{"id":"vidhyamitra:city-day:erode:1991-06-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1991-06-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1991-06-13","date_display":"June 13, 1991 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":1991,"month":6,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448420.770833,"kali_year":5093,"ahargana":1859955.2708,"sun":{"sidereal_longitude":57.6381,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":64.107,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":6.4689,"elapsed_within_tithi_degrees":6.4689},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":64.107,"elapsed_within_degrees":10.7737},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":121.7451},"karana":{"half_tithi_index":1,"name":"Bava"},"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":1991,"month":6,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2448420.770833,"ahargana":1859955.2708,"kali_year":5093,"ayanamsa_lahiri":23.7335,"grahas":{"sun":{"sidereal_longitude":57.823779,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":65.45457899999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false,"latitude":2.0071},"mars":{"sidereal_longitude":106.74447900000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":52.72967900000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":107.13957900000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":103.27837899999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":282.37177900000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":270.619,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":90.619,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","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":1991,"month":6,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448420.770833,"kali_year":5093,"ahargana":1859955.2708,"sun":{"sidereal_longitude":57.6381,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":64.107,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":6.4689,"elapsed_within_tithi_degrees":6.4689},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":64.107,"elapsed_within_degrees":10.7737},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":121.7451},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.007,"elongation":6.469},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.007,"opposition_distance":173.531}},"eclipse_window_40days":[{"offset_days":14,"type":"lunar","occurs":true,"moon_latitude":-1.455,"opposition_distance":0.095}]},"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":"05:56","sunsetLocal":"18:42","solarNoonLocal":"12:19","dayLengthHours":12.780241325084276,"dayLengthDisplay":"12 Hours 46 Mins 49 Secs","nightLengthDisplay":"11 Hours 13 Mins 11 Secs","moonriseLocal":"06:27","moonsetLocal":"19:12","rahuKala":{"name":"Rāhu Kāla","start":"13:55","end":"15:31","startHours":13.912797172325519,"endHours":15.510327337961055,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:56","end":"07:31","startHours":5.925146344147847,"endHours":7.522676509783381,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:07","end":"10:43","startHours":9.120206675418917,"endHours":10.71773684105445,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:20","startHours":8.907202653334178,"endHours":9.333210697503654,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:27","end":"06:48","startHours":6.457656399359692,"endHours":6.798462834695273,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:44","startHours":11.88925896252051,"endHours":12.741275050859462,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:13","end":"05:04","startHours":4.221114167469944,"endHours":5.073130255808895,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:52","end":"05:56","startHours":4.8601262337241575,"endHours":5.925146344147847,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:27","end":"15:18","startHours":14.445307227537363,"endHours":15.297323315876314,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:30","end":"18:54","startHours":18.505387669232125,"endHours":18.905387669232123,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:42","end":"19:14","startHours":18.705387669232124,"endHours":19.237897724443968,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:27","end":"20:12","startHours":18.455387669232124,"endHours":20.205387669232124,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:44","startHours":23.88925896252051,"endHours":24.74127505085946,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:56","end":"07:31","startHours":5.925146344147847,"endHours":7.522676509783381,"quality":"auspicious"},{"name":"Roga","start":"07:31","end":"09:07","startHours":7.522676509783381,"endHours":9.120206675418917,"quality":"inauspicious"},{"name":"Udveg","start":"09:07","end":"10:43","startHours":9.120206675418917,"endHours":10.71773684105445,"quality":"inauspicious"},{"name":"Chala","start":"10:43","end":"12:19","startHours":10.71773684105445,"endHours":12.315267006689986,"quality":"neutral"},{"name":"Labha","start":"12:19","end":"13:55","startHours":12.315267006689986,"endHours":13.912797172325519,"quality":"auspicious"},{"name":"Amṛta","start":"13:55","end":"15:31","startHours":13.912797172325519,"endHours":15.510327337961055,"quality":"auspicious"},{"name":"Kāla","start":"15:31","end":"17:06","startHours":15.510327337961055,"endHours":17.107857503596588,"quality":"inauspicious"},{"name":"Śubha","start":"17:06","end":"18:42","startHours":17.107857503596588,"endHours":18.705387669232124,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:42","end":"20:06","startHours":18.705