{"id":"vidhyamitra:city-day:ayodhya:2163-04-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2163-04-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2163-04-17","date_display":"April 17, 2163 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":2163,"month":4,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2511185.770833,"kali_year":5264,"ahargana":1922720.2708,"sun":{"sidereal_longitude":0.5074,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":153.4463,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":152.9389,"elapsed_within_tithi_degrees":8.9389},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":153.4463,"elapsed_within_degrees":6.7796},"yoga":{"number":12,"name":"Dhruva","sum_longitude":153.9537},"karana":{"half_tithi_index":25,"name":"Taitila"},"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":2163,"month":4,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2511185.770833,"ahargana":1922720.2708,"kali_year":5264,"ayanamsa_lahiri":26.134,"grahas":{"sun":{"sidereal_longitude":0.7564939999999751,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":153.78839400000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false,"latitude":-2.3549},"mars":{"sidereal_longitude":293.571694,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":333.22769399999993,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":289.83049400000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"venus":{"sidereal_longitude":337.355394,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":227.30599400000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":185.0273,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":5.0273,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":2163,"month":4,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2511185.770833,"kali_year":5264,"ahargana":1922720.2708,"sun":{"sidereal_longitude":0.5074,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":153.4463,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":152.9389,"elapsed_within_tithi_degrees":8.9389},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":153.4463,"elapsed_within_degrees":6.7796},"yoga":{"number":12,"name":"Dhruva","sum_longitude":153.9537},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.355,"elongation":152.939},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.355,"opposition_distance":27.061}},"eclipse_window_40days":[{"offset_days":2,"type":"lunar","occurs":true,"moon_latitude":-0.292,"opposition_distance":1.266},{"offset_days":16,"type":"solar","occurs":true,"moon_latitude":-0.773,"elongation":1.964}]},"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":"05:36","sunsetLocal":"18:26","solarNoonLocal":"12:01","dayLengthHours":12.833810920740383,"dayLengthDisplay":"12 Hours 50 Mins 02 Secs","nightLengthDisplay":"11 Hours 09 Mins 58 Secs","moonriseLocal":"16:10","moonsetLocal":"04:16","rahuKala":{"name":"Rāhu Kāla","start":"16:50","end":"18:26","startHours":16.828011612282147,"endHours":18.432237977374694,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:01","end":"13:37","startHours":12.015332517004502,"endHours":13.61955888209705,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:13","end":"16:50","startHours":15.2237852471896,"endHours":16.828011612282147,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:36","end":"09:01","startHours":8.592982938140402,"endHours":9.020776635498414,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:08","end":"06:29","startHours":6.133169178331827,"endHours":6.475404136218238,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:35","end":"12:27","startHours":11.58753881964649,"endHours":12.443126214362515,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:53","end":"04:45","startHours":3.8872522672022605,"endHours":4.7428396619182855,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:32","end":"05:36","startHours":4.528942813239279,"endHours":5.5984270566343115,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"15:01","startHours":14.154301003794565,"endHours":15.00988839851059,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:14","end":"18:38","startHours":18.232237977374695,"endHours":18.632237977374693,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:26","end":"18:58","startHours":18.432237977374694,"endHours":18.96698009907221,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:11","end":"19:56","startHours":18.182237977374694,"endHours":19.932237977374694,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:35","end":"00:27","startHours":23.58753881964649,"endHours":24.443126214362515,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:36","end":"07:12","startHours":5.5984270566343115,"endHours":7.202653421726859,"quality":"inauspicious"},{"name":"Chala","start":"07:12","end":"08:48","startHours":7.202653421726859,"endHours":8.806879786819408,"quality":"neutral"},{"name":"Labha","start":"08:48","end":"10:25","startHours":8.806879786819408,"endHours":10.411106151911955,"quality":"auspicious"},{"name":"Amṛta","start":"10:25","end":"12:01","startHours":10.411106151911955,"endHours":12.015332517004502,"quality":"auspicious"},{"name":"Kāla","start":"12:01","end":"13:37","startHours":12.015332517004502,"endHours":13.61955888209705,"quality":"inauspicious"},{"name":"Śubha","start":"13:37","end":"15:13","startHours":13.61955888209705,"endHours":15.2237852471896,"quality":"auspicious"},{"name":"Roga","start":"15:13","end":"16:50","startHours":15.2237852471896,"endHours":16.828011612282147,"quality":"inauspicious"},{"name":"Udveg","start":"16:50","end":