![What is a Scientist? - Cockeysville Middle School](http://s1.studyres.com/store/data/008079004_1-031afaab0d33ee00842be40d2a2bba2f-300x300.png)
What is a Scientist? - Cockeysville Middle School
... Stars are giant spheres of glowing gases. A star is powered by nuclear fusion. This is a process whereby hydrogen atoms are fused together to create helium atoms. In the process a tremendous amount of energy is given off in the form of electromagnetic waves and heat. There are billions of stars in a ...
... Stars are giant spheres of glowing gases. A star is powered by nuclear fusion. This is a process whereby hydrogen atoms are fused together to create helium atoms. In the process a tremendous amount of energy is given off in the form of electromagnetic waves and heat. There are billions of stars in a ...
Stars - Stallion Science
... protons to form • Hydrogen nuclei started to form but it was still too hot for atoms to be stable • About 380,000 years after the big bang is when electrons could combine with atomic nuclei to form atoms • The first stars were born about 400 million years after the ...
... protons to form • Hydrogen nuclei started to form but it was still too hot for atoms to be stable • About 380,000 years after the big bang is when electrons could combine with atomic nuclei to form atoms • The first stars were born about 400 million years after the ...
PDF Version
... brightness that we can see ourselves, is equal to the intrinsic brightness divided by the square of the distance from us to the star. Astronomers used Cepheid variables in a nearby galaxy, which are all about the same distance from us, to find the correlation between the period and the intrinsic bri ...
... brightness that we can see ourselves, is equal to the intrinsic brightness divided by the square of the distance from us to the star. Astronomers used Cepheid variables in a nearby galaxy, which are all about the same distance from us, to find the correlation between the period and the intrinsic bri ...
oct81
... At the rate that the Sun is emitting energy, the Sun must have been much hotter just a few hundred years earlier, making life on Earth impossible. The Sun must have an energy source; a way of generating its own heat. ...
... At the rate that the Sun is emitting energy, the Sun must have been much hotter just a few hundred years earlier, making life on Earth impossible. The Sun must have an energy source; a way of generating its own heat. ...
Origin of Ocean
... Milky Way Galaxy Milky Way Galaxy is 100 million light in diameter Our galaxy contains roughly 400 billion stars Sun is a very typical star located in one of the arms of the Milky Way Galaxy Other planetary systems have been found in our galaxy ...
... Milky Way Galaxy Milky Way Galaxy is 100 million light in diameter Our galaxy contains roughly 400 billion stars Sun is a very typical star located in one of the arms of the Milky Way Galaxy Other planetary systems have been found in our galaxy ...
Origins of Earth
... Milky Way Galaxy Milky Way Galaxy is 100 million light in diameter Our galaxy contains roughly 400 billion stars Sun is a very typical star located in one of the arms of the Milky Way Galaxy Other planetary systems have been found in our galaxy ...
... Milky Way Galaxy Milky Way Galaxy is 100 million light in diameter Our galaxy contains roughly 400 billion stars Sun is a very typical star located in one of the arms of the Milky Way Galaxy Other planetary systems have been found in our galaxy ...
File - Earth Science with Mr. Lanik
... the radiative zone, and the the convective zone, then there is the visible surface known as the photosphere, the chromosphere, and finally the outermost layer, the corona. The energy produced through fusion in the Sun's core powers the Sun and produces all of the heat and light that we receive here ...
... the radiative zone, and the the convective zone, then there is the visible surface known as the photosphere, the chromosphere, and finally the outermost layer, the corona. The energy produced through fusion in the Sun's core powers the Sun and produces all of the heat and light that we receive here ...
Super Giant
... Explain why the moon revolves around the Earth instead of the Sun. Even though the moon is larger than Pluto, which DOES revolve around the Sun, The moon revolves around the Earth because it is CLOSER to the Earth. The two factors that determine the force of gravity are mass and distance. What relat ...
