Milky Way over Lake Chandrataal - Photography Techniques

Scroll to learn how to create images of the night sky like this.

Have you seen our home galaxy, the Milky Way? Here it is rising over Lake Chandrataal. We can see the core of the Milky Way peeking out from behind the mountain on the right. When it is very dark, our eyes can see the galaxy as if someone had smeared faint white paint across a large swath of the night sky. But our cameras can see much much more. This image was taken under Bortle class 1 skies - the darkest skies possible here on Earth, making the details and colours in the night sky pop. Learn more about the Bortle scale, the 500-Rule, stacking and more by swiping the carousel.

The final picture is a two image blend. The foreground with the lake and mountains was taken after sunset before it became too dark. A setting moon at the time cast its silvery light illuminating the scene. Captured on a Canon 6DMark2 at 18mm, f/14, ISO 400, 15 secs. The image of the Milky Way is a stack of 10 images taken later after the moon set. Captured on a Canon 6DMark2 at 14mm, f/3.2, ISO 5000, 30 secs.

Do you like images of the night sky?

Question: What is the maximum shutter duration you would choose  to shoot the night sky with a 24mm full-frame equivalent lens using the 500-Rule? Bonus points if you also provide the answer using the NPF-Rule!