|Home > Astronomy > Isaac Newton Telescope|
Isaac Newton Telescope
The Issac Newton Telescope (INT) has a 2.54-m diameter primary mirror. It uses a polar-disc/fork type of equatorial mount. Instruments can be mounted either at Cassegrain or Prime focus, offering the possibility to carry out both intermediate-low dispersion spectroscopy and wide-field imaging.
Detailed descriptions to operate the telescope and instruments can be found the in the instruments web pages and links therein.
Changing from WFC to IDS and vice-versa requires daytime instrument change followed with a discretionary-time night for technical checks. These are optimally scheduled over the semester. When WFC (mounted at Prime focus) or IDS (mounted at Cassegrain focus) are in use no other instrument option is available.
Information to apply for observing time can be found at Applying for Telescope Time.
For preparing and planning observations, read the information at Planning Observations.
Observing at INT
It is essential that INT observers have considerable end-to-end observing experience with medium-sized telescopes. As there is no Observing Support Assistant (OSA) at the INT, observers are responsible for all aspects of telescope and instrument operation during the night. INT visitor observers should then be familiarized with the instrument and telescope documentation as well as health and safety issues. A detailed introduction to the telescope and instrument is given by the INT Support Astronomers (SA), who about a month in advance of the observing run will contact the PI, to confirm the instrument configuration, discuss the observing plan, etc. The SA will be at the telescope from the afternoon until about midnight of the first day of the run and will be reachable at ORM Residencia during the whole first night of the run.
For any question do not hesitate to contact your INT SA, Instrument Specilist or INT Manager.
INT looking ahead
INT Brief History
|Top | Back|