![Celestial Motion](http://s1.studyres.com/store/data/000827622_1-606aaf9356646d73890f1f802770fab6-300x300.png)
Celestial Motion
... • Like most scientists, Astronomers aim to answer specific questions • What kind of questions do you think Astronomers are trying to answer? ...
... • Like most scientists, Astronomers aim to answer specific questions • What kind of questions do you think Astronomers are trying to answer? ...
The Drake Equation
... that essentially all stars have planetary systems. A caveat: Note that extrasolar planets have very different characteristics than the planets of the Solar System. ...
... that essentially all stars have planetary systems. A caveat: Note that extrasolar planets have very different characteristics than the planets of the Solar System. ...
Lecture22 - Indiana University Astronomy
... Around Epsilon Indi (Spectral type K5: about one-tenth the Sun's luminosity), an Earth-sized planet would have to orbit at about the distance of Mercury from the star. ...
... Around Epsilon Indi (Spectral type K5: about one-tenth the Sun's luminosity), an Earth-sized planet would have to orbit at about the distance of Mercury from the star. ...
outer planets
... rings. They are made of different sized bits of ice and rock that orbit the planet. ...
... rings. They are made of different sized bits of ice and rock that orbit the planet. ...
Spring 2015-ASTR 201 Homework #6 solutions
... orbits of the planet. The planet’s orbit needs to be aligned “just right” (edge-on orbit) so that we observe as it passes in front of their star as seen from Earth; so the method only works for a small fraction of planetary systems. The method is biased towards close-in, larger planets with short or ...
... orbits of the planet. The planet’s orbit needs to be aligned “just right” (edge-on orbit) so that we observe as it passes in front of their star as seen from Earth; so the method only works for a small fraction of planetary systems. The method is biased towards close-in, larger planets with short or ...
Review Game
... occurs. How large must this Jovian be, given that the diameter of Jupiter is about 1/10 the Sun's diameter? 15) What do astronomers use to determine the composition of a planet? 16) Why do some scientists think that Jupiter's existence may have been critical for life to evolve on Earth? 17) What def ...
... occurs. How large must this Jovian be, given that the diameter of Jupiter is about 1/10 the Sun's diameter? 15) What do astronomers use to determine the composition of a planet? 16) Why do some scientists think that Jupiter's existence may have been critical for life to evolve on Earth? 17) What def ...
Lesson Plan/Correlations
... as these planets block more light, complete their orbits faster, reflect more light, and can have a greater measurable gravitational effect on their parent star. J. What makes Earth special compared to other known planets? Earth is the only known planet in the universe to harbor life. K. Do you thin ...
... as these planets block more light, complete their orbits faster, reflect more light, and can have a greater measurable gravitational effect on their parent star. J. What makes Earth special compared to other known planets? Earth is the only known planet in the universe to harbor life. K. Do you thin ...
lec02_29sep2010
... is distance independent (S/N is not!) First (written) proposal by Otto Struve, The Observatory 72, p. 199-200 (1952) 51 Peg announced in 1995 (PSR 1257+12 in 1992). ...
... is distance independent (S/N is not!) First (written) proposal by Otto Struve, The Observatory 72, p. 199-200 (1952) 51 Peg announced in 1995 (PSR 1257+12 in 1992). ...
The Inner Planets
... planets during most of its orbit • Dense atmosphere, only outer planet with a solid rocky surface • Some people feel that Pluto was a moon that escaped from its orbit around Neptune • Only moon – Charon (considered the double planet) ...
... planets during most of its orbit • Dense atmosphere, only outer planet with a solid rocky surface • Some people feel that Pluto was a moon that escaped from its orbit around Neptune • Only moon – Charon (considered the double planet) ...
Discovery of Extrasolar Planets - WSU Astronomy.
... around which the planets orbit are not too different from the sun. They are nearby, often fairly bright, and some of them have been in star catalogs for centuries. We detect planets around them by the reflex motion of the star caused by the gravitational tug of the planet. In the illustration above, ...
