Michael W. Dean (@freedomfeens) header
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Space, cats, and self-defense🦖 Music: https://xitter.gq/t.co/0g4wzbh9eH My space pix: https://xitter.gq/t.co/pDhowzGvco

Joined April 2007
Photo by Michael W. Dean (@freedomfeens)Photo by Michael W. Dean (@freedomfeens)Photo by Michael W. Dean (@freedomfeens)Photo by Michael W. Dean (@freedomfeens)Photo by Michael W. Dean (@freedomfeens)Photo by Michael W. Dean (@freedomfeens)Photo by Michael W. Dean (@freedomfeens)Photo by Michael W. Dean (@freedomfeens)Photo by Michael W. Dean (@freedomfeens)Photo by Michael W. Dean (@freedomfeens)
Michael W. Dean retweeted
🌖 Halloween morning, October 31, 2026: the waning gibbous Moon was still riding high in the southwest at dawn, drifting through Gemini about 8° from Castor and Pollux, with 69% of its face lit. Our Moon is around 367,750 km from Earth's center right now, only three days past its closest point this month, so it still looks a little bigger than usual. 🌖🔭Through a telescope you'll spot Copernicus, Kepler and Aristarchus glowing on the bright side, Tycho and Clavius down south, and the crater trio Theophilus, Cyrillus and Catharina sitting right on the shadow line where lunar sunset is creeping in. 📷 Shot handheld with my Sony A7RV camera, the 70-200mm f/4 lens and the 2x teleconverter on a photo tripod. #Moonphase
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Michael W. Dean retweeted
🌌✨ Tonight, high in the northeast, two jewel boxes of #stars hang side by side between the W of Cassiopeia and the hero Perseus, NGC 869 and NGC 884, known together as h + χ Persei, the Double Cluster, about 7,500 light-years away. 💎 Each cluster holds hundreds of young suns packed into a patch about as wide as the Full Moon, mostly hot blue-white stars, with a few orange giants glowing among them like embers left in a fire. Seen together, they look like twin cities of light shining across a dark valley, and people have wondered at them since the astronomers of ancient Greece first noted this soft glow in the sky. 🔭 No telescope is needed to begin. Under a dark sky, far from street lights, the eye finds the W of Cassiopeia, follows it toward Perseus, and catches a small misty smudge that seems to split into two, and that first moment of recognition stays with many beginners for years. Binoculars turn the mist into two glittering knots of stars, close to what this wide image shows, a perfect object for #stargazing even on nights when the Moon is bright. 👶 By cosmic standards, these stars are babies, only about 14 million years old, born long after the dinosaurs vanished and when apes still moved through Miocene forests, before any ancestor of ours had stood upright. The biggest of them burn so fast that they will explode as supernovae within a few million years, brilliant lives that are short because they are brilliant. 🕰️ The light reaching our eyes tonight left the clusters about 7,500 years ago, in the Neolithic, when the first farmers of Central Europe built long timber houses, sowed wheat and herded cattle, and in Mesopotamia villages learned to lead river water onto their fields, in a world without writing, without cities, without a single name history would remember. 🦣 Earth itself looked strangely different, because the Sahara was green with lakes and grasslands, the great ice sheets had melted away, and on a remote Arctic island the last woolly mammoths still walked beneath a sky that already carried this light. #etexists 👽 Our first radio signals have travelled for about a century, so they still need some 7,400 years to reach the Double Cluster, where any planets around such young stars would still be hot, restless worlds, far too young for life. Our voices will arrive anyway, drifting past blue giants and dying red supergiants, carrying our news, our wars and our laughter into a place that cannot yet answer. 🎶💃🕺 Within that noise there would be music, rhythm made from chaos, songs written to outlast their singers, and the steady sign of a species that kept looking upward while still standing in the dust. #WeWereHere By the time the echo arrives, humanity may have changed as much as we have changed since those first farmers, and our signals will remain as the message of a civilization that was young, loud, curious and still deciding what it wanted to become. #DeepTime #CosmicEchoes Perhaps the quiet lesson of these twin clusters is that the brightest fires burn fastest, and that a young civilization able to understand this might learn to shine with wisdom, so that its light lasts a little longer than a supernova. Clear Skies 🌠 #DoubleCluster #astrophotography -- 📷 Image: Takahashi FSQ-106ED telescope, Takahashi NJP-JPZ mount, Nikon D3100 camera, remote cord, image by Panagiotis Xipteras, Germany
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Michael W. Dean retweeted
Well, this was cool. The moon was right on top of the Spaghetti Nebula last night, so I picked a different target. This is SH2-200, a planetary in Cassiopia. This was nice as with this set up Planetary nebulae are normally too small to catch. Here is 33 X 600 Sec. Will add more as I can.
