{"id":"vidhyamitra:city-day:ayodhya:1821-07-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1821-07-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1821-07-15","date_display":"July 15, 1821 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":1821,"month":7,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2386361.770833,"kali_year":4923,"ahargana":1797896.2708,"sun":{"sidereal_longitude":90.773,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":267.9223,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":177.1493,"elapsed_within_tithi_degrees":9.1493},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1,"moon_longitude":267.9223,"elapsed_within_degrees":1.2556},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":358.6952},"karana":{"half_tithi_index":29,"name":"Bava"},"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":1821,"month":7,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2386361.770833,"ahargana":1797896.2708,"kali_year":4923,"ayanamsa_lahiri":21.36,"grahas":{"sun":{"sidereal_longitude":90.78998899999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"moon":{"sidereal_longitude":268.885889,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false,"latitude":-3.4898},"mars":{"sidereal_longitude":52.55638899999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":116.58018900000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":8.890889000000016,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":107.73868900000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":6.424689000000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":318.8035,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":138.8035,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":1821,"month":7,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2386361.770833,"kali_year":4923,"ahargana":1797896.2708,"sun":{"sidereal_longitude":90.773,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":267.9223,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":177.1493,"elapsed_within_tithi_degrees":9.1493},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1,"moon_longitude":267.9223,"elapsed_within_degrees":1.2556},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":358.6952},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.49,"elongation":177.149},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.49,"opposition_distance":2.851}},"eclipse_window_40days":[]},"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":"05:16","sunsetLocal":"18:57","solarNoonLocal":"12:07","dayLengthHours":13.676287122296607,"dayLengthDisplay":"13 Hours 40 Mins 35 Secs","nightLengthDisplay":"10 Hours 19 Mins 25 Secs","moonriseLocal":"18:43","moonsetLocal":"05:15","rahuKala":{"name":"Rāhu Kāla","start":"17:14","end":"18:57","startHours":17.241401189300813,"endHours":18.950937079587888,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:07","end":"13:49","startHours":12.112793518439585,"endHours":13.82232940872666,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:32","end":"17:14","startHours":15.531865299013734,"endHours":17.241401189300813,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:28","end":"08:55","startHours":8.465783619160488,"endHours":8.921659856570376,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:51","end":"06:13","startHours":5.844495254053639,"endHours":6.209196243981548,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:39","end":"12:34","startHours":11.656917281029697,"endHours":12.568669755849472,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:27","end":"04:22","startHours":3.4511450076517325,"endHours":4.3628974824715065,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:08","end":"05:16","startHours":4.134959363766563,"endHours":5.27464995729128,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:24","end":"15:18","startHours":14.392174705489019,"endHours":15.303927180308794,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:45","end":"19:09","startHours":18.75093707958789,"endHours":19.150937079587887,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:57","end":"19:31","startHours":18.950937079587888,"endHours":19.520782376350247,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:42","end":"20:27","startHours":18.700937079587888,"endHours":20.450937079587888,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:39","end":"00:34","startHours":23.6569172810297,"endHours":24.56866975584947,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:16","end":"06:59","startHours":5.27464995729128,"endHours":6.984185847578356,"quality":"inauspicious"},{"name":"Chala","start":"06:59","end":"08:42","startHours":6.984185847578356,"endHours":8.693721737865431,"quality":"neutral"},{"name":"Labha","start":"08:42","end":"10:24","startHours":8.693721737865431,"endHours":10.403257628152508,"quality":"auspicious"},{"name":"Amṛta","start":"10:24","end":"12:07","startHours":10.403257628152508,"endHours":12.112793518439585,"quality":"auspicious"},{"name":"Kāla","start":"12:07","end":"13:49","startHours":12.112793518439585,"endHours":13.82232940872666,"quality":"inauspicious"},{"name":"Śubha","start":"13:49","end":"15:32","startHours":13.82232940872666,"endHours":15.531865299013734,"quality":"auspicious"},{"name":"Roga","start":"15:32","end":"17:14","startHours":15.531865299013734,"endHours":17.241401189300813,"quality":"inauspicious"},{"name":"Udveg","start":"17:14","end":"18:57","startHours":17.241401189300813,"endHours":18.950937079587888,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:57","end":"20:14","startHours":18.950937079587888,"endHours":20.241401189300813,"quality":"auspicious"},{"name":"Roga","start":"20:14","end":"21:32","startHours":20.241401189300813,"endHours":21.531865299013738,"quality":"inauspicious"},{"name":"Udveg","start":"21:32","end":"22:49","startHours":21.531865299013738,"endHours":22.82232940872666,"quality":"inauspicious"},{"name":"Chala","start":"22