{"id":"vidhyamitra:city-day:ayodhya:1975-05-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1975-05-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1975-05-13","date_display":"May 13, 1975 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":1975,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2442545.770833,"kali_year":5077,"ahargana":1854080.2708,"sun":{"sidereal_longitude":28.2194,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":49.268,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":21.0486,"elapsed_within_tithi_degrees":9.0486},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":49.268,"elapsed_within_degrees":9.268},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":77.4875},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1975,"month":5,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2442545.770833,"ahargana":1854080.2708,"kali_year":5077,"ayanamsa_lahiri":23.5088,"grahas":{"sun":{"sidereal_longitude":28.165547000000004,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":49.11674700000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false,"latitude":-0.5761},"mars":{"sidereal_longitude":330.5648470000001,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":49.92674699999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":349.482447,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":70.472647,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":81.57984699999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":221.9048,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":41.9048,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"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":1975,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2442545.770833,"kali_year":5077,"ahargana":1854080.2708,"sun":{"sidereal_longitude":28.2194,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":49.268,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":21.0486,"elapsed_within_tithi_degrees":9.0486},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":49.268,"elapsed_within_degrees":9.268},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":77.4875},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.576,"elongation":21.049},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.576,"opposition_distance":158.951}},"eclipse_window_40days":[{"offset_days":12,"type":"lunar","occurs":true,"moon_latitude":-0.182,"opposition_distance":0.751}]},"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":"05:15","sunsetLocal":"18:40","solarNoonLocal":"11:57","dayLengthHours":13.406183794911055,"dayLengthDisplay":"13 Hours 24 Mins 22 Secs","nightLengthDisplay":"10 Hours 35 Mins 38 Secs","moonriseLocal":"06:31","moonsetLocal":"20:12","rahuKala":{"name":"Rāhu Kāla","start":"15:19","end":"16:59","startHours":15.30872196966849,"endHours":16.98449494403237,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:36","end":"10:17","startHours":8.605630072212964,"endHours":10.281403046576845,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:57","end":"13:38","startHours":11.957176020940727,"endHours":13.63294899530461,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:23","end":"08:50","startHours":8.382193675631113,"endHours":8.829066468794814,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:49","end":"06:10","startHours":5.812675114939827,"endHours":6.170173349470788,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:31","end":"12:24","startHours":11.510303227777024,"endHours":12.40404881410443,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:28","end":"04:22","startHours":3.4665929508303925,"endHours":4.360338537157796,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:08","end":"05:15","startHours":4.136902140575945,"endHours":5.2540841234852,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:05","startHours":14.191539986759237,"endHours":15.08528557308664,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:28","end":"18:52","startHours":18.460267918396255,"endHours":18.860267918396254,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:40","end":"19:13","startHours":18.660267918396254,"endHours":19.21885890985088,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:25","end":"20:10","startHours":18.410267918396254,"endHours":20.160267918396254,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:31","end":"00:24","startHours":23.510303227777026,"endHours":24.40404881410443,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:15","end":"06:56","startHours":5.2540841234852,"endHours":6.929857097849082,"quality":"inauspicious"},{"name":"Udveg","start":"06:56","end":"08:36","startHours":6.929857097849082,"endHours":8.605630072212964,"quality":"inauspicious"},{"name":"Chala","start":"08:36","end":"10:17","startHours":8.605630072212964,"endHours":10.281403046576845,"quality":"neutral"},{"name":"Labha","start":"10:17","end":"11:57","startHours":10.281403046576845,"endHours":11.957176020940727,"quality":"auspicious"},{"name":"Amṛta","start":"11:57","end":"13:38","startHours":11.957176020940727,"endHours":13.63294899530461,"quality":"auspicious"},{"name":"Kāla","start":"13:38","end":"15:19","startHours":13.63294899530461,"endHours":15.30872196966849,"quality":"inauspicious"},{"name":"Śubha","start":"15:19","end":"16:59","startHours":15.30872196966849,"endHours":16.98449494403237,"quality":"auspicious"},{"name":"Roga","start":"16:59","end":"18:40","startHours":16.98449494403237,"endHours":18.