{"id":"vidhyamitra:city-day:erode:1977-04-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1977-04-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1977-04-04","date_display":"April 4, 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":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443237.770833,"kali_year":5078,"ahargana":1854772.2708,"sun":{"sidereal_longitude":350.8385,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":167.7157,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":176.8772,"elapsed_within_tithi_degrees":8.8772},"nakshatra":{"number":13,"name":"Hasta","pada":3,"moon_longitude":167.7157,"elapsed_within_degrees":7.7157},"yoga":{"number":12,"name":"Dhruva","sum_longitude":158.5542},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2443237.770833,"ahargana":1854772.2708,"kali_year":5078,"ayanamsa_lahiri":23.5353,"grahas":{"sun":{"sidereal_longitude":350.625008,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":168.789808,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false,"latitude":-1.3537},"mars":{"sidereal_longitude":318.48930799999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":8.278408000000013,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":36.410008000000005,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":354.633708,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":106.45310800000004,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":185.2393,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":5.2393,"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":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443237.770833,"kali_year":5078,"ahargana":1854772.2708,"sun":{"sidereal_longitude":350.8385,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":167.7157,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":176.8772,"elapsed_within_tithi_degrees":8.8772},"nakshatra":{"number":13,"name":"Hasta","pada":3,"moon_longitude":167.7157,"elapsed_within_degrees":7.7157},"yoga":{"number":12,"name":"Dhruva","sum_longitude":158.5542},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.354,"elongation":176.877},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.354,"opposition_distance":3.123}},"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":"06:15","sunsetLocal":"18:30","solarNoonLocal":"12:23","dayLengthHours":12.263659664039594,"dayLengthDisplay":"12 Hours 15 Mins 49 Secs","nightLengthDisplay":"11 Hours 44 Mins 11 Secs","moonriseLocal":"18:17","moonsetLocal":"06:14","rahuKala":{"name":"Rāhu Kāla","start":"07:47","end":"09:19","startHours":7.7767080109673214,"endHours":9.30966546897227,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:51","end":"12:23","startHours":10.84262292697722,"endHours":12.375580384982168,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:55","end":"15:26","startHours":13.90853784298712,"endHours":15.441495300992067,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:06","end":"09:31","startHours":9.105271141238276,"endHours":9.514059796706263,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:45","end":"07:05","startHours":6.754736372297355,"endHours":7.081767296671744,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:47","startHours":11.966791729514181,"endHours":12.784369040450155,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:37","end":"05:26","startHours":4.608595931090426,"endHours":5.426173242026399,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:13","end":"06:15","startHours":5.221778914292406,"endHours":6.243750552962372,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:25","end":"15:14","startHours":14.4195236623221,"endHours":15.237100973258071,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:18","end":"18:42","startHours":18.307410217001966,"endHours":18.707410217001964,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:30","end":"19:01","startHours":18.507410217001965,"endHours":19.01839603633695,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:15","end":"20:00","startHours":18.257410217001965,"endHours":20.007410217001965,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:47","startHours":23.96679172951418,"endHours":24.784369040450155,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:15","end":"07:47","startHours":6.243750552962372,"endHours":7.7767080109673214,"quality":"auspicious"},{"name":"Kāla","start":"07:47","end":"09:19","startHours":7.7767080109673214,"endHours":9.30966546897227,"quality":"inauspicious"},{"name":"Śubha","start":"09:19","end":"10:51","startHours":9.30966546897227,"endHours":10.84262292697722,"quality":"auspicious"},{"name":"Roga","start":"10:51","end":"12:23","startHours":10.84262292697722,"endHours":12.375580384982168,"quality":"inauspicious"},{"name":"Udveg","start":"12:23","end":"13:55","startHours":12.375580384982168,"endHours":13.90853784298712,"quality":"inauspicious"},{"name":"Chala","start":"13:55","end":"15:26","startHours":13.90853784298712,"endHours":15.441495300992067,"quality":"neutral"},{"name":"Labha","start":"15:26","end":"16:58","startHours":15.441495300992067,"endHours":16.974452758997018,"quality":"auspicious"},{"name":"Amṛta","start":"16:58","end":"18:30","startHours":16.974452758997018,"endHours":18.507410217001965,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:30","end":"19:58","startHours":18.507410217001965,"endHours":19.974452758997018,"quality":"neutral"},{"name":"Labha","start":"19:58","end":"21:26","startHours":19.974452758997018,"endHours":21.441495300992067,"quality":"auspicious"},{"name":"Amṛta","start":"21:26","end":"22:55