{"id":"vidhyamitra:day:-3138-07-28:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/-3138-07-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"-3138-07-28","date_display":"July 28, 3139 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":-3138,"month":7,"day":28,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":575111.770833,"kali_year":-36,"ahargana":-13353.7292,"sun":{"sidereal_longitude":156.2011,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":82.7537,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":286.5526,"elapsed_within_tithi_degrees":10.5526},"nakshatra":{"number":7,"name":"Punarvasu","pada":1,"moon_longitude":82.7537,"elapsed_within_degrees":2.7537},"yoga":{"number":18,"name":"Varīyān","sum_longitude":238.9547},"karana":{"half_tithi_index":47,"name":"Gara"},"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":-3138,"month":7,"day":28,"hour":6,"minute":30,"calendar":"julian"},"julian_day":575111.770833,"ahargana":-13353.7292,"kali_year":-36,"ayanamsa_lahiri":-47.9135,"grahas":{"sun":{"sidereal_longitude":156.2011,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":82.7537,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false,"latitude":-4.4814},"mars":{"sidereal_longitude":178.6226,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":142.6519,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":327.4388,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":176.8875,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":262.6374,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":167.5448,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":347.5448,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"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":-3138,"month":7,"day":28,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":575111.770833,"kali_year":-36,"ahargana":-13353.7292,"sun":{"sidereal_longitude":156.2011,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":82.7537,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":286.5526,"elapsed_within_tithi_degrees":10.5526},"nakshatra":{"number":7,"name":"Punarvasu","pada":1,"moon_longitude":82.7537,"elapsed_within_degrees":2.7537},"yoga":{"number":18,"name":"Varīyān","sum_longitude":238.9547},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.481,"elongation":73.447},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.481,"opposition_distance":106.553}},"eclipse_window_40days":[{"offset_days":6,"type":"solar","occurs":true,"moon_latitude":-0.588,"elongation":2.373},{"offset_days":20,"type":"lunar","occurs":true,"moon_latitude":-0.633,"opposition_distance":1.323}]},"calendars":{"vikram_samvat":-3081,"saka_samvat":-3216,"bengali_samvat":-3731,"malayalam_era":-3962,"nanakshahi_year":-4607,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Navamī · Vikram -3081 undefined · Śaka -3216 undefined"},"festivals":[{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"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":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Punarvasu","url":"/day/-1626101-04-03","relevance":0.5}]},"validity":{"eternal":true},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga July 28, 3139 BCE · Vidhyamitra","description":"Vedic pañchāṅga for July 28, 3139 BCE: Kṛṣṇa Navamī · Punarvasu.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/-3138-07-28","hreflang_alternates":{"en":"https://vidhyamitra.com/day/-3138-07-28","sa":"https://sa.vidhyamitra.com/day/-3138-07-28","hi":"https://hi.vidhyamitra.com/day/-3138-07-28","x-default":"https://vidhyamitra.com/day/-3138-07-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T17:39:58.570Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-14T17:39:58.570Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}