{"id":"vidhyamitra:city-day:ayodhya:1777-12-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1777-12-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1777-12-20","date_display":"December 20, 1777 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":1777,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2370449.770833,"kali_year":4879,"ahargana":1781984.2708,"sun":{"sidereal_longitude":248.0594,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":137.2436,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":249.1842,"elapsed_within_tithi_degrees":9.1842},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2,"moon_longitude":137.2436,"elapsed_within_degrees":3.9103},"yoga":{"number":2,"name":"Prīti","sum_longitude":25.3031},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1777,"month":12,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2370449.770833,"ahargana":1781984.2708,"kali_year":4879,"ayanamsa_lahiri":20.7514,"grahas":{"sun":{"sidereal_longitude":247.84454400000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"moon":{"sidereal_longitude":138.73884399999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false,"latitude":3.7005},"mars":{"sidereal_longitude":291.3063440000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":256.05504399999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":128.02124400000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":228.23814400000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":203.92734399999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":81.8978,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":261.8978,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":1777,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2370449.770833,"kali_year":4879,"ahargana":1781984.2708,"sun":{"sidereal_longitude":248.0594,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":137.2436,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":249.1842,"elapsed_within_tithi_degrees":9.1842},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2,"moon_longitude":137.2436,"elapsed_within_degrees":3.9103},"yoga":{"number":2,"name":"Prīti","sum_longitude":25.3031},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.7,"elongation":110.816},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.7,"opposition_distance":69.184}},"eclipse_window_40days":[{"offset_days":10,"type":"solar","occurs":true,"moon_latitude":0.142,"elongation":1.224}]},"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":"06:46","sunsetLocal":"17:13","solarNoonLocal":"11:59","dayLengthHours":10.452883316848338,"dayLengthDisplay":"10 Hours 27 Mins 10 Secs","nightLengthDisplay":"13 Hours 32 Mins 50 Secs","moonriseLocal":"22:24","moonsetLocal":"11:02","rahuKala":{"name":"Rāhu Kāla","start":"09:23","end":"10:41","startHours":9.375647212080104,"endHours":10.682257626686146,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:18","end":"14:36","startHours":13.29547845589823,"endHours":14.602088870504273,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:46","end":"08:04","startHours":6.76242638286802,"endHours":8.069036797474062,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:12","end":"09:33","startHours":9.201432490132632,"endHours":9.549861934027575,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:12","end":"07:29","startHours":7.1979631877367005,"endHours":7.476706742852656,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:38","end":"12:20","startHours":11.640438597397244,"endHours":12.337297485187134,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:22","end":"06:04","startHours":5.368708607288241,"endHours":6.06556749507813,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:53","end":"06:46","startHours":5.891352773130658,"endHours":6.76242638286802,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:44","end":"14:26","startHours":13.731015260766911,"endHours":14.4278741485568,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:01","end":"17:25","startHours":17.015309699716358,"endHours":17.415309699716357,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:13","end":"17:39","startHours":17.215309699716357,"endHours":17.650846504585036,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:58","end":"18:43","startHours":16.965309699716357,"endHours":18.715309699716357,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:38","end":"00:20","startHours":23.640438597397246,"endHours":24.337297485187133,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:46","end":"08:04","startHours":6.76242638286802,"endHours":8.069036797474062,"quality":"inauspicious"},{"name":"Śubha","start":"08:04","end":"09:23","startHours":8.069036797474062,"endHours":9.375647212080104,"quality":"auspicious"},{"name":"Roga","start":"09:23","end":"10:41","startHours":9.375647212080104,"endHours":10.682257626686146,"quality":"inauspicious"},{"name":"Udveg","start":"10:41","end":"11:59","startHours":10.682257626686146,"endHours":11.98886804129219,"quality":"inauspicious"},{"name":"Chala","start":"11:59","end":"13:18","startHours":11.98886804129219,"endHours":13.29547845589823,"quality":"neutral"},{"name":"Labha","start":"13:18","end":"14:36","startHours":13.29547845589823,"endHours":14.602088870504273,"quality":"auspicious"},{"name":"Amṛta","start":"14:36","end":"15:55","startHours":14.602088870504273,"endHours":15.908699285110314,"quality":"auspicious"},{"name":"Kāla","start":"15:55","end":"17:13","startHours":15.908699285110314,"endHours":17.215309699716357,