{"id":"vidhyamitra:city-day:ayodhya:1787-01-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1787-01-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1787-01-21","date_display":"January 21, 1787 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":1787,"month":1,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2373768.770833,"kali_year":4888,"ahargana":1785303.2708,"sun":{"sidereal_longitude":280.5915,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":299.3571,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":18.7657,"elapsed_within_tithi_degrees":6.7657},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":299.3571,"elapsed_within_degrees":6.0238},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":219.9486},"karana":{"half_tithi_index":3,"name":"Kaulava"},"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":1787,"month":1,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2373768.770833,"ahargana":1785303.2708,"kali_year":4888,"ayanamsa_lahiri":20.8784,"grahas":{"sun":{"sidereal_longitude":280.133234,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"moon":{"sidereal_longitude":298.72903399999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false,"latitude":2.4699},"mars":{"sidereal_longitude":261.842534,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":259.97673399999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":23.599833999999987,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":258.863934,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":299.124334,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":266.0412,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":86.0412,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","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":1787,"month":1,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2373768.770833,"kali_year":4888,"ahargana":1785303.2708,"sun":{"sidereal_longitude":280.5915,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":299.3571,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":18.7657,"elapsed_within_tithi_degrees":6.7657},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":299.3571,"elapsed_within_degrees":6.0238},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":219.9486},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.47,"elongation":18.766},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.47,"opposition_distance":161.234}},"eclipse_window_40days":[{"offset_days":-17,"type":"lunar","occurs":true,"moon_latitude":0.145,"opposition_distance":1.946}]},"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":"06:51","sunsetLocal":"17:34","solarNoonLocal":"12:12","dayLengthHours":10.727281182046324,"dayLengthDisplay":"10 Hours 43 Mins 38 Secs","nightLengthDisplay":"13 Hours 16 Mins 22 Secs","moonriseLocal":"07:55","moonsetLocal":"18:59","rahuKala":{"name":"Rāhu Kāla","start":"16:14","end":"17:34","startHours":16.230059297419572,"endHours":17.570969445175365,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:12","end":"13:33","startHours":12.207328854152202,"endHours":13.548239001907994,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:53","end":"16:14","startHours":14.889149149663783,"endHours":16.230059297419572,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:21","end":"09:42","startHours":9.346720538939849,"endHours":9.704296578341394,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:17","end":"07:35","startHours":7.2906583123809705,"endHours":7.5767191439022055,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:34","startHours":11.849752814750659,"endHours":12.564904893553745,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:25","end":"06:08","startHours":5.413384105522864,"endHours":6.128536184325952,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:57","end":"06:51","startHours":5.949748164625181,"endHours":6.8436882631290405,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:00","end":"14:43","startHours":13.995209051159923,"endHours":14.710361129963012,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:22","end":"17:46","startHours":17.370969445175366,"endHours":17.770969445175364,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:34","end":"18:01","startHours":17.570969445175365,"endHours":18.017939494427296,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:19","end":"19:04","startHours":17.320969445175365,"endHours":19.070969445175365,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:34","startHours":23.84975281475066,"endHours":24.564904893553745,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:51","end":"08:11","startHours":6.8436882631290405,"endHours":8.184598410884831,"quality":"inauspicious"},{"name":"Chala","start":"08:11","end":"09:32","startHours":8.184598410884831,"endHours":9.525508558640622,"quality":"neutral"},{"name":"Labha","start":"09:32","end":"10:52","startHours":9.525508558640622,"endHours":10.866418706396413,"quality":"auspicious"},{"name":"Amṛta","start":"10:52","end":"12:12","startHours":10.866418706396413,"endHours":12.207328854152202,"quality":"auspicious"},{"name":"Kāla","start":"12:12","end":"13:33","startHours":12.207328854152202,"endHours":13.548239001907994,"quality":"inauspicious"},{"name":"Śubha","start":"13:33","end":"14:53","startHours":13.548239001907994,"endHours":14.889149149663783,"quality":"auspicious"},{"name":"Roga","start":"14:53","end":"16:14","startHours":14.889149149663783,"endHours":16.230059297419572,"quality":"inauspicious"},{"name":"Udveg","start":"16:14","end":"17:34","startHours":16.230059297419572,"endHours":17.570969445175365,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:34","end":"19:14","startHours":17.570969445175365,"endHours":19.230059297419576,"quality":"auspicious"},{"name":"Roga","start":"19:14","end":"20:53","startHours":19.230059297419576,"endHours":20.889149149663783,"quality":"inauspicious"},{"name":"Udveg","start":"20:53","end":"22:33","startHours":20.889149149663783,"endHours":22.548239001907994,"quality":"inauspicious"},{"name":"Chala","start":"22:33","end":"00:12","startHours":22.548239001907994,"endHours":24.207328854152202,"quality":"neutral"},{"name":"Labha","start":"00:12","end":"01:52","startHours":24.207328854152202,"endHours":25.866418706396413,"quality":"auspicious"},{"name":"Amṛta","start":"01:52","end":"03:32","startHours":25.866418706396413,"endHours":27.525508558640624,"quality":"auspicious"},{"name":"Kāla","start":"03:32","end":"05:11","startHours":27.525508558640624,"endHours":29.18459841088483,"quality":"inauspicious"},{"name":"Śubha","start":"05:11","end":"06:51","startHours":29.18459841088483,"endHours":30.84368826312904,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:51","end":"07:51","startHours":6.8436882631290405,"endHours":7.8436882631290405,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:51","end":"08:51","startHours":7.8436882631290405,"endHours":8.84368826312904,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:51","end":"09:51","startHours":8.84368826312904,"endHours":9.84368826312904,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:51","end":"10:51","startHours":9.84368826312904,"endHours":10.84368826312904,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:51","end":"11:51","startHours":10.84368826312904,"endHours":11.84368826312904,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:51","end":"12:51","startHours":11.84368826312904,"endHours":12.84368826312904,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:51","end":"13:51","startHours":12.84368826312904,"endHours":13.84368826312904,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:51","end":"14:51","startHours":13.84368826312904,"endHours":14.84368826312904,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:51","end":"15:51","startHours":14.84368826312904,"endHours":15.84368826312904,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:51","end":"16:51","startHours":15.84368826312904,"endHours":16.84368826312904,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:51","end":"17:51","startHours":16.84368826312904,"endHours":17.84368826312904,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:51","end":"18:51","startHours":17.84368826312904,"endHours":18.84368826312904,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:51","end":"19:51","startHours":18.84368826312904,"endHours":19.84368826312904,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:51","end":"20:51","startHours":19.84368826312904,"endHours":20.84368826312904,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:51","end":"21:51","startHours":20.84368826312904,"endHours":21.84368826312904,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:51","end":"22:51","startHours":21.84368826312904,"endHours":22.84368826312904,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:51","end":"23:51","startHours":22.84368826312904,"endHours":23.84368826312904,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:51","end":"00:51","startHours":23.84368826312904,"endHours":24.84368826312904,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:51","end":"01:51","startHours":24.84368826312904,"endHours":25.84368826312904,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:51","end":"02:51","startHours":25.84368826312904,"endHours":26.84368826312904,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:51","end":"03:51","startHours":26.84368826312904,"endHours":27.84368826312904,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:51","end":"04:51","startHours":27.84368826312904,"endHours":28.84368826312904,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:51","end":"05:51","startHours":28.84368826312904,"endHours":29.84368826312904,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:51","end":"06:51","startHours":29.84368826312904,"endHours":30.84368826312904,"planetary_lord":"Jupiter"}],"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":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-19.930598567433012,"eotMinutes":-11.255731249132124,"ayanamsa":20.8784}},"calendars":{"vikram_samvat":1844,"vikram_samvatsara":"Raudra","saka_samvat":1709,"saka_samvatsara":"Plavaṅga","bengali_samvat":1194,"malayalam_era":963,"nanakshahi_year":318,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Dvitīyā · Vikram 1844 Raudra · Śaka 1709 Plavaṅga"},"festivals":[],"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":"ayodhya"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 21, 1787 CE · Ayodhyā · Vidhyamitra","description":"January 21, 1787 CE for Ayodhyā: Śukla Dvitīyā, sūryodaya 06:51, sūryāsta 17:34.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1787-01-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1787-01-21","sa":"https://sa.vidhyamitra.com/city/ayodhya/1787-01-21","hi":"https://hi.vidhyamitra.com/city/ayodhya/1787-01-21","x-default":"https://vidhyamitra.com/city/ayodhya/1787-01-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T01:40:18.120Z","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":"2026-05-31T01:40:18.120Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T01:40:18.120Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}