Goddard High Resolution Spectrograph
The Goddard High Resolution Spectrograph (GHRS or HRS) was a spectrograph installed on the Hubble Space Telescope. It was replaced by the Near Infrared Camera and Multi-Object Spectrometer (NICMOS) in 1997.[1]
GHRS facts
- Instrument type: Ultraviolet spectrograph
- Wavelength range: 1050 to 3200 Å (105 to 320 nm)
- Resolving Power at 1200 Å (120 nm)
- Low - 2,000 (0.6 Å or 60 pm, or a Doppler effect of 150 km/s)
- Medium - 20,000 (0.06 Å or 6 pm, 15 km/s)
- High - 100,000 (0.012 Å or 1.2 pm, 3 km/s)
A technical description of the construction and operation of the GHRS can be found in NASA technical report CP-2244.[2]
References
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