Can you figure out which of the stars shown here have planets
... Our sun is also a star, and we know of eight planets that orbit it. Can you name them all? You can see most of them in the night sky, but Uranus and Neptune are too faint to be seen -- they weren't discovered until astronomers started using telescopes. Uranus was discovered by accident, and soon ast ...
... Our sun is also a star, and we know of eight planets that orbit it. Can you name them all? You can see most of them in the night sky, but Uranus and Neptune are too faint to be seen -- they weren't discovered until astronomers started using telescopes. Uranus was discovered by accident, and soon ast ...
MS Word version
... Question 4: The two end stars of the Big Dipper are known as the “pointer stars” since a line drawn through them points toward Polaris (a very important marker in the sky since it is located very near the NCP). Use the constellations control to add the Big Dipper to the celestial sphere. Now manipul ...
... Question 4: The two end stars of the Big Dipper are known as the “pointer stars” since a line drawn through them points toward Polaris (a very important marker in the sky since it is located very near the NCP). Use the constellations control to add the Big Dipper to the celestial sphere. Now manipul ...
Glossary Topics - Home - DMNS Galaxy Guide Portal
... Wide Double – two stars that can easily be resolved (seen as separate stars) Visual Double/Binary – two stars that can be resolved with the naked eye or a telescope. Spectroscopic Double/Binary – two stars that can only be recognized as separate stars when looking at their spectra for Doppler ...
... Wide Double – two stars that can easily be resolved (seen as separate stars) Visual Double/Binary – two stars that can be resolved with the naked eye or a telescope. Spectroscopic Double/Binary – two stars that can only be recognized as separate stars when looking at their spectra for Doppler ...
The Milky Way`s Restless Swarms of Stars
... several light-years of our sun, cluster aliens would face a vista of 100,000 stars or more. Astronomers would have crisp views of binary partners that whip around each other in hours or minutes, pulsars that spin nearly 1000 times every second, and perhaps a nest of neutron stars or the event horizo ...
... several light-years of our sun, cluster aliens would face a vista of 100,000 stars or more. Astronomers would have crisp views of binary partners that whip around each other in hours or minutes, pulsars that spin nearly 1000 times every second, and perhaps a nest of neutron stars or the event horizo ...
Recipes for ULX formation: necessary ingredients and garnishments
... a compelling need to invoke intermediate-mass BHs in ULXs, and that the upper mass limit is likely to be somewhere between 50 and 200M . Correspondingly, if dynamical collapse and merger processes are still needed to form a very massive stellar progenitor (> 100M ), clusters as small as ∼ 104 M m ...
... a compelling need to invoke intermediate-mass BHs in ULXs, and that the upper mass limit is likely to be somewhere between 50 and 200M . Correspondingly, if dynamical collapse and merger processes are still needed to form a very massive stellar progenitor (> 100M ), clusters as small as ∼ 104 M m ...
Stars, Galaxies, and the Universe Section 1 Distances to Stars
... from Earth, is caused by the movement of Earth. • The stars seem as though they are moving counterclockwise around a central star called Polaris, the North Star. Polaris is almost directly above the North Pole, and thus the star does not appear to move much. • Earth’s revolution around the sun cause ...
... from Earth, is caused by the movement of Earth. • The stars seem as though they are moving counterclockwise around a central star called Polaris, the North Star. Polaris is almost directly above the North Pole, and thus the star does not appear to move much. • Earth’s revolution around the sun cause ...
No Slide Title
... 7-11.Crab Nebula-In 1054 AD the chinese recorded a bright new star seen in daylight for quite a long time.It was a Supernova and we see the remnants in these pictures.The first four show it as seen in four different regions of the electromagnetic spectrum[UV,visible,IR,X-ray].The final picture shows ...
... 7-11.Crab Nebula-In 1054 AD the chinese recorded a bright new star seen in daylight for quite a long time.It was a Supernova and we see the remnants in these pictures.The first four show it as seen in four different regions of the electromagnetic spectrum[UV,visible,IR,X-ray].The final picture shows ...
