{"id":"vidhyamitra:city-day:ayodhya:2099-10-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2099-10-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2099-10-21","date_display":"October 21, 2099 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":2099,"month":10,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2487997.770833,"kali_year":5201,"ahargana":1899532.2708,"sun":{"sidereal_longitude":181.7568,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":270.0299,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":88.2731,"elapsed_within_tithi_degrees":4.2731},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":270.0299,"elapsed_within_degrees":3.3632},"yoga":{"number":7,"name":"Sukarma","sum_longitude":91.7867},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2099,"month":10,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2487997.770833,"ahargana":1899532.2708,"kali_year":5201,"ayanamsa_lahiri":25.2472,"grahas":{"sun":{"sidereal_longitude":182.722446,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":273.494646,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false,"latitude":-4.0302},"mars":{"sidereal_longitude":357.673846,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":191.076146,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":162.30694600000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"venus":{"sidereal_longitude":205.24564600000008,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":172.13444600000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":333.6391,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":153.6391,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":2099,"month":10,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2487997.770833,"kali_year":5201,"ahargana":1899532.2708,"sun":{"sidereal_longitude":181.7568,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":270.0299,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":88.2731,"elapsed_within_tithi_degrees":4.2731},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":270.0299,"elapsed_within_degrees":3.3632},"yoga":{"number":7,"name":"Sukarma","sum_longitude":91.7867},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.03,"elongation":88.273},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.03,"opposition_distance":91.727}},"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":"06:04","sunsetLocal":"17:27","solarNoonLocal":"11:45","dayLengthHours":11.393341530493263,"dayLengthDisplay":"11 Hours 23 Mins 36 Secs","nightLengthDisplay":"12 Hours 36 Mins 24 Secs","moonriseLocal":"12:29","moonsetLocal":"23:08","rahuKala":{"name":"Rāhu Kāla","start":"11:45","end":"13:11","startHours":11.75590965722159,"endHours":13.180077348533246,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:29","end":"08:54","startHours":7.483406583286616,"endHours":8.907574274598273,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:20","end":"11:45","startHours":10.33174196590993,"endHours":11.75590965722159,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:43","end":"09:06","startHours":8.717685249090053,"endHours":9.097463300106494,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:32","end":"06:50","startHours":6.53396145574551,"endHours":6.837783896558664,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:23","end":"12:08","startHours":11.376131606205146,"endHours":12.13568770823803,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:32","end":"05:18","startHours":4.540126687909189,"endHours":5.299682789942073,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:04","startHours":5.109793764433852,"endHours":6.059238891974958,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:39","end":"14:25","startHours":13.6547999123038,"endHours":14.414356014336683,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:15","end":"17:39","startHours":17.25258042246822,"endHours":17.65258042246822,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:27","end":"17:56","startHours":17.45258042246822,"endHours":17.92730298623877,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:12","end":"18:57","startHours":17.20258042246822,"endHours":18.95258042246822,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:23","end":"00:08","startHours":23.376131606205146,"endHours":24.135687708238027,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:04","end":"07:29","startHours":6.059238891974958,"endHours":7.483406583286616,"quality":"auspicious"},{"name":"Amṛta","start":"07:29","end":"08:54","startHours":7.483406583286616,"endHours":8.907574274598273,"quality":"auspicious"},{"name":"Kāla","start":"08:54","end":"10:20","startHours":8.907574274598273,"endHours":10.33174196590993,"quality":"inauspicious"},{"name":"Śubha","start":"10:20","end":"11:45","startHours":10.33174196590993,"endHours":11.75590965722159,"quality":"auspicious"},{"name":"Roga","start":"11:45","end":"13:11","startHours":11.75590965722159,"endHours":13.180077348533246,"quality":"inauspicious"},{"name":"Udveg","start":"13:11","end":"14:36","startHours":13.180077348533246,"endHours":14.604245039844905,"quality":"inauspicious"},{"name":"Chala","start":"14:36","end":"16:02","startHours":14.604245039844905,"endHours":16.028412731156564,"quality":"neutral"},{"name":"Labha","start":"16:02","end":"17:27","startHours":16.028412731156564,"endHours":17.45258042246822,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:27","end":"19:02","startHours":17.45258042246822,"endHours":19.02841273115656,"quality":"inauspicious"},{"name":"Chala","start":"19:02","end":"20:36","startHours":19.02841273115656,"endHours":20.604245039844905,"quality":"neutral"},{"name