Star Information ppt.
... stars like our sun that are fusing hydrogen into helium in their cores. Luminous mainsequence stars are hot (blue) Less luminous ones are cooler (yellow or red) ...
... stars like our sun that are fusing hydrogen into helium in their cores. Luminous mainsequence stars are hot (blue) Less luminous ones are cooler (yellow or red) ...
Surveying the Stars
... stars are fusing hydrogen into helium in their cores like the Sun Luminous mainsequence stars are hot (blue) Less luminous ones are cooler (yellow or red) ...
... stars are fusing hydrogen into helium in their cores like the Sun Luminous mainsequence stars are hot (blue) Less luminous ones are cooler (yellow or red) ...
EXAM II REVIEW
... How do telescopes help us learn about the universe? • Telescopes collect more light than our eyes light-collecting area • Telescopes can see more detail than our eyes angular resolution • Telescopes/instruments can detect light that is invisible to our eyes (e.g., infrared, ultraviolet) ...
... How do telescopes help us learn about the universe? • Telescopes collect more light than our eyes light-collecting area • Telescopes can see more detail than our eyes angular resolution • Telescopes/instruments can detect light that is invisible to our eyes (e.g., infrared, ultraviolet) ...
Two new transiting extra-solar planets discovered with SuperWASP
... The two faint stars around which the new exoplanets were found are relatively similar to our Sun. Star WASP-1 is slightly hotter and larger and its located 1000 light-years away in Andromeda. Star WASP-2 is slightly colder and smaller and is located 500 light-years away in the Dolphin. Although invi ...
... The two faint stars around which the new exoplanets were found are relatively similar to our Sun. Star WASP-1 is slightly hotter and larger and its located 1000 light-years away in Andromeda. Star WASP-2 is slightly colder and smaller and is located 500 light-years away in the Dolphin. Although invi ...
Chapter 13 (Properties of Stars)
... diagram, yet the majority of nearby stars are found to the lower right of our star. Relate this to the limitations of human vision. 3. Sirius and its companion are almost the same temperature, yet Sirius is about 10,000x brighter than its companion. Explain why they differ so much in luminosity. 4. ...
... diagram, yet the majority of nearby stars are found to the lower right of our star. Relate this to the limitations of human vision. 3. Sirius and its companion are almost the same temperature, yet Sirius is about 10,000x brighter than its companion. Explain why they differ so much in luminosity. 4. ...
Stars 3
... The core collapses suddenly to form a neutron star, or possibly a black hole, releasing vast energy in the form of neutrinos. ...
... The core collapses suddenly to form a neutron star, or possibly a black hole, releasing vast energy in the form of neutrinos. ...
1B11 Foundations of Astronomy Star names and magnitudes
... 1B11 Glossary of terms - V • Vernal Equinox – The zero point for RA which is defined as the position of the Sun in the sky at the Vernal Equinox (~21 March), the point at which the Sun crosses the equator from South to North. It is also known as the “First Point of Aries” (although it is now in Pis ...
... 1B11 Glossary of terms - V • Vernal Equinox – The zero point for RA which is defined as the position of the Sun in the sky at the Vernal Equinox (~21 March), the point at which the Sun crosses the equator from South to North. It is also known as the “First Point of Aries” (although it is now in Pis ...
Nuclear fusion in stars
... This difference would double the Sun’s L for 3 x 107 years, which is enough to observe many!such stars in clusters For a supergiant (say, 100 Msun), the period of over-brightening would only be ~150 years - too brief to be observed at any given time ...
... This difference would double the Sun’s L for 3 x 107 years, which is enough to observe many!such stars in clusters For a supergiant (say, 100 Msun), the period of over-brightening would only be ~150 years - too brief to be observed at any given time ...
Distance Ladder
... •Typically 300 km/s or so How to to determine distances: is moving away from us at •Measure v using Doppler shift 2100 km/s? A) 1 Mly D) 484 Mly •Deduce the distance from: B) 10 Mly E) 4,840 Mly v = H0d C) 100 Mly F) 48,400 Mly ...
... •Typically 300 km/s or so How to to determine distances: is moving away from us at •Measure v using Doppler shift 2100 km/s? A) 1 Mly D) 484 Mly •Deduce the distance from: B) 10 Mly E) 4,840 Mly v = H0d C) 100 Mly F) 48,400 Mly ...
