if it is observed from the Sun. As observed from the Earth, however, light from star “Q” exhibits a variable Doppler shift because of the Earth’s own orbital motion around the Sun. Describ ...
Small Wonders: Cygnus
... Three degrees almost directly east of Deneb, we come across one of the most photographed nebulae in the night sky. The North American Nebula is spectacular in long exposure photographs, and unlike many objects in the sky clearly resembles its namesake. Until recently tho, its been considered a chall ...
... Three degrees almost directly east of Deneb, we come across one of the most photographed nebulae in the night sky. The North American Nebula is spectacular in long exposure photographs, and unlike many objects in the sky clearly resembles its namesake. Until recently tho, its been considered a chall ...
6 Minute English
... But once it reaches the sun’s surface – the photosphere – it can escape. In fact, it takes only eight minutes for light energy from the sun to reach the Earth. Scientists these days are able to see the photosphere in fantastic detail using powerful telescopes. Rob Though Galileo observed dark spots ...
... But once it reaches the sun’s surface – the photosphere – it can escape. In fact, it takes only eight minutes for light energy from the sun to reach the Earth. Scientists these days are able to see the photosphere in fantastic detail using powerful telescopes. Rob Though Galileo observed dark spots ...
Astronomy and the Coal Age of Alabama
... The Pleiades star cluster visible to the naked eye in Taurus is only 100 Myr old. It was not shining in anybody’s sky 310 Myr ago. ...
... The Pleiades star cluster visible to the naked eye in Taurus is only 100 Myr old. It was not shining in anybody’s sky 310 Myr ago. ...
Photosphere - Solar Physics and Space Weather
... The corona ejects mass into space to formlayer the solar wind of the Sun’s atmosphere • Corona is made of very high-temperature gases at extremely low density • It extends to several million Km • Because of hot temperature, it expands into the outer space forming solar wind ...
... The corona ejects mass into space to formlayer the solar wind of the Sun’s atmosphere • Corona is made of very high-temperature gases at extremely low density • It extends to several million Km • Because of hot temperature, it expands into the outer space forming solar wind ...
Sirius Astronomer - Orange County Astronomers
... much smaller than the spiral and elliptical galaxies seen today. So over the lifetime of galaxies they must feed on material to make new stars and grow into large galaxies. The new study found that at the start of those adolescent years, smooth gas flows into galaxies were the preferred method of fe ...
... much smaller than the spiral and elliptical galaxies seen today. So over the lifetime of galaxies they must feed on material to make new stars and grow into large galaxies. The new study found that at the start of those adolescent years, smooth gas flows into galaxies were the preferred method of fe ...
Exploring and Observing the Sun and Stars
... 7. The same student who drew the “standing line” will also make a mark on the ground where the partners shadow ends at the top of their head (Fig. 2). 8. The teacher will tell them the time (in our example it is 9 am), and the student will write a “9” by the mark. ...
... 7. The same student who drew the “standing line” will also make a mark on the ground where the partners shadow ends at the top of their head (Fig. 2). 8. The teacher will tell them the time (in our example it is 9 am), and the student will write a “9” by the mark. ...
Where do elements come from?
... What happens to the high mass stars when they exhaust their He fuel? • They have enough gravitational energy to heat up to 6 x 108 K. – C fuses into O ...
... What happens to the high mass stars when they exhaust their He fuel? • They have enough gravitational energy to heat up to 6 x 108 K. – C fuses into O ...
The production and updating of experimental results
... the criticisms that we have leveled at that notion might go along the following lines. An observation statement constitutes a fact worthy of forming part of the basis for science if it is such that it can be straightforwardly tested by the senses and withstands those tests. Here the "straightforward ...
... the criticisms that we have leveled at that notion might go along the following lines. An observation statement constitutes a fact worthy of forming part of the basis for science if it is such that it can be straightforwardly tested by the senses and withstands those tests. Here the "straightforward ...
S11 PHY114 Problem Set 3
... star where located at the center of the star. Newton knew this fact, but he proved it by a much more complicated method: Gauss found this simpler proof many decades later. (d) The gravitational field of a non-spherical star is not the same as that of a point mass at its center. The argument above bre ...
... star where located at the center of the star. Newton knew this fact, but he proved it by a much more complicated method: Gauss found this simpler proof many decades later. (d) The gravitational field of a non-spherical star is not the same as that of a point mass at its center. The argument above bre ...
key for the HR Diagram Lab Handout
... Geminorum have brightness of 9,000 Suns and 310 Suns respectively; these stars are much larger than Proxima and Barnard s with brightness of 0.00005 and 0.0003 Suns. The significant difference in brightness with no change in temperature means that Betelgeuse and Mu Geminorum are much larger than the ...
... Geminorum have brightness of 9,000 Suns and 310 Suns respectively; these stars are much larger than Proxima and Barnard s with brightness of 0.00005 and 0.0003 Suns. The significant difference in brightness with no change in temperature means that Betelgeuse and Mu Geminorum are much larger than the ...