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M27 Dumbbell Nebula “Back in Time” I’ve re-processed some old OSC data. Back then, I didn’t have as much experience as I do now. Plus, the data was collected in a light polluted area (bright suburban night sky). I also didn’t have an Ocal Pro yet to collimate my Newtonian telescope, which is really a lot easier than collimating with a regular laser collimator. A 3-hour exposure time is actually too short for this planetary nebula. With a longer exposure time, this object would stand out better: expect at least 6 hours in a light-polluted area. You would then at least be able to see more of its outer shell. Image Details: Total integration time: 3 hours Camera settings: Gain 100, 60 sec, -10°C, no offset Data taken in the night of 05/09/2021 - 06/09/2021 (European date format) => Bortle Class 6 SQM-L: 18.87 (average) Used Equipment: Telescope: Sky-Watcher Explorer BD N200/1000 Mount: iOptron CEM60 on iOptron tri-pier Camera: ZWO ASI533 MC Pro (with ZWO EFW Mini) Filter: ZWO UV/IR Cut Off 1.25" Data aquisition&Telescope Control: ZWO ASIair Gen.1 No guiding! Clear Skies everyone!
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RCW 131 The War and Peace Nebula or the Lobster Nebula RCW 131 (also known as NGC 6357) is known by the two nicknames mentioned above. This diffuse nebula is located in the southern constellation of Scorpius, approximately 5,500 light-years from Earth. Data: Telescope Live Processing: Beatrice Heinze I stacked the SHO data in Astro Pixel Processor and performed the processing in PixInsight. Total integration time: 5 hours and 50 minutes. Telescope: Planewave CDK24, a 24 inch (61cm) telescope with Corrected Dall Kirkham optical design Camera: QHY 600M (with Astrodon filters) Location: Rio Hurtado valley, Chile (Southern Hemisphere) => Bortle scale 1. This is my third attempt at processing this nebula, as there were errors in the data that needed to be corrected. That’s what astrophotography is all about: fixing errors, which then results in a beautiful astrophotograph! I’m still not entirely satisfied with the result, but we’re not giving up ;-). On to the fourth attempt! Clear Skies!
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Testing focus on sheep across the street.
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Michael W. Dean retweeted
AstroBin's Image of the Day: "ISS Through the Haze — MolotilkaFFT's First Light on the Space Station" by Khisamutdinov Maksim astrobin.com/psw5fg/ #astrophotography
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The Sun brings life. My shot of solar prominences in Hydrogen-alpha. astrobin.com/k25g01/
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NGC 6337: The Ghostly Cheerio Nebula It's a planetary nebula located in the southern constellation of Scorpius. The Ghostly Cheerio Nebula (also known as the Cheerio Nebula) gets its nickname from the fact that it resembles the well-known breakfast cereal brand. Yesterday, I mentioned that I recently started Adam Block’s “Deepsky Academy” course. => xitter.gq/BeatriceHeinze/status/… I processed this planetary nebula, NGC 6337, in PixInsight following the instructions in this course, and I’m now working on the “Workflow for Nebulae” chapter. The SHO data for this image was provided by Adam Block. For a first attempt, I’m already fairly satisfied with the result, but I’m not quite there yet. But that’s what astrophotography is all about, among other things: constantly improving yourself in the pursuit of perfection! Clear Skies! See also ALT text below👇
M22: The Great Sagittarius Globular Cluster Messier 22 (M22) is a globular cluster in the constellation Sagittarius, located about 10,000 light-years from Earth. I recently started taking Adam Block’s DeepSky Academy course. I highly recommend it. This astrophotograph is the result of the “Stars and Star Clusters” workflow from that course. I stacked the RGB data provided by Adam Block and processed it in PixInsight. Lifelong learning is very important to me, and I enjoy staying up to date on the latest astrophotography processing techniques and in all sorts of other areas. The desire to keep learning is like fuel for my brain. How about you? Do you enjoy taking courses (whether related to astrophotography or not)? Maybe you’re taking one right now? Clear Skies!
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I don't usually love bands with costumes but I love HENGE. New song from them, "BRAINS." It's about BRAINS. And it look like lyrics are correct if you hit CC on the video. youtube.com/watch?v=Vs9pvPSo…
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My shot of NGC1444 star cluster, for 125 minutes. Tech specs: astrobin.com/joqrln/
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Michael W. Dean retweeted
Moon scene from Aalen 🇩🇪 #moonlight
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Michael W. Dean retweeted
AstroBin's Image of the Day: "vdB 152 - Wolf's Cave Nebula" by Sebastien Kuenlin astrobin.com/qhe4d3/ #astrophotography
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Michael W. Dean retweeted
I added data from the summer.
The Helix Nebula watching you masticate.
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First camera I used as a kid in the 70s: We had an old (even for then) Kodak Brownie Holiday box camera when I was a kid. Had to hand wind film between each shot. Took 127 film rolls, not a cartridge. I used it a few times, got film developed at the drug store. Took a week. Camera was square, brown Bakelite plastic, about 5x5x5 inches. (big for a camera now)
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Michael W. Dean retweeted
I got another 90 minutes of data gathering time this past weekend on the Fish Head Nebula (NGC896, on the left) and the Heart Nebula (IC1895, on the right). They are both located between 6,000 and 7,000 light years away. They look right next to each other but the Fish Head Nebula is 1,000 light years closer to us than the Heart Nebula. This puts the total exposure time of this area of the Cosmos at close to 3 hours using my 85mm refractor telescope and Canon DSLR camera in a severely light polluted Bortle 7 sky.
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