A total Solar eclipse occurred on February 16, 1980. A Solar eclipse occurs when the Moon passes between earth and the Sun, thereby totally or partially obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon’s apparent diameter is larger than the Sun, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across the surface of the Earth, while a partial solar eclipse will be visible over a region thousands of kilometers wide.
The telescope at Rangapur has been used for photoelectric observations of binary stars, peculiar stars, pulsating stars, star clusters and also for the spectroscopic study of binary stars and peculiar stars. The telescope is also used for obtaining scientific information on comets, planetary atmospheres and near Earth Asteroids. The department obtained two 12-inch telescopes from the UGC-SAP funds. These telescopes are being used by the students for their practicals and in their research projects. In addition, a 10 feet radio telescope operating at 10GHZ was installed at Japal-Rangapur Observatory in 1980 for conducting research on the Sun.
Date Of Cancellation:-16.02.1980.
Special Cover-Total Solar Eclipse, India-1980
Solar eclipse, February 1980
The delicately structured glow of the solar corona, or solar atmosphere, is seen during the February 6th 1980 total eclipse of the Sun. The corona is visible to the naked eye only during an eclipse.
The path of totality passed over India making it the first total solar eclipse of the century to be observed from India. In independent India, scientists, teachers and students from various research and educational institutions, universities and schools for the first time ever went about in large numbers to study so extensively the greatest spectacle nature offers the mankind with whatever equipments they could procure or make. While it is the corona of the Sun that is the most important entity of interest to the solar astronomer, visible for a very short duration of the totality, the impact of the event is not limited to the world of science alone. It is far reaching and multidimensional. The awareness a natural phenomenon and its scientific study generates is phenomenal. In that sense the Feb 16, 1980 eclipse was a great awakener post Independence that created an unprecedented excitement among persons from all walks of life. The path of totality fell over places in India such as Hubli, Raichur, Nalgonda and Konark etc.
Date Of Issue:-31.01.1981.