{"id":"vidhyamitra:city-day:phoenix:2131-10-19:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2131-10-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2131-10-19","date_display":"October 19, 2131 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":2131,"month":10,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499682.770833,"kali_year":5233,"ahargana":1911217.2708,"sun":{"sidereal_longitude":178.4932,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":155.0696,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":336.5764,"elapsed_within_tithi_degrees":0.5764},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":155.0696,"elapsed_within_degrees":8.4029},"yoga":{"number":26,"name":"Indra","sum_longitude":333.5627},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2131,"month":10,"day":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2499682.770833,"ahargana":1911217.2708,"kali_year":5233,"ayanamsa_lahiri":25.6941,"grahas":{"sun":{"sidereal_longitude":179.543494,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":156.355094,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false,"latitude":4.4389},"mars":{"sidereal_longitude":16.610694000000024,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":202.59729399999992,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":63.552693999999974,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":203.233794,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":198.77709400000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":74.5116,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":254.5116,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":2131,"month":10,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499682.770833,"kali_year":5233,"ahargana":1911217.2708,"sun":{"sidereal_longitude":178.4932,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":155.0696,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":336.5764,"elapsed_within_tithi_degrees":0.5764},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":155.0696,"elapsed_within_degrees":8.4029},"yoga":{"number":26,"name":"Indra","sum_longitude":333.5627},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.439,"elongation":23.424},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.439,"opposition_distance":156.576}},"eclipse_window_40days":[]},"city":{"slug":"phoenix","name":"Phoenix, USA","lat":33.4484,"lon":-112.074,"tz_offset_hours":-7,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"phoenix","name":"Phoenix, USA","lat":33.4484,"lon":-112.074,"tz_offset_hours":-7,"country":"US","tier":"diaspora"},"sunriseLocal":"06:35","sunsetLocal":"17:51","solarNoonLocal":"12:13","dayLengthHours":11.265550562561266,"dayLengthDisplay":"11 Hours 15 Mins 56 Secs","nightLengthDisplay":"12 Hours 44 Mins 04 Secs","moonriseLocal":"04:39","moonsetLocal":"16:41","rahuKala":{"name":"Rāhu Kāla","start":"10:48","end":"12:13","startHours":10.804202596818861,"endHours":12.212396417139018,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:02","end":"16:26","startHours":15.028784057779337,"endHours":16.436977878099494,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:59","end":"09:24","startHours":7.9878149561785445,"endHours":9.396008776498704,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:12","end":"09:35","startHours":9.208249600456014,"endHours":9.58376795254139,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:03","end":"07:21","startHours":7.049019075965106,"endHours":7.349433757633406,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:35","startHours":11.836878065053643,"endHours":12.587914769224394,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:05","end":"05:50","startHours":5.077547727516884,"endHours":5.828584431687635,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:38","end":"06:35","startHours":5.640825255644947,"endHours":6.579621135858386,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:05","end":"14:50","startHours":14.089988177565896,"endHours":14.841024881736647,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:39","end":"18:03","startHours":17.645171698419652,"endHours":18.04517169841965,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:51","end":"18:19","startHours":17.84517169841965,"endHours":18.314569638526372,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:36","end":"19:21","startHours":17.59517169841965,"endHours":19.34517169841965,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:35","startHours":23.836878065053643,"endHours":24.587914769224394,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:35","end":"07:59","startHours":6.579621135858386,"endHours":7.9878149561785445,"quality":"neutral"},{"name":"Labha","start":"07:59","end":"09:24","startHours":7.9878149561785445,"endHours":9.396008776498704,"quality":"auspicious"},{"name":"Amṛta","start":"09:24","end":"10:48","startHours":9.396008776498704,"endHours":10.804202596818861,"quality":"auspicious"},{"name":"Kāla","start":"10:48","end":"12:13","startHours":10.804202596818861,"endHours":12.212396417139018,"quality":"inauspicious"},{"name":"Śubha","start":"12:13","end":"13:37","startHours":12.212396417139018,"endHours":13.620590237459178,"quality":"auspicious"},{"name":"Roga","start":"13:37","end":"15:02","startHours":13.620590237459178,"endHours":15.028784057779337,"quality":"inauspicious"},{"name":"Udveg","start":"15:02","end":"16:26","startHours":15.028784057779337,"endHours":16.436977878099494,"quality":"inauspicious"},{"name":"Chala","start":"16:26","end":"17:51","startHours":16.436977878099494,"endHours":17.84517169841965,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:51","end":"19:26","startHours":17.84517169841965,"endHours":19.436977878099494,"quality":"inauspicious"},{"name":"Udveg","start":"19:26","end":"21:02","startHours":19.436977878