{"id":"vidhyamitra:city-day:ayodhya:2101-03-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2101-03-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2101-03-13","date_display":"March 13, 2101 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":2101,"month":3,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488505.770833,"kali_year":5202,"ahargana":1900040.2708,"sun":{"sidereal_longitude":326.9613,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":113.3496,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":146.3883,"elapsed_within_tithi_degrees":2.3883},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":113.3496,"elapsed_within_degrees":6.6829},"yoga":{"number":7,"name":"Sukarma","sum_longitude":80.3108},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2101,"month":3,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488505.770833,"ahargana":1900040.2708,"kali_year":5202,"ayanamsa_lahiri":25.2666,"grahas":{"sun":{"sidereal_longitude":327.022337,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":113.74383699999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false,"latitude":1.0398},"mars":{"sidereal_longitude":279.333537,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":308.34373700000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":207.11343699999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":328.235737,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":191.64123700000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":306.7228,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":126.7228,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":2101,"month":3,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488505.770833,"kali_year":5202,"ahargana":1900040.2708,"sun":{"sidereal_longitude":326.9613,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":113.3496,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":146.3883,"elapsed_within_tithi_degrees":2.3883},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":113.3496,"elapsed_within_degrees":6.6829},"yoga":{"number":7,"name":"Sukarma","sum_longitude":80.3108},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.04,"elongation":146.388},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.04,"opposition_distance":33.612}},"eclipse_window_40days":[{"offset_days":-13,"type":"solar","occurs":true,"moon_latitude":0.593,"elongation":1.085}]},"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":"06:14","sunsetLocal":"18:09","solarNoonLocal":"12:11","dayLengthHours":11.918378017315426,"dayLengthDisplay":"11 Hours 55 Mins 06 Secs","nightLengthDisplay":"12 Hours 04 Mins 54 Secs","moonriseLocal":"15:24","moonsetLocal":"04:32","rahuKala":{"name":"Rāhu Kāla","start":"16:40","end":"18:09","startHours":16.659423755306765,"endHours":18.149221007471194,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:11","end":"13:41","startHours":12.190031998813481,"endHours":13.67982925097791,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:10","end":"16:40","startHours":15.169626503142338,"endHours":16.659423755306765,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:01","end":"09:25","startHours":9.0117978608627,"endHours":9.40907712810655,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:44","end":"07:03","startHours":6.727442074210577,"endHours":7.045265488005655,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:48","end":"12:35","startHours":11.792752731569633,"endHours":12.587311266057329,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:39","end":"05:26","startHours":4.641725921180377,"endHours":5.436284455668073,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:14","end":"06:14","startHours":5.237644822046149,"endHours":6.230842990155768,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"14:58","startHours":14.17642833503272,"endHours":14.970986869520415,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.949221007471195,"endHours":18.349221007471193,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:39","startHours":18.149221007471194,"endHours":18.645820091526005,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.899221007471194,"endHours":19.649221007471194,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:48","end":"00:35","startHours":23.792752731569635,"endHours":24.587311266057327,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:14","end":"07:43","startHours":6.230842990155768,"endHours":7.720640242320196,"quality":"inauspicious"},{"name":"Chala","start":"07:43","end":"09:13","startHours":7.720640242320196,"endHours":9.210437494484625,"quality":"neutral"},{"name":"Labha","start":"09:13","end":"10:42","startHours":9.210437494484625,"endHours":10.700234746649052,"quality":"auspicious"},{"name":"Amṛta","start":"10:42","end":"12:11","startHours":10.700234746649052,"endHours":12.190031998813481,"quality":"auspicious"},{"name":"Kāla","start":"12:11","end":"13:41","startHours":12.190031998813481,"endHours":13.67982925097791,"quality":"inauspicious"},{"name":"Śubha","start":"13:41","end":"15:10","startHours":13.67982925097791,"endHours":15.169626503142338,"quality":"auspicious"},{"name":"Roga","start":"15:10","end":"16:40","startHours":15.169626503142338,"endHours":16.659423755306765,"quality":"inauspicious"},{"name":"Udveg","start":"16:40","end":"18:09","startHours":16.659423755306765,"endHours":18.149221007471194,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:09","end":"19:40","startHours":18.149221007471194,"endHours":19.659423755306765,"quality":"auspicious"},{"name":"Roga