{"id":"vidhyamitra:day:2170-09-09:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/2170-09-09","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2170-09-09","date_display":"September 9, 2170 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2170,"month":9,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2513887.770833,"kali_year":5272,"ahargana":1925422.2708,"sun":{"sidereal_longitude":139.2048,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":117.0036,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":337.7988,"elapsed_within_tithi_degrees":1.7988},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4,"moon_longitude":117.0036,"elapsed_within_degrees":10.3369},"yoga":{"number":20,"name":"Śiva","sum_longitude":256.2083},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":2170,"month":9,"day":9,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2513887.770833,"ahargana":1925422.2708,"kali_year":5272,"ayanamsa_lahiri":26.2374,"grahas":{"sun":{"sidereal_longitude":140.32435799999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":117.72935799999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false,"latitude":4.3492},"mars":{"sidereal_longitude":194.12485800000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":137.38385800000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":148.033658,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":142.326458,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":303.998458,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":41.8623,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":221.8623,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2170,"month":9,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2513887.770833,"kali_year":5272,"ahargana":1925422.2708,"sun":{"sidereal_longitude":139.2048,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":117.0036,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":337.7988,"elapsed_within_tithi_degrees":1.7988},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4,"moon_longitude":117.0036,"elapsed_within_degrees":10.3369},"yoga":{"number":20,"name":"Śiva","sum_longitude":256.2083},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.349,"elongation":22.201},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.349,"opposition_distance":157.799}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":2227,"vikram_samvatsara":"Subhānu","saka_samvat":2092,"saka_samvatsara":"Pramoda","bengali_samvat":1577,"malayalam_era":1346,"nanakshahi_year":701,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Caturdaśī · Vikram 2227 Subhānu · Śaka 2092 Pramoda"},"festivals":[{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"precedence":5},{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"valid_from":"2170-09-09T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga September 9, 2170 CE · Vidhyamitra","description":"Vedic pañchāṅga for September 9, 2170 CE: Kṛṣṇa Caturdaśī · Āśleṣā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/2170-09-09","hreflang_alternates":{"en":"https://vidhyamitra.com/day/2170-09-09","sa":"https://sa.vidhyamitra.com/day/2170-09-09","hi":"https://hi.vidhyamitra.com/day/2170-09-09","x-default":"https://vidhyamitra.com/day/2170-09-09"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T14:49:58.489Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-20T14:49:58.489Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}