Optical observations of star clusters NGC 1513 and NGC 4147; white dwarf WD 1145$$+$$017 and K band imaging of star-forming region Sh 2-61 with the 3.6-m Devasthal optical telescope

The $UBVRI$ CCD photometric data of open star cluster NGC 1513 are obtained with the 3.6-m Indo-Belgian Devasthal optical telescope (DOT). Analyses GAIA EDR3 astrometric have identified 106 possible members. mean proper motion is estimated as $\mu_{\alpha}Cos{\delta}=1.29\pm0.02$ and $\mu_{\delta}=-3.74\pm0.02$ mas yr$^{-1}$. Estimated values reddening $E(B-V)$ distance to 0.65$\pm$0.03 mag 1.33$\pm$0.1 kpc respectively. An age $225\pm25$ Myr assigned by comparing theoretical isochrones deep observed sequence. Using observations taken DOT, galactic globular 4147 $18.2\pm0.2$ Kpc $14\pm2$ Gyr planetary transit around white dwarf WD1145+017 $K$-band imaging star-forming region Sharpless Sh 2-61 demonstrate observing capability DOT. Optical near-infrared celestial objects events being carried out routinely They indicate that performance at par those other similar telescopes located elsewhere in world. We therefore state this facility augurs well for multi-wavelength astronomy including study astrophysical jets.