August 2014 Saguaro Skies
... Now for October we’ll visit Sagitta, Pegasus and Aquarius. First is Sagitta and an open cluster that probably isn’t on many observing lists. It is Harvard 20 and since it isn’t that well known here are the coordinates RA 19 53.1 Dec +18 21. It is in a rich Milky Way field and doesn’t stand out well ...
... Now for October we’ll visit Sagitta, Pegasus and Aquarius. First is Sagitta and an open cluster that probably isn’t on many observing lists. It is Harvard 20 and since it isn’t that well known here are the coordinates RA 19 53.1 Dec +18 21. It is in a rich Milky Way field and doesn’t stand out well ...
Slide 1
... Exoplanet surveys • Exoplanetary microlensing is a low probability phenomenon. • In order to monitor many potential events, we need — A Wide-field survey — Pointed at a region that is dense in stars, e.g. the galactic bulge ...
... Exoplanet surveys • Exoplanetary microlensing is a low probability phenomenon. • In order to monitor many potential events, we need — A Wide-field survey — Pointed at a region that is dense in stars, e.g. the galactic bulge ...
IAUS 298: Setting the Scene for Gaia and LAMOST, The current and
... It was suggested to do a next IAU meeting on the Galaxy in Hawaii 2015. The proceedings will be available at the end of the year or beginning of the next year. The program is available here: http://iaus298.csp.escience.cn/dct/page/1 The meeting was organized in honor of J. Andersen and B. Nordstrom. ...
... It was suggested to do a next IAU meeting on the Galaxy in Hawaii 2015. The proceedings will be available at the end of the year or beginning of the next year. The program is available here: http://iaus298.csp.escience.cn/dct/page/1 The meeting was organized in honor of J. Andersen and B. Nordstrom. ...
Papervision3D star (sun) tutorial and source - 02
... The star’s gradient Actually, it took quite some tweaking to get a nice gradient of white in the middle and yellow to red on the edge. It’s a basic Sprite gradient fill, using three colors, alpha layering and a specific color ratio array to get the last two colors (yellow and red) on the edge. Then ...
... The star’s gradient Actually, it took quite some tweaking to get a nice gradient of white in the middle and yellow to red on the edge. It’s a basic Sprite gradient fill, using three colors, alpha layering and a specific color ratio array to get the last two colors (yellow and red) on the edge. Then ...
Planet formation - problems and future
... - The accretion theory assumes that the Sun passed through a dense interstellar cloud and emerged surrounded by a dusty, gaseous envelope. - The protoplanet theory assumes that initially there is a dense interstellar cloud, which will eventually produce a cluster of stars. Dense regions in the cloud ...
... - The accretion theory assumes that the Sun passed through a dense interstellar cloud and emerged surrounded by a dusty, gaseous envelope. - The protoplanet theory assumes that initially there is a dense interstellar cloud, which will eventually produce a cluster of stars. Dense regions in the cloud ...
Chapter 17
... A. of their period-luminosity relation. B. they are all at the same distance. C. they are all in the field of view of the galaxy center. D. as a class, they have similar luminosities. 17. The "orbits" of the stars in our galaxy do not follow the laws of Kepler. We understand this to be due to: A. pr ...
... A. of their period-luminosity relation. B. they are all at the same distance. C. they are all in the field of view of the galaxy center. D. as a class, they have similar luminosities. 17. The "orbits" of the stars in our galaxy do not follow the laws of Kepler. We understand this to be due to: A. pr ...
Astronomy Exam - domenicoscience
... 78. Describe the most widely accepted theory of the origin of the moon. 79. The moon appears to rotate from east to west around the Earth, but it is an illusion. Explain why the illusion happens. 80. Given two telescopes one meter long, why is the focal length greater on the reflector than on the re ...
... 78. Describe the most widely accepted theory of the origin of the moon. 79. The moon appears to rotate from east to west around the Earth, but it is an illusion. Explain why the illusion happens. 80. Given two telescopes one meter long, why is the focal length greater on the reflector than on the re ...
Observing the Sky
... apparent that the telescope was not operating correctly – images transmitted back to Earth were unfortunately blurred. It was discovered that there was a minute flaw in the telescope’s main mirror. The mirror had been grounded about 0.0002 cm (about 1/50 the width of a human hair) flatter than it sh ...
... apparent that the telescope was not operating correctly – images transmitted back to Earth were unfortunately blurred. It was discovered that there was a minute flaw in the telescope’s main mirror. The mirror had been grounded about 0.0002 cm (about 1/50 the width of a human hair) flatter than it sh ...
Document
... Earlier in this chapter you read that observations of Polaris, the North Star, were used to show that Earth is a sphere. Those ob servations can also be used to tell how far north a person is from the equator, Earth rotates on its axis. There is no scientific reason that Earth's axis should be poin ...
... Earlier in this chapter you read that observations of Polaris, the North Star, were used to show that Earth is a sphere. Those ob servations can also be used to tell how far north a person is from the equator, Earth rotates on its axis. There is no scientific reason that Earth's axis should be poin ...
June - astra
... During a lunar eclipse, the Moon may look like an orange ball. We can still see it because it reflects some sunlight that has grazed Earth's atmosphere, becoming reddened and scattered by the atmosphere as if at sunset. There is one other very rare eclipse that we can also see happening before our v ...
... During a lunar eclipse, the Moon may look like an orange ball. We can still see it because it reflects some sunlight that has grazed Earth's atmosphere, becoming reddened and scattered by the atmosphere as if at sunset. There is one other very rare eclipse that we can also see happening before our v ...
- EPJ Web of Conferences
... is a quantification of the dramatically plateau-like relation between element ratios and [Fe/H] across the range of abundances relevant to Galactic halo stars. For clarity we note that the systematically low ratios of [/Fe] seen in dSph stars, compared to Galactic stars of comparable [Fe/H], do not ...
... is a quantification of the dramatically plateau-like relation between element ratios and [Fe/H] across the range of abundances relevant to Galactic halo stars. For clarity we note that the systematically low ratios of [/Fe] seen in dSph stars, compared to Galactic stars of comparable [Fe/H], do not ...
PHYS3380_102815_bw - The University of Texas at Dallas
... collimated jets of partially ionized plasma moving away from young stars at speeds of 100 to over 1000 km/s. ...
... collimated jets of partially ionized plasma moving away from young stars at speeds of 100 to over 1000 km/s. ...
Lecture04
... • What would “star trails” look like as viewed from various locations on Earth? • Example #1: You live on the North Pole • Example #2: You live on the Equator • Example #3: You live at other latitudes. ...
... • What would “star trails” look like as viewed from various locations on Earth? • Example #1: You live on the North Pole • Example #2: You live on the Equator • Example #3: You live at other latitudes. ...
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.