{"id":"vidhyamitra:city-day:ayodhya:2021-02-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2021-02-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2021-02-12","date_display":"February 12, 2021 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":2021,"month":2,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459257.770833,"kali_year":5122,"ahargana":1870792.2708,"sun":{"sidereal_longitude":299.4272,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":304.335,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":4.9078,"elapsed_within_tithi_degrees":4.9078},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":304.335,"elapsed_within_degrees":11.0017},"yoga":{"number":19,"name":"Parigha","sum_longitude":243.7623},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"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":2021,"month":2,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459257.770833,"ahargana":1870792.2708,"kali_year":5122,"ayanamsa_lahiri":24.148,"grahas":{"sun":{"sidereal_longitude":299.392526,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":302.242126,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false,"latitude":-4.1691},"mars":{"sidereal_longitude":24.172026000000017,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":291.55422599999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":288.52212600000007,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"venus":{"sidereal_longitude":288.697726,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":282.43072600000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":56.4226,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":236.4226,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"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":2021,"month":2,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459257.770833,"kali_year":5122,"ahargana":1870792.2708,"sun":{"sidereal_longitude":299.4272,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":304.335,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":4.9078,"elapsed_within_tithi_degrees":4.9078},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":304.335,"elapsed_within_degrees":11.0017},"yoga":{"number":19,"name":"Parigha","sum_longitude":243.7623},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.169,"elongation":4.908},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.169,"opposition_distance":175.092}},"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":"06:40","sunsetLocal":"17:51","solarNoonLocal":"12:16","dayLengthHours":11.187891139321469,"dayLengthDisplay":"11 Hours 11 Mins 16 Secs","nightLengthDisplay":"12 Hours 48 Mins 44 Secs","moonriseLocal":"06:51","moonsetLocal":"18:04","rahuKala":{"name":"Rāhu Kāla","start":"10:52","end":"12:16","startHours":10.864492475832991,"endHours":12.262978868248174,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:04","end":"16:28","startHours":15.059951653078542,"endHours":16.458438045493725,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:04","end":"09:28","startHours":8.067519691002623,"endHours":9.466006083417806,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:17","end":"09:39","startHours":9.279541231095783,"endHours":9.652470935739832,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:08","end":"07:26","startHours":7.1351954293925015,"endHours":7.433539193107741,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:38","startHours":11.890049163604125,"endHours":12.635908572892223,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:11","end":"05:55","startHours":5.177314480011244,"endHours":5.923173889299342,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:44","end":"06:40","startHours":5.7367090369773175,"endHours":6.66903329858744,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:52","startHours":14.127627391468419,"endHours":14.873486800756517,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:39","end":"18:03","startHours":17.65692443790891,"endHours":18.056924437908908,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:51","end":"18:19","startHours":17.85692443790891,"endHours":18.32308656871397,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:36","end":"19:21","startHours":17.60692443790891,"endHours":19.35692443790891,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:38","startHours":23.890049163604125,"endHours":24.635908572892227,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:40","end":"08:04","startHours":6.66903329858744,"endHours":8.067519691002623,"quality":"neutral"},{"name":"Labha","start":"08:04","end":"09:28","startHours":8.067519691002623,"endHours":9.466006083417806,"quality":"auspicious"},{"name":"Amṛta","start":"09:28","end":"10:52","startHours":9.466006083417806,"endHours":10.864492475832991,"quality":"auspicious"},{"name":"Kāla","start":"10:52","end":"12:16","startHours":10.864492475832991,"endHours":12.262978868248174,"quality":"inauspicious"},{"name":"Śubha","start":"12:16","end":"13:40","startHours":12.262978868248174,"endHours":13.661465260663357,"quality":"auspicious"},{"name":"Roga","start":"13:40","end":"15:04","startHours":13.661465260663357,"endHours":15.059951653078542,"quality":"inauspicious"},{"name":"Udveg","start":"15:04","end":"16:28","startHours":15.059951653078542,"endHours":16.458438045493725,"quality":"inauspicious"},{"name":"Chala","start":"16:28","end":"17:51","startHours":16.458438045493725,"endHours":17.85692443790891,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:51","end":"19:28","startHours":17.85692443790891,"endHours":19.458438045493725,"quality":"inauspicious"},{"name":"Udveg","start":"19:28","end":"21:04","startHours":19.458438045493725,"endHours":21.059951653078542,"quality