On Sunspot and Starspot Lifetimes - Patrick M. Hartigan
... stronger magnetic fields covering larger areas (Burdyugina 2005). Another difference between the solar and stellar cases is that some stars exhibit long-lived polar spots (Strassmeier et al. 1999b). One stellar property that might act to limit spot sizes and hence their lifetimes is differential rot ...
... stronger magnetic fields covering larger areas (Burdyugina 2005). Another difference between the solar and stellar cases is that some stars exhibit long-lived polar spots (Strassmeier et al. 1999b). One stellar property that might act to limit spot sizes and hence their lifetimes is differential rot ...
A Telescope as Sharp as Hubble — But On the Ground
... In fact, though, the Hubble is relatively of puny. The mirror at its heart is just 7.9 ft. (2.4 m) across, which gives it only about a quarter of the light-gathering power of the 33-ft. (10 m) twin Keck telescopes, atop Hawaii's Mauna Kea. The HST's big selling point is its super-sharp vision. Hubbl ...
... In fact, though, the Hubble is relatively of puny. The mirror at its heart is just 7.9 ft. (2.4 m) across, which gives it only about a quarter of the light-gathering power of the 33-ft. (10 m) twin Keck telescopes, atop Hawaii's Mauna Kea. The HST's big selling point is its super-sharp vision. Hubbl ...
large PDF file
... 1. What kinds of nuclear reactions occur within a star like the Sun as it ages? 2. Where did the carbon atoms in our bodies come from? 3. What is a planetary nebula, and what does it have to do with planets? 4. What is a white dwarf star? 5. Why do high-mass stars go through more evolutionary stages ...
... 1. What kinds of nuclear reactions occur within a star like the Sun as it ages? 2. Where did the carbon atoms in our bodies come from? 3. What is a planetary nebula, and what does it have to do with planets? 4. What is a white dwarf star? 5. Why do high-mass stars go through more evolutionary stages ...
Chapter 20 Notes (smaller PDF file)
... 1. What kinds of nuclear reactions occur within a star like the Sun as it ages? 2. Where did the carbon atoms in our bodies come from? 3. What is a planetary nebula, and what does it have to do with planets? 4. What is a white dwarf star? 5. Why do high-mass stars go through more evolutionary stages ...
... 1. What kinds of nuclear reactions occur within a star like the Sun as it ages? 2. Where did the carbon atoms in our bodies come from? 3. What is a planetary nebula, and what does it have to do with planets? 4. What is a white dwarf star? 5. Why do high-mass stars go through more evolutionary stages ...
Ben R. Oppenheimer1,2 and Sasha Hinkley1,2
... limb of the Sun. Somehow one must filter the light of the Sun from that of Vega. In fact, during the famous solar eclipse of 1919, several bright stars in the Hyades were photographed within a few arcseconds of the Sun’s limb, confirming the prediction of general relativity, in one of the most impor ...
... limb of the Sun. Somehow one must filter the light of the Sun from that of Vega. In fact, during the famous solar eclipse of 1919, several bright stars in the Hyades were photographed within a few arcseconds of the Sun’s limb, confirming the prediction of general relativity, in one of the most impor ...
May 2016 - Newbury Astronomical Society
... There are two factors, external to the telescope that can have a major effect on the telescope and will cause The telescope itself can perturb the image, if it hasn’t deterioration of the image. Astronomers call these two reached ambient temperature, this will result in a “boiling annoying effects ‘ ...
... There are two factors, external to the telescope that can have a major effect on the telescope and will cause The telescope itself can perturb the image, if it hasn’t deterioration of the image. Astronomers call these two reached ambient temperature, this will result in a “boiling annoying effects ‘ ...
ppt - Institute for Astronomy
... Binaries with separations larger than about 100 AU tend to have massive circumstellar disks around the individual components. ...
... Binaries with separations larger than about 100 AU tend to have massive circumstellar disks around the individual components. ...
