{"id":"vidhyamitra:day:1728-04-27:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1728-04-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1728-04-27","date_display":"April 27, 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":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2352315.770833,"kali_year":4830,"ahargana":1763850.2708,"sun":{"sidereal_longitude":17.5502,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":237.5162,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":219.966,"elapsed_within_tithi_degrees":3.966},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4,"moon_longitude":237.5162,"elapsed_within_degrees":10.8495},"yoga":{"number":20,"name":"Śiva","sum_longitude":255.0664},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2352315.770833,"ahargana":1763850.2708,"kali_year":4830,"ayanamsa_lahiri":20.0579,"grahas":{"sun":{"sidereal_longitude":16.85819600000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":237.92739600000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false,"latitude":-4.4842},"mars":{"sidereal_longitude":135.37249599999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":true},"mercury":{"sidereal_longitude":358.488396,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":48.676896,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":349.320896,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":309.2242960000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":322.7244,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":142.7244,"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":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2352315.770833,"kali_year":4830,"ahargana":1763850.2708,"sun":{"sidereal_longitude":17.5502,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":237.5162,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":219.966,"elapsed_within_tithi_degrees":3.966},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4,"moon_longitude":237.5162,"elapsed_within_degrees":10.8495},"yoga":{"number":20,"name":"Śiva","sum_longitude":255.0664},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.484,"elongation":140.034},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.484,"opposition_distance":39.966}},"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 Caturthī · Vikram 1785 Durmati · Śaka 1650 Kīlaka"},"festivals":[{"id":"angarika-chaturthi","name":"Aṅgāraka Caturthī (Tuesday Caturthī)","name_sanskrit":"अङ्गारक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa + Maṅgala","significance":"Tuesday-Caturthī (rare); supremely auspicious for Maṅgala-doṣa-nivāraṇa.","vrata":true,"detection":{"any_of":[{"tithi_number":4,"vara_name":"Maṅgalavāra (Tuesday)"},{"tithi_number":19,"vara_name":"Maṅgalavāra (Tuesday)"}]},"precedence":3},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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":false,"valid_from":"1728-04-27T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga April 27, 1728 CE · Vidhyamitra","description":"Vedic pañchāṅga for April 27, 1728 CE: Kṛṣṇa Caturthī · Jyeṣṭhā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1728-04-27","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1728-04-27","sa":"https://sa.vidhyamitra.com/day/1728-04-27","hi":"https://hi.vidhyamitra.com/day/1728-04-27","x-default":"https://vidhyamitra.com/day/1728-04-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T07:57:02.421Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-30T07:57:02.421Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}