{"id":"vidhyamitra:city-day:ayodhya:1980-02-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1980-02-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1980-02-16","date_display":"February 16, 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":2,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444285.770833,"kali_year":5081,"ahargana":1855820.2708,"sun":{"sidereal_longitude":303.0929,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":297.5337,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":354.4408,"elapsed_within_tithi_degrees":6.4408},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":297.5337,"elapsed_within_degrees":4.2004},"yoga":{"number":19,"name":"Parigha","sum_longitude":240.6266},"karana":{"half_tithi_index":59,"name":"Nāga"},"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":1980,"month":2,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444285.770833,"ahargana":1855820.2708,"kali_year":5081,"ayanamsa_lahiri":23.5754,"grahas":{"sun":{"sidereal_longitude":302.945066,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":298.335866,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false,"latitude":0.9483},"mars":{"sidereal_longitude":136.02736600000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":true},"mercury":{"sidereal_longitude":320.67756600000007,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":132.62946599999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":343.876066,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":151.90686600000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":129.7112,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":309.7112,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","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":2,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444285.770833,"kali_year":5081,"ahargana":1855820.2708,"sun":{"sidereal_longitude":303.0929,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":297.5337,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":354.4408,"elapsed_within_tithi_degrees":6.4408},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":297.5337,"elapsed_within_degrees":4.2004},"yoga":{"number":19,"name":"Parigha","sum_longitude":240.6266},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.948,"elongation":5.559},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.948,"opposition_distance":174.441}},"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":"06:38","sunsetLocal":"17:53","solarNoonLocal":"12:16","dayLengthHours":11.258589811605253,"dayLengthDisplay":"11 Hours 15 Mins 31 Secs","nightLengthDisplay":"12 Hours 44 Mins 29 Secs","moonriseLocal":"06:24","moonsetLocal":"17:31","rahuKala":{"name":"Rāhu Kāla","start":"09:27","end":"10:51","startHours":9.447386023797957,"endHours":10.854709750248613,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:40","end":"15:05","startHours":13.669357203149927,"endHours":15.076680929600583,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:38","end":"08:02","startHours":6.6327385708966435,"endHours":8.0400622973473,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:16","end":"09:38","startHours":9.259742860271203,"endHours":9.635029187324712,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:06","end":"07:24","startHours":7.1018464797135294,"endHours":7.402075541356337,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:38","startHours":11.88674714964576,"endHours":12.637319803752778,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:08","end":"05:53","startHours":5.1315932626826095,"endHours":5.882165916789627,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:42","end":"06:38","startHours":5.694522753262873,"endHours":6.6327385708966435,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:53","startHours":14.138465111966813,"endHours":14.88903776607383,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:41","end":"18:05","startHours":17.691328382501897,"endHours":18.091328382501896,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:53","end":"18:22","startHours":17.891328382501896,"endHours":18.36043629131878,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:38","end":"19:23","startHours":17.641328382501896,"endHours":19.391328382501896,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:38","startHours":23.88674714964576,"endHours":24.637319803752778,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:38","end":"08:02","startHours":6.6327385708966435,"endHours":8.0400622973473,"quality":"inauspicious"},{"name":"Śubha","start":"08:02","end":"09:27","startHours":8.0400622973473,"endHours":9.447386023797957,"quality":"auspicious"},{"name":"Roga","start":"09:27","end":"10:51","startHours":9.447386023797957,"endHours":10.854709750248613,"quality":"inauspicious"},{"name":"Udveg","start":"10:51","end":"12:16","startHours":10.854709750248613,"endHours":12.26203347669927,"quality":"inauspicious"},{"name":"Chala","start":"12:16","end":"13:40","startHours":12.26203347669927,"endHours":13.669357203149927,"quality":"neutral"},{"name":"Labha","start":"13:40","end":"15:05","startHours":13.669357203149927,"endHours":15.076680929600583,"quality":"auspicious"},{"name":"Amṛta","start":"15:05","end":"16:29","startHours":15.076680929600583,"endHours":16.48400465605124,"quality":"auspicious"},{"name":"Kāla","start":"16:29","end":"17:53","startHours":16.48400465605124,"endHours":17.891328382501896,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:53