{"id":"vidhyamitra:city-day:ayodhya:1812-02-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1812-02-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1812-02-13","date_display":"February 13, 1812 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":1812,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2382921.770833,"kali_year":4913,"ahargana":1794456.2708,"sun":{"sidereal_longitude":302.5561,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":303.9038,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":1.3477,"elapsed_within_tithi_degrees":1.3477},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":303.9038,"elapsed_within_degrees":10.5704},"yoga":{"number":19,"name":"Parigha","sum_longitude":246.4599},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1812,"month":2,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2382921.770833,"ahargana":1794456.2708,"kali_year":4913,"ayanamsa_lahiri":21.2284,"grahas":{"sun":{"sidereal_longitude":302.02222200000006,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":304.720022,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false,"latitude":1.327},"mars":{"sidereal_longitude":352.812922,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":279.34342200000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":67.12962199999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":334.088122,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":255.47342200000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":141.0712,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":321.0712,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":1812,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2382921.770833,"kali_year":4913,"ahargana":1794456.2708,"sun":{"sidereal_longitude":302.5561,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":303.9038,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":1.3477,"elapsed_within_tithi_degrees":1.3477},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":303.9038,"elapsed_within_degrees":10.5704},"yoga":{"number":19,"name":"Parigha","sum_longitude":246.4599},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":true,"moon_latitude":1.327,"elongation":1.348},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.327,"opposition_distance":178.652}},"eclipse_window_40days":[{"offset_days":0,"type":"solar","occurs":true,"moon_latitude":1.327,"elongation":1.348},{"offset_days":14,"type":"lunar","occurs":true,"moon_latitude":-0.388,"opposition_distance":1.327}]},"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":11.181105007780069,"dayLengthDisplay":"11 Hours 10 Mins 52 Secs","nightLengthDisplay":"12 Hours 49 Mins 08 Secs","moonriseLocal":"06:50","moonsetLocal":"18:03","rahuKala":{"name":"Rāhu Kāla","start":"13:40","end":"15:04","startHours":13.660696880316213,"endHours":15.058335006288722,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:40","end":"08:04","startHours":6.67250625045367,"endHours":8.070144376426178,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:28","end":"10:52","startHours":9.467782502398688,"endHours":10.865420628371195,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:17","end":"09:39","startHours":9.281430752269019,"endHours":9.654134252528355,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:08","end":"07:26","startHours":7.138385625777839,"endHours":7.436548425985308,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:38","startHours":11.890355254084367,"endHours":12.635762254603039,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:11","end":"05:56","startHours":5.1816922494163276,"endHours":5.927099249934998,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:44","end":"06:40","startHours":5.74074749980533,"endHours":6.67250625045367,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:52","startHours":14.126576255640384,"endHours":14.871983256159055,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:39","end":"18:03","startHours":17.653611258233738,"endHours":18.053611258233737,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:51","end":"18:19","startHours":17.853611258233737,"endHours":18.31949063355791,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:36","end":"19:21","startHours":17.603611258233737,"endHours":19.353611258233737,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:38","startHours":23.89035525408437,"endHours":24.635762254603037,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:40","end":"08:04","startHours":6.67250625045367,"endHours":8.070144376426178,"quality":"auspicious"},{"name":"Roga","start":"08:04","end":"09:28","startHours":8.070144376426178,"endHours":9.467782502398688,"quality":"inauspicious"},{"name":"Udveg","start":"09:28","end":"10:52","startHours":9.467782502398688,"endHours":10.865420628371195,"quality":"inauspicious"},{"name":"Chala","start":"10:52","end":"12:16","startHours":10.865420628371195,"endHours":12.263058754343703,"quality":"neutral"},{"name":"Labha","start":"12:16","end":"13:40","startHours":12.263058754343703,"endHours":13.660696880316213,"quality":"auspicious"},{"name":"Amṛta","start":"13:40","end":"15:04","startHours":13.660696880316213,"endHours":15.058335006288722,"quality":"auspicious"},{"name":"Kāla","start":"15:04","end":"16:27","startHours":15.058335006288722,"endHours":16.455973132261228,"quality":"inauspicious"},{"name":"Śubha","start":"16:27","end":"17:51","startHours":16.455973132261228,"endHours":17.853611258233737,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:51","end":"19:27","startHours":