{
"$type": "site.standard.document",
"bskyPostRef": {
"cid": "bafyreicijrjoiy6bi4lvz6z4q55q72qjp2hfg5fjxiyhw6d7birsty2qmm",
"uri": "at://did:plc:mda44tmq6fi7iblnineqf5r4/app.bsky.feed.post/3mljjffsxtcb2"
},
"coverImage": {
"$type": "blob",
"ref": {
"$link": "bafkreifpee455frmynbpnhe7qziliyzrhtb2zuu4bziaymumjzge6co5va"
},
"mimeType": "image/jpeg",
"size": 141226
},
"description": "Over 24 hours of integration on a large spiral in the Virgo Cluster — and a short story about a civilization that lives inside the bright heart of M90, harvests spores from the radio winds, and discovers too late what their elders have become.",
"path": "/m90-the-violet-harvest/",
"publishedAt": "2026-05-10T19:42:52.000Z",
"site": "https://macobservatory.com",
"tags": [
"Celestron EdgeHD 11″",
"ZWO ASI2600MC Pro",
"10Micron GM1000 HPS",
"Celestron 0.7X Reducer EdgeHD 1100",
"ZWO EFW 7 × 36mm",
"ZWO OAG-L",
"Pegasus Astro Ultimate Powerbox 2",
"Chroma LRGB 36mm",
"Chroma Narrowband 3nm 36mm",
"AstroBin"
],
"textContent": "Humans, when they finally learned to number the sky, called our home M90. They marked its bright center as a nucleus, as though it were a point on a chart, a word to place beside a photograph. To us, it was never a place. It was the First Pattern, a pressure in the mind passed from clutch to clutch, telling us when to feed, when to flee, and when to enter the violet storm.\n\nWe had no mouths, so we never lied aloud. We moved through the bright heart on eight hooked limbs, our black shells polished by radiation, our thoughts braided so tightly that one fear could turn a thousand bodies. Above and below the core rose the twin radio winds, pale rivers of charged fire thrown out long before our oldest memory. Every cycle we entered those rivers to harvest the blue spores that grew where old suns had died.\n\nA soft body would have been cooked, crushed, or peeled apart atom by atom. We were not soft. Our limbs could pick one grain from a magnetic filament while our shells rang under the storm. The elders taught us the current maps by touch and thought. Cross the sheared field at the seventh knot. Fold your limbs when the wind brightens. Never chase food into the dark gap, for the dark gap is where the dead think.\n\nThen the outer sky began to thin. The great spiral was being stripped by an invisible sea, its breath torn away into a tail longer than any migration. The First Pattern would fade. The spores would die. We gathered for the last harvest and found the elders waiting in the forbidden dark gap. They had not died there. They had become the signal. The radio lobes were not the storm we crossed. They were our people, shouting without sound across the void, trying for ages to warn us that **the only food left was memory.**\n\n* * *\n\nCapture Details\n\nTotal Integration\n24h 35m\n\nIntegration per Filter\nLum/Clear — 13h 20m (160 × 300″)\nRed — 3h 45m (45 × 300″)\nGreen — 3h 45m (45 × 300″)\nBlue — 3h 45m (45 × 300″)\n\nEquipment\nTelescope — Celestron EdgeHD 11″\nCamera — ZWO ASI2600MC Pro\nMount — 10Micron GM1000 HPS\nReducer — Celestron 0.7X Reducer EdgeHD 1100\nFocuser — MoonLite CSL 2.5″ Large Format Crayford SCT/RC\nFilter Wheel — ZWO EFW 7 × 36mm\nOAG — ZWO OAG-L\nPower — Pegasus Astro Ultimate Powerbox 2\nFlat Panel — DeepSkyDad Observatory Flat Panel (OFP2)\n\nFilters\nChroma LRGB 36mm — Lum, Red, Green, Blue\nChroma Narrowband 3nm 36mm — H-alpha, OIII, SII\n\nSoftware\nPleiades Astrophoto PixInsight · Adobe Photoshop\nRussell Croman — BlurXTerminator · NoiseXTerminator · StarXTerminator\n\nLocation\nDSP Remote Observatory · Animas, NM · Bortle 1\n\nView the full-resolution image and technical details on AstroBin.",
"title": "M90: The Violet Harvest",
"updatedAt": "2026-05-10T19:42:52.384Z"
}