{"id":"vidhyamitra:day:1728-04-25:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1728-04-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1728-04-25","date_display":"April 25, 1728 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":1728,"month":4,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2352313.770833,"kali_year":4830,"ahargana":1763848.2708,"sun":{"sidereal_longitude":15.6185,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":209.7064,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.0879,"elapsed_within_tithi_degrees":2.0879},"nakshatra":{"number":16,"name":"Viśākhā","pada":3,"moon_longitude":209.7064,"elapsed_within_degrees":9.7064},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":225.3248},"karana":{"half_tithi_index":32,"name":"Taitila"},"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":1728,"month":4,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2352313.770833,"ahargana":1763848.2708,"kali_year":4830,"ayanamsa_lahiri":20.0578,"grahas":{"sun":{"sidereal_longitude":14.91687300000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":208.81027300000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false,"latitude":-4.1378},"mars":{"sidereal_longitude":135.03347299999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":true},"mercury":{"sidereal_longitude":358.186373,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":48.241472999999985,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":346.915073,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":309.09417299999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":322.8304,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":142.8304,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":1728,"month":4,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2352313.770833,"kali_year":4830,"ahargana":1763848.2708,"sun":{"sidereal_longitude":15.6185,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":209.7064,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.0879,"elapsed_within_tithi_degrees":2.0879},"nakshatra":{"number":16,"name":"Viśākhā","pada":3,"moon_longitude":209.7064,"elapsed_within_degrees":9.7064},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":225.3248},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.138,"elongation":165.912},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.138,"opposition_distance":14.088}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":1785,"vikram_samvatsara":"Durmati","saka_samvat":1650,"saka_samvatsara":"Kīlaka","bengali_samvat":1135,"malayalam_era":904,"nanakshahi_year":259,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha (Adhika) Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":true,"lunar_month_purnimanta_is_adhika":true,"lunar_month_amanta_is_adhika":true,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha (Adhika) Kṛṣṇa Dvitīyā · Vikram 1785 Durmati · Śaka 1650 Kīlaka"},"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":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"valid_from":"1728-04-25T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga April 25, 1728 CE · Vidhyamitra","description":"Vedic pañchāṅga for April 25, 1728 CE: Kṛṣṇa Dvitīyā · Viśākhā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1728-04-25","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1728-04-25","sa":"https://sa.vidhyamitra.com/day/1728-04-25","hi":"https://hi.vidhyamitra.com/day/1728-04-25","x-default":"https://vidhyamitra.com/day/1728-04-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T05:46:27.980Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-30T05:46:27.980Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}