Star formation - Grosse Pointe Public School System
... • Stars are “born” when the core gets hot enough to begin nuclear fusion. • When fusion begins, its outward push generates enough pressure to stop gravitational contraction of the forming star and its size stabilizes. This is called hydrostatic equilibrium. • This balance of fusion vs. gravitational ...
... • Stars are “born” when the core gets hot enough to begin nuclear fusion. • When fusion begins, its outward push generates enough pressure to stop gravitational contraction of the forming star and its size stabilizes. This is called hydrostatic equilibrium. • This balance of fusion vs. gravitational ...
EMR, Telescopes, Stars, Solar System study guide `14-15
... 9. The distance that light travels in a year is known as a _________________________. 10. The time it takes light from a star 100 light years away to reach Earth is ___________________. 11. Parallax is used to find the ____________________________ to nearby stars. 12. Astronomers use a _____________ ...
... 9. The distance that light travels in a year is known as a _________________________. 10. The time it takes light from a star 100 light years away to reach Earth is ___________________. 11. Parallax is used to find the ____________________________ to nearby stars. 12. Astronomers use a _____________ ...
The William Optics Gran Turismo 81
... found it to be perfect. At low and high powers, stars were pinpoint across the field of view. I viewed Saturn with my 5-mm Nagler eyepiece (128x). The rings were in their splendor with the Cassini Divisions easily seen. With only 3.2 inches of aperture, this is not a telescope for deep-space observi ...
... found it to be perfect. At low and high powers, stars were pinpoint across the field of view. I viewed Saturn with my 5-mm Nagler eyepiece (128x). The rings were in their splendor with the Cassini Divisions easily seen. With only 3.2 inches of aperture, this is not a telescope for deep-space observi ...
ABSTRACT
... waves of nearly (within 5%) the same wavelength, constructive interference at some point results from waves whose phases differ by an integer multiple of their wavelength. Similarly, total destructive interference results from the sum of two or more waves whose phases differ by integer multiples of ...
... waves of nearly (within 5%) the same wavelength, constructive interference at some point results from waves whose phases differ by an integer multiple of their wavelength. Similarly, total destructive interference results from the sum of two or more waves whose phases differ by integer multiples of ...
ppt - Serbian Virtual Observatory - astronomical observatory belgrade
... There has existed an intense and fruitful cooperation between the two institutions: Astronomical Institute of Bulgarian Academy of Sciences and Astronomical Observatory in Belgrade, including also research field of double stars. In the framework of this cooperation we have had observations at both ...
... There has existed an intense and fruitful cooperation between the two institutions: Astronomical Institute of Bulgarian Academy of Sciences and Astronomical Observatory in Belgrade, including also research field of double stars. In the framework of this cooperation we have had observations at both ...
Magellan Associate Director Report Personnel
... mirror was washed instead. • A “rain event” on Feb 28 affected the primary mirrors of both telescopes. This was after the Baade mirror was washed, but before the Clay mirror washing. After washing of Clay mirror, patchy areas persisted. • These events will have an impact on planning re-aluminizing a ...
... mirror was washed instead. • A “rain event” on Feb 28 affected the primary mirrors of both telescopes. This was after the Baade mirror was washed, but before the Clay mirror washing. After washing of Clay mirror, patchy areas persisted. • These events will have an impact on planning re-aluminizing a ...
Comparative h- and m-indices for Fifteen Ground- and Space
... airborne observatory, future assessments should measure SOFIA against other observatories while taking into account the available hours for data collection for this unique non‐space, non‐ground observatory. ...
... airborne observatory, future assessments should measure SOFIA against other observatories while taking into account the available hours for data collection for this unique non‐space, non‐ground observatory. ...
Three Media Reports by Carole Gallagher
... 1930. However, even when using improved telescopes, Pluto appears as a faint object 10,000 times dimmer than the faintest star in the sky visible to the unaided eye. Since 1930, no new planets have been discovered using telescopes. This is because other planets beyond our solar system are so far awa ...
... 1930. However, even when using improved telescopes, Pluto appears as a faint object 10,000 times dimmer than the faintest star in the sky visible to the unaided eye. Since 1930, no new planets have been discovered using telescopes. This is because other planets beyond our solar system are so far awa ...
Convened at 8:30 for snacks and check
... By probing for weak lensing - how is the apparent shape of galaxies altered by intervening materials? 2. Another strength will be looking for near-Earth objects, as well as more distant objects in our solar system - will find 90% of potentially hazardous asteroids down to 140 m in 10 years of operat ...
