{"id":"vidhyamitra:city-day:phoenix:2159-04-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2159-04-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2159-04-18","date_display":"April 18, 2159 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":2159,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2509725.770833,"kali_year":5260,"ahargana":1921260.2708,"sun":{"sidereal_longitude":1.5174,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":356.0607,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":354.5433,"elapsed_within_tithi_degrees":6.5433},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":356.0607,"elapsed_within_degrees":9.3941},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":357.5781},"karana":{"half_tithi_index":59,"name":"Nāga"},"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":2159,"month":4,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2509725.770833,"ahargana":1921260.2708,"kali_year":5260,"ayanamsa_lahiri":26.0782,"grahas":{"sun":{"sidereal_longitude":1.7609770000000253,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":357.693077,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false,"latitude":4.4907},"mars":{"sidereal_longitude":242.84537699999998,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":354.280177,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":159.39077699999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":44.95687699999996,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":177.35017700000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":262.3851,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":82.3851,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","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":2159,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2509725.770833,"kali_year":5260,"ahargana":1921260.2708,"sun":{"sidereal_longitude":1.5174,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":356.0607,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":354.5433,"elapsed_within_tithi_degrees":6.5433},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":356.0607,"elapsed_within_degrees":9.3941},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":357.5781},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.491,"elongation":5.457},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.491,"opposition_distance":174.543}},"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":"05:55","sunsetLocal":"19:01","solarNoonLocal":"12:28","dayLengthHours":13.09312362188283,"dayLengthDisplay":"13 Hours 05 Mins 35 Secs","nightLengthDisplay":"10 Hours 54 Mins 25 Secs","moonriseLocal":"05:44","moonsetLocal":"18:39","rahuKala":{"name":"Rāhu Kāla","start":"12:28","end":"14:06","startHours":12.46316861840194,"endHours":14.099809071137296,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:33","end":"09:11","startHours":7.553247260195881,"endHours":9.189887712931235,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:50","end":"12:28","startHours":10.826528165666588,"endHours":12.46316861840194,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:58","end":"09:24","startHours":8.971668985899854,"endHours":9.408106439962616,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:28","end":"06:49","startHours":6.462153625038978,"endHours":6.811303588289187,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:54","startHours":12.02673116433918,"endHours":12.899606072464701,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:10","end":"05:03","startHours":4.170856991209483,"endHours":5.043731899335005,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:50","end":"05:55","startHours":4.825513172303625,"endHours":5.916606807460527,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:39","end":"15:31","startHours":14.645355888715747,"endHours":15.51823079684127,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:49","end":"19:13","startHours":18.809730429343357,"endHours":19.209730429343356,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:01","end":"19:33","startHours":19.009730429343357,"endHours":19.555277246921808,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:46","end":"20:31","startHours":18.759730429343357,"endHours":20.509730429343357,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:54","startHours":24.02673116433918,"endHours":24.899606072464703,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:55","end":"07:33","startHours":5.916606807460527,"endHours":7.553247260195881,"quality":"auspicious"},{"name":"Amṛta","start":"07:33","end":"09:11","startHours":7.553247260195881,"endHours":9.189887712931235,"quality":"auspicious"},{"name":"Kāla","start":"09:11","end":"10:50","startHours":9.189887712931235,"endHours":10.826528165666588,"quality":"inauspicious"},{"name":"Śubha","start":"10:50","end":"12:28","startHours":10.826528165666588,"endHours":12.46316861840194,"quality":"auspicious"},{"name":"Roga","start":"12:28","end":"14:06","startHours":12.46316861840194,"endHours":14.099809071137296,"quality":"inauspicious"},{"name":"Udveg","start":"14:06","end":"15:44","startHours":14.099809071137296,"endHours":15.736449523872649,"quality":"inauspicious"},{"name":"Chala","start":"15:44","end":"17:22","startHours":15.736449523872649,"endHours":17.373089976608004,"quality":"neutral"},{"name":"Labha","start":"17:22","end":"19:01","startHours":17.373089976608004,"endHours":19.009730429343357,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:01","end":"20:22","startHours":19.009730429343357,"endHours":20.