100 Binocular Deep Sky Objects
... 100 Binocular Deep Sky Objects for Observing as Groups An observing list from the logs of Ed Zarenski Sometimes we hear binocular observers ask, What is there to look at? Binoculars are useful for wide-field viewing and there just aren’t a lot of wide-field objects to view, so where should I look? M ...
... 100 Binocular Deep Sky Objects for Observing as Groups An observing list from the logs of Ed Zarenski Sometimes we hear binocular observers ask, What is there to look at? Binoculars are useful for wide-field viewing and there just aren’t a lot of wide-field objects to view, so where should I look? M ...
The H-R Diagram
... our atmosphere. This C14 has a half-life of 5,730 years and is incorporated like other carbon into living tissue and is a very useful “clock” for age-dating recent fossils. Use the ratio of C14/C12 ratio in air as a starting point in your plant sample, and measure the ratio incorporated in your samp ...
... our atmosphere. This C14 has a half-life of 5,730 years and is incorporated like other carbon into living tissue and is a very useful “clock” for age-dating recent fossils. Use the ratio of C14/C12 ratio in air as a starting point in your plant sample, and measure the ratio incorporated in your samp ...
The Ionization Structure of the Irregular Galaxy NGC 4449
... elliptical and irregular. Examples are shown in Figures 1a, b and c. More details about galaxies can be found in the article from this conference by K. Banks and I. Lister. A galaxy which belongs to one of these three types may also belong to a subtype known as a starburst galaxy. Starburst galaxies ...
... elliptical and irregular. Examples are shown in Figures 1a, b and c. More details about galaxies can be found in the article from this conference by K. Banks and I. Lister. A galaxy which belongs to one of these three types may also belong to a subtype known as a starburst galaxy. Starburst galaxies ...
ppt
... Brightest star method – identify the brightest “star” in the galaxy and assume that it is the same as the brightest star in nearby galaxies. BUT, brightest object may not be a star at all! Overall galactic apparent brightness method – for distant galaxies, simply use overall brightness of galaxy to ...
... Brightest star method – identify the brightest “star” in the galaxy and assume that it is the same as the brightest star in nearby galaxies. BUT, brightest object may not be a star at all! Overall galactic apparent brightness method – for distant galaxies, simply use overall brightness of galaxy to ...
Determining the Sizes & Distances of Stars Using the H
... and colder stars to the right. More luminous (intrinsically bright) stars lie at the top of the diagram and lower luminosity (intrinsically faint) stars lie at the bottom of the diagram. Review that stars are grouped into four different categories in the HR Diagram: ● Main Sequence Stars: The charac ...
... and colder stars to the right. More luminous (intrinsically bright) stars lie at the top of the diagram and lower luminosity (intrinsically faint) stars lie at the bottom of the diagram. Review that stars are grouped into four different categories in the HR Diagram: ● Main Sequence Stars: The charac ...
Your Star: _____________________ Write down the wavelength at which the one
... of some of the well-known stars to calculate, using the formulas and methods discussed in class, their intrinsic properties (temperature, luminosity, and radius.) We will then look for patterns in these properties by way of the H-R (temperature-luminosity) diagram. Your group will be in charge of a ...
... of some of the well-known stars to calculate, using the formulas and methods discussed in class, their intrinsic properties (temperature, luminosity, and radius.) We will then look for patterns in these properties by way of the H-R (temperature-luminosity) diagram. Your group will be in charge of a ...
Why are Binary Stars so Important for the Theory
... sorts are published in the literature, but still we know accurate masses, radii and luminosities for very few stars, certainly fewer than ten. Several accurate light-curves have been published but in most cases for systems with complications like strong deformation of the components or surrounding g ...