099494,"endHours":21.028784057779333,"quality":"inauspicious"},{"name":"Chala","start":"21:02","end":"22:37","startHours":21.028784057779333,"endHours":22.620590237459176,"quality":"neutral"},{"name":"Labha","start":"22:37","end":"00:13","startHours":22.620590237459176,"endHours":24.21239641713902,"quality":"auspicious"},{"name":"Amṛta","start":"00:13","end":"01:48","startHours":24.21239641713902,"endHours":25.80420259681886,"quality":"auspicious"},{"name":"Kāla","start":"01:48","end":"03:24","startHours":25.80420259681886,"endHours":27.396008776498704,"quality":"inauspicious"},{"name":"Śubha","start":"03:24","end":"04:59","startHours":27.396008776498704,"endHours":28.987814956178543,"quality":"auspicious"},{"name":"Roga","start":"04:59","end":"06:35","startHours":28.987814956178543,"endHours":30.579621135858385,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:35","end":"07:35","startHours":6.579621135858386,"endHours":7.579621135858386,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:35","end":"08:35","startHours":7.579621135858386,"endHours":8.579621135858385,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:35","end":"09:35","startHours":8.579621135858385,"endHours":9.579621135858385,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:35","end":"10:35","startHours":9.579621135858385,"endHours":10.579621135858385,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:35","end":"11:35","startHours":10.579621135858385,"endHours":11.579621135858385,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:35","end":"12:35","startHours":11.579621135858385,"endHours":12.579621135858385,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:35","end":"13:35","startHours":12.579621135858385,"endHours":13.579621135858385,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:35","end":"14:35","startHours":13.579621135858385,"endHours":14.579621135858385,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:35","end":"15:35","startHours":14.579621135858385,"endHours":15.579621135858385,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:35","end":"16:35","startHours":15.579621135858385,"endHours":16.579621135858385,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:35","end":"17:35","startHours":16.579621135858385,"endHours":17.579621135858385,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:35","end":"18:35","startHours":17.579621135858385,"endHours":18.579621135858385,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:35","end":"19:35","startHours":18.579621135858385,"endHours":19.579621135858385,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:35","end":"20:35","startHours":19.579621135858385,"endHours":20.579621135858385,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:35","end":"21:35","startHours":20.579621135858385,"endHours":21.579621135858385,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:35","end":"22:35","startHours":21.579621135858385,"endHours":22.579621135858385,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:35","end":"23:35","startHours":22.579621135858385,"endHours":23.579621135858385,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:35","end":"00:35","startHours":23.579621135858385,"endHours":24.579621135858385,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:35","end":"01:35","startHours":24.579621135858385,"endHours":25.579621135858385,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:35","end":"02:35","startHours":25.579621135858385,"endHours":26.579621135858385,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:35","end":"03:35","startHours":26.579621135858385,"endHours":27.579621135858385,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:35","end":"04:35","startHours":27.579621135858385,"endHours":28.579621135858385,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:35","end":"05:35","startHours":28.579621135858385,"endHours":29.579621135858385,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:35","end":"06:35","startHours":29.579621135858385,"endHours":30.579621135858385,"planetary_lord":"Mars"}],"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","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"South-East","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-9.763536306560962,"eotMinutes":15.552214971658897,"ayanamsa":25.6941}},"calendars":{"vikram_samvat":2188,"vikram_samvatsara":"Krodhi","saka_samvat":2053,"saka_samvatsara":"Khara","bengali_samvat":1538,"malayalam_era":1307,"nanakshahi_year":662,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Caturdaśī · Vikram 2188 Krodhi · Śaka 2053 Khara"},"festivals":[{"id":"naraka-chaturdashi","name":"Naraka Caturdaśī (Choṭī Diwālī)","name_sanskrit":"नरक चतुर्दशी","tradition":"Vaishnava","associated_deity":"Krishna (Narakāsura-vadha)","significance":"Krishna slew Narakāsura, freeing 16,000 captive princesses. Day 2 of Diwali.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa","lunar_month":"Kārtika"},"precedence":2,"sources":["Bhāgavata 10.59"]},{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"phoenix"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga October 19, 2131 CE · Phoenix, USA · Vidhyamitra","description":"October 19, 2131 CE for Phoenix, USA: Kṛṣṇa Caturdaśī, sūryodaya 06:35, sūryāsta 17:51.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2131-10-19","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2131-10-19","sa":"https://sa.vidhyamitra.com/city/phoenix/2131-10-19","hi":"https://hi.vidhyamitra.com/city/phoenix/2131-10-19","x-default":"https://vidhyamitra.com/city/phoenix/2131-10-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T13:21:57.961Z","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":"2026-06-02T13:21:57.961Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T13:21:57.961Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}