{"id":"vidhyamitra:city-day:erode:1980-02-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1980-02-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1980-02-07","date_display":"February 7, 1980 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":1980,"month":2,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444276.770833,"kali_year":5081,"ahargana":1855811.2708,"sun":{"sidereal_longitude":293.9392,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":182.3019,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":248.3627,"elapsed_within_tithi_degrees":8.3627},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":182.3019,"elapsed_within_degrees":8.9686},"yoga":{"number":9,"name":"Śūla","sum_longitude":116.2412},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1980,"month":2,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444276.770833,"ahargana":1855811.2708,"kali_year":5081,"ayanamsa_lahiri":23.575,"grahas":{"sun":{"sidereal_longitude":293.84001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":178.47801000000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false,"latitude":3.5502},"mars":{"sidereal_longitude":138.95641,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":306.17901000000006,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":133.73121000000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":333.18130999999994,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":152.42791,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":130.1881,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":310.1881,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","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":1980,"month":2,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444276.770833,"kali_year":5081,"ahargana":1855811.2708,"sun":{"sidereal_longitude":293.9392,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":182.3019,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":248.3627,"elapsed_within_tithi_degrees":8.3627},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":182.3019,"elapsed_within_degrees":8.9686},"yoga":{"number":9,"name":"Śūla","sum_longitude":116.2412},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.55,"elongation":111.637},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.55,"opposition_distance":68.363}},"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":"06:43","sunsetLocal":"18:24","solarNoonLocal":"12:34","dayLengthHours":11.68935633064293,"dayLengthDisplay":"11 Hours 41 Mins 22 Secs","nightLengthDisplay":"12 Hours 18 Mins 38 Secs","moonriseLocal":"22:57","moonsetLocal":"10:48","rahuKala":{"name":"Rāhu Kāla","start":"14:01","end":"15:29","startHours":14.019650416486476,"endHours":15.480819957816841,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:43","end":"08:10","startHours":6.713802709834645,"endHours":8.174972251165011,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:38","end":"11:06","startHours":9.636141792495376,"endHours":11.097311333825743,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:26","end":"09:50","startHours":9.44131918698466,"endHours":9.830964398006092,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:12","end":"07:31","startHours":7.200859223611434,"endHours":7.5125753924285785,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:10","end":"12:57","startHours":12.16883566413468,"endHours":12.948126086177542,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:09","end":"05:56","startHours":5.155221865748921,"endHours":5.934512287791783,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:44","end":"06:43","startHours":5.7396896822810675,"endHours":6.713802709834645,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:30","end":"15:17","startHours":14.506706930263265,"endHours":15.285997352306127,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:12","end":"18:36","startHours":18.203159040477576,"endHours":18.603159040477575,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:24","end":"18:53","startHours":18.403159040477576,"endHours":18.890215554254365,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:09","end":"19:54","startHours":18.153159040477576,"endHours":19.903159040477576,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:10","end":"00:57","startHours":24.16883566413468,"endHours":24.948126086177542,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:43","end":"08:10","startHours":6.713802709834645,"endHours":8.174972251165011,"quality":"auspicious"},{"name":"Roga","start":"08:10","end":"09:38","startHours":8.174972251165011,"endHours":9.636141792495376,"quality":"inauspicious"},{"name":"Udveg","start":"09:38","end":"11:06","startHours":9.636141792495376,"endHours":11.097311333825743,"quality":"inauspicious"},{"name":"Chala","start":"11:06","end":"12:34","startHours":11.097311333825743,"endHours":12.55848087515611,"quality":"neutral"},{"name":"Labha","start":"12:34","end":"14:01","startHours":12.55848087515611,"endHours":14.019650416486476,"quality":"auspicious"},{"name":"Amṛta","start":"14:01","end":"15:29","startHours":14.019650416486476,"endHours":15.480819957816841,"quality":"auspicious"},{"name":"Kāla","start":"15:29","end":"16:57","startHours":15.480819957816841,"endHours":16.94198949914721,"quality":"inauspicious"},{"name":"Śubha","start":"16:57","end":"18:24","startHours":16.94198949914721,"endHours":18.403159040477576,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:24","end":"19:57","startHours