Stars
... • Apparent Magnitude: stars closer to Earth appear brighter than those that are farther away • Absolute Magnitude: big stars are brighter than small stars. This is the ACTUAL brightness of the star – If all the stars were lined up equi-distant from Earth, we would be able to compare their actual bri ...
... • Apparent Magnitude: stars closer to Earth appear brighter than those that are farther away • Absolute Magnitude: big stars are brighter than small stars. This is the ACTUAL brightness of the star – If all the stars were lined up equi-distant from Earth, we would be able to compare their actual bri ...
Solutions
... 1. In class, I told you that if the Sun were a grain of sand and Proxima Centauri (the closest star to the Sun) were another grain of sand, they would be something 20 miles apart. Create a similar analogy for the Milky Way and Andromeda galaxies, only using frisbees or dinner plates to represent the ...
... 1. In class, I told you that if the Sun were a grain of sand and Proxima Centauri (the closest star to the Sun) were another grain of sand, they would be something 20 miles apart. Create a similar analogy for the Milky Way and Andromeda galaxies, only using frisbees or dinner plates to represent the ...
Groups of Stars
... appearance and contains no more than a few thousand stars that are well spread out. Open clusters often contain bright supergiants and gas ...
... appearance and contains no more than a few thousand stars that are well spread out. Open clusters often contain bright supergiants and gas ...
observingnebulaeclusters-1
... A spectacular cloud of gas surrounds several very hot stars in the star cluster deep within the nebula. The nebula's constituent gases include hydrogen, helium, oxygen, carbon, neon, nitrogen, sulphur, argon, and chlorine; the density of these gases is above the critical limit required for stars to ...
... A spectacular cloud of gas surrounds several very hot stars in the star cluster deep within the nebula. The nebula's constituent gases include hydrogen, helium, oxygen, carbon, neon, nitrogen, sulphur, argon, and chlorine; the density of these gases is above the critical limit required for stars to ...
Stars and Galaxies Misconceptions
... Students may have very confused scales for star sizes and distances. Stars are not small and they do not fall from the sky; they are huge and very far away. ...
... Students may have very confused scales for star sizes and distances. Stars are not small and they do not fall from the sky; they are huge and very far away. ...
Galaxy Notes Presentation
... number of stars in the galaxy, can estimate as roughly 100 billion ...
... number of stars in the galaxy, can estimate as roughly 100 billion ...
The Life of Stars
... blood, and the carbon in our apple pies were all made in the interior of collapsing stars. We are made of ...
... blood, and the carbon in our apple pies were all made in the interior of collapsing stars. We are made of ...
Part 1—Stages of Human Life
... 1. Make an educated guess of the life cycle of the images of the stars. Guess the stages of life for this high mass star. 2. Shuffle the images and place them in order from youngest to oldest, but do NOT glue them down yet. 3. List the logic and the reasons for why you placed the images in the order ...
... 1. Make an educated guess of the life cycle of the images of the stars. Guess the stages of life for this high mass star. 2. Shuffle the images and place them in order from youngest to oldest, but do NOT glue them down yet. 3. List the logic and the reasons for why you placed the images in the order ...
PowerPoint
... Q: Does anything survive the Type II SN Explosion? The inward pressure is enormous, due to the high mass of the star. There is nothing stopping the star from collapsing further; it does so very rapidly, in a giant implosion. As it continues to become more and more dense, the protons and electrons re ...
... Q: Does anything survive the Type II SN Explosion? The inward pressure is enormous, due to the high mass of the star. There is nothing stopping the star from collapsing further; it does so very rapidly, in a giant implosion. As it continues to become more and more dense, the protons and electrons re ...
The Brightness of Stars
... Quantifying the brightness of stars started with Hipparchus (2nd C. BC) and his magnitude scale He designated the brightest star he could see as a “1” magnitude and the dimmest a “6” magnitude Astronomers still labor under a more quantified version of this system One tragic consequence is that ...
... Quantifying the brightness of stars started with Hipparchus (2nd C. BC) and his magnitude scale He designated the brightest star he could see as a “1” magnitude and the dimmest a “6” magnitude Astronomers still labor under a more quantified version of this system One tragic consequence is that ...
Answers for the HST Scavenger Hunt
... What is the difference between a galaxy and a nebula? A nebula is a cloud of gas and dust located between stars and/or surrounding stars. A galaxy is a collection of stars, gas, and dust bound together by gravity. How are galaxies classified? Galaxies are classified or grouped by their shape. ...
... What is the difference between a galaxy and a nebula? A nebula is a cloud of gas and dust located between stars and/or surrounding stars. A galaxy is a collection of stars, gas, and dust bound together by gravity. How are galaxies classified? Galaxies are classified or grouped by their shape. ...
HR DIAGRAM ACTIVITY
... 9. Which star is the brightest white dwarf on the H-R diagram? 10. Which star is the hottest supergiant on the H-R diagram? 11. What color are the coolest stars? 12. If you know a star’s color, you can determine its _________________ 13. (circle one) HOT or COLD stars have a shorter life span. 14. ...
... 9. Which star is the brightest white dwarf on the H-R diagram? 10. Which star is the hottest supergiant on the H-R diagram? 11. What color are the coolest stars? 12. If you know a star’s color, you can determine its _________________ 13. (circle one) HOT or COLD stars have a shorter life span. 14. ...
How Stars Form Powerpoint
... If the mass of the “failed star” is about 12 Jupiter masses or more, it is luminous when first formed, and is called a brown dwarf. ...
