{"id":"vidhyamitra:day:-0528-04-25:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/-0528-04-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"-0528-04-25","date_display":"April 25, 529 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":-528,"month":4,"day":25,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":1528320.770833,"kali_year":2574,"ahargana":939855.2708,"sun":{"sidereal_longitude":45.1022,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":227.6195,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":182.5173,"elapsed_within_tithi_degrees":2.5173},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1,"moon_longitude":227.6195,"elapsed_within_degrees":0.9529},"yoga":{"number":21,"name":"Siddha","sum_longitude":272.7217},"karana":{"half_tithi_index":30,"name":"Bālava"},"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":-528,"month":4,"day":25,"hour":6,"minute":30,"calendar":"julian"},"julian_day":1528320.770833,"ahargana":939855.2708,"kali_year":2574,"ayanamsa_lahiri":-11.4569,"grahas":{"sun":{"sidereal_longitude":45.1022,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":227.6195,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false,"latitude":1.1123},"mars":{"sidereal_longitude":34.6305,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":18.5336,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":347.8505,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":357.5148,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":108.1406,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":61.9449,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":241.9449,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","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":-528,"month":4,"day":25,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":1528320.770833,"kali_year":2574,"ahargana":939855.2708,"sun":{"sidereal_longitude":45.1022,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":227.6195,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":182.5173,"elapsed_within_tithi_degrees":2.5173},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1,"moon_longitude":227.6195,"elapsed_within_degrees":0.9529},"yoga":{"number":21,"name":"Siddha","sum_longitude":272.7217},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.112,"elongation":177.483},"lunar":{"type":"lunar","occurs":true,"moon_latitude":1.112,"opposition_distance":2.517}},"eclipse_window_40days":[{"offset_days":0,"type":"lunar","occurs":true,"moon_latitude":1.112,"opposition_distance":2.517},{"offset_days":15,"type":"solar","occurs":true,"moon_latitude":-0.293,"elongation":1.94}]},"calendars":{"vikram_samvat":-471,"saka_samvat":-606,"bengali_samvat":-1121,"malayalam_era":-1352,"nanakshahi_year":-1997,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Pratipada · Vikram -471 undefined · Śaka -606 undefined"},"festivals":[{"id":"vrishabha-sankranti","name":"Vṛṣabha Saṅkrānti","name_sanskrit":"वृषभ सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Taurus.","vrata":false,"detection":{"sun_rashi":"Vṛṣabha"},"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","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 April 25, 529 BCE · Vidhyamitra","description":"Vedic pañchāṅga for April 25, 529 BCE: Kṛṣṇa Pratipada · Jyeṣṭhā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/-0528-04-25","hreflang_alternates":{"en":"https://vidhyamitra.com/day/-0528-04-25","sa":"https://sa.vidhyamitra.com/day/-0528-04-25","hi":"https://hi.vidhyamitra.com/day/-0528-04-25","x-default":"https://vidhyamitra.com/day/-0528-04-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T15:41:17.643Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-16T15:41:17.643Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}