{"id":"vidhyamitra:city-day:erode:1975-02-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1975-02-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1975-02-20","date_display":"February 20, 1975 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":1975,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2442463.770833,"kali_year":5076,"ahargana":1853998.2708,"sun":{"sidereal_longitude":307.4446,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":49.75,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":102.3053,"elapsed_within_tithi_degrees":6.3053},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":49.75,"elapsed_within_degrees":9.75},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":357.1946},"karana":{"half_tithi_index":17,"name":"Kaulava"},"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":1975,"month":2,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2442463.770833,"ahargana":1853998.2708,"kali_year":5076,"ayanamsa_lahiri":23.5057,"grahas":{"sun":{"sidereal_longitude":307.2658799999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":45.96767999999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false,"latitude":-0.2745},"mars":{"sidereal_longitude":268.43808,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":286.80888000000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":330.23888,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":332.67808,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":79.04278,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":226.2495,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":46.2495,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":1975,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2442463.770833,"kali_year":5076,"ahargana":1853998.2708,"sun":{"sidereal_longitude":307.4446,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":49.75,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":102.3053,"elapsed_within_tithi_degrees":6.3053},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":49.75,"elapsed_within_degrees":9.75},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":357.1946},"karana":{"half_tithi_index":17,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.274,"elongation":102.305},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.274,"opposition_distance":77.695}},"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":"06:39","sunsetLocal":"18:28","solarNoonLocal":"12:33","dayLengthHours":11.812111057969553,"dayLengthDisplay":"11 Hours 48 Mins 44 Secs","nightLengthDisplay":"12 Hours 11 Mins 16 Secs","moonriseLocal":"12:47","moonsetLocal":"01:29","rahuKala":{"name":"Rāhu Kāla","start":"14:02","end":"15:31","startHours":14.033422966324899,"endHours":15.509936848571092,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:39","end":"08:08","startHours":6.650853555093928,"endHours":8.127367437340123,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:36","end":"11:05","startHours":9.603881319586316,"endHours":11.08039520183251,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:24","end":"09:48","startHours":9.40701280195349,"endHours":9.800749837219142,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:09","end":"07:27","startHours":7.143024849175992,"endHours":7.458014477388514,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:10","end":"12:57","startHours":12.163172048813053,"endHours":12.950646119344356,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:05","end":"05:52","startHours":5.075905414031321,"endHours":5.863379484562625,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:40","end":"06:39","startHours":5.666510966929798,"endHours":6.650853555093928,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:32","end":"15:19","startHours":14.525594260406962,"endHours":15.313068330938265,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:16","end":"18:40","startHours":18.26296461306348,"endHours":18.66296461306348,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:28","end":"18:57","startHours":18.46296461306348,"endHours":18.955135907145547,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:13","end":"19:58","startHours":18.21296461306348,"endHours":19.96296461306348,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:10","end":"00:57","startHours":24.163172048813053,"endHours":24.950646119344356,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:39","end":"08:08","startHours":6.650853555093928,"endHours":8.127367437340123,"quality":"auspicious"},{"name":"Roga","start":"08:08","end":"09:36","startHours":8.127367437340123,"endHours":9.603881319586316,"quality":"inauspicious"},{"name":"Udveg","start":"09:36","end":"11:05","startHours":9.603881319586316,"endHours":11.08039520183251,"quality":"inauspicious"},{"name":"Chala","start":"11:05","end":"12:33","startHours":11.08039520183251,"endHours":12.556909084078704,"quality":"neutral"},{"name":"Labha","start":"12:33","end":"14:02","startHours":12.556909084078704,"endHours":14.033422966324899,"quality":"auspicious"},{"name":"Amṛta","start":"14:02","end":"15:31","startHours":14.033422966324899,"endHours":15.509936848571092,"quality":"auspicious"},{"name":"Kāla","start":"15:31","end":"16:59","startHours":15.509936848571092,"endHours":16.986450730817285,"quality":"inauspicious"},{"name":"Śubha","start":"16:59","end":"18:28","startHours":16.986450730817285,"endHours":18.46296461306348,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:28","end":"19:59","startHours":18.46296461306348,"endHours":19.986450730817285,"quality":"auspicious"},{"name":"Kāla