... If the mass of the “failed star” is about 12 Jupiter masses or more, it is luminous when first formed, and is called a brown dwarf. ...
Night Sky Checklist October–November
... and probably the most distant object visible in the murky skies of Acadiana. The Andromeda Galaxy is a spiral of well over 500 billion stars so far away that we can barely see it, at a distance of nearly 3 million light years. It looks like a faint fuzzy about halfway between the Great Square and Ca ...
... and probably the most distant object visible in the murky skies of Acadiana. The Andromeda Galaxy is a spiral of well over 500 billion stars so far away that we can barely see it, at a distance of nearly 3 million light years. It looks like a faint fuzzy about halfway between the Great Square and Ca ...
Scientists classify stars by
... If lights A and B were next to each other they would look the same because the two lights are exactly the same. Their absolute magnitude is the same. Distance makes them look different. The same is true for stars. Two stars could be the same brightness but their distance from us makes their brightne ...
... If lights A and B were next to each other they would look the same because the two lights are exactly the same. Their absolute magnitude is the same. Distance makes them look different. The same is true for stars. Two stars could be the same brightness but their distance from us makes their brightne ...
Night Sky Checklist July–August–September Unaided Eye Astronomy
... just outside the Summer Triangle between Cygnus and Aquila. Stars (The stars on the checklist are easily visible to the unaided eye except in the most light polluted parts of cities.) Antares is a red supergiant star estimated to be some 800 times bigger than the sun. It’s bigger than the orbits of ...
... just outside the Summer Triangle between Cygnus and Aquila. Stars (The stars on the checklist are easily visible to the unaided eye except in the most light polluted parts of cities.) Antares is a red supergiant star estimated to be some 800 times bigger than the sun. It’s bigger than the orbits of ...
ES High mass star life cycle plus black holes
... Now we are going to have a little practice quiz. On Thursday we watched a video about the life cycle of a low mass star. What I would you to attempt is to draw the life cycle of a low mass star. All stars start as a nebula and this is also the ending point for many stars so this a true cycle. Protos ...
... Now we are going to have a little practice quiz. On Thursday we watched a video about the life cycle of a low mass star. What I would you to attempt is to draw the life cycle of a low mass star. All stars start as a nebula and this is also the ending point for many stars so this a true cycle. Protos ...
PowerPoint - Chandra X
... (red) image of the active galaxy, NGC 1068, shows gas blowing away in a high-speed wind from the vicinity of a central supermassive black hole. Regions of intense star formation in the inner spiral arms of the galaxy are highlighted by both optical and X-ray emission. ...
... (red) image of the active galaxy, NGC 1068, shows gas blowing away in a high-speed wind from the vicinity of a central supermassive black hole. Regions of intense star formation in the inner spiral arms of the galaxy are highlighted by both optical and X-ray emission. ...
PHYSICS 015
... encountered, no exotic or extraordinary circumstances. No one tells the material that a special new behaviour has to rise up to save the day. ….but it’s already too late; gravity ...
... encountered, no exotic or extraordinary circumstances. No one tells the material that a special new behaviour has to rise up to save the day. ….but it’s already too late; gravity ...
11.1 Stars - St John Brebeuf
... in an obscure galaxy in the constellation Hercules. Never before have astronomers observed two of these powerful stellar explosions occurring in the same galaxy so close together in time. ...
... in an obscure galaxy in the constellation Hercules. Never before have astronomers observed two of these powerful stellar explosions occurring in the same galaxy so close together in time. ...
May 2016 night sky chart
... For Darwin and similar locations the chart will still apply, but some stars will be lost off the southern edge while extra stars will be visible to the north. Stars down to a brightness or magnitude limit of 4.5 are shown on the star chart. To use this star chart, rotate the chart so that the direct ...
... For Darwin and similar locations the chart will still apply, but some stars will be lost off the southern edge while extra stars will be visible to the north. Stars down to a brightness or magnitude limit of 4.5 are shown on the star chart. To use this star chart, rotate the chart so that the direct ...
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 ...
Serpens
Serpens (""the Serpent"", Greek Ὄφις) is a constellation of the northern hemisphere. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations defined by the International Astronomical Union. It is unique among the modern constellations in being split into two non-contiguous parts, Serpens Caput (Serpent's Head) to the west and Serpens Cauda (Serpent's Tail) to the east. Between these two halves lies the constellation of Ophiuchus, the ""Serpent-Bearer"". In figurative representations, the body of the serpent is represented as passing behind Ophiuchus between Mu Serpentis in Serpens Caput and Nu Serpentis in Serpens Cauda.The brightest star in Serpens is the red giant star Alpha Serpentis, or Unukalhai, in Serpens Caput, with an apparent magnitude of 2.63. Also located in Serpens Caput are the naked-eye globular cluster Messier 5 and the naked-eye variables R Serpentis and Tau4 Serpentis. Notable extragalactic objects include Seyfert's Sextet, one of the densest galaxy clusters known; Arp 220, the prototypical ultraluminous infrared galaxy; and Hoag's Object, the most famous of the very rare class of galaxies known as ring galaxies.Part of the Milky Way's galactic plane passes through Serpens Cauda, which is therefore rich in galactic deep-sky objects, such as the Eagle Nebula (IC 4703) and its associated star cluster Messier 16. The nebula measures 70 light-years by 50 light-years and contains the Pillars of Creation, three dust clouds that became famous for the image taken by the Hubble Space Telescope. Other striking objects include the Red Square Nebula, one of the few objects in astronomy to take on a square shape; and Westerhout 40, a massive nearby star-forming region consisting of a molecular cloud and an H II region.