{"id":"vidhyamitra:city-day:erode:1978-01-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1978-01-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1978-01-13","date_display":"January 13, 1978 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":1978,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443521.770833,"kali_year":5079,"ahargana":1855056.2708,"sun":{"sidereal_longitude":268.8725,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":319.6103,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":50.7377,"elapsed_within_tithi_degrees":2.7377},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4,"moon_longitude":319.6103,"elapsed_within_degrees":12.9436},"yoga":{"number":18,"name":"Varīyān","sum_longitude":228.4828},"karana":{"half_tithi_index":8,"name":"Bava"},"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":1978,"month":1,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2443521.770833,"ahargana":1855056.2708,"kali_year":5079,"ayanamsa_lahiri":23.5461,"grahas":{"sun":{"sidereal_longitude":268.949257,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":321.746257,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false,"latitude":2.2877},"mars":{"sidereal_longitude":101.92485699999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":true},"mercury":{"sidereal_longitude":245.77235700000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":64.57595700000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":267.06845699999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":126.017157,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":170.1916,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":350.1916,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","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":1978,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443521.770833,"kali_year":5079,"ahargana":1855056.2708,"sun":{"sidereal_longitude":268.8725,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":319.6103,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":50.7377,"elapsed_within_tithi_degrees":2.7377},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4,"moon_longitude":319.6103,"elapsed_within_degrees":12.9436},"yoga":{"number":18,"name":"Varīyān","sum_longitude":228.4828},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.288,"elongation":50.738},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.288,"opposition_distance":129.262}},"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":"06:42","sunsetLocal":"18:13","solarNoonLocal":"12:28","dayLengthHours":11.51608176004745,"dayLengthDisplay":"11 Hours 30 Mins 58 Secs","nightLengthDisplay":"12 Hours 29 Mins 02 Secs","moonriseLocal":"10:01","moonsetLocal":"21:57","rahuKala":{"name":"Rāhu Kāla","start":"11:01","end":"12:28","startHours":11.023275304850294,"endHours":12.462785524856226,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:21","end":"16:47","startHours":15.341805964868088,"endHours":16.78131618487402,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:09","end":"09:35","startHours":8.144254864838432,"endHours":9.583765084844362,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:24","end":"09:47","startHours":9.391830388843573,"endHours":9.775699780845153,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:11","end":"07:30","startHours":7.184581384834477,"endHours":7.491676898435742,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:51","startHours":12.078916132854644,"endHours":12.846654916857808,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:10","end":"05:56","startHours":5.1692670768261735,"endHours":5.937005860829337,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:45","end":"06:42","startHours":5.745071164828546,"endHours":6.7047446448325,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:23","end":"15:09","startHours":14.382132484864133,"endHours":15.149871268867297,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:01","end":"18:25","startHours":18.02082640487995,"endHours":18.42082640487995,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:13","end":"18:42","startHours":18.22082640487995,"endHours":18.70066314488193,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:58","end":"19:43","startHours":17.97082640487995,"endHours":19.72082640487995,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:51","startHours":24.078916132854644,"endHours":24.84665491685781,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:42","end":"08:09","startHours":6.7047446448325,"endHours":8.144254864838432,"quality":"neutral"},{"name":"Labha","start":"08:09","end":"09:35","startHours":8.144254864838432,"endHours":9.583765084844362,"quality":"auspicious"},{"name":"Amṛta","start":"09:35","end":"11:01","startHours":9.583765084844362,"endHours":11.023275304850294,"quality":"auspicious"},{"name":"Kāla","start":"11:01","end":"12:28","startHours":11.023275304850294,"endHours":12.462785524856226,"quality":"inauspicious"},{"name":"Śubha","start":"12:28","end":"13:54","startHours":12.462785524856226,"endHours":13.902295744862156,"quality":"auspicious"},{"name":"Roga","start":"13:54","end":"15:21","startHours":13.902295744862156,"endHours":15.341805964868088,"quality":"inauspicious"},{"name":"Udveg","start":"15:21","end":"16:47","startHours":15.341805964868088,"endHours":16.78131618487402,"quality":"inauspicious"},{"name":"Chala","start":"16:47","end":"18:13","startHours":16.78131618487402,"endHours":18.22082640487995,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