... Explain why the moon revolves around the Earth instead of the Sun. Even though the moon is larger than Pluto, which DOES revolve around the Sun, The moon revolves around the Earth because it is CLOSER to the Earth. The two factors that determine the force of gravity are mass and distance. What relat ...
Astronomy Review revised Key
... 24. Describe the characteristics of our sun. yellow, 5000-6000 degrees C in temperature, average in brightness, main sequence, average star. ...
... 24. Describe the characteristics of our sun. yellow, 5000-6000 degrees C in temperature, average in brightness, main sequence, average star. ...
Document
... Globular cluster – tight groups of hundreds of thousands of very old stars Open cluster - contain less than a few hundred members, and are often very young - may eventually become disrupted over time and no longer gravitational bound – move in same direction in space – referred to as stellar ass ...
... Globular cluster – tight groups of hundreds of thousands of very old stars Open cluster - contain less than a few hundred members, and are often very young - may eventually become disrupted over time and no longer gravitational bound – move in same direction in space – referred to as stellar ass ...
the interstellar medium - Howard University Physics and Astronomy
... • Hydrogen constitutes about 90% of all the atoms in the Sun and in newly forming stars. • Helium is the next most abundant (about 9%); all heaver elements constitute about 1% (by number of atoms). • The Sun’s original supply of hydrogen is sufficient to supply its energy output for 10 billion years ...
... • Hydrogen constitutes about 90% of all the atoms in the Sun and in newly forming stars. • Helium is the next most abundant (about 9%); all heaver elements constitute about 1% (by number of atoms). • The Sun’s original supply of hydrogen is sufficient to supply its energy output for 10 billion years ...
five minute episode script
... DISTINCTIVE BELT OF THREE STARS. IF YOU LOOK A LITTLE CLOSER YOU'LL SEE STARS OF DIFFERENT BRIGHTNESS AND COLOR. DEAN: STAR COLOR IS AN INDICATION OF ITS TEMPERATURE - BLUE STARS BEING THE HOTTEST AND RED STARS BEING THE COLDEST. YOU CAN REALLY SEE THE COLORS OF THE BRIGHTEST STARS LIKE THOSE IN ORI ...
... DISTINCTIVE BELT OF THREE STARS. IF YOU LOOK A LITTLE CLOSER YOU'LL SEE STARS OF DIFFERENT BRIGHTNESS AND COLOR. DEAN: STAR COLOR IS AN INDICATION OF ITS TEMPERATURE - BLUE STARS BEING THE HOTTEST AND RED STARS BEING THE COLDEST. YOU CAN REALLY SEE THE COLORS OF THE BRIGHTEST STARS LIKE THOSE IN ORI ...
Instrumentation for Cosmology
... The spiral arms are an illusion. They trace the passage of a ‘sound wave’ through the disk of the galaxy ...
... The spiral arms are an illusion. They trace the passage of a ‘sound wave’ through the disk of the galaxy ...
Quick facts #2: The two
... The most straightforward orbit calculations occur when the central body is much more massive than the orbiting body, as is the case for the orbits of man-made satellites around the Earth. We assumed that this is also the case for planetary orbits about the Sun – a good approximation, especially for ...
... The most straightforward orbit calculations occur when the central body is much more massive than the orbiting body, as is the case for the orbits of man-made satellites around the Earth. We assumed that this is also the case for planetary orbits about the Sun – a good approximation, especially for ...
EM review
... Brightness measured in terms of radiated flux, F. This is the total amount of light energy emitted per surface area. Assuming that the star is spherical, F=L/4πr2, where L is the star’s luminosity. Also defined is the absolute magnitude of a star, M. This is the apparent magnitude a star would hav ...
... Brightness measured in terms of radiated flux, F. This is the total amount of light energy emitted per surface area. Assuming that the star is spherical, F=L/4πr2, where L is the star’s luminosity. Also defined is the absolute magnitude of a star, M. This is the apparent magnitude a star would hav ...
