{"id":"vidhyamitra:day:-1626073-12-28:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/-1626073-12-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"-1626073-12-28","date_display":"December 28, 1626074 BCE","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":-1626073,"month":12,"day":28,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":-592201744.229167,"kali_year":-1622932,"ahargana":-592790209.7292,"sun":{"sidereal_longitude":276.4664,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":172.0637,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":255.5973,"elapsed_within_tithi_degrees":3.5973},"nakshatra":{"number":13,"name":"Hasta","pada":4,"moon_longitude":172.0637,"elapsed_within_degrees":12.0637},"yoga":{"number":7,"name":"Sukarma","sum_longitude":88.5301},"karana":{"half_tithi_index":42,"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":-1626073,"month":12,"day":28,"hour":6,"minute":30,"calendar":"julian"},"julian_day":-592201744.229167,"ahargana":-592790209.7292,"kali_year":-1622932,"ayanamsa_lahiri":-22719.408,"grahas":{"sun":{"sidereal_longitude":276.4664,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":172.0637,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false,"latitude":2.5176},"mars":{"sidereal_longitude":322.4947,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":256.5151,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":101.5166,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":true},"venus":{"sidereal_longitude":238.3605,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":192.4178,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":138.0178,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":318.0178,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","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":-1626073,"month":12,"day":28,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":-592201744.229167,"kali_year":-1622932,"ahargana":-592790209.7292,"sun":{"sidereal_longitude":276.4664,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":172.0637,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":255.5973,"elapsed_within_tithi_degrees":3.5973},"nakshatra":{"number":13,"name":"Hasta","pada":4,"moon_longitude":172.0637,"elapsed_within_degrees":12.0637},"yoga":{"number":7,"name":"Sukarma","sum_longitude":88.5301},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.518,"elongation":104.403},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.518,"opposition_distance":75.597}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":-1626016,"saka_samvat":-1626151,"bengali_samvat":-1626666,"malayalam_era":-1626897,"nanakshahi_year":-1627542,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Saptamī · Vikram -1626016 undefined · Śaka -1626151 undefined"},"festivals":[],"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":true},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga December 28, 1626074 BCE · Vidhyamitra","description":"Vedic pañchāṅga for December 28, 1626074 BCE: Kṛṣṇa Saptamī · Hasta.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/-1626073-12-28","hreflang_alternates":{"en":"https://vidhyamitra.com/day/-1626073-12-28","sa":"https://sa.vidhyamitra.com/day/-1626073-12-28","hi":"https://hi.vidhyamitra.com/day/-1626073-12-28","x-default":"https://vidhyamitra.com/day/-1626073-12-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T12:18:13.759Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-06-01T12:18:13.759Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}