{"id":"vidhyamitra:city-day:erode:1999-04-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1999-04-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1999-04-13","date_display":"April 13, 1999 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":1999,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451281.770833,"kali_year":5100,"ahargana":1862816.2708,"sun":{"sidereal_longitude":358.9799,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":317.4864,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":318.5065,"elapsed_within_tithi_degrees":6.5065},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4,"moon_longitude":317.4864,"elapsed_within_degrees":10.8197},"yoga":{"number":24,"name":"Śukla","sum_longitude":316.4663},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1999,"month":4,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2451281.770833,"ahargana":1862816.2708,"kali_year":5100,"ayanamsa_lahiri":23.8429,"grahas":{"sun":{"sidereal_longitude":358.840368,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":316.19566800000007,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false,"latitude":-1.4233},"mars":{"sidereal_longitude":194.28476799999999,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":true},"mercury":{"sidereal_longitude":331.67586800000004,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":350.058068,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":36.76656800000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":11.049667999999997,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":119.0295,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":299.0295,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":1999,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451281.770833,"kali_year":5100,"ahargana":1862816.2708,"sun":{"sidereal_longitude":358.9799,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":317.4864,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":318.5065,"elapsed_within_tithi_degrees":6.5065},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4,"moon_longitude":317.4864,"elapsed_within_degrees":10.8197},"yoga":{"number":24,"name":"Śukla","sum_longitude":316.4663},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.423,"elongation":41.494},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.423,"opposition_distance":138.506}},"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":"06:09","sunsetLocal":"18:30","solarNoonLocal":"12:20","dayLengthHours":12.352578704122246,"dayLengthDisplay":"12 Hours 21 Mins 09 Secs","nightLengthDisplay":"11 Hours 38 Mins 51 Secs","moonriseLocal":"03:33","moonsetLocal":"15:25","rahuKala":{"name":"Rāhu Kāla","start":"15:25","end":"16:58","startHours":15.419828189858967,"endHours":16.963900527874245,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:15","end":"10:47","startHours":9.243538837797843,"endHours":10.787611175813124,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:20","end":"13:53","startHours":12.331683513828406,"endHours":13.875755851843685,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:02","end":"09:27","startHours":9.037662526062473,"endHours":9.449415149533214,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:40","end":"07:00","startHours":6.670084941105708,"endHours":6.999487039882301,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:45","startHours":11.919930890357664,"endHours":12.743436137299147,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:31","end":"05:20","startHours":4.508383667884315,"endHours":5.331888914825798,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:08","end":"06:09","startHours":5.126012603090428,"endHours":6.155394161767282,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:23","end":"15:13","startHours":14.390446631182112,"endHours":15.213951878123595,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:18","end":"18:42","startHours":18.30797286588953,"endHours":18.707972865889527,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:30","end":"19:01","startHours":18.507972865889528,"endHours":19.022663645227954,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:15","end":"20:00","startHours":18.257972865889528,"endHours":20.007972865889528,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:45","startHours":23.919930890357666,"endHours":24.743436137299145,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:09","end":"07:42","startHours":6.155394161767282,"endHours":7.699466499782562,"quality":"inauspicious"},{"name":"Udveg","start":"07:42","end":"09:15","startHours":7.699466499782562,"endHours":9.243538837797843,"quality":"inauspicious"},{"name":"Chala","start":"09:15","end":"10:47","startHours":9.243538837797843,"endHours":10.787611175813124,"quality":"neutral"},{"name":"Labha","start":"10:47","end":"12:20","startHours":10.787611175813124,"endHours":12.331683513828406,"quality":"auspicious"},{"name":"Amṛta","start":"12:20","end":"13:53","startHours":12.331683513828406,"endHours":13.875755851843685,"quality":"auspicious"},{"name":"Kāla","start":"13:53","end":"15:25","startHours":13.875755851843685,"endHours":15.419828189858967,"quality":"inauspicious"},{"name":"Śubha","start":"15:25","end":"16:58","startHours":15.419828189858967,"endHours":16.963900527874245,"quality":"auspicious"},{"name":"Roga","start":"16:58","end":"18:30","startHours":16.963900527874245,"endHours":18.507972865889528,