This image represents the star movement in the Southern Sky amidst the Galactic Core region. As it is Kolkata, light pollution is very high with Bortle class- 8, we can’t find the Milky Way in the night skies. In the Southern Hemisphere the stars being way below the horizon we can't find the Circumpolar lines as in the Northern Hemisphere. This is due to the Earth's axis of rotation, which is tilted in relation to its orbit around the Sun. The stars near the North Pole appear to always remain above the horizon, creating circular paths and in the Southern Hemisphere, nearer the Celestial Equator we get long star trails across the sky.
p.s.- Straight line with red blinks are a flyby flight.

Shot on: Samsung Galaxy M52
Tripod: Digitek DTR 550 LW

Stacked with 233 images
Shutter Speed: 10 sec. each
ISO: 100
Aperture: f/1.8
Focal Length: 28 mm.
Total Integration Time for imaging: 58 mins.
Post-Processing Software: Adobe Photoshop CC 2023, Adobe Lightroom Classic, StarStaX, Adobe Premiere Pro.