Day-7
... Stellar Radii and Planetary Orbital Semi-Major Axis (A.U.) The Habitable Zone (HZ) in green is defined here (and often) as the distance from a star where liquid water is expected to exist on the planets surface (Kasting, Whitmire, and Reynolds 1993). ...
... Stellar Radii and Planetary Orbital Semi-Major Axis (A.U.) The Habitable Zone (HZ) in green is defined here (and often) as the distance from a star where liquid water is expected to exist on the planets surface (Kasting, Whitmire, and Reynolds 1993). ...
UCSD Students` Presentation on Star Formation
... Stages 4 & 5: Protostellar Evolution *The mass is now the size of Mercury’s orbit, and the temp. is a few thousand kelvins -We can now calculate the luminosity using the radius-luminosity-temperature relationship *H-R diagram shows the physical properties in stage 4 -The surface temp. and luminosit ...
... Stages 4 & 5: Protostellar Evolution *The mass is now the size of Mercury’s orbit, and the temp. is a few thousand kelvins -We can now calculate the luminosity using the radius-luminosity-temperature relationship *H-R diagram shows the physical properties in stage 4 -The surface temp. and luminosit ...
Fundamental Motions (PowerPoint)
... unchanging location, due North Some southern stars are never seen by us, while some Northern stars never go below the northern horizon (including those in the Big Dipper, for us in Kingston) Southern stars rise in the Southeast, and follow short paths across the sky. Northern stars rise in the North ...
... unchanging location, due North Some southern stars are never seen by us, while some Northern stars never go below the northern horizon (including those in the Big Dipper, for us in Kingston) Southern stars rise in the Southeast, and follow short paths across the sky. Northern stars rise in the North ...
PDF version (two pages, including the full text)
... Southern Cross and the Pointers (Alpha and Beta Centauri). Alpha Centauri is a triple system, with two sun like stars orbiting each other every 80 years and a dim red dwarf tagging along at a much larger distance. This star was discovered by Robert Innes at the Union Observatory in Johannesburg in 1 ...
... Southern Cross and the Pointers (Alpha and Beta Centauri). Alpha Centauri is a triple system, with two sun like stars orbiting each other every 80 years and a dim red dwarf tagging along at a much larger distance. This star was discovered by Robert Innes at the Union Observatory in Johannesburg in 1 ...
blue_giant
... A blue giant is a massive star that has exhausted the hydrogen fuel in its core and left the main sequence. Blue giants have a surface temperature of around 30,000 K Typically, giant stars have radii between 10 and 100 solar radii and luminosities between 10 and 1,000 times that of the sun. ...
... A blue giant is a massive star that has exhausted the hydrogen fuel in its core and left the main sequence. Blue giants have a surface temperature of around 30,000 K Typically, giant stars have radii between 10 and 100 solar radii and luminosities between 10 and 1,000 times that of the sun. ...
Lecture 7 Stars and Galaxies and Nebula, (Oh My!) Feb 18 2003
... They orbit in the disk of our galaxy and don't last very long, members escape the group over time. All about the same age and composition so it is likely that they formed around the same time. ...
... They orbit in the disk of our galaxy and don't last very long, members escape the group over time. All about the same age and composition so it is likely that they formed around the same time. ...
Astronomy
... c. They are 88 groups of stars and stars in each constellation are about the same distance from earth d. They are 88 well defined sky regions along the ecliptic. ...
... c. They are 88 groups of stars and stars in each constellation are about the same distance from earth d. They are 88 well defined sky regions along the ecliptic. ...
Unit Two Worksheet – Astronomy
... The spectra of most galaxies tested with spectroscopic equipment were shifted toward the ___ end of the visible spectrum. (A) red (B) blue (C) green (D) violet ...
... The spectra of most galaxies tested with spectroscopic equipment were shifted toward the ___ end of the visible spectrum. (A) red (B) blue (C) green (D) violet ...
changing constellations
... positions So, what is going on? The ause each day bec r yea the ing change dur n 2.5 million the Earth moves more tha the Sun (or und aro kilometres as it orbits stars The it). ...
... positions So, what is going on? The ause each day bec r yea the ing change dur n 2.5 million the Earth moves more tha the Sun (or und aro kilometres as it orbits stars The it). ...
Recap: High Mass Stars
... • The outer layers of the sun will expand, consuming the inner planets • Sun will become a Red Giant ...
... • The outer layers of the sun will expand, consuming the inner planets • Sun will become a Red Giant ...
Chapter19
... the cycle begins anew. AGB stars have thick, cool dust shells around them that absorb their visible light and re-emit it in the infrared. The gas in the planetary nebula was shed from the star while it was an AGB star. The star must be hot in order to produce ultraviolet radiation, which can ionize ...
... the cycle begins anew. AGB stars have thick, cool dust shells around them that absorb their visible light and re-emit it in the infrared. The gas in the planetary nebula was shed from the star while it was an AGB star. The star must be hot in order to produce ultraviolet radiation, which can ionize ...
Exoplanets - Mid-Pacific Institute
... methods and technologies Planets smaller than gas giants cannot be reliably detected ...
... methods and technologies Planets smaller than gas giants cannot be reliably detected ...
The Family of Stars
... The flux received from both stars is the same, but star B is 5 times more luminous than star A, so star B must be further away. The flux received from both stars is the same, but star B is 100 times more luminous than star A, so star B must be further away. Both stars are equally luminous, but the f ...
... The flux received from both stars is the same, but star B is 5 times more luminous than star A, so star B must be further away. The flux received from both stars is the same, but star B is 100 times more luminous than star A, so star B must be further away. Both stars are equally luminous, but the f ...
File
... 3. What happens when large stars die? Small stars? 4. What kind of gas if fuel for a star? 5. What happens to the size of a star as it begins to run out of fuel? 6. What happens to the size of a star as it dies? What happens to the temperature? ...
... 3. What happens when large stars die? Small stars? 4. What kind of gas if fuel for a star? 5. What happens to the size of a star as it begins to run out of fuel? 6. What happens to the size of a star as it dies? What happens to the temperature? ...
Properties of stars
... off 1000 times more light than Rigel!! SO..If Spica is giving off more light, why would it appear dimmer in the sky here at Earth? ...
... off 1000 times more light than Rigel!! SO..If Spica is giving off more light, why would it appear dimmer in the sky here at Earth? ...
Summary of Double Star Discoveries and JDSO Submissions
... completely surprised me and resulted in a very long reaction time that I estimated to be 0.75 seconds. (This estimate is on the tape, a couple of minutes after the event.) I .. (made) .. a conscious effort to compare the magnitudes of the two stars during the brief occultation.] Transparency was exc ...
... completely surprised me and resulted in a very long reaction time that I estimated to be 0.75 seconds. (This estimate is on the tape, a couple of minutes after the event.) I .. (made) .. a conscious effort to compare the magnitudes of the two stars during the brief occultation.] Transparency was exc ...
Stars
... The Blue Supergiants will begin to burn up all of the hydrogen that they have after a few million years. When this happens, the outer shell of the star begins to expand. It grows to about triple the size that it currently is. The Blue Supergiant now becomes a Supergiant. Supergiants are orange/yello ...
... The Blue Supergiants will begin to burn up all of the hydrogen that they have after a few million years. When this happens, the outer shell of the star begins to expand. It grows to about triple the size that it currently is. The Blue Supergiant now becomes a Supergiant. Supergiants are orange/yello ...
Student 4
... Red dwarfs are by far the most common type of star in our galaxy but because they are dull, individual red dwarfs cannot easily be observed. From Earth, not one is visible to the naked eye. Proxima Centauri, the nearest star to the Sun, is a red dwarf, as are twenty of the next thirty nearest. Red d ...
... Red dwarfs are by far the most common type of star in our galaxy but because they are dull, individual red dwarfs cannot easily be observed. From Earth, not one is visible to the naked eye. Proxima Centauri, the nearest star to the Sun, is a red dwarf, as are twenty of the next thirty nearest. Red d ...
astronomy - Mr. Barnard
... According to this flowchart, the Sun will become (1) hotter and dimmer in stage 2, then cooler and brighter in stage 3 (2) cooler and dimmer in stage 2, then hotter and brighter in stage 3 (3) hotter and brighter in stage 2, then cooler and dimmer in stage 3 (4) cooler and brighter in stage 2, then ...
... According to this flowchart, the Sun will become (1) hotter and dimmer in stage 2, then cooler and brighter in stage 3 (2) cooler and dimmer in stage 2, then hotter and brighter in stage 3 (3) hotter and brighter in stage 2, then cooler and dimmer in stage 3 (4) cooler and brighter in stage 2, then ...
Lyra
Lyra (/ˈlaɪərə/; Latin for lyre, from Greek λύρα) is a small constellation. It is one of 48 listed by the 2nd century astronomer Ptolemy, and is one of the 88 constellations recognized by the International Astronomical Union. Lyra was often represented on star maps as a vulture or an eagle carrying a lyre, and hence sometimes referred to as Aquila Cadens or Vultur Cadens. Beginning at the north, Lyra is bordered by Draco, Hercules, Vulpecula, and Cygnus. Lyra is visible from the northern hemisphere from spring through autumn, and nearly overhead, in temperate latitudes, during the summer months. From the southern hemisphere, it is visible low in the northern sky during the winter months.The lucida or brightest star—and one of the brightest stars in the sky—is the white main sequence star Vega, a corner of the Summer Triangle. Beta Lyrae is the prototype of a class of stars known as Beta Lyrae variables, binary stars so close to each other that they become egg-shaped and material flows from one to the other. Epsilon Lyrae, known informally as the Double Double, is a complex multiple star system. Lyra also hosts the Ring Nebula, the second-discovered and best-known planetary nebula.