{"id":"vidhyamitra:city-day:phoenix:2019-10-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2019-10-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2019-10-13","date_display":"October 13, 2019 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":2019,"month":10,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458769.770833,"kali_year":5121,"ahargana":1870304.2708,"sun":{"sidereal_longitude":174.5045,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":345.0808,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":170.5762,"elapsed_within_tithi_degrees":2.5762},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4,"moon_longitude":345.0808,"elapsed_within_degrees":11.7474},"yoga":{"number":12,"name":"Dhruva","sum_longitude":159.5853},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"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":2019,"month":10,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458769.770833,"ahargana":1870304.2708,"kali_year":5121,"ayanamsa_lahiri":24.1293,"grahas":{"sun":{"sidereal_longitude":175.29067099999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":345.956471,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false,"latitude":-4.4645},"mars":{"sidereal_longitude":161.29277100000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":198.60607100000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":235.875671,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":191.01237100000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":260.218671,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":82.2792,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":262.2792,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":2019,"month":10,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458769.770833,"kali_year":5121,"ahargana":1870304.2708,"sun":{"sidereal_longitude":174.5045,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":345.0808,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":170.5762,"elapsed_within_tithi_degrees":2.5762},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4,"moon_longitude":345.0808,"elapsed_within_degrees":11.7474},"yoga":{"number":12,"name":"Dhruva","sum_longitude":159.5853},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.464,"elongation":170.576},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.464,"opposition_distance":9.424}},"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":"06:30","sunsetLocal":"17:58","solarNoonLocal":"12:14","dayLengthHours":11.460560523096243,"dayLengthDisplay":"11 Hours 27 Mins 38 Secs","nightLengthDisplay":"12 Hours 32 Mins 22 Secs","moonriseLocal":"17:23","moonsetLocal":"05:50","rahuKala":{"name":"Rāhu Kāla","start":"16:32","end":"17:58","startHours":16.528603042693163,"endHours":17.961173108080196,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:14","end":"13:40","startHours":12.230892846532075,"endHours":13.663462911919105,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:06","end":"16:32","startHours":15.096032977306136,"endHours":16.528603042693163,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:10","end":"09:33","startHours":9.17474337370641,"endHours":9.556762057809618,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:59","end":"07:17","startHours":6.9781359401129635,"endHours":7.28375088739553,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:37","startHours":11.848874162428867,"endHours":12.612911530635284,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:58","end":"05:44","startHours":4.972537848571121,"endHours":5.736575216777537,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:33","end":"06:30","startHours":5.545565874725932,"endHours":6.500612584983953,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:54","startHours":14.140986267048115,"endHours":14.905023635254532,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:46","end":"18:10","startHours":17.761173108080197,"endHours":18.161173108080195,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:58","end":"18:26","startHours":17.961173108080196,"endHours":18.438696463209205,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:43","end":"19:28","startHours":17.711173108080196,"endHours":19.461173108080196,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:37","startHours":23.848874162428867,"endHours":24.612911530635284,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:30","end":"07:56","startHours":6.500612584983953,"endHours":7.933182650370983,"quality":"inauspicious"},{"name":"Chala","start":"07:56","end":"09:22","startHours":7.933182650370983,"endHours":9.365752715758013,"quality":"neutral"},{"name":"Labha","start":"09:22","end":"10:48","startHours":9.365752715758013,"endHours":10.798322781145044,"quality":"auspicious"},{"name":"Amṛta","start":"10:48","end":"12:14","startHours":10.798322781145044,"endHours":12.230892846532075,"quality":"auspicious"},{"name":"Kāla","start":"12:14","end":"13:40","startHours":12.230892846532075,"endHours":13.663462911919105,"quality":"inauspicious"},{"name":"Śubha","start":"13:40","end":"15:06","startHours":13.663462911919105,"endHours":15.096032977306136,"quality":"auspicious"},{"name":"Roga","start":"15:06","end":"16:32","startHours":15.096032977306136,"endHours":16.528603042693163,"quality":"inauspicious"},{"name":"Udveg","start":"16:32","end":"17:58","startHours":16.528603042693163,"endHours":17.961173108080196,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:58","end":"19:32","startHours":17.961173108080196,"endHours":19.528603042693167,"quality":"auspicious"},{"name":"Roga","start":"19:32","end":"21:06","startHours":19.528603042693167,"endHours":21.096032977306134,"quality":"inauspicious"},{"name":"Udveg","start":"21:06","end":"22:40","startHours":21.096032977306134,"endHours":22.663462911919105,"quality":"inauspicious"},{"name":"Chala","start":"22:40","end":"00:14","startHours":22.663462911919105,"endHours":24.230892846532075,"quality":"neutral"},{"name":"Labha","start":"00:14","end":"01:48","startHours":24.230892846532075,"endHours":25.798322781145046,"quality":"auspicious"},{"name":"Amṛta","start":"