observingopenclusters-2-2-1
... to the Sun Slide your scope or binoculars parallel to the dog’s back and then move west of that line. You will pick up a large rich field of stars – Open Cluster M41 Procyon (Canis Minor) Locate next large and (also close) Procyon This points the way to 2 very different open clusters in Monocerous, ...
... to the Sun Slide your scope or binoculars parallel to the dog’s back and then move west of that line. You will pick up a large rich field of stars – Open Cluster M41 Procyon (Canis Minor) Locate next large and (also close) Procyon This points the way to 2 very different open clusters in Monocerous, ...
Celestial Bodies
... This is a scene from the Bayeux tapestry. A supernova has been drawn in the upper right corner. The Chinese also recorded seeing it around the same time. ...
... This is a scene from the Bayeux tapestry. A supernova has been drawn in the upper right corner. The Chinese also recorded seeing it around the same time. ...
Stars
... range greatly in size from large supergiants to very small dwarfs. Our star, the Sun, is considered to be average in comparison to the size of other stars. ...
... range greatly in size from large supergiants to very small dwarfs. Our star, the Sun, is considered to be average in comparison to the size of other stars. ...
Chapter 20 The Universe
... Distance that light travels in 1 yr. ~10 billion km Sirius (Dog star) only 9 light years away Proxima Centauri (closest) 4.25 light yrs Other than sun Galaxy- large grouping of stars -our solar system is part of Milky Way Galaxy - what we see as the Milky Way is only the edge (spiral galaxy) ...
... Distance that light travels in 1 yr. ~10 billion km Sirius (Dog star) only 9 light years away Proxima Centauri (closest) 4.25 light yrs Other than sun Galaxy- large grouping of stars -our solar system is part of Milky Way Galaxy - what we see as the Milky Way is only the edge (spiral galaxy) ...
Lecture 6: Properties of Stars The Constellations The Constellations
... o Greek astronomer Hipparchos made first known catalogue of stars in ~130-160 BC, which was added to by Ptolomy in ~150 AD. o Hipparcus grouped stars into six magnitude groups, with 1st magnitude being brightest and 6th the faintest. o In 19th century, it was shown that stars of a given magnitude ...
... o Greek astronomer Hipparchos made first known catalogue of stars in ~130-160 BC, which was added to by Ptolomy in ~150 AD. o Hipparcus grouped stars into six magnitude groups, with 1st magnitude being brightest and 6th the faintest. o In 19th century, it was shown that stars of a given magnitude ...
coSmoS in youR PockET
... The Universe is everything that exists: all planets, stars, galaxies and all of the other objects in space. A galaxy is a large collection of stars, along with gas, dust and other stuff. The galaxy that we live in is called the Milky Way. A Star is a massive ball of luminous hot gas, held together ...
... The Universe is everything that exists: all planets, stars, galaxies and all of the other objects in space. A galaxy is a large collection of stars, along with gas, dust and other stuff. The galaxy that we live in is called the Milky Way. A Star is a massive ball of luminous hot gas, held together ...
30.2 PowerPoint Stellar Evolution
... the core of the star The energy from fusion balances the force of gravity and makes it a very stable stage ...
... the core of the star The energy from fusion balances the force of gravity and makes it a very stable stage ...
Round 1
... A ’shooting star’ is actually this. (meteor) This is the event that killed the remaining dinosaurs and 2/3 of all life. (K-T extinction) A nova can result when you have these two objects near each other. (White dwarf and other star like red giant) $1000 Variable stars are useful to astronomers becau ...
... A ’shooting star’ is actually this. (meteor) This is the event that killed the remaining dinosaurs and 2/3 of all life. (K-T extinction) A nova can result when you have these two objects near each other. (White dwarf and other star like red giant) $1000 Variable stars are useful to astronomers becau ...
Solar Nebula Theory
... As Jupiter orbits the Sun, the Sun “wobbles” around the COM A star’s spectrum will shift its appearance as the host star “wobbles” ...
... As Jupiter orbits the Sun, the Sun “wobbles” around the COM A star’s spectrum will shift its appearance as the host star “wobbles” ...
HOMEWORK #1
... Just as brightness is related to apparent magnitude, luminosity is related to a term called “absolute magnitude.” Astronomers refer to a star’s “absolute magnitude (M)” as the apparent magnitude it would have at an arbitrary standardized distance of 10 parsecs (i.e., 32.6 light-years). #2. Combine ...
... Just as brightness is related to apparent magnitude, luminosity is related to a term called “absolute magnitude.” Astronomers refer to a star’s “absolute magnitude (M)” as the apparent magnitude it would have at an arbitrary standardized distance of 10 parsecs (i.e., 32.6 light-years). #2. Combine ...
3.6 spectral classes
... The method of parallax is used in measuring the distances to nearby stars. The position of a star is carefully determined relative to other stars. Six months later, when Earth’s revolution has carried telescopes halfway around the Sun, the star’s position is measured again. Nearby stars appear to sh ...
... The method of parallax is used in measuring the distances to nearby stars. The position of a star is carefully determined relative to other stars. Six months later, when Earth’s revolution has carried telescopes halfway around the Sun, the star’s position is measured again. Nearby stars appear to sh ...
Which has a hotter temperature, a red star or a blue star? How do
... radiated by a small piece of a black body. Both are energy, but they are not the same thing. ...
... radiated by a small piece of a black body. Both are energy, but they are not the same thing. ...
Sample exam 2
... e. not change luminosity class or spectral type Essay questions — choose three of the following questions; circle the numbers of the ones chosen, so I know which ones to grade. Please answer each question in sentence/paragraph format or a drawing, depending on what is asked. 11. The Sun started off ...
... e. not change luminosity class or spectral type Essay questions — choose three of the following questions; circle the numbers of the ones chosen, so I know which ones to grade. Please answer each question in sentence/paragraph format or a drawing, depending on what is asked. 11. The Sun started off ...
CONSTELLATION URSA MAJOR, THE GREAT
... Ursa Major (also known as the Great Bear) is a constellation in the northern celestial hemisphere. It was one of the 48 constellations listed by Ptolemy (second century AD), and remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its ...
... Ursa Major (also known as the Great Bear) is a constellation in the northern celestial hemisphere. It was one of the 48 constellations listed by Ptolemy (second century AD), and remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its ...
STARS Chapter 8 Section 1
... • Parallax is the object’s apparent shift in motion when viewed from different locations. It is an optical effect. • Astronomers can measure parallax and use it to calculate exact distances to stars. • Does the man on the right(V2) see the moon as closer or farther away than the man on the left? • W ...
... • Parallax is the object’s apparent shift in motion when viewed from different locations. It is an optical effect. • Astronomers can measure parallax and use it to calculate exact distances to stars. • Does the man on the right(V2) see the moon as closer or farther away than the man on the left? • W ...
Stars
... Stars have different sizes. White dwarf stars are about the size of Earth. Supergiant stars can be wider than 300 million miles. That is more than one thousand times the distance from Earth to the Moon. Stars can be different colors such as blue, yellow, orange, red, white, and black. ...
... Stars have different sizes. White dwarf stars are about the size of Earth. Supergiant stars can be wider than 300 million miles. That is more than one thousand times the distance from Earth to the Moon. Stars can be different colors such as blue, yellow, orange, red, white, and black. ...
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.