The Sun - Center for Astrophysics and Space Astronomy
... • Based on the definition of a parsec , if star A has a parallax of 0.5 arcseconds and star B has a parallax of 0.75 arcseconds which one is farther from the Earth? • A. Star B is farther away because it has a higher parallax • B. Star A is farther away because it has a lower parallax • C. All stars ...
... • Based on the definition of a parsec , if star A has a parallax of 0.5 arcseconds and star B has a parallax of 0.75 arcseconds which one is farther from the Earth? • A. Star B is farther away because it has a higher parallax • B. Star A is farther away because it has a lower parallax • C. All stars ...
Name: pd: ______ Date: Constellation Scavenger Hunt! Google Sky
... 27. Travel to Covus and find the Sombrero Galaxy. Draw it here and label its parts: ...
... 27. Travel to Covus and find the Sombrero Galaxy. Draw it here and label its parts: ...
Summary of Double Star Discoveries and JDSO Submissions
... This was an outstanding example of how a visual observer can detect a double star with careful observation and recording of their observation notes. Here is the actual report excerpt: At 04:28:01.0 the magnitude 10.1 target star TYC 4677-00696-1 crisply faded but did NOT disappear. It remained at le ...
... This was an outstanding example of how a visual observer can detect a double star with careful observation and recording of their observation notes. Here is the actual report excerpt: At 04:28:01.0 the magnitude 10.1 target star TYC 4677-00696-1 crisply faded but did NOT disappear. It remained at le ...
2014-2015 SCIENCE Instructional Curriculum Plan Grade: K
... SC.5.E.5.In.1: Identify that a galaxy is made of a very large number of stars and the planets that SC.5.E.5.1 Recognize that a galaxy consists of gas, dust, and many stars, including any objects orbiting the stars. Identify orbit them. our home galaxy as the Milky Way. SC.5.E.5.Su.1: Recognize that ...
... SC.5.E.5.In.1: Identify that a galaxy is made of a very large number of stars and the planets that SC.5.E.5.1 Recognize that a galaxy consists of gas, dust, and many stars, including any objects orbiting the stars. Identify orbit them. our home galaxy as the Milky Way. SC.5.E.5.Su.1: Recognize that ...
Exploring The Universe
... • Quasars may be infant galaxies. • In 1960, a faint object was matched with a strong radio signal. This object was called a quasar. • quasar quasi-stellar radio sources; very luminous objects that produce energy at a high rate and that are thought to be the most distant objects in the universe • Ea ...
... • Quasars may be infant galaxies. • In 1960, a faint object was matched with a strong radio signal. This object was called a quasar. • quasar quasi-stellar radio sources; very luminous objects that produce energy at a high rate and that are thought to be the most distant objects in the universe • Ea ...
Lecture Nine (Powerpoint format) - Flash
... In these cases, the binary period, orbital separation, and masses can all be determined directly. ...
... In these cases, the binary period, orbital separation, and masses can all be determined directly. ...
Globular Clusters
... the distance and 2 magnitudes dimmer than 47 Tuc, but it is still one of the 15 brightest in the sky. Worth a good look while you're in the neighbourhood! Both 47 Tuc and NGC362 are visible all year round but are best late in the year. Pavo Glob, NGC 6752. (13,000ly away). One of the best globs in t ...
... the distance and 2 magnitudes dimmer than 47 Tuc, but it is still one of the 15 brightest in the sky. Worth a good look while you're in the neighbourhood! Both 47 Tuc and NGC362 are visible all year round but are best late in the year. Pavo Glob, NGC 6752. (13,000ly away). One of the best globs in t ...
Slide 1
... THE US NATIONAL VIRTUAL OBSERVATORY «100» Scientific Questions for the NVO A.The problem of heterogenous filters •Locate all B, U, & V photometric measurements of dwarf galaxies within 50 Mpc of the Earth, segregating images from catalog values. •For the measurements returned in 1., find the techni ...
... THE US NATIONAL VIRTUAL OBSERVATORY «100» Scientific Questions for the NVO A.The problem of heterogenous filters •Locate all B, U, & V photometric measurements of dwarf galaxies within 50 Mpc of the Earth, segregating images from catalog values. •For the measurements returned in 1., find the techni ...
Slide 1 - Typepad
... http://www.millstonenews.com/2012/03/themississippi-valley-conservation-authority-willonce-again-be-offering-its-astronomy-course-atthe-mill-of-kintail-on-fri.html ...
... http://www.millstonenews.com/2012/03/themississippi-valley-conservation-authority-willonce-again-be-offering-its-astronomy-course-atthe-mill-of-kintail-on-fri.html ...
Observations of binary systems with pulsating components
... • Spectroscopic binaries: stars which exhibit periodic displacement of their spectral lines owing to Doppler effect caused by orbital motion. • Depending on components’ relative brightness, the observed spectrum will show the displacement of lines of one or both components (if a star is too faint, i ...
... • Spectroscopic binaries: stars which exhibit periodic displacement of their spectral lines owing to Doppler effect caused by orbital motion. • Depending on components’ relative brightness, the observed spectrum will show the displacement of lines of one or both components (if a star is too faint, i ...
charts_set_9
... • Most of Galaxy within ~ 20 kpc (1011 - 1012 stars) • 800 kpc to M31 • Local group (about 20), radius ~ 1 Mpc • Local supercluster (about 2500), distance ~ 15 Mpc to Virgo cluster • Several other galaxy clusters to ~75 Mpc • Increasing numbers of AGNs out to radius ~ 100 Mpc • QSOs to extent of obs ...
