
Rowdy - q/dau π©
@rowdy
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Astronomy Picture of the Day (A Beautiful Trifid)
The beautiful Trifid Nebula is a cosmic study in contrasts. Also known as M20, it lies about 5,000 light-years away toward the nebula rich constellation Sagittarius. A star forming region in the plane of our galaxy, the Trifid does illustrate three different types of astronomical nebulae; red emission nebulae dominated by light from hydrogen atoms, blue reflection nebulae produced by dust reflecting starlight, and dark nebulae where dense dust clouds appear in silhouette. But, the red emission region roughly separated into three parts by obscuring dust lanes is what lends the Trifid its popular name. Pillars and jets sculpted by newborn stars, above and right of the emission nebulaβs center, appear in famous Hubble Space Telescope close-up images of the region. The Trifid Nebula is about 40 light-years across. Too faint to be seen by the unaided eye, in this deep telescopic view it almost covers the area of a full moon on planet Earthβs sky.
- July 9, 2025
- Shared through genyapps (Nasa Explorer) by @compez.eth
- From Effort to Achievement β $GENY Helps You Share Your Path! π 0 reply
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Astronomy Picture of the Day (Interstellar Comet 3I/ATLAS)
It came from outer space. An object from outside our Solar System is now passing through at high speed. Classified as a comet because of its gaseous coma, 3I/ATLAS is only the third identified macroscopic object as being so alien. The cometβs trajectory is shown in white on the featured map, where the orbits of Jupiter, Mars, and Earth are shown in gold, red, and blue. Currently Comet 3I/ATLAS is about the distance of Jupiter from the Sun -- but closing, with its closest approach to our Sun expected to be within the orbit of Mars in late October. Expected to pass near both Mars and Jupiter, 3I/ATLAS is not expected to pass close to the Earth. The origin of Comet 3I/ATLAS remains unknown. Although initial activity indicates a relatively normal comet, future observations about 3I/ATLASβ composition and nature will surely continue. Piece it All Together: Astronomy Puzzle of the Day
- July 8, 2025
- Shared through genyapps (Nasa Explorer) by @compez.eth
- From Effort to Achievement β $GENY Helps You Share Your Path! π 0 reply
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