printer-friendly version of benchmark
... (From http://www.angelfire.com/sc2/Trunko/starsh1.JPG) ...
... (From http://www.angelfire.com/sc2/Trunko/starsh1.JPG) ...
May 2017 Astronomy Calendar by Dave Mitsky
... to magnitude -2.1 this month. The gas giant is located three degrees southeast of the thirdmagnitude star Gamma Virginis and sets around 3:00 a.m. as June begins. It ends retrograde (westward) motion on June 9th. Double Galilean satellite shadow transits take place on June 2nd, June 4th, June 5th, J ...
... to magnitude -2.1 this month. The gas giant is located three degrees southeast of the thirdmagnitude star Gamma Virginis and sets around 3:00 a.m. as June begins. It ends retrograde (westward) motion on June 9th. Double Galilean satellite shadow transits take place on June 2nd, June 4th, June 5th, J ...
shirley - Yancy L. Shirley`s Webpage
... UCHII Regions & Hot Cores UCHII Regions and Hot Cores observed in some highmass regions such as W49A VLA 7mm Cont. ...
... UCHII Regions & Hot Cores UCHII Regions and Hot Cores observed in some highmass regions such as W49A VLA 7mm Cont. ...
star - Cloudfront.net
... the region of space around them. 2. Although the stars that make up a pattern appear to be close together, they are not all the same distance from Earth. ...
... the region of space around them. 2. Although the stars that make up a pattern appear to be close together, they are not all the same distance from Earth. ...
– 1 – 1. Historical Notes for Ay 123 1.1.
... Self gravitating sphere (or almost sphere) of gas with a finite definable radius, not easily deformed, not like a cloud in the Earth’s atmosphere Nuclear reactions occur at least to the point where 3 He is produced. radiates energy into the surrounding medium. Jupiter also does this, some internal h ...
... Self gravitating sphere (or almost sphere) of gas with a finite definable radius, not easily deformed, not like a cloud in the Earth’s atmosphere Nuclear reactions occur at least to the point where 3 He is produced. radiates energy into the surrounding medium. Jupiter also does this, some internal h ...
Measuring Astronomical Distances
... Cepheid Variables - http://hyperphysics.phy-astr.gsu.edu/hbase/astro/cepheid.html ...
... Cepheid Variables - http://hyperphysics.phy-astr.gsu.edu/hbase/astro/cepheid.html ...
Cepheid Calibration
... was one of the most surprising and profound discoveries of the 20th century. In an odd twist, pursuing this discovery has astronomers pointing Hubble at some bright, nearby stars. As a class, Cepheid variables are the most useful stars in the sky. They are named for their archetype, δ Cephei, the fo ...
... was one of the most surprising and profound discoveries of the 20th century. In an odd twist, pursuing this discovery has astronomers pointing Hubble at some bright, nearby stars. As a class, Cepheid variables are the most useful stars in the sky. They are named for their archetype, δ Cephei, the fo ...
Sky Maps Teacher`s Guide - Northern Stars Planetarium
... beginning to rise in the east. He knew that there might already be animals drinking at the pond. Not wanting to scare anything away, he became very, very quiet. Shhhhh. And sure enough, when he got close to the clearing he could hear something up ahead. He could hear lots of ……GROWLING! When he peek ...
... beginning to rise in the east. He knew that there might already be animals drinking at the pond. Not wanting to scare anything away, he became very, very quiet. Shhhhh. And sure enough, when he got close to the clearing he could hear something up ahead. He could hear lots of ……GROWLING! When he peek ...
Chapter 2 Surveying the stars 2.1 Star magnitudes
... The brightness of a star in the night sky depends on the intensity of the star’s light at the Earth which is the light energy per second per unit surface area received from the star at normal incidence on a surface. The intensity of sunlight at the Earth’s surface is about 1400 W m−2. In comparison, ...
... The brightness of a star in the night sky depends on the intensity of the star’s light at the Earth which is the light energy per second per unit surface area received from the star at normal incidence on a surface. The intensity of sunlight at the Earth’s surface is about 1400 W m−2. In comparison, ...
File
... thousand to several million stars, characterized by old, cool, red stars (Population II stars)—located in the galaxy’s halo. Nebulae ...
... thousand to several million stars, characterized by old, cool, red stars (Population II stars)—located in the galaxy’s halo. Nebulae ...
The Earth and Man In the Universe
... attention of the thoughtful. This great circle divides the heavens into two hemispheres, making an angle of about 63 0 with the ecliptic, so that it does not pass very far from either the North or South pole. Its appearance is known to be the result of the massing together of millions of stars, the ...
