aaswinter06
... • Evidence for a hot, blue companion (B3 V) was discovered when V838 Mon cooled (10,11). The progenitor of the outbursting component has been estimated to be 1) a very massive (65 Msolar), hot (Teff ~ 50,000 K), evolved star such as a Wolf-Rayet star (7); or 2) a main sequence or pre-main sequence s ...
... • Evidence for a hot, blue companion (B3 V) was discovered when V838 Mon cooled (10,11). The progenitor of the outbursting component has been estimated to be 1) a very massive (65 Msolar), hot (Teff ~ 50,000 K), evolved star such as a Wolf-Rayet star (7); or 2) a main sequence or pre-main sequence s ...
Impossible planets.
... and Upsilon Andromedae, 54 light-years away -- were very much like that first peculiar discovery: absurdly close in for their Jupiteresque mass. But two others -- around 70 Virginis, 59 light-years away, and HD 114762, 91 light-years away, both in Virgo -- were equally strange in another way. While ...
... and Upsilon Andromedae, 54 light-years away -- were very much like that first peculiar discovery: absurdly close in for their Jupiteresque mass. But two others -- around 70 Virginis, 59 light-years away, and HD 114762, 91 light-years away, both in Virgo -- were equally strange in another way. While ...
Full 11x8.5" Calendar, High Resolution - Chandra X
... astronomers have stitched together a cosmic tapestry of the debris field that was created when a white dwarf star exploded, sending its material hurtling into space as seen from Earth over a millennium ago. In this new Chandra image, low, medium, and higher-energy X-rays are colored red, green, and b ...
... astronomers have stitched together a cosmic tapestry of the debris field that was created when a white dwarf star exploded, sending its material hurtling into space as seen from Earth over a millennium ago. In this new Chandra image, low, medium, and higher-energy X-rays are colored red, green, and b ...
From Inner Earth to Outer Space
... twinkle, and hinder or totally absorb infrared, ultraviolet, gamma ray and X-ray wavelengths . To minimize atmospheric distortion, scientists built observatories on mountaintops and away from the areas of highly radiated light, or sky glow, found near large cities. This effort met with varying level ...
... twinkle, and hinder or totally absorb infrared, ultraviolet, gamma ray and X-ray wavelengths . To minimize atmospheric distortion, scientists built observatories on mountaintops and away from the areas of highly radiated light, or sky glow, found near large cities. This effort met with varying level ...
The World`s Easiest Equatorial Mount Instruction Manual
... can pick a star from a constellation that is in the sky and use a particular star in it. You will not only have to be able to identify it, but in Step 5 you will need to be able to center it in the telescope. Unfortunately, there is no other alternative. If you want to use your equatorial mount, you ...
... can pick a star from a constellation that is in the sky and use a particular star in it. You will not only have to be able to identify it, but in Step 5 you will need to be able to center it in the telescope. Unfortunately, there is no other alternative. If you want to use your equatorial mount, you ...
Here
... • Now you need to determine the positions of the target and your reference star on all images and to perform aperture photometry of the target and reference star on all images via the script “photo.prg”. The script basically uses two MIDAS-commands. One is “center/gauss” which you will use interact ...
... • Now you need to determine the positions of the target and your reference star on all images and to perform aperture photometry of the target and reference star on all images via the script “photo.prg”. The script basically uses two MIDAS-commands. One is “center/gauss” which you will use interact ...
Looking Further
... shuttle Endeavour to repair Hubble. The astronauts on Endeavour repaired the problems. ...
... shuttle Endeavour to repair Hubble. The astronauts on Endeavour repaired the problems. ...
Speaker Index.1996-2013 - Alachua Astronomy Club
... Gamma-Ray Bursts and the SWIFT Space Satellite Weird Telescopes Extraterrestrial Life Over the Ages A History of the Telescope: What You Don't Know Gamow's Fireball The Solar System (at SFCC Planetarium) Why and How to Observe the Moon Building the Suwannee Skies Observatory Celestial Perversions: D ...
... Gamma-Ray Bursts and the SWIFT Space Satellite Weird Telescopes Extraterrestrial Life Over the Ages A History of the Telescope: What You Don't Know Gamow's Fireball The Solar System (at SFCC Planetarium) Why and How to Observe the Moon Building the Suwannee Skies Observatory Celestial Perversions: D ...
Light and shadow from distant worlds
... the radius of Mercury’s orbit in our own Solar System. The exoplanet, 51 Peg b, was discovered by measuring the line-of-sight (radial) velocity of the star as it orbited the centre-of-mass of the system. The magnitude of this velocity reflex yields—via conservation of momentum—the planet mass times ...
... the radius of Mercury’s orbit in our own Solar System. The exoplanet, 51 Peg b, was discovered by measuring the line-of-sight (radial) velocity of the star as it orbited the centre-of-mass of the system. The magnitude of this velocity reflex yields—via conservation of momentum—the planet mass times ...
Lec12
... squeezed as they move into spiral arms 2. Squeezing of clouds triggers star formation 3. Young stars flow out of spiral arms ...
... squeezed as they move into spiral arms 2. Squeezing of clouds triggers star formation 3. Young stars flow out of spiral arms ...