... sorts are published in the literature, but still we know accurate masses, radii and luminosities for very few stars, certainly fewer than ten. Several accurate light-curves have been published but in most cases for systems with complications like strong deformation of the components or surrounding g ...
thefixedstarsinnatal.. - Saptarishis Astrology
... The fixed stars operate by position and are said to "cast no rays," or in other words their aspects are said to be ineffective and their influence to be exerted only by conjunction and parallel. As in the case of the planets they are most powerful when in angles and weak when cadent, their effect b ...
... The fixed stars operate by position and are said to "cast no rays," or in other words their aspects are said to be ineffective and their influence to be exerted only by conjunction and parallel. As in the case of the planets they are most powerful when in angles and weak when cadent, their effect b ...
Linking Asteroids and Meteorites through Reflectance
... • About half of stars orbit a companion • 3 classes of binaries ...
... • About half of stars orbit a companion • 3 classes of binaries ...
The Hubble Space Telescope - the first 10 years
... become a giant elliptical. The core of each galaxy is seen in red and most likely each core contains a giant black hole. • Our galaxy is on collision course with Andromeda and one day may look like this. ...
... become a giant elliptical. The core of each galaxy is seen in red and most likely each core contains a giant black hole. • Our galaxy is on collision course with Andromeda and one day may look like this. ...
ph507lecnote06
... Technological advances (including the Hubble Space Telescope) have improved parallax accuracy to 0.001” within a few years. Before 1990, fewer than 10,000 stellar parallaxes had been measured (and only 500 known well), but there are about 1012 stars in our Galaxy. Space observations made by the Euro ...
... Technological advances (including the Hubble Space Telescope) have improved parallax accuracy to 0.001” within a few years. Before 1990, fewer than 10,000 stellar parallaxes had been measured (and only 500 known well), but there are about 1012 stars in our Galaxy. Space observations made by the Euro ...
Radio-quiet Isolated Neutron Stars
... (Drake, J.J., Marshall, H.L., Dreizler, S., Freeman, P.E., Fruscione, A., Juda, M., Kashyap, V., Nicastro, F., Pease, D.O., Wargelin, B.J., & Werner, K. 2002, APJ, 572, 996) ...
... (Drake, J.J., Marshall, H.L., Dreizler, S., Freeman, P.E., Fruscione, A., Juda, M., Kashyap, V., Nicastro, F., Pease, D.O., Wargelin, B.J., & Werner, K. 2002, APJ, 572, 996) ...
P10263v1.2 Lab 6 Text
... absolute luminosity. Combined with the measured apparent luminosity and an estimate of “X”, we were able to find the distance to that cluster. Finding the distance to other galaxies, however, can be a bit more difficult. Whereas the Pleiades cluster is about 120 parsecs away, the Small Magellanic Cl ...
... absolute luminosity. Combined with the measured apparent luminosity and an estimate of “X”, we were able to find the distance to that cluster. Finding the distance to other galaxies, however, can be a bit more difficult. Whereas the Pleiades cluster is about 120 parsecs away, the Small Magellanic Cl ...
The Big Dipper Constellation
... The Big Dipper What is a Constellation? From very early times, man has been fascinated by the stars. Early stargazers began naming stars. They also noticed patterns of stars that appeared night after night in the sky. These patterns or groupings of stars are called constellations. They also began to ...
... The Big Dipper What is a Constellation? From very early times, man has been fascinated by the stars. Early stargazers began naming stars. They also noticed patterns of stars that appeared night after night in the sky. These patterns or groupings of stars are called constellations. They also began to ...
D1 Stellar quantities (PPT)
... ▪ Initially the cloud was about several light years across. A small overdensity in the cloud caused the contraction to begin and the overdensity to grow, thus producing a faster contraction ▪ Initially, most of the motions of the cloud particles were random, yet the nebula had a net rotation. As col ...
... ▪ Initially the cloud was about several light years across. A small overdensity in the cloud caused the contraction to begin and the overdensity to grow, thus producing a faster contraction ▪ Initially, most of the motions of the cloud particles were random, yet the nebula had a net rotation. As col ...
