{"id":"vidhyamitra:city-day:ayodhya:1980-05-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1980-05-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1980-05-12","date_display":"May 12, 1980 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":1980,"month":5,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444371.770833,"kali_year":5082,"ahargana":1855906.2708,"sun":{"sidereal_longitude":27.9376,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":356.1773,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":328.2398,"elapsed_within_tithi_degrees":4.2398},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":356.1773,"elapsed_within_degrees":9.5107},"yoga":{"number":2,"name":"Prīti","sum_longitude":24.1149},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1980,"month":5,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444371.770833,"ahargana":1855906.2708,"kali_year":5082,"ayanamsa_lahiri":23.5787,"grahas":{"sun":{"sidereal_longitude":27.89348000000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":353.80168,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false,"latitude":-3.4969},"mars":{"sidereal_longitude":129.10078,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":26.391779999999983,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":126.90238,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":66.42928,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":146.50958000000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":125.1545,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":305.1545,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"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":1980,"month":5,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444371.770833,"kali_year":5082,"ahargana":1855906.2708,"sun":{"sidereal_longitude":27.9376,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":356.1773,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":328.2398,"elapsed_within_tithi_degrees":4.2398},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":356.1773,"elapsed_within_degrees":9.5107},"yoga":{"number":2,"name":"Prīti","sum_longitude":24.1149},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.497,"elongation":31.76},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.497,"opposition_distance":148.24}},"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":"05:15","sunsetLocal":"18:40","solarNoonLocal":"11:57","dayLengthHours":13.402153569830077,"dayLengthDisplay":"13 Hours 24 Mins 08 Secs","nightLengthDisplay":"10 Hours 35 Mins 52 Secs","moonriseLocal":"03:25","moonsetLocal":"15:58","rahuKala":{"name":"Rāhu Kāla","start":"06:56","end":"08:36","startHours":6.931632749985915,"endHours":8.606901946214673,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:17","end":"11:57","startHours":10.282171142443435,"endHours":11.957440338672193,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:38","end":"15:18","startHours":13.632709534900954,"endHours":15.307978731129712,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:23","end":"08:50","startHours":8.38353272005084,"endHours":8.83027117237851,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:49","end":"06:10","startHours":5.814786619166742,"endHours":6.172177381028877,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:31","end":"12:24","startHours":11.510701886344524,"endHours":12.404178790999861,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:28","end":"04:22","startHours":3.4694097444464784,"endHours":4.362886649101816,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:08","end":"05:15","startHours":4.139517422937982,"endHours":5.256363553757155,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:05","startHours":14.191132600310539,"endHours":15.084609504965877,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:28","end":"18:52","startHours":18.45851712358723,"endHours":18.85851712358723,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:40","end":"19:13","startHours":18.65851712358723,"endHours":19.216940188996816,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:25","end":"20:10","startHours":18.40851712358723,"endHours":20.15851712358723,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:31","end":"00:24","startHours":23.510701886344524,"endHours":24.40417879099986,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:15","end":"06:56","startHours":5.256363553757155,"endHours":6.931632749985915,"quality":"auspicious"},{"name":"Kāla","start":"06:56","end":"08:36","startHours":6.931632749985915,"endHours":8.606901946214673,"quality":"inauspicious"},{"name":"Śubha","start":"08:36","end":"10:17","startHours":8.606901946214673,"endHours":10.282171142443435,"quality":"auspicious"},{"name":"Roga","start":"10:17","end":"11:57","startHours":10.282171142443435,"endHours":11.957440338672193,"quality":"inauspicious"},{"name":"Udveg","start":"11:57","end":"13:38","startHours":11.957440338672193,"endHours":13.632709534900954,"quality":"inauspicious"},{"name":"Chala","start":"13:38","end":"15:18","startHours":13.632709534900954,"endHours":15.307978731129712,"quality":"neutral"},{"name":"Labha","start":"15:18","end":"16:59","startHours":15.307978731129712,"endHours":16.983247927358473,"quality":"auspicious"},{"name":"Amṛta","start":"16:59","end":"18:40","startHours":16.983247927358473,"endHours":18.65851712358723,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:40","end":"19:59","startHours":18.65851712358723,"endHours":19.98324792735847,"quality":"