{"id":"vidhyamitra:day:1852-12-17:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1852-12-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1852-12-17","date_display":"December 17, 1852 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":1852,"month":12,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2397839.770833,"kali_year":4954,"ahargana":1809374.2708,"sun":{"sidereal_longitude":243.5325,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":317.1684,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":73.6359,"elapsed_within_tithi_degrees":1.6359},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4,"moon_longitude":317.1684,"elapsed_within_degrees":10.5017},"yoga":{"number":16,"name":"Siddhi","sum_longitude":200.7009},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":1852,"month":12,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2397839.770833,"ahargana":1809374.2708,"kali_year":4954,"ayanamsa_lahiri":21.799,"grahas":{"sun":{"sidereal_longitude":243.532145,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"moon":{"sidereal_longitude":318.63894500000004,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false,"latitude":-4.1269},"mars":{"sidereal_longitude":255.43694500000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":254.05794500000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":229.01534500000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":210.13584500000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":21.46634499999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":70.6438,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":250.6438,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"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":1852,"month":12,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2397839.770833,"kali_year":4954,"ahargana":1809374.2708,"sun":{"sidereal_longitude":243.5325,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":317.1684,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":73.6359,"elapsed_within_tithi_degrees":1.6359},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4,"moon_longitude":317.1684,"elapsed_within_degrees":10.5017},"yoga":{"number":16,"name":"Siddhi","sum_longitude":200.7009},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.127,"elongation":73.636},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.127,"opposition_distance":106.364}},"eclipse_window_40days":[{"offset_days":-6,"type":"solar","occurs":true,"moon_latitude":1.08,"elongation":0.308}]},"calendars":{"vikram_samvat":1909,"vikram_samvatsara":"Krodhana","saka_samvat":1774,"saka_samvatsara":"Paridhāvi","bengali_samvat":1259,"malayalam_era":1028,"nanakshahi_year":383,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Saptamī · Vikram 1909 Krodhana · Śaka 1774 Paridhāvi"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"valid_from":"1852-12-17T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga December 17, 1852 CE · Vidhyamitra","description":"Vedic pañchāṅga for December 17, 1852 CE: Śukla Saptamī · Śatabhiṣā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1852-12-17","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1852-12-17","sa":"https://sa.vidhyamitra.com/day/1852-12-17","hi":"https://hi.vidhyamitra.com/day/1852-12-17","x-default":"https://vidhyamitra.com/day/1852-12-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T16:23:43.763Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-18T16:23:43.763Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}