Alpha Centauri
... FAMOUS FOR: It’s the 3rd brightest star in the sky. And a member of the triple star system. ...
... FAMOUS FOR: It’s the 3rd brightest star in the sky. And a member of the triple star system. ...
Our Local Group of Galaxies
... generally elliptical in shape, with the surface brightness largest in the centre decreasing uniformly outwards. With a couple of exceptions, they are found near the large galaxies of the Local Group. • For example, the Milky Way has at least 20 dE/dSph companions while M31 most likely has a similar ...
... generally elliptical in shape, with the surface brightness largest in the centre decreasing uniformly outwards. With a couple of exceptions, they are found near the large galaxies of the Local Group. • For example, the Milky Way has at least 20 dE/dSph companions while M31 most likely has a similar ...
the article as PDF - Project VS
... VV Cephei eclipsing binary systems offer the most detailed method of studying mass loss from cool supergiant stars. The long-period of VV Cephei gives it a unique place among eclipsing binaries, but 20.4 years between eclipses make it really hard for scientists to study the system. Such a long inter ...
... VV Cephei eclipsing binary systems offer the most detailed method of studying mass loss from cool supergiant stars. The long-period of VV Cephei gives it a unique place among eclipsing binaries, but 20.4 years between eclipses make it really hard for scientists to study the system. Such a long inter ...
Cataclysmic Cosmic Events and How to Observe Them www.springer.com/series/5338
... In the Victorian era – or for non-British readers, the mid-to-late nineteenth century – amateur astronomy tended to center on Solar System objects. The Moon and planets, as well as bright comets, were the key objects of interest. The brighter variable stars were monitored, but photography was in it ...
... In the Victorian era – or for non-British readers, the mid-to-late nineteenth century – amateur astronomy tended to center on Solar System objects. The Moon and planets, as well as bright comets, were the key objects of interest. The brighter variable stars were monitored, but photography was in it ...
Review 3 (11-18-10)
... • Neutron Stars: even denser, about mass of Sun in size of Orlando. Neutrons stop further collapse. M between 1.4 and 3 solar masses. Some neutron stars can be detected as pulsars • Black Holes: M more than 3 solar masses. Nothing stops the collapse and produces an object so compact that escape velo ...
... • Neutron Stars: even denser, about mass of Sun in size of Orlando. Neutrons stop further collapse. M between 1.4 and 3 solar masses. Some neutron stars can be detected as pulsars • Black Holes: M more than 3 solar masses. Nothing stops the collapse and produces an object so compact that escape velo ...
Star Formation in Our Galaxy - Wiley-VCH
... into the neighboring Auriga Constellation. Here, as in Orion, molecular clouds are actively producing a multitude of new stars. ...
... into the neighboring Auriga Constellation. Here, as in Orion, molecular clouds are actively producing a multitude of new stars. ...
Teacher`s Guide - Cornell Science Inquiry Partnerships
... Sections #1, #2, #4, #5 and #7 leads to an activity that can be squeezed into a single class period. Following all the steps below, meanwhile, produces a lesson that can be stretched over many days or even weeks. It’s probably a good idea to include at least one activity that allows students to actu ...
... Sections #1, #2, #4, #5 and #7 leads to an activity that can be squeezed into a single class period. Following all the steps below, meanwhile, produces a lesson that can be stretched over many days or even weeks. It’s probably a good idea to include at least one activity that allows students to actu ...
Document
... • In a visual binary, you can see two stars. • However, for most binary stars, their separation is very small compared to their distance, and from Earth they appear to be a single point. • How do you observe these types of binaries? Use spectroscopy! ...
... • In a visual binary, you can see two stars. • However, for most binary stars, their separation is very small compared to their distance, and from Earth they appear to be a single point. • How do you observe these types of binaries? Use spectroscopy! ...
Stars
... • Luminosity is measured in units of energy emitted per second, or watts. The Sun’s luminosity is about 3.85 × 1026 W. The values for other stars vary widely, from about 0.0001 to more than 1 million times the Sun’s luminosity. No other stellar property varies as much. ...
... • Luminosity is measured in units of energy emitted per second, or watts. The Sun’s luminosity is about 3.85 × 1026 W. The values for other stars vary widely, from about 0.0001 to more than 1 million times the Sun’s luminosity. No other stellar property varies as much. ...
