{"id":"vidhyamitra:city-day:erode:1986-04-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1986-04-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1986-04-18","date_display":"April 18, 1986 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1986,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446538.770833,"kali_year":5088,"ahargana":1858073.2708,"sun":{"sidereal_longitude":4.212,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":103.8336,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":99.6216,"elapsed_within_tithi_degrees":3.6216},"nakshatra":{"number":8,"name":"Puṣya","pada":4,"moon_longitude":103.8336,"elapsed_within_degrees":10.5003},"yoga":{"number":9,"name":"Śūla","sum_longitude":108.0457},"karana":{"half_tithi_index":16,"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":1986,"month":4,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446538.770833,"ahargana":1858073.2708,"kali_year":5088,"ayanamsa_lahiri":23.6615,"grahas":{"sun":{"sidereal_longitude":4.061284999999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":100.86638499999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false,"latitude":4.4916},"mars":{"sidereal_longitude":256.397885,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":337.101085,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":320.004685,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":25.843385000000012,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":224.98298499999999,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":10.3364,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":190.3364,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1986,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446538.770833,"kali_year":5088,"ahargana":1858073.2708,"sun":{"sidereal_longitude":4.212,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":103.8336,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":99.6216,"elapsed_within_tithi_degrees":3.6216},"nakshatra":{"number":8,"name":"Puṣya","pada":4,"moon_longitude":103.8336,"elapsed_within_degrees":10.5003},"yoga":{"number":9,"name":"Śūla","sum_longitude":108.0457},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.492,"elongation":99.622},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.492,"opposition_distance":80.378}},"eclipse_window_40days":[{"offset_days":-9,"type":"solar","occurs":true,"moon_latitude":-1.269,"elongation":1.007}]},"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":"06:07","sunsetLocal":"18:31","solarNoonLocal":"12:19","dayLengthHours":12.403924710667134,"dayLengthDisplay":"12 Hours 24 Mins 14 Secs","nightLengthDisplay":"11 Hours 35 Mins 46 Secs","moonriseLocal":"12:27","moonsetLocal":"01:04","rahuKala":{"name":"Rāhu Kāla","start":"10:46","end":"12:19","startHours":10.759931362901884,"endHours":12.310421951735275,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:25","end":"16:58","startHours":15.41140312940206,"endHours":16.96189371823545,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:40","end":"09:13","startHours":7.658950185235101,"endHours":9.209440774068494,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:00","end":"09:25","startHours":9.002708695557374,"endHours":9.416172852579612,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:57","startHours":6.6252897926795065,"endHours":6.9560611182972965,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:43","startHours":11.896957794713037,"endHours":12.723886108757513,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:27","end":"05:17","startHours":4.4546029683127575,"endHours":5.281531282357234,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:04","end":"06:07","startHours":5.074799203846115,"endHours":6.108459596401709,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:23","end":"15:12","startHours":14.377742736846464,"endHours":15.20467105089094,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:19","end":"18:43","startHours":18.312384307068843,"endHours":18.71238430706884,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:31","end":"19:02","startHours":18.512384307068842,"endHours":19.02921450334664,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:16","end":"20:01","startHours":18.262384307068842,"endHours":20.012384307068842,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:43","startHours":23.89695779471304,"endHours":24.72388610875751,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:07","end":"07:40","startHours":6.108459596401709,"endHours":7.658950185235101,"quality":"neutral"},{"name":"Labha","start":"07:40","end":"09:13","startHours":7.658950185235101,"endHours":9.209440774068494,"quality":"auspicious"},{"name":"Amṛta","start":"09:13","end":"10:46","startHours":9.209440774068494,"endHours":10.759931362901884,"quality":"auspicious"},{"name":"Kāla","start":"10:46","end":"12:19","startHours":10.759931362901884,"endHours":12.310421951735275,"quality":"inauspicious"},{"name":"Śubha","start":"12:19","end":"13:52","startHours":12.310421951735275,"endHours":13.860912540568668,"quality":"auspicious"},{"name":"Roga","start":"13:52","end":"15:25","startHours":13.860912540568668,"endHours":15.41140312940206,"quality":"inauspicious"},{"name":"Udveg","start":"15:25","end":"16:58","startHours":15.41140312940206,"endHours":16.96189371823545,"quality":"inauspicious"},{"name":"Chala","start":"16:58","end":"18:31","startHours":16.96189371823545,"endHours":18.512384307068842,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:31","end":"19:58","startHours":18.512384307068842,"endHours":19.96189371823545,"quality":"inauspicious"},{"name":"Udveg","start":"19:58","end":"21:25","startHours":19.96189371823545,"endHours":21.41140312940206,"quality":"inauspicious"},{"name":"Chala","start":"21:25","end":"22:52","startHours":21.41140312940206,"endHours":22.860912540568666,"quality":"neutral"},{"name":"Labha","start":"22:52","end":"00:19","startHours":22.860912540568