{"id":"vidhyamitra:city-day:ayodhya:2015-09-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2015-09-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2015-09-13","date_display":"September 13, 2015 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":2015,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457278.770833,"kali_year":5117,"ahargana":1868813.2708,"sun":{"sidereal_longitude":145.1214,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":143.5132,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":358.3919,"elapsed_within_tithi_degrees":10.3919},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":143.5132,"elapsed_within_degrees":10.1799},"yoga":{"number":22,"name":"Sādhya","sum_longitude":288.6346},"karana":{"half_tithi_index":59,"name":"Nāga"},"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":2015,"month":9,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457278.770833,"ahargana":1868813.2708,"kali_year":5117,"ayanamsa_lahiri":24.0723,"grahas":{"sun":{"sidereal_longitude":145.880338,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":143.27713800000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false,"latitude":-1.3718},"mars":{"sidereal_longitude":118.16363799999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":170.73793799999999,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":132.24113799999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":110.82673799999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":215.36443800000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":161.2796,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":341.2796,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","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":2015,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457278.770833,"kali_year":5117,"ahargana":1868813.2708,"sun":{"sidereal_longitude":145.1214,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":143.5132,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":358.3919,"elapsed_within_tithi_degrees":10.3919},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":143.5132,"elapsed_within_degrees":10.1799},"yoga":{"number":22,"name":"Sādhya","sum_longitude":288.6346},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":true,"moon_latitude":-1.372,"elongation":1.608},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.372,"opposition_distance":178.392}},"eclipse_window_40days":[{"offset_days":0,"type":"solar","occurs":true,"moon_latitude":-1.372,"elongation":1.608},{"offset_days":15,"type":"lunar","occurs":true,"moon_latitude":0.154,"opposition_distance":1.236}]},"city":{"slug":"ayodhya","name":"Ayodhyā","lat":26.799,"lon":82.204,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"ayodhya","name":"Ayodhyā","lat":26.799,"lon":82.204,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"05:45","sunsetLocal":"18:08","solarNoonLocal":"11:56","dayLengthHours":12.39330694983123,"dayLengthDisplay":"12 Hours 23 Mins 36 Secs","nightLengthDisplay":"11 Hours 36 Mins 24 Secs","moonriseLocal":"05:33","moonsetLocal":"17:59","rahuKala":{"name":"Rāhu Kāla","start":"16:35","end":"18:08","startHours":16.58799225735561,"endHours":18.137155626084514,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:56","end":"13:29","startHours":11.9405021511689,"endHours":13.489665519897802,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:02","end":"16:35","startHours":15.038828888626707,"endHours":16.58799225735561,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:03","startHours":8.635620297880571,"endHours":9.048730529541611,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:16","end":"06:35","startHours":6.2602364658295855,"endHours":6.5907246511584185,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:32","end":"12:21","startHours":11.52739191950786,"endHours":12.35361238282994,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:05","end":"04:55","startHours":4.09140774960912,"endHours":4.917628212931202,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:43","end":"05:45","startHours":4.711073097100682,"endHours":5.743848676253284,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:00","end":"14:50","startHours":14.006053309474105,"endHours":14.832273772796187,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:56","end":"18:20","startHours":17.937155626084515,"endHours":18.337155626084513,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:08","end":"18:39","startHours":18.137155626084514,"endHours":18.653543415660817,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:53","end":"19:38","startHours":17.887155626084514,"endHours":19.637155626084514,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:32","end":"00:21","startHours":23.52739191950786,"endHours":24.35361238282994,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:45","end":"07:18","startHours":5.743848676253284,"endHours":7.293012044982188,"quality":"inauspicious"},{"name":"Chala","start":"07:18","end":"08:51","startHours":7.293012044982188,"endHours":8.842175413711091,"quality":"neutral"},{"name":"Labha","start":"08:51","end":"10:23","startHours":8.842175413711091,"endHours":10.391338782439995,"quality":"auspicious"},{"name":"Amṛta","start":"10:23","end":"11:56","startHours":10.391338782439995,"endHours":11.9405021511689,"quality":"auspicious"},{"name":"Kāla","start":"11:56","end":"13:29","startHours":11.9405021511689,"endHours":13.489665519897802,"quality":"inauspicious"},{"name":"Śubha","start":"13:29","end":"15:02","startHours":13.489665519897802,"endHours":15.038828888626707,"quality":"auspicious"},{"name":"Roga","start":"15:02","end":"16:35","startHours":15.038828888626707,"endHours":16.58799225735561,"quality":"inauspicious"},{"name":"Udveg","start":"16:35","end":"18:08","startHours":16.58799225735561,"endHours":18.137155626084514,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