Right Ascension
... Stars – masses The difficulty with binaries is that normally, we don't know how the plane of the orbit is orientated. This complicates the determination of masses. For this reason, eclipsing binaries are very useful. These are binary stars where once per orbit, one star passes in front of the other ...
... Stars – masses The difficulty with binaries is that normally, we don't know how the plane of the orbit is orientated. This complicates the determination of masses. For this reason, eclipsing binaries are very useful. These are binary stars where once per orbit, one star passes in front of the other ...
2012 New York State Science Olympiad Astronomy
... c. Convert the distance obtained in part b to light-years, kilometers, astronomical units, and Bohr radii (1 point each) ...
... c. Convert the distance obtained in part b to light-years, kilometers, astronomical units, and Bohr radii (1 point each) ...
Planetarium Key Points
... The stars seem numberless and there are actually more than 2 billions of stars in the system we live in (Milky Way), but only 3000 stars are visible at naked eye What we see is NOT what it is actually, the response of our eye is logarithmic not linear All celestial objects seem at the same dis ...
... The stars seem numberless and there are actually more than 2 billions of stars in the system we live in (Milky Way), but only 3000 stars are visible at naked eye What we see is NOT what it is actually, the response of our eye is logarithmic not linear All celestial objects seem at the same dis ...
Polaris
... yellow Cepheid variable (α UMi A), orbited by a bright yellow dwarf (α UMi B) at a distance of about 2400 AU (360 billion kilometers, or 224 billion miles). Polaris B can be seen with even a modest telescope and was first noticed by William Herschel in 1780. In 1929, it was discovered by examining t ...
... yellow Cepheid variable (α UMi A), orbited by a bright yellow dwarf (α UMi B) at a distance of about 2400 AU (360 billion kilometers, or 224 billion miles). Polaris B can be seen with even a modest telescope and was first noticed by William Herschel in 1780. In 1929, it was discovered by examining t ...
Lecture 3
... • We live on the outskirts of a pretty good-sized spiral galaxy composed of about 100 billion stars. • There are only about 6000 stars that you can see with the unaided eye -- not even the tip of the iceberg. • At a dark site, you can see a diffuse glow tracing and arc across the sky. This is the Mi ...
... • We live on the outskirts of a pretty good-sized spiral galaxy composed of about 100 billion stars. • There are only about 6000 stars that you can see with the unaided eye -- not even the tip of the iceberg. • At a dark site, you can see a diffuse glow tracing and arc across the sky. This is the Mi ...
MS Word version
... Question 5: The two end stars of the Big Dipper are known as the “pointer stars” since a line drawn through them points toward Polaris (a very important marker in the sky since it is located very near the NCP). Use the constellations control to add the Big Dipper to the celestial sphere. Now manipul ...
... Question 5: The two end stars of the Big Dipper are known as the “pointer stars” since a line drawn through them points toward Polaris (a very important marker in the sky since it is located very near the NCP). Use the constellations control to add the Big Dipper to the celestial sphere. Now manipul ...
Star Formation
... if it were not able to radiate away its thermal energy? A. It would continue contracting, but its temperature would not change B. Its mass would increase C. Its internal pressure would increase ...
... if it were not able to radiate away its thermal energy? A. It would continue contracting, but its temperature would not change B. Its mass would increase C. Its internal pressure would increase ...
THE ORION CONSTELLATION the Great Hunter
... photographed objects in the night sky, and is among the most intensely studied celestial features. The nebula has revealed much about the process of how stars and planetary systems are formed from collapsing clouds of gas and dust. Astronomers have directly observed protoplanetary disks, brown dwarf ...
... photographed objects in the night sky, and is among the most intensely studied celestial features. The nebula has revealed much about the process of how stars and planetary systems are formed from collapsing clouds of gas and dust. Astronomers have directly observed protoplanetary disks, brown dwarf ...
Lecture7
... As the contraction of the core proceeds further and the core heats up, and when the central Tc reaches ~108 K, it is sufficiently high to trigger He burning, where He changes to carbon C and oxygen O (see FK p. 541). This He burning is called `triple process’, because He nuclei are called parti ...
... As the contraction of the core proceeds further and the core heats up, and when the central Tc reaches ~108 K, it is sufficiently high to trigger He burning, where He changes to carbon C and oxygen O (see FK p. 541). This He burning is called `triple process’, because He nuclei are called parti ...
