{"id":"vidhyamitra:city-day:ayodhya:1680-12-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1680-12-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1680-12-28","date_display":"December 28, 1680 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":1680,"month":12,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2335029.770833,"kali_year":4782,"ahargana":1746564.2708,"sun":{"sidereal_longitude":258.4414,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":342.1949,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":83.7535,"elapsed_within_tithi_degrees":11.7535},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3,"moon_longitude":342.1949,"elapsed_within_degrees":8.8615},"yoga":{"number":19,"name":"Parigha","sum_longitude":240.6362},"karana":{"half_tithi_index":13,"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":1680,"month":12,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2335029.770833,"ahargana":1746564.2708,"kali_year":4782,"ayanamsa_lahiri":19.3967,"grahas":{"sun":{"sidereal_longitude":257.912949,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":338.43954899999994,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false,"latitude":-0.2803},"mars":{"sidereal_longitude":155.42674899999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":275.547149,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":52.368048999999985,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":290.077549,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":94.60434900000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":158.6199,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":338.6199,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","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":1680,"month":12,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2335029.770833,"kali_year":4782,"ahargana":1746564.2708,"sun":{"sidereal_longitude":258.4414,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":342.1949,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":83.7535,"elapsed_within_tithi_degrees":11.7535},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3,"moon_longitude":342.1949,"elapsed_within_degrees":8.8615},"yoga":{"number":19,"name":"Parigha","sum_longitude":240.6362},"karana":{"half_tithi_index":13,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.28,"elongation":83.754},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.28,"opposition_distance":96.246}},"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":"06:49","sunsetLocal":"17:17","solarNoonLocal":"12:03","dayLengthHours":10.468517282905502,"dayLengthDisplay":"10 Hours 28 Mins 07 Secs","nightLengthDisplay":"13 Hours 31 Mins 53 Secs","moonriseLocal":"11:24","moonsetLocal":"23:26","rahuKala":{"name":"Rāhu Kāla","start":"09:26","end":"10:45","startHours":9.434055753678416,"endHours":10.742620414041603,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:22","end":"14:40","startHours":13.35974973476798,"endHours":14.668314395131167,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:49","end":"08:08","startHours":6.816926432952041,"endHours":8.12549109331523,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:16","end":"09:37","startHours":9.259580465629991,"endHours":9.608531041726842,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:15","end":"07:32","startHours":7.253114653073103,"endHours":7.5322751139505835,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:42","end":"12:24","startHours":11.702234498307941,"endHours":12.400135650501642,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:25","end":"06:07","startHours":5.4211241285646405,"endHours":6.119025280758341,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:57","end":"06:49","startHours":5.9445499927099155,"endHours":6.816926432952041,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:48","end":"14:30","startHours":13.795937954889041,"endHours":14.49383910708274,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:05","end":"17:29","startHours":17.085443715857544,"endHours":17.485443715857542,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:17","end":"17:43","startHours":17.285443715857543,"endHours":17.721631935978607,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:02","end":"18:47","startHours":17.035443715857543,"endHours":18.785443715857543,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:42","end":"00:24","startHours":23.70223449830794,"endHours":24.400135650501642,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:49","end":"08:08","startHours":6.816926432952041,"endHours":8.12549109331523,"quality":"inauspicious"},{"name":"Śubha","start":"08:08","end":"09:26","startHours":8.12549109331523,"endHours":9.434055753678416,"quality":"auspicious"},{"name":"Roga","start":"09:26","end":"10:45","startHours":9.434055753678416,"endHours":10.742620414041603,"quality":"inauspicious"},{"name":"Udveg","start":"10:45","end":"12:03","startHours":10.742620414041603,"endHours":12.051185074404792,"quality":"inauspicious"},{"name":"Chala","start":"12:03","end":"13:22","startHours":12.051185074404792,"endHours":13.35974973476798,"quality":"neutral"},{"name":"Labha","start":"13:22","end":"14:40","startHours":13.35974973476798,"endHours":14.668314395131167,"quality":"auspicious"},{"name":"Amṛta","start":"14:40","end":"15:59","startHours":14.668314395131167,"endHours":15.976879055494354,"quality":"auspicious"},{"name":"Kāla","start":"15:59","end":"17:17","startHours":15.976879055494354,"endHours":17.285443715857