Glossary term: पृथ्वी
Description: पृथ्वी हा सूर्यापासून तिसरा ग्रह आहे आणि सूर्यमालेतील पाचवा सर्वात मोठा ग्रह आहे. हा सुमारे ६,४०० किलोमीटर (किमी) त्रिज्या असलेला खडकाळ, पार्थिव ग्रह आहे. त्याचे वस्तुमान सुमारे सहा ट्रिलियन, ट्रिलियन किलोग्रॅम आहे.
सूर्यापासून पृथ्वीचे सामान्य अंतर सुमारे 150 दशलक्ष किलोमीटर आहे. हे एक खगोलशास्त्रीय एकक म्हणून परिभाषित केले आहे. पृथ्वीला सूर्याची कक्षा पूर्ण करण्यासाठी ३६५.२६ वेळ लागतो. पृथ्वीचा एक नैसर्गिक उपग्रह आहे जो चंद्र म्हणून ओळखला जातो.
पृथ्वी ही मानवांसह लाखो सजीव प्रजातींचे घर आहे; विश्वात आजपर्यंतचे हे एकमेव ठिकाण आढळले आहे जेथे जीवन आहे. हे सुमारे 4.54 अब्ज वर्षांपूर्वी तयार झाले असे मानले जाते. पृथ्वीवर वातावरण आणि चुंबकीय क्षेत्र आहे जे हानिकारक किरणोत्सर्ग रोखण्यासाठी कार्य करते आणि म्हणूनच सजीवांच्या जगण्यासाठी अनुकूल आहे. पृथ्वीवरच्या विस्तृत पृष्ठभागावर पाणी आहे (सौरमालेतील एकमेव ग्रह असे असण्यासाठी ज्ञात आहे), ज्यामुळे पृथ्वीला निळा रंग येतो.
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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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