":"inauspicious"},{"name":"Chala","start":"21:04","end":"22:40","startHours":21.059951653078542,"endHours":22.661465260663356,"quality":"neutral"},{"name":"Labha","start":"22:40","end":"00:16","startHours":22.661465260663356,"endHours":24.262978868248176,"quality":"auspicious"},{"name":"Amṛta","start":"00:16","end":"01:52","startHours":24.262978868248176,"endHours":25.86449247583299,"quality":"auspicious"},{"name":"Kāla","start":"01:52","end":"03:28","startHours":25.86449247583299,"endHours":27.466006083417806,"quality":"inauspicious"},{"name":"Śubha","start":"03:28","end":"05:04","startHours":27.466006083417806,"endHours":29.067519691002623,"quality":"auspicious"},{"name":"Roga","start":"05:04","end":"06:40","startHours":29.067519691002623,"endHours":30.66903329858744,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:40","end":"07:40","startHours":6.66903329858744,"endHours":7.66903329858744,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:40","end":"08:40","startHours":7.66903329858744,"endHours":8.66903329858744,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:40","end":"09:40","startHours":8.66903329858744,"endHours":9.66903329858744,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:40","end":"10:40","startHours":9.66903329858744,"endHours":10.66903329858744,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:40","end":"11:40","startHours":10.66903329858744,"endHours":11.66903329858744,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:40","end":"12:40","startHours":11.66903329858744,"endHours":12.66903329858744,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:40","end":"13:40","startHours":12.66903329858744,"endHours":13.66903329858744,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:40","end":"14:40","startHours":13.66903329858744,"endHours":14.66903329858744,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:40","end":"15:40","startHours":14.66903329858744,"endHours":15.66903329858744,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:40","end":"16:40","startHours":15.66903329858744,"endHours":16.66903329858744,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:40","end":"17:40","startHours":16.66903329858744,"endHours":17.66903329858744,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:40","end":"18:40","startHours":17.66903329858744,"endHours":18.66903329858744,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:40","end":"19:40","startHours":18.66903329858744,"endHours":19.66903329858744,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:40","end":"20:40","startHours":19.66903329858744,"endHours":20.66903329858744,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:40","end":"21:40","startHours":20.66903329858744,"endHours":21.66903329858744,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:40","end":"22:40","startHours":21.66903329858744,"endHours":22.66903329858744,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:40","end":"23:40","startHours":22.66903329858744,"endHours":23.66903329858744,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:40","end":"00:40","startHours":23.66903329858744,"endHours":24.66903329858744,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:40","end":"01:40","startHours":24.66903329858744,"endHours":25.66903329858744,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:40","end":"02:40","startHours":25.66903329858744,"endHours":26.66903329858744,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:40","end":"03:40","startHours":26.66903329858744,"endHours":27.66903329858744,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:40","end":"04:40","startHours":27.66903329858744,"endHours":28.66903329858744,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:40","end":"05:40","startHours":28.66903329858744,"endHours":29.66903329858744,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:40","end":"06:40","startHours":29.66903329858744,"endHours":30.66903329858744,"planetary_lord":"Mars"}],"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":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"South-East","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-13.671457544568442,"eotMinutes":-14.594732094890398,"ayanamsa":24.148}},"calendars":{"vikram_samvat":2078,"vikram_samvatsara":"Ānanda","saka_samvat":1943,"saka_samvatsara":"Plava","bengali_samvat":1428,"malayalam_era":1197,"nanakshahi_year":552,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Pratipada · Vikram 2078 Ānanda · Śaka 1943 Plava"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2},{"id":"magha-gupta-navratri-start","name":"Māgha Gupta Navrātri Start","name_sanskrit":"माघ गुप्त नवरात्रि आरम्भ","tradition":"Shakta","associated_deity":"Devī (10 Mahāvidyās)","significance":"Hidden (gupta) Navrātri for advanced sādhanā of 10 Mahāvidyās.","vrata":true,"detection":{"tithi_number":1,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":3}],"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":[]},"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 12, 2021 CE · Ayodhyā · Vidhyamitra","description":"February 12, 2021 CE for Ayodhyā: Śukla Pratipada, sūryodaya 06:40, sūryāsta 17:51.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2021-02-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2021-02-12","sa":"https://sa.vidhyamitra.com/city/ayodhya/2021-02-12","hi":"https://hi.vidhyamitra.com/city/ayodhya/2021-02-12","x-default":"https://vidhyamitra.com/city/ayodhya/2021-02-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T00:49:30.733Z","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":"2026-05-15T00:49:30.733Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T00:49:30.733Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}