{"id":"vidhyamitra:city-day:erode:1977-04-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1977-04-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1977-04-27","date_display":"April 27, 1977 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":1977,"month":4,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443260.770833,"kali_year":5079,"ahargana":1854795.2708,"sun":{"sidereal_longitude":13.2679,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":111.509,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":98.241,"elapsed_within_tithi_degrees":2.241},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":111.509,"elapsed_within_degrees":4.8423},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":124.7769},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1977,"month":4,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2443260.770833,"ahargana":1854795.2708,"kali_year":5079,"ayanamsa_lahiri":23.5362,"grahas":{"sun":{"sidereal_longitude":13.136029000000008,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":108.12932899999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false,"latitude":-4.2916},"mars":{"sidereal_longitude":336.34862899999996,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":19.427629000000024,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":41.21002900000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":345.059329,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":106.61152900000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":184.0207,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":4.0207,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"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":1977,"month":4,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443260.770833,"kali_year":5079,"ahargana":1854795.2708,"sun":{"sidereal_longitude":13.2679,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":111.509,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":98.241,"elapsed_within_tithi_degrees":2.241},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":111.509,"elapsed_within_degrees":4.8423},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":124.7769},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.292,"elongation":98.241},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.292,"opposition_distance":81.759}},"eclipse_window_40days":[]},"city":{"slug":"erode","name":"Erode, Tamil Nadu","lat":11.341,"lon":77.7172,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"erode","name":"Erode, Tamil Nadu","lat":11.341,"lon":77.7172,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"sunriseLocal":"06:02","sunsetLocal":"18:32","solarNoonLocal":"12:17","dayLengthHours":12.491634141055478,"dayLengthDisplay":"12 Hours 29 Mins 30 Secs","nightLengthDisplay":"11 Hours 30 Mins 30 Secs","moonriseLocal":"12:20","moonsetLocal":"00:54","rahuKala":{"name":"Rāhu Kāla","start":"12:17","end":"13:50","startHours":12.279985519173195,"endHours":13.841439786805129,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:36","end":"09:09","startHours":7.595622716277391,"endHours":9.157076983909326,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:43","end":"12:17","startHours":10.718531251541261,"endHours":12.279985519173195,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:22","startHours":8.948883081558401,"endHours":9.36527088626025,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:33","end":"06:53","startHours":6.554653204522768,"endHours":6.887763448284247,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:42","startHours":11.863597714471346,"endHours":12.696373323875044,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:22","end":"05:12","startHours":4.368617229838059,"endHours":5.201392839241757,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:00","end":"06:02","startHours":4.993198936890833,"endHours":6.034168448645456,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:12","startHours":14.361924542682441,"endHours":15.19470015208614,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:20","end":"18:44","startHours":18.325802589700935,"endHours":18.725802589700933,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:32","end":"19:03","startHours":18.525802589700934,"endHours":19.046287345578246,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:17","end":"20:02","startHours":18.275802589700934,"endHours":20.025802589700934,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:42","startHours":23.863597714471346,"endHours":24.696373323875044,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:02","end":"07:36","startHours":6.034168448645456,"endHours":7.595622716277391,"quality":"auspicious"},{"name":"Amṛta","start":"07:36","end":"09:09","startHours":7.595622716277391,"endHours":9.157076983909326,"quality":"auspicious"},{"name":"Kāla","start":"09:09","end":"10:43","startHours":9.157076983909326,"endHours":10.718531251541261,"quality":"inauspicious"},{"name":"Śubha","start":"10:43","end":"12:17","startHours":10.718531251541261,"endHours":12.279985519173195,"quality":"auspicious"},{"name":"Roga","start":"12:17","end":"13:50","startHours":12.279985519173195,"endHours":13.841439786805129,"quality":"inauspicious"},{"name":"Udveg","start":"13:50","end":"15:24","startHours":13.841439786805129,"endHours":15.402894054437064,"quality":"inauspicious"},{"name":"Chala","start":"15:24","end":"16:58","startHours":15.402894054437064,"endHours":16.964348322069,"quality":"neutral"},{"name":"Labha","start":"16:58","end":"18:32","startHours":16.964348322069,"endHours":18.525802589700934,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:32","end":"19:58","startHours":18.525802589700934,"endHours":19.964348322069,"quality":"inauspicious"},{"name":"Chala","start":"19:58","end":"21:24","startHours":19.964348322069,"endHours":21.402894054437063,"quality":"neutral"},{"name":"Labha","start":"21:24","end":"22:50","startHours":21.402894054437