:08","end":"19:35","startHours":18.137155626084514,"endHours":19.58799225735561,"quality":"auspicious"},{"name":"Roga","start":"19:35","end":"21:02","startHours":19.58799225735561,"endHours":21.038828888626707,"quality":"inauspicious"},{"name":"Udveg","start":"21:02","end":"22:29","startHours":21.038828888626707,"endHours":22.4896655198978,"quality":"inauspicious"},{"name":"Chala","start":"22:29","end":"23:56","startHours":22.4896655198978,"endHours":23.9405021511689,"quality":"neutral"},{"name":"Labha","start":"23:56","end":"01:23","startHours":23.9405021511689,"endHours":25.391338782439995,"quality":"auspicious"},{"name":"Amṛta","start":"01:23","end":"02:51","startHours":25.391338782439995,"endHours":26.84217541371109,"quality":"auspicious"},{"name":"Kāla","start":"02:51","end":"04:18","startHours":26.84217541371109,"endHours":28.293012044982188,"quality":"inauspicious"},{"name":"Śubha","start":"04:18","end":"05:45","startHours":28.293012044982188,"endHours":29.743848676253286,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:45","end":"06:45","startHours":5.743848676253284,"endHours":6.743848676253284,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:45","end":"07:45","startHours":6.743848676253284,"endHours":7.743848676253284,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:45","end":"08:45","startHours":7.743848676253284,"endHours":8.743848676253284,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:45","end":"09:45","startHours":8.743848676253284,"endHours":9.743848676253284,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:45","end":"10:45","startHours":9.743848676253284,"endHours":10.743848676253284,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:45","end":"11:45","startHours":10.743848676253284,"endHours":11.743848676253284,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:45","end":"12:45","startHours":11.743848676253284,"endHours":12.743848676253284,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:45","end":"13:45","startHours":12.743848676253284,"endHours":13.743848676253284,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:45","end":"14:45","startHours":13.743848676253284,"endHours":14.743848676253284,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:45","end":"15:45","startHours":14.743848676253284,"endHours":15.743848676253284,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:45","end":"16:45","startHours":15.743848676253284,"endHours":16.743848676253286,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:45","end":"17:45","startHours":16.743848676253286,"endHours":17.743848676253286,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:45","end":"18:45","startHours":17.743848676253286,"endHours":18.743848676253286,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:45","end":"19:45","startHours":18.743848676253286,"endHours":19.743848676253286,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:45","end":"20:45","startHours":19.743848676253286,"endHours":20.743848676253286,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:45","end":"21:45","startHours":20.743848676253286,"endHours":21.743848676253286,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:45","end":"22:45","startHours":21.743848676253286,"endHours":22.743848676253286,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:45","end":"23:45","startHours":22.743848676253286,"endHours":23.743848676253286,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:45","end":"00:45","startHours":23.743848676253286,"endHours":24.743848676253286,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:45","end":"01:45","startHours":24.743848676253286,"endHours":25.743848676253286,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:45","end":"02:45","startHours":25.743848676253286,"endHours":26.743848676253286,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:45","end":"03:45","startHours":26.743848676253286,"endHours":27.743848676253286,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:45","end":"04:45","startHours":27.743848676253286,"endHours":28.743848676253286,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:45","end":"05:45","startHours":28.743848676253286,"endHours":29.743848676253286,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":3.9789098633586235,"eotMinutes":4.753870929866006,"ayanamsa":24.0723}},"calendars":{"vikram_samvat":2072,"vikram_samvatsara":"Kīlaka","saka_samvat":1937,"saka_samvatsara":"Manmatha","bengali_samvat":1422,"malayalam_era":1191,"nanakshahi_year":546,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Amāvasyā · Vikram 2072 Kīlaka · Śaka 1937 Manmatha"},"festivals":[{"id":"mahalaya-amavasya","name":"Mahālaya Amāvasyā (Sarvapitṛ Amāvasyā)","name_sanskrit":"महालय अमावस्या","tradition":"Pan-Hindu","associated_deity":"Pitṛ-deva","significance":"Final day of Pitṛ-Pakṣa; tarpaṇa for all ancestors.","vrata":true,"detection":{"tithi_number":30,"tithi_paksha":"Kṛṣṇa","lunar_month":"Bhādrapada"},"precedence":1},{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"precedence":5}],"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"ayodhya"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga September 13, 2015 CE · Ayodhyā · Vidhyamitra","description":"September 13, 2015 CE for Ayodhyā: Kṛṣṇa Amāvasyā, sūryodaya 05:45, sūryāsta 18:08.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2015-09-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2015-09-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/2015-09-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/2015-09-13","x-default":"https://vidhyamitra.com/city/ayodhya/2015-09-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T12:07:48.474Z","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":"2026-05-15T12:07:48.474Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T12:07:48.474Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}