Astronomy Merit Badge Workshop
... First check to see whether it is a morning or evening moon and choose a time to view the moon. Avoid an observation period when there will be a new moon. Choose a time and place you are going to be able to observe the moon each day. On the first day, sketch the relative position of the moon across t ...
... First check to see whether it is a morning or evening moon and choose a time to view the moon. Avoid an observation period when there will be a new moon. Choose a time and place you are going to be able to observe the moon each day. On the first day, sketch the relative position of the moon across t ...
School Supplies - Rowan County Schools
... _____________ telescopes to “see” the center of the galaxy We can’t actually “see” the center of the galaxy because of ____ and ___! The Milky Way is getting ________ because it is “eating” the Large Magellanic Cloud. Its stars are being added to the Milky Way. The Milky Way is falling toward ...
... _____________ telescopes to “see” the center of the galaxy We can’t actually “see” the center of the galaxy because of ____ and ___! The Milky Way is getting ________ because it is “eating” the Large Magellanic Cloud. Its stars are being added to the Milky Way. The Milky Way is falling toward ...
Gravitational redshifts
... synthetic line profiles) are shorter than laboratory values due to convective blueshift. Curves before and after mid-transit (µ = 0.21, 0.59, 0.87) are not exact mirror images due to intrinsic stellar line asymmetries. This simulation from a CO5BOLD model predicts the behavior of an Fe I line ( 620 ...
... synthetic line profiles) are shorter than laboratory values due to convective blueshift. Curves before and after mid-transit (µ = 0.21, 0.59, 0.87) are not exact mirror images due to intrinsic stellar line asymmetries. This simulation from a CO5BOLD model predicts the behavior of an Fe I line ( 620 ...
Related Handout - Orange County Astronomers
... More than half the stars we see are multiple systems consisting of two or more stars. It may happen that two stars appear to be close together from the observer’s point of view but they are really distant from each other. These are called optical binaries but they are not real binary systems. A more ...
... More than half the stars we see are multiple systems consisting of two or more stars. It may happen that two stars appear to be close together from the observer’s point of view but they are really distant from each other. These are called optical binaries but they are not real binary systems. A more ...
Photoelectric Photometry of the Pleiades
... attached to a moderate sized research telescope. The telescope is controlled by a computer that allows you to move from star to star and make measurements. Different filters (Ultraviolet, Blue and Visual) are selected for each observation, and the integration time (the length of time the photometer ...
... attached to a moderate sized research telescope. The telescope is controlled by a computer that allows you to move from star to star and make measurements. Different filters (Ultraviolet, Blue and Visual) are selected for each observation, and the integration time (the length of time the photometer ...
STAAR Science Tutorial 35 TEK 8.8B: The Sun
... TEK 8.8B: Recognize that the Sun is a medium-sized star near the edge of a disc-shaped galaxy of stars and that the Sun is many thousands of times closer to Earth than any other star. Our Sun is a star, much like all of the other stars that are visible in the night sky. What makes our Sun different ...
... TEK 8.8B: Recognize that the Sun is a medium-sized star near the edge of a disc-shaped galaxy of stars and that the Sun is many thousands of times closer to Earth than any other star. Our Sun is a star, much like all of the other stars that are visible in the night sky. What makes our Sun different ...
astrocoursespring2012lec4
... In cosmological redshift, the wavelength at which the radiation is originally emitted is (only) lengthened as it travels through (expanding) space. A Cosmological redshift results from the expansion of space itself and not from the motion of the object. So the recessional velocity is not the galaxie ...
... In cosmological redshift, the wavelength at which the radiation is originally emitted is (only) lengthened as it travels through (expanding) space. A Cosmological redshift results from the expansion of space itself and not from the motion of the object. So the recessional velocity is not the galaxie ...
The supernova of AD1181 – an update
... although there is evidence for a central compact source from X-ray observations (Helfand, Becker and White 1995). The Crab nebula and 3C 58 are both members of the “filled-centre” class of SNRs, which contains about 10 known objects in the Galaxy, all of which show such centrally brightened morpholo ...
... although there is evidence for a central compact source from X-ray observations (Helfand, Becker and White 1995). The Crab nebula and 3C 58 are both members of the “filled-centre” class of SNRs, which contains about 10 known objects in the Galaxy, all of which show such centrally brightened morpholo ...
Chapter 25 PowerPoint
... SGR 1806-20. It was a 22.7 on the Richter scale. The quake released enough gamma radiation that had it been within 10 ly of Earth (it is 50,000 ly away) it would likely have caused a mass extinction. ...
... SGR 1806-20. It was a 22.7 on the Richter scale. The quake released enough gamma radiation that had it been within 10 ly of Earth (it is 50,000 ly away) it would likely have caused a mass extinction. ...
harrold_kajubi_astro1
... illustrate stellar evolution. Mees data overplotted. (Durrell and Harris, ...
... illustrate stellar evolution. Mees data overplotted. (Durrell and Harris, ...
PowerPoint - Division for Planetary Sciences
... • If the planet rotates faster it would have two sunrises & sunsets each day Which Sun rose first could vary. The Suns would move at different and variable rates through the sky. They would sometimes eclipse each other. There would still be night. Discoveries in Planetary Science ...
