{"id":"vidhyamitra:city-day:erode:1981-01-05:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1981-01-05","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-01-05","date_display":"January 5, 1981 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":1981,"month":1,"day":5,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444609.770833,"kali_year":5082,"ahargana":1856144.2708,"sun":{"sidereal_longitude":260.881,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":244.8595,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":343.9785,"elapsed_within_tithi_degrees":7.9785},"nakshatra":{"number":19,"name":"Mūla","pada":2,"moon_longitude":244.8595,"elapsed_within_degrees":4.8595},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":145.7406},"karana":{"half_tithi_index":57,"name":"Śakuni"},"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":1981,"month":1,"day":5,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444609.770833,"ahargana":1856144.2708,"kali_year":5082,"ayanamsa_lahiri":23.5878,"grahas":{"sun":{"sidereal_longitude":261.03158699999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":246.11898700000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false,"latitude":3.326},"mars":{"sidereal_longitude":280.741987,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":264.11728700000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":166.23308699999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"venus":{"sidereal_longitude":238.875987,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":165.788187,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":112.5441,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":292.5441,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"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":1981,"month":1,"day":5,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444609.770833,"kali_year":5082,"ahargana":1856144.2708,"sun":{"sidereal_longitude":260.881,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":244.8595,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":343.9785,"elapsed_within_tithi_degrees":7.9785},"nakshatra":{"number":19,"name":"Mūla","pada":2,"moon_longitude":244.8595,"elapsed_within_degrees":4.8595},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":145.7406},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.326,"elongation":16.022},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.326,"opposition_distance":163.978}},"eclipse_window_40days":[{"offset_days":15,"type":"lunar","occurs":true,"moon_latitude":-1.332,"opposition_distance":1.776}]},"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":"06:40","sunsetLocal":"18:09","solarNoonLocal":"12:25","dayLengthHours":11.483451234540787,"dayLengthDisplay":"11 Hours 29 Mins 00 Secs","nightLengthDisplay":"12 Hours 31 Mins 00 Secs","moonriseLocal":"05:42","moonsetLocal":"17:08","rahuKala":{"name":"Rāhu Kāla","start":"08:06","end":"09:32","startHours":8.103438630783256,"endHours":9.538870035100853,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:58","end":"12:25","startHours":10.974301439418452,"endHours":12.409732843736052,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:51","end":"15:17","startHours":13.84516424805365,"endHours":15.280595652371247,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:21","end":"09:44","startHours":9.34747918119184,"endHours":9.730260889009866,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:09","end":"07:27","startHours":7.14648436123819,"endHours":7.452709727492611,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:48","startHours":12.026951135918026,"endHours":12.792514551554078,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:08","end":"05:54","startHours":5.136880395193552,"endHours":5.902443810829604,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:43","end":"06:40","startHours":5.711052956920591,"endHours":6.668007226465657,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:19","end":"15:05","startHours":14.323641382826182,"endHours":15.089204798462234,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.951458461006446,"endHours":18.351458461006445,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:38","startHours":18.151458461006445,"endHours":18.629935595778978,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.901458461006445,"endHours":19.651458461006445,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:48","startHours":24.026951135918026,"endHours":24.792514551554078,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:40","end":"08:06","startHours":6.668007226465657,"endHours":8.103438630783256,"quality":"auspicious"},{"name":"Kāla","start":"08:06","end":"09:32","startHours":8.103438630783256,"endHours":9.538870035100853,"quality":"inauspicious"},{"name":"Śubha","start":"09:32","end":"10:58","startHours":9.538870035100853,"endHours":10.974301439418452,"quality":"auspicious"},{"name":"Roga","start":"10:58","end":"12:25","startHours":10.974301439418452,"endHours":12.409732843736052,"quality":"inauspicious"},{"name":"Udveg","start":"12:25","end":"13:51","startHours":12.409732843736052,"endHours":13.84516424805365,"quality":"inauspicious"},{"name":"Chala","start":"13:51","end":"15:17","startHours":13.84516424805365,"endHours":15.280595652371247,"quality":"neutral"},{"name":"Labha","start":"15:17","end":"16:43","startHours":15.280595652371247,"endHours":16.716027056688848,"quality":"auspicious"},