The Kepler spacecraft has found thousands of likely extrasolar
... changes in their light that can signal one or more orbiting worlds. That’s how they’ve found nearly all of the more than 1,070 confirmed exoplanets so far. In one detection method, for example, scientists analyze how light from a star shifts slightly due to an orbiting planet’s gravitational force. ...
... changes in their light that can signal one or more orbiting worlds. That’s how they’ve found nearly all of the more than 1,070 confirmed exoplanets so far. In one detection method, for example, scientists analyze how light from a star shifts slightly due to an orbiting planet’s gravitational force. ...
AN INTRODUCTION TO THE STARS AND CONSTELLATIONS
... By what fraction of a revolution did it turn? ...
... By what fraction of a revolution did it turn? ...
Stars with Great Attraction - Max-Planck
... for Astrophysics aren’t really interested in fiction, as magnetars are exciting enough for science, as well. The objects have a turbulent history. They form upon the spectacular death of a sun, a supernova, when a star with a mass of between 8 and 20 solar masses has gotten itself into an energy cri ...
... for Astrophysics aren’t really interested in fiction, as magnetars are exciting enough for science, as well. The objects have a turbulent history. They form upon the spectacular death of a sun, a supernova, when a star with a mass of between 8 and 20 solar masses has gotten itself into an energy cri ...
Name
... A) Two 1 kg balls that are 1 meter apart. B) Two bodies each with the mass of the Sun that are one light year apart. C) Two bodies each with the mass of the Earth that are 1 AU apart. D) Two bodies each with the mass of Jupiter that are 10 AU apart. E) Two 100 kg balls that are 1 km apart. 18) Which ...
... A) Two 1 kg balls that are 1 meter apart. B) Two bodies each with the mass of the Sun that are one light year apart. C) Two bodies each with the mass of the Earth that are 1 AU apart. D) Two bodies each with the mass of Jupiter that are 10 AU apart. E) Two 100 kg balls that are 1 km apart. 18) Which ...
Name
... A) Two 1 kg balls that are 1 meter apart. B) Two bodies each with the mass of the Sun that are one light year apart. C) Two bodies each with the mass of the Earth that are 1 AU apart. D) Two 100 kg balls that are 1 km apart. E) Two bodies each with the mass of Jupiter that are 10 AU apart. 18) Which ...
... A) Two 1 kg balls that are 1 meter apart. B) Two bodies each with the mass of the Sun that are one light year apart. C) Two bodies each with the mass of the Earth that are 1 AU apart. D) Two 100 kg balls that are 1 km apart. E) Two bodies each with the mass of Jupiter that are 10 AU apart. 18) Which ...
Name
... A) Two 1 kg balls that are 1 meter apart. B) Two bodies each with the mass of the Sun that are one light year apart. C) Two bodies each with the mass of the Earth that are 1 AU apart. D) Two bodies each with the mass of Jupiter that are 10 AU apart. E) Two 100 kg balls that are 1 km apart. 18) Which ...
... A) Two 1 kg balls that are 1 meter apart. B) Two bodies each with the mass of the Sun that are one light year apart. C) Two bodies each with the mass of the Earth that are 1 AU apart. D) Two bodies each with the mass of Jupiter that are 10 AU apart. E) Two 100 kg balls that are 1 km apart. 18) Which ...
Jeopardy
... True or False: Even the smallest amount of dust makes it hard for astronomers see light from distant stars? ...
... True or False: Even the smallest amount of dust makes it hard for astronomers see light from distant stars? ...
Inside the Rainbow
... Finally, two scientists figured out what the black lines meant. Gustav Kirchhoff and Robert Wilhelm Bunsen, working together in a laboratory, held various elements in the flame of a Bunsen burner. When the element was heated to the point that it glowed, they used a prism to separate the light it emi ...
... Finally, two scientists figured out what the black lines meant. Gustav Kirchhoff and Robert Wilhelm Bunsen, working together in a laboratory, held various elements in the flame of a Bunsen burner. When the element was heated to the point that it glowed, they used a prism to separate the light it emi ...
mars, antares, the sting and more
... TO FIND THE SCORPION, LOOK JUST ABOVE THE HORIZON FOR STARS THAT FORM A FISHHOOK SHAPE. IT'S A LITTLE TOUGHER TO SEE THE DISTINCT OUTLINE OF THE CONSTELLATION SINCE THERE ARE TWO VISITING PLANETS AMONG THE NORMAL STARS OF THE SCORPION. BUT BE PATIENT, WE'LL GET TO THOSE SOON ENOUGH. JAMES: IT MAY BE ...