17.853611258233737,"endHours":19.455973132261228,"quality":"auspicious"},{"name":"Kāla","start":"19:27","end":"21:04","startHours":19.455973132261228,"endHours":21.058335006288722,"quality":"inauspicious"},{"name":"Śubha","start":"21:04","end":"22:40","startHours":21.058335006288722,"endHours":22.660696880316213,"quality":"auspicious"},{"name":"Roga","start":"22:40","end":"00:16","startHours":22.660696880316213,"endHours":24.263058754343703,"quality":"inauspicious"},{"name":"Udveg","start":"00:16","end":"01:52","startHours":24.263058754343703,"endHours":25.865420628371194,"quality":"inauspicious"},{"name":"Chala","start":"01:52","end":"03:28","startHours":25.865420628371194,"endHours":27.467782502398684,"quality":"neutral"},{"name":"Labha","start":"03:28","end":"05:04","startHours":27.467782502398684,"endHours":29.070144376426178,"quality":"auspicious"},{"name":"Amṛta","start":"05:04","end":"06:40","startHours":29.070144376426178,"endHours":30.67250625045367,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:40","end":"07:40","startHours":6.67250625045367,"endHours":7.67250625045367,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:40","end":"08:40","startHours":7.67250625045367,"endHours":8.672506250453669,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:40","end":"09:40","startHours":8.672506250453669,"endHours":9.672506250453669,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:40","end":"10:40","startHours":9.672506250453669,"endHours":10.672506250453669,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:40","end":"11:40","startHours":10.672506250453669,"endHours":11.672506250453669,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:40","end":"12:40","startHours":11.672506250453669,"endHours":12.672506250453669,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:40","end":"13:40","startHours":12.672506250453669,"endHours":13.672506250453669,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:40","end":"14:40","startHours":13.672506250453669,"endHours":14.672506250453669,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:40","end":"15:40","startHours":14.672506250453669,"endHours":15.672506250453669,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:40","end":"16:40","startHours":15.672506250453669,"endHours":16.67250625045367,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:40","end":"17:40","startHours":16.67250625045367,"endHours":17.67250625045367,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:40","end":"18:40","startHours":17.67250625045367,"endHours":18.67250625045367,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:40","end":"19:40","startHours":18.67250625045367,"endHours":19.67250625045367,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:40","end":"20:40","startHours":19.67250625045367,"endHours":20.67250625045367,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:40","end":"21:40","startHours":20.67250625045367,"endHours":21.67250625045367,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:40","end":"22:40","startHours":21.67250625045367,"endHours":22.67250625045367,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:40","end":"23:40","startHours":22.67250625045367,"endHours":23.67250625045367,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:40","end":"00:40","startHours":23.67250625045367,"endHours":24.67250625045367,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:40","end":"01:40","startHours":24.67250625045367,"endHours":25.67250625045367,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:40","end":"02:40","startHours":25.67250625045367,"endHours":26.67250625045367,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:40","end":"03:40","startHours":26.67250625045367,"endHours":27.67250625045367,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:40","end":"04:40","startHours":27.67250625045367,"endHours":28.67250625045367,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:40","end":"05:40","startHours":28.67250625045367,"endHours":29.67250625045367,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:40","end":"06:40","startHours":29.67250625045367,"endHours":30.67250625045367,"planetary_lord":"Moon"}],"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":"South (Dakṣiṇa)","chandraVasa":"South","rahuVasa":"North-West","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":-13.766738759004102,"eotMinutes":-14.599525260622107,"ayanamsa":21.2284}},"calendars":{"vikram_samvat":1869,"vikram_samvatsara":"Pārthiva","saka_samvat":1734,"saka_samvatsara":"Aṅgirasa","bengali_samvat":1219,"malayalam_era":988,"nanakshahi_year":343,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Phālguna","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 Śukla Pratipada · Vikram 1869 Pārthiva · Śaka 1734 Aṅgirasa"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 13, 1812 CE · Ayodhyā · Vidhyamitra","description":"February 13, 1812 CE for Ayodhyā: Śukla Pratipada, sūryodaya 06:40, sūryāsta 17:51.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1812-02-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1812-02-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/1812-02-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/1812-02-13","x-default":"https://vidhyamitra.com/city/ayodhya/1812-02-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T20:27:55.753Z","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":"2026-05-31T20:27:55.753Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T20:27:55.753Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}