Phase Analysis of RV Tauri and Semi-regular Variables Abstract
... RV Tauri variable stars, related classes of pulsating variable stars. The ultimate objective for our research is to determine whether the stars stellar properties such as temperature, radius, and luminosity correlate with their pulsation cycles. In order to determine this, we need to closely examine ...
... RV Tauri variable stars, related classes of pulsating variable stars. The ultimate objective for our research is to determine whether the stars stellar properties such as temperature, radius, and luminosity correlate with their pulsation cycles. In order to determine this, we need to closely examine ...
File
... A star's birth mass is the most important predictor of a star's luminosity. A star born with low mass will have a high luminosity; a star born with high mass will have a significantly lower luminosity. A star's birth mass is the most important predictor of a star's surface temperature. A star born ...
... A star's birth mass is the most important predictor of a star's luminosity. A star born with low mass will have a high luminosity; a star born with high mass will have a significantly lower luminosity. A star's birth mass is the most important predictor of a star's surface temperature. A star born ...
Outline - Picnic Point High School
... The Universe began with a singularity in space-time. After the initial explosion, the Universe started to expand, cool and condense, forming matter. As part of this ongoing process the Sun and the Solar System were formed over 4x109 years ago from a gas cloud which resulted from a supernova explosio ...
... The Universe began with a singularity in space-time. After the initial explosion, the Universe started to expand, cool and condense, forming matter. As part of this ongoing process the Sun and the Solar System were formed over 4x109 years ago from a gas cloud which resulted from a supernova explosio ...
Neither Star nor Planet - Max-Planck
... dwarfs follow the trend set by the stars – they prefer life as a single with decreasing mass. Brown dwarfs only ever appear as featureless points, even on images taken with the largest telescopes. The first surface map of a brown dwarf is therefore a sensation. It belongs to a binary system whose di ...
... dwarfs follow the trend set by the stars – they prefer life as a single with decreasing mass. Brown dwarfs only ever appear as featureless points, even on images taken with the largest telescopes. The first surface map of a brown dwarf is therefore a sensation. It belongs to a binary system whose di ...
The Reflector: January 2010 - Peterborough Astronomical Association
... Galaxy and the Andromeda Galaxy are supposed to collide. Right now we’re about 2.5 million light-years apart and racing towards each other. Happily for you and me, even if the Andromeda Galaxy was traveling at the speed of light, (and it’s not) there would be 2.5 million years before impact. That’s ...
... Galaxy and the Andromeda Galaxy are supposed to collide. Right now we’re about 2.5 million light-years apart and racing towards each other. Happily for you and me, even if the Andromeda Galaxy was traveling at the speed of light, (and it’s not) there would be 2.5 million years before impact. That’s ...
Review: How does a star`s mass determine its life story?
... • As a white dwarf’s mass approaches 1.4MSun, its electrons must move at nearly the speed of light. • Because nothing can move faster than light, a white dwarf cannot be more massive than 1.4MSun, the white dwarf limit (also known as the Chandrasekhar limit). ...
... • As a white dwarf’s mass approaches 1.4MSun, its electrons must move at nearly the speed of light. • Because nothing can move faster than light, a white dwarf cannot be more massive than 1.4MSun, the white dwarf limit (also known as the Chandrasekhar limit). ...
Implications of the Search and Discovery of Life in the Universe
... past or today – “I told you so” attitude may arise ...
... past or today – “I told you so” attitude may arise ...
The Northern Winter Constellations
... Orion to the left and slightly down, you will come across a very bright star called Sirius, which is also known as the Dog Star. (See the arrows in the diagram to the right). Sirius is the brightest star in the night sky so it is hard to miss. Once you’ve located Sirius you can locate the other star ...
... Orion to the left and slightly down, you will come across a very bright star called Sirius, which is also known as the Dog Star. (See the arrows in the diagram to the right). Sirius is the brightest star in the night sky so it is hard to miss. Once you’ve located Sirius you can locate the other star ...
rotation of the Earth
... the disc of the sun; and indeed the first transit of Venus was observed by Jeremiah Horrocks in 1639. The fact that the other three planets known at the time could travel round to lie exactly opposite the Sun on the sky, high above the horizon at midnight, meant that the Earth must sometimes lie bet ...
... the disc of the sun; and indeed the first transit of Venus was observed by Jeremiah Horrocks in 1639. The fact that the other three planets known at the time could travel round to lie exactly opposite the Sun on the sky, high above the horizon at midnight, meant that the Earth must sometimes lie bet ...
Aquarius (constellation)
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for ""water-carrier"" or ""cup-carrier"", and its symbol is 20px (Unicode ♒), a representation of water.Aquarius is one of the oldest of the recognized constellations along the zodiac (the sun's apparent path). It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.