The Rig Veda described both a solar and a luni-solar calendrical scheme. Once the precision of Rig Vedic astronomy is recognized, the Great Cosmis Cycles of ancient India can be interpreted meaningfully.

Coronal mass ejections or CMEs are well known as the drivers of enhanced interplanetary and geomagnetic activity. They are large expulsions of material from the Sun, which travel into the interplanetary (IP) medium. ...

Equivalent widths for a new lines of the first overtone band of carbon monoxide have been calculated in the solar infrared spectrum for five facular and two photospheric models. The calculations show a decrease in equilavent ...

Two CCD imaging camera systems acquired from Photometrics USA have been installed at the Cassegrain focus of 1 meter Uttar Pradesh State Observatory (UPSO) telescope. A 384 x 576 pixels Thomson CCD based camera system has ...

CCD imaging observations of Jupiter were carried out, from the desert location of Jaisalmer in Rajasthan, during the period of its collision with the comet Shoemaker-Levy 9. A Celestron 8 telescope was used with a Lynx PC ...

The observations of a limb prominence (N 26; E 90) were carried out with the help of a Peltier cooled CCD system. In the beginning the prominence was observed as quiescent prominence with compact helical structure. Rise, ...

CCD observations of the mutual events of the Galilean satellites of Jupiter from the Vainu Bappu Observatory during 1997 are presented. The derived times of close approach of the geometric centers of the satellites (satellite ...

CCD photometric observations of open cluster NGC 7419 in UBVRI passbands have been made down to V = 19.5 mag. Reddening across the cluster region is found to be variable. The mean visual absorption of 5.30 mag and a distance ...

CCD photometry of the open cluster King 10 has been carried out in the UBVRI photometric passbands down to V of about 19.5 mag. The reddening for the cluster region is found to be variable. A distance of 3.2 kpc has been ...