{"id":"vidhyamitra:city-day:ayodhya:1980-10-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1980-10-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1980-10-31","date_display":"October 31, 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":10,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444543.770833,"kali_year":5082,"ahargana":1856078.2708,"sun":{"sidereal_longitude":193.5508,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":104.7826,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":271.2318,"elapsed_within_tithi_degrees":7.2318},"nakshatra":{"number":8,"name":"Puṣya","pada":4,"moon_longitude":104.7826,"elapsed_within_degrees":11.4492},"yoga":{"number":23,"name":"Śubha","sum_longitude":298.3334},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":10,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444543.770833,"ahargana":1856078.2708,"kali_year":5082,"ayanamsa_lahiri":23.5852,"grahas":{"sun":{"sidereal_longitude":194.19020899999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":108.25820899999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false,"latitude":-0.8777},"mars":{"sidereal_longitude":230.31950899999993,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":202.24800900000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":157.131709,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":157.44230900000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":160.89810899999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":116.0411,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":296.0411,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":1980,"month":10,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444543.770833,"kali_year":5082,"ahargana":1856078.2708,"sun":{"sidereal_longitude":193.5508,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":104.7826,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":271.2318,"elapsed_within_tithi_degrees":7.2318},"nakshatra":{"number":8,"name":"Puṣya","pada":4,"moon_longitude":104.7826,"elapsed_within_degrees":11.4492},"yoga":{"number":23,"name":"Śubha","sum_longitude":298.3334},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.878,"elongation":88.768},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.878,"opposition_distance":91.232}},"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":"06:10","sunsetLocal":"17:19","solarNoonLocal":"11:45","dayLengthHours":11.157225687437935,"dayLengthDisplay":"11 Hours 09 Mins 26 Secs","nightLengthDisplay":"12 Hours 50 Mins 34 Secs","moonriseLocal":"23:22","moonsetLocal":"12:40","rahuKala":{"name":"Rāhu Kāla","start":"10:21","end":"11:45","startHours":10.35086712989479,"endHours":11.74552034082453,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:32","end":"15:56","startHours":14.534826762684014,"endHours":15.929479973613757,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:34","end":"08:57","startHours":7.561560708035306,"endHours":8.956213918965048,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:46","end":"09:09","startHours":8.77026015750775,"endHours":9.142167680422347,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:56","startHours":6.631791900748811,"endHours":6.929317919080489,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:22","end":"12:07","startHours":11.373612817909933,"endHours":12.117427863739128,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:41","end":"05:25","startHours":4.679277405447173,"endHours":5.423092451276368,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:14","end":"06:10","startHours":5.237138689819069,"endHours":6.166907497105564,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:36","end":"14:21","startHours":13.60505795539752,"endHours":14.348873001226716,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:07","end":"17:31","startHours":17.1241331845435,"endHours":17.524133184543498,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:19","end":"17:47","startHours":17.3241331845435,"endHours":17.789017588186745,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:04","end":"18:49","startHours":17.0741331845435,"endHours":18.8241331845435,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:22","end":"00:07","startHours":23.373612817909933,"endHours":24.117427863739128,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:10","end":"07:34","startHours":6.166907497105564,"endHours":7.561560708035306,"quality":"neutral"},{"name":"Labha","start":"07:34","end":"08:57","startHours":7.561560708035306,"endHours":8.956213918965048,"quality":"auspicious"},{"name":"Amṛta","start":"08:57","end":"10:21","startHours":8.956213918965048,"endHours":10.35086712989479,"quality":"auspicious"},{"name":"Kāla","start":"10:21","end":"11:45","startHours":10.35086712989479,"endHours":11.74552034082453,"quality":"inauspicious"},{"name":"Śubha","start":"11:45","end":"13:08","startHours":11.74552034082453,"endHours":13.140173551754273,"quality":"auspicious"},{"name":"Roga","start":"13:08","end":"14:32","startHours":13.140173551754273,"endHours":14.534826762684014,"quality":"inauspicious"},{"name":"Udveg","start":"14:32","end":"15:56","startHours":14.534826762684014,"endHours":15.929479973613757,"quality":"inauspicious"},{"name":"Chala","start":"15:56","end":"17:19","startHours":15.929479973613757,"endHours":17.3241331845435,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:19","end":"18:56","startHours":17.3241331845435,"endHours":18.929479973613756,"quality":"inauspicious