":18.403159040477576,"endHours":19.94198949914721,"quality":"auspicious"},{"name":"Kāla","start":"19:57","end":"21:29","startHours":19.94198949914721,"endHours":21.48081995781684,"quality":"inauspicious"},{"name":"Śubha","start":"21:29","end":"23:01","startHours":21.48081995781684,"endHours":23.019650416486478,"quality":"auspicious"},{"name":"Roga","start":"23:01","end":"00:34","startHours":23.019650416486478,"endHours":24.55848087515611,"quality":"inauspicious"},{"name":"Udveg","start":"00:34","end":"02:06","startHours":24.55848087515611,"endHours":26.097311333825743,"quality":"inauspicious"},{"name":"Chala","start":"02:06","end":"03:38","startHours":26.097311333825743,"endHours":27.63614179249538,"quality":"neutral"},{"name":"Labha","start":"03:38","end":"05:10","startHours":27.63614179249538,"endHours":29.174972251165013,"quality":"auspicious"},{"name":"Amṛta","start":"05:10","end":"06:43","startHours":29.174972251165013,"endHours":30.713802709834646,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:43","end":"07:43","startHours":6.713802709834645,"endHours":7.713802709834645,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:43","end":"08:43","startHours":7.713802709834645,"endHours":8.713802709834646,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:43","end":"09:43","startHours":8.713802709834646,"endHours":9.713802709834646,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:43","end":"10:43","startHours":9.713802709834646,"endHours":10.713802709834646,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:43","end":"11:43","startHours":10.713802709834646,"endHours":11.713802709834646,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:43","end":"12:43","startHours":11.713802709834646,"endHours":12.713802709834646,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:43","end":"13:43","startHours":12.713802709834646,"endHours":13.713802709834646,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:43","end":"14:43","startHours":13.713802709834646,"endHours":14.713802709834646,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:43","end":"15:43","startHours":14.713802709834646,"endHours":15.713802709834646,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:43","end":"16:43","startHours":15.713802709834646,"endHours":16.713802709834646,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:43","end":"17:43","startHours":16.713802709834646,"endHours":17.713802709834646,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:43","end":"18:43","startHours":17.713802709834646,"endHours":18.713802709834646,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:43","end":"19:43","startHours":18.713802709834646,"endHours":19.713802709834646,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:43","end":"20:43","startHours":19.713802709834646,"endHours":20.713802709834646,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:43","end":"21:43","startHours":20.713802709834646,"endHours":21.713802709834646,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:43","end":"22:43","startHours":21.713802709834646,"endHours":22.713802709834646,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:43","end":"23:43","startHours":22.713802709834646,"endHours":23.713802709834646,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:43","end":"00:43","startHours":23.713802709834646,"endHours":24.713802709834646,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:43","end":"01:43","startHours":24.713802709834646,"endHours":25.713802709834646,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:43","end":"02:43","startHours":25.713802709834646,"endHours":26.713802709834646,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:43","end":"03:43","startHours":26.713802709834646,"endHours":27.713802709834646,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:43","end":"04:43","startHours":27.713802709834646,"endHours":28.713802709834646,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:43","end":"05:43","startHours":28.713802709834646,"endHours":29.713802709834646,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:43","end":"06:43","startHours":29.713802709834646,"endHours":30.713802709834646,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"South (Dakṣiṇa)","chandraVasa":"North-West","rahuVasa":"North-West","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-15.613029133630773,"eotMinutes":-14.37765250936663,"ayanamsa":23.575}},"calendars":{"vikram_samvat":2037,"vikram_samvatsara":"Śrīmukha","saka_samvat":1902,"saka_samvatsara":"Raudra","bengali_samvat":1387,"malayalam_era":1156,"nanakshahi_year":511,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Ṣaṣṭhī · Vikram 2037 Śrīmukha · Śaka 1902 Raudra"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 February 7, 1980 CE · Erode, Tamil Nadu · Vidhyamitra","description":"February 7, 1980 CE for Erode, Tamil Nadu: Kṛṣṇa Ṣaṣṭhī, sūryodaya 06:43, sūryāsta 18:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1980-02-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1980-02-07","sa":"https://sa.vidhyamitra.com/city/erode/1980-02-07","hi":"https://hi.vidhyamitra.com/city/erode/1980-02-07","x-default":"https://vidhyamitra.com/city/erode/1980-02-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-19T05:43:44.666Z","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":"2026-05-19T05:43:44.666Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-19T05:43:44.666Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}