Note Taking Guide #2: Characteristics of Stars Welcome back! As
... sun versus Alpha Centauri; the sun appears to give off much more light, even though the two stars are actually very similar in size and temperature. A star’s absolute magnitude is how much light a star would actually give off if it were a standard distance from Erath. Think of it this way: two simil ...
... sun versus Alpha Centauri; the sun appears to give off much more light, even though the two stars are actually very similar in size and temperature. A star’s absolute magnitude is how much light a star would actually give off if it were a standard distance from Erath. Think of it this way: two simil ...
Background Information - Eu-Hou
... amount of light from the star in one filter compared to another. The most common colour system is B-V, which is simply an object’s magnitude as measured through the B filter, minus its magnitude as measured through the V filter. The luminosity of a star can be determined from its magnitude and dista ...
... amount of light from the star in one filter compared to another. The most common colour system is B-V, which is simply an object’s magnitude as measured through the B filter, minus its magnitude as measured through the V filter. The luminosity of a star can be determined from its magnitude and dista ...
JPL Small-Body Database Browser
... • Note that the stars at the cooler end of the classifications (K, M classes) don’t emit much at the blue end of the spectrum (and tend to show many more absorption lines) while the starts at the hotter end of the classifications (O, B, A classes) don’t emit much at the red end of the spectrum – W ...
... • Note that the stars at the cooler end of the classifications (K, M classes) don’t emit much at the blue end of the spectrum (and tend to show many more absorption lines) while the starts at the hotter end of the classifications (O, B, A classes) don’t emit much at the red end of the spectrum – W ...
The Hertzsprung-Russell Diagram
... Astronomers reasoned that if a star were hotter, it should have a higher luminosity, and a cooler star would be dimmer. As it turns out, most stars fit this pattern. They can be found on the HR Diagram in the large group that stretches across the middle of the diagram. These are called the Main Sequ ...
... Astronomers reasoned that if a star were hotter, it should have a higher luminosity, and a cooler star would be dimmer. As it turns out, most stars fit this pattern. They can be found on the HR Diagram in the large group that stretches across the middle of the diagram. These are called the Main Sequ ...
3 sr -1
... The magnitude scale system can be extended towards negative numbers (very bright) and numbers > 6 (faint objects): Sirius (brightest star in the sky): mv = -1.42 Full moon: mv = -12.5 Sun: mv = -26.5 ...
... The magnitude scale system can be extended towards negative numbers (very bright) and numbers > 6 (faint objects): Sirius (brightest star in the sky): mv = -1.42 Full moon: mv = -12.5 Sun: mv = -26.5 ...
Constellation Notes
... The sky was divided up into 88 different constellations in 1922. This included 48 ancient constellations listed by the Greek astronomer Ptolemy as well as 40 new constellations. Star Maps The 88 different constellations divide up the entire night sky as seen from all around the Earth. Star maps are ...
... The sky was divided up into 88 different constellations in 1922. This included 48 ancient constellations listed by the Greek astronomer Ptolemy as well as 40 new constellations. Star Maps The 88 different constellations divide up the entire night sky as seen from all around the Earth. Star maps are ...
Section 3: Evolution of Stars pages 114-119
... Obj: Explain why some constellations are only visible during certain season Because the earth is in constant motion. The earth orbits the sun so during certain seasons the earth is different locations around the sun so there are different stars visible in the night time sky. Obj: Distinguish be ...
... Obj: Explain why some constellations are only visible during certain season Because the earth is in constant motion. The earth orbits the sun so during certain seasons the earth is different locations around the sun so there are different stars visible in the night time sky. Obj: Distinguish be ...
8 clusters stellar evo
... HR diagram Old stars leave the main sequence Cluster age <=> turnoff point ...
... HR diagram Old stars leave the main sequence Cluster age <=> turnoff point ...
Apparent Magnitude - RanelaghALevelPhysics
... emitted per second (units of Watts). • The Sun’s luminosity is about 4 x 1026 W. • The most luminous stars have a luminosity of about million times that of the Sun! ...
... emitted per second (units of Watts). • The Sun’s luminosity is about 4 x 1026 W. • The most luminous stars have a luminosity of about million times that of the Sun! ...
Lecture 12
... The magnitude system • Astronomers quantify the intensity of light produced by a source with the unit magnitudes • Magnitudes are a logarithmic representation of the spectral flux density of a source. – Allows for easy comparison of sources with immense ranges in ...
... The magnitude system • Astronomers quantify the intensity of light produced by a source with the unit magnitudes • Magnitudes are a logarithmic representation of the spectral flux density of a source. – Allows for easy comparison of sources with immense ranges in ...
