The Indo-Gangetic Plain (IGP) region is one of the most densely populated regions in the World, but ground-based observations of air pollutants are highly limited in this region. Here, surface ozone observations made during ...

The impacts of escalating emissions of air pollutants are now one of South Asia's most pressing environmental concerns, particularly in Northern India. Additionally, the adjacent Himalayas lead to the confinement of these ...

The Delta-Scuti(?) variables, 20 Cvn, has been observed photoelectrically on two nights, JD 2446586 and JD 2446949, in U, B and V filters. The average amplitudes on these nights come out to be 0.13 mag and 0.08 mag with ...

The Indo-Gangetic basin is one of the biggest, most populated and polluted regions in the world. Satellite- and ground-based data show strong seasonal variability of aerosol loading with a maximum during pre-monsoon ...

The eclipsing binary MM Cas (alpha_1980 = 0h53.4m and delta_1980 = +54d20.5') was observed photoelectrically during 13 nights from December 1980 to September 1982 with the 104 cm telescope of the Uttar Pradesh State ...

Wolf-Rayet stars from a distinct class of stellar objects and have spectra in which emission lines of either nitrogen and helium predominate (WN) or else emission lines of helium, carbon and oxygen predominate (WC). ...

Photoelectric photometry (UBV) of Comet P/Halley performed on April 29, 1986 has been presented. The observations show short-term variability in light. The amplitude of variability in U filter is much more than in B and V filters.

Air pollution resulting from rapid urbanization and associated human activities in the Kathmandu Valley of Nepal has been leading to serious public health concerns over the past 2 decades. These concerns led to a multinational ...

Exposure to particulate matter less than 2.5 µm in diameter (PM2.5) is a cause of concern in cities and major emission regions of northern India. An intensive field campaign involving the states of Punjab, Haryana and Delhi ...

We have calculated the equivalent widths of the vibration-rotation bands of SiH and MgH molecules for a possible detection in the sunspot spectrum. Five different models were utilized and the results obtained with and ...