2023年9月2日 NGC 7023: The Iris Nebula Image Credit & Copyright: Lorand Fenyes Explanation: These cosmic clouds have blossomed 1,300 light-years away in the fertile starfields of the constellation Cepheus. Called the Iris Nebula, NGC 7023 is not the only nebula to evoke the imagery of flowers. Sti […]
2023年6月22日 Stars and Dust across Corona Australis Image Credit & Copyright: Alessandro Cipolat Bares Explanation: Cosmic dust clouds cross a rich field of stars in this telescopic vista near the northern boundary of Corona Australis, the Southern Crown. Part of a sprawling molecular cloud compl
2023年4月22日 NGC 1333: Stellar Nursery in Perseus Image Credit: Science – NASA, ESA, STScI, Processing – Varun Bajaj (STScI), Joseph DePasquale (STScI), Jennifer Mack (STScI) Explanation: In visible light NGC 1333 is seen as a reflection nebula, dominated by bluish hues characteristic of s
2023年2月2日 Reflections on the 1970s Image Credit & Copyright: Daniel Stern Explanation: The 1970s are sometimes ignored by astronomers, like this beautiful grouping of reflection nebulae in Orion – NGC 1977, NGC 1975, and NGC 1973 – usually overlooked in favor of the substantial glow
2023年1月5日 Messier 45: The Daughters of Atlas and Pleione Image Credit & Copyright: Stefan Thrun Explanation: Hurtling through a cosmic dust cloud a mere 400 light-years away, the lovely Pleiades or Seven Sisters open star cluster is well-known for its striking blue reflection nebulae. It lies i
2022年8月5日 A Beautiful Trifid Image Credit & Copyright: Vikas Chander Explanation: 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 galax
2022年6月26日 Light Echoes from V838 Mon Image Credit: NASA, ESA, H. E. Bond (STScI) Explanation: What caused this outburst of V838 Mon? For reasons unknown, star V838 Mon’s outer surface suddenly greatly expanded with the result that it became one of the brighter stars in the Milky Way Galaxy in
2022年1月24日 Rigel and the Witch Head Nebula Image Credit & Copyright: José Mtanous Explanation: By starlight this eerie visage shines in the dark, a crooked profile evoking its popular name, the Witch Head Nebula. In fact, this entrancing telescopic portrait gives the impression that the witch h
2021年11月11日 NGC 1333: Stellar Nursery in Perseus Image Credit & Copyright: Michael Sherick Explanation: NGC 1333 is seen in visible light as a reflection nebula, dominated by bluish hues characteristic of starlight reflected by interstellar dust. A mere 1,000 light-years distant toward the hero
2021年9月3日 NGC 7023: The Iris Nebula Image Credit & Copyright: Satwant Kumar Explanation: These cosmic clouds have blossomed 1,300 light-years away, in the fertile starfields of the constellation Cepheus. Called the Iris Nebula, NGC 7023 is not the only nebula to evoke the imagery of flowers. St
