{"id":"vidhyamitra:city-day:omkareshwar:1981-02-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/omkareshwar/1981-02-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-02-16","date_display":"February 16, 1981 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":1981,"month":2,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444651.770833,"kali_year":5082,"ahargana":1856186.2708,"sun":{"sidereal_longitude":303.8449,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":89.1947,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":145.3498,"elapsed_within_tithi_degrees":1.3498},"nakshatra":{"number":7,"name":"Punarvasu","pada":3,"moon_longitude":89.1947,"elapsed_within_degrees":9.1947},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":33.0396},"karana":{"half_tithi_index":24,"name":"Kaulava"},"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":1981,"month":2,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444651.770833,"ahargana":1856186.2708,"kali_year":5082,"ayanamsa_lahiri":23.5894,"grahas":{"sun":{"sidereal_longitude":303.69598199999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":88.59758199999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false,"latitude":-1.6203},"mars":{"sidereal_longitude":313.88758200000007,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":307.03748199999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":166.08368199999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"venus":{"sidereal_longitude":291.45068200000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":165.27678200000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":110.3188,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":290.3188,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1981,"month":2,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444651.770833,"kali_year":5082,"ahargana":1856186.2708,"sun":{"sidereal_longitude":303.8449,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":89.1947,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":145.3498,"elapsed_within_tithi_degrees":1.3498},"nakshatra":{"number":7,"name":"Punarvasu","pada":3,"moon_longitude":89.1947,"elapsed_within_degrees":9.1947},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":33.0396},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.62,"elongation":145.35},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.62,"opposition_distance":34.65}},"eclipse_window_40days":[{"offset_days":-11,"type":"solar","occurs":true,"moon_latitude":-0.15,"elongation":0.162}]},"city":{"slug":"omkareshwar","name":"Oṁkāreśvar","lat":22.2429,"lon":76.1497,"tz_offset_hours":5.5,"state":"Madhya Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"omkareshwar","name":"Oṁkāreśvar","lat":22.2429,"lon":76.1497,"tz_offset_hours":5.5,"state":"Madhya Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"06:57","sunsetLocal":"18:23","solarNoonLocal":"12:40","dayLengthHours":11.434690630332966,"dayLengthDisplay":"11 Hours 26 Mins 05 Secs","nightLengthDisplay":"12 Hours 33 Mins 55 Secs","moonriseLocal":"15:40","moonsetLocal":"05:00","rahuKala":{"name":"Rāhu Kāla","start":"08:23","end":"09:48","startHours":8.377644490324407,"endHours":9.806980819116028,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:14","end":"12:40","startHours":11.236317147907648,"endHours":12.66565347669927,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:06","end":"15:31","startHours":14.09498980549089,"endHours":15.52432613428251,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:37","end":"10:00","startHours":9.616402641943811,"endHours":9.997558996288245,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:25","end":"07:44","startHours":7.424753604463326,"endHours":7.729678687938872,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:17","end":"13:03","startHours":12.284497122354837,"endHours":13.046809831043701,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:25","end":"06:11","startHours":5.423682744155057,"endHours":6.185995452843922,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:00","end":"06:57","startHours":5.995417275671706,"endHours":6.948308161532786,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:34","end":"15:20","startHours":14.57143524842143,"endHours":15.333747957110294,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:11","end":"18:35","startHours":18.182998791865753,"endHours":18.58299879186575,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:23","end":"18:52","startHours":18.382998791865752,"endHours":18.859444234796293,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:08","end":"19:53","startHours":18.132998791865752,"endHours":19.882998791865752,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:17","end":"01:03","startHours":24.284497122354836,"endHours":25.046809831043703,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:57","end":"08:23","startHours":6.948308161532786,"endHours":8.377644490324407,"quality":"auspicious"},{"name":"Kāla","start":"08:23","end":"09:48","startHours":8.377644490324407,"endHours":9.806980819116028,"quality":"inauspicious"},{"name":"Śubha","start":"09:48","end":"11:14","startHours":9.806980819116028,"endHours":11.236317147907648,"quality":"auspicious"},{"name":"Roga","start":"11:14","end":"12:40","startHours":11.236317147907648,"endHours":12.66565347669927,"quality":"inauspicious"},{"name":"Udveg","start":"12:40","end":"14:06","startHours":12.66565347669927,"endHours":14.09498980549089,"quality":"inauspicious"},{"name":"Chala","start":"14:06","end":"15:31","startHours":14.09498980549089,"endHours":15.52432613428251,"quality":"neutral"},{"name":"Labha","start":"15:31","end":"16:57","startHours":15.52432613428251,"endHours":16.95366246307413,"quality":"auspicious"},{"name":