The Sky Tonight - Northern Stars Planetarium
... space. It’s the result of the death of an average star (like the Sun). The nebulosity you see is the outer layers of the star that have been blown out into space. Planetary nebula actually have no relationship to planets. They’re called planetary because of their appearance only, which led early ast ...
... space. It’s the result of the death of an average star (like the Sun). The nebulosity you see is the outer layers of the star that have been blown out into space. Planetary nebula actually have no relationship to planets. They’re called planetary because of their appearance only, which led early ast ...
The search for Earth-like planets - Creation Ministries International
... extrasolar planets. Kepler has only recently undergone initial tests by aiming it at a known extrasolar planet whose star is called HAT-P-7. Scientists are quite excited by the high quality data that will be available from Kepler. Initial tests show the spacecraft is working quite well. The Kepler s ...
... extrasolar planets. Kepler has only recently undergone initial tests by aiming it at a known extrasolar planet whose star is called HAT-P-7. Scientists are quite excited by the high quality data that will be available from Kepler. Initial tests show the spacecraft is working quite well. The Kepler s ...
Infinity Express-1
... Discuss how scientists go about formulating the “big questions” in a way in which the scientific method can be employed to ultimately yield correct answers. A good case study for discussion might be the story of Supernova 1987A in the Great Magellanic Cloud. Observations of distant supernovae led to ...
... Discuss how scientists go about formulating the “big questions” in a way in which the scientific method can be employed to ultimately yield correct answers. A good case study for discussion might be the story of Supernova 1987A in the Great Magellanic Cloud. Observations of distant supernovae led to ...
Volume 1 (Issue 7), July 2012
... Atmospheric effects on sunlight Sunlight reaches earth after travelling 93 million miles The passage of sunlight through the atmosphere, changes it’s properties and sometimes causes various atmospheric phenomena to occur. Halos: One of these is the “Halo” around the sun and the moon. High in the atm ...
... Atmospheric effects on sunlight Sunlight reaches earth after travelling 93 million miles The passage of sunlight through the atmosphere, changes it’s properties and sometimes causes various atmospheric phenomena to occur. Halos: One of these is the “Halo” around the sun and the moon. High in the atm ...
Introduction - Arecibo Observatory
... possible to study very weak radio sources by increasing the effective coherence time for them from, at maximum, a few minutes to hours (Wrobel et al. VLBA Sci. Memo 24). Currently, some 50 % of VLBI observations are carried out using the phase-referencing technique. However, phase referencing observ ...
... possible to study very weak radio sources by increasing the effective coherence time for them from, at maximum, a few minutes to hours (Wrobel et al. VLBA Sci. Memo 24). Currently, some 50 % of VLBI observations are carried out using the phase-referencing technique. However, phase referencing observ ...
Linking Asteroids and Meteorites through Reflectance
... • 90% of classified stars are on main sequence • Main sequence stars are “young” stars • If a star is leaving the main sequence, it is at the end of its lifespan of burning hydrogen into ...
... • 90% of classified stars are on main sequence • Main sequence stars are “young” stars • If a star is leaving the main sequence, it is at the end of its lifespan of burning hydrogen into ...
Star Cycle2013
... fuse it together. You actually end up with less energy than you started with! So instead of generating pressure to hold up the outer layers, the iron fusion actually takes it out of the core. Thus, there is nothing left to combat gravity from the outer layers. ...
... fuse it together. You actually end up with less energy than you started with! So instead of generating pressure to hold up the outer layers, the iron fusion actually takes it out of the core. Thus, there is nothing left to combat gravity from the outer layers. ...
giant molecular clouds
... Large, dense cluster of (yellow and red) stars in the foreground; ~ 50 million years old ...
... Large, dense cluster of (yellow and red) stars in the foreground; ~ 50 million years old ...
Chapter 3
... • A refracting telescope uses a lens instead of a mirror Some disadvantages of refracting telescopes: • The lens separate light into different colors. It focuses light at different distances along the optical axis. This is known as chromatic aberration. • To correct for chromatic aberration it is ne ...
... • A refracting telescope uses a lens instead of a mirror Some disadvantages of refracting telescopes: • The lens separate light into different colors. It focuses light at different distances along the optical axis. This is known as chromatic aberration. • To correct for chromatic aberration it is ne ...
Choosing your first telescope - Caribbean Institute of Astronomy
... Many first time telescope buyers are lured by marketing hype that promises ‘high power views’ of ‘1000x’ or more. The fact is that any telescope can theoretically yield any magnification you want, whether 10x or 5000x, just by changing the eyepiece. The problem is that such high magnifications are n ...
... Many first time telescope buyers are lured by marketing hype that promises ‘high power views’ of ‘1000x’ or more. The fact is that any telescope can theoretically yield any magnification you want, whether 10x or 5000x, just by changing the eyepiece. The problem is that such high magnifications are n ...
Evolution of a Star
... Once the red giant’s core uses its supply of helium, it contracts even more. As the core runs out of fuel, the outer layers escape into space. This leaves behind the hot dense core. The core contracts under the force of gravity. At this stage in a star’s evolution, it is a white dwarf. A white dwarf ...
... Once the red giant’s core uses its supply of helium, it contracts even more. As the core runs out of fuel, the outer layers escape into space. This leaves behind the hot dense core. The core contracts under the force of gravity. At this stage in a star’s evolution, it is a white dwarf. A white dwarf ...
Feb 2015 - Bays Mountain Park
... some point during the long, grueling day, a short circuit sparked one of the wires in the capsule. This spark eventually led to a raging fire in the 100% high pressure oxygen conditions in the spacecraft. In less than a minute, the men were dead from the toxic fumes and smoke produced by the fire. I ...
