Habitability: Good, Bad and the Ugly
... – Several stars in our galaxy with planets the size of Jupiter within terrestrial zone from their sun – Mass of star • Larger mass, greater luminosity, shorter life • Most abundant stars in galaxy are least luminous and longest-lived (red dwarfs) ...
... – Several stars in our galaxy with planets the size of Jupiter within terrestrial zone from their sun – Mass of star • Larger mass, greater luminosity, shorter life • Most abundant stars in galaxy are least luminous and longest-lived (red dwarfs) ...
Sample Math problems
... These problems are meant to be representative of what you need to know for the final. They are not exactly the problems that will appear in the final exam, but they do require the same set of skills. They might not cover all the formulas and equations that we have seen in the class. I recommend goin ...
... These problems are meant to be representative of what you need to know for the final. They are not exactly the problems that will appear in the final exam, but they do require the same set of skills. They might not cover all the formulas and equations that we have seen in the class. I recommend goin ...
Habitability: Good, Bad and the Ugly
... – Several stars in our galaxy with planets the size of Jupiter within terrestrial zone from their sun – Mass of star • Larger mass, greater luminosity, shorter life • Most abundant stars in galaxy are least luminous and longest-lived (red dwarfs) ...
... – Several stars in our galaxy with planets the size of Jupiter within terrestrial zone from their sun – Mass of star • Larger mass, greater luminosity, shorter life • Most abundant stars in galaxy are least luminous and longest-lived (red dwarfs) ...
system of seven planets discovered
... with Neptune-like masses, between 13 and 25 Earth masses, which orbit the star with periods ranging from about 6 to 600 days. The trace of two additional planets is also visible in the data. One would be a Saturn-like planet (with a minimum mass of 65 Earth masses) orbiting in 2200 days. The other w ...
... with Neptune-like masses, between 13 and 25 Earth masses, which orbit the star with periods ranging from about 6 to 600 days. The trace of two additional planets is also visible in the data. One would be a Saturn-like planet (with a minimum mass of 65 Earth masses) orbiting in 2200 days. The other w ...
Extra-Solar Planets - Buffalo State College
... its rotation and orbital periods, so it always presents the same face to its parent star - the planet becomes tidally locked to the star. ...
... its rotation and orbital periods, so it always presents the same face to its parent star - the planet becomes tidally locked to the star. ...
HR Diagram Practice Page
... 1. Which star is brighter? Aldeberan or Betelgeuse 2. Which star is cooler? Rigel or Mira 3. Which star is larger in size? Polaris or Alpha Centauri B 4. Which star has a higher temperature? Tau Ceti or Procyon B 5. Which star is hotter? Regulus or Deneb 6. Which star is smaller in size? Sun or Anta ...
... 1. Which star is brighter? Aldeberan or Betelgeuse 2. Which star is cooler? Rigel or Mira 3. Which star is larger in size? Polaris or Alpha Centauri B 4. Which star has a higher temperature? Tau Ceti or Procyon B 5. Which star is hotter? Regulus or Deneb 6. Which star is smaller in size? Sun or Anta ...
BAS Visit to the Norman Lockyer Observatory, October 2015
... Alpha Ceti is often used in works of science fiction, most notably in Star Trek: The Original Series. Alpha Ceti V was the planet on which Khan and his crew were exiled. ...
... Alpha Ceti is often used in works of science fiction, most notably in Star Trek: The Original Series. Alpha Ceti V was the planet on which Khan and his crew were exiled. ...
Exoplaneter & Venuspassagen
... 0.5% if the star has a planet at a distance of 1 AE. If 10% of the stars have a planet at a distance of 1 AE, the light from about 2000 stars need to be monitored continuoiusly during one year if the stars are of the same size as the Sun – to find one single ...
... 0.5% if the star has a planet at a distance of 1 AE. If 10% of the stars have a planet at a distance of 1 AE, the light from about 2000 stars need to be monitored continuoiusly during one year if the stars are of the same size as the Sun – to find one single ...
