Curiosities of the Sky
... on the imagination and suggest that the stars had been thrown into a vast eddy, or system of eddies, whose vortices appear as dark holes. Only a maelstrom-like motion could keep such a funnel open, for without regard to the impulse derived from the projectile, the proper motions of the stars themse ...
... on the imagination and suggest that the stars had been thrown into a vast eddy, or system of eddies, whose vortices appear as dark holes. Only a maelstrom-like motion could keep such a funnel open, for without regard to the impulse derived from the projectile, the proper motions of the stars themse ...
VLT/FORS Surveys of Wolf-Rayet Stars beyond the
... suggestions that early-type WC stars are richer in carbon than late-type WC stars. However, quantitative analysis of WC subtypes allowing for radiative transfer effects do not support a subtype dependence of elemental abundances in WC stars. In contrast, Crowther et al. (2002) proposed that late spe ...
... suggestions that early-type WC stars are richer in carbon than late-type WC stars. However, quantitative analysis of WC subtypes allowing for radiative transfer effects do not support a subtype dependence of elemental abundances in WC stars. In contrast, Crowther et al. (2002) proposed that late spe ...
MillionaireGame__Science_Review
... TRUE! Some matter remains after the explosion, and the shrunken core can become either a neutron star or a black hole. ...
... TRUE! Some matter remains after the explosion, and the shrunken core can become either a neutron star or a black hole. ...
Chapter 30: Stars
... In the core of the Sun, helium is a product of the process in which hydrogen nuclei fuse. The mass of the helium nucleus is less than the combined mass of the hydrogen nuclei, which means that mass is being lost during the process somehow. Albert Einstein’s theory of special relativity showed that m ...
... In the core of the Sun, helium is a product of the process in which hydrogen nuclei fuse. The mass of the helium nucleus is less than the combined mass of the hydrogen nuclei, which means that mass is being lost during the process somehow. Albert Einstein’s theory of special relativity showed that m ...
OBJXlab-JCU_Alt
... Since our unknown object in this case has the spectrum of a galaxy, we identify it as such, and can then proceed to determine some of its properties from the spectrum, notably its redshift, its speed of recession from us, and its distance. If the spectrum of the object had been that of a star, we wo ...
... Since our unknown object in this case has the spectrum of a galaxy, we identify it as such, and can then proceed to determine some of its properties from the spectrum, notably its redshift, its speed of recession from us, and its distance. If the spectrum of the object had been that of a star, we wo ...
The Milky Way
... Additional component of very hot, low-density gas in the ISM: T ~ 1 million K n ~ 0.001 particles/cm3 ...
... Additional component of very hot, low-density gas in the ISM: T ~ 1 million K n ~ 0.001 particles/cm3 ...
Life as a Low
... pressure goes away because electrons combine with protons, making neutrons and neutrinos. Neutrons collapse to the center, forming a neutron star. ...
... pressure goes away because electrons combine with protons, making neutrons and neutrinos. Neutrons collapse to the center, forming a neutron star. ...
PSC100 Summary Chapters 1 to Chapter 9
... Although the Sun, the Moon, and the planets appear brighter and usually capture our initial attention, it is the patterns of stars that make up the bulk of the view that we have when we observe the night sky. It is no wonder that some of the oldest knowledge and records of scientific observation are ...
... Although the Sun, the Moon, and the planets appear brighter and usually capture our initial attention, it is the patterns of stars that make up the bulk of the view that we have when we observe the night sky. It is no wonder that some of the oldest knowledge and records of scientific observation are ...
click here - CAPSTONE 2011
... 1. The average period of a certain asteroid is about 76 years. If it is in a circular orbit, how far is it from the Sun and where does that place it with respect to the orbits of the major planets. (Find the values for the planets in the appendices to the text book.) 2. What is the angular diameter ...
... 1. The average period of a certain asteroid is about 76 years. If it is in a circular orbit, how far is it from the Sun and where does that place it with respect to the orbits of the major planets. (Find the values for the planets in the appendices to the text book.) 2. What is the angular diameter ...
Here - Astrophysics Research Institute
... Barred spiral galaxy, NGC 55: 00h 14m 53.6s , -39º 11´ 48´´ Ring Nebula, M57: 18h 53m 35.1s , +33º 01´ 45´´ Targets with an angular distance that is > 90º from the latitude of the observer can’t be reached ...
... Barred spiral galaxy, NGC 55: 00h 14m 53.6s , -39º 11´ 48´´ Ring Nebula, M57: 18h 53m 35.1s , +33º 01´ 45´´ Targets with an angular distance that is > 90º from the latitude of the observer can’t be reached ...
