Shows` Detail - Nejoum Planetarium
... Adventure ride to Moon day by day in our sky. KG to II KG to II This is called the phases of the Moon. Each shape of the Moon also has a becomes the first dog to be on the Moon and as an name. The show covers shapes of the Moon and related astronaut dog explores the barren Moonland. festivals (lunar ...
... Adventure ride to Moon day by day in our sky. KG to II KG to II This is called the phases of the Moon. Each shape of the Moon also has a becomes the first dog to be on the Moon and as an name. The show covers shapes of the Moon and related astronaut dog explores the barren Moonland. festivals (lunar ...
Astronomy 21 – Test 2 – Answers
... emission (explain the astrophysical mechanism)? You have to look through dust so you have to use longer wavelength observations. The 21cm line is useful for that (it is radiation emitted during the spin flip of the electron of atomic hydrogen). Redshifts of that line can be measured and velocities c ...
... emission (explain the astrophysical mechanism)? You have to look through dust so you have to use longer wavelength observations. The 21cm line is useful for that (it is radiation emitted during the spin flip of the electron of atomic hydrogen). Redshifts of that line can be measured and velocities c ...
Properties of Ellipticals and Spirals
... Velocity dispersions are responsible for the overall shape of galaxies. Oblate and Prolate Ellipticals – how that? Spiral: Velocities of stars in spirals are more ordered. Stars rotate around the galactic center in a disk surrounding it – Halo is random. Spiral galaxies are flattened by rotation (el ...
... Velocity dispersions are responsible for the overall shape of galaxies. Oblate and Prolate Ellipticals – how that? Spiral: Velocities of stars in spirals are more ordered. Stars rotate around the galactic center in a disk surrounding it – Halo is random. Spiral galaxies are flattened by rotation (el ...
The Reflector: January 2010 - Peterborough Astronomical Association
... globular cluster. They’re almost as old as the universe itself. It’s also the finest in the Northern Hemisphere with nearly a million stars grouped into a ball 160 lightyears across. The dead stars known as Messier objects M57 and M27 will be putting in the last of their ghostly appearances for the ...
... globular cluster. They’re almost as old as the universe itself. It’s also the finest in the Northern Hemisphere with nearly a million stars grouped into a ball 160 lightyears across. The dead stars known as Messier objects M57 and M27 will be putting in the last of their ghostly appearances for the ...
Star Birth
... • Without CO molecules to provide cooling, the clouds that formed the first stars had to be considerably warmer than today’s molecular clouds • The first stars must therefore have been more massive than most of today’s stars, for gravity to overcome pressure ...
... • Without CO molecules to provide cooling, the clouds that formed the first stars had to be considerably warmer than today’s molecular clouds • The first stars must therefore have been more massive than most of today’s stars, for gravity to overcome pressure ...
Galaxy Characteristics
... Core brightness - radius/overall luminosity Large Luminosity Ellipticals faint core large core radius Shape Large Ellipticals – more spherical (E0) Motion of stars – very random Virial Theorem – relation of kinetic energy to potential (gravitational) energy of a system ...
... Core brightness - radius/overall luminosity Large Luminosity Ellipticals faint core large core radius Shape Large Ellipticals – more spherical (E0) Motion of stars – very random Virial Theorem – relation of kinetic energy to potential (gravitational) energy of a system ...
EXAM II REVIEW
... • Telescopes can see more detail than our eyes angular resolution • Telescopes/instruments can detect light that is invisible to our eyes (e.g., infrared, ultraviolet) ...
... • Telescopes can see more detail than our eyes angular resolution • Telescopes/instruments can detect light that is invisible to our eyes (e.g., infrared, ultraviolet) ...
Chapter 1
... Moon- we see it as it was 1 second ago Sun- 8 minutes ago Saturn- 80 minutes ago Sirius (the brightest star)- 8.5 years ago Andromeda galaxy- 2.2 million years ago ...
... Moon- we see it as it was 1 second ago Sun- 8 minutes ago Saturn- 80 minutes ago Sirius (the brightest star)- 8.5 years ago Andromeda galaxy- 2.2 million years ago ...
Stellar Explosions
... Supernova explosions are very energetic events. By studying supernovae and their remnants in multiwavelengths, astronomers gain a clearer picture of the death of massive stars and their effect on the gas and dust of the interstellar medium surrounding them. The supernova blasts from massive stars ca ...
... Supernova explosions are very energetic events. By studying supernovae and their remnants in multiwavelengths, astronomers gain a clearer picture of the death of massive stars and their effect on the gas and dust of the interstellar medium surrounding them. The supernova blasts from massive stars ca ...
Practice Questions for Final
... B. A spaceship passing near a 10 solar mass black hole is much more likely to be destroyed than a spaceship passing at the same distance from the center of a 10 solar mass mainsequence star. C. If you watch someone else fall into a black hole, you will never see them cross the event horizon. However ...
... B. A spaceship passing near a 10 solar mass black hole is much more likely to be destroyed than a spaceship passing at the same distance from the center of a 10 solar mass mainsequence star. C. If you watch someone else fall into a black hole, you will never see them cross the event horizon. However ...
tut35 Magnitudes
... Figure 4 illustrates the visibility of stars on sky background brightness based on magnitude/arcsecond2, for a trained observer with dark adapted vision. It shows why bright planets may be naked-eye visible during daylight, especially if one knows where to look. Normal daylight skies have magnitude ...