... around which the planets orbit are not too different from the sun. They are nearby, often fairly bright, and some of them have been in star catalogs for centuries. We detect planets around them by the reflex motion of the star caused by the gravitational tug of the planet. In the illustration above, ...
ph709-11
... orbiting around the star COROT-7. It was detected by the French-led COROT mission in 2009. It is the smallest exoplanet to have its diameter measured, at 1.7 times that of the Earth (which would give it a volume 4.9 times Earth's). The mass of COROT-7b is about 4.8 Earth masses,[2] so its density is ...
... orbiting around the star COROT-7. It was detected by the French-led COROT mission in 2009. It is the smallest exoplanet to have its diameter measured, at 1.7 times that of the Earth (which would give it a volume 4.9 times Earth's). The mass of COROT-7b is about 4.8 Earth masses,[2] so its density is ...
ph709-13
... and 1.9 times that of Earth. Theoretical modelling of two of these superEarths, Kepler-62e and Kepler-62f, suggests both could be solid, either rocky or rocky with frozen water. ...
... and 1.9 times that of Earth. Theoretical modelling of two of these superEarths, Kepler-62e and Kepler-62f, suggests both could be solid, either rocky or rocky with frozen water. ...
STUDY OF EXTRA SOLAR EXOPLANET SYSTEMS BY METHOD
... By the beginning of 2015, astronomers have identified a total of 65 exoplanets within 50 light-years (15 pc) of the Earth, but the existence of at least another 35 unconfirmed exoplanets has been proposed. This corresponds to only 35 stars with confirmed planetary systems (and eleven with only uncon ...
... By the beginning of 2015, astronomers have identified a total of 65 exoplanets within 50 light-years (15 pc) of the Earth, but the existence of at least another 35 unconfirmed exoplanets has been proposed. This corresponds to only 35 stars with confirmed planetary systems (and eleven with only uncon ...
The Universe presentation
... o Then there is an asteroid belt, full of asteroids between Mars and Jupiter. o Jupiter, Saturn, Uranus and Neptune are the outer planets. o I bet you’re wondering, “where’s Pluto?” Scientists have made the ...
... o Then there is an asteroid belt, full of asteroids between Mars and Jupiter. o Jupiter, Saturn, Uranus and Neptune are the outer planets. o I bet you’re wondering, “where’s Pluto?” Scientists have made the ...
SDSU Press Release - San Diego State University
... confirm, since it is easier to find big planets than small ones,” said SDSU astronomer Jerome Orosz, another coauthor on the study. “It took so long to confirm because its orbital period is so long.” The planet takes 1,107 days (just over 3 years) to orbit its host stars, the longest period of any c ...
... confirm, since it is easier to find big planets than small ones,” said SDSU astronomer Jerome Orosz, another coauthor on the study. “It took so long to confirm because its orbital period is so long.” The planet takes 1,107 days (just over 3 years) to orbit its host stars, the longest period of any c ...
New Planet Is Largest Discovered That Orbits Two Suns
... confirm, since it is easier to find big planets than small ones,” said SDSU astronomer Jerome Orosz, another coauthor on the study. “It took so long to confirm because its orbital period is so long.” The planet takes 1,107 days (just over 3 years) to orbit its host stars, the longest period of any c ...
... confirm, since it is easier to find big planets than small ones,” said SDSU astronomer Jerome Orosz, another coauthor on the study. “It took so long to confirm because its orbital period is so long.” The planet takes 1,107 days (just over 3 years) to orbit its host stars, the longest period of any c ...
ph709-08
... new analyses showed not only water vapor, but also methane existing in the atmosphere of the giant gas planet. Although conditions on HD 189733 b are too harsh to harbor life, it still is the first time a key molecule for organic life was found on an extrasolar planet.[51] 2008, HD 40307 On June 16, ...
... new analyses showed not only water vapor, but also methane existing in the atmosphere of the giant gas planet. Although conditions on HD 189733 b are too harsh to harbor life, it still is the first time a key molecule for organic life was found on an extrasolar planet.[51] 2008, HD 40307 On June 16, ...