","start":"19:59","end":"21:31","startHours":19.986450730817285,"endHours":21.509936848571094,"quality":"inauspicious"},{"name":"Śubha","start":"21:31","end":"23:02","startHours":21.509936848571094,"endHours":23.0334229663249,"quality":"auspicious"},{"name":"Roga","start":"23:02","end":"00:33","startHours":23.0334229663249,"endHours":24.556909084078704,"quality":"inauspicious"},{"name":"Udveg","start":"00:33","end":"02:05","startHours":24.556909084078704,"endHours":26.08039520183251,"quality":"inauspicious"},{"name":"Chala","start":"02:05","end":"03:36","startHours":26.08039520183251,"endHours":27.603881319586314,"quality":"neutral"},{"name":"Labha","start":"03:36","end":"05:08","startHours":27.603881319586314,"endHours":29.127367437340123,"quality":"auspicious"},{"name":"Amṛta","start":"05:08","end":"06:39","startHours":29.127367437340123,"endHours":30.650853555093928,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:39","end":"07:39","startHours":6.650853555093928,"endHours":7.650853555093928,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:39","end":"08:39","startHours":7.650853555093928,"endHours":8.650853555093928,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:39","end":"09:39","startHours":8.650853555093928,"endHours":9.650853555093928,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:39","end":"10:39","startHours":9.650853555093928,"endHours":10.650853555093928,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:39","end":"11:39","startHours":10.650853555093928,"endHours":11.650853555093928,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:39","end":"12:39","startHours":11.650853555093928,"endHours":12.650853555093928,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:39","end":"13:39","startHours":12.650853555093928,"endHours":13.650853555093928,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:39","end":"14:39","startHours":13.650853555093928,"endHours":14.650853555093928,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:39","end":"15:39","startHours":14.650853555093928,"endHours":15.650853555093928,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:39","end":"16:39","startHours":15.650853555093928,"endHours":16.650853555093928,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:39","end":"17:39","startHours":16.650853555093928,"endHours":17.650853555093928,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:39","end":"18:39","startHours":17.650853555093928,"endHours":18.650853555093928,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:39","end":"19:39","startHours":18.650853555093928,"endHours":19.650853555093928,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:39","end":"20:39","startHours":19.650853555093928,"endHours":20.650853555093928,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:39","end":"21:39","startHours":20.650853555093928,"endHours":21.650853555093928,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:39","end":"22:39","startHours":21.650853555093928,"endHours":22.650853555093928,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:39","end":"23:39","startHours":22.650853555093928,"endHours":23.650853555093928,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:39","end":"00:39","startHours":23.650853555093928,"endHours":24.650853555093928,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:39","end":"01:39","startHours":24.650853555093928,"endHours":25.650853555093928,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:39","end":"02:39","startHours":25.650853555093928,"endHours":26.650853555093928,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:39","end":"03:39","startHours":26.650853555093928,"endHours":27.650853555093928,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:39","end":"04:39","startHours":27.650853555093928,"endHours":28.650853555093928,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:39","end":"05:39","startHours":28.650853555093928,"endHours":29.650853555093928,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:39","end":"06:39","startHours":29.650853555093928,"endHours":30.650853555093928,"planetary_lord":"Moon"}],"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Śubha","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-11.19856676314854,"eotMinutes":-14.28334504472219,"ayanamsa":23.5057}},"calendars":{"vikram_samvat":2032,"vikram_samvatsara":"Vibhava","saka_samvat":1897,"saka_samvatsara":"Rākṣasa","bengali_samvat":1382,"malayalam_era":1151,"nanakshahi_year":506,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Navamī · Vikram 2032 Vibhava · Śaka 1897 Rākṣasa"},"festivals":[],"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":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","relevance":0.5},{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","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 February 20, 1975 CE · Erode, Tamil Nadu · Vidhyamitra","description":"February 20, 1975 CE for Erode, Tamil Nadu: Śukla Navamī, sūryodaya 06:39, sūryāsta 18:28.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1975-02-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1975-02-20","sa":"https://sa.vidhyamitra.com/city/erode/1975-02-20","hi":"https://hi.vidhyamitra.com/city/erode/1975-02-20","x-default":"https://vidhyamitra.com/city/erode/1975-02-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T22:10:20.755Z","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":"2026-05-31T22:10:20.755Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T22:10:20.755Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}