... attention of the thoughtful. This great circle divides the heavens into two hemispheres, making an angle of about 63 0 with the ecliptic, so that it does not pass very far from either the North or South pole. Its appearance is known to be the result of the massing together of millions of stars, the ...
ASTRO-114--Lecture 37-
... background behind an object you’re looking at and so you can tell how far away an object is by how much parallax you see with it from one eye to the other. In other words, looking at your thumb, shifting from one eye to the other, you see a shift. You can then tell your thumb is fairly close. Now, l ...
... background behind an object you’re looking at and so you can tell how far away an object is by how much parallax you see with it from one eye to the other. In other words, looking at your thumb, shifting from one eye to the other, you see a shift. You can then tell your thumb is fairly close. Now, l ...
How to Directly Image a Habitable Planet Around Alpha Centauri
... The search for another Earth-like planet (exo-Earth) and extraterrestrial life is one of the most fundamental, grand, and noble pursuits not just in astronomy, but in all of science. The discovery of a true exo-Earth is likely to be hailed as a major milestone of our civilization, on par with the la ...
... The search for another Earth-like planet (exo-Earth) and extraterrestrial life is one of the most fundamental, grand, and noble pursuits not just in astronomy, but in all of science. The discovery of a true exo-Earth is likely to be hailed as a major milestone of our civilization, on par with the la ...
1. The catalogue structure
... We have partially processed this enormous body of material. First of all, it is very useful to indicate the location of the constellations mentioned in Ptolemy’s star catalogue geometrically. Let us use a modern map that specifies constellation boundaries for this end. In fig. 2.1. these boundaries ...
... We have partially processed this enormous body of material. First of all, it is very useful to indicate the location of the constellations mentioned in Ptolemy’s star catalogue geometrically. Let us use a modern map that specifies constellation boundaries for this end. In fig. 2.1. these boundaries ...
Beers_First_Stars_NIC_School
... Super-Massive Stars W. Aoki, N. Tominaga, T. C. Beers, S. Honda, Y. S. Lee Abstract: Numerical simulations of structure formation in the early Universe predict the formation of some fraction of stars with masses several hundred times the solar mass. No clear evidence of supernovae from such supermas ...
... Super-Massive Stars W. Aoki, N. Tominaga, T. C. Beers, S. Honda, Y. S. Lee Abstract: Numerical simulations of structure formation in the early Universe predict the formation of some fraction of stars with masses several hundred times the solar mass. No clear evidence of supernovae from such supermas ...
Measuring the Stars Section 29.2
... Luminosity is measured in units of energy emitted per second, or watts. The Sun’s luminosity is about 3.85 × 1026 W. The values for other stars vary widely, from about 0.0001 to more than 1 million times the Sun’s luminosity. No other stellar property varies as much. ...
... Luminosity is measured in units of energy emitted per second, or watts. The Sun’s luminosity is about 3.85 × 1026 W. The values for other stars vary widely, from about 0.0001 to more than 1 million times the Sun’s luminosity. No other stellar property varies as much. ...
Pop Quiz Question
... The apparent magntiude of the Sun is A. Close to 5 as it is average in luminosity B. Close to -27 as it is the brightest object in the sky C. Close to -5 as it is average in luminosity D. Close to 27 as it is the brightest object in the sky ...
... The apparent magntiude of the Sun is A. Close to 5 as it is average in luminosity B. Close to -27 as it is the brightest object in the sky C. Close to -5 as it is average in luminosity D. Close to 27 as it is the brightest object in the sky ...
Corona Australis
Corona Australis /kɵˈroʊnə ɒˈstreɪlɨs/ or Corona Austrina /kɵˈroʊnə ɒˈstraɪnə/ is a constellation in the Southern Celestial Hemisphere. Its Latin name means ""southern crown"", and it is the southern counterpart of Corona Borealis, the northern crown. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The Ancient Greeks saw Corona Australis as a wreath rather than a crown and associated it with Sagittarius or Centaurus. Other cultures have likened the pattern to a turtle, ostrich nest, a tent, or even a hut belonging to a rock hyrax.Although fainter than its namesake, the oval- or horseshoe-shaped pattern of its brighter stars renders it distinctive. Alpha and Beta Coronae Australis are the two brightest stars with an apparent magnitude of around 4.1. Epsilon Coronae Australis is the brightest example of a W Ursae Majoris variable in the southern sky. Lying alongside the Milky Way, Corona Australis contains one of the closest star-forming regions to our Solar System—a dusty dark nebula known as the Corona Australis Molecular Cloud, lying about 430 light years away. Within it are stars at the earliest stages of their lifespan. The variable stars R and TY Coronae Australis light up parts of the nebula, which varies in brightness accordingly.