... TO FIND THE SCORPION, LOOK JUST ABOVE THE HORIZON FOR STARS THAT FORM A FISHHOOK SHAPE. IT'S A LITTLE TOUGHER TO SEE THE DISTINCT OUTLINE OF THE CONSTELLATION SINCE THERE ARE TWO VISITING PLANETS AMONG THE NORMAL STARS OF THE SCORPION. BUT BE PATIENT, WE'LL GET TO THOSE SOON ENOUGH. JAMES: IT MAY BE ...
Lucas - WordPress.com
... Libra is a fainter constellation, but easy enough to spot, once you’re familiar with the shape. It lies along the ecliptic (the plane of the Solar System), so planets pass through now and then. The names of the two brightest stars of Libra, which are Zubeneschamali and Zubenelgenubi, come form Arabi ...
... Libra is a fainter constellation, but easy enough to spot, once you’re familiar with the shape. It lies along the ecliptic (the plane of the Solar System), so planets pass through now and then. The names of the two brightest stars of Libra, which are Zubeneschamali and Zubenelgenubi, come form Arabi ...
Integrative Studies 410 Our Place in the Universe
... as far as we can see Cepheids – about 50 million ly • In 1920 Hubble used this technique to measure the distance to Andromeda (about 2 million ly) • Works best for periodic variables ...
... as far as we can see Cepheids – about 50 million ly • In 1920 Hubble used this technique to measure the distance to Andromeda (about 2 million ly) • Works best for periodic variables ...
Night Sky Checklist October–November
... Delta Cephei is another variable star, this time one that actually varies its brightness over a period of about 5.4 days. Although it is fairly faint even at its best at magnitude 3.6, there are some similar brightness stars near it that help observers notice when its brightness drops off. Algol is ...
... Delta Cephei is another variable star, this time one that actually varies its brightness over a period of about 5.4 days. Although it is fairly faint even at its best at magnitude 3.6, there are some similar brightness stars near it that help observers notice when its brightness drops off. Algol is ...
Hertzsprung-Russell Diagram—key to understanding properties of stars. 26 Sept
... – A show highlighting the current sky, spectacular gatherings of Venus with the moon and other planets in coming months. See what Galileo saw through his telescope 400 years ago— the Milky Way and the Pleiades, details on the moon, the four moons of Jupiter, the phases of Venus, and the mysterious d ...
... – A show highlighting the current sky, spectacular gatherings of Venus with the moon and other planets in coming months. See what Galileo saw through his telescope 400 years ago— the Milky Way and the Pleiades, details on the moon, the four moons of Jupiter, the phases of Venus, and the mysterious d ...
here - British Astronomical Association
... • It’s simple and fascinating to watch stars that are billions of miles away changing in brightness, and to learn about these systems from data that is obtained using your own eyes. • Your data, when combined with other observers’ data can be valuable and unique, and can make a real contribution to ...
... • It’s simple and fascinating to watch stars that are billions of miles away changing in brightness, and to learn about these systems from data that is obtained using your own eyes. • Your data, when combined with other observers’ data can be valuable and unique, and can make a real contribution to ...
Astronomical Knowledge Questionnaire (Student
... Galaxies are expanding into empty space. Groups of galaxies appear to move away from each other. Nearby galaxies are younger than distant galaxies. I do not know the answer to this question. 11 Stars begin life as … a cloud of gas and dust. a piece that comes from a star or planet. a w ...
... Galaxies are expanding into empty space. Groups of galaxies appear to move away from each other. Nearby galaxies are younger than distant galaxies. I do not know the answer to this question. 11 Stars begin life as … a cloud of gas and dust. a piece that comes from a star or planet. a w ...
hwk01ans
... your reasoning. Answer: The Sun has luminosity L = about 3.9 × 10 26 W, which is more powerful than the light bulb by a factor of 3.9 × 10 24 . This factor corresponds to a magnitude difference of about 61.5. Since the Sun has absolute bolometric magnitude + 4.8, the light bulb must have roughly M ...
... your reasoning. Answer: The Sun has luminosity L = about 3.9 × 10 26 W, which is more powerful than the light bulb by a factor of 3.9 × 10 24 . This factor corresponds to a magnitude difference of about 61.5. Since the Sun has absolute bolometric magnitude + 4.8, the light bulb must have roughly M ...
Massive Star (10 to 15 times the size of our Sun) Nuclear Fusion
... No fusion => no force to balance gravity ...