Cassiopeia Kelly Pearce
... Epsilon Cassiopeiae has a traditional name Segin and is blue-white in colour (Stars.Astro.Illinois.edu, Segin, 2010). It forms the outer most left point of the W and is the fifth brightest of all 5 stars. It is noticeably dimmer than the remaining stars but definitively forms the one of the outermo ...
... Epsilon Cassiopeiae has a traditional name Segin and is blue-white in colour (Stars.Astro.Illinois.edu, Segin, 2010). It forms the outer most left point of the W and is the fifth brightest of all 5 stars. It is noticeably dimmer than the remaining stars but definitively forms the one of the outermo ...
THREE INTRIGUER NEBULAE IN CONSTELLATION CARINA
... Astronomical Twilight. The first step was to identify constellation Antlia whose stars, although faint, were clearly visible to the naked eye. Once the constellation was identified I focused on the region where the cluster lies. To make this possible it is necessary to fix our view on the eastern pa ...
... Astronomical Twilight. The first step was to identify constellation Antlia whose stars, although faint, were clearly visible to the naked eye. Once the constellation was identified I focused on the region where the cluster lies. To make this possible it is necessary to fix our view on the eastern pa ...
Section 2
... Color and Temperature If you look at the night sky, you can see slight differences in the colors of the stars. For example, Betelgeuse (BAY tul jooz), the bright star in Orion’s shoulder, looks reddish. Rigel, the star in Orion’s heel, is blue-white. Like hot objects on Earth, a star’s color reveals ...
... Color and Temperature If you look at the night sky, you can see slight differences in the colors of the stars. For example, Betelgeuse (BAY tul jooz), the bright star in Orion’s shoulder, looks reddish. Rigel, the star in Orion’s heel, is blue-white. Like hot objects on Earth, a star’s color reveals ...
Astronomy 114 - Department of Astronomy
... Magnitude scale Greek astronomer Hipparchus divided stars into six classes or magnitudes (2nd century BC) 1st magnitude is brightest, 6th magnitude is faintest Sensitivity of human eye is logarithmic Magnitude difference of 1 corresponds log(1000) 3 to −2.5 log(F1 /F2 ) ...
... Magnitude scale Greek astronomer Hipparchus divided stars into six classes or magnitudes (2nd century BC) 1st magnitude is brightest, 6th magnitude is faintest Sensitivity of human eye is logarithmic Magnitude difference of 1 corresponds log(1000) 3 to −2.5 log(F1 /F2 ) ...
Next Generation Sunshine State Standards Chapter 24
... sizes, temperatures, and distances, so their apparent brightnesses vary widely. Apparent Magnitude Stars have been classified according to their apparent brightness since at least the second century BC, when Hipparchus placed about 850 of them into six categories based on his ability to see differen ...
... sizes, temperatures, and distances, so their apparent brightnesses vary widely. Apparent Magnitude Stars have been classified according to their apparent brightness since at least the second century BC, when Hipparchus placed about 850 of them into six categories based on his ability to see differen ...
Variable Stars – II. Pulsating stars
... Leavitt was able to derive this relationship because the size of the SMC is small compared to its distance from us so, although not strictly true, it is not unreasonable to assume that all the stars in the SMC are at the same distance. Had she lived longer (she died of cancer at age 53) she might we ...
... Leavitt was able to derive this relationship because the size of the SMC is small compared to its distance from us so, although not strictly true, it is not unreasonable to assume that all the stars in the SMC are at the same distance. Had she lived longer (she died of cancer at age 53) she might we ...
Stellar Evolution
... one of these eddies as shown in Figure II-5. 3. As the cloudlet contracts, it spins faster due to the conservation of angular momentum L = M R2 ω, where ω is the angular velocity of the protostellar cloudlet =⇒ since M is constant, as R gets smaller, ω gets larger. This increased spin causes the equ ...
... one of these eddies as shown in Figure II-5. 3. As the cloudlet contracts, it spins faster due to the conservation of angular momentum L = M R2 ω, where ω is the angular velocity of the protostellar cloudlet =⇒ since M is constant, as R gets smaller, ω gets larger. This increased spin causes the equ ...
Stellar Properties
... “but they are not the same things for different people. For some, who are travelers, the stars are guides. For others they are no more than little lights in the sky. For others, who are scholars, they are problems. For my businessman they were wealth. But all these stars are silent. You – you alone ...
... “but they are not the same things for different people. For some, who are travelers, the stars are guides. For others they are no more than little lights in the sky. For others, who are scholars, they are problems. For my businessman they were wealth. But all these stars are silent. You – you alone ...