Astronomy Club
... correspond to a sequence of decreasing surface temperatures and hence intrinsic luminosity i.e. energy emitted per unit time. So various spectral types of stars are: O ...
... correspond to a sequence of decreasing surface temperatures and hence intrinsic luminosity i.e. energy emitted per unit time. So various spectral types of stars are: O ...
Transcript - Chandra X
... are more diverse and complicated than this diagram would lead you to believe. For instance, there are many more stellar classes than OBAFGKM; however for simplicity’s sake, only the classes that contain a large majority are shown. Absolute magnitude – the intrinsic brightness of stars – is similar ...
... are more diverse and complicated than this diagram would lead you to believe. For instance, there are many more stellar classes than OBAFGKM; however for simplicity’s sake, only the classes that contain a large majority are shown. Absolute magnitude – the intrinsic brightness of stars – is similar ...
FREE Sample Here
... during the daylight hours as well, while still showing the blue sky of day. Next click on the tool bar icon to view the eastern horizon. You can observe the general motion of objects as they rise at your location. Do this also looking at the south and west horizons. You can also demonstrate the effe ...
... during the daylight hours as well, while still showing the blue sky of day. Next click on the tool bar icon to view the eastern horizon. You can observe the general motion of objects as they rise at your location. Do this also looking at the south and west horizons. You can also demonstrate the effe ...
Galaxies • Test 3 (New date) – Thurs, 9 April
... A gas cloud moves under influence of the gravity of the galaxy. The gas cloud moves once around the galaxy in a specified orbit. If the time is short, the mass of the galaxy is greater. Write an equivalent statement for the galaxy NGC 3672 Mass ...
... A gas cloud moves under influence of the gravity of the galaxy. The gas cloud moves once around the galaxy in a specified orbit. If the time is short, the mass of the galaxy is greater. Write an equivalent statement for the galaxy NGC 3672 Mass ...
PHYS-633: Problem set #0 Solutions
... with the moon’s albedo of 0.07 (meaning the moon reflects back 7% of the sunlight that hits its surface) to estimate how much dimmer the full moon appears in optical light compared to sunlight on Earth. Since the solar flux declines as (R /ae )2 , then a perfectly reflecting moon would have its sur ...
... with the moon’s albedo of 0.07 (meaning the moon reflects back 7% of the sunlight that hits its surface) to estimate how much dimmer the full moon appears in optical light compared to sunlight on Earth. Since the solar flux declines as (R /ae )2 , then a perfectly reflecting moon would have its sur ...
Perseus (constellation)
Perseus, named after the Greek mythological hero Perseus, is a constellation in the northern sky. It was one of 48 listed by the 2nd-century astronomer Ptolemy and among the 88 modern constellations defined by the International Astronomical Union (IAU). It is located in the northern celestial hemisphere near several other constellations named after legends surrounding Perseus, including Andromeda to the west and Cassiopeia to the north. Perseus is also bordered by Aries and Taurus to the south, Auriga to the east, Camelopardalis to the north, and Triangulum to the west.The galactic plane of the Milky Way passes through Perseus but is mostly obscured by molecular clouds. The constellation's brightest star is the yellow-white supergiant Alpha Persei (also called Mirfak), which shines at magnitude 1.79. It and many of the surrounding stars are members of an open cluster known as the Alpha Persei Cluster. The best-known star, however, is Algol (Beta Persei), linked with ominous legends because of its variability, which is noticeable to the naked eye. Rather than being an intrinsically variable star, it is an eclipsing binary. Other notable star systems in Perseus include X Persei, a binary system containing a neutron star, and GK Persei, a nova that peaked at magnitude 0.2 in 1901. The Double Cluster, comprising two open clusters quite near each other in the sky, was known to the ancient Chinese. The constellation gives its name to the Perseus Cluster (Abell 426), a massive galaxy cluster located 250 million light-years from Earth. It hosts the radiant of the annual Perseids meteor shower—one of the most prominent meteor showers in the sky.