JSCh
ELITE MEMBER
- Joined
- Jun 9, 2011
- Messages
- 13,235
- Reaction score
- 2
- Country
- Location
FAST telescope is going to be the world largest single aperture radio telescope.
SKA telescope is going to be the world largest VLBI radio telescope. i.e. an array of radio telescopes combined as one.
Very-long-baseline interferometry - Wikipedia, the free encyclopedia
Astronomical interferometer - Wikipedia, the free encyclopedia
SKA telescope is going to be the world largest VLBI radio telescope. i.e. an array of radio telescopes combined as one.
Very-long-baseline interferometry - Wikipedia, the free encyclopedia
Very-long-baseline interferometry (VLBI) is a type of astronomical interferometry used in radio astronomy. In VLBI a signal from an astronomical radio source, such as a quasar, is collected at multiple radio telescopes on Earth. The distance between the radio telescopes is then calculated using the time difference between the arrivals of the radio signal at different telescopes. This allows observations of an object that are made simultaneously by many radio telescopes to be combined, emulating a telescope with a size equal to the maximum separation between the telescopes.
Astronomical interferometer - Wikipedia, the free encyclopedia
An astronomical interferometer is an array of telescopes or mirror segments acting together to probe structures with higher resolution by means of interferometry. The benefit of the interferometer is that the angular resolution of the instrument is nearly that of a telescope with the same aperture as a single large instrument encompassing all of the individual photon-collecting sub-components. The main drawback is that it does not collect as many photons as a large instrument of that size. Thus it is mainly useful for fine resolution of the more luminous astronomical objects, such as close binary stars. Another drawback is that the maximum angular size of a detectable emission source is limited by the minimum gap between detectors in the array.[1]
FAST is more sensitive, SKA has better resolution.