September 2026 smart telescope observing guide
Quick summary· AI-generated
This guide identifies the best deep-sky objects visible in September 2026 from both northern and southern hemispheres, including optimal observation dates based on lunar phases. Key targets include the Andromeda Galaxy and its satellite galaxies (M31, M32, M110) in the north, and NGC 253 (Sculptor Galaxy) paired with NGC 288 globular cluster in the south. The article provides a lunar calendar recommending observation during moonless nights for faint nebulae and galaxies, and references Vaonis' "Plan My Night" automation feature for scheduling observing sessions with smart telescopes.
Excerpt from Vaonis - Our travel journal
In the northern hemisphere, two iconic sights dominate the sky: the Andromeda Galaxy all night long, and the Pleiades in the second half of the night. The Summer Triangle is still widely visible. Late at night, Orion and its popular nebulae return. In the southern hemisphere, this is the last chance to enjoy the heart of the Milky Way in the early evening before it disappears for several months. In the second half of the night, the Magellanic Clouds take over.
September 2026 astronomical calendar
It is recommended to observe nebulae and galaxies when the Moon is not visible. Its brightness diminishes the darkness of the sky and reduces the quality of observations of faint and diffuse objects.
Refer to the following calendar for the best days this month.
September 4 - Last Quarter Moon
September 11 - New Moon
September 15 - The Orion Nebula returns to the morning sky
September 18 - First Quarter Moon
September 23 - September Equinox
September 26 - Full Moon
Celestial Scene of the Month
Northern sky
The Andromeda Galaxy Group
The Andromeda Galaxy (M31) anchors one of the most rewarding wide-field targets in the entire sky: a giant spiral galaxy captured together with its two brightest satellites, M32 and M110, in a single composition. At approximately 2.5 million light-years, M31 is the nearest major galaxy to the Milky Way and the most distant object visible to the naked eye. Together with the Milky Way, M32, M110, the Triangulum Galaxy (M33), and dozens of smaller dwarf galaxies, it forms the Local Group, our home galaxy cluster , making this one of the very few scenes in the sky where a genuinely physically associated group, not just objects sharing a line of sight, fits into one frame.
Southern sky
The Sculptor Galaxy NGC 288 Globular Cluster
The Sculptor Galaxy field pairs NGC 253, one of the brightest galaxies in the sky outside the Local Group, with the globular cluster NGC 288, lying roughly 1.8° to the south-southeast. This is a foreground-background pairing, not a physical association: NGC 288 belongs to our own galaxy's halo at roughly 28,000–29,000 light-years, while NGC 253 lies approximately 11.4 million light-years away, some 400 times more distant. The two share only a line of sight. The Sculptor Galaxy, is also nicknamed the Silver Coin or Silver Dollar Galaxy. NGC 288 is a loose, sparse globular cluster
"Plan my Night" of the month
Suggested observation program you can automate with "Plan My Night." Give each object as…
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