","startHours":21.441495300992067,"endHours":22.908537842987116,"quality":"auspicious"},{"name":"Kāla","start":"22:55","end":"00:23","startHours":22.908537842987116,"endHours":24.375580384982168,"quality":"inauspicious"},{"name":"Śubha","start":"00:23","end":"01:51","startHours":24.375580384982168,"endHours":25.84262292697722,"quality":"auspicious"},{"name":"Roga","start":"01:51","end":"03:19","startHours":25.84262292697722,"endHours":27.30966546897227,"quality":"inauspicious"},{"name":"Udveg","start":"03:19","end":"04:47","startHours":27.30966546897227,"endHours":28.77670801096732,"quality":"inauspicious"},{"name":"Chala","start":"04:47","end":"06:15","startHours":28.77670801096732,"endHours":30.24375055296237,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:15","end":"07:15","startHours":6.243750552962372,"endHours":7.243750552962372,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:15","end":"08:15","startHours":7.243750552962372,"endHours":8.243750552962371,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:15","end":"09:15","startHours":8.243750552962371,"endHours":9.243750552962371,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:15","end":"10:15","startHours":9.243750552962371,"endHours":10.243750552962371,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:15","end":"11:15","startHours":10.243750552962371,"endHours":11.243750552962371,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:15","end":"12:15","startHours":11.243750552962371,"endHours":12.243750552962371,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:15","end":"13:15","startHours":12.243750552962371,"endHours":13.243750552962371,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:15","end":"14:15","startHours":13.243750552962371,"endHours":14.243750552962371,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:15","end":"15:15","startHours":14.243750552962371,"endHours":15.243750552962371,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:15","end":"16:15","startHours":15.243750552962371,"endHours":16.24375055296237,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:15","end":"17:15","startHours":16.24375055296237,"endHours":17.24375055296237,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:15","end":"18:15","startHours":17.24375055296237,"endHours":18.24375055296237,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:15","end":"19:15","startHours":18.24375055296237,"endHours":19.24375055296237,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:15","end":"20:15","startHours":19.24375055296237,"endHours":20.24375055296237,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:15","end":"21:15","startHours":20.24375055296237,"endHours":21.24375055296237,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:15","end":"22:15","startHours":21.24375055296237,"endHours":22.24375055296237,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:15","end":"23:15","startHours":22.24375055296237,"endHours":23.24375055296237,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:15","end":"00:15","startHours":23.24375055296237,"endHours":24.24375055296237,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:15","end":"01:15","startHours":24.24375055296237,"endHours":25.24375055296237,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:15","end":"02:15","startHours":25.24375055296237,"endHours":26.24375055296237,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:15","end":"03:15","startHours":26.24375055296237,"endHours":27.24375055296237,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:15","end":"04:15","startHours":27.24375055296237,"endHours":28.24375055296237,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:15","end":"05:15","startHours":28.24375055296237,"endHours":29.24375055296237,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:15","end":"06:15","startHours":29.24375055296237,"endHours":30.24375055296237,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Mṛtyu","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":5.583689017501999,"eotMinutes":-3.4036230989301703,"ayanamsa":23.5353}},"calendars":{"vikram_samvat":2034,"vikram_samvatsara":"Pramoda","saka_samvat":1899,"saka_samvatsara":"Piṅgala","bengali_samvat":1384,"malayalam_era":1153,"nanakshahi_year":508,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Pūrṇimā · Vikram 2034 Pramoda · Śaka 1899 Piṅgala"},"festivals":[{"id":"hanuman-jayanti","name":"Hanumān Jayantī","name_sanskrit":"हनुमान जयन्ती","tradition":"Vaishnava","associated_deity":"Bhagavān Hanumān (Rudra-aṁśa, Rāma-bhakta)","significance":"Birth of Hanumān (Caitra Pūrṇimā tradition; some traditions Mārgaśīrṣa Kṛṣṇa 14).","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":1,"sources":["Vālmīki Rāmāyaṇa, Sundara-Kāṇḍa"]}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","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 4, 1977 CE · Erode, Tamil Nadu · Vidhyamitra","description":"April 4, 1977 CE for Erode, Tamil Nadu: Śukla Pūrṇimā, sūryodaya 06:15, sūryāsta 18:30.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1977-04-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1977-04-04","sa":"https://sa.vidhyamitra.com/city/erode/1977-04-04","hi":"https://hi.vidhyamitra.com/city/erode/1977-04-04","x-default":"https://vidhyamitra.com/city/erode/1977-04-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T04:20:59.061Z","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":"2026-06-02T04:20:59.061Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T04:20:59.061Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}