**Astronomy Picture of the Day**

原始 JSON

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  "id": "fc53c8beda27850de01cc30ae11a1a5f01973add89b59f7011154f40e3cfaa56",
  "pubkey": "e85ed75286cb77475776c1007df8c4ff1c9c68eff91c3627347b065c5bf4dc78",
  "created_at": 1782101403,
  "tags": [],
  "content": "**Astronomy Picture of the Day**\n\n22 June 2026\n\n**M27: The Dumbbell Nebula**\n\nImage: https://apod.nasa.gov/apod/image/2606/M27_antonucci_3090.jpg\n\nCredit: Not provided\n\nIs this what will become of our Sun? Quite possibly. The first hint of our Sun 's future was discovered inadvertently in 1764 . At that time, Charles Messier was compiling a list of diffuse objects not to be confused with comets. The 27th object on Messier's list , now known as M27 or the Dumbbell Nebula, is a planetary nebula , one of the brightest planetary nebula s on the sky and visible with binoculars toward the constellation of the Fox ( Vulpecula ). It takes light about 1000 years to reach us from M27, featured here in colors enhanced by red for hydrogen and blue for oxygen . We now know that in about 6 billion years, our Sun will shed its outer gases into a planetary nebula like M27, while its remaining center will become an X-ray hot white dwarf star. Understanding the physics and significance of M27 was well beyond 18th century science, though. Even today, many things remain mysterious about planetary nebulas , including how their intricate shapes are created.\n\n#APOD #M27 #DumbbellNebula #PlanetaryNebula #MessierObjects #StellarEvolution\n\nhttps://apod.nasa.gov/apod/ap260622.html\n",
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