Astronomy 122 mid Term Exam
... Use the blackbody simulator to get a better feel for this inverse relation and review the material in Module 1 Lecture F. Also, as I said in class, if this inverse relation did not hold then cooler objects would be emitting short wavelength high energy photons which doesn’t make any physical sense b ...
... Use the blackbody simulator to get a better feel for this inverse relation and review the material in Module 1 Lecture F. Also, as I said in class, if this inverse relation did not hold then cooler objects would be emitting short wavelength high energy photons which doesn’t make any physical sense b ...
Fixed Stars
... significance, and this for very profound reasons. A mighty spiritual Lodge and connected institutions are situated in the vicinity of the visible Sirius. From there a number of suns and planets are being monitored and supervised. Our Solar Logos has a close connection with the Sirian Logos, Who is o ...
... significance, and this for very profound reasons. A mighty spiritual Lodge and connected institutions are situated in the vicinity of the visible Sirius. From there a number of suns and planets are being monitored and supervised. Our Solar Logos has a close connection with the Sirian Logos, Who is o ...
fred`s 2017 astronomy challenge
... others of us to get used to searching the skies and learning where some of the easiest things to find are. There should be all the details you will need to find the objects, and I have lis ...
... others of us to get used to searching the skies and learning where some of the easiest things to find are. There should be all the details you will need to find the objects, and I have lis ...
Reflecting telescopes - School
... Magnitude is a measure of how bright a star is. There are, however, two different ways of indicating a stars magnitude; apparent magnitude and absolute magnitude. The scale we use to measure magnitude is based on that created by the ancient Greeks which ran from 1 to 6. On the ancient Greek scale 1 ...
... Magnitude is a measure of how bright a star is. There are, however, two different ways of indicating a stars magnitude; apparent magnitude and absolute magnitude. The scale we use to measure magnitude is based on that created by the ancient Greeks which ran from 1 to 6. On the ancient Greek scale 1 ...
Distance Measurement in Astronomy
... be 2.5 s for the Moon and up to 50 minutes for Jupiter and around five and a half hours for Pluto. (The last two numbers depend on the relative positions of the Earth, Jupiter and Pluto in their orbits) For objects outside the solar system other methods have to be found. ...
... be 2.5 s for the Moon and up to 50 minutes for Jupiter and around five and a half hours for Pluto. (The last two numbers depend on the relative positions of the Earth, Jupiter and Pluto in their orbits) For objects outside the solar system other methods have to be found. ...
S1-4-03 - Celestial Navigation
... The purpose of this lesson is to investigate how ancient cultures used the North Star to navigate. By the end of these activities students will, 1. Understand how cultures in the past used the position and motion of the North Star for navigation 2. Understand why navigation was important. 3. Know ho ...
... The purpose of this lesson is to investigate how ancient cultures used the North Star to navigate. By the end of these activities students will, 1. Understand how cultures in the past used the position and motion of the North Star for navigation 2. Understand why navigation was important. 3. Know ho ...
The Parent Stars of New Extrasolar Planet System Candidates
... it is possible that an inward-migrating planet was accreted by the star, thus changing the stellar surface and explaining the odd abundances observed. Unlike Gliese 876, the two stars HR 810 and HR 7875 are very similar to the sun. They are each close to one solar mass and are slightly younger than ...
... it is possible that an inward-migrating planet was accreted by the star, thus changing the stellar surface and explaining the odd abundances observed. Unlike Gliese 876, the two stars HR 810 and HR 7875 are very similar to the sun. They are each close to one solar mass and are slightly younger than ...
PH607 – Galaxies
... Since MACHOs would not emit any light of their own, they would be very hard to detect. Candidates. MACHOs could be black holes, neutron stars, brown dwarfs, unassociated planets. White dwarfs and very faint red dwarfs have also been proposed as candidate MACHOs. Conclusion: not a high fraction of th ...
... Since MACHOs would not emit any light of their own, they would be very hard to detect. Candidates. MACHOs could be black holes, neutron stars, brown dwarfs, unassociated planets. White dwarfs and very faint red dwarfs have also been proposed as candidate MACHOs. Conclusion: not a high fraction of th ...
HR DIAGRAM (Page 1) - McDonald Observatory
... instance, the faintest stars our eyes alone may see are apparent magnitude 6. A fairly bright star like Sirius is magnitude -1.4, while the sun is a blinding -26. For each single step up or down on the magnitude scale, the brightness changes by a factor of 2.512. And for every five steps, the bright ...
... instance, the faintest stars our eyes alone may see are apparent magnitude 6. A fairly bright star like Sirius is magnitude -1.4, while the sun is a blinding -26. For each single step up or down on the magnitude scale, the brightness changes by a factor of 2.512. And for every five steps, the bright ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... ‘The burst of the century’ “This was the burst of the century!” exclaimed James A. Wren, an engineer at Los Alamos National Laboratory and co-author of one of the papers. Indeed, GRB 130427A (as it is now called) was the most powerful gamma-ray burst and the second-brightest optical flash measured i ...
... ‘The burst of the century’ “This was the burst of the century!” exclaimed James A. Wren, an engineer at Los Alamos National Laboratory and co-author of one of the papers. Indeed, GRB 130427A (as it is now called) was the most powerful gamma-ray burst and the second-brightest optical flash measured i ...
preliminary version - University of Exeter
... claimed by Herbst et al(2002). However, both their chosen disc indicator (I-K excess) and rotation rate are strongly correlated with mass[3,4,5,6]. The observed correlation between rotation and I-K excess is most likely a secondary correlation, arising from the primary, underlying correlation betwee ...
... claimed by Herbst et al(2002). However, both their chosen disc indicator (I-K excess) and rotation rate are strongly correlated with mass[3,4,5,6]. The observed correlation between rotation and I-K excess is most likely a secondary correlation, arising from the primary, underlying correlation betwee ...
Stellar Evolution Guiding Questions Stars Evolve
... • If protostar less than 0.08 Msun, it can never develop the temperature and pressure to start the hydrogen fusion • Such “failed” stars end up as brown dwarfs, which ...
... • If protostar less than 0.08 Msun, it can never develop the temperature and pressure to start the hydrogen fusion • Such “failed” stars end up as brown dwarfs, which ...
Cassiopeia (constellation)
Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today. It is easily recognizable due to its distinctive 'M' shape when in upper culmination but in higher northern locations when near lower culminations in spring and summer it has a 'W' shape, formed by five bright stars. It is bordered by Andromeda to the south, Perseus to the southeast, and Cepheus to the north. It is opposite the Big Dipper.In northern locations above 34ºN latitude it is visible year-round and in the (sub)tropics it can be seen at its clearest from September to early November in its characteristic 'M' shape. Even in low southern latitudes below 25ºS is can be seen low in the North.