... Figure 4 illustrates the visibility of stars on sky background brightness based on magnitude/arcsecond2, for a trained observer with dark adapted vision. It shows why bright planets may be naked-eye visible during daylight, especially if one knows where to look. Normal daylight skies have magnitude ...
Sirius - Springer
... astrophysics in a way which provides a realistic view of how science progresses over time ▶ Explains how studies of the star Sirius have played a pivotal role in achieving our current understanding of the nature and fate of stars ▶ Demonstrates the importance of Sirius to many civilisations and cult ...
... astrophysics in a way which provides a realistic view of how science progresses over time ▶ Explains how studies of the star Sirius have played a pivotal role in achieving our current understanding of the nature and fate of stars ▶ Demonstrates the importance of Sirius to many civilisations and cult ...
The Celestial Sphere
... stars that the eye picks out. The stars are usually not near each other; they just lie in the same direction. • Historically, the brightest stars are stars of the 1st magnitude. The next brightest are stars of the 2nd magnitude. The faintest stars one can see by eye are 6th magnitude. (The biggest ...
... stars that the eye picks out. The stars are usually not near each other; they just lie in the same direction. • Historically, the brightest stars are stars of the 1st magnitude. The next brightest are stars of the 2nd magnitude. The faintest stars one can see by eye are 6th magnitude. (The biggest ...
Perimeter Dark Matter Online Game Worksheet #2 1. Match the
... c. Add stars d. Remove stars 3. Scientists observed the speeds of stars in galaxies were: a. Faster than theory predicted b. Slower than theory predicted c. In agreement with theory 4. The following graph is: ...
... c. Add stars d. Remove stars 3. Scientists observed the speeds of stars in galaxies were: a. Faster than theory predicted b. Slower than theory predicted c. In agreement with theory 4. The following graph is: ...
Lecture 31
... Found to have stars around them (galaxies) in most cases. Supermassive BH model suggests a billion solar masses by Eddington Limit--Max M(BH) = L /30,000 (Solar Ms & Ls). If larger mass, luminosity would blow away infalling material. QSO's: Radio quiet Quasi-Stellar Objects. ACTIVE GALAXIES: On aver ...
... Found to have stars around them (galaxies) in most cases. Supermassive BH model suggests a billion solar masses by Eddington Limit--Max M(BH) = L /30,000 (Solar Ms & Ls). If larger mass, luminosity would blow away infalling material. QSO's: Radio quiet Quasi-Stellar Objects. ACTIVE GALAXIES: On aver ...
Project 3. Colour in Astronomy
... This does not mean that Vega show the same brightness through all filters. It is an arbitrary decision taken by the astronomers who have agreed on taking Vega as the zero point for the magnitude scale. Exercise 2: Spica and Antares are two well-known stars with colour indices (B-V)=0.13 and (B-V)=+1 ...
... This does not mean that Vega show the same brightness through all filters. It is an arbitrary decision taken by the astronomers who have agreed on taking Vega as the zero point for the magnitude scale. Exercise 2: Spica and Antares are two well-known stars with colour indices (B-V)=0.13 and (B-V)=+1 ...
apparent retrograde motion - Indiana University Astronomy
... Predictions were not much better than those of Ptolemy ...
... Predictions were not much better than those of Ptolemy ...
Galactic Evolution:
... mathematical and physical description of all relevant processes and object is still lacking. There are attempts to construct some comprehensive and software package for study of the galactic evolution. I just mention th Galaxy Evolution tool (GEtool) that is a software package currently being develo ...
... mathematical and physical description of all relevant processes and object is still lacking. There are attempts to construct some comprehensive and software package for study of the galactic evolution. I just mention th Galaxy Evolution tool (GEtool) that is a software package currently being develo ...
supplemental educational materials PDF
... they are visible in the northern sky all year long. These include: Ursa Major, the Great Bear; Ursa Minor, the Small Bear; Draco, the Dragon; Cassiopeia, the Queen of Ethiopia; and Cepheus, the King of Ethiopia. • Students may incorrectly identify the Big Dipper or the Pleiades as constellations, bu ...
... they are visible in the northern sky all year long. These include: Ursa Major, the Great Bear; Ursa Minor, the Small Bear; Draco, the Dragon; Cassiopeia, the Queen of Ethiopia; and Cepheus, the King of Ethiopia. • Students may incorrectly identify the Big Dipper or the Pleiades as constellations, bu ...
EXAM II REVIEW - University of Maryland: Department of
... Practice discussion questions Practice multiple choice ...
... Practice discussion questions Practice multiple choice ...
GSC2.2 Calibration Details or What do all those little numbers mean?
... 5000+ objects in training set OC1 oblique decision tree (Murthy et al) Build several decision trees & let them vote Classification categories star / nonstar / defect ...
... 5000+ objects in training set OC1 oblique decision tree (Murthy et al) Build several decision trees & let them vote Classification categories star / nonstar / defect ...
Linking Asteroids and Meteorites through Reflectance
... • 4 in-class exams and a cumulative final • I will drop the lowest test score • The average of the 4 highest scores will be 80% of your grade • 10% of your grade will be your homework score • 10% of your grade will be from PRS ...
... • 4 in-class exams and a cumulative final • I will drop the lowest test score • The average of the 4 highest scores will be 80% of your grade • 10% of your grade will be your homework score • 10% of your grade will be from PRS ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.