Measuring the Properties of Stars - Sierra College Astronomy Home
... are in fact multiple star systems. Optical doubles are two stars that have small angular separation as seen from Earth but are not gravitationally linked. Binary star system is a system of two stars that are gravitationally linked so that they orbit one another. © Sierra College Astronomy Depart ...
... are in fact multiple star systems. Optical doubles are two stars that have small angular separation as seen from Earth but are not gravitationally linked. Binary star system is a system of two stars that are gravitationally linked so that they orbit one another. © Sierra College Astronomy Depart ...
Slide 1
... accretion disk indicating BH or WH in center--a quadrillion solar masses!) The Pisces-Cetus Complex: may include 400 rich (and lots of poor) clusters. Brent Tully. Is the Universe homogeneous? God's Bubble Bath: Galaxy superclusters seem to from in bubble structures and filaments with Voids 100-500 ...
... accretion disk indicating BH or WH in center--a quadrillion solar masses!) The Pisces-Cetus Complex: may include 400 rich (and lots of poor) clusters. Brent Tully. Is the Universe homogeneous? God's Bubble Bath: Galaxy superclusters seem to from in bubble structures and filaments with Voids 100-500 ...
The Milky Way: Home to Star Clusters
... was the original extent of the galaxy, and that this was created first, from the primordial gas that eventually collapsed in on itself, also demonstrated by the old stars contained within the globular clusters. This matter condensed to create the central bulge, which ultimately began to rotate, crea ...
... was the original extent of the galaxy, and that this was created first, from the primordial gas that eventually collapsed in on itself, also demonstrated by the old stars contained within the globular clusters. This matter condensed to create the central bulge, which ultimately began to rotate, crea ...
White Dwarfs and Neutron Stars
... • Electron degeneracy cannot support a white dwarf heavier than 1.4 solar masses, the “Chandrasekhar limit”. ...
... • Electron degeneracy cannot support a white dwarf heavier than 1.4 solar masses, the “Chandrasekhar limit”. ...
EarthComm_c1s9
... interesting, but they also show scientists what the fate of our solar system will be billions of years from now. What would happen if there were a supernova explosion in our stellar neighborhood some time in the future? Depending on how close it was, you could be bombarded with strong radiation and ...
... interesting, but they also show scientists what the fate of our solar system will be billions of years from now. What would happen if there were a supernova explosion in our stellar neighborhood some time in the future? Depending on how close it was, you could be bombarded with strong radiation and ...
Linking Asteroids and Meteorites through Reflectance
... • Not hot enough to emit significant amounts of light • Since the time required for a white dwarf to reach this state is calculated to be longer than the current age of the universe of 13.7 billion years, no black dwarfs are expected to exist in the universe yet ...
... • Not hot enough to emit significant amounts of light • Since the time required for a white dwarf to reach this state is calculated to be longer than the current age of the universe of 13.7 billion years, no black dwarfs are expected to exist in the universe yet ...
Evolution of High
... star…However, none has been found so far. – The neutron star is there, but it is not pulling in materials. Without materials around it, no X-ray emission can be detected. – Maybe a black hole (Chapter 13), instead of a neutron star, was formed? ...
... star…However, none has been found so far. – The neutron star is there, but it is not pulling in materials. Without materials around it, no X-ray emission can be detected. – Maybe a black hole (Chapter 13), instead of a neutron star, was formed? ...
Number of planets - Associazione Astrofili "Crab Nebula"
... - however slight caused by a planet (both bodies orbit around the center of mass). For comparison, Jupiter – when seen from a distance of 10 light years – makes our Sun oscillate of about 1 millionth of grade, with a period of about 12 years. ...
... - however slight caused by a planet (both bodies orbit around the center of mass). For comparison, Jupiter – when seen from a distance of 10 light years – makes our Sun oscillate of about 1 millionth of grade, with a period of about 12 years. ...
Cygnus (constellation)
Cygnus /ˈsɪɡnəs/ is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. The swan is one of the most recognizable constellations of the northern summer and autumn, it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.Cygnus contains Deneb, one of the brightest stars in the night sky and one corner of the Summer Triangle, as well as some notable X-ray sources and the giant stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a black hole. Many star systems in Cygnus have known planets as a result of the Kepler Mission observing one patch of the sky, the patch is the area around Cygnus. In addition, most of the eastern part of Cygnus is dominated by the Hercules–Corona Borealis Great Wall, a giant galaxy filament that is the largest known structure in the observable universe; covering most of the northern sky.