:49","end":"00:07","startHours":22.82232940872666,"endHours":24.112793518439585,"quality":"neutral"},{"name":"Labha","start":"00:07","end":"01:24","startHours":24.112793518439585,"endHours":25.40325762815251,"quality":"auspicious"},{"name":"Amṛta","start":"01:24","end":"02:42","startHours":25.40325762815251,"endHours":26.69372173786543,"quality":"auspicious"},{"name":"Kāla","start":"02:42","end":"03:59","startHours":26.69372173786543,"endHours":27.984185847578356,"quality":"inauspicious"},{"name":"Śubha","start":"03:59","end":"05:16","startHours":27.984185847578356,"endHours":29.27464995729128,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:16","end":"06:16","startHours":5.27464995729128,"endHours":6.27464995729128,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:16","end":"07:16","startHours":6.27464995729128,"endHours":7.27464995729128,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:16","end":"08:16","startHours":7.27464995729128,"endHours":8.274649957291281,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:16","end":"09:16","startHours":8.274649957291281,"endHours":9.274649957291281,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:16","end":"10:16","startHours":9.274649957291281,"endHours":10.274649957291281,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:16","end":"11:16","startHours":10.274649957291281,"endHours":11.274649957291281,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:16","end":"12:16","startHours":11.274649957291281,"endHours":12.274649957291281,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:16","end":"13:16","startHours":12.274649957291281,"endHours":13.274649957291281,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:16","end":"14:16","startHours":13.274649957291281,"endHours":14.274649957291281,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:16","end":"15:16","startHours":14.274649957291281,"endHours":15.274649957291281,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:16","end":"16:16","startHours":15.274649957291281,"endHours":16.27464995729128,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:16","end":"17:16","startHours":16.27464995729128,"endHours":17.27464995729128,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:16","end":"18:16","startHours":17.27464995729128,"endHours":18.27464995729128,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:16","end":"19:16","startHours":18.27464995729128,"endHours":19.27464995729128,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:16","end":"20:16","startHours":19.27464995729128,"endHours":20.27464995729128,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:16","end":"21:16","startHours":20.27464995729128,"endHours":21.27464995729128,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:16","end":"22:16","startHours":21.27464995729128,"endHours":22.27464995729128,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:16","end":"23:16","startHours":22.27464995729128,"endHours":23.27464995729128,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:16","end":"00:16","startHours":23.27464995729128,"endHours":24.27464995729128,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:16","end":"01:16","startHours":24.27464995729128,"endHours":25.27464995729128,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:16","end":"02:16","startHours":25.27464995729128,"endHours":26.27464995729128,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:16","end":"03:16","startHours":26.27464995729128,"endHours":27.27464995729128,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:16","end":"04:16","startHours":27.27464995729128,"endHours":28.27464995729128,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:16","end":"05:16","startHours":28.27464995729128,"endHours":29.27464995729128,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","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":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":21.615731152542487,"eotMinutes":-5.583611106375076,"ayanamsa":21.36}},"calendars":{"vikram_samvat":1878,"vikram_samvatsara":"Jaya","saka_samvat":1743,"saka_samvatsara":"Vṛṣa","bengali_samvat":1228,"malayalam_era":997,"nanakshahi_year":352,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āṣāḍha","lunar_month_amanta":"Āṣāḍha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Karkaṭa (Āḍi)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Śukla Pūrṇimā · Vikram 1878 Jaya · Śaka 1743 Vṛṣa"},"festivals":[{"id":"guru-purnima","name":"Guru Pūrṇimā / Vyāsa Pūrṇimā","name_sanskrit":"गुरु पूर्णिमा / व्यास पूर्णिमा","tradition":"Pan-Hindu","associated_deity":"Vyāsa-jī","significance":"Honor Vyāsa-jī and all gurus.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Āṣāḍha"},"precedence":1},{"id":"vyasa-purnima","name":"Vyāsa Pūrṇimā (= Guru Pūrṇimā)","name_sanskrit":"व्यास पूर्णिमा","tradition":"Pan-Hindu","associated_deity":"Veda-Vyāsa","significance":"Birth of Veda-Vyāsa; Mahābhārata-Purāṇa-vibhāga-kartā. = Guru Pūrṇimā.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Āṣāḍha"},"precedence":1,"related_chart":"vyasa"}],"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":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","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 July 15, 1821 CE · Ayodhyā · Vidhyamitra","description":"July 15, 1821 CE for Ayodhyā: Śukla Pūrṇimā, sūryodaya 05:16, sūryāsta 18:57.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1821-07-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1821-07-15","sa":"https://sa.vidhyamitra.com/city/ayodhya/1821-07-15","hi":"https://hi.vidhyamitra.com/city/ayodhya/1821-07-15","x-default":"https://vidhyamitra.com/city/ayodhya/1821-07-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T20:56:07.276Z","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":"2026-05-31T20:56:07.276Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T20:56:07.276Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}