{"id":"vidhyamitra:city-day:phoenix:2103-04-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2103-04-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2103-04-15","date_display":"April 15, 2103 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":2103,"month":4,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489268.770833,"kali_year":5204,"ahargana":1900803.2708,"sun":{"sidereal_longitude":359.0672,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":95.0716,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":96.0043,"elapsed_within_tithi_degrees":0.0043},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":95.0716,"elapsed_within_degrees":1.7382},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":94.1388},"karana":{"half_tithi_index":16,"name":"Bālava"},"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":2103,"month":4,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2489268.770833,"ahargana":1900803.2708,"kali_year":5204,"ayanamsa_lahiri":25.2958,"grahas":{"sun":{"sidereal_longitude":359.171185,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":96.48228499999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false,"latitude":-0.6859},"mars":{"sidereal_longitude":321.318485,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":353.161185,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":269.8036850000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":41.142285000000015,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":214.68078500000001,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":266.2954,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":86.2954,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"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":2103,"month":4,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489268.770833,"kali_year":5204,"ahargana":1900803.2708,"sun":{"sidereal_longitude":359.0672,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":95.0716,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":96.0043,"elapsed_within_tithi_degrees":0.0043},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":95.0716,"elapsed_within_degrees":1.7382},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":94.1388},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.686,"elongation":96.004},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.686,"opposition_distance":83.996}},"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":"05:59","sunsetLocal":"18:58","solarNoonLocal":"12:29","dayLengthHours":12.980463809853717,"dayLengthDisplay":"12 Hours 58 Mins 50 Secs","nightLengthDisplay":"11 Hours 01 Mins 10 Secs","moonriseLocal":"12:00","moonsetLocal":"01:56","rahuKala":{"name":"Rāhu Kāla","start":"17:21","end":"18:58","startHours":17.34327599632526,"endHours":18.965833972556975,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:29","end":"14:06","startHours":12.475602067630117,"endHours":14.098160043861832,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:43","end":"17:21","startHours":15.720718020093546,"endHours":17.34327599632526,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:01","end":"09:27","startHours":9.014145051669125,"endHours":9.44682717866425,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:32","end":"06:52","startHours":6.526222821447163,"endHours":6.872368523043263,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:54","startHours":12.042919940634993,"endHours":12.90828419462524,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:15","end":"05:07","startHours":4.254641654722763,"endHours":5.1200059087130105,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:54","end":"05:59","startHours":4.903664845215449,"endHours":5.9853701627032585,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:38","end":"15:30","startHours":14.639012702605736,"endHours":15.504376956595983,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:46","end":"19:10","startHours":18.765833972556976,"endHours":19.165833972556975,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:58","end":"19:30","startHours":18.965833972556975,"endHours":19.50668663130088,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:43","end":"20:28","startHours":18.715833972556975,"endHours":20.465833972556975,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:54","startHours":24.04291994063499,"endHours":24.908284194625242,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:59","end":"07:36","startHours":5.9853701627032585,"endHours":7.607928138934973,"quality":"inauspicious"},{"name":"Chala","start":"07:36","end":"09:14","startHours":7.607928138934973,"endHours":9.230486115166688,"quality":"neutral"},{"name":"Labha","start":"09:14","end":"10:51","startHours":9.230486115166688,"endHours":10.853044091398402,"quality":"auspicious"},{"name":"Amṛta","start":"10:51","end":"12:29","startHours":10.853044091398402,"endHours":12.475602067630117,"quality":"auspicious"},{"name":"Kāla","start":"12:29","end":"14:06","startHours":12.475602067630117,"endHours":14.098160043861832,"quality":"inauspicious"},{"name":"Śubha","start":"14:06","end":"15:43","startHours":14.098160043861832,"endHours":15.720718020093546,"quality":"auspicious"},{"name":"Roga","start":"15:43","end":"17:21","startHours":15.720718020093546,"endHours":17.34327599632526,"quality":"inauspicious"},{"name":"Udveg","start":"17:21","end":"18:58","startHours":17.34327599632526,"endHours":18.965833972556975,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:58","end":"20:21","startHours":18.965833972556975,"endHours":20.34327599632526,"quality":"auspicious"},{"name":"Roga","start":"20:21","end":"21:43","startHours":20.34327599632526,"endHours":21.720718020093546,"quality":"inauspicious"},{"name":"Udveg","start":"21:43","end":"23:06","startHours":21.720718020093546,"endHours":23.09816004386183,"quality":"inauspicious"},{"name":"Chala","start":"23:06","end":"00:29","startHours":23.09816004386183,"endHours":24.475602067630117,"quality":"neutral"},{"name":"Labha","start":"00:29","end":"01:51","startHours":24.475602067630117,"endHours":25.853044091398402,"quality":"auspicious"},{"name":"Amṛta","start":"01:51","end":"03:14","startHours":25.853044091398402,"endHours":27.230486115166688,"quality":"auspicious"},{"name":"Kāla","start":"03:14","end":"04:36","startHours":27.230486115166688,"endHours":28.607928138934973,"quality":"inauspicious"},{"name":"Śubha","start":"04:36","end":"05:59","startHours":28.607928138934973,"endHours":29.98537016270326,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:59","end":"06:59","startHours":5.9853701627032585,"endHours":6.9853701627032585,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:59","end":"07:59","startHours":6.9853701627032585,"endHours":7.9853701627032585,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:59","end":"08:59","startHours":7.9853701627032585,"endHours":8.985370162703259,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:59","end":"09:59","startHours":8.985370162703259,"endHours":9.985370162703259,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:59","end":"10:59","startHours":9.985370162703259,"endHours":10.985370162703259,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:59","end":"11:59","startHours":10.985370162703259,"endHours":11.985370162703259,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:59","end":"12:59","startHours":11.985370162703259,"endHours":12.985370162703259,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:59","end":"13:59","startHours":12.985370162703259,"endHours":13.985370162703259,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:59","end":"14:59","startHours":13.985370162703259,"endHours":14.985370162703259,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:59","end":"15:59","startHours":14.985370162703259,"endHours":15.985370162703259,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:59","end":"16:59","startHours":15.985370162703259,"endHours":16.98537016270326,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:59","end":"17:59","startHours":16.98537016270326,"endHours":17.98537016270326,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:59","end":"18:59","startHours":17.98537016270326,"endHours":18.98537016270326,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:59","end":"19:59","startHours":18.98537016270326,"endHours":19.98537016270326,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:59","end":"20:59","startHours":19.98537016270326,"endHours":20.98537016270326,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:59","end":"21:59","startHours":20.98537016270326,"endHours":21.98537016270326,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:59","end":"22:59","startHours":21.98537016270326,"endHours":22.98537016270326,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:59","end":"23:59","startHours":22.98537016270326,"endHours":23.98537016270326,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:59","end":"00:59","startHours":23.98537016270326,"endHours":24.98537016270326,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:59","end":"01:59","startHours":24.98537016270326,"endHours":25.98537016270326,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:59","end":"02:59","startHours":25.98537016270326,"endHours":26.98537016270326,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:59","end":"03:59","startHours":26.98537016270326,"endHours":27.98537016270326,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:59","end":"04:59","startHours":27.98537016270326,"endHours":28.98537016270326,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:59","end":"05:59","startHours":28.98537016270326,"endHours":29.98537016270326,"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":["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":"Śrīvatsa","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":9.48145647729016,"eotMinutes":-0.240124057807095,"ayanamsa":25.2958}},"calendars":{"vikram_samvat":2160,"vikram_samvatsara":"Dhātṛ","saka_samvat":2025,"saka_samvatsara":"Rudhirodgāri","bengali_samvat":1510,"malayalam_era":1279,"nanakshahi_year":634,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Navamī · Vikram 2160 Dhātṛ · Śaka 2025 Rudhirodgāri"},"festivals":[{"id":"rama-navami","name":"Rāma Navamī","name_sanskrit":"राम नवमी","tradition":"Vaishnava","associated_deity":"Rāma (18th avatāra of Krishna)","deity_avatara_index":18,"significance":"Bhagavān Rāma's birth at Ayodhyā. Sūryavaṃśa's most exalted moment.","vrata":true,"primary_observance":"Madhyāhna (noon) abhiṣekam in Ayodhyā tradition","detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":1,"related_chart":"rama","historical_anchor":{"event":"Bhagavān Rāma's birth at Ayodhyā","date_julian":"-1626101-04-03","location":"Ayodhyā"},"sources":["Vālmīki Rāmāyaṇa, Bāla-Kāṇḍa 1.18"]}],"todays_walk":{"walk":{"id":"rama-navami-walk","name":"Rāma Navamī Walk","name_sanskrit":"राम नवमी यात्रा","type":"festival","description":"Vālmīki Bāla-Kāṇḍa selections + BG 4.7-8 (avatāra principle).","step_count":9,"url":"/walk/rama-navami-walk"},"reason":"Today is Rāma Navamī — its dedicated walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","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 April 15, 2103 CE · Phoenix, USA · Vidhyamitra","description":"April 15, 2103 CE for Phoenix, USA: Śukla Navamī, sūryodaya 05:59, sūryāsta 18:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2103-04-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2103-04-15","sa":"https://sa.vidhyamitra.com/city/phoenix/2103-04-15","hi":"https://hi.vidhyamitra.com/city/phoenix/2103-04-15","x-default":"https://vidhyamitra.com/city/phoenix/2103-04-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T06:05:50.942Z","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":"2026-06-03T06:05:50.942Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T06:05:50.942Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}