Telescopes (continued). Properties of Stars.
... light as the Sun, but it is located 27,000 times further away from Earth than the Sun. Thus, its apparent brightness is 70 billion times less than that of the Sun. ...
... light as the Sun, but it is located 27,000 times further away from Earth than the Sun. Thus, its apparent brightness is 70 billion times less than that of the Sun. ...
Stellar Physics Lecture 1
... Procyon, 9Capella, 10Arcturus, 11Aldebaran, 12Antares, 13Betelgeuse ...
... Procyon, 9Capella, 10Arcturus, 11Aldebaran, 12Antares, 13Betelgeuse ...
THE HR DIAGRAM
... astronomer, Henry Norris Russell, created a plot of luminosity vs. temperature for many stars. Their investigations were seen as roughly equivalent, and the Hertzsprung-Russell (HR) diagram is a result of their findings. The HR diagram included at the end of this Discussion Sheet is called a general ...
... astronomer, Henry Norris Russell, created a plot of luminosity vs. temperature for many stars. Their investigations were seen as roughly equivalent, and the Hertzsprung-Russell (HR) diagram is a result of their findings. The HR diagram included at the end of this Discussion Sheet is called a general ...
The Life Cycle of a Star Webquest
... 18. If you were in a spaceship would you be able to see a star twinkling? ____________ Why? ______________________________________________________________________________ ...
... 18. If you were in a spaceship would you be able to see a star twinkling? ____________ Why? ______________________________________________________________________________ ...
a. Recognize the physical attributes of stars in the night sky such as
... Yvonne looks at the stars in the night sky through a telescope. She sees four stars that have different colors. One star is blue, one is white, one looks yellow, and the fourth looks red. Which star is the coolest? a. the red star b. the blue star c. the white star d. the yellow star Answer: b How a ...
... Yvonne looks at the stars in the night sky through a telescope. She sees four stars that have different colors. One star is blue, one is white, one looks yellow, and the fourth looks red. Which star is the coolest? a. the red star b. the blue star c. the white star d. the yellow star Answer: b How a ...
Chapter 25 - Notes Super Size
... Stars & Galaxies Stars Constellations • _________________ of stars representing mythological characters, animals, or familiar objects. • Most constellations come from the _________________. • The stars in a constellation may appear close, however each star can be _________________ of light-years awa ...
... Stars & Galaxies Stars Constellations • _________________ of stars representing mythological characters, animals, or familiar objects. • Most constellations come from the _________________. • The stars in a constellation may appear close, however each star can be _________________ of light-years awa ...
Starry Night¨ Times - October 2008
... Visible towards the southern horizon from winter through spring in the northern hemisphere, Orion is one of the most easily recognizable and beloved constellations. By far, the most popular celestial gem in the constellation of Orion is M42, The Great Orion Nebula. Although it is 1500 lightyears awa ...
... Visible towards the southern horizon from winter through spring in the northern hemisphere, Orion is one of the most easily recognizable and beloved constellations. By far, the most popular celestial gem in the constellation of Orion is M42, The Great Orion Nebula. Although it is 1500 lightyears awa ...
Auriga (constellation)
Auriga is one of the 48 constellations listed by the 2nd-century astronomer Ptolemy and remains one of the 88 modern constellations. Located north of the celestial equator, its name is the Latin word for ""charioteer"", associating it with various mythological charioteers, including Erichthonius and Myrtilus. Auriga is most prominent during winter evenings in the Northern Hemisphere, along with the five other constellations that have stars in the Winter Hexagon asterism. Because of its northern declination, Auriga is only visible in its entirety as far as 34° south; for observers farther south it lies partially or fully below the horizon. A large constellation, with an area of 657 square degrees, it is half the size of the largest constellation, Hydra.Its brightest star, Capella, is an unusual multiple star system among the brightest stars in the night sky. Beta Aurigae is an interesting variable star in the constellation; Epsilon Aurigae, a nearby eclipsing binary with an unusually long period, has been studied intensively. Because of its position near the winter Milky Way, Auriga has many bright open clusters in its borders, including M36, M37, and M38, popular targets for amateur astronomers. In addition, it has one prominent nebula, the Flaming Star Nebula, associated with the variable star AE Aurigae.In Chinese mythology, Auriga's stars were incorporated into several constellations, including the celestial emperors' chariots, made up of the modern constellation's brightest stars. Auriga is home to the radiant for the Aurigids, Zeta Aurigids, Delta Aurigids, and the hypothesized Iota Aurigids.