":"Labha","start":"20:36","end":"22:11","startHours":20.604245039844905,"endHours":22.180077348533246,"quality":"auspicious"},{"name":"Amṛta","start":"22:11","end":"23:45","startHours":22.180077348533246,"endHours":23.755909657221586,"quality":"auspicious"},{"name":"Kāla","start":"23:45","end":"01:20","startHours":23.755909657221586,"endHours":25.33174196590993,"quality":"inauspicious"},{"name":"Śubha","start":"01:20","end":"02:54","startHours":25.33174196590993,"endHours":26.90757427459827,"quality":"auspicious"},{"name":"Roga","start":"02:54","end":"04:29","startHours":26.90757427459827,"endHours":28.483406583286616,"quality":"inauspicious"},{"name":"Udveg","start":"04:29","end":"06:04","startHours":28.483406583286616,"endHours":30.059238891974957,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:04","end":"07:04","startHours":6.059238891974958,"endHours":7.059238891974958,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:04","end":"08:04","startHours":7.059238891974958,"endHours":8.059238891974957,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:04","end":"09:04","startHours":8.059238891974957,"endHours":9.059238891974957,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:04","end":"10:04","startHours":9.059238891974957,"endHours":10.059238891974957,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:04","end":"11:04","startHours":10.059238891974957,"endHours":11.059238891974957,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:04","end":"12:04","startHours":11.059238891974957,"endHours":12.059238891974957,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:04","end":"13:04","startHours":12.059238891974957,"endHours":13.059238891974957,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:04","end":"14:04","startHours":13.059238891974957,"endHours":14.059238891974957,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:04","end":"15:04","startHours":14.059238891974957,"endHours":15.059238891974957,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:04","end":"16:04","startHours":15.059238891974957,"endHours":16.059238891974957,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:04","end":"17:04","startHours":16.059238891974957,"endHours":17.059238891974957,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:04","end":"18:04","startHours":17.059238891974957,"endHours":18.059238891974957,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:04","end":"19:04","startHours":18.059238891974957,"endHours":19.059238891974957,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:04","end":"20:04","startHours":19.059238891974957,"endHours":20.059238891974957,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:04","end":"21:04","startHours":20.059238891974957,"endHours":21.059238891974957,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:04","end":"22:04","startHours":21.059238891974957,"endHours":22.059238891974957,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:04","end":"23:04","startHours":22.059238891974957,"endHours":23.059238891974957,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:04","end":"00:04","startHours":23.059238891974957,"endHours":24.059238891974957,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:04","end":"01:04","startHours":24.059238891974957,"endHours":25.059238891974957,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:04","end":"02:04","startHours":25.059238891974957,"endHours":26.059238891974957,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:04","end":"03:04","startHours":26.059238891974957,"endHours":27.059238891974957,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:04","end":"04:04","startHours":27.059238891974957,"endHours":28.059238891974957,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:04","end":"05:04","startHours":28.059238891974957,"endHours":29.059238891974957,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:04","end":"06:04","startHours":29.059238891974957,"endHours":30.059238891974957,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"South-West","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-10.750814859472719,"eotMinutes":15.829420566704727,"ayanamsa":25.2472}},"calendars":{"vikram_samvat":2156,"vikram_samvatsara":"Aṅgirasa","saka_samvat":2021,"saka_samvatsara":"Siddhārthī","bengali_samvat":1506,"malayalam_era":1275,"nanakshahi_year":630,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Aṣṭamī · Vikram 2156 Aṅgirasa · Śaka 2021 Siddhārthī"},"festivals":[{"id":"durga-ashtami","name":"Mahā-Aṣṭamī (Durgā-Aṣṭamī)","name_sanskrit":"महाष्टमी","tradition":"Shakta","associated_deity":"Devī Durgā","significance":"8th day of Śāradīya Navrātri; Mahiṣāsura-mardinī kṣaṇa.","vrata":true,"detection":{"tithi_number":8,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":1}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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}]},"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 October 21, 2099 CE · Ayodhyā · Vidhyamitra","description":"October 21, 2099 CE for Ayodhyā: Śukla Aṣṭamī, sūryodaya 06:04, sūryāsta 17:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2099-10-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2099-10-21","sa":"https://sa.vidhyamitra.com/city/ayodhya/2099-10-21","hi":"https://hi.vidhyamitra.com/city/ayodhya/2099-10-21","x-default":"https://vidhyamitra.com/city/ayodhya/2099-10-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T00:00:43.336Z","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":"2026-06-01T00:00:43.336Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T00:00:43.336Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}