Astronomy Picture of the Day: 03/01/2026
- Katherine Miller
- Jan 3
- 3 min read
Object Name: MilkyWay Arch
Copyright: Nilesh Choithramani
Location: Kanyaka Station, South Australia
Skill level: Intermediate (2-4 years)
Image Title
Kanyaka under the Stars
Artists' statement
Nilesh Choithramani says, "Last month (October 2025), under the pristine dark skies of South Australia’s outback, the Kanyaka station ruins offered a rare meeting point between human history and cosmic time. From this remote pastoral settlement, abandoned more than a century ago, the full arch of the Milky Way rose cleanly above the stone walls — uninterrupted by light pollution and illuminated by a subtle band of atmospheric airglow stretching across the horizon.
This ultra-wide panorama captures not only the structure of our own galaxy but also several distant neighbors. On the far right, the faint smudge of Andromeda appears just above the treeline, while Comet Swan R2 registers as a compact green glow perched above the Milky Way’s spiral.
In a place where the landscape holds the memory of early settlers, the sky tells a story far older — a reminder that even the most remote human footprints sit beneath a universe that has been evolving for billions of years."
How This Image Was Captured
Gear used
Sony A7 III (Ha Mod)
Tamron 16-30mm f/2.8
MSM Nomad Star Tracker
Exposure details
Foreground - 11 x 30mm f/3.5 121s ISO 1600,
Sky - 24 x 30 mm f/3.5 30s ISO6400
Processing notes
"I panned across from the southern horizon, starting from where the Magellanic Clouds were, till due north, close to where the Andromeda galaxy rises above the horizon, covering a little over 180 degree sweep. Individual frames for both the sky and the foreground were captured from the same spot. I additionally used a star tracker to capture the images of the sky. Images were pano-merged using the PTGUI app, and final edits were done in Photoshop."
Exploring The Milky Way
The Milky Way arch is the broad, luminous band of our home galaxy seen curving across the night sky, created by our edge-on view through the dense stellar disc of the Milky Way. What appears as a smooth glow to the naked eye is actually the combined light of hundreds of billions of stars, interwoven with dark lanes of interstellar dust that block and scatter starlight. From dark southern skies, the arch stretches from horizon to horizon, forming one of the most recognisable and awe-inspiring structures in night sky photography.
The brightest region of the arch lies toward the Galactic Centre, located in the direction of Sagittarius, some 26,000 light-years away. This area is rich in nebulae, star clusters, and dense molecular clouds, and it surrounds the supermassive black hole Sagittarius A*. The dark rifts cutting through the arch — often called the Great Rift — are vast clouds of cold dust and gas that mark regions where future stars will eventually form.
What makes the Milky Way arch particularly special is its seasonal nature. It is best seen from the Southern Hemisphere during the cooler months, when the galactic core rises high above the horizon after sunset. Capturing the full arc requires both careful planning and truly dark skies, making images of the Milky Way arch a celebration not just of our galaxy, but of the fragile darkness needed to see it at all.
Behind the Selection
This image was selected for its creative use of foreground elements that naturally lead the eye into the vast Milky Way arch overhead. The composition highlights the dramatic scale of our home galaxy while drawing attention to distant galaxies, creating a striking juxtaposition between our place within the Milky Way and the countless other galaxies beyond it. The result is an image that blends strong visual storytelling with a powerful sense of cosmic perspective.
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