666,"endHours":24.310421951735275,"quality":"auspicious"},{"name":"Amṛta","start":"00:19","end":"01:46","startHours":24.310421951735275,"endHours":25.759931362901884,"quality":"auspicious"},{"name":"Kāla","start":"01:46","end":"03:13","startHours":25.759931362901884,"endHours":27.20944077406849,"quality":"inauspicious"},{"name":"Śubha","start":"03:13","end":"04:40","startHours":27.20944077406849,"endHours":28.6589501852351,"quality":"auspicious"},{"name":"Roga","start":"04:40","end":"06:07","startHours":28.6589501852351,"endHours":30.10845959640171,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:07","end":"07:07","startHours":6.108459596401709,"endHours":7.108459596401709,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:07","end":"08:07","startHours":7.108459596401709,"endHours":8.108459596401708,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:07","end":"09:07","startHours":8.108459596401708,"endHours":9.108459596401708,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:07","end":"10:07","startHours":9.108459596401708,"endHours":10.108459596401708,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:07","end":"11:07","startHours":10.108459596401708,"endHours":11.108459596401708,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:07","end":"12:07","startHours":11.108459596401708,"endHours":12.108459596401708,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:07","end":"13:07","startHours":12.108459596401708,"endHours":13.108459596401708,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:07","end":"14:07","startHours":13.108459596401708,"endHours":14.108459596401708,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:07","end":"15:07","startHours":14.108459596401708,"endHours":15.108459596401708,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:07","end":"16:07","startHours":15.108459596401708,"endHours":16.10845959640171,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:07","end":"17:07","startHours":16.10845959640171,"endHours":17.10845959640171,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:07","end":"18:07","startHours":17.10845959640171,"endHours":18.10845959640171,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:07","end":"19:07","startHours":18.10845959640171,"endHours":19.10845959640171,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:07","end":"20:07","startHours":19.10845959640171,"endHours":20.10845959640171,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:07","end":"21:07","startHours":20.10845959640171,"endHours":21.10845959640171,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:07","end":"22:07","startHours":21.10845959640171,"endHours":22.10845959640171,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:07","end":"23:07","startHours":22.10845959640171,"endHours":23.10845959640171,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:07","end":"00:07","startHours":23.10845959640171,"endHours":24.10845959640171,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:07","end":"01:07","startHours":24.10845959640171,"endHours":25.10845959640171,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:07","end":"02:07","startHours":25.10845959640171,"endHours":26.10845959640171,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:07","end":"03:07","startHours":26.10845959640171,"endHours":27.10845959640171,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:07","end":"04:07","startHours":27.10845959640171,"endHours":28.10845959640171,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:07","end":"05:07","startHours":28.10845959640171,"endHours":29.10845959640171,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:07","end":"06:07","startHours":29.10845959640171,"endHours":30.10845959640171,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"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":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"South-East","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":10.66246150528664,"eotMinutes":0.5058828958834352,"ayanamsa":23.6615}},"calendars":{"vikram_samvat":2043,"vikram_samvatsara":"Pramāthi","saka_samvat":1908,"saka_samvatsara":"Akṣaya","bengali_samvat":1393,"malayalam_era":1162,"nanakshahi_year":517,"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":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Navamī · Vikram 2043 Pramāthi · Śaka 1908 Akṣaya"},"festivals":[{"id":"rama-navami","name":"Rāma Navamī","name_sanskrit":"राम नवमी","tradition":"Vaishnava","associated_deity":"Rāma (18th avatāra of Krishna)","deity_avatara_index":18,"significance":"Bhagavān Rāma's birth at Ayodhyā. Sūryavaṃśa's most exalted moment.","vrata":true,"primary_observance":"Madhyāhna (noon) abhiṣekam in Ayodhyā tradition","detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":1,"sources":["Vālmīki Rāmāyaṇa, Bāla-Kāṇḍa 1.18"]}],"todays_walk":{"walk":{"id":"rama-navami-walk","name":"Rāma Navamī Walk","name_sanskrit":"राम नवमी यात्रा","type":"festival","description":"Vālmīki Bāla-Kāṇḍa selections + BG 4.7-8 (avatāra principle).","step_count":9,"url":"/walk/rama-navami-walk"},"reason":"Today is Rāma Navamī — its dedicated walk."},"cosmic_resonances":[]},"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 18, 1986 CE · Erode, Tamil Nadu · Vidhyamitra","description":"April 18, 1986 CE for Erode, Tamil Nadu: Śukla Navamī, sūryodaya 06:07, sūryāsta 18:31.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1986-04-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1986-04-18","sa":"https://sa.vidhyamitra.com/city/erode/1986-04-18","hi":"https://hi.vidhyamitra.com/city/erode/1986-04-18","x-default":"https://vidhyamitra.com/city/erode/1986-04-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-05T21:53:50.952Z","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":"2026-09-05T21:53:50.952Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-05T21:53:50.952Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}