Telescope Construction Workshop at Rabi Ammal College for Women, Thiruvarur
As part of the World Space Week celebrations in October 2022, CSTERC Techno Science LLP organized a two-day Telescope Construction Workshop at Rabi Ammal College for Women, Thiruvarur, bringing astronomy and telescope-making directly into the hands of students.
The workshop was inaugurated by Mr. Feroz Khan, Secretary & Correspondent, Rabi Ammal College for Women, Thiruvarur, who encouraged the students to actively participate in scientific and technological activities and make use of opportunities that connect classroom learning with practical experience.
Unlike a conventional astronomy awareness programme, the workshop was designed as an intensive, hands-on learning experience. Students were introduced not only to the working principles of an astronomical telescope but also to the various stages involved in actually building one.
From Components to a Working Telescope
Over the course of two packed days, the participants worked closely with the CSTERC resource persons and mentors to understand the construction and assembly of a functional telescope.
The students were guided through the preparation of the telescope tube assembly, optical components, mirrors, eyepiece arrangements and supporting mechanical structures. Every stage involved careful measurement, alignment and assembly. Rather than simply receiving a ready-made instrument, the students had the opportunity to understand how individual components come together to form a complete astronomical telescope.
Measurements played a crucial role throughout the workshop. Students learned how precision is important in determining the geometry and optical configuration of a telescope. They were introduced to practical considerations such as tube dimensions, optical alignment, positioning of components and the correct placement of the eyepiece.
With guidance from the CSTERC mentors, students measured, assembled, adjusted and tested the different components themselves. This approach transformed the workshop into a practical laboratory where concepts from physics, optics, mathematics and basic engineering came together.
The process also introduced students to an important idea in scientific practice: building scientific instruments requires patience, precision and repeated testing.
Learning by Building
One of the most valuable aspects of the programme was that students were not passive participants. They were directly involved in the construction process.
Working in groups, they handled the components, performed measurements, assembled the telescope structures and discussed the challenges they encountered during the process. The CSTERC resource persons supported them throughout the workshop, helping them understand the reasoning behind every stage rather than simply providing instructions.
This hands-on methodology helped students develop a deeper appreciation for the technology behind astronomical observations. A telescope, which may appear to be a simple instrument from the outside, became a much more meaningful object once the students understood the optical and mechanical principles involved in its construction.
The workshop also demonstrated how astronomy can serve as a powerful platform for STEM education, connecting theoretical knowledge with real-world engineering and scientific experimentation.
From the Workshop to the Night Sky
The most exciting moment came on the second day, when the students had the opportunity to put their newly assembled telescope to the test.
After completing the construction and making the necessary adjustments, the telescope was taken outdoors for astronomical observation. The students eagerly pointed their instruments towards the night sky and began exploring some of the most fascinating objects visible from Earth.
The Moon became one of the first and most rewarding targets. Students were able to observe its surface features through the telescope and connect what they had learned during the workshop with a real astronomical object in the sky.
The experience became even more exciting as they turned their attention towards the planets, including Saturn. Observing Saturn through an instrument that they had helped construct themselves created a unique sense of achievement. The planet was no longer merely an image seen in a textbook or on a screen—it became a real celestial object that the students could observe through an astronomical instrument they had built with their own hands.
For many participants, this was an unforgettable transition from learning about astronomy to experiencing astronomy.
Celebrating World Space Week Through Practical Science
The Telescope Construction Workshop at Rabi Ammal College for Women was a fitting part of the World Space Week 2022 celebrations. World Space Week provides an opportunity to celebrate the contribution of space science and technology to humanity, while inspiring young people to explore careers and opportunities in the space sector.
CSTERC’s approach was to take this celebration beyond lectures and awareness sessions by giving students an opportunity to build, experiment and observe.
The two-day programme demonstrated that astronomy education does not have to remain confined to theoretical lessons. With the right mentorship and resources, students can learn fundamental concepts of optics, mechanics and astronomy while simultaneously developing practical skills in measurement, fabrication, assembly and testing.
Inspiring the Next Generation of Telescope Makers
The workshop at Rabi Ammal College for Women became another important milestone in CSTERC’s journey of making astronomy and space science more accessible to students.
The real outcome of the programme was not simply the completion of a telescope. It was the experience of taking an idea, understanding its scientific principles, working with components, overcoming practical challenges and finally using the completed instrument to explore the universe.
From carefully measuring telescope components to looking at the Moon and Saturn through the finished instrument, the students experienced the complete journey of building a scientific instrument and using it for discovery.
The programme reflected CSTERC’s continuing vision of creating opportunities where young people can move from being consumers of scientific knowledge to becoming makers, experimenters and explorers.
The telescope they built was more than an optical instrument. For the students who participated, it became a gateway to the night sky—and perhaps, for some of them, the beginning of a much longer journey into astronomy, space science and technology.