New planet discovered in Trinary star system
... orbiting the more remote members of trinary star systems for good periods of time. On the shorter end, the stellar system is anticipated to be 1-3 Until recently, astronomers were highly skeptical of billion years in aged, based on the amount of stellar whether or not planets should be possible in a ...
... orbiting the more remote members of trinary star systems for good periods of time. On the shorter end, the stellar system is anticipated to be 1-3 Until recently, astronomers were highly skeptical of billion years in aged, based on the amount of stellar whether or not planets should be possible in a ...
brightness
... advances. Telescopes and interferometers (a bunch of small telescopes mimicking a giant one) have become advanced enough to take actual pictures of exoplanets. 63 planets have been discovered by imaging. ...
... advances. Telescopes and interferometers (a bunch of small telescopes mimicking a giant one) have become advanced enough to take actual pictures of exoplanets. 63 planets have been discovered by imaging. ...
parallax in arc seconds
... called the Alpha Centauri System. Proxima Centauri has the largest known stellar parallax at 0.76”. ...
... called the Alpha Centauri System. Proxima Centauri has the largest known stellar parallax at 0.76”. ...
Unit 49-59 Review
... b. 9 times greater than the Sun c. 3 times greater than the Sun d. Cannot be determined with information given 22. If the surface temperature of a star is doubled, but its radius remains the same, its new luminosity is _____________ its old luminosity. a. 16 times smaller b. 4 times smaller c. the s ...
... b. 9 times greater than the Sun c. 3 times greater than the Sun d. Cannot be determined with information given 22. If the surface temperature of a star is doubled, but its radius remains the same, its new luminosity is _____________ its old luminosity. a. 16 times smaller b. 4 times smaller c. the s ...
Kepler`s Laws:
... 6. )A large object called Sedna has been found past the orbit of Pluto. Parallax measurements from the Hubble Space telescope indicate Sedna is at a distance of 990 A.U. Calculations indicate its average distance from the Sun is 532 A.U., and its Perihelion is at 76 A.U. Based on this information, i ...
... 6. )A large object called Sedna has been found past the orbit of Pluto. Parallax measurements from the Hubble Space telescope indicate Sedna is at a distance of 990 A.U. Calculations indicate its average distance from the Sun is 532 A.U., and its Perihelion is at 76 A.U. Based on this information, i ...
Cetus and Lepus
... The most notable star in Cetus is Mira ("the Wonderful"), designated Omicron Ceti, the first variable star to be discovered and the prototype of its class. Over a period of 332 days it reaches a maximum apparent magnitude of 3 - visible to the naked eye - and dips to a minimum magnitude of 10, invis ...
... The most notable star in Cetus is Mira ("the Wonderful"), designated Omicron Ceti, the first variable star to be discovered and the prototype of its class. Over a period of 332 days it reaches a maximum apparent magnitude of 3 - visible to the naked eye - and dips to a minimum magnitude of 10, invis ...
The Search for Low Mass Companions to White Dwarf Stars
... However, it may be that the atmospheres of Earthlike planets may be stripped away because of the strong giant star winds. We want to find planets around White Dwarfs to better understand the interaction between a star and ...
... However, it may be that the atmospheres of Earthlike planets may be stripped away because of the strong giant star winds. We want to find planets around White Dwarfs to better understand the interaction between a star and ...
Defining the Habitable Zone
... table below provides the planet’s name and average orbital distance to the Sun. ...
... table below provides the planet’s name and average orbital distance to the Sun. ...
Seven New Planets_1
... dwarf star TRAPPIST-1 which is 39 lightyears away from Earth (235 trillion miles), making it a prime candidate to search for signs of life. This group of planets are so closely positioned together, that the seventh planet takes only 21 days to orbit the star. Evidence suggests that if a person was s ...
... dwarf star TRAPPIST-1 which is 39 lightyears away from Earth (235 trillion miles), making it a prime candidate to search for signs of life. This group of planets are so closely positioned together, that the seventh planet takes only 21 days to orbit the star. Evidence suggests that if a person was s ...