543,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:17","end":"18:59","startHours":17.285443715857543,"endHours":18.976879055494354,"quality":"auspicious"},{"name":"Amṛta","start":"18:59","end":"20:40","startHours":18.976879055494354,"endHours":20.66831439513117,"quality":"auspicious"},{"name":"Kāla","start":"20:40","end":"22:22","startHours":20.66831439513117,"endHours":22.35974973476798,"quality":"inauspicious"},{"name":"Śubha","start":"22:22","end":"00:03","startHours":22.35974973476798,"endHours":24.051185074404792,"quality":"auspicious"},{"name":"Roga","start":"00:03","end":"01:45","startHours":24.051185074404792,"endHours":25.742620414041603,"quality":"inauspicious"},{"name":"Udveg","start":"01:45","end":"03:26","startHours":25.742620414041603,"endHours":27.434055753678415,"quality":"inauspicious"},{"name":"Chala","start":"03:26","end":"05:08","startHours":27.434055753678415,"endHours":29.12549109331523,"quality":"neutral"},{"name":"Labha","start":"05:08","end":"06:49","startHours":29.12549109331523,"endHours":30.81692643295204,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:49","end":"07:49","startHours":6.816926432952041,"endHours":7.816926432952041,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:49","end":"08:49","startHours":7.816926432952041,"endHours":8.816926432952041,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:49","end":"09:49","startHours":8.816926432952041,"endHours":9.816926432952041,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:49","end":"10:49","startHours":9.816926432952041,"endHours":10.816926432952041,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:49","end":"11:49","startHours":10.816926432952041,"endHours":11.816926432952041,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:49","end":"12:49","startHours":11.816926432952041,"endHours":12.816926432952041,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:49","end":"13:49","startHours":12.816926432952041,"endHours":13.816926432952041,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:49","end":"14:49","startHours":13.816926432952041,"endHours":14.816926432952041,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:49","end":"15:49","startHours":14.816926432952041,"endHours":15.816926432952041,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:49","end":"16:49","startHours":15.816926432952041,"endHours":16.81692643295204,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:49","end":"17:49","startHours":16.81692643295204,"endHours":17.81692643295204,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:49","end":"18:49","startHours":17.81692643295204,"endHours":18.81692643295204,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:49","end":"19:49","startHours":18.81692643295204,"endHours":19.81692643295204,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:49","end":"20:49","startHours":19.81692643295204,"endHours":20.81692643295204,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:49","end":"21:49","startHours":20.81692643295204,"endHours":21.81692643295204,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:49","end":"22:49","startHours":21.81692643295204,"endHours":22.81692643295204,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:49","end":"23:49","startHours":22.81692643295204,"endHours":23.81692643295204,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:49","end":"00:49","startHours":23.81692643295204,"endHours":24.81692643295204,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:49","end":"01:49","startHours":24.81692643295204,"endHours":25.81692643295204,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:49","end":"02:49","startHours":25.81692643295204,"endHours":26.81692643295204,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:49","end":"03:49","startHours":26.81692643295204,"endHours":27.81692643295204,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:49","end":"04:49","startHours":27.81692643295204,"endHours":28.81692643295204,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:49","end":"05:49","startHours":28.81692643295204,"endHours":29.81692643295204,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:49","end":"06:49","startHours":29.81692643295204,"endHours":30.81692643295204,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"East","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.234800314526094,"eotMinutes":-1.8871044642874448,"ayanamsa":19.3967}},"calendars":{"vikram_samvat":1737,"vikram_samvatsara":"Śrīmukha","saka_samvat":1602,"saka_samvatsara":"Raudra","bengali_samvat":1087,"malayalam_era":856,"nanakshahi_year":211,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","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 Śukla Saptamī · Vikram 1737 Śrīmukha · Śaka 1602 Raudra"},"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 28, 1680 CE · Ayodhyā · Vidhyamitra","description":"December 28, 1680 CE for Ayodhyā: Śukla Saptamī, sūryodaya 06:49, sūryāsta 17:17.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1680-12-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1680-12-28","sa":"https://sa.vidhyamitra.com/city/ayodhya/1680-12-28","hi":"https://hi.vidhyamitra.com/city/ayodhya/1680-12-28","x-default":"https://vidhyamitra.com/city/ayodhya/1680-12-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T23:03:45.675Z","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":"2026-06-03T23:03:45.675Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T23:03:45.675Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}