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Glossary term: মীন

Description: মীন হল রাশিচক্রের একটি নক্ষত্রমণ্ডল, অর্থাৎ এই নক্ষত্রমণ্ডলের তারা আকাশের সেই অংশে অবস্থিত যেখানে পৃথিবীর সূর্যপরিক্রমার ক্ষেত্র (ecliptic) অর্থাৎ সূর্যের চারপাশে পৃথিবীর কক্ষপথ দ্বারা নির্ধারিত সমতলটি ছেদ করে। এই কারণে, পৃথিবী থেকে আমরা নিয়মিতভাবে এই নক্ষত্রমণ্ডলে সূর্যকে, এবং সৌরজগতের অন্যান্য গ্রহগুলোকেও দেখতে পাই। সূর্যের ক্ষেত্রে এটি মার্চ মাসের মাঝামাঝি থেকে এপ্রিল মাসের মাঝামাঝি পর্যন্ত হয়, যার মধ্যে বসন্ত বিষুব আছে। (অবশ্যই, যখন সূর্য সেখানে থাকে, আমরা নক্ষত্রমণ্ডলের তারাগুলো দেখতে পাই না।)

ইন্টারন্যাশনাল অ্যাস্ট্রোনমিক্যাল ইউনিয়ন দ্বারা নির্ধারিত ৮৮টি আধুনিক নক্ষত্রমণ্ডলের মধ্যে মীন অন্যতম, কিন্তু এটি আরও অনেক পুরনো - এটি ইতিমধ্যে ২য় শতাব্দীর জ্যোতির্বিজ্ঞানী ক্লডিয়াস টলেমীর নামকরণ করা ৪৮টি নক্ষত্রমণ্ডলের মধ্যে অন্যতম ছিল।

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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

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".

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In front of the curve of the Milky Way we find the hourglass-shaped Orion and the bright Pleiades star cluster.

Warm Winter Night Over Spiš Region

Caption: Winner in the 2022 IAU OAE Astrophotography Contest, category Still images of celestial patterns.   This image, taken in Slovakia in January 2022, shows regions of the Milky Way and a rich variety of constellations. The summer constellations of the northern hemisphere are very low in the sky towards the bottom-right. The bright stars of Cygnus and Lyra shine through the artificial lights at the horizon. The huge array of northern winter and autumn constellations with many bright stars are associated with diverse cultural stories. For the Lakota people in North America the belt of the Orion constellation represents the spine of a bison (“Tayamnicankh”). Orion, the Hunter of Greek mythology, is sometimes described chasing the Seven Sisters, the Pleiades. The Arabs transformed this view by considering the follower of the Pleiades only one star instead of a constellation. Aldebaran, the star in the right eye of Taurus, the Bull, comes from this interpretation, because the name Aldebaran derives from al-dabaran, The Follower. At the bottom-right, on the horizon, we can see the milky lightcone of the Zodiacal light stretching from the constellation Pisces through Aries, almost reaching the Pleiades, indicating the path of the planets and the Moon in this area. The Pleiades and the Hyades together form a gate on this path, where the heavenly bodies occasionally pass before entering the Milky Way. The planets were considered sheep in ancient Babylon and the modern constellation Orion was considered the “True Shepherd” of the Sky, with his shepherd’s tool reaching the ecliptic. In Roman tradition, the bright white star above the Pleiades and the Milky Way is called Capella, the Goat, which can be traced back to an Egyptian constellation in this area. Above the treetop in the middle-right part of the image, we see the autumn square, the Andromeda Galaxy and the W-shaped pattern of Cassiopeia. To the left of this group, in the central part of the visible Milky Way, is the constellation Perseus, with Cepheus in the dark area above Cassiopeia completing the celestial family. The Andromeda saga is a Greek story from the area that is now called Israel, and is rooted in Syrian traditions. The location of Andromeda was considered by the ancient Babylonians as the location of the goddess of sexual love, and by the Syrians as the location of the goddess of fertility. According to the saga, Andromeda was chained to a rock at the coast of Jaffa (Tel Aviv) in order to protect her land from a sea monster. The name of the hero who rescued her is Perseus, probably meaning “from Persia” (today’s Iran). Noticeable in the valley are the lights from towns. The yellow light above the horizon indicates larger cities there, which are given away by their light pollution.
Credit: Robert Barsa/IAU OAE

License: CC-BY-4.0 Creative Commons অ্যাট্রিবিউশন 4.0 আন্তর্জাতিক (CC BY 4.0) icons