387669232124,"endHours":20.10785750359659,"quality":"auspicious"},{"name":"Kāla","start":"20:06","end":"21:31","startHours":20.10785750359659,"endHours":21.510327337961055,"quality":"inauspicious"},{"name":"Śubha","start":"21:31","end":"22:55","startHours":21.510327337961055,"endHours":22.91279717232552,"quality":"auspicious"},{"name":"Roga","start":"22:55","end":"00:19","startHours":22.91279717232552,"endHours":24.315267006689986,"quality":"inauspicious"},{"name":"Udveg","start":"00:19","end":"01:43","startHours":24.315267006689986,"endHours":25.717736841054453,"quality":"inauspicious"},{"name":"Chala","start":"01:43","end":"03:07","startHours":25.717736841054453,"endHours":27.120206675418917,"quality":"neutral"},{"name":"Labha","start":"03:07","end":"04:31","startHours":27.120206675418917,"endHours":28.52267650978338,"quality":"auspicious"},{"name":"Amṛta","start":"04:31","end":"05:56","startHours":28.52267650978338,"endHours":29.925146344147848,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:56","end":"06:56","startHours":5.925146344147847,"endHours":6.925146344147847,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:56","end":"07:56","startHours":6.925146344147847,"endHours":7.925146344147847,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:56","end":"08:56","startHours":7.925146344147847,"endHours":8.925146344147848,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:56","end":"09:56","startHours":8.925146344147848,"endHours":9.925146344147848,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:56","end":"10:56","startHours":9.925146344147848,"endHours":10.925146344147848,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:56","end":"11:56","startHours":10.925146344147848,"endHours":11.925146344147848,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:56","end":"12:56","startHours":11.925146344147848,"endHours":12.925146344147848,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:56","end":"13:56","startHours":12.925146344147848,"endHours":13.925146344147848,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:56","end":"14:56","startHours":13.925146344147848,"endHours":14.925146344147848,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:56","end":"15:56","startHours":14.925146344147848,"endHours":15.925146344147848,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:56","end":"16:56","startHours":15.925146344147848,"endHours":16.925146344147848,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:56","end":"17:56","startHours":16.925146344147848,"endHours":17.925146344147848,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:56","end":"18:56","startHours":17.925146344147848,"endHours":18.925146344147848,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:56","end":"19:56","startHours":18.925146344147848,"endHours":19.925146344147848,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:56","end":"20:56","startHours":19.925146344147848,"endHours":20.925146344147848,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:56","end":"21:56","startHours":20.925146344147848,"endHours":21.925146344147848,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:56","end":"22:56","startHours":21.925146344147848,"endHours":22.925146344147848,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:56","end":"23:56","startHours":22.925146344147848,"endHours":23.925146344147848,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:56","end":"00:56","startHours":23.925146344147848,"endHours":24.925146344147848,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:56","end":"01:56","startHours":24.925146344147848,"endHours":25.925146344147848,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:56","end":"02:56","startHours":25.925146344147848,"endHours":26.925146344147848,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:56","end":"03:56","startHours":26.925146344147848,"endHours":27.925146344147848,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:56","end":"04:56","startHours":27.925146344147848,"endHours":28.925146344147848,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:56","end":"05:56","startHours":28.925146344147848,"endHours":29.925146344147848,"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":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South","rahuVasa":"North-West","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":23.16761249126005,"eotMinutes":0.2151795986009022,"ayanamsa":23.7335}},"calendars":{"vikram_samvat":2048,"vikram_samvatsara":"Tāraṇa","saka_samvat":1913,"saka_samvatsara":"Prajāpati","bengali_samvat":1398,"malayalam_era":1167,"nanakshahi_year":522,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Jyeṣṭha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Śukla Pratipada · Vikram 2048 Tāraṇa · Śaka 1913 Prajāpati"},"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":[]},"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 June 13, 1991 CE · Erode, Tamil Nadu · Vidhyamitra","description":"June 13, 1991 CE for Erode, Tamil Nadu: Śukla Pratipada, sūryodaya 05:56, sūryāsta 18:42.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1991-06-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1991-06-13","sa":"https://sa.vidhyamitra.com/city/erode/1991-06-13","hi":"https://hi.vidhyamitra.com/city/erode/1991-06-13","x-default":"https://vidhyamitra.com/city/erode/1991-06-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T08:00:24.132Z","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":"2026-06-01T08:00:24.132Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T08:00:24.132Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}