"},{"name":"Udveg","start":"18:56","end":"20:32","startHours":18.929479973613756,"endHours":20.534826762684016,"quality":"inauspicious"},{"name":"Chala","start":"20:32","end":"22:08","startHours":20.534826762684016,"endHours":22.140173551754273,"quality":"neutral"},{"name":"Labha","start":"22:08","end":"23:45","startHours":22.140173551754273,"endHours":23.74552034082453,"quality":"auspicious"},{"name":"Amṛta","start":"23:45","end":"01:21","startHours":23.74552034082453,"endHours":25.350867129894787,"quality":"auspicious"},{"name":"Kāla","start":"01:21","end":"02:57","startHours":25.350867129894787,"endHours":26.956213918965048,"quality":"inauspicious"},{"name":"Śubha","start":"02:57","end":"04:34","startHours":26.956213918965048,"endHours":28.561560708035305,"quality":"auspicious"},{"name":"Roga","start":"04:34","end":"06:10","startHours":28.561560708035305,"endHours":30.166907497105562,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:10","end":"07:10","startHours":6.166907497105564,"endHours":7.166907497105564,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:10","end":"08:10","startHours":7.166907497105564,"endHours":8.166907497105564,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:10","end":"09:10","startHours":8.166907497105564,"endHours":9.166907497105564,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:10","end":"10:10","startHours":9.166907497105564,"endHours":10.166907497105564,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:10","end":"11:10","startHours":10.166907497105564,"endHours":11.166907497105564,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:10","end":"12:10","startHours":11.166907497105564,"endHours":12.166907497105564,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:10","end":"13:10","startHours":12.166907497105564,"endHours":13.166907497105564,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:10","end":"14:10","startHours":13.166907497105564,"endHours":14.166907497105564,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:10","end":"15:10","startHours":14.166907497105564,"endHours":15.166907497105564,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:10","end":"16:10","startHours":15.166907497105564,"endHours":16.166907497105562,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:10","end":"17:10","startHours":16.166907497105562,"endHours":17.166907497105562,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:10","end":"18:10","startHours":17.166907497105562,"endHours":18.166907497105562,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:10","end":"19:10","startHours":18.166907497105562,"endHours":19.166907497105562,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:10","end":"20:10","startHours":19.166907497105562,"endHours":20.166907497105562,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:10","end":"21:10","startHours":20.166907497105562,"endHours":21.166907497105562,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:10","end":"22:10","startHours":21.166907497105562,"endHours":22.166907497105562,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:10","end":"23:10","startHours":22.166907497105562,"endHours":23.166907497105562,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:10","end":"00:10","startHours":23.166907497105562,"endHours":24.166907497105562,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:10","end":"01:10","startHours":24.166907497105562,"endHours":25.166907497105562,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:10","end":"02:10","startHours":25.166907497105562,"endHours":26.166907497105562,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:10","end":"03:10","startHours":26.166907497105562,"endHours":27.166907497105562,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:10","end":"04:10","startHours":27.166907497105562,"endHours":28.166907497105562,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:10","end":"05:10","startHours":28.166907497105562,"endHours":29.166907497105562,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:10","end":"06:10","startHours":29.166907497105562,"endHours":30.166907497105562,"planetary_lord":"Mars"}],"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":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"South-East","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-14.101365464800175,"eotMinutes":16.45277955052819,"ayanamsa":23.5852}},"calendars":{"vikram_samvat":2037,"vikram_samvatsara":"Śrīmukha","saka_samvat":1902,"saka_samvatsara":"Raudra","bengali_samvat":1387,"malayalam_era":1156,"nanakshahi_year":511,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Aṣṭamī · Vikram 2037 Śrīmukha · Śaka 1902 Raudra"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 Kṛṣṇa Aṣṭamī","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 October 31, 1980 CE · Ayodhyā · Vidhyamitra","description":"October 31, 1980 CE for Ayodhyā: Kṛṣṇa Aṣṭamī, sūryodaya 06:10, sūryāsta 17:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1980-10-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1980-10-31","sa":"https://sa.vidhyamitra.com/city/ayodhya/1980-10-31","hi":"https://hi.vidhyamitra.com/city/ayodhya/1980-10-31","x-default":"https://vidhyamitra.com/city/ayodhya/1980-10-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T08:56:25.006Z","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":"2026-05-31T08:56:25.006Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T08:56:25.006Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}