PDF version (two pages, including the full text)
... it is losing mass fast enough to create a visible nebula or gas cloud around it, lit by Antares hot companion star. In the next few million years or so, Antares may explode as a supernova -so keep your eyes on the Scorpion if you're the patient sort. Just NE of Scorpio in the Milky Way are the stars ...
... it is losing mass fast enough to create a visible nebula or gas cloud around it, lit by Antares hot companion star. In the next few million years or so, Antares may explode as a supernova -so keep your eyes on the Scorpion if you're the patient sort. Just NE of Scorpio in the Milky Way are the stars ...
LAB #6 - GEOCITIES.ws
... that magnitudes are a “backwards” scale). If this is the case, the (B-V) index is a POSITIVE number, and it indicates a relatively cool star. On the other hand, if the B magnitude is a small number compared the V magnitude, the star is putting out a high percentage of blue light and is thus relative ...
... that magnitudes are a “backwards” scale). If this is the case, the (B-V) index is a POSITIVE number, and it indicates a relatively cool star. On the other hand, if the B magnitude is a small number compared the V magnitude, the star is putting out a high percentage of blue light and is thus relative ...
Stellar nuclear reactions 3
... don’t experience the Strong nuclear force (which acts on the property of “colour” which only quarks possess). They can only experience the Weak nuclear force, which, because it is several orders of magnitude weaker than the others, means that neutrinos can travel through the Sun (and Earth) without ...
... don’t experience the Strong nuclear force (which acts on the property of “colour” which only quarks possess). They can only experience the Weak nuclear force, which, because it is several orders of magnitude weaker than the others, means that neutrinos can travel through the Sun (and Earth) without ...
Extra-Solar Planets
... • Method 1 – Use the fact that the Sun and Planet corotate around their common centre of gravity. – So the star will be moving around a small ellipse whose size depends on the mass and distance of the planet. – Precise measurements of the doppler shift in the spectral lines of the star can show up t ...
... • Method 1 – Use the fact that the Sun and Planet corotate around their common centre of gravity. – So the star will be moving around a small ellipse whose size depends on the mass and distance of the planet. – Precise measurements of the doppler shift in the spectral lines of the star can show up t ...
ppt - Astronomy & Physics
... When light with a continuous spectrum passes through cool gas, dark lines appear in the continuous spectrum. Such “cool” gas exists in outer layers of stars, absorbing light at certain wavelengths from continuous spectrum coming from below. ...
... When light with a continuous spectrum passes through cool gas, dark lines appear in the continuous spectrum. Such “cool” gas exists in outer layers of stars, absorbing light at certain wavelengths from continuous spectrum coming from below. ...
IK Pegasi
![](https://commons.wikimedia.org/wiki/Special:FilePath/Location_of_IK_Pegasi.png?width=300)
IK Pegasi (or HR 8210) is a binary star system in the constellation Pegasus. It is just luminous enough to be seen with the unaided eye, at a distance of about 150 light years from the Solar System.The primary (IK Pegasi A) is an A-type main-sequence star that displays minor pulsations in luminosity. It is categorized as a Delta Scuti variable star and it has a periodic cycle of luminosity variation that repeats itself about 22.9 times per day. Its companion (IK Pegasi B) is a massive white dwarf—a star that has evolved past the main sequence and is no longer generating energy through nuclear fusion. They orbit each other every 21.7 days with an average separation of about 31 million kilometres, or 19 million miles, or 0.21 astronomical units (AU). This is smaller than the orbit of Mercury around the Sun.IK Pegasi B is the nearest known supernova progenitor candidate. When the primary begins to evolve into a red giant, it is expected to grow to a radius where the white dwarf can accrete matter from the expanded gaseous envelope. When the white dwarf approaches the Chandrasekhar limit of 1.44 solar masses (M☉), it may explode as a Type Ia supernova.