More detailed notes - Particle Physics and Particle Astrophysics
... that the central temperature isn’t well represented by the surface temperature—an outwardly cool red supergiant may be fusing helium in its interior). Mainsequence stars above about 1.1 solar masses generate almost all their energy by the CNO cycle, but it accounts for only about 1% of the Sun’s ene ...
... that the central temperature isn’t well represented by the surface temperature—an outwardly cool red supergiant may be fusing helium in its interior). Mainsequence stars above about 1.1 solar masses generate almost all their energy by the CNO cycle, but it accounts for only about 1% of the Sun’s ene ...
Linking Asteroids and Meteorites through Reflectance
... • Oxygen-neon-magnesium white dwarfs can also form (hot enough to fuse carbon but not neon) • Helium white dwarfs can form ...
... • Oxygen-neon-magnesium white dwarfs can also form (hot enough to fuse carbon but not neon) • Helium white dwarfs can form ...
AAS Poster, NM 2002: "The Discovery of New
... spectroscopically confirmed WR stars and diamonds are the “control field”. The smallest ellipse contains likely non-WR stars. Progressing in size, the next region contains 25 questionable candidates, followed by a larger region containing an additional 10 probable WR candidates. The largest region c ...
... spectroscopically confirmed WR stars and diamonds are the “control field”. The smallest ellipse contains likely non-WR stars. Progressing in size, the next region contains 25 questionable candidates, followed by a larger region containing an additional 10 probable WR candidates. The largest region c ...
How big are stars? How do we know?
... b) relatively cool giant stars that are relatively close to the Sun. c) relatively cool main-sequence stars that are relatively far from the Sun. d) relatively cool main-sequence stars that are relatively close to the Sun. e) giant stars and relatively hot main sequence stars. ...
... b) relatively cool giant stars that are relatively close to the Sun. c) relatively cool main-sequence stars that are relatively far from the Sun. d) relatively cool main-sequence stars that are relatively close to the Sun. e) giant stars and relatively hot main sequence stars. ...
The Significance of Mega Stars
... expansion of consciousness to include the whole of the Milky Way galaxy, not just the Orion Arm. The famous Bayer catalog of stars compiled in 1603 by Johann Bayer assigns Greek letters to the brightest stars visible in each constellation, usually in descending order of apparent brightness (but Bay ...
... expansion of consciousness to include the whole of the Milky Way galaxy, not just the Orion Arm. The famous Bayer catalog of stars compiled in 1603 by Johann Bayer assigns Greek letters to the brightest stars visible in each constellation, usually in descending order of apparent brightness (but Bay ...
Perseus (constellation)
Perseus, named after the Greek mythological hero Perseus, is a constellation in the northern sky. It was one of 48 listed by the 2nd-century astronomer Ptolemy and among the 88 modern constellations defined by the International Astronomical Union (IAU). It is located in the northern celestial hemisphere near several other constellations named after legends surrounding Perseus, including Andromeda to the west and Cassiopeia to the north. Perseus is also bordered by Aries and Taurus to the south, Auriga to the east, Camelopardalis to the north, and Triangulum to the west.The galactic plane of the Milky Way passes through Perseus but is mostly obscured by molecular clouds. The constellation's brightest star is the yellow-white supergiant Alpha Persei (also called Mirfak), which shines at magnitude 1.79. It and many of the surrounding stars are members of an open cluster known as the Alpha Persei Cluster. The best-known star, however, is Algol (Beta Persei), linked with ominous legends because of its variability, which is noticeable to the naked eye. Rather than being an intrinsically variable star, it is an eclipsing binary. Other notable star systems in Perseus include X Persei, a binary system containing a neutron star, and GK Persei, a nova that peaked at magnitude 0.2 in 1901. The Double Cluster, comprising two open clusters quite near each other in the sky, was known to the ancient Chinese. The constellation gives its name to the Perseus Cluster (Abell 426), a massive galaxy cluster located 250 million light-years from Earth. It hosts the radiant of the annual Perseids meteor shower—one of the most prominent meteor showers in the sky.