{"id":"vidhyamitra:city-day:ayodhya:2102-02-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2102-02-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2102-02-21","date_display":"February 21, 2102 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":2102,"month":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488850.770833,"kali_year":5203,"ahargana":1900385.2708,"sun":{"sidereal_longitude":306.5718,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":351.6599,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":45.0882,"elapsed_within_tithi_degrees":9.0882},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":351.6599,"elapsed_within_degrees":4.9933},"yoga":{"number":23,"name":"Śubha","sum_longitude":298.2317},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2102,"month":2,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488850.770833,"ahargana":1900385.2708,"kali_year":5203,"ayanamsa_lahiri":25.2798,"grahas":{"sun":{"sidereal_longitude":306.691156,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":351.987456,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false,"latitude":4.0164},"mars":{"sidereal_longitude":51.372055999999986,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":287.561956,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":234.91135599999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":258.51775599999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":203.94625599999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":288.4431,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":108.4431,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":2102,"month":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488850.770833,"kali_year":5203,"ahargana":1900385.2708,"sun":{"sidereal_longitude":306.5718,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":351.6599,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":45.0882,"elapsed_within_tithi_degrees":9.0882},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":351.6599,"elapsed_within_degrees":4.9933},"yoga":{"number":23,"name":"Śubha","sum_longitude":298.2317},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.016,"elongation":45.088},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.016,"opposition_distance":134.912}},"eclipse_window_40days":[{"offset_days":-18,"type":"lunar","occurs":true,"moon_latitude":0.307,"opposition_distance":2.772}]},"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":"06:34","sunsetLocal":"17:57","solarNoonLocal":"12:15","dayLengthHours":11.391864131270943,"dayLengthDisplay":"11 Hours 23 Mins 31 Secs","nightLengthDisplay":"12 Hours 36 Mins 29 Secs","moonriseLocal":"09:00","moonsetLocal":"21:33","rahuKala":{"name":"Rāhu Kāla","start":"15:06","end":"16:32","startHours":15.104196738505008,"endHours":16.528179754913875,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:24","end":"10:50","startHours":9.408264672869537,"endHours":10.832247689278404,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:15","end":"13:41","startHours":12.256230705687273,"endHours":13.680213722096141,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:13","end":"09:36","startHours":9.218400270681688,"endHours":9.598129075057386,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:02","end":"07:20","startHours":7.034959645521424,"endHours":7.3387426890219825,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:38","startHours":11.876501901311574,"endHours":12.635959510062971,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:02","end":"05:48","startHours":5.041383422549009,"endHours":5.800841031300405,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:37","end":"06:34","startHours":5.610976629112556,"endHours":6.560298640051801,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:55","startHours":14.154874727565762,"endHours":14.914332336317157,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:45","end":"18:09","startHours":17.752162771322745,"endHours":18.152162771322743,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:57","end":"18:26","startHours":17.952162771322744,"endHours":18.426823776792368,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:42","end":"19:27","startHours":17.702162771322744,"endHours":19.452162771322744,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:38","startHours":23.876501901311574,"endHours":24.63595951006297,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:34","end":"07:59","startHours":6.560298640051801,"endHours":7.984281656460669,"quality":"inauspicious"},{"name":"Udveg","start":"07:59","end":"09:24","startHours":7.984281656460669,"endHours":9.408264672869537,"quality":"inauspicious"},{"name":"Chala","start":"09:24","end":"10:50","startHours":9.408264672869537,"endHours":10.832247689278404,"quality":"neutral"},{"name":"Labha","start":"10:50","end":"12:15","startHours":10.832247689278404,"endHours":12.256230705687273,"quality":"auspicious"},{"name":"Amṛta","start":"12:15","end":"13:41","startHours":12.256230705687273,"endHours":13.680213722096141,"quality":"auspicious"},{"name":"Kāla","start":"13:41","end":"15:06","startHours":13.680213722096141,"endHours":15.104196738505008,"quality":"inauspicious"},{"name":"Śubha","start":"15:06","end":"16:32","startHours":15.104196738505008,"endHours":16.528179754913875,"quality":"auspicious"},{"name":"Roga","start":"16:32","end":"17:57","startHours":16.528179754913875,"endHours":17.952162771322744,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:57","end":"19:32","startHours":17.952162771322744,"endHours":19.528179754913875,"quality":"inauspicious"},{"name":"Śubha","start":"19:32","end":"21:06","startHours":19