... • If the planet rotates faster it would have two sunrises & sunsets each day Which Sun rose first could vary. The Suns would move at different and variable rates through the sky. They would sometimes eclipse each other. There would still be night. Discoveries in Planetary Science ...
stars & galaxies
... than other galaxies. Could be formed from the collision of two different galaxies. Stars are of low mass and cannot organize into a pattern. Irregular galaxies are unevenly ...
... than other galaxies. Could be formed from the collision of two different galaxies. Stars are of low mass and cannot organize into a pattern. Irregular galaxies are unevenly ...
Part 1: If a 10000 K blackbody has a wavelength of peak emission at
... the positional accuracy is comparable to the actual parallax value. Have to make many measurements and average them. Most students made no reference to the blurring effects of the atmosphere but merely used the buzz word “atmospheric noise” or “atmospheric blockage” – while you got partial credit fo ...
... the positional accuracy is comparable to the actual parallax value. Have to make many measurements and average them. Most students made no reference to the blurring effects of the atmosphere but merely used the buzz word “atmospheric noise” or “atmospheric blockage” – while you got partial credit fo ...
Astronomers Find Extremely Large Planet
... Interestingly, these newly discovered silhouette disks are located in several dense clusters composed of hundreds of young forming stars. The fact that the FLAMINGOS survey only found silhouette disks in clusters and not peppered thoughout the immense volume of the molecular clouds supports the poin ...
... Interestingly, these newly discovered silhouette disks are located in several dense clusters composed of hundreds of young forming stars. The fact that the FLAMINGOS survey only found silhouette disks in clusters and not peppered thoughout the immense volume of the molecular clouds supports the poin ...
Activity: Stellar Evolution Scavenger Hunt - Chandra X
... moderately massive stars. Intervening dust from the Milky Way's disk slightly obscures our view, dimming the pair's overall brightness by about a factor of five. The two clusters (known as NGC 884 and NGC 869) are strikingly similar in many ways and are believed to have originated from a single ance ...
... moderately massive stars. Intervening dust from the Milky Way's disk slightly obscures our view, dimming the pair's overall brightness by about a factor of five. The two clusters (known as NGC 884 and NGC 869) are strikingly similar in many ways and are believed to have originated from a single ance ...
Оценка качества согласования лазера с т
... directions are in degrees relatively to the abscissa axe in the field of view. Arrows indicate the start of the pass. ...
... directions are in degrees relatively to the abscissa axe in the field of view. Arrows indicate the start of the pass. ...
June 2013 Kepler Space Telescope Update
... the two galaxies involved, but also because it exposes a crucial, intermediate step of the formation process. Such starbursting galaxies have very short lifetimes – in cosmological terms – so seeing a pair 'in action' is extremely rare and valuable to constrain models for the formation and evolution ...
... the two galaxies involved, but also because it exposes a crucial, intermediate step of the formation process. Such starbursting galaxies have very short lifetimes – in cosmological terms – so seeing a pair 'in action' is extremely rare and valuable to constrain models for the formation and evolution ...
Stars change over their life cycles.
... How do the stars shown in this illustration differ in the main-sequence stage of their life cycles? ...
... How do the stars shown in this illustration differ in the main-sequence stage of their life cycles? ...
PRIMARY SOURCE from Starry Messenger
... reat indeed are the things which in this brief treatise I propose for observation and consideration by all students of nature. I say great, because of the excellence of the subject itself, the entirely unexpected and novel character of these things, and finally because of the instrument by means of w ...
... reat indeed are the things which in this brief treatise I propose for observation and consideration by all students of nature. I say great, because of the excellence of the subject itself, the entirely unexpected and novel character of these things, and finally because of the instrument by means of w ...
The First Star at Night
... Canopus is the second brightest star in the night sky, so given that it is always above our horizon from here in Tasmania, one might expect that without Sirius in the sky, Canopus would always be the first star visible. However, it is rather more complicated than that. Even though we can always see ...
... Canopus is the second brightest star in the night sky, so given that it is always above our horizon from here in Tasmania, one might expect that without Sirius in the sky, Canopus would always be the first star visible. However, it is rather more complicated than that. Even though we can always see ...
Constituents of the Milky Way
... For individual stars that aren’t in clusters (like the Sun), we can’t use the cluster turnoff method to measure an age. For instance, a lone G star might be young, or it might be 10 billion years old. How do we measure its age? The universe contained only hydrogen, helium, and one other element (lit ...
... For individual stars that aren’t in clusters (like the Sun), we can’t use the cluster turnoff method to measure an age. For instance, a lone G star might be young, or it might be 10 billion years old. How do we measure its age? The universe contained only hydrogen, helium, and one other element (lit ...
Hipparcos
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993. It was the first space experiment devoted to precision astrometry, the accurate measurement of the positions of celestial objects on the sky. This permitted the accurate determination of proper motions and parallaxes of stars, allowing a determination of their distance and tangential velocity. When combined with radial-velocity measurements from spectroscopy, this pinpointed all six quantities needed to determine the motion of stars. The resulting Hipparcos Catalogue, a high-precision catalogue of more than 118,200 stars, was published in 1997. The lower-precision Tycho Catalogue of more than a million stars was published at the same time, while the enhanced Tycho-2 Catalogue of 2.5 million stars was published in 2000. Hipparcos ' follow-up mission, Gaia, was launched in 2013.The word ""Hipparcos"" is an acronym for High precision parallax collecting satellite and also a reference to the ancient Greek astronomer Hipparchus of Nicaea, who is noted for applications of trigonometry to astronomy and his discovery of the precession of the equinoxes.