Astrology
... Roots of Astrology • 6000-4000 BCE: Sumerians seek to bring order to their universe through observation • Astrology: attempts to correlate celestial and terrestrial events • Based on astronomical measurements • Drove many astronomical observations • Later applies to human temperment and morality • ...
... Roots of Astrology • 6000-4000 BCE: Sumerians seek to bring order to their universe through observation • Astrology: attempts to correlate celestial and terrestrial events • Based on astronomical measurements • Drove many astronomical observations • Later applies to human temperment and morality • ...
After School Guide to Ology Astronomy
... Earth – Our dynamic home planet, Earth has conditions — like liquid water, an atmosphere, and moderate temperatures — that permit a great variety of life forms to exist. energy – Any attribute of matter or electromagnetic radiation that can be converted into motion. Energy makes things happen. It co ...
... Earth – Our dynamic home planet, Earth has conditions — like liquid water, an atmosphere, and moderate temperatures — that permit a great variety of life forms to exist. energy – Any attribute of matter or electromagnetic radiation that can be converted into motion. Energy makes things happen. It co ...
4 Distances in Astronomy
... The parallax method is limited to determining distances for relatively nearby stars, because otherwise the parallax angle becomes too small to measure reliably. The best ground-based telescopes can achieve a resolution of about 0:500 , which can sometimes be reduced to about 0:0100 by averaging over ...
... The parallax method is limited to determining distances for relatively nearby stars, because otherwise the parallax angle becomes too small to measure reliably. The best ground-based telescopes can achieve a resolution of about 0:500 , which can sometimes be reduced to about 0:0100 by averaging over ...
Project 4: The HR diagram. Open clusters
... 4. Transform to the standard system. This will involve finding published values of V and B for some of the stars in your cluster and also a finding chart so that the stars with published values can be identified on your images. There is a great resource to help with this on the web: http://www.univi ...
... 4. Transform to the standard system. This will involve finding published values of V and B for some of the stars in your cluster and also a finding chart so that the stars with published values can be identified on your images. There is a great resource to help with this on the web: http://www.univi ...
13 The Family of Stars
... triangulation was done by Eratosthenes about 2300 years ago. He noticed that when the Sun was directly overhead in Syene, it was at an angle in Alexandria. By measuring the angle θ and the distance b between the cities he calculated the radius r = b/θ. ...
... triangulation was done by Eratosthenes about 2300 years ago. He noticed that when the Sun was directly overhead in Syene, it was at an angle in Alexandria. By measuring the angle θ and the distance b between the cities he calculated the radius r = b/θ. ...
Document
... stable part of their life cycle. White dwarfs are hot and dim and cannot be seen without a telescope. Red giants are cool and bright and some can be seen without a telescope. Can you locate blue giants on the H-R diagram? ...
... stable part of their life cycle. White dwarfs are hot and dim and cannot be seen without a telescope. Red giants are cool and bright and some can be seen without a telescope. Can you locate blue giants on the H-R diagram? ...
Gemini - www.BahaiStudies.net
... objects of note. The Eskimo Nebula and Medusa Nebula, Messier object M35, and Geminga are those that attract the most attention. The Eskimo and Medusa nebulae are both planetary nebulae, the one approximately 2,870 light years away and the other 1,500 light years distant. M35 is an open star cluster ...
... objects of note. The Eskimo Nebula and Medusa Nebula, Messier object M35, and Geminga are those that attract the most attention. The Eskimo and Medusa nebulae are both planetary nebulae, the one approximately 2,870 light years away and the other 1,500 light years distant. M35 is an open star cluster ...
Magnitudes lesson plan
... Apparent Magnitude refers to the apparent brightness of one star relative to another as seen with the unaided eye. Keep in mind this refers to the apparent brightness, not the actual brightness of a star. Today, Ptolemy’s original division of six magnitudes has been retained but the placement of sta ...
... Apparent Magnitude refers to the apparent brightness of one star relative to another as seen with the unaided eye. Keep in mind this refers to the apparent brightness, not the actual brightness of a star. Today, Ptolemy’s original division of six magnitudes has been retained but the placement of sta ...
Notes (PowerPoint)
... o Scientific arguments can be fierce • Issue about women and aggressive argument • Our heroes – the people who overthrew the established order • Instant success: prove someone else wrong ...
... o Scientific arguments can be fierce • Issue about women and aggressive argument • Our heroes – the people who overthrew the established order • Instant success: prove someone else wrong ...