","start":"19:40","end":"21:10","startHours":19.659423755306765,"endHours":21.16962650314234,"quality":"inauspicious"},{"name":"Udveg","start":"21:10","end":"22:41","startHours":21.16962650314234,"endHours":22.67982925097791,"quality":"inauspicious"},{"name":"Chala","start":"22:41","end":"00:11","startHours":22.67982925097791,"endHours":24.19003199881348,"quality":"neutral"},{"name":"Labha","start":"00:11","end":"01:42","startHours":24.19003199881348,"endHours":25.700234746649052,"quality":"auspicious"},{"name":"Amṛta","start":"01:42","end":"03:13","startHours":25.700234746649052,"endHours":27.210437494484623,"quality":"auspicious"},{"name":"Kāla","start":"03:13","end":"04:43","startHours":27.210437494484623,"endHours":28.720640242320197,"quality":"inauspicious"},{"name":"Śubha","start":"04:43","end":"06:14","startHours":28.720640242320197,"endHours":30.230842990155768,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:14","end":"07:14","startHours":6.230842990155768,"endHours":7.230842990155768,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:14","end":"08:14","startHours":7.230842990155768,"endHours":8.230842990155768,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:14","end":"09:14","startHours":8.230842990155768,"endHours":9.230842990155768,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:14","end":"10:14","startHours":9.230842990155768,"endHours":10.230842990155768,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:14","end":"11:14","startHours":10.230842990155768,"endHours":11.230842990155768,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:14","end":"12:14","startHours":11.230842990155768,"endHours":12.230842990155768,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:14","end":"13:14","startHours":12.230842990155768,"endHours":13.230842990155768,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:14","end":"14:14","startHours":13.230842990155768,"endHours":14.230842990155768,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:14","end":"15:14","startHours":14.230842990155768,"endHours":15.230842990155768,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:14","end":"16:14","startHours":15.230842990155768,"endHours":16.230842990155768,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:14","end":"17:14","startHours":16.230842990155768,"endHours":17.230842990155768,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:14","end":"18:14","startHours":17.230842990155768,"endHours":18.230842990155768,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:14","end":"19:14","startHours":18.230842990155768,"endHours":19.230842990155768,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:14","end":"20:14","startHours":19.230842990155768,"endHours":20.230842990155768,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:14","end":"21:14","startHours":20.230842990155768,"endHours":21.230842990155768,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:14","end":"22:14","startHours":21.230842990155768,"endHours":22.230842990155768,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:14","end":"23:14","startHours":22.230842990155768,"endHours":23.230842990155768,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:14","end":"00:14","startHours":23.230842990155768,"endHours":24.230842990155768,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:14","end":"01:14","startHours":24.230842990155768,"endHours":25.230842990155768,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:14","end":"02:14","startHours":25.230842990155768,"endHours":26.230842990155768,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:14","end":"03:14","startHours":26.230842990155768,"endHours":27.230842990155768,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:14","end":"04:14","startHours":27.230842990155768,"endHours":28.230842990155768,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:14","end":"05:14","startHours":28.230842990155768,"endHours":29.230842990155768,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:14","end":"06:14","startHours":29.230842990155768,"endHours":30.230842990155768,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-3.0591432702004573,"eotMinutes":-10.217919928808794,"ayanamsa":25.2666}},"calendars":{"vikram_samvat":2158,"vikram_samvatsara":"Bhāva","saka_samvat":2023,"saka_samvatsara":"Durmati","bengali_samvat":1508,"malayalam_era":1277,"nanakshahi_year":632,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Trayodaśī · Vikram 2158 Bhāva · Śaka 2023 Durmati"},"festivals":[{"id":"kumbha-sankranti","name":"Kumbha Saṅkrānti","name_sanskrit":"कुम्भ सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aquarius; Kumbha-māsa begins.","vrata":false,"detection":{"sun_rashi":"Kumbha"},"precedence":5},{"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":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 March 13, 2101 CE · Ayodhyā · Vidhyamitra","description":"March 13, 2101 CE for Ayodhyā: Śukla Trayodaśī, sūryodaya 06:14, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2101-03-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2101-03-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/2101-03-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/2101-03-13","x-default":"https://vidhyamitra.com/city/ayodhya/2101-03-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T12:29:09.822Z","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":"2026-05-17T12:29:09.822Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T12:29:09.822Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}