{"name":"Amṛta","start":"16:43","end":"18:09","startHours":16.716027056688848,"endHours":18.151458461006445,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:09","end":"19:43","startHours":18.151458461006445,"endHours":19.716027056688848,"quality":"neutral"},{"name":"Labha","start":"19:43","end":"21:17","startHours":19.716027056688848,"endHours":21.280595652371247,"quality":"auspicious"},{"name":"Amṛta","start":"21:17","end":"22:51","startHours":21.280595652371247,"endHours":22.84516424805365,"quality":"auspicious"},{"name":"Kāla","start":"22:51","end":"00:25","startHours":22.84516424805365,"endHours":24.40973284373605,"quality":"inauspicious"},{"name":"Śubha","start":"00:25","end":"01:58","startHours":24.40973284373605,"endHours":25.974301439418454,"quality":"auspicious"},{"name":"Roga","start":"01:58","end":"03:32","startHours":25.974301439418454,"endHours":27.538870035100857,"quality":"inauspicious"},{"name":"Udveg","start":"03:32","end":"05:06","startHours":27.538870035100857,"endHours":29.103438630783256,"quality":"inauspicious"},{"name":"Chala","start":"05:06","end":"06:40","startHours":29.103438630783256,"endHours":30.668007226465658,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:40","end":"07:40","startHours":6.668007226465657,"endHours":7.668007226465657,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:40","end":"08:40","startHours":7.668007226465657,"endHours":8.668007226465658,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:40","end":"09:40","startHours":8.668007226465658,"endHours":9.668007226465658,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:40","end":"10:40","startHours":9.668007226465658,"endHours":10.668007226465658,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:40","end":"11:40","startHours":10.668007226465658,"endHours":11.668007226465658,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:40","end":"12:40","startHours":11.668007226465658,"endHours":12.668007226465658,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:40","end":"13:40","startHours":12.668007226465658,"endHours":13.668007226465658,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:40","end":"14:40","startHours":13.668007226465658,"endHours":14.668007226465658,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:40","end":"15:40","startHours":14.668007226465658,"endHours":15.668007226465658,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:40","end":"16:40","startHours":15.668007226465658,"endHours":16.668007226465658,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:40","end":"17:40","startHours":16.668007226465658,"endHours":17.668007226465658,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:40","end":"18:40","startHours":17.668007226465658,"endHours":18.668007226465658,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:40","end":"19:40","startHours":18.668007226465658,"endHours":19.668007226465658,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:40","end":"20:40","startHours":19.668007226465658,"endHours":20.668007226465658,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:40","end":"21:40","startHours":20.668007226465658,"endHours":21.668007226465658,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:40","end":"22:40","startHours":21.668007226465658,"endHours":22.668007226465658,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:40","end":"23:40","startHours":22.668007226465658,"endHours":23.668007226465658,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:40","end":"00:40","startHours":23.668007226465658,"endHours":24.668007226465658,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:40","end":"01:40","startHours":24.668007226465658,"endHours":25.668007226465658,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:40","end":"02:40","startHours":25.668007226465658,"endHours":26.668007226465658,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:40","end":"03:40","startHours":26.668007226465658,"endHours":27.668007226465658,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:40","end":"04:40","startHours":27.668007226465658,"endHours":28.668007226465658,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:40","end":"05:40","startHours":28.668007226465658,"endHours":29.668007226465658,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:40","end":"06:40","startHours":29.668007226465658,"endHours":30.668007226465658,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-22.634763902204096,"eotMinutes":-5.452770624163118,"ayanamsa":23.5878}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Caturdaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5},{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":[]},"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 January 5, 1981 CE · Erode, Tamil Nadu · Vidhyamitra","description":"January 5, 1981 CE for Erode, Tamil Nadu: Kṛṣṇa Caturdaśī, sūryodaya 06:40, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1981-01-05","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1981-01-05","sa":"https://sa.vidhyamitra.com/city/erode/1981-01-05","hi":"https://hi.vidhyamitra.com/city/erode/1981-01-05","x-default":"https://vidhyamitra.com/city/erode/1981-01-05"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T17:31:14.562Z","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":"2026-05-18T17:31:14.562Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T17:31:14.562Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}