Issue 28 The Latest in Astronomy and Physical
... Astronomers, using the Kepler Space Telescope, plus other space and ground based telescopes, have so far discovered 1783 confirmed planets, plus an additional 2900 possible planetary candidates. They have discovered several different varieties of these so-called exoplanets, including super-Jupiters, ...
... Astronomers, using the Kepler Space Telescope, plus other space and ground based telescopes, have so far discovered 1783 confirmed planets, plus an additional 2900 possible planetary candidates. They have discovered several different varieties of these so-called exoplanets, including super-Jupiters, ...
5-SolarSystem
... Uses the transit method and survey thousands of stars repeatedly at least 3 – 4 times to determine period and orbit of transiting planet. ...
... Uses the transit method and survey thousands of stars repeatedly at least 3 – 4 times to determine period and orbit of transiting planet. ...
Name: Period: ______ The Universe – Alien Planets If only 1% of
... The Universe – Alien Planets 1. If only 1% of stars have a planet like ours, how many other Earth’s are waiting to be discovered? 2. If other Earth’s are common, what else might be common? 3. What are the 3 types of planets that have been found so far? a. _____________________to their star and _____ ...
... The Universe – Alien Planets 1. If only 1% of stars have a planet like ours, how many other Earth’s are waiting to be discovered? 2. If other Earth’s are common, what else might be common? 3. What are the 3 types of planets that have been found so far? a. _____________________to their star and _____ ...
The Universe – Alien Planets Page 1 of 2 1. If only 1% of
... The Universe – Alien Planets 1. If only 1% of stars have a planet like ours, how many other Earth’s are waiting to be discovered? 2. If other Earth’s are common, what else might be common? 3. What are the 3 types of planets that have been found so far? a. _____________________to their star and _____ ...
... The Universe – Alien Planets 1. If only 1% of stars have a planet like ours, how many other Earth’s are waiting to be discovered? 2. If other Earth’s are common, what else might be common? 3. What are the 3 types of planets that have been found so far? a. _____________________to their star and _____ ...
Astronomy Campus Assessment
... Scientists measure the movement of distant galaxies to learn more about the origin of the universe. You researched scientific data that showed that light from a distant galaxy is red-shifted. How would you evaluate the data? A. It indicates that the expansion of the universe has stopped, and so it d ...
... Scientists measure the movement of distant galaxies to learn more about the origin of the universe. You researched scientific data that showed that light from a distant galaxy is red-shifted. How would you evaluate the data? A. It indicates that the expansion of the universe has stopped, and so it d ...
The Application of Forbidden Line X-Ray Diagnostics to the Hot Star
... X-Ray Diagnostics to the Hot Star Tau Sco ...
... X-Ray Diagnostics to the Hot Star Tau Sco ...
Tau Ceti
Tau Ceti (τ Cet, τ Ceti) is a star in the constellation Cetus that is spectrally similar to the Sun, although it has only about 78% of the Sun's mass. At a distance of just under 12 light-years from the Solar System, it is a relatively nearby star, and is the closest solitary G-class star. The star appears stable, with little stellar variation, and is metal-deficient.Observations have detected more than ten times as much dust surrounding Tau Ceti as is present in the Solar System. Since December 2012, there has been evidence of possibly five planets orbiting Tau Ceti, with two of these being potentially in the habitable zone. Because of its debris disk, any planet orbiting Tau Ceti would face far more impact events than Earth. Despite this hurdle to habitability, its solar analog (Sun-like) characteristics have led to widespread interest in the star. Given its stability, similarity and relative proximity to the Sun, Tau Ceti is consistently listed as a target for the Search for Extra-Terrestrial Intelligence (SETI), and it appears in some science fiction literature.It can be seen with the unaided eye as a third-magnitude star. As seen from Tau Ceti, the Sun would be a third-magnitude star in the constellation Boötes.