... No fusion => no force to balance gravity ...
Extra-Solar Life: Habitable Zones
... for life, then there is a limited volume of any stellar system where that might exist – the Habitable Zone • If we assume temperature is dominated by sun/starlight, then the HZ can be calculated for any given star • Likely star types for life are F, G, and K stars (bigger stars die fast; M stars hav ...
... for life, then there is a limited volume of any stellar system where that might exist – the Habitable Zone • If we assume temperature is dominated by sun/starlight, then the HZ can be calculated for any given star • Likely star types for life are F, G, and K stars (bigger stars die fast; M stars hav ...
Activity: Doppler Effect
... green dot represents the Earth. This diagram is NOT TO SCALE. • The bottom panel shows the combined absorption-line spectrum of the stars (with the lines from each star labeled “A” and “B”). A thin "stationary" absorption line appearing between the two lines shows the un-shifted location of each lin ...
... green dot represents the Earth. This diagram is NOT TO SCALE. • The bottom panel shows the combined absorption-line spectrum of the stars (with the lines from each star labeled “A” and “B”). A thin "stationary" absorption line appearing between the two lines shows the un-shifted location of each lin ...
WORD - UWL faculty websites
... green dot represents the Earth. This diagram is NOT TO SCALE. The bottom panel shows the combined absorption-line spectrum of the stars (with the lines from each star labeled “A” and “B”). A thin "stationary" absorption line appearing between the two lines shows the un-shifted location of each lin ...
... green dot represents the Earth. This diagram is NOT TO SCALE. The bottom panel shows the combined absorption-line spectrum of the stars (with the lines from each star labeled “A” and “B”). A thin "stationary" absorption line appearing between the two lines shows the un-shifted location of each lin ...
Time and Diurnal Motion
... • Eudoxus (360 BC) makes early map of constellations • Hipparchus (130 BC) made a star catalog of 850 stars with some sort of coordinates • Claudius Ptolemy (150 A.D.?): The first really accurate map, 48 constellations, 1025 stars with measured ecliptic longitude & latitude ...
... • Eudoxus (360 BC) makes early map of constellations • Hipparchus (130 BC) made a star catalog of 850 stars with some sort of coordinates • Claudius Ptolemy (150 A.D.?): The first really accurate map, 48 constellations, 1025 stars with measured ecliptic longitude & latitude ...
Sirius Astronomer - Orange County Astronomers
... jets of material spewing out from both ends. One surprise is that the jets were not located at the warm point (directly under the sun), but were spread about both the day and night sides. The “neck” of the bowling pin shape is much smoother than the rest, probably coated in thick dust. No jets appea ...
... jets of material spewing out from both ends. One surprise is that the jets were not located at the warm point (directly under the sun), but were spread about both the day and night sides. The “neck” of the bowling pin shape is much smoother than the rest, probably coated in thick dust. No jets appea ...
The Solar Neighborhood
... stars and leave the main sequence sooner. In a cluster in which all the stars formed at the same time, the stars “peel off” the main sequence from the top, leaving only progressively less and less massive stars remaining on the main sequence as time goes by. The main sequence turnoff is the point on ...
... stars and leave the main sequence sooner. In a cluster in which all the stars formed at the same time, the stars “peel off” the main sequence from the top, leaving only progressively less and less massive stars remaining on the main sequence as time goes by. The main sequence turnoff is the point on ...
IK Pegasi
IK Pegasi (or HR 8210) is a binary star system in the constellation Pegasus. It is just luminous enough to be seen with the unaided eye, at a distance of about 150 light years from the Solar System.The primary (IK Pegasi A) is an A-type main-sequence star that displays minor pulsations in luminosity. It is categorized as a Delta Scuti variable star and it has a periodic cycle of luminosity variation that repeats itself about 22.9 times per day. Its companion (IK Pegasi B) is a massive white dwarf—a star that has evolved past the main sequence and is no longer generating energy through nuclear fusion. They orbit each other every 21.7 days with an average separation of about 31 million kilometres, or 19 million miles, or 0.21 astronomical units (AU). This is smaller than the orbit of Mercury around the Sun.IK Pegasi B is the nearest known supernova progenitor candidate. When the primary begins to evolve into a red giant, it is expected to grow to a radius where the white dwarf can accrete matter from the expanded gaseous envelope. When the white dwarf approaches the Chandrasekhar limit of 1.44 solar masses (M☉), it may explode as a Type Ia supernova.