{"id":"vidhyamitra:city-day:erode:2013-07-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2013-07-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2013-07-21","date_display":"July 21, 2013 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":2013,"month":7,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456494.770833,"kali_year":5115,"ahargana":1868029.2708,"sun":{"sidereal_longitude":93.9185,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":251.2921,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":157.3736,"elapsed_within_tithi_degrees":1.3736},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":251.2921,"elapsed_within_degrees":11.2921},"yoga":{"number":26,"name":"Indra","sum_longitude":345.2106},"karana":{"half_tithi_index":26,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2013,"month":7,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456494.770833,"ahargana":1868029.2708,"kali_year":5115,"ayanamsa_lahiri":24.0423,"grahas":{"sun":{"sidereal_longitude":94.419193,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"moon":{"sidereal_longitude":249.964793,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false,"latitude":3.3673},"mars":{"sidereal_longitude":70.83449300000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":78.97059300000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":71.06749300000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":123.975593,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":190.66059300000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":202.8196,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":22.8196,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"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":2013,"month":7,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456494.770833,"kali_year":5115,"ahargana":1868029.2708,"sun":{"sidereal_longitude":93.9185,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":251.2921,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":157.3736,"elapsed_within_tithi_degrees":1.3736},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":251.2921,"elapsed_within_degrees":11.2921},"yoga":{"number":26,"name":"Indra","sum_longitude":345.2106},"karana":{"half_tithi_index":26,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.367,"elongation":157.374},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.367,"opposition_distance":22.626}},"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":"06:04","sunsetLocal":"18:46","solarNoonLocal":"12:25","dayLengthHours":12.693706860781184,"dayLengthDisplay":"12 Hours 41 Mins 37 Secs","nightLengthDisplay":"11 Hours 18 Mins 23 Secs","moonriseLocal":"17:05","moonsetLocal":"04:30","rahuKala":{"name":"Rāhu Kāla","start":"17:11","end":"18:46","startHours":17.17982346338101,"endHours":18.766536820978658,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:25","end":"14:00","startHours":12.419683390588066,"endHours":14.006396748185715,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:36","end":"17:11","startHours":15.593110105783362,"endHours":17.17982346338101,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:02","end":"09:27","startHours":9.03469489437975,"endHours":9.45781845640579,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:36","end":"06:56","startHours":6.601734412730023,"endHours":6.940233262350855,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:00","end":"12:51","startHours":11.996559828562026,"endHours":12.842806952614106,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:23","end":"05:14","startHours":4.380335712093316,"endHours":5.226582836145395,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:01","end":"06:04","startHours":5.015021055132375,"endHours":6.072829960197474,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:32","end":"15:23","startHours":14.535301200718264,"endHours":15.381548324770343,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:34","end":"18:58","startHours":18.56653682097866,"endHours":18.966536820978657,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:46","end":"19:18","startHours":18.766536820978658,"endHours":19.29544127351121,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:31","end":"20:16","startHours":18.516536820978658,"endHours":20.266536820978658,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:00","end":"00:51","startHours":23.996559828562027,"endHours":24.842806952614104,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:04","end":"07:40","startHours":6.072829960197474,"endHours":7.659543317795122,"quality":"inauspicious"},{"name":"Chala","start":"07:40","end":"09:15","startHours":7.659543317795122,"endHours":9.24625667539277,"quality":"neutral"},{"name":"Labha","start":"09:15","end":"10:50","startHours":9.24625667539277,"endHours":10.832970032990417,"quality":"auspicious"},{"name":"Amṛta","start":"10:50","end":"12:25","startHours":10.832970032990417,"endHours":12.419683390588066,"quality":"auspicious"},{"name":"Kāla","start":"12:25","end":"14:00","startHours":12.419683390588066,"endHours":14.006396748185715,"quality":"inauspicious"},{"name":"Śubha","start":"14:00","end":"15:36","startHours":14.006396748185715,"endHours":15.593110105783362,"quality":"auspicious"},{"name":"Roga","start":"15:36","end":"17:11","startHours":15.593110105783362,"endHours":17.17982346338101,"quality":"inauspicious"},{"name":"Udveg","start":"17:11","end":"18:46","startHours":17.17982346338101,"endHours":18.766536820978658,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:46","end":"20:11","startHours":18.766536820978658,"endHours":20.17982346338101,"quality":"auspicious"},{"name":"Roga","start":"20:11","end":"21:36","startHours":20.17982346338101,"endHours":21.59311010578336,"quality":"inauspicious"},{"name":"Udveg","start":"21:36","end":"23:00","startHours":21.59311010578336,"endHours":23.006396748185715,"quality":"inauspicious"},{"name":"Chala","start":"23:00","end":"00:25","startHours":23.006396748185715,"endHours":24.419683390588066,"quality":"neutral"},{"name":"Labha","start":"00:25","end":"01:50","startHours":24.419683390588066,"endHours":25.832970032990417,"quality":"auspicious"},{"name":"Amṛta","start":"01:50","end":"03:15","startHours":25.832970032990417,"endHours":27.24625667539277,"quality":"auspicious"},{"name":"Kāla","start":"03:15","end":"04:40","startHours":27.24625667539277,"endHours":28.659543317795123,"quality":"inauspicious"},{"name":"Śubha","start":"04:40","end":"06:04","startHours":28.659543317795123,"endHours":30.072829960197474,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:04","end":"07:04","startHours":6.072829960197474,"endHours":7.072829960197474,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:04","end":"08:04","startHours":7.072829960197474,"endHours":8.072829960197474,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:04","end":"09:04","startHours":8.072829960197474,"endHours":9.072829960197474,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:04","end":"10:04","startHours":9.072829960197474,"endHours":10.072829960197474,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:04","end":"11:04","startHours":10.072829960197474,"endHours":11.072829960197474,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:04","end":"12:04","startHours":11.072829960197474,"endHours":12.072829960197474,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:04","end":"13:04","startHours":12.072829960197474,"endHours":13.072829960197474,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:04","end":"14:04","startHours":13.072829960197474,"endHours":14.072829960197474,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:04","end":"15:04","startHours":14.072829960197474,"endHours":15.072829960197474,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:04","end":"16:04","startHours":15.072829960197474,"endHours":16.072829960197474,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:04","end":"17:04","startHours":16.072829960197474,"endHours":17.072829960197474,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:04","end":"18:04","startHours":17.072829960197474,"endHours":18.072829960197474,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:04","end":"19:04","startHours":18.072829960197474,"endHours":19.072829960197474,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:04","end":"20:04","startHours":19.072829960197474,"endHours":20.072829960197474,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:04","end":"21:04","startHours":20.072829960197474,"endHours":21.072829960197474,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:04","end":"22:04","startHours":21.072829960197474,"endHours":22.072829960197474,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:04","end":"23:04","startHours":22.072829960197474,"endHours":23.072829960197474,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:04","end":"00:04","startHours":23.072829960197474,"endHours":24.072829960197474,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:04","end":"01:04","startHours":24.072829960197474,"endHours":25.072829960197474,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:04","end":"02:04","startHours":25.072829960197474,"endHours":26.072829960197474,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:04","end":"03:04","startHours":26.072829960197474,"endHours":27.072829960197474,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:04","end":"04:04","startHours":27.072829960197474,"endHours":28.072829960197474,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:04","end":"05:04","startHours":28.072829960197474,"endHours":29.072829960197474,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:04","end":"06:04","startHours":29.072829960197474,"endHours":30.072829960197474,"planetary_lord":"Jupiter"}],"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":"West (Paścim)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"drikRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":20.466616100897742,"eotMinutes":-6.049803435283957,"ayanamsa":24.0423}},"calendars":{"vikram_samvat":2070,"vikram_samvatsara":"Parābhava","saka_samvat":1935,"saka_samvatsara":"Vijaya","bengali_samvat":1420,"malayalam_era":1189,"nanakshahi_year":544,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Caturdaśī · Vikram 2070 Parābhava · Śaka 1935 Vijaya"},"festivals":[{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi":"Karka"},"precedence":2}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 July 21, 2013 CE · Erode, Tamil Nadu · Vidhyamitra","description":"July 21, 2013 CE for Erode, Tamil Nadu: Śukla Caturdaśī, sūryodaya 06:04, sūryāsta 18:46.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2013-07-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2013-07-21","sa":"https://sa.vidhyamitra.com/city/erode/2013-07-21","hi":"https://hi.vidhyamitra.com/city/erode/2013-07-21","x-default":"https://vidhyamitra.com/city/erode/2013-07-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T21:48:46.354Z","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":"2026-05-15T21:48:46.354Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T21:48:46.354Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}