Diffuse Ultraviolet Emission in Galaxies
... of UV radiation each star produces. We focused on the hottest, most massive stars, which are the only ones capable of producing large amounts of UV radiation. We divided these stars into two groups, using their traditional names: “O-type” stars, with initial masses >20 Msun and lifespans < 5 Myr, a ...
... of UV radiation each star produces. We focused on the hottest, most massive stars, which are the only ones capable of producing large amounts of UV radiation. We divided these stars into two groups, using their traditional names: “O-type” stars, with initial masses >20 Msun and lifespans < 5 Myr, a ...
Stars: Intro & Classification Astronomy 1 — Elementary Astronomy LA Mission College
... We intentionally do not suggest that there is a simple mechanism for accomplishing this and we avoid the concept of filters. ...
... We intentionally do not suggest that there is a simple mechanism for accomplishing this and we avoid the concept of filters. ...
Guidestar: February, 2015 - Houston Astronomical Society
... http://www.fbac.org/club_meetings.htm. Novice meeting begins at 7:00 p.m., regular meeting begins at 8:00 p.m. Website: http://www.fbac.org North Houston Astronomy Club meets at 7:30 p.m. on the 4th Friday of each month in the Teaching Theatre of the Student Center at Kingwood College.Call 281-312-1 ...
... http://www.fbac.org/club_meetings.htm. Novice meeting begins at 7:00 p.m., regular meeting begins at 8:00 p.m. Website: http://www.fbac.org North Houston Astronomy Club meets at 7:30 p.m. on the 4th Friday of each month in the Teaching Theatre of the Student Center at Kingwood College.Call 281-312-1 ...
A Human-Powered Orrery - Astronomical Society of the Pacific
... In many of our outreach programs over the years, we modeled the motion of the Earth around the Sun and the seasonal constellations, but this did not involve a lot of audience participation. Then, in 2005 we saw an article and a poster about a Human Orrery constructed at the Armagh Observatory in Nor ...
... In many of our outreach programs over the years, we modeled the motion of the Earth around the Sun and the seasonal constellations, but this did not involve a lot of audience participation. Then, in 2005 we saw an article and a poster about a Human Orrery constructed at the Armagh Observatory in Nor ...
February 2013 - astronomy for beginners
... brightest stars are called Pollux (β) and Castor (α) and are known as the Gemini Twins. The twins originated in a Greek myth which told that they had one mother but two fathers. Castor was the mortal son of King Tyndareus but Pollux was the immortal son of the God Zeus who had disguised himself as C ...
... brightest stars are called Pollux (β) and Castor (α) and are known as the Gemini Twins. The twins originated in a Greek myth which told that they had one mother but two fathers. Castor was the mortal son of King Tyndareus but Pollux was the immortal son of the God Zeus who had disguised himself as C ...
Interstellar medium, birth and life of stars
... pulsating variables exhibiting a regular relationship between the period of pulsation and luminosity. Mass can be transferred from one star to another in close binary systems. When this occurs, the evolution of the two stars changes. ...
... pulsating variables exhibiting a regular relationship between the period of pulsation and luminosity. Mass can be transferred from one star to another in close binary systems. When this occurs, the evolution of the two stars changes. ...
colour
... • To obtain L we must know the star’s distance D and correct for: . absorption in the Earth’s atmosphere (standard methods) . absorption in interstellar space (negligible for nearby stars) • Measurements from the Hipparcos satellite (1989– 1993) have yielded parallaxes accurate to 0.002 arcsec for a ...
... • To obtain L we must know the star’s distance D and correct for: . absorption in the Earth’s atmosphere (standard methods) . absorption in interstellar space (negligible for nearby stars) • Measurements from the Hipparcos satellite (1989– 1993) have yielded parallaxes accurate to 0.002 arcsec for a ...
STELLAR STRUCTURE AND EVOLUTION
... • To obtain L we must know the star’s distance D and correct for: . absorption in the Earth’s atmosphere (standard methods) . absorption in interstellar space (negligible for nearby stars) • Measurements from the Hipparcos satellite (1989– 1993) have yielded parallaxes accurate to 0.002 arcsec for a ...
... • To obtain L we must know the star’s distance D and correct for: . absorption in the Earth’s atmosphere (standard methods) . absorption in interstellar space (negligible for nearby stars) • Measurements from the Hipparcos satellite (1989– 1993) have yielded parallaxes accurate to 0.002 arcsec for a ...
Chapter 15 Surveying the Stars
... • Any star that varies significantly in brightness with time is called a variable star • Some stars vary in brightness because they cannot achieve proper balance between power welling up from the core and power radiated from the surface • Such a star alternately expands and contracts, varying in bri ...
