Browsing Publications of Astronomical Society of India by Subject "Variable stars"

Now showing items 1-6 of 6

A high-speed two-star photometer

Venkat Rao, G (Astronomical Society of India, 1990-03)

Design and performance of a high-speed two-star photometer are presented in this paper. It is an ideal instrument for investigations of time variations of variable stars
Noter for the Observer

Prabhu, T. P (Astronomical Society of India, 1981-12)
Notes for the Observer

Prabhu, T. P (Astronomical Society of India, 1981-09)
Studies of classical novae and related objects

Kamath, U. S (Astronomical Society of India, 2000)

This thesis is based on studies of two classical novae - V1425 Aquilae (J H K photometry and optical spectroscopy) and V723 Cassiopeiae (J H K photometry) and a sample of symbiotic stars (J H K photometry and Circular ...
UPSO three channel fast photometer

Gupta, S. K; Sagar, R; Joshi, S; Ashoka, B. N; Babu, V. C; Seetha, S; Girish, V (Astronomical Society of India, 2001)

The design and performance of a modular portable three channel fast photometer is described. It can be disassembled as single individual channels such that the system can also be used as a single channel photometer. The ...
Variable stars in the old galactic cluster M67

Rajamohan, R; Bhattacharyya, J. C; Subramanian, V; Kuppuswamy, K (Astronomical Society of Indian, 1988-12)

Schmidt plates of the old open galactic cluster M67 were obtained on twelve nights to find the most probable variables in the cluster. The Sabattier technique was used to derive the magnitudes of the cluster members. The ...

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