{"id":"vidhyamitra:city-day:ayodhya:1664-05-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1664-05-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1664-05-10","date_display":"May 10, 1664 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":1664,"month":5,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2328953.770833,"kali_year":4766,"ahargana":1740488.2708,"sun":{"sidereal_longitude":31.549,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":212.0268,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":180.4778,"elapsed_within_tithi_degrees":0.4778},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":212.0268,"elapsed_within_degrees":12.0268},"yoga":{"number":19,"name":"Parigha","sum_longitude":243.5758},"karana":{"half_tithi_index":30,"name":"Bālava"},"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":1664,"month":5,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2328953.770833,"ahargana":1740488.2708,"kali_year":4766,"ayanamsa_lahiri":19.1643,"grahas":{"sun":{"sidereal_longitude":30.78599700000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":209.82949699999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false,"latitude":4.4985},"mars":{"sidereal_longitude":130.214897,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":29.758196999999996,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":273.1022969999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":3.120796999999982,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":252.69469700000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":120.5556,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":300.5556,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":1664,"month":5,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2328953.770833,"kali_year":4766,"ahargana":1740488.2708,"sun":{"sidereal_longitude":31.549,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":212.0268,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":180.4778,"elapsed_within_tithi_degrees":0.4778},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":212.0268,"elapsed_within_degrees":12.0268},"yoga":{"number":19,"name":"Parigha","sum_longitude":243.5758},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.499,"elongation":179.522},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.499,"opposition_distance":0.478}},"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":"18:39","solarNoonLocal":"11:58","dayLengthHours":13.371379859291295,"dayLengthDisplay":"13 Hours 22 Mins 17 Secs","nightLengthDisplay":"10 Hours 37 Mins 43 Secs","moonriseLocal":"18:27","moonsetLocal":"05:20","rahuKala":{"name":"Rāhu Kāla","start":"08:37","end":"10:17","startHours":8.615611271442951,"endHours":10.287033753854363,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:38","end":"15:18","startHours":13.629878718677187,"endHours":15.301301201088599,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:16","end":"06:57","startHours":5.272766306620127,"endHours":6.944188789031539,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:24","end":"08:50","startHours":8.392754940454763,"endHours":8.83846760243114,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:50","end":"06:11","startHours":5.829907134090598,"endHours":6.186477263671699,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:31","end":"12:24","startHours":11.512743574289399,"endHours":12.404168898242151,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:29","end":"04:23","startHours":3.4899156587146214,"endHours":4.381340982667375,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:10","end":"05:16","startHours":4.158484651679187,"endHours":5.272766306620127,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:05","startHours":14.187019546147656,"endHours":15.078444870100409,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:27","end":"18:51","startHours":18.444146165911423,"endHours":18.84414616591142,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:39","end":"19:12","startHours":18.644146165911422,"endHours":19.201286993381892,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:24","end":"20:09","startHours":18.394146165911422,"endHours":20.144146165911422,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:31","end":"00:24","startHours":23.5127435742894,"endHours":24.40416889824215,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:16","end":"06:57","startHours":5.272766306620127,"endHours":6.944188789031539,"quality":"inauspicious"},{"name":"Śubha","start":"06:57","end":"08:37","startHours":6.944188789031539,"endHours":8.615611271442951,"quality":"auspicious"},{"name":"Roga","start":"08:37","end":"10:17","startHours":8.615611271442951,"endHours":10.287033753854363,"quality":"inauspicious"},{"name":"Udveg","start":"10:17","end":"11:58","startHours":10.287033753854363,"endHours":11.958456236265775,"quality":"inauspicious"},{"name":"Chala","start":"11:58","end":"13:38","startHours":11.958456236265775,"endHours":13.629878718677187,"quality":"neutral"},{"name":"Labha","start":"13:38","end":"15:18","startHours":13.629878718677187,"endHours":15.301301201088599,"quality":"auspicious"},{"name":"Amṛta","start":"15:18","end":"16:58","startHours":15.301301201088599,"endHours":16.97272368350001,"quality":"auspicious"},{"name":"Kāla","start":"16:58","end":"18:39","startHours":16.97272368350001,"endHours":18.644146165911422,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:39","end":"19:58","startHours":18.644146165911422,"endHours":19.97272368350001,"quality":"auspicious"},{"name":"Amṛta","start":"19:58","end":"21:18","startHours":19.97272368350001,"endHours":21.3013012010886,"quality":"auspicious"},{"name":"Kāla","start":"21:18","end":"22:38","startHours":21.3013012010886,"endHours":22.629878718677187,"quality":"inauspicious"},{"name":"Śubha","start":"22:38","end":"23:58","startHours":22.629878718677187,"endHours":23.958456236