{"id":"vidhyamitra:city-day:ayodhya:1810-01-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1810-01-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1810-01-13","date_display":"January 13, 1810 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":1810,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2382160.770833,"kali_year":4911,"ahargana":1793695.2708,"sun":{"sidereal_longitude":271.4103,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":4.3259,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":92.9157,"elapsed_within_tithi_degrees":8.9157},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":4.3259,"elapsed_within_degrees":4.3259},"yoga":{"number":21,"name":"Siddha","sum_longitude":275.7362},"karana":{"half_tithi_index":15,"name":"Bava"},"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":1810,"month":1,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2382160.770833,"ahargana":1793695.2708,"kali_year":4911,"ayanamsa_lahiri":21.1993,"grahas":{"sun":{"sidereal_longitude":271.0754979999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":6.884298000000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false,"latitude":-0.23},"mars":{"sidereal_longitude":312.46999800000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":282.22169800000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":358.295398,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":258.8236979999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":232.02369799999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":181.3927,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":1.3927,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":1810,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2382160.770833,"kali_year":4911,"ahargana":1793695.2708,"sun":{"sidereal_longitude":271.4103,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":4.3259,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":92.9157,"elapsed_within_tithi_degrees":8.9157},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":4.3259,"elapsed_within_degrees":4.3259},"yoga":{"number":21,"name":"Siddha","sum_longitude":275.7362},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.23,"elongation":92.916},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.23,"opposition_distance":87.084}},"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":"06:52","sunsetLocal":"17:28","solarNoonLocal":"12:10","dayLengthHours":10.59851635459242,"dayLengthDisplay":"10 Hours 35 Mins 55 Secs","nightLengthDisplay":"13 Hours 24 Mins 05 Secs","moonriseLocal":"12:08","moonsetLocal":"00:58","rahuKala":{"name":"Rāhu Kāla","start":"09:31","end":"10:50","startHours":9.514036436208123,"endHours":10.838850980532175,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:29","end":"14:49","startHours":13.48848006918028,"endHours":14.813294613504333,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:52","end":"08:11","startHours":6.864407347560018,"endHours":8.18922189188407,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:20","end":"09:41","startHours":9.337394496964915,"endHours":9.69067837545133,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:18","end":"07:35","startHours":7.3060121956680355,"endHours":7.588639298457167,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:31","startHours":11.810381646369814,"endHours":12.516949403342641,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:27","end":"06:09","startHours":5.451271833614362,"endHours":6.15783959058719,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:59","end":"06:52","startHours":5.981197651343983,"endHours":6.864407347560018,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:38","startHours":13.930084917288298,"endHours":14.636652674261125,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:16","end":"17:40","startHours":17.262923702152438,"endHours":17.662923702152437,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:28","end":"17:54","startHours":17.462923702152437,"endHours":17.904528550260455,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:13","end":"18:58","startHours":17.212923702152437,"endHours":18.962923702152437,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:31","startHours":23.810381646369812,"endHours":24.516949403342643,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:52","end":"08:11","startHours":6.864407347560018,"endHours":8.18922189188407,"quality":"inauspicious"},{"name":"Śubha","start":"08:11","end":"09:31","startHours":8.18922189188407,"endHours":9.514036436208123,"quality":"auspicious"},{"name":"Roga","start":"09:31","end":"10:50","startHours":9.514036436208123,"endHours":10.838850980532175,"quality":"inauspicious"},{"name":"Udveg","start":"10:50","end":"12:10","startHours":10.838850980532175,"endHours":12.163665524856228,"quality":"inauspicious"},{"name":"Chala","start":"12:10","end":"13:29","startHours":12.163665524856228,"endHours":13.48848006918028,"quality":"neutral"},{"name":"Labha","start":"13:29","end":"14:49","startHours":13.48848006918028,"endHours":14.813294613504333,"quality":"auspicious"},{"name":"Amṛta","start":"14:49","end":"16:08","startHours":14.813294613504333,"endHours":16.138109157828385,"quality":"auspicious"},{"name":"Kāla","start":"16:08","end":"17:28","startHours":16.138109157828385,"endHours":17.462923702152437,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:28","end":"19:08","startHours":17.462923702152437,"endHours":19.138109157828385,"quality":"auspicious"},{"name":"Amṛta","start":"19:08","end":"20:49","startHours":19.138109157828385,"endHours":20.813294613504333,"quality":"auspicious"},{"name":"Kāla","start":"20:49","end":"22:29","startHours":20.813294613504333,"endHours":22.48