373089976608004,"quality":"inauspicious"},{"name":"Chala","start":"20:22","end":"21:44","startHours":20.373089976608004,"endHours":21.73644952387265,"quality":"neutral"},{"name":"Labha","start":"21:44","end":"23:06","startHours":21.73644952387265,"endHours":23.099809071137294,"quality":"auspicious"},{"name":"Amṛta","start":"23:06","end":"00:28","startHours":23.099809071137294,"endHours":24.46316861840194,"quality":"auspicious"},{"name":"Kāla","start":"00:28","end":"01:50","startHours":24.46316861840194,"endHours":25.826528165666588,"quality":"inauspicious"},{"name":"Śubha","start":"01:50","end":"03:11","startHours":25.826528165666588,"endHours":27.189887712931235,"quality":"auspicious"},{"name":"Roga","start":"03:11","end":"04:33","startHours":27.189887712931235,"endHours":28.55324726019588,"quality":"inauspicious"},{"name":"Udveg","start":"04:33","end":"05:55","startHours":28.55324726019588,"endHours":29.916606807460525,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:55","end":"06:55","startHours":5.916606807460527,"endHours":6.916606807460527,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:55","end":"07:55","startHours":6.916606807460527,"endHours":7.916606807460527,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:55","end":"08:55","startHours":7.916606807460527,"endHours":8.916606807460527,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:55","end":"09:55","startHours":8.916606807460527,"endHours":9.916606807460527,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:55","end":"10:55","startHours":9.916606807460527,"endHours":10.916606807460527,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:55","end":"11:55","startHours":10.916606807460527,"endHours":11.916606807460527,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:55","end":"12:55","startHours":11.916606807460527,"endHours":12.916606807460527,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:55","end":"13:55","startHours":12.916606807460527,"endHours":13.916606807460527,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:55","end":"14:55","startHours":13.916606807460527,"endHours":14.916606807460527,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:55","end":"15:55","startHours":14.916606807460527,"endHours":15.916606807460527,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:55","end":"16:55","startHours":15.916606807460527,"endHours":16.916606807460525,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:55","end":"17:55","startHours":16.916606807460525,"endHours":17.916606807460525,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:55","end":"18:55","startHours":17.916606807460525,"endHours":18.916606807460525,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:55","end":"19:55","startHours":18.916606807460525,"endHours":19.916606807460525,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:55","end":"20:55","startHours":19.916606807460525,"endHours":20.916606807460525,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:55","end":"21:55","startHours":20.916606807460525,"endHours":21.916606807460525,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:55","end":"22:55","startHours":21.916606807460525,"endHours":22.916606807460525,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:55","end":"23:55","startHours":22.916606807460525,"endHours":23.916606807460525,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:55","end":"00:55","startHours":23.916606807460525,"endHours":24.916606807460525,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:55","end":"01:55","startHours":24.916606807460525,"endHours":25.916606807460525,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:55","end":"02:55","startHours":25.916606807460525,"endHours":26.916606807460525,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:55","end":"03:55","startHours":26.916606807460525,"endHours":27.916606807460525,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:55","end":"04:55","startHours":27.916606807460525,"endHours":28.916606807460525,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:55","end":"05:55","startHours":28.916606807460525,"endHours":29.916606807460525,"planetary_lord":"Sun"}],"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":"South-West","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":10.704140896054454,"eotMinutes":0.5058828958834352,"ayanamsa":26.0782}},"calendars":{"vikram_samvat":2216,"vikram_samvatsara":"Aṅgirasa","saka_samvat":2081,"saka_samvatsara":"Siddhārthī","bengali_samvat":1566,"malayalam_era":1335,"nanakshahi_year":690,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Amāvasyā · Vikram 2216 Aṅgirasa · Śaka 2081 Siddhārthī"},"festivals":[],"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":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","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 18, 2159 CE · Phoenix, USA · Vidhyamitra","description":"April 18, 2159 CE for Phoenix, USA: Kṛṣṇa Amāvasyā, sūryodaya 05:55, sūryāsta 19:01.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2159-04-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2159-04-18","sa":"https://sa.vidhyamitra.com/city/phoenix/2159-04-18","hi":"https://hi.vidhyamitra.com/city/phoenix/2159-04-18","x-default":"https://vidhyamitra.com/city/phoenix/2159-04-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T05:00:26.084Z","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":"2026-05-30T05:00:26.084Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T05:00:26.084Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}