... By probing for weak lensing - how is the apparent shape of galaxies altered by intervening materials? 2. Another strength will be looking for near-Earth objects, as well as more distant objects in our solar system - will find 90% of potentially hazardous asteroids down to 140 m in 10 years of operat ...
X Ray Astronomy
... • This can show information like how many X-rays are coming from the object at a particular energy. There are also some electron transitions which have lines in the "soft" (low-energy) X-ray band. If these are not there then we can tell that, for example, there is very little (or even no) cool X-ray ...
... • This can show information like how many X-rays are coming from the object at a particular energy. There are also some electron transitions which have lines in the "soft" (low-energy) X-ray band. If these are not there then we can tell that, for example, there is very little (or even no) cool X-ray ...
May 2015 – SAAO press releases
... However, the MASTER-SAAO telescope has just discovered its first comet. Comets are often described as ‘dirty snowballs’ and are composed of a ball of frozen ice with chemical compounds and dust mixed in. As a comet approaches the Sun, it begins to melt, resulting in a halo of gas and dust surroundin ...
... However, the MASTER-SAAO telescope has just discovered its first comet. Comets are often described as ‘dirty snowballs’ and are composed of a ball of frozen ice with chemical compounds and dust mixed in. As a comet approaches the Sun, it begins to melt, resulting in a halo of gas and dust surroundin ...
The winter sky over Bosham
... hottest stars visible to the naked eye, while the left ‘foot’ is marked by Saif, the sword. The body is completed by the three stars of the belt, all hot, blue stars that are much younger than Rigel and Betelgeuse. At the left of the belt are the star Alnitak and the Horsehead nebula—see the photogr ...
... hottest stars visible to the naked eye, while the left ‘foot’ is marked by Saif, the sword. The body is completed by the three stars of the belt, all hot, blue stars that are much younger than Rigel and Betelgeuse. At the left of the belt are the star Alnitak and the Horsehead nebula—see the photogr ...
Astronomy 20 Homework # 2
... Astronomy 20 Homework # 2 Handed out on October 8, 2004 Due in class on Friday, October 15, 2004 1. What are the apparent bolometric magnitudes of: (a) a Sun-like star 50 pc away? (b) a 100 Watt lightbulb 10 km away? (c) a galaxy containing ∼ 3 × 1010 stars of an average luminosity ∼ 0.5L⊙ 20 Mpc aw ...
... Astronomy 20 Homework # 2 Handed out on October 8, 2004 Due in class on Friday, October 15, 2004 1. What are the apparent bolometric magnitudes of: (a) a Sun-like star 50 pc away? (b) a 100 Watt lightbulb 10 km away? (c) a galaxy containing ∼ 3 × 1010 stars of an average luminosity ∼ 0.5L⊙ 20 Mpc aw ...
Black Hole Hunter Probes Our Psychedelic X-Ray Sun
... One coronal heating mechanism focuses on small-scale flaring events called nanoflares. These flares may be small on solar scales, but they are thought to dump huge quantities of energy into the corona, heating it. Current observatories cannot see individual nanoflares as they are too small to be res ...
... One coronal heating mechanism focuses on small-scale flaring events called nanoflares. These flares may be small on solar scales, but they are thought to dump huge quantities of energy into the corona, heating it. Current observatories cannot see individual nanoflares as they are too small to be res ...
The Prehistory and Cryptozoology of the Telescope
... Claims by European writers in the Middle Ages that a giant magnifying mirror enabled an inspector to stand before the mirror and examine ships as they approached port. There are claims that other harbors had these devices. The people who built the mirror at Alexandria never claimed it had these supe ...
... Claims by European writers in the Middle Ages that a giant magnifying mirror enabled an inspector to stand before the mirror and examine ships as they approached port. There are claims that other harbors had these devices. The people who built the mirror at Alexandria never claimed it had these supe ...
Earth and Space Science Teacher Notes
... B. It is covered with a powdery gray soil C. It is 2,160 miles across D. That is almost the size of the United States III. Mountains, Valleys, and Plains A. The surface of the moon rises with mountains and falls with valleys just like the Earth B. It also has flat plains C. The bright areas of the m ...
... B. It is covered with a powdery gray soil C. It is 2,160 miles across D. That is almost the size of the United States III. Mountains, Valleys, and Plains A. The surface of the moon rises with mountains and falls with valleys just like the Earth B. It also has flat plains C. The bright areas of the m ...