:13","end":"19:47","startHours":18.22082640487995,"endHours":19.78131618487402,"quality":"inauspicious"},{"name":"Udveg","start":"19:47","end":"21:21","startHours":19.78131618487402,"endHours":21.341805964868087,"quality":"inauspicious"},{"name":"Chala","start":"21:21","end":"22:54","startHours":21.341805964868087,"endHours":22.90229574486216,"quality":"neutral"},{"name":"Labha","start":"22:54","end":"00:28","startHours":22.90229574486216,"endHours":24.462785524856226,"quality":"auspicious"},{"name":"Amṛta","start":"00:28","end":"02:01","startHours":24.462785524856226,"endHours":26.023275304850294,"quality":"auspicious"},{"name":"Kāla","start":"02:01","end":"03:35","startHours":26.023275304850294,"endHours":27.583765084844362,"quality":"inauspicious"},{"name":"Śubha","start":"03:35","end":"05:09","startHours":27.583765084844362,"endHours":29.14425486483843,"quality":"auspicious"},{"name":"Roga","start":"05:09","end":"06:42","startHours":29.14425486483843,"endHours":30.704744644832502,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:42","end":"07:42","startHours":6.7047446448325,"endHours":7.7047446448325,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:42","end":"08:42","startHours":7.7047446448325,"endHours":8.7047446448325,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:42","end":"09:42","startHours":8.7047446448325,"endHours":9.7047446448325,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:42","end":"10:42","startHours":9.7047446448325,"endHours":10.7047446448325,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:42","end":"11:42","startHours":10.7047446448325,"endHours":11.7047446448325,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:42","end":"12:42","startHours":11.7047446448325,"endHours":12.7047446448325,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:42","end":"13:42","startHours":12.7047446448325,"endHours":13.7047446448325,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:42","end":"14:42","startHours":13.7047446448325,"endHours":14.7047446448325,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:42","end":"15:42","startHours":14.7047446448325,"endHours":15.7047446448325,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:42","end":"16:42","startHours":15.7047446448325,"endHours":16.704744644832502,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:42","end":"17:42","startHours":16.704744644832502,"endHours":17.704744644832502,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:42","end":"18:42","startHours":17.704744644832502,"endHours":18.704744644832502,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:42","end":"19:42","startHours":18.704744644832502,"endHours":19.704744644832502,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:42","end":"20:42","startHours":19.704744644832502,"endHours":20.704744644832502,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:42","end":"21:42","startHours":20.704744644832502,"endHours":21.704744644832502,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:42","end":"22:42","startHours":21.704744644832502,"endHours":22.704744644832502,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:42","end":"23:42","startHours":22.704744644832502,"endHours":23.704744644832502,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:42","end":"00:42","startHours":23.704744644832502,"endHours":24.704744644832502,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:42","end":"01:42","startHours":24.704744644832502,"endHours":25.704744644832502,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:42","end":"02:42","startHours":25.704744644832502,"endHours":26.704744644832502,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:42","end":"03:42","startHours":26.704744644832502,"endHours":27.704744644832502,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:42","end":"04:42","startHours":27.704744644832502,"endHours":28.704744644832502,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:42","end":"05:42","startHours":28.704744644832502,"endHours":29.704744644832502,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:42","end":"06:42","startHours":29.704744644832502,"endHours":30.704744644832502,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"South-East","anandadiYoga":{"name":"Utpāta","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":-21.559621527479088,"eotMinutes":-8.635931491373626,"ayanamsa":23.5461}},"calendars":{"vikram_samvat":2035,"vikram_samvatsara":"Prajāpati","saka_samvat":1900,"saka_samvatsara":"Kālayukta","bengali_samvat":1385,"malayalam_era":1154,"nanakshahi_year":509,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Pañcamī · Vikram 2035 Prajāpati · Śaka 1900 Kālayukta"},"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}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 13, 1978 CE · Erode, Tamil Nadu · Vidhyamitra","description":"January 13, 1978 CE for Erode, Tamil Nadu: Śukla Pañcamī, sūryodaya 06:42, sūryāsta 18:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1978-01-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1978-01-13","sa":"https://sa.vidhyamitra.com/city/erode/1978-01-13","hi":"https://hi.vidhyamitra.com/city/erode/1978-01-13","x-default":"https://vidhyamitra.com/city/erode/1978-01-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T22:20:55.909Z","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":"2026-05-18T22:20:55.909Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T22:20:55.909Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}