... some point during the long, grueling day, a short circuit sparked one of the wires in the capsule. This spark eventually led to a raging fire in the 100% high pressure oxygen conditions in the spacecraft. In less than a minute, the men were dead from the toxic fumes and smoke produced by the fire. I ...
The Great Nebula in Orion
... the environment and disrupting planet-forming disks around the cooler, longer-lived, and lower-mass, yellow and red stars like the Sun. The Orion Nebula is a special opportunity to observe the general context in which the Solar System formed. Astronomers have a standard theory that describes how a s ...
... the environment and disrupting planet-forming disks around the cooler, longer-lived, and lower-mass, yellow and red stars like the Sun. The Orion Nebula is a special opportunity to observe the general context in which the Solar System formed. Astronomers have a standard theory that describes how a s ...
View the presentation slides
... Fortunately, optical techniques are capable of exquisite accuracy. Let’s look at some data. This is a “Jupiter” (M ~ 0.96 MJ) orbiting a “Sol” (M = 0.88 MS). The orbital period is 9 years (Jupiter’s is 12), because the orbit is a bit smaller (4.2 AU instead of 5.2). This is how astronomers 60 light- ...
... Fortunately, optical techniques are capable of exquisite accuracy. Let’s look at some data. This is a “Jupiter” (M ~ 0.96 MJ) orbiting a “Sol” (M = 0.88 MS). The orbital period is 9 years (Jupiter’s is 12), because the orbit is a bit smaller (4.2 AU instead of 5.2). This is how astronomers 60 light- ...
BT-70-45 review by Phil Harrington
... binding. Interpupillary adjustment is also smooth, although it requires a little more force than I expected. Looking more deeply, I found the interiors of my test unit’s barrels, as well as all internal hardware, painted flat black. I saw no signs of metal shavings, dust, or other contaminants that ...
... binding. Interpupillary adjustment is also smooth, although it requires a little more force than I expected. Looking more deeply, I found the interiors of my test unit’s barrels, as well as all internal hardware, painted flat black. I saw no signs of metal shavings, dust, or other contaminants that ...
Nebulae
... glowing clouds of gas • They are found near hot, luminous stars of spectral types O and B • They are powered by ultraviolet light that they absorb from nearby hot stars • They are composed of ...
... glowing clouds of gas • They are found near hot, luminous stars of spectral types O and B • They are powered by ultraviolet light that they absorb from nearby hot stars • They are composed of ...
Astronomy and Space Science
... be obtained from observations like parallax. However, once d is found, M, L, R can be calculated easily. This is an amazing achievement - even to date, the radius can be measured directly, by resolving the stellar disk, for only a tiny percentage of stars. For non-stellar object, such as star cluste ...
... be obtained from observations like parallax. However, once d is found, M, L, R can be calculated easily. This is an amazing achievement - even to date, the radius can be measured directly, by resolving the stellar disk, for only a tiny percentage of stars. For non-stellar object, such as star cluste ...
Housing Decision Information:
... In addition to providing a simple voltage to current conversion capability, the CSR amplifiers are also capable of being used as stand-alone velocity servo controllers. This is because they are equipped with an additional summing amplifier which, when used to difference the input command voltage wit ...
... In addition to providing a simple voltage to current conversion capability, the CSR amplifiers are also capable of being used as stand-alone velocity servo controllers. This is because they are equipped with an additional summing amplifier which, when used to difference the input command voltage wit ...
Into the sub-mm
... Andrew Blain (MRAO) followed with a discussion of the results of a SCUBA pilot survey for previously unknown galaxies. The results and implications of Smail, Ivison and Blain’s observations of distant lensing clusters, revealing the first sub-millimetre selected objects (including a redshift 2 galax ...
... Andrew Blain (MRAO) followed with a discussion of the results of a SCUBA pilot survey for previously unknown galaxies. The results and implications of Smail, Ivison and Blain’s observations of distant lensing clusters, revealing the first sub-millimetre selected objects (including a redshift 2 galax ...
Warm-Up Monday, July 23, 2012
... • A. The stars of Orion are closer together in space. • B. The stars in Orion orbit the Sun, just like the planets. • C. The brightest stars in Orion are the ones that are closest to us. • D. You can’t tell if the brightest stars in Orion are really brighter than the others, or if they are just clos ...
... • A. The stars of Orion are closer together in space. • B. The stars in Orion orbit the Sun, just like the planets. • C. The brightest stars in Orion are the ones that are closest to us. • D. You can’t tell if the brightest stars in Orion are really brighter than the others, or if they are just clos ...
An Introduction to Adaptive Optics
... – Useful for telescopes with apertures < 2m. – Creates a 1 to 2 arc second guide star 5 to ...
... – Useful for telescopes with apertures < 2m. – Creates a 1 to 2 arc second guide star 5 to ...
Galaxies (and stars) in the far infrared: results from the AKARI All
... of cataloged astronomical sources of 70% most of them belong to Milky Way: cool stars, nebulae, cirruses... plus a few tens of dusty galaxies some sources still remain unidentified ...
... of cataloged astronomical sources of 70% most of them belong to Milky Way: cool stars, nebulae, cirruses... plus a few tens of dusty galaxies some sources still remain unidentified ...
FOTO Imaging
... camera, you can create a much sharper image than is visible to the eye through the eyepiece. Steve will demonstrate how a few minutes of computer processing time can produce a very usable image from the original. Steve has been an amateur astronomer for more than 40 years. His interest in astronomy ...
... camera, you can create a much sharper image than is visible to the eye through the eyepiece. Steve will demonstrate how a few minutes of computer processing time can produce a very usable image from the original. Steve has been an amateur astronomer for more than 40 years. His interest in astronomy ...
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.