Telescope Fundamentals - Dunlap Institute
... for high spatial frequencies, this is achieved through figuring and polishing of the surface for low spatial frequencies, this is achieved by active optics Space-based telescopes: Optics need to produce a diffraction limited image In optical, mirror surface should ideally be ~1/40 of a wave (1/20 of ...
... for high spatial frequencies, this is achieved through figuring and polishing of the surface for low spatial frequencies, this is achieved by active optics Space-based telescopes: Optics need to produce a diffraction limited image In optical, mirror surface should ideally be ~1/40 of a wave (1/20 of ...
Export To Word
... Recognize that the Milky Way is part of the expanding universe. Explain that stars change over time, and that stars can be different; some are smaller, some are larger and some appear brighter than others. Describe the Sun as a medium-sized star with sunspots and storms that can affect weather and r ...
... Recognize that the Milky Way is part of the expanding universe. Explain that stars change over time, and that stars can be different; some are smaller, some are larger and some appear brighter than others. Describe the Sun as a medium-sized star with sunspots and storms that can affect weather and r ...
THE 3-D UNIVERSE CONCEPTS
... just by how bright it appears from Earth. For instance, a close, faint star can appear just as bright in the sky as a brighter star that is farther away. The difference between a star’s actual brightness and its apparent brightness when seen from Earth indicates how far away it is. To judge a star’s ...
... just by how bright it appears from Earth. For instance, a close, faint star can appear just as bright in the sky as a brighter star that is farther away. The difference between a star’s actual brightness and its apparent brightness when seen from Earth indicates how far away it is. To judge a star’s ...
ESA BR-170 - ESA Science
... s recently as 200 years ago the Earth was widely thought to be only about six thousand years old – in 1650 Bishop Ussher had famously calculated the date of creation as 4004 BC. The first to recognise the true age of the Earth was a Scottish physician called James Hutton, an amateur geologist, who, ...
... s recently as 200 years ago the Earth was widely thought to be only about six thousand years old – in 1650 Bishop Ussher had famously calculated the date of creation as 4004 BC. The first to recognise the true age of the Earth was a Scottish physician called James Hutton, an amateur geologist, who, ...
How Telescopes Work.
... to much greater than the diffraction limit, though once again, with good quality data, it may be possible. It limits searches for planets, as their light tends to get drowned out in the outer parts of the Airy function of their (much brighter) star. The pattern also applies the other way around – if ...
... to much greater than the diffraction limit, though once again, with good quality data, it may be possible. It limits searches for planets, as their light tends to get drowned out in the outer parts of the Airy function of their (much brighter) star. The pattern also applies the other way around – if ...
Missions
... The first infrared survey of the sky, performed by Gerry Neugebauer and Robert Leighton – who built their own telescope for the purpose – changed this view completely. The results were published in 1965 and Harwit describes them as “electrifying”: they revealed ten objects that were completely invis ...
... The first infrared survey of the sky, performed by Gerry Neugebauer and Robert Leighton – who built their own telescope for the purpose – changed this view completely. The results were published in 1965 and Harwit describes them as “electrifying”: they revealed ten objects that were completely invis ...
Astro 10: Introductory Astronomy
... -- cosmic ray induced transformations of Ar40->Al-26->Mg-26 over long periods in the solidified rock would not produce the uniform distribution seen since the required cosmic ray energies to produce Al26 are low and penetrate poorly into rock. -- Asymptotic Giant Branch stars, and massive Wolf Rayet ...
... -- cosmic ray induced transformations of Ar40->Al-26->Mg-26 over long periods in the solidified rock would not produce the uniform distribution seen since the required cosmic ray energies to produce Al26 are low and penetrate poorly into rock. -- Asymptotic Giant Branch stars, and massive Wolf Rayet ...
Unit 2 The History of Astronomy
... characteristic set of light wavelengths. • Scientists can use that “light signature” to identify unknown elements. • When analyzing light from the Sun, astronomers found a unique pattern of wavelengths. – Since at the time there was no known counterpart to the element on Earth, scientists named it f ...
... characteristic set of light wavelengths. • Scientists can use that “light signature” to identify unknown elements. • When analyzing light from the Sun, astronomers found a unique pattern of wavelengths. – Since at the time there was no known counterpart to the element on Earth, scientists named it f ...
Orion- The Swordsman of the Sky - A Winter Constellation from the
... number 42 (or M42 the Orion Nebula), M43 (de Marion’s Nebula) and the Trapezium, which consists of four stars, approximately the same brightness in a box shape. This object ...
... number 42 (or M42 the Orion Nebula), M43 (de Marion’s Nebula) and the Trapezium, which consists of four stars, approximately the same brightness in a box shape. This object ...
The Milky Way
... Note that the following lectures include animations and PowerPoint effects such as ...
... Note that the following lectures include animations and PowerPoint effects such as ...
The Science of Life in the Universe (Chap 2
... Question for Thought What is the source of the chemical elements of the universe? A B C D E ...
... Question for Thought What is the source of the chemical elements of the universe? A B C D E ...
The Science of Life in the Universe (Chap 2
... Question for Thought What is the source of the chemical elements of the universe? A B C D E ...
... Question for Thought What is the source of the chemical elements of the universe? A B C D E ...
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.