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... B. Which are further away, spiral galaxies or bright nebulae? Why do they show the correlation you found in II B? C. Suggest how you could use this software to verify easily the curve of "hours of daylight vs. month" deduced laboriously in the previous lab exercise on the celestial sphere. ...
Solutions
Solutions

... by the newly formed OB Association stars that emit most of their energy as high-energy short-wavelength hardUV photons. The photons from the OB Association stars “power up” the HII region and keep it fluorescing. Thus the OB Association forms first and then the HII region is created around the vicin ...
A small mass difference between Hydrogen and Helium The
A small mass difference between Hydrogen and Helium The

... can often determine the radius of the orbit, and orbital speeds, and thus the masses of the stars From observations of binaries, we have the masses Of a sample of stars, and can study how stellar Properties depend on mass. ...
The power plant of the Sun and stars
The power plant of the Sun and stars

... can often determine the radius of the orbit, and orbital speeds, and thus the masses of the stars From observations of binaries, we have the masses Of a sample of stars, and can study how stellar Properties depend on mass. ...
Masses are much harder than distance, luminosity, or temperature
Masses are much harder than distance, luminosity, or temperature

The HR Diagram (PowerPoint version)
The HR Diagram (PowerPoint version)

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Friday, Oct. 17

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The correct answers are written in bold, italic and underlined. The

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Autumn All Sky Star Map - The American Association of Amateur

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Astronomy Club of Asheville June 2016 Sky Events

...  Against the background of the constellation Leo, Jupiter is best viewed this month well before midnight, while it is still high in the sky.  Mars reached opposition (opposite the Sun from Earth) on May 22nd; so it’s nearest to Earth for the year, making this month an ideal time to observe its pla ...
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Stars - cayugascience

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Nucleus hydrogen helium Relative Mass 1.007825 4.0037 Helium

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The Closest New Stars To Earth
The Closest New Stars To Earth

... reddening the light of background stars. In the infrared, though, the gas glows brilliantly as it forms new stars inside. Combined near-infrared and visible light observations, such as those taken by the Hubble Space Telescope, can reveal the structure of the clouds as well as the young stars inside ...
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answers2008_09_BC

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The Stars education kit - Student activities 5-10

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Montage of Jupiter and the Galilean satellites

... erupted on May 15, throwing electrons and ions out into the Solar System. The image was taken in the ultraviolet light emitted by a specific type of ionized helium , a common element on the Sun. Particularly hot areas appear in white, while relatively cool areas appear in red. Our Sun should gradual ...
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1 Astronomical Measurements and Quantities 2 Astronomical Objects

Standard Set 2 - Atascadero High School
Standard Set 2 - Atascadero High School

< 1 ... 213 214 215 216 217 218 219 220 221 ... 393 >

Ursa Minor



Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.
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