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Westmont Observatory

Get Spaced Out at Monthly Star Party

Westmont’s powerful Keck Telescope takes aim at Saturn and a supermoon at this month’s free public stargazing event on Friday, Oct. 18, beginning about 7 p.m. and lasting several hours at the Westmont Observatory. The college hosts a monthly star party on the third Friday of each month in conjunction with the Santa Barbara Astronomical Unit.

The ringed gas giant Saturn will be in the southeastern sky which will be dominated by a full moon. “This month’s supermoon has been dubbed the Hunter’s moon,” says Jen Ito, Westmont assistant professor of physics. “While this is not a scientific term, it is still a neat way to distinguish between the supermoons we have each year. The supermoon is happening on Thursday so if the moon looks particularly larger that evening, you know why.”

Another exciting expected guest is the comet C/2023 A3 (Tsuchinshan-ATLAS), which has started to become more visible this week. “If you look just south of west after the sun sets, you might be able to catch a glimpse of this long-period comet,” Ito says. “It’s predicted to come back around in 200 years or so, so seeing this comet is a once-in-a-lifetime opportunity.”

KECK TELESCOPE

A Powerful Instrument for Astronomical Observations at Westmont

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The Keck Telescope, a computer-controlled 24-inch F/8 Cassegrain reflector with Ritchey-Chretien optics (the same configuration used on the Hubble Space Telescope), has served as a versatile instrument for Westmont faculty and students for over a decade and remains one of the most powerful telescopes on the California Central Coast. Not only has the device been used for a variety of research projects and coursework, but it has also been a source of awe and inspiration for the greater Santa Barbara community.

The Westmont Observatory also serves as one of the free, public observing sites for the Santa Barbara Astronomical Unit (SBAU) every third Friday of the month. In particular, the Keck Telescope has provided clearer and more dramatic demonstrations of the splendor of God’s creation to members of the broader Santa Barbara community, including young children and students in local schools.

“The observatory remains a signature component of the Westmont campus and a favorite among our current students and returning alumni,” says Professor Bob Haring-Kaye from the Department of Physics and Engineering. “We are excited to see how this facility will continue to be used to provide outstanding educational experiences, including meaningful research experiences, to our students and point to the artistic grandeur of the Creator.”

Three students walking in front of the Carroll Observatory.

The Keck Telescope

History

The original Westmont College Observatory was dedicated on June 1, 1957. (It has since been replaced by a new observatory in 2010.) The main dome featured a 16.5-inch reflector which was made and donated by George Carroll. The scope was equipped for spectroscopic and micrometric work, whose introduction originally made national news.

More recently, the original telescope caught the limelight as a group of amateur astronomers from the Santa Barbara Astronomy group observed the rotation of Mars with a CCD camera (Astronomy Magazine, Feb. 1989, p. 92.) These were some of the very first CCD images of Mars taken by amateurs.