660267918396254,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:40","end":"19:59","startHours":18.660267918396254,"endHours":19.984494944032374,"quality":"inauspicious"},{"name":"Śubha","start":"19:59","end":"21:19","startHours":19.984494944032374,"endHours":21.30872196966849,"quality":"auspicious"},{"name":"Roga","start":"21:19","end":"22:38","startHours":21.30872196966849,"endHours":22.63294899530461,"quality":"inauspicious"},{"name":"Udveg","start":"22:38","end":"23:57","startHours":22.63294899530461,"endHours":23.95717602094073,"quality":"inauspicious"},{"name":"Chala","start":"23:57","end":"01:17","startHours":23.95717602094073,"endHours":25.281403046576845,"quality":"neutral"},{"name":"Labha","start":"01:17","end":"02:36","startHours":25.281403046576845,"endHours":26.605630072212964,"quality":"auspicious"},{"name":"Amṛta","start":"02:36","end":"03:56","startHours":26.605630072212964,"endHours":27.92985709784908,"quality":"auspicious"},{"name":"Kāla","start":"03:56","end":"05:15","startHours":27.92985709784908,"endHours":29.2540841234852,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:15","end":"06:15","startHours":5.2540841234852,"endHours":6.2540841234852,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:15","end":"07:15","startHours":6.2540841234852,"endHours":7.2540841234852,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:15","end":"08:15","startHours":7.2540841234852,"endHours":8.2540841234852,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:15","end":"09:15","startHours":8.2540841234852,"endHours":9.2540841234852,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:15","end":"10:15","startHours":9.2540841234852,"endHours":10.2540841234852,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:15","end":"11:15","startHours":10.2540841234852,"endHours":11.2540841234852,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:15","end":"12:15","startHours":11.2540841234852,"endHours":12.2540841234852,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:15","end":"13:15","startHours":12.2540841234852,"endHours":13.2540841234852,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:15","end":"14:15","startHours":13.2540841234852,"endHours":14.2540841234852,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:15","end":"15:15","startHours":14.2540841234852,"endHours":15.2540841234852,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:15","end":"16:15","startHours":15.2540841234852,"endHours":16.2540841234852,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:15","end":"17:15","startHours":16.2540841234852,"endHours":17.2540841234852,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:15","end":"18:15","startHours":17.2540841234852,"endHours":18.2540841234852,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:15","end":"19:15","startHours":18.2540841234852,"endHours":19.2540841234852,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:15","end":"20:15","startHours":19.2540841234852,"endHours":20.2540841234852,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:15","end":"21:15","startHours":20.2540841234852,"endHours":21.2540841234852,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:15","end":"22:15","startHours":21.2540841234852,"endHours":22.2540841234852,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:15","end":"23:15","startHours":22.2540841234852,"endHours":23.2540841234852,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:15","end":"00:15","startHours":23.2540841234852,"endHours":24.2540841234852,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:15","end":"01:15","startHours":24.2540841234852,"endHours":25.2540841234852,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:15","end":"02:15","startHours":25.2540841234852,"endHours":26.2540841234852,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:15","end":"03:15","startHours":26.2540841234852,"endHours":27.2540841234852,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:15","end":"04:15","startHours":27.2540841234852,"endHours":28.2540841234852,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:15","end":"05:15","startHours":28.2540841234852,"endHours":29.2540841234852,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":18.181045789796745,"eotMinutes":3.7534387435564067,"ayanamsa":23.5088}},"calendars":{"vikram_samvat":2032,"vikram_samvatsara":"Vibhava","saka_samvat":1897,"saka_samvatsara":"Rākṣasa","bengali_samvat":1382,"malayalam_era":1151,"nanakshahi_year":506,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","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":"Vaiśākha Śukla Dvitīyā · Vikram 2032 Vibhava · Śaka 1897 Rākṣasa"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","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 13, 1975 CE · Ayodhyā · Vidhyamitra","description":"May 13, 1975 CE for Ayodhyā: Śukla Dvitīyā, sūryodaya 05:15, sūryāsta 18:40.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1975-05-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1975-05-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/1975-05-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/1975-05-13","x-default":"https://vidhyamitra.com/city/ayodhya/1975-05-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T00:13:06.102Z","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":"2026-05-31T00:13:06.102Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T00:13:06.102Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}