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:30","end":"19:58","startHours":18.507972865889528,"endHours":19.963900527874248,"quality":"inauspicious"},{"name":"Śubha","start":"19:58","end":"21:25","startHours":19.963900527874248,"endHours":21.419828189858965,"quality":"auspicious"},{"name":"Roga","start":"21:25","end":"22:53","startHours":21.419828189858965,"endHours":22.875755851843685,"quality":"inauspicious"},{"name":"Udveg","start":"22:53","end":"00:20","startHours":22.875755851843685,"endHours":24.331683513828406,"quality":"inauspicious"},{"name":"Chala","start":"00:20","end":"01:47","startHours":24.331683513828406,"endHours":25.787611175813126,"quality":"neutral"},{"name":"Labha","start":"01:47","end":"03:15","startHours":25.787611175813126,"endHours":27.243538837797843,"quality":"auspicious"},{"name":"Amṛta","start":"03:15","end":"04:42","startHours":27.243538837797843,"endHours":28.699466499782563,"quality":"auspicious"},{"name":"Kāla","start":"04:42","end":"06:09","startHours":28.699466499782563,"endHours":30.155394161767283,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:09","end":"07:09","startHours":6.155394161767282,"endHours":7.155394161767282,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:09","end":"08:09","startHours":7.155394161767282,"endHours":8.155394161767282,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:09","end":"09:09","startHours":8.155394161767282,"endHours":9.155394161767282,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:09","end":"10:09","startHours":9.155394161767282,"endHours":10.155394161767282,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:09","end":"11:09","startHours":10.155394161767282,"endHours":11.155394161767282,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:09","end":"12:09","startHours":11.155394161767282,"endHours":12.155394161767282,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:09","end":"13:09","startHours":12.155394161767282,"endHours":13.155394161767282,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:09","end":"14:09","startHours":13.155394161767282,"endHours":14.155394161767282,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:09","end":"15:09","startHours":14.155394161767282,"endHours":15.155394161767282,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:09","end":"16:09","startHours":15.155394161767282,"endHours":16.155394161767283,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:09","end":"17:09","startHours":16.155394161767283,"endHours":17.155394161767283,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:09","end":"18:09","startHours":17.155394161767283,"endHours":18.155394161767283,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:09","end":"19:09","startHours":18.155394161767283,"endHours":19.155394161767283,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:09","end":"20:09","startHours":19.155394161767283,"endHours":20.155394161767283,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:09","end":"21:09","startHours":20.155394161767283,"endHours":21.155394161767283,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:09","end":"22:09","startHours":21.155394161767283,"endHours":22.155394161767283,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:09","end":"23:09","startHours":22.155394161767283,"endHours":23.155394161767283,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:09","end":"00:09","startHours":23.155394161767283,"endHours":24.155394161767283,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:09","end":"01:09","startHours":24.155394161767283,"endHours":25.155394161767283,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:09","end":"02:09","startHours":25.155394161767283,"endHours":26.155394161767283,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:09","end":"03:09","startHours":26.155394161767283,"endHours":27.155394161767283,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:09","end":"04:09","startHours":27.155394161767283,"endHours":28.155394161767283,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:09","end":"05:09","startHours":28.155394161767283,"endHours":29.155394161767283,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:09","end":"06:09","startHours":29.155394161767283,"endHours":30.155394161767283,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":8.822865315900456,"eotMinutes":-0.7698108297043191,"ayanamsa":23.8429}},"calendars":{"vikram_samvat":2056,"vikram_samvatsara":"Nandana","saka_samvat":1921,"saka_samvatsara":"Pramāthi","bengali_samvat":1406,"malayalam_era":1175,"nanakshahi_year":530,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Dvādaśī · Vikram 2056 Nandana · Śaka 1921 Pramāthi"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 April 13, 1999 CE · Erode, Tamil Nadu · Vidhyamitra","description":"April 13, 1999 CE for Erode, Tamil Nadu: Kṛṣṇa Dvādaśī, sūryodaya 06:09, sūryāsta 18:30.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1999-04-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1999-04-13","sa":"https://sa.vidhyamitra.com/city/erode/1999-04-13","hi":"https://hi.vidhyamitra.com/city/erode/1999-04-13","x-default":"https://vidhyamitra.com/city/erode/1999-04-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T22:57:40.199Z","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":"2026-05-31T22:57:40.199Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T22:57:40.199Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}