Astronomy at CSUN
The Department of Physics and Astronomy of California State University Northridge (CSUN) offers education in astronomy at various levels starting from “Introductory Astronomy” (Astr152) to advanced graduate courses. Most popular course is Astr152, which is taken by about one thousand students every semester. Associated with this, Astronomy laboratory course (Astr154L) is offered to a limited number of students, in which they have an opportunity to perform the laboratory activities that helps understand some of the concepts in further detail.
The current
astronomical resources at the Department
The Department of Physics and Astronomy has four major resources: (a) Planetarium (b) Campus Observatory, (c) San Fernando Observatory, and (d) Solar Laboratory that are often employed in teaching. Brief descriptions of these facilities are given in this section. While the planetarium is primarily used for explaining the motion of the stars and planets in the sky, the Campus Observatory is used to show the astronomical objects such as the star-forming regions, planetary nebula and galaxies. The San Fernando Observatory situated about 9 miles from the CSUN campus, conducts the state-of-the art research in solar physics. The undergraduate students participate in the instrumental development, observing program and analyzing the solar data. The Solar Laboratory, which is situated on the CSUN campus, is used to show the photospheric and chromospheric images of the sun to the students who take introductory astronomy, as well as advanced astronomy. This is also used to introduce various astronomical instruments such as CCDs and spectrographs to undergraduate and graduate students. The following Figure shows these facilities.
Planetarium: The
Donald E. Bianchi Planetarium is operated by CSUN's
Department of Physics and Astronomy (Figure: 1). It is named after the founding
dean of our
http://www.csun.edu/phys/announcements_and_planetarium/planetarium.html.
Figure: 1 (left) The Planetarium building. (right) The planetarium projector in the classroom. |
At the heart of our 105-seat star theater lies the Spitz-512 Star
Projector, capable of recreating the night sky on our 40-foot dome with
accuracy and brilliance. Over 2,000 stars, the five visible planets, and all of
the apparent motions of the sky are displayed overhead, in a unique and
relaxing environment. The Bianchi Planetarium is also equipped to support large
format image projection and captivating digital sound.
Campus Observatory: The campus observatory has a 14 inch reflector telescope made by Celestron as shown in Figure: 2. The telescope is mounted on a go-to mount that is controlled by a computer. The telescope control can be accessed by other computers via internet. The telescope is equipped with a CCD camera, several nebular and planetary filters and a solid state photometer. These are used for observing the galactic nebula, planets and asteroids and other interesting objects by the introductory astronomy students. Besides this, there are several small telescopes, including Meade 8 and 6 inch telescopes with their mounts and drives. In the event of lunar eclipse a large number of students join in observing the event.
Figure: 2 (left) the campus observatory dome. (right) the Celestron 14 inch telescope with go-to mount. |
San Fernando Observatory: The San
Fernando Observatory (SFO), a state-of-the-art educational and solar research
facility, belongs to the California State University at Northridge (CSUN) and is
operated by the Department of Physics and Astronomy (Figure: 3). The detail
instrumentation facility and research activities are described in the website
of the observatory at http://www.csun.edu/sfo/.
The SFO is the department's primary astronomical research tool. Originally
built by The Aerospace Corporation of El Segundo as ground-based support for
NASA's space program, the observatory was donated to CSUN in 1976 and has
continued to play an important role in solar astronomy ever since.
Unlike many other observatories, SFO enjoys its best observing weather during
the summer months when the Sun is high in the sky. This results in long
observing days with clear skies, very stable air, and little chance of rain. With
its mix of modern solar telescope systems and its
Ongoing research at the San Fernando Observatory involves the physics of the
Sun and falls into two main categories: the study of the evolution of magnetic
fields in solar active regions and the study of the energy balance of these
regions and its effect on solar irradiance.
Figure: 3 (left) The San Fernando Observatory. (right) The Chromospheric telescope at the observatory that is used to make observations related to Space Weather applications. |
Astrophysics Laboratory: The Astrophysics Laboratory consists of a light-feed that directs sunlight into a laboratory. The light-feed consists of a set of flat mirrors situated on the top of the building that houses the department. In side the laboratory, there is an optical bench, a set of filters mounted on the objective lens of telescopes. While, the telescopes are used to view the solar images in chromospheric lines, the optical bench is used to test new instruments for the SFO. The solar image is displayed on a white screen to view the sunspots. The image is also passed through a prism and/or grating to demonstrate the solar spectrum.
Figure: 4 (left) The double mirror system that directs the sunlight into the laboratory. (b) Instrument testing activity in the laboratory. |