... • Most of Galaxy within ~ 20 kpc (1011 - 1012 stars) • 800 kpc to M31 • Local group (about 20), radius ~ 1 Mpc • Local supercluster (about 2500), distance ~ 15 Mpc to Virgo cluster • Several other galaxy clusters to ~75 Mpc • Increasing numbers of AGNs out to radius ~ 100 Mpc • QSOs to extent of obs ...
OVERVIEW: Stars and space
... • to explain how stars are able to maintain their energy output for millions of years • to explain why the early Universe contained only hydrogen but now contains a large variety of different elements. Skills, knowledge and understanding of how science works set in the context of: • Our Sun is one o ...
... • to explain how stars are able to maintain their energy output for millions of years • to explain why the early Universe contained only hydrogen but now contains a large variety of different elements. Skills, knowledge and understanding of how science works set in the context of: • Our Sun is one o ...
Image Credit: NASA,ESA, HEIC, Hubble
... – Optical light is blocked by dust – Infrared gets through (wavelength large compared to size of dust grains. – Protostars only around for short time (few million years) ...
... – Optical light is blocked by dust – Infrared gets through (wavelength large compared to size of dust grains. – Protostars only around for short time (few million years) ...
Cetus and Lepus
... father, Cepheus, was told by the Oracle of Ammon that the only way to save his kingdom was to sacrifice his daughter to Cetus. She was chained to a rock by the sea but was saved by the hero Perseus, who used the head of Medusa to turn the monster into stone. ...
... father, Cepheus, was told by the Oracle of Ammon that the only way to save his kingdom was to sacrifice his daughter to Cetus. She was chained to a rock by the sea but was saved by the hero Perseus, who used the head of Medusa to turn the monster into stone. ...
LIFEPAC® 7th Grade Science Unit 3 Worktext - HomeSchool
... cloud of stars stretching across the sky. You can see a great number of stars. With a telescope you can see many more stars. People in ancient times thought that all stars were part of the Milky Way. Today we know of many other galaxies similar to the Milky Way. To study the Milky Way as a whole is ...
... cloud of stars stretching across the sky. You can see a great number of stars. With a telescope you can see many more stars. People in ancient times thought that all stars were part of the Milky Way. Today we know of many other galaxies similar to the Milky Way. To study the Milky Way as a whole is ...
The Scuti star XX Pyx is an ellipsoidal variable
... abundance values. We show that an increase in the relative number fraction of iron throughout the whole star or a large decrease in the initial hydrogen abundance make the stellar models matching the four selected modes satisfy all observational constraints and we provide the general properties of ...
... abundance values. We show that an increase in the relative number fraction of iron throughout the whole star or a large decrease in the initial hydrogen abundance make the stellar models matching the four selected modes satisfy all observational constraints and we provide the general properties of ...
Stars Part 1
... Make a plot that shows the general relationship between height and weight for humans. - now add to your plot the population of basketball players who are very tall and very thin. - now add the population of obese children •The plot would show a cluster of people that would have similar “middle-of-th ...
... Make a plot that shows the general relationship between height and weight for humans. - now add to your plot the population of basketball players who are very tall and very thin. - now add the population of obese children •The plot would show a cluster of people that would have similar “middle-of-th ...
Astrophysics
... Gamma rays, X-rays, UV, infrared and parts of the radio waveband are absorbed by the atmosphere. o Gamma rays and X-rays ionise gas molecules in the atmosphere, and therefore are strongly absorbed in the upper atmosphere. Ultraviolet radiation is mostly absorbed by the ozone layer of the atmospher ...
... Gamma rays, X-rays, UV, infrared and parts of the radio waveband are absorbed by the atmosphere. o Gamma rays and X-rays ionise gas molecules in the atmosphere, and therefore are strongly absorbed in the upper atmosphere. Ultraviolet radiation is mostly absorbed by the ozone layer of the atmospher ...
ASTR-1020: Astronomy II Course Lecture Notes - Faculty
... e) Population I star Cepheids (called Type I or classical Cepheids) have a slightly different period-luminosity relationship than the Population II star cepheids (called Type II Cepheids or W Virginis stars). 3. Lower mass versions of Cepheids exist called RR Lyrae type variables, which change in br ...
... e) Population I star Cepheids (called Type I or classical Cepheids) have a slightly different period-luminosity relationship than the Population II star cepheids (called Type II Cepheids or W Virginis stars). 3. Lower mass versions of Cepheids exist called RR Lyrae type variables, which change in br ...
Dorn_projectF08 - Bowling Green State University
... changing appearance of its surface. The Moon orbits at roughly 380,000 km. distance with a diameter of 3475 km., compared to Earth it is 27% smaller with a reflection magnitude at opposition of -12.7. The best views through a telescope are between the crescent and quarter phases when angled light fr ...
... changing appearance of its surface. The Moon orbits at roughly 380,000 km. distance with a diameter of 3475 km., compared to Earth it is 27% smaller with a reflection magnitude at opposition of -12.7. The best views through a telescope are between the crescent and quarter phases when angled light fr ...
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.