"Amṛta","start":"16:57","end":"18:23","startHours":16.95366246307413,"endHours":18.382998791865752,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:23","end":"19:57","startHours":18.382998791865752,"endHours":19.95366246307413,"quality":"neutral"},{"name":"Labha","start":"19:57","end":"21:31","startHours":19.95366246307413,"endHours":21.52432613428251,"quality":"auspicious"},{"name":"Amṛta","start":"21:31","end":"23:06","startHours":21.52432613428251,"endHours":23.09498980549089,"quality":"auspicious"},{"name":"Kāla","start":"23:06","end":"00:40","startHours":23.09498980549089,"endHours":24.66565347669927,"quality":"inauspicious"},{"name":"Śubha","start":"00:40","end":"02:14","startHours":24.66565347669927,"endHours":26.23631714790765,"quality":"auspicious"},{"name":"Roga","start":"02:14","end":"03:48","startHours":26.23631714790765,"endHours":27.806980819116028,"quality":"inauspicious"},{"name":"Udveg","start":"03:48","end":"05:23","startHours":27.806980819116028,"endHours":29.377644490324407,"quality":"inauspicious"},{"name":"Chala","start":"05:23","end":"06:57","startHours":29.377644490324407,"endHours":30.948308161532786,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:57","end":"07:57","startHours":6.948308161532786,"endHours":7.948308161532786,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:57","end":"08:57","startHours":7.948308161532786,"endHours":8.948308161532786,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:57","end":"09:57","startHours":8.948308161532786,"endHours":9.948308161532786,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:57","end":"10:57","startHours":9.948308161532786,"endHours":10.948308161532786,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:57","end":"11:57","startHours":10.948308161532786,"endHours":11.948308161532786,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:57","end":"12:57","startHours":11.948308161532786,"endHours":12.948308161532786,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:57","end":"13:57","startHours":12.948308161532786,"endHours":13.948308161532786,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:57","end":"14:57","startHours":13.948308161532786,"endHours":14.948308161532786,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:57","end":"15:57","startHours":14.948308161532786,"endHours":15.948308161532786,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:57","end":"16:57","startHours":15.948308161532786,"endHours":16.948308161532786,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:57","end":"17:57","startHours":16.948308161532786,"endHours":17.948308161532786,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:57","end":"18:57","startHours":17.948308161532786,"endHours":18.948308161532786,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:57","end":"19:57","startHours":18.948308161532786,"endHours":19.948308161532786,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:57","end":"20:57","startHours":19.948308161532786,"endHours":20.948308161532786,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:57","end":"21:57","startHours":20.948308161532786,"endHours":21.948308161532786,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:57","end":"22:57","startHours":21.948308161532786,"endHours":22.948308161532786,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:57","end":"23:57","startHours":22.948308161532786,"endHours":23.948308161532786,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:57","end":"00:57","startHours":23.948308161532786,"endHours":24.948308161532786,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:57","end":"01:57","startHours":24.948308161532786,"endHours":25.948308161532786,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:57","end":"02:57","startHours":25.948308161532786,"endHours":26.948308161532786,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:57","end":"03:57","startHours":26.948308161532786,"endHours":27.948308161532786,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:57","end":"04:57","startHours":27.948308161532786,"endHours":28.948308161532786,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:57","end":"05:57","startHours":28.948308161532786,"endHours":29.948308161532786,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:57","end":"06:57","startHours":29.948308161532786,"endHours":30.948308161532786,"planetary_lord":"Venus"}],"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","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-12.412975096864393,"eotMinutes":-14.538008601956186,"ayanamsa":23.5894}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","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":"Māgha Śukla Trayodaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"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":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Punarvasu","url":"/day/-1626101-04-03","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"omkareshwar"},"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, 1981 CE · Oṁkāreśvar · Vidhyamitra","description":"February 16, 1981 CE for Oṁkāreśvar: Śukla Trayodaśī, sūryodaya 06:57, sūryāsta 18:23.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/omkareshwar/1981-02-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/omkareshwar/1981-02-16","sa":"https://sa.vidhyamitra.com/city/omkareshwar/1981-02-16","hi":"https://hi.vidhyamitra.com/city/omkareshwar/1981-02-16","x-default":"https://vidhyamitra.com/city/omkareshwar/1981-02-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:11:59.063Z","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":"2026-05-31T18:11:59.063Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:11:59.063Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}