Radio Telescope. by BIPLAB DAS
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Radio telescopes can observe planets, detect sun spots, see between stars, and observe energetic objects. They work by collecting radio waves using a parabolic dish and receiver, amplifying the signal, and recording the data. Radio telescopes have advantages over optical telescopes in that they can see further distances, including the other side of the Milky Way, and can observe day or night. Their disadvantages are that they must be very large to be effective and are expensive to build and maintain, requiring super-cooled electronics for precision.
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02 Light And Telescopes Mc Neely 2008
Edwin Hubble used the 48-inch Palomar Telescope in 1949 to make discoveries. There are three main types of telescopes: refractors which use lenses, reflectors which use mirrors, and compound telescopes which use both lenses and mirrors. The aperture and focal length of a telescope determine its light gathering ability and magnification. Atmospheric conditions like light pollution, turbulence, and temperature affect telescope views.
Ch. 24
The document summarizes key aspects of the sun and tools used to study space. It discusses the electromagnetic spectrum and how spectroscopy uses light wavelengths to study stars' compositions. It describes three main types of telescopes - refracting, reflecting, and radio - and advantages of space-based telescopes. It also outlines the sun's layers and structure, features like sunspots and solar flares, and how nuclear fusion produces the sun's energy through converting hydrogen to helium.
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Radio astronomy allows astronomers to observe natural radio waves from space objects that emit in the frequency range of 3 mHz to 900 nHz. Radio telescopes are used to capture these radio waves and study objects that cannot be seen with visible light alone. Radio telescopes are large antenna arrays that detect radio waves and allow astronomers to view phenomena like black holes and nebulae. The W50 nebula is an example of an object only visible through radio waves, as this system was formed by a giant star's explosion 20,000 years ago and does not emit visible light.
Astronomy - State of the Art - Telescopes
Telescopes help us learn about the universe by collecting more light than the human eye and seeing more detail. Larger telescopes collect more light and see sharper images, but the atmosphere limits ground-based telescope resolution. Telescope size has grown exponentially over time. Adaptive optics and interferometry allow telescopes to approach the theoretical resolution limit. While space telescopes avoid many atmospheric limitations, they are much more expensive to build and operate. The Hubble Space Telescope has revolutionized astronomy through high-quality images across the electromagnetic spectrum.
Lunar Ultraviolet Cosmic Imager (LUCI)
The document summarizes the prospect of UV observations from the Moon using a proposed UV telescope called LUCI. Some key points:
1. LUCI would be a small UV telescope (30cm aperture) to be deployed on the lunar surface by Team Indus, to take advantage of the Moon's stable environment for UV astronomy.
2. The telescope would image bright UV sources like stars and nebulae to magnitudes of 12 to study transients and variability. It would cover 60 square degrees in a lunar day.
3. The design and calibration of LUCI's optics, structure, detectors, and electronics are described, showing it can meet weight and size constraints for deployment on the lunar lander while achieving the
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- 1. A PRESENTATION ON RADIO TELESCOPE by BIPLAB DAS Roll No : 24 ECE 1 ACADEMY OF TECHNOLOGY
- 2. Radio Telescope Basics : What does Radio Telescope do ??? Planet Observation… Detect Sun Spots… Seeing Between Stars… Observing Energetic Objects… History behind the Radio Telescope !!! o Karl Jansky ,a Radio Engineer first discovered radio waves in August 1931…
- 4. Light rays from a distant source, parallel to the "mirror axis" all meet at one point, the focus. Position Of The Sub-Reflector CCD
- 5. How do Radio Telescopes work? press downtelescopes work like this Press radio arrow to view animation Some up arrow to reset animation Other radio telescopes work like this
- 6. Once you get the raw signal from the antenna…
- 7. Make Your Own Radio Image
- 8. +++++++++++ Advantages of radio telescopes They can see the other side of the Milky Way. They work day or night. They can see much further distance objects compared to optical telescope. They are relatively simple technology.
- 9. Disadvantages of radio telescopes. They have to be very very big. They are expensive to build and maintain. The electronics need to be super cooled to increase precision.
- 10. CONCLUSION : Work together as a complementary couple :
- 12. Any Queries ?