neutral"},{"name":"Labha","start":"19:59","end":"21:18","startHours":19.98324792735847,"endHours":21.30797873112971,"quality":"auspicious"},{"name":"Amṛta","start":"21:18","end":"22:38","startHours":21.30797873112971,"endHours":22.632709534900954,"quality":"auspicious"},{"name":"Kāla","start":"22:38","end":"23:57","startHours":22.632709534900954,"endHours":23.957440338672193,"quality":"inauspicious"},{"name":"Śubha","start":"23:57","end":"01:17","startHours":23.957440338672193,"endHours":25.28217114244343,"quality":"auspicious"},{"name":"Roga","start":"01:17","end":"02:36","startHours":25.28217114244343,"endHours":26.606901946214673,"quality":"inauspicious"},{"name":"Udveg","start":"02:36","end":"03:56","startHours":26.606901946214673,"endHours":27.931632749985916,"quality":"inauspicious"},{"name":"Chala","start":"03:56","end":"05:15","startHours":27.931632749985916,"endHours":29.256363553757154,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:15","end":"06:15","startHours":5.256363553757155,"endHours":6.256363553757155,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:15","end":"07:15","startHours":6.256363553757155,"endHours":7.256363553757155,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:15","end":"08:15","startHours":7.256363553757155,"endHours":8.256363553757154,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:15","end":"09:15","startHours":8.256363553757154,"endHours":9.256363553757154,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:15","end":"10:15","startHours":9.256363553757154,"endHours":10.256363553757154,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:15","end":"11:15","startHours":10.256363553757154,"endHours":11.256363553757154,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:15","end":"12:15","startHours":11.256363553757154,"endHours":12.256363553757154,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:15","end":"13:15","startHours":12.256363553757154,"endHours":13.256363553757154,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:15","end":"14:15","startHours":13.256363553757154,"endHours":14.256363553757154,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:15","end":"15:15","startHours":14.256363553757154,"endHours":15.256363553757154,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:15","end":"16:15","startHours":15.256363553757154,"endHours":16.256363553757154,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:15","end":"17:15","startHours":16.256363553757154,"endHours":17.256363553757154,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:15","end":"18:15","startHours":17.256363553757154,"endHours":18.256363553757154,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:15","end":"19:15","startHours":18.256363553757154,"endHours":19.256363553757154,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:15","end":"20:15","startHours":19.256363553757154,"endHours":20.256363553757154,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:15","end":"21:15","startHours":20.256363553757154,"endHours":21.256363553757154,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:15","end":"22:15","startHours":21.256363553757154,"endHours":22.256363553757154,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:15","end":"23:15","startHours":22.256363553757154,"endHours":23.256363553757154,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:15","end":"00:15","startHours":23.256363553757154,"endHours":24.256363553757154,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:15","end":"01:15","startHours":24.256363553757154,"endHours":25.256363553757154,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:15","end":"02:15","startHours":25.256363553757154,"endHours":26.256363553757154,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:15","end":"03:15","startHours":26.256363553757154,"endHours":27.256363553757154,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:15","end":"04:15","startHours":27.256363553757154,"endHours":28.256363553757154,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:15","end":"05:15","startHours":28.256363553757154,"endHours":29.256363553757154,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"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":"North-East","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":18.12845276463754,"eotMinutes":3.7375796796685163,"ayanamsa":23.5787}},"calendars":{"vikram_samvat":2037,"vikram_samvatsara":"Śrīmukha","saka_samvat":1902,"saka_samvatsara":"Raudra","bengali_samvat":1387,"malayalam_era":1156,"nanakshahi_year":511,"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":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Trayodaśī · Vikram 2037 Śrīmukha · Śaka 1902 Raudra"},"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":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 May 12, 1980 CE · Ayodhyā · Vidhyamitra","description":"May 12, 1980 CE for Ayodhyā: Kṛṣṇa Trayodaśī, sūryodaya 05:15, sūryāsta 18:40.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1980-05-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1980-05-12","sa":"https://sa.vidhyamitra.com/city/ayodhya/1980-05-12","hi":"https://hi.vidhyamitra.com/city/ayodhya/1980-05-12","x-default":"https://vidhyamitra.com/city/ayodhya/1980-05-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T06:23:39.549Z","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":"2026-05-31T06:23:39.549Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T06:23:39.549Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}