Logarithms and Earthquake Magnitude
... If the amplitude at 100 km is less than 4.8 x 10-7 then (A / Azero) will be less than one, which yields a magnitude less than zero because the log10 of a number less than one will be negative. In practice earthquakes this small, although quite numerous, are usually too small to be recorded and locat ...
... If the amplitude at 100 km is less than 4.8 x 10-7 then (A / Azero) will be less than one, which yields a magnitude less than zero because the log10 of a number less than one will be negative. In practice earthquakes this small, although quite numerous, are usually too small to be recorded and locat ...
a to z of astronomy
... DARK CLOUD A relatively dense cloud of interstellar material containing dust particles. The dust particles absorb light from the more distant stars etc, so that the region appears dark compared with its surroundings. The clouds are often of low temperature and contain many molecules. DARK MATTER Mat ...
... DARK CLOUD A relatively dense cloud of interstellar material containing dust particles. The dust particles absorb light from the more distant stars etc, so that the region appears dark compared with its surroundings. The clouds are often of low temperature and contain many molecules. DARK MATTER Mat ...
Exploring The Universe
... bound together by gravity • Because stars age at different rates, a galaxy may contain many types of stars. ...
... bound together by gravity • Because stars age at different rates, a galaxy may contain many types of stars. ...
File - Mr. Catt`s Class
... masses is the amount of time they spend as protostars and main sequence stars. 2. After this point, the star’s mass determines which of several different paths its life will take. 3. Stars can be grouped by mass as – very low mass (< 0.4 M), – moderately low mass (0.4–4 M), – moderately massive (4 ...
... masses is the amount of time they spend as protostars and main sequence stars. 2. After this point, the star’s mass determines which of several different paths its life will take. 3. Stars can be grouped by mass as – very low mass (< 0.4 M), – moderately low mass (0.4–4 M), – moderately massive (4 ...
FREE Sample Here
... One of the things that many of us who teach general education science courses believe we do is to help students learn to critically observe pictures and learn to read graphs and charts. Yet, few of us test this skill. Several of the exam questions in the test bank make use of pictures, tables, and g ...
... One of the things that many of us who teach general education science courses believe we do is to help students learn to critically observe pictures and learn to read graphs and charts. Yet, few of us test this skill. Several of the exam questions in the test bank make use of pictures, tables, and g ...
Constellations activities (PDF 185KB)
... Due to the Earth’s orbit around the Sun, the constellations seen in the night sky change throughout the year. The constellations Orion and Scorpius are located at opposite sides of the Celestial Sphere (the imaginary sphere of stars that surrounds our Solar System). So as Orion sets in the west, Sco ...
... Due to the Earth’s orbit around the Sun, the constellations seen in the night sky change throughout the year. The constellations Orion and Scorpius are located at opposite sides of the Celestial Sphere (the imaginary sphere of stars that surrounds our Solar System). So as Orion sets in the west, Sco ...
Talk
... form a white dwarf with ~10% its current luminosity, or 0.1 LŸ. After 5 Gyr as a white dwarf, the Sun’s luminosity will be ~10-4 LŸ and dropping… ...
... form a white dwarf with ~10% its current luminosity, or 0.1 LŸ. After 5 Gyr as a white dwarf, the Sun’s luminosity will be ~10-4 LŸ and dropping… ...
MS Word version
... The following sequence of directions are steps an instructor might choose to follow in demonstrating the Eclipsing Binary Simulator in a classroom situation. We provide these suggestions with appropriate questions (shown in bold italics) to pose to the class as an aid in promoting interactivity. We ...
... The following sequence of directions are steps an instructor might choose to follow in demonstrating the Eclipsing Binary Simulator in a classroom situation. We provide these suggestions with appropriate questions (shown in bold italics) to pose to the class as an aid in promoting interactivity. We ...
Constellation Detection
... Jinzhi Wang: • Template database study and implementation • Constellation background research and algorithm ...
... Jinzhi Wang: • Template database study and implementation • Constellation background research and algorithm ...
chapter 2 - Test Bank 1
... One of the things that many of us who teach general education science courses believe we do is to help students learn to critically observe pictures and learn to read graphs and charts. Yet, few of us test this skill. Several of the exam questions in the test bank make use of pictures, tables, and ...
... One of the things that many of us who teach general education science courses believe we do is to help students learn to critically observe pictures and learn to read graphs and charts. Yet, few of us test this skill. Several of the exam questions in the test bank make use of pictures, tables, and ...
presentation source
... What Happened around 1950? HR Diagram comes into focus • Globular cluster stars clearly very old (>few Gyr) • T Tauri and other “pre-main-sequence”stars clearly very young (few Myr) • Real admitted need for star formation ...
... What Happened around 1950? HR Diagram comes into focus • Globular cluster stars clearly very old (>few Gyr) • T Tauri and other “pre-main-sequence”stars clearly very young (few Myr) • Real admitted need for star formation ...
Measuring The Parallax of Barnard's Star
... Subject headings: Parallax, Barnard’s Star, Parsec, Astronomical Unit Barnard’s Star is one of the closest stars to us. It is also the star that has the fastest apparent motion across the sky moving about 11 arcseconds per year. With a right ascension of 17h 53m 26s, it reaches opposition on the nig ...
... Subject headings: Parallax, Barnard’s Star, Parsec, Astronomical Unit Barnard’s Star is one of the closest stars to us. It is also the star that has the fastest apparent motion across the sky moving about 11 arcseconds per year. With a right ascension of 17h 53m 26s, it reaches opposition on the nig ...
Cassiopeia (constellation)
Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today. It is easily recognizable due to its distinctive 'M' shape when in upper culmination but in higher northern locations when near lower culminations in spring and summer it has a 'W' shape, formed by five bright stars. It is bordered by Andromeda to the south, Perseus to the southeast, and Cepheus to the north. It is opposite the Big Dipper.In northern locations above 34ºN latitude it is visible year-round and in the (sub)tropics it can be seen at its clearest from September to early November in its characteristic 'M' shape. Even in low southern latitudes below 25ºS is can be seen low in the North.