063,"endHours":22.84143978680513,"quality":"auspicious"},{"name":"Amṛta","start":"22:50","end":"00:17","startHours":22.84143978680513,"endHours":24.279985519173195,"quality":"auspicious"},{"name":"Kāla","start":"00:17","end":"01:43","startHours":24.279985519173195,"endHours":25.71853125154126,"quality":"inauspicious"},{"name":"Śubha","start":"01:43","end":"03:09","startHours":25.71853125154126,"endHours":27.157076983909327,"quality":"auspicious"},{"name":"Roga","start":"03:09","end":"04:36","startHours":27.157076983909327,"endHours":28.59562271627739,"quality":"inauspicious"},{"name":"Udveg","start":"04:36","end":"06:02","startHours":28.59562271627739,"endHours":30.034168448645456,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:02","end":"07:02","startHours":6.034168448645456,"endHours":7.034168448645456,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:02","end":"08:02","startHours":7.034168448645456,"endHours":8.034168448645456,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:02","end":"09:02","startHours":8.034168448645456,"endHours":9.034168448645456,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:02","end":"10:02","startHours":9.034168448645456,"endHours":10.034168448645456,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:02","end":"11:02","startHours":10.034168448645456,"endHours":11.034168448645456,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:02","end":"12:02","startHours":11.034168448645456,"endHours":12.034168448645456,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:02","end":"13:02","startHours":12.034168448645456,"endHours":13.034168448645456,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:02","end":"14:02","startHours":13.034168448645456,"endHours":14.034168448645456,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:02","end":"15:02","startHours":14.034168448645456,"endHours":15.034168448645456,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:02","end":"16:02","startHours":15.034168448645456,"endHours":16.034168448645456,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:02","end":"17:02","startHours":16.034168448645456,"endHours":17.034168448645456,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:02","end":"18:02","startHours":17.034168448645456,"endHours":18.034168448645456,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:02","end":"19:02","startHours":18.034168448645456,"endHours":19.034168448645456,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:02","end":"20:02","startHours":19.034168448645456,"endHours":20.034168448645456,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:02","end":"21:02","startHours":20.034168448645456,"endHours":21.034168448645456,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:02","end":"22:02","startHours":21.034168448645456,"endHours":22.034168448645456,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:02","end":"23:02","startHours":22.034168448645456,"endHours":23.034168448645456,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:02","end":"00:02","startHours":23.034168448645456,"endHours":24.034168448645456,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:02","end":"01:02","startHours":24.034168448645456,"endHours":25.034168448645456,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:02","end":"02:02","startHours":25.034168448645456,"endHours":26.034168448645456,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:02","end":"03:02","startHours":26.034168448645456,"endHours":27.034168448645456,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:02","end":"04:02","startHours":27.034168448645456,"endHours":28.034168448645456,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:02","end":"05:02","startHours":28.034168448645456,"endHours":29.034168448645456,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:02","end":"06:02","startHours":29.034168448645456,"endHours":30.034168448645456,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"South-West","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":13.741413815711324,"eotMinutes":2.332068849608316,"ayanamsa":23.5362}},"calendars":{"vikram_samvat":2034,"vikram_samvatsara":"Pramoda","saka_samvat":1899,"saka_samvatsara":"Piṅgala","bengali_samvat":1384,"malayalam_era":1153,"nanakshahi_year":508,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Navamī · Vikram 2034 Pramoda · Śaka 1899 Piṅgala"},"festivals":[{"id":"sita-navami","name":"Sītā Navamī","name_sanskrit":"सीता नवमी","tradition":"Vaishnava","associated_deity":"Sītā Devī (Lakṣmī as Bhū-suta)","significance":"Devī Sītā's manifestation in Mithilā; rāmāvatāra-kalatra.","vrata":true,"detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":2,"sources":["Vālmīki Rāmāyaṇa, Bāla-Kāṇḍa 66"]},{"id":"madhva-jayanti","name":"Madhvācārya Jayantī","name_sanskrit":"मध्वाचार्य जयन्ती","tradition":"Vaishnava","associated_deity":"Madhvācārya (Dvaita)","significance":"Birth of Madhvācārya; Dvaita-pratiṣṭhāpaka. Vaiśākha Śukla 9.","vrata":false,"detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":4}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 Śukla Navamī","url":"/day/-1626101-04-03","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"erode"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 27, 1977 CE · Erode, Tamil Nadu · Vidhyamitra","description":"April 27, 1977 CE for Erode, Tamil Nadu: Śukla Navamī, sūryodaya 06:02, sūryāsta 18:32.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1977-04-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1977-04-27","sa":"https://sa.vidhyamitra.com/city/erode/1977-04-27","hi":"https://hi.vidhyamitra.com/city/erode/1977-04-27","x-default":"https://vidhyamitra.com/city/erode/1977-04-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T21:43:30.093Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-06-02T21:43:30.093Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T21:43:30.093Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}