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Galaxy M82 |
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About This Photograph
M82 is a spiral galaxy seen nearly edge-on from our vantage point. It is known as a "starburst galaxy" due to its very high rate of star formation, likely triggered by gravitational disturbance from nearby galaxy M82. It also has a dramatic bipolar outflow of ionized hydrogen gas, currently thought to be driven by supernova explosions happening at a prodigious rate within the galaxy – about one every 10 years on average.
This photograph combines nearly 175 hours of exposures through three different telescopes, with nearly 100 hours of that taken through a hydrogen-alpha filter to isolate and emphasize the bipolar outflow.
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M81 Galaxy Group, Neutral Hydrogen, and Interstellar Dust |
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M81 Galaxy Group and Interstellar Dust |
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Chaotic Galaxy M82 |
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Technical Details |
| Optics: | PlaneWave 14" CDK, Takahashi FSQ-106 EDX4, RCOS 20" Ritchey-Chretien | | Camera: | QHY600M, STL-11000M | | Mount: | Paramount ME II, Paramount MX+, Paramount ME | | Filters: | Chroma RGB, 3nm H⺠| | Dates/Times: | 6 January - 11 March 2021, January - February 2005 | | Location: | RC-Astro North Observatory at New Mexico Skies | | Exposure Details: | RGB = 77.25 hours, H⺠= 97.5 hours | | Acquisition: | MaximDL, ACP Expert | | Processing: | PixInsight, Photoshop | |
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