Procedure - Matt Jorgensen E
... 3) If there is time at the end of the class period, go to Step 1, Day 2 Day 2 and Day 3 - Modeling Solar Systems Distances: 1) Divide class into 9 groups and assign one planet per group Distribute photographs of the planets (include analyzing Pluto but be sure to point out it is no longer recognized ...
... 3) If there is time at the end of the class period, go to Step 1, Day 2 Day 2 and Day 3 - Modeling Solar Systems Distances: 1) Divide class into 9 groups and assign one planet per group Distribute photographs of the planets (include analyzing Pluto but be sure to point out it is no longer recognized ...
Activity I: Plotting a Light Curve due to a Transit
... A founding theme in astronomy is searching for worlds similar to ours. At first this was done for planets within our solar system. Now this search has expanded to include a much greater area our galaxy. One way in which the search is conducted is via the “Transit” method. A transit occurs when an ob ...
... A founding theme in astronomy is searching for worlds similar to ours. At first this was done for planets within our solar system. Now this search has expanded to include a much greater area our galaxy. One way in which the search is conducted is via the “Transit” method. A transit occurs when an ob ...
The Milky Way - Montgomery College
... The Galactic Center (I) Our view (in visible light) towards the Galactic center (GC) is heavily obscured by gas and dust: ...
... The Galactic Center (I) Our view (in visible light) towards the Galactic center (GC) is heavily obscured by gas and dust: ...
Nucleus hydrogen helium Relative Mass 1.007825 4.0037 Helium
... One theory of the origin of the Universe was that billions of years ago all matter was in one place, then it exploded (‘big bang’). Describe, in as much detail as you can, how our star (the Sun) formed from the time when there was just dust and gas (mostly hydrogen) up to now when it is in its main ...
... One theory of the origin of the Universe was that billions of years ago all matter was in one place, then it exploded (‘big bang’). Describe, in as much detail as you can, how our star (the Sun) formed from the time when there was just dust and gas (mostly hydrogen) up to now when it is in its main ...
Radial Stellar Pulsations
... term “variable” can be applied to any star whose brightness varies. In addition to various types of pulsators, these include eclipsing binaries, novae, and other stars whose brightness variations have nothing to do with pulsation.) RR Lyraes and Cepheids are important because they are used as distan ...
... term “variable” can be applied to any star whose brightness varies. In addition to various types of pulsators, these include eclipsing binaries, novae, and other stars whose brightness variations have nothing to do with pulsation.) RR Lyraes and Cepheids are important because they are used as distan ...
Exoplanets: PowerPoint presentation
... 2. We calculated the size of your planet by comparing it to the size of your star, which we said was the same as the Sun. If your star was… a) Larger than the Sun; the planet would be larger than calculated. b) Smaller than the Sun; the planet would be smaller than calculated 3. We calculated the di ...
... 2. We calculated the size of your planet by comparing it to the size of your star, which we said was the same as the Sun. If your star was… a) Larger than the Sun; the planet would be larger than calculated. b) Smaller than the Sun; the planet would be smaller than calculated 3. We calculated the di ...
Chapter 16 Star Birth
... – Stars form in clouds that are massive enough for gravity to overcome thermal pressure (and any other forms of resistance) – Such a cloud contracts and breaks up into pieces that go on to form stars ...
... – Stars form in clouds that are massive enough for gravity to overcome thermal pressure (and any other forms of resistance) – Such a cloud contracts and breaks up into pieces that go on to form stars ...
Orion-pr-2009 - Astrophysics Research Institute
... young stars emitting gas jets in all directions, creating quite a chaotic picture. There is much more going on in Orion than previously thought. The research team comprises more than a dozen astronomers from the US, the UK and a number of other European countries. The project thus has a truly intern ...
... young stars emitting gas jets in all directions, creating quite a chaotic picture. There is much more going on in Orion than previously thought. The research team comprises more than a dozen astronomers from the US, the UK and a number of other European countries. The project thus has a truly intern ...