01:48","end":"03:22","startHours":25.798322781145046,"endHours":27.365752715758013,"quality":"auspicious"},{"name":"Kāla","start":"03:22","end":"04:56","startHours":27.365752715758013,"endHours":28.933182650370984,"quality":"inauspicious"},{"name":"Śubha","start":"04:56","end":"06:30","startHours":28.933182650370984,"endHours":30.500612584983955,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:30","end":"07:30","startHours":6.500612584983953,"endHours":7.500612584983953,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:30","end":"08:30","startHours":7.500612584983953,"endHours":8.500612584983953,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:30","end":"09:30","startHours":8.500612584983953,"endHours":9.500612584983953,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:30","end":"10:30","startHours":9.500612584983953,"endHours":10.500612584983953,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:30","end":"11:30","startHours":10.500612584983953,"endHours":11.500612584983953,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:30","end":"12:30","startHours":11.500612584983953,"endHours":12.500612584983953,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:30","end":"13:30","startHours":12.500612584983953,"endHours":13.500612584983953,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:30","end":"14:30","startHours":13.500612584983953,"endHours":14.500612584983953,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:30","end":"15:30","startHours":14.500612584983953,"endHours":15.500612584983953,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:30","end":"16:30","startHours":15.500612584983953,"endHours":16.500612584983955,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:30","end":"17:30","startHours":16.500612584983955,"endHours":17.500612584983955,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:30","end":"18:30","startHours":17.500612584983955,"endHours":18.500612584983955,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:30","end":"19:30","startHours":18.500612584983955,"endHours":19.500612584983955,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:30","end":"20:30","startHours":19.500612584983955,"endHours":20.500612584983955,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:30","end":"21:30","startHours":20.500612584983955,"endHours":21.500612584983955,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:30","end":"22:30","startHours":21.500612584983955,"endHours":22.500612584983955,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:30","end":"23:30","startHours":22.500612584983955,"endHours":23.500612584983955,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:30","end":"00:30","startHours":23.500612584983955,"endHours":24.500612584983955,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:30","end":"01:30","startHours":24.500612584983955,"endHours":25.500612584983955,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:30","end":"02:30","startHours":25.500612584983955,"endHours":26.500612584983955,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:30","end":"03:30","startHours":26.500612584983955,"endHours":27.500612584983955,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:30","end":"04:30","startHours":27.500612584983955,"endHours":28.500612584983955,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:30","end":"05:30","startHours":28.500612584983955,"endHours":29.500612584983955,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:30","end":"06:30","startHours":29.500612584983955,"endHours":30.500612584983955,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"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":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-7.599169275313959,"eotMinutes":14.442429208075392,"ayanamsa":24.1293}},"calendars":{"vikram_samvat":2076,"vikram_samvatsara":"Paridhāvi","saka_samvat":1941,"saka_samvatsara":"Vikāri","bengali_samvat":1426,"malayalam_era":1195,"nanakshahi_year":550,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Pūrṇimā · Vikram 2076 Paridhāvi · Śaka 1941 Vikāri"},"festivals":[{"id":"sharad-purnima","name":"Śarad Pūrṇimā / Kojāgarī Pūrṇimā","name_sanskrit":"शरद पूर्णिमा","tradition":"Vaishnava","associated_deity":"Krishna + Lakṣmī","significance":"Krishna's Mahā-rāsa with the gopīs at Vṛndāvana. Lakṣmī wakes (\"ko jāgartti?\")","vrata":true,"primary_observance":"Night-long jāgaraṇa; offering of pāyasa under moonlight","detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":2,"sources":["Bhāgavata 10.29-33"]},{"id":"rasa-purnima","name":"Rāsa Pūrṇimā (Vraja Mahā-Rāsa)","name_sanskrit":"रास पूर्णिमा","tradition":"Vaishnava","associated_deity":"Krishna + Gopīs","significance":"Krishna's Mahā-rāsa with the gopīs at Vraja (Bhāgavata 10.29-33). Same as Śarad Pūrṇimā but emphasized in Vraja tradition.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":2},{"id":"valmiki-jayanti","name":"Mahārṣi Vālmīki Jayantī","name_sanskrit":"महर्षि वाल्मीकि जयन्ती","tradition":"Pan-Hindu","associated_deity":"Maharṣi Vālmīki (ādi-kavi)","significance":"Composer of Vālmīki Rāmāyaṇa. Āśvina Pūrṇimā tradition.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":3},{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"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":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","relevance":0.5}]},"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 13, 2019 CE · Phoenix, USA · Vidhyamitra","description":"October 13, 2019 CE for Phoenix, USA: Śukla Pūrṇimā, sūryodaya 06:30, sūryāsta 17:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2019-10-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2019-10-13","sa":"https://sa.vidhyamitra.com/city/phoenix/2019-10-13","hi":"https://hi.vidhyamitra.com/city/phoenix/2019-10-13","x-default":"https://vidhyamitra.com/city/phoenix/2019-10-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T07:20:41.162Z","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":"2026-05-15T07:20:41.162Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T07:20:41.162Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}