... The Hopkins Ultraviolet Telescope -(HUT) : This instrument is essentially an ultraviolet spectrometer with sensitivity from 1000 -- 3000 Angstroms. ...
... payload, a cluster of unique telescopes in the Shuttle's payload bay which will turn Endeavour into an ultraviolet observatory ... At 16:00 PST On March 3 the deepest Ultraviolet exposure over the largest field was taken. ...
... Star formation is often best manifested by bright H II regions.These are regions of hydrogen which have been ionized by ultraviolet photons which are emitted from massive stars (typically stars more than 20 times the mass of the Sun). ...
... The large number of massive stars now forming in M101 has made it an excellent case for study in the Ultraviolet, where faint extensions beyond the optical limit of the galaxy can be seen. ...
... This would greatly increase the blue and ultraviolet, QE of the device without sacrificing much QE in the red (if you make the CCD too thin, then long wavelength photons won't interact with the silicon at all). ...