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:13","end":"18:55","startHours":17.215309699716357,"endHours":18.908699285110316,"quality":"auspicious"},{"name":"Amṛta","start":"18:55","end":"20:36","startHours":18.908699285110316,"endHours":20.60208887050427,"quality":"auspicious"},{"name":"Kāla","start":"20:36","end":"22:18","startHours":20.60208887050427,"endHours":22.29547845589823,"quality":"inauspicious"},{"name":"Śubha","start":"22:18","end":"23:59","startHours":22.29547845589823,"endHours":23.98886804129219,"quality":"auspicious"},{"name":"Roga","start":"23:59","end":"01:41","startHours":23.98886804129219,"endHours":25.682257626686145,"quality":"inauspicious"},{"name":"Udveg","start":"01:41","end":"03:23","startHours":25.682257626686145,"endHours":27.375647212080104,"quality":"inauspicious"},{"name":"Chala","start":"03:23","end":"05:04","startHours":27.375647212080104,"endHours":29.069036797474062,"quality":"neutral"},{"name":"Labha","start":"05:04","end":"06:46","startHours":29.069036797474062,"endHours":30.76242638286802,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:46","end":"07:46","startHours":6.76242638286802,"endHours":7.76242638286802,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:46","end":"08:46","startHours":7.76242638286802,"endHours":8.76242638286802,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:46","end":"09:46","startHours":8.76242638286802,"endHours":9.76242638286802,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:46","end":"10:46","startHours":9.76242638286802,"endHours":10.76242638286802,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:46","end":"11:46","startHours":10.76242638286802,"endHours":11.76242638286802,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:46","end":"12:46","startHours":11.76242638286802,"endHours":12.76242638286802,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:46","end":"13:46","startHours":12.76242638286802,"endHours":13.76242638286802,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:46","end":"14:46","startHours":13.76242638286802,"endHours":14.76242638286802,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:46","end":"15:46","startHours":14.76242638286802,"endHours":15.76242638286802,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:46","end":"16:46","startHours":15.76242638286802,"endHours":16.76242638286802,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:46","end":"17:46","startHours":16.76242638286802,"endHours":17.76242638286802,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:46","end":"18:46","startHours":17.76242638286802,"endHours":18.76242638286802,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:46","end":"19:46","startHours":18.76242638286802,"endHours":19.76242638286802,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:46","end":"20:46","startHours":19.76242638286802,"endHours":20.76242638286802,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:46","end":"21:46","startHours":20.76242638286802,"endHours":21.76242638286802,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:46","end":"22:46","startHours":21.76242638286802,"endHours":22.76242638286802,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:46","end":"23:46","startHours":22.76242638286802,"endHours":23.76242638286802,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:46","end":"00:46","startHours":23.76242638286802,"endHours":24.76242638286802,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:46","end":"01:46","startHours":24.76242638286802,"endHours":25.76242638286802,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:46","end":"02:46","startHours":25.76242638286802,"endHours":26.76242638286802,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:46","end":"03:46","startHours":26.76242638286802,"endHours":27.76242638286802,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:46","end":"04:46","startHours":27.76242638286802,"endHours":28.76242638286802,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:46","end":"05:46","startHours":28.76242638286802,"endHours":29.76242638286802,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:46","end":"06:46","startHours":29.76242638286802,"endHours":30.76242638286802,"planetary_lord":"Mercury"}],"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":"East (Pūrva)","chandraVasa":"West","rahuVasa":"East","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.42904295898297,"eotMinutes":1.851917522468745,"ayanamsa":20.7514}},"calendars":{"vikram_samvat":1834,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":1699,"saka_samvatsara":"Hemalambī","bengali_samvat":1184,"malayalam_era":953,"nanakshahi_year":308,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Ṣaṣṭhī · Vikram 1834 Sādhāraṇa · Śaka 1699 Hemalambī"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 December 20, 1777 CE · Ayodhyā · Vidhyamitra","description":"December 20, 1777 CE for Ayodhyā: Kṛṣṇa Ṣaṣṭhī, sūryodaya 06:46, sūryāsta 17:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1777-12-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1777-12-20","sa":"https://sa.vidhyamitra.com/city/ayodhya/1777-12-20","hi":"https://hi.vidhyamitra.com/city/ayodhya/1777-12-20","x-default":"https://vidhyamitra.com/city/ayodhya/1777-12-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:25:32.408Z","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":"2026-05-31T18:25:32.408Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:25:32.408Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}