... • Any star that varies significantly in brightness with time is called a variable star • Some stars vary in brightness because they cannot achieve proper balance between power welling up from the core and power radiated from the surface • Such a star alternately expands and contracts, varying in bri ...
ASTRO-114--Lecture 37-
... So in the 1800s astronomers wanted to name stars all the way down to about 9 th magnitude. Now, that’s about 300,000 stars. That’s a lot of stars. And so you can’t really give them nice names like Rigel. You can’t use Greek letters. And even if you start using numbers, it’s just gonna be a big numbe ...
... So in the 1800s astronomers wanted to name stars all the way down to about 9 th magnitude. Now, that’s about 300,000 stars. That’s a lot of stars. And so you can’t really give them nice names like Rigel. You can’t use Greek letters. And even if you start using numbers, it’s just gonna be a big numbe ...
Chapter 13: Interstellar Matter and Star Formation
... 1. Herschel, the discoverer of Uranus, proposed that the dark patches we see in the sky are simply large spaces between the stars that allow us to see into the dark void beyond. 2. Stars are not all at the same distance from us. For us to be able to see through gaps between the stars, the gaps thus ...
... 1. Herschel, the discoverer of Uranus, proposed that the dark patches we see in the sky are simply large spaces between the stars that allow us to see into the dark void beyond. 2. Stars are not all at the same distance from us. For us to be able to see through gaps between the stars, the gaps thus ...
What we can measure
... really see them. This is possible for the nearer stars. We can actually see both stars individually and watch one orbit the other. These are called visual binaries. We need to be careful here, since some stars only appear to be close due to our perspective. These are called “optical doubles” and not ...
... really see them. This is possible for the nearer stars. We can actually see both stars individually and watch one orbit the other. These are called visual binaries. We need to be careful here, since some stars only appear to be close due to our perspective. These are called “optical doubles” and not ...
SEEING STARS! SEEING STARS!
... piece of black cardboard. Poke a hole through where the stars appear on the paper (to transfer the map to the black card). Using the chart above measure a length of straw for each of the stars. Stick the straws in the correct place on the chart using blu-tack. Make 7 little balls out of yellow plast ...
... piece of black cardboard. Poke a hole through where the stars appear on the paper (to transfer the map to the black card). Using the chart above measure a length of straw for each of the stars. Stick the straws in the correct place on the chart using blu-tack. Make 7 little balls out of yellow plast ...
Stellar Evolution: Evolution: Birth, Life, and Death of Stars
... Binary stars are pairs of stars that are close together due to gravity, and orbit around themselves. They can be visible directly (as in the image on the left), or detected by their spectra, or an eclipse between the stars. They are the most important tool to measure the masses of stars Multiple sta ...
... Binary stars are pairs of stars that are close together due to gravity, and orbit around themselves. They can be visible directly (as in the image on the left), or detected by their spectra, or an eclipse between the stars. They are the most important tool to measure the masses of stars Multiple sta ...
The Characteristics of Stars
... Stars are scattered across the Universe at different distances from Earth. The varying distances make it difficult to visually compare stars to determine which are emitting more light and which are emitting less. Although apparent magnitude values help us classify stars according to their observed b ...
... Stars are scattered across the Universe at different distances from Earth. The varying distances make it difficult to visually compare stars to determine which are emitting more light and which are emitting less. Although apparent magnitude values help us classify stars according to their observed b ...
Galaxies (and stars) in the far infrared: results from the AKARI All
... However, in the case of AKARI FIS ASS, we must rely only on four FIR bands (at longer wavelengths), and this cannot be a trivial application of IRAS methodology, since the physical processes behind emission in these bands are different. ...
... However, in the case of AKARI FIS ASS, we must rely only on four FIR bands (at longer wavelengths), and this cannot be a trivial application of IRAS methodology, since the physical processes behind emission in these bands are different. ...
Constellation
In modern astronomy, a constellation is a specific area of the celestial sphere as defined by the International Astronomical Union (IAU). These areas had their origins in Western-traditional asterisms from which the constellations take their names. There are 88 officially recognized constellations, covering the entire sky.Thus, any given point in a celestial coordinate system can unambiguously be assigned to a constellation. It is usual in astronomy to give the constellation in which a given object is found along with its coordinates in order to convey a rough idea in which part of the sky it is located. For example, saying the Horsehead Nebula is near Orion's Belt in the constellation Orion immediately locates it just south of the ecliptic and conveys that it is best observable in winter from the Northern Hemisphere.