PowerPoint Presentation - 16. Properties of Stars
... • How much light is it emitting: luminosity (L) [watts] • How far away is it: distance (d) [meters] ...
... • How much light is it emitting: luminosity (L) [watts] • How far away is it: distance (d) [meters] ...
Have You Seen Canopus Tonight?
... other bright stars on the sky, about 310 light years by current estimates. However, other very bright looking stars as Rigel (900 light years?) or Deneb (1,000 light years?) are more distant. Nevertheless, this still makes Canopus a splendid and imposing star as we shall see. We know, too, that Cano ...
... other bright stars on the sky, about 310 light years by current estimates. However, other very bright looking stars as Rigel (900 light years?) or Deneb (1,000 light years?) are more distant. Nevertheless, this still makes Canopus a splendid and imposing star as we shall see. We know, too, that Cano ...
An introduction to photometry and photometric measurements Henry
... "brightness" of the Sun appears to be about the same over most of the Sun's surface, which looks like a nearly uniform disk even though it is a sphere. This means, for example, that a photograph of the Sun would expose the film equally across the Sun's disk. It also turns out that the exposure would ...
... "brightness" of the Sun appears to be about the same over most of the Sun's surface, which looks like a nearly uniform disk even though it is a sphere. This means, for example, that a photograph of the Sun would expose the film equally across the Sun's disk. It also turns out that the exposure would ...
Glencoe Earth Science
... 1. Describe circumpolar constellations. 2. Explain why some constellations are visible only during certain seasons. 3. Infer how two stars could have the same apparent magnitude but different absolute magnitudes. 4. Explain how a star is similar to the Sun if it has the same absorption lines in its ...
... 1. Describe circumpolar constellations. 2. Explain why some constellations are visible only during certain seasons. 3. Infer how two stars could have the same apparent magnitude but different absolute magnitudes. 4. Explain how a star is similar to the Sun if it has the same absorption lines in its ...
Science Grade 08 Unit 11 Exemplar Lesson 02: Classifying Stars
... Questions (previously distributed and affixed). 6. Project the Teacher Resource: PowerPoint: Galaxies and Stars, and discuss slides 7–9 with students. Instruct students to watch for underlined words or phrases as they continue to answer questions. Monitor students’ answers for accuracy as they compl ...
... Questions (previously distributed and affixed). 6. Project the Teacher Resource: PowerPoint: Galaxies and Stars, and discuss slides 7–9 with students. Instruct students to watch for underlined words or phrases as they continue to answer questions. Monitor students’ answers for accuracy as they compl ...
Curiosities of the Sky
... most excellent photographs includes two of them, both in the star-cluster M8. The larger, which is roughly rectangular in outline, contains one little star, and its smaller neighbor is lune-shaped -surely a most singular form for such an object. Both are associated with curious dark lanes running th ...
... most excellent photographs includes two of them, both in the star-cluster M8. The larger, which is roughly rectangular in outline, contains one little star, and its smaller neighbor is lune-shaped -surely a most singular form for such an object. Both are associated with curious dark lanes running th ...
Canis Minor
Canis Minor /ˌkeɪnɨs ˈmaɪnər/ is a small constellation in the northern celestial hemisphere. In the second century, it was included as an asterism, or pattern, of two stars in Ptolemy's 48 constellations, and it is counted among the 88 modern constellations. Its name is Latin for ""lesser dog"", in contrast to Canis Major, the ""greater dog""; both figures are commonly represented as following the constellation of Orion the hunter.Canis Minor contains only two stars brighter than the fourth magnitude, Procyon (Alpha Canis Minoris), with a magnitude of 0.34, and Gomeisa (Beta Canis Minoris), with a magnitude of 2.9. The constellation's dimmer stars were noted by Johann Bayer, who named eight stars including Alpha and Beta, and John Flamsteed, who numbered fourteen. Procyon is the seventh-brightest star in the night sky, as well as one of the closest. A yellow-white main sequence star, it has a white dwarf companion. Gomeisa is a blue-white main sequence star. Luyten's Star is a ninth-magnitude red dwarf and the Solar System's next closest stellar neighbour in the constellation after Procyon. The fourth-magnitude HD 66141, which has evolved into an orange giant towards the end of its life cycle, was discovered to have a planet in 2012. There are two faint deep sky objects within the constellation's borders. The 11 Canis-Minorids are a meteor shower that can be seen in early December.