The Observatory
contains a Zeiss coude refractor of 15 cm aperture and 225 cm focal
length, built in Jena, Germany. This coude telescope design provides
a fixed eyepiece position whatever the telescope pointing may be,
and enables relatively large auxiliary instruments such as photometers
and spectrometers to be mounted on the telescope. The telescope is
housed in a motorized Observa-Dome of 3-meter diameter, provided by
MlT's Lincoln Laboratory.
The telescope
is used on a daily basis for patrol observations of magnetic structures,
such as sunspots, in the sun's atmosphere. During these observations,
the sun's image is projected on a large screen. Visitors are encouraged
to drop by to view the sun in the morning around 8 - 9am, when these
observations are usually made. The telescope will also be integrated
into the regular school group visits to the Marine Sciences Laboratory.
Research
projects at EPSO are planned to begin this fall. They will include
measurements of heat flow variations at the sun's surface, and of
intense electric fields in huge solar eruptions called flares. Some
of these observations will be carried out in support of CRI solar
observing programs from NASA spacecraft, and also with the much larger
solar telescopes of the National Solar Observatory stations at Kitt
Peak, Arizona, and Sacramento Peak, New Mexico.
EPSO
will also be open by prior arrangement for evening viewing of the
Moon and planets, on Friday evenings. The facility is available to
K-12 groups as part of MSC Tours on weekdays by prior arrangement.