","end":"19:29","startHours":17.891328382501896,"endHours":19.48400465605124,"quality":"auspicious"},{"name":"Amṛta","start":"19:29","end":"21:05","startHours":19.48400465605124,"endHours":21.076680929600585,"quality":"auspicious"},{"name":"Kāla","start":"21:05","end":"22:40","startHours":21.076680929600585,"endHours":22.66935720314993,"quality":"inauspicious"},{"name":"Śubha","start":"22:40","end":"00:16","startHours":22.66935720314993,"endHours":24.26203347669927,"quality":"auspicious"},{"name":"Roga","start":"00:16","end":"01:51","startHours":24.26203347669927,"endHours":25.854709750248613,"quality":"inauspicious"},{"name":"Udveg","start":"01:51","end":"03:27","startHours":25.854709750248613,"endHours":27.447386023797957,"quality":"inauspicious"},{"name":"Chala","start":"03:27","end":"05:02","startHours":27.447386023797957,"endHours":29.040062297347298,"quality":"neutral"},{"name":"Labha","start":"05:02","end":"06:38","startHours":29.040062297347298,"endHours":30.63273857089664,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:38","end":"07:38","startHours":6.6327385708966435,"endHours":7.6327385708966435,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:38","end":"08:38","startHours":7.6327385708966435,"endHours":8.632738570896644,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:38","end":"09:38","startHours":8.632738570896644,"endHours":9.632738570896644,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:38","end":"10:38","startHours":9.632738570896644,"endHours":10.632738570896644,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:38","end":"11:38","startHours":10.632738570896644,"endHours":11.632738570896644,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:38","end":"12:38","startHours":11.632738570896644,"endHours":12.632738570896644,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:38","end":"13:38","startHours":12.632738570896644,"endHours":13.632738570896644,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:38","end":"14:38","startHours":13.632738570896644,"endHours":14.632738570896644,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:38","end":"15:38","startHours":14.632738570896644,"endHours":15.632738570896644,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:38","end":"16:38","startHours":15.632738570896644,"endHours":16.63273857089664,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:38","end":"17:38","startHours":16.63273857089664,"endHours":17.63273857089664,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:38","end":"18:38","startHours":17.63273857089664,"endHours":18.63273857089664,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:38","end":"19:38","startHours":18.63273857089664,"endHours":19.63273857089664,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:38","end":"20:38","startHours":19.63273857089664,"endHours":20.63273857089664,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:38","end":"21:38","startHours":20.63273857089664,"endHours":21.63273857089664,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:38","end":"22:38","startHours":21.63273857089664,"endHours":22.63273857089664,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:38","end":"23:38","startHours":22.63273857089664,"endHours":23.63273857089664,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:38","end":"00:38","startHours":23.63273857089664,"endHours":24.63273857089664,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:38","end":"01:38","startHours":24.63273857089664,"endHours":25.63273857089664,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:38","end":"02:38","startHours":25.63273857089664,"endHours":26.63273857089664,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:38","end":"03:38","startHours":26.63273857089664,"endHours":27.63273857089664,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:38","end":"04:38","startHours":27.63273857089664,"endHours":28.63273857089664,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:38","end":"05:38","startHours":28.63273857089664,"endHours":29.63273857089664,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:38","end":"06:38","startHours":29.63273857089664,"endHours":30.63273857089664,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-12.674074787978121,"eotMinutes":-14.538008601956186,"ayanamsa":23.5754}},"calendars":{"vikram_samvat":2037,"vikram_samvatsara":"Śrīmukha","saka_samvat":1902,"saka_samvatsara":"Raudra","bengali_samvat":1387,"malayalam_era":1156,"nanakshahi_year":511,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Amāvasyā · Vikram 2037 Śrīmukha · Śaka 1902 Raudra"},"festivals":[],"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":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","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 February 16, 1980 CE · Ayodhyā · Vidhyamitra","description":"February 16, 1980 CE for Ayodhyā: Kṛṣṇa Amāvasyā, sūryodaya 06:38, sūryāsta 17:53.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1980-02-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1980-02-16","sa":"https://sa.vidhyamitra.com/city/ayodhya/1980-02-16","hi":"https://hi.vidhyamitra.com/city/ayodhya/1980-02-16","x-default":"https://vidhyamitra.com/city/ayodhya/1980-02-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T09:14:56.950Z","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":"2026-05-31T09:14:56.950Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T09:14:56.950Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}