Astronomers discover a highly inflated sub
... observations from the Spitzer Space Telescope to better measure the planet properties, and they are currently discussing observations with the Hubble Space Telescope and other observatories to star probing the planet's atmosphere. More information: KELT-11b: A Highly Inflated Sub-Saturn Exoplanet Tr ...
... observations from the Spitzer Space Telescope to better measure the planet properties, and they are currently discussing observations with the Hubble Space Telescope and other observatories to star probing the planet's atmosphere. More information: KELT-11b: A Highly Inflated Sub-Saturn Exoplanet Tr ...
Habitability of planets on eccentric orbits: limits of the mean flux
... the climate of aqua planets in synchronous rotation receiving a mean flux equal to Earth’s (1366 W/m2 ), around stars of luminosity ranging from L? = 1 L to 10−4 L and of orbital eccentricity from 0 to 0.9. The atmosphere is composed of N2 , CO2 and H2 O (gas, liquid, solid) in Earth-like proporti ...
... the climate of aqua planets in synchronous rotation receiving a mean flux equal to Earth’s (1366 W/m2 ), around stars of luminosity ranging from L? = 1 L to 10−4 L and of orbital eccentricity from 0 to 0.9. The atmosphere is composed of N2 , CO2 and H2 O (gas, liquid, solid) in Earth-like proporti ...
Solar System Study Guide Test Friday, March 10, 2017
... What causes the moon’s phases? The moon’s orbiting the Earth What explains why we have 365 days in one year? Time it takes the Earth to make one complete orbit around the sun Which planets are considered the inner planets? Mercury, Venus, Earth and Mars Which planets are considered the outer planets ...
... What causes the moon’s phases? The moon’s orbiting the Earth What explains why we have 365 days in one year? Time it takes the Earth to make one complete orbit around the sun Which planets are considered the inner planets? Mercury, Venus, Earth and Mars Which planets are considered the outer planets ...
the search for planets - Cosmos
... planets presently known have been discovered by this technique. It is most sensitive to massive planets orbiting close to the star; Earth mass planets cannot be detected through radial velocity techniques. ...
... planets presently known have been discovered by this technique. It is most sensitive to massive planets orbiting close to the star; Earth mass planets cannot be detected through radial velocity techniques. ...
Astronomy of extrasolar planetary systems
... 1983 was an important year in planet detection history. At that time, Smith and Terrile have detected the first circumstellar debris disk (ß Pictoris). It was a spectacular confirmation of the prediction based on the known structure of the Solar System: disks and then planets should be a natural byp ...
... 1983 was an important year in planet detection history. At that time, Smith and Terrile have detected the first circumstellar debris disk (ß Pictoris). It was a spectacular confirmation of the prediction based on the known structure of the Solar System: disks and then planets should be a natural byp ...
december 2012 - Holt Planetarium
... his life to talking about astronomy at any opportunity – not out of a desire to make a name for himself or to further an agenda, but because he thought the world would be a better place if he did so.” A sun-like star in our solar system's backyard may host five planets, including one perhaps capable ...
... his life to talking about astronomy at any opportunity – not out of a desire to make a name for himself or to further an agenda, but because he thought the world would be a better place if he did so.” A sun-like star in our solar system's backyard may host five planets, including one perhaps capable ...
Super-Earth
![](https://commons.wikimedia.org/wiki/Special:FilePath/Exoplanet_Comparison_CoRoT-7_b.png?width=300)
A super-Earth is an extrasolar planet with a mass higher than Earth's, but substantially below the mass of the Solar System's ice giants Uranus and Neptune, which are 15 and 17 Earth masses respectively. The term super-Earth refers only to the mass of the planet, and does not imply anything about the surface conditions or habitability. The alternative term ""gas dwarfs"" may be more accurate for those at the higher end of the mass scale, as suggested by MIT professor Sara Seager, although mini-Neptunes is more common.