> ## Content Index > Fetch the complete content index at: https://macobservatory.com/llms.txt > Use this file to discover other available public pages before exploring further. # On the Rim of NGC 3718 - URL: https://macobservatory.com/on-the-rim-of-ngc-3718/ - Published: 2026-04-20T15:32:22.000Z - Updated: 2026-04-20T15:32:22.000Z - Description: Over 45 hours of integration on the gravitationally warped spiral in Ursa Major — and a short story about a civilization watching its galaxy come undone, and discovering it was never alone. - Author: Andrew Burwell - Tags: Imaging I was born where the stars of our galaxy grow thin and patient, far out beyond the crowded brilliance of the inner worlds. From our observatories, NGC 3718 did not resemble the perfect spirals drawn in the oldest textbooks. It arched across the heavens like a vast, wounded sigil, bent into an impossible S, its bright heart split by a black river of dust. Beyond that scar hung the companion galaxy whose slow gravity had been pulling at us for ages, twisting our lanes of gas and stars until even children could see that the sky itself was being torn. We were an old civilization by then. We had mapped atoms, folded time into instruments, and written symphonies for particles no ear could hear. Yet all our powers could not persuade a galaxy to remain whole. The outer systems began to drift. Ancient constellations unraveled. The great central engines of our cities calculated the same verdict in ten thousand elegant forms. We would endure for a while, then fail. Not by war, nor famine, nor folly, but by the majestic indifference of celestial mechanics. It seemed to us a cruel thing that intelligence should bloom only to witness, with perfect clarity, the terms of its own extinction. In the final century, we turned our receivers outward and inward together. We searched the worlds of our own galaxy, hoping for survivors, allies, any other mind to answer the dark. What came back was stranger than hope. From the torn arms, from hidden planets circling quiet stars, from places our ships had never reached, came signals with the same mathematical sorrow and the same unbearable beauty. Different biologies. Different languages. Different senses. Yet every dying civilization had made the same discovery at the edge of knowledge. Life, wherever it appears, does not end by asking how it may be saved. It ends by asking whether it was alone. On the last night before our seas lifted into frost, I stood beneath the warped glow of the galactic core and understood the answer. We had never been alone, only distant. The galaxy had concealed us from one another until the very forces that destroyed it braided our final voices into one. We had believed NGC 3718 was being torn apart. In truth, it was being made to speak. And what it said, through all of us at once, was the oldest and grandest sentence in the universe. **I was here. So were we all.** --- Capture Details Total Integration 45h 50m Integration per Filter Lum/Clear — 23h 20m (280 × 300″) Red — 7h 30m (90 × 300″) Green — 7h 30m (90 × 300″) Blue — 7h 30m (90 × 300″) Equipment Telescope — [Celestron EdgeHD 11″](https://agenaastro.com/celestron-edgehd-1100-ota-91050-xlt.html?rfsn=7382607.4cfa63&ref=macobservatory.com) Camera — [ZWO ASI2600MC Pro](https://agenaastro.com/zwo-asi2600mc-pro-astronomy-camera-2025.html?rfsn=7382607.4cfa63&ref=macobservatory.com) Mount — [10Micron GM1000 HPS](https://www.deepspaceproducts.com/product/10micron-gm1000hps-equatorial-mount?ref=macobservatory.com) Reducer — [Celestron 0.7X Reducer EdgeHD 1100](https://agenaastro.com/celestron-7-x-reducer-lens-for-edgehd-1100-94241.html?rfsn=7382607.4cfa63&ref=macobservatory.com) Focuser — MoonLite CSL 2.5″ Large Format Crayford SCT/RC Filter Wheel — [ZWO EFW 7 × 36mm](https://agenaastro.com/zwo-efw-7-36mm-filter-wheel-for-36mm-unmounted-filters-2025.html?rfsn=7382607.4cfa63&ref=macobservatory.com) OAG — [ZWO OAG-L](https://agenaastro.com/zwo-large-off-axis-guider-for-full-frame-cameras-with-1-25-holder-m68-oag-l.html?rfsn=7382607.4cfa63&ref=macobservatory.com) Power — [Pegasus Astro Ultimate Powerbox 2](https://agenaastro.com/pegasus-astro-ultimate-power-box-v2.html?rfsn=7382607.4cfa63&ref=macobservatory.com) Flat Panel — DeepSkyDad Observatory Flat Panel (OFP2) Filters [Chroma LRGB 36mm](https://agenaastro.com/chroma-lgrb-imaging-filter-set-36mm-round-unmounted.html?rfsn=7382607.4cfa63&ref=macobservatory.com) — Lum, Red, Green, Blue [Chroma Narrowband 3nm 36mm](https://agenaastro.com/shop-by-brand/chroma-technologies/shopby/36mm%5Fround%5Funmounted.html?rfsn=7382607.4cfa63&ref=macobservatory.com) — H-alpha, OIII, SII Software Pleiades Astrophoto PixInsight · Adobe Photoshop Russell Croman — BlurXTerminator · NoiseXTerminator · StarXTerminator Location DSP Remote Observatory · Animas, NM · Bortle 1 View the full-resolution image and technical details on [AstroBin](https://app.astrobin.com/i/5qkv8j?ref=macobservatory.com).