"18:26","startHours":16.828011612282147,"endHours":18.432237977374694,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:26","end":"19:50","startHours":18.432237977374694,"endHours":19.828011612282147,"quality":"auspicious"},{"name":"Roga","start":"19:50","end":"21:13","startHours":19.828011612282147,"endHours":21.223785247189596,"quality":"inauspicious"},{"name":"Udveg","start":"21:13","end":"22:37","startHours":21.223785247189596,"endHours":22.61955888209705,"quality":"inauspicious"},{"name":"Chala","start":"22:37","end":"00:01","startHours":22.61955888209705,"endHours":24.015332517004502,"quality":"neutral"},{"name":"Labha","start":"00:01","end":"01:25","startHours":24.015332517004502,"endHours":25.411106151911955,"quality":"auspicious"},{"name":"Amṛta","start":"01:25","end":"02:48","startHours":25.411106151911955,"endHours":26.806879786819408,"quality":"auspicious"},{"name":"Kāla","start":"02:48","end":"04:12","startHours":26.806879786819408,"endHours":28.202653421726858,"quality":"inauspicious"},{"name":"Śubha","start":"04:12","end":"05:36","startHours":28.202653421726858,"endHours":29.59842705663431,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:36","end":"06:36","startHours":5.5984270566343115,"endHours":6.5984270566343115,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:36","end":"07:36","startHours":6.5984270566343115,"endHours":7.5984270566343115,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:36","end":"08:36","startHours":7.5984270566343115,"endHours":8.59842705663431,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:36","end":"09:36","startHours":8.59842705663431,"endHours":9.59842705663431,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:36","end":"10:36","startHours":9.59842705663431,"endHours":10.59842705663431,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:36","end":"11:36","startHours":10.59842705663431,"endHours":11.59842705663431,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:36","end":"12:36","startHours":11.59842705663431,"endHours":12.59842705663431,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:36","end":"13:36","startHours":12.59842705663431,"endHours":13.59842705663431,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:36","end":"14:36","startHours":13.59842705663431,"endHours":14.59842705663431,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:36","end":"15:36","startHours":14.59842705663431,"endHours":15.59842705663431,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:36","end":"16:36","startHours":15.59842705663431,"endHours":16.59842705663431,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:36","end":"17:36","startHours":16.59842705663431,"endHours":17.59842705663431,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:36","end":"18:36","startHours":17.59842705663431,"endHours":18.59842705663431,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:36","end":"19:36","startHours":18.59842705663431,"endHours":19.59842705663431,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:36","end":"20:36","startHours":19.59842705663431,"endHours":20.59842705663431,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:36","end":"21:36","startHours":20.59842705663431,"endHours":21.59842705663431,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:36","end":"22:36","startHours":21.59842705663431,"endHours":22.59842705663431,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:36","end":"23:36","startHours":22.59842705663431,"endHours":23.59842705663431,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:36","end":"00:36","startHours":23.59842705663431,"endHours":24.59842705663431,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:36","end":"01:36","startHours":24.59842705663431,"endHours":25.59842705663431,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:36","end":"02:36","startHours":25.59842705663431,"endHours":26.59842705663431,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:36","end":"03:36","startHours":26.59842705663431,"endHours":27.59842705663431,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:36","end":"04:36","startHours":27.59842705663431,"endHours":28.59842705663431,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:36","end":"05:36","startHours":28.59842705663431,"endHours":29.59842705663431,"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":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":10.36330142021758,"eotMinutes":0.2640489797298191,"ayanamsa":26.134}},"calendars":{"vikram_samvat":2220,"vikram_samvatsara":"Dhātṛ","saka_samvat":2085,"saka_samvatsara":"Rudhirodgāri","bengali_samvat":1570,"malayalam_era":1339,"nanakshahi_year":694,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Trayodaśī · Vikram 2220 Dhātṛ · Śaka 2085 Rudhirodgāri"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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 April 17, 2163 CE · Ayodhyā · Vidhyamitra","description":"April 17, 2163 CE for Ayodhyā: Śukla Trayodaśī, sūryodaya 05:36, sūryāsta 18:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2163-04-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2163-04-17","sa":"https://sa.vidhyamitra.com/city/ayodhya/2163-04-17","hi":"https://hi.vidhyamitra.com/city/ayodhya/2163-04-17","x-default":"https://vidhyamitra.com/city/ayodhya/2163-04-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T19:19:54.197Z","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":"2026-05-31T19:19:54.197Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T19:19:54.197Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}