The horizontal streak is indeed undesirable in the otherwise beautiful image. What is the exposure duration? Any idea why stars tend to have different shades from blue to white?

Thanks Arun, this is a 90 min exposure. The different colors of the stars basically indicate the temperature of the stars. Red stars being cooler than yellow stars and yellow stars cooler than Blue ones

You guys have become champions of star trail images . Beautiful image.

beautiful Harsha, amazing execution. love the blue and white streaks.
A little space to the left and right of the tree might help IMO

The horizontal streak notwithstanding, this is a fabulous image. Perhaps a little more room on left and a tad better illuminated tree would have been even nicer.

Excellent image Harsha - I can understand your frustration about the flight May be these are the cases where cloning is ethical (?)
Couple of things would have improved this further in my view - first, I would leave a little more space around the tree. As presented it appears a little tight. I **guess** gentle light painting using a blue LED torch light on tree would have added to the frame keeping the mood of the night intact.

I just loved it from the very first day you shared. Brilliant effort, though I would have loved to have the tree lit a bit with a blue LED.