848006918028,"quality":"inauspicious"},{"name":"Śubha","start":"22:29","end":"00:10","startHours":22.48848006918028,"endHours":24.163665524856228,"quality":"auspicious"},{"name":"Roga","start":"00:10","end":"01:50","startHours":24.163665524856228,"endHours":25.838850980532175,"quality":"inauspicious"},{"name":"Udveg","start":"01:50","end":"03:31","startHours":25.838850980532175,"endHours":27.514036436208123,"quality":"inauspicious"},{"name":"Chala","start":"03:31","end":"05:11","startHours":27.514036436208123,"endHours":29.18922189188407,"quality":"neutral"},{"name":"Labha","start":"05:11","end":"06:52","startHours":29.18922189188407,"endHours":30.864407347560018,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:52","end":"07:52","startHours":6.864407347560018,"endHours":7.864407347560018,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:52","end":"08:52","startHours":7.864407347560018,"endHours":8.864407347560018,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:52","end":"09:52","startHours":8.864407347560018,"endHours":9.864407347560018,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:52","end":"10:52","startHours":9.864407347560018,"endHours":10.864407347560018,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:52","end":"11:52","startHours":10.864407347560018,"endHours":11.864407347560018,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:52","end":"12:52","startHours":11.864407347560018,"endHours":12.864407347560018,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:52","end":"13:52","startHours":12.864407347560018,"endHours":13.864407347560018,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:52","end":"14:52","startHours":13.864407347560018,"endHours":14.864407347560018,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:52","end":"15:52","startHours":14.864407347560018,"endHours":15.864407347560018,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:52","end":"16:52","startHours":15.864407347560018,"endHours":16.864407347560018,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:52","end":"17:52","startHours":16.864407347560018,"endHours":17.864407347560018,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:52","end":"18:52","startHours":17.864407347560018,"endHours":18.864407347560018,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:52","end":"19:52","startHours":18.864407347560018,"endHours":19.864407347560018,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:52","end":"20:52","startHours":19.864407347560018,"endHours":20.864407347560018,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:52","end":"21:52","startHours":20.864407347560018,"endHours":21.864407347560018,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:52","end":"22:52","startHours":21.864407347560018,"endHours":22.864407347560018,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:52","end":"23:52","startHours":22.864407347560018,"endHours":23.864407347560018,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:52","end":"00:52","startHours":23.864407347560018,"endHours":24.864407347560018,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:52","end":"01:52","startHours":24.864407347560018,"endHours":25.864407347560018,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:52","end":"02:52","startHours":25.864407347560018,"endHours":26.864407347560018,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:52","end":"03:52","startHours":26.864407347560018,"endHours":27.864407347560018,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:52","end":"04:52","startHours":27.864407347560018,"endHours":28.864407347560018,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:52","end":"05:52","startHours":28.864407347560018,"endHours":29.864407347560018,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:52","end":"06:52","startHours":29.864407347560018,"endHours":30.864407347560018,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-21.59554682961315,"eotMinutes":-8.635931491373626,"ayanamsa":21.1993}},"calendars":{"vikram_samvat":1867,"vikram_samvatsara":"Subhānu","saka_samvat":1732,"saka_samvatsara":"Pramoda","bengali_samvat":1217,"malayalam_era":986,"nanakshahi_year":341,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Aṣṭamī · Vikram 1867 Subhānu · Śaka 1732 Pramoda"},"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":"bhishma-ashtami","name":"Bhīṣmāṣṭamī","name_sanskrit":"भीष्माष्टमी","tradition":"Pan-Hindu","associated_deity":"Bhīṣma Pitāmaha","significance":"Bhīṣma's mahaprasthāna anniversary (Māgha Śukla 8); Bhīṣma-tarpaṇa.","vrata":true,"detection":{"tithi_number":8,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2,"sources":["Mahābhārata, Anuśāsana Parva"]},{"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}],"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":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","relevance":0.5},{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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 January 13, 1810 CE · Ayodhyā · Vidhyamitra","description":"January 13, 1810 CE for Ayodhyā: Śukla Aṣṭamī, sūryodaya 06:52, sūryāsta 17:28.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1810-01-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1810-01-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/1810-01-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/1810-01-13","x-default":"https://vidhyamitra.com/city/ayodhya/1810-01-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-22T05:05:05.534Z","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":"2026-05-22T05:05:05.534Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-22T05:05:05.534Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}