Class 26: EXAM 2
... C) mass. D) radius. E) luminosity. 26) Which of the following best describes the axes of a Hertzsprung-Russell (H-R) diagram? A) surface temperature on the horizontal axis and radius on the vertical axis B) mass on the horizontal axis and stellar age on the vertical axis C) mass on the horizontal ax ...
... C) mass. D) radius. E) luminosity. 26) Which of the following best describes the axes of a Hertzsprung-Russell (H-R) diagram? A) surface temperature on the horizontal axis and radius on the vertical axis B) mass on the horizontal axis and stellar age on the vertical axis C) mass on the horizontal ax ...
Planet definition - International Year of Astronomy 2009
... 30 March 2009, Paris: The International Year of Astronomy 2009 Cornerstone project, 100 Hours of Astronomy, is on track to be the largest single science public outreach event ever. More than 1500 events have been registered in over 130 countries and this number is increasing every day. 100 Hours of ...
... 30 March 2009, Paris: The International Year of Astronomy 2009 Cornerstone project, 100 Hours of Astronomy, is on track to be the largest single science public outreach event ever. More than 1500 events have been registered in over 130 countries and this number is increasing every day. 100 Hours of ...
MAORY: A Multi-conjugate Adaptive Optics RelaY for the E-ELT
... The MCAO performance was evaluated by an analytic code, allowing the power spectral density of the residual turbulence to be es timated. All the error sources that could not be directly included in the code were ac counted for in the global error budget, which amounts to a wavefront error of ~ 3 ...
... The MCAO performance was evaluated by an analytic code, allowing the power spectral density of the residual turbulence to be es timated. All the error sources that could not be directly included in the code were ac counted for in the global error budget, which amounts to a wavefront error of ~ 3 ...
Telescope Instruction Manual
... moons. This is one of the most satisfying objects in the sky to see simply because it looks like it does in pictures. Imagine seeing what you’ve seen in textbooks or NASA images from your backyard! Jupiter—The largest planet in our solar system is spectacular. Most noted features are its dark stripe ...
... moons. This is one of the most satisfying objects in the sky to see simply because it looks like it does in pictures. Imagine seeing what you’ve seen in textbooks or NASA images from your backyard! Jupiter—The largest planet in our solar system is spectacular. Most noted features are its dark stripe ...
d - Haus der Astronomie
... By averaging, we find the approximate distance to the Andromeda Galaxy: (2,52 ± 0,14) 10 lyly ...
... By averaging, we find the approximate distance to the Andromeda Galaxy: (2,52 ± 0,14) 10 lyly ...
Spitzer Space Telescope
The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space observatory launched in 2003. It is the fourth and final of the NASA Great Observatories program.The planned mission period was to be 2.5 years with a pre-launch expectation that the mission could extend to five or slightly more years until the onboard liquid helium supply was exhausted. This occurred on 15 May 2009. Without liquid helium to cool the telescope to the very low temperatures needed to operate, most of the instruments are no longer usable. However, the two shortest-wavelength modules of the IRAC camera are still operable with the same sensitivity as before the cryogen was exhausted, and will continue to be used in the Spitzer Warm Mission. All Spitzer data, from both the primary and warm phases, are archived at the Infrared Science Archive (IRSA).In keeping with NASA tradition, the telescope was renamed after its successful demonstration of operation, on 18 December 2003. Unlike most telescopes that are named after famous deceased astronomers by a board of scientists, the new name for SIRTF was obtained from a contest open to the general public.The contest led to the telescope being named in honor of astronomer Lyman Spitzer, who had promoted the concept of space telescopes in the 1940s. Spitzer wrote a 1946 report for RAND Corporation describing the advantages of an extraterrestrial observatory and how it could be realized with available or upcoming technology. He has been cited for his pioneering contributions to rocketry and astronomy, as well as ""his vision and leadership in articulating the advantages and benefits to be realized from the Space Telescope Program.""The US$800 million Spitzer was launched from Cape Canaveral Air Force Station, on a Delta II 7920H ELV rocket, Monday, 25 August 2003 at 13:35:39 UTC-5 (EDT).It follows a heliocentric instead of geocentric orbit, trailing and drifting away from Earth's orbit at approximately 0.1 astronomical unit per year (a so-called ""earth-trailing"" orbit). The primary mirror is 85 centimeters (33 in) in diameter, f/12, made of beryllium and is cooled to 5.5 K (−449.77 °F). The satellite contains three instruments that allow it to perform astronomical imaging and photometry from 3 to 180 micrometers, spectroscopy from 5 to 40 micrometers, and spectrophotometry from 5 to 100 micrometers.