265775,"quality":"auspicious"},{"name":"Roga","start":"23:58","end":"01:17","startHours":23.958456236265775,"endHours":25.287033753854363,"quality":"inauspicious"},{"name":"Udveg","start":"01:17","end":"02:37","startHours":25.287033753854363,"endHours":26.61561127144295,"quality":"inauspicious"},{"name":"Chala","start":"02:37","end":"03:57","startHours":26.61561127144295,"endHours":27.94418878903154,"quality":"neutral"},{"name":"Labha","start":"03:57","end":"05:16","startHours":27.94418878903154,"endHours":29.272766306620127,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:16","end":"06:16","startHours":5.272766306620127,"endHours":6.272766306620127,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:16","end":"07:16","startHours":6.272766306620127,"endHours":7.272766306620127,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:16","end":"08:16","startHours":7.272766306620127,"endHours":8.272766306620127,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:16","end":"09:16","startHours":8.272766306620127,"endHours":9.272766306620127,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:16","end":"10:16","startHours":9.272766306620127,"endHours":10.272766306620127,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:16","end":"11:16","startHours":10.272766306620127,"endHours":11.272766306620127,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:16","end":"12:16","startHours":11.272766306620127,"endHours":12.272766306620127,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:16","end":"13:16","startHours":12.272766306620127,"endHours":13.272766306620127,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:16","end":"14:16","startHours":13.272766306620127,"endHours":14.272766306620127,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:16","end":"15:16","startHours":14.272766306620127,"endHours":15.272766306620127,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:16","end":"16:16","startHours":15.272766306620127,"endHours":16.272766306620127,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:16","end":"17:16","startHours":16.272766306620127,"endHours":17.272766306620127,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:16","end":"18:16","startHours":17.272766306620127,"endHours":18.272766306620127,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:16","end":"19:16","startHours":18.272766306620127,"endHours":19.272766306620127,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:16","end":"20:16","startHours":19.272766306620127,"endHours":20.272766306620127,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:16","end":"21:16","startHours":20.272766306620127,"endHours":21.272766306620127,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:16","end":"22:16","startHours":21.272766306620127,"endHours":22.272766306620127,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:16","end":"23:16","startHours":22.272766306620127,"endHours":23.272766306620127,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:16","end":"00:16","startHours":23.272766306620127,"endHours":24.272766306620127,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:16","end":"01:16","startHours":24.272766306620127,"endHours":25.272766306620127,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:16","end":"02:16","startHours":25.272766306620127,"endHours":26.272766306620127,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:16","end":"03:16","startHours":26.272766306620127,"endHours":27.272766306620127,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:16","end":"04:16","startHours":27.272766306620127,"endHours":28.272766306620127,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:16","end":"05:16","startHours":28.272766306620127,"endHours":29.272766306620127,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"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":17.72560994257159,"eotMinutes":3.6766258240534686,"ayanamsa":19.1643}},"calendars":{"vikram_samvat":1721,"vikram_samvatsara":"Piṅgala","saka_samvat":1586,"saka_samvatsara":"Krodhi","bengali_samvat":1071,"malayalam_era":840,"nanakshahi_year":195,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Pratipada · Vikram 1721 Piṅgala · Śaka 1586 Krodhi"},"festivals":[{"id":"narada-jayanti","name":"Bhagavān Nārada Jayantī","name_sanskrit":"भगवान् नारद जयन्ती","tradition":"Vaishnava","associated_deity":"Devarṣi Nārada (ādi-bhakta · Vyāsa's guru)","significance":"Manifestation of Devarṣi Nārada — ādi-bhakta and tri-loka-saṅcāri who instructed Vyāsa to compose Śrīmad Bhāgavata. Without Nārada, no Bhāgavata; without Bhāgavata, no Krishna-tattva-pratiṣṭhā in Kali Yuga. Falls on Vaiśākha Kṛṣṇa Pratipadā (day after Buddha Pūrṇimā).","vrata":true,"primary_observance":"Recitation of Nārada-Bhakti-Sūtra; meditation on Krishna as taught by Nārada to Vyāsa (Bhāgavata 1.5)","detection":{"tithi_number":16,"tithi_paksha":"Kṛṣṇa","lunar_month":"Vaiśākha","lunar_month_system":"amanta"},"precedence":1,"sources":["Bhāgavata Purāṇa 1.5-6 (Nārada-Vyāsa-saṁvāda)","Nārada-Bhakti-Sūtra"]}],"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":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","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 May 10, 1664 CE · Ayodhyā · Vidhyamitra","description":"May 10, 1664 CE for Ayodhyā: Kṛṣṇa Pratipada, sūryodaya 05:16, sūryāsta 18:39.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1664-05-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1664-05-10","sa":"https://sa.vidhyamitra.com/city/ayodhya/1664-05-10","hi":"https://hi.vidhyamitra.com/city/ayodhya/1664-05-10","x-default":"https://vidhyamitra.com/city/ayodhya/1664-05-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T22:06:24.001Z","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":"2026-06-04T22:06:24.001Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-04T22:06:24.001Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}