.528179754913875,"endHours":21.10419673850501,"quality":"auspicious"},{"name":"Roga","start":"21:06","end":"22:41","startHours":21.10419673850501,"endHours":22.68021372209614,"quality":"inauspicious"},{"name":"Udveg","start":"22:41","end":"00:15","startHours":22.68021372209614,"endHours":24.256230705687273,"quality":"inauspicious"},{"name":"Chala","start":"00:15","end":"01:50","startHours":24.256230705687273,"endHours":25.832247689278404,"quality":"neutral"},{"name":"Labha","start":"01:50","end":"03:24","startHours":25.832247689278404,"endHours":27.408264672869535,"quality":"auspicious"},{"name":"Amṛta","start":"03:24","end":"04:59","startHours":27.408264672869535,"endHours":28.98428165646067,"quality":"auspicious"},{"name":"Kāla","start":"04:59","end":"06:34","startHours":28.98428165646067,"endHours":30.5602986400518,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:34","end":"07:34","startHours":6.560298640051801,"endHours":7.560298640051801,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:34","end":"08:34","startHours":7.560298640051801,"endHours":8.560298640051801,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:34","end":"09:34","startHours":8.560298640051801,"endHours":9.560298640051801,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:34","end":"10:34","startHours":9.560298640051801,"endHours":10.560298640051801,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:34","end":"11:34","startHours":10.560298640051801,"endHours":11.560298640051801,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:34","end":"12:34","startHours":11.560298640051801,"endHours":12.560298640051801,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:34","end":"13:34","startHours":12.560298640051801,"endHours":13.560298640051801,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:34","end":"14:34","startHours":13.560298640051801,"endHours":14.560298640051801,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:34","end":"15:34","startHours":14.560298640051801,"endHours":15.560298640051801,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:34","end":"16:34","startHours":15.560298640051801,"endHours":16.5602986400518,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:34","end":"17:34","startHours":16.5602986400518,"endHours":17.5602986400518,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:34","end":"18:34","startHours":17.5602986400518,"endHours":18.5602986400518,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:34","end":"19:34","startHours":18.5602986400518,"endHours":19.5602986400518,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:34","end":"20:34","startHours":19.5602986400518,"endHours":20.5602986400518,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:34","end":"21:34","startHours":20.5602986400518,"endHours":21.5602986400518,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:34","end":"22:34","startHours":21.5602986400518,"endHours":22.5602986400518,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:34","end":"23:34","startHours":22.5602986400518,"endHours":23.5602986400518,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:34","end":"00:34","startHours":23.5602986400518,"endHours":24.5602986400518,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:34","end":"01:34","startHours":24.5602986400518,"endHours":25.5602986400518,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:34","end":"02:34","startHours":25.5602986400518,"endHours":26.5602986400518,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:34","end":"03:34","startHours":26.5602986400518,"endHours":27.5602986400518,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:34","end":"04:34","startHours":27.5602986400518,"endHours":28.5602986400518,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:34","end":"05:34","startHours":28.5602986400518,"endHours":29.5602986400518,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:34","end":"06:34","startHours":29.5602986400518,"endHours":30.5602986400518,"planetary_lord":"Saturn"}],"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":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-10.772047608971999,"eotMinutes":-14.189842341236304,"ayanamsa":25.2798}},"calendars":{"vikram_samvat":2159,"vikram_samvatsara":"Yuva","saka_samvat":2024,"saka_samvatsara":"Dundubhi","bengali_samvat":1509,"malayalam_era":1278,"nanakshahi_year":633,"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 Caturthī · Vikram 2159 Yuva · Śaka 2024 Dundubhi"},"festivals":[{"id":"angarika-chaturthi","name":"Aṅgāraka Caturthī (Tuesday Caturthī)","name_sanskrit":"अङ्गारक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa + Maṅgala","significance":"Tuesday-Caturthī (rare); supremely auspicious for Maṅgala-doṣa-nivāraṇa.","vrata":true,"detection":{"any_of":[{"tithi_number":4,"vara_name":"Maṅgalavāra (Tuesday)"},{"tithi_number":19,"vara_name":"Maṅgalavāra (Tuesday)"}]},"precedence":3},{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 21, 2102 CE · Ayodhyā · Vidhyamitra","description":"February 21, 2102 CE for Ayodhyā: Śukla Caturthī, sūryodaya 06:34, sūryāsta 17:57.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2102-02-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2102-02-21","sa":"https://sa.vidhyamitra.com/city/ayodhya/2102-02-21","hi":"https://hi.vidhyamitra.com/city/ayodhya/2102-02-21","x-default":"https://vidhyamitra.com/city/ayodhya/2102-02-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T00:06:21.077Z","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":"2026-05-31T00:06:21.077Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T00:06:21.077Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}