Upcoming Events
... light from galaxies originates from nebulae like this one. But its great luminosity and relative proximity makes it easy to overlook the fact that there are a slew of much closer star-forming regions than the Orion Nebula; they're just much, much fainter. If you get a collapsing molecular cloud many ...
... light from galaxies originates from nebulae like this one. But its great luminosity and relative proximity makes it easy to overlook the fact that there are a slew of much closer star-forming regions than the Orion Nebula; they're just much, much fainter. If you get a collapsing molecular cloud many ...
A billion pixels, a billion stars
... all sources that are bright enough. However, some sources can suddenly change dramatically in brightness, putting them over the threshold at which they become “visible” to Gaia. These transient and variable sources are the subject of a special data analysis procedure, known as the Gaia photometric s ...
... all sources that are bright enough. However, some sources can suddenly change dramatically in brightness, putting them over the threshold at which they become “visible” to Gaia. These transient and variable sources are the subject of a special data analysis procedure, known as the Gaia photometric s ...
Stellar Census
... Objects with masses between 1/100 and 1/12 that of the Sun are called brown dwarfs They may produce energy for a brief time by nuclear reactions, but do not become hot enough to fuse protons They are intermediate in mass between stars and planets ...
... Objects with masses between 1/100 and 1/12 that of the Sun are called brown dwarfs They may produce energy for a brief time by nuclear reactions, but do not become hot enough to fuse protons They are intermediate in mass between stars and planets ...
Astrobiology: The Search for Extraterrestrial Life
... COROT and Kepler missions. Another disadvantage of this method is that it produces a fairly high number of false detections and so typically any exoplanet detected using the transit method requires additional confirmation, usually from the radial-velocity method. The main advantage of using the tran ...
... COROT and Kepler missions. Another disadvantage of this method is that it produces a fairly high number of false detections and so typically any exoplanet detected using the transit method requires additional confirmation, usually from the radial-velocity method. The main advantage of using the tran ...
What makes stars tick?
... ook up at the night sky from a dark site, and you’ll see tens of thousands of burning orbs of gas. Just one of those twinkling dots we call stars could be a behemoth with a mass 80 times that of our own Sun. At it’s core sits a cauldron of nuclear reactions that power the star, allowing us to see it ...
... ook up at the night sky from a dark site, and you’ll see tens of thousands of burning orbs of gas. Just one of those twinkling dots we call stars could be a behemoth with a mass 80 times that of our own Sun. At it’s core sits a cauldron of nuclear reactions that power the star, allowing us to see it ...
Constellation Catalog
... (the eagle carried Zeus’ thunderbolts that helped defeat the Titans, Zeus kept the eagle after his victory) In Greek mythology, the eagle was sent to find the most beautiful youth In Indian tradition the three stars that create the straight tail are admired as the footprints of the god Vishnu ...
... (the eagle carried Zeus’ thunderbolts that helped defeat the Titans, Zeus kept the eagle after his victory) In Greek mythology, the eagle was sent to find the most beautiful youth In Indian tradition the three stars that create the straight tail are admired as the footprints of the god Vishnu ...
Second Semester Study Guide
... A. Past volcanic activity covering the surface of the planet with red lava. B. When Mars' had flowing water, it also has red algae, which stained the surface rocks. C. The atmosphere blocking out blue light, only allowing red light to reflect off of the surface. D. The iron minerals in the surface r ...
... A. Past volcanic activity covering the surface of the planet with red lava. B. When Mars' had flowing water, it also has red algae, which stained the surface rocks. C. The atmosphere blocking out blue light, only allowing red light to reflect off of the surface. D. The iron minerals in the surface r ...
Goal: To understand clusters of stars
... old. • And the cluster is moving by us at 46 km/s. • 46 km/s = 1 light year per 6000 years ...
... old. • And the cluster is moving by us at 46 km/s. • 46 km/s = 1 light year per 6000 years ...
Goal: To understand clusters of stars
... old. • And the cluster is moving by us at 46 km/s. • 46 km/s = 1 light year per 6000 years ...
... old. • And the cluster is moving by us at 46 km/s. • 46 km/s = 1 light year per 6000 years ...
Cygnus (constellation)
Cygnus /ˈsɪɡnəs/ is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. The swan is one of the most recognizable constellations of the northern summer and autumn, it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.Cygnus contains Deneb, one of the brightest stars in the night sky and one corner of the Summer Triangle, as well as some notable X-ray sources and the giant stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a black hole. Many star systems in Cygnus have known planets as a result of the Kepler Mission observing one patch of the sky, the patch is the area around Cygnus. In addition, most of the eastern part of Cygnus is dominated by the Hercules–Corona Borealis Great Wall, a giant galaxy filament that is the largest known structure in the observable universe; covering most of the northern sky.