Glossary term: कृष्ण नीहारिका
Description: कृष्ण नीहारिका (अँध्यारो नीहारिका) अन्तरिक्षमा रहेको ग्यास र धुलोको त्यस्तो चिसो बादल हो जसले यसको पछाडि रहेका तारा र उज्यालो नीहारिकाहरूबाट आउने धेरैजसो प्रकाशलाई रोक्छ, जसले गर्दा यो अँध्यारो देखिन्छ। यो धुलो नै भएतापनि यसले पछाडिबाट आउने प्रकाशलाई रोक्छ, यद्यपि धुलोले नीहारिकाको पदार्थको मात्र १% ओगटेको हुन्छ। यस्तो नीहारिकाहरूले दृश्य र पराबैजनी प्रकाशलाई रोक्छन्, तर तिनीहरूलाई इन्फ्रारेड प्रकाशमा भने हेर्न सम्भव छ। तारामण्डलमा रहेको हर्सहेड नीहारिका यो खाले नीहारिकाको सबैभन्दा प्रसिद्ध उदाहरण हो।
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
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In Other Languages
- अरबिक: السديم المظلم
- जर्मन: Dunkelnebel
- अंग्रेजी: Dark Nebula
- फ्रान्सेली: Nébuleuse sombre
- ईटालियन: Nebulosa Oscura
- जापनिज: 暗黒星雲 (external link)
- कोरियाली: 암흑성운
- सरल चिनि: 暗星云
- प्राचिन चिनि: 暗星雲
Related Media
Dust Clouds and Nebulae near R Coronae Australis
Caption: The image shows a dark and dusty cloud and some bright reflection nebulae near the binary star R Coronae Australis. The dark cloud spans several light-years and is located in the constellation Corona Australis near the constellation Sagittarius, in the direction of the Milky Way's center. The cloud appears to swallow the light of distant stars behind it as the dust particles in it scatter light passing through in all directions. This gives it the appearance of a void in the sky. This dark nebula is part of the broader Corona Australis Molecular Clouds. R Coronae Australis forms part of the Coronet Cluster, a collection of young stars which formed at some point in the last two million years.
Around R Coronae Australis in the center of the image is the small reflection nebula NGC 6729 with two blueish reflection nebulae NGC 6726 and NGC 6727 lying to the upper right of it. In these nebulae the dust scatters light from bright stars near the nebula towards an observer on Earth, making it glow in this image.
Credit: ESO
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License: CC-BY-4.0 Creative Commons Attribution 4.0 International (CC BY 4.0) icons
