{"id":"vidhyamitra:city-day:phoenix:1986-12-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1986-12-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1986-12-01","date_display":"December 1, 1986 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":1986,"month":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446765.770833,"kali_year":5088,"ahargana":1858300.2708,"sun":{"sidereal_longitude":224.4032,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":214.8842,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":350.481,"elapsed_within_tithi_degrees":2.481},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":214.8842,"elapsed_within_degrees":1.5509},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":79.2874},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1986,"month":12,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446765.770833,"ahargana":1858300.2708,"kali_year":5088,"ayanamsa_lahiri":23.6702,"grahas":{"sun":{"sidereal_longitude":224.87381200000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":215.70061199999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false,"latitude":-2.6797},"mars":{"sidereal_longitude":309.80891199999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":204.89581199999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":320.942012,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":191.86021200000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":227.744512,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":358.3089,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":178.3089,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","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":1986,"month":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446765.770833,"kali_year":5088,"ahargana":1858300.2708,"sun":{"sidereal_longitude":224.4032,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":214.8842,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":350.481,"elapsed_within_tithi_degrees":2.481},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":214.8842,"elapsed_within_degrees":1.5509},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":79.2874},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.68,"elongation":9.519},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.68,"opposition_distance":170.481}},"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":"07:15","sunsetLocal":"17:22","solarNoonLocal":"12:18","dayLengthHours":10.113241045537613,"dayLengthDisplay":"10 Hours 06 Mins 48 Secs","nightLengthDisplay":"13 Hours 53 Mins 12 Secs","moonriseLocal":"06:34","moonsetLocal":"16:49","rahuKala":{"name":"Rāhu Kāla","start":"08:31","end":"09:46","startHours":8.510283764583388,"endHours":9.77443889527559,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:02","end":"12:18","startHours":11.038594025967791,"endHours":12.302749156659992,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:34","end":"14:50","startHours":13.566904287352195,"endHours":14.831059418044397,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:36","end":"09:57","startHours":9.605884877849963,"endHours":9.942992912701216,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:40","end":"07:56","startHours":7.667513677455253,"endHours":7.937200105336256,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:38","startHours":11.965641121808739,"endHours":12.639857191511245,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:54","end":"06:34","startHours":5.897696494486171,"endHours":6.571912564188679,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:24","end":"07:15","startHours":6.403358546763052,"endHours":7.246128633891186,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:59","end":"14:40","startHours":13.988289330916263,"endHours":14.662505400618771,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:10","end":"17:34","startHours":17.1593696794288,"endHours":17.559369679428798,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:22","end":"17:47","startHours":17.3593696794288,"endHours":17.780754722992867,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:07","end":"18:52","startHours":17.1093696794288,"endHours":18.8593696794288,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:38","startHours":23.965641121808737,"endHours":24.639857191511247,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:15","end":"08:31","startHours":7.246128633891186,"endHours":8.510283764583388,"quality":"auspicious"},{"name":"Kāla","start":"08:31","end":"09:46","startHours":8.510283764583388,"endHours":9.77443889527559,"quality":"inauspicious"},{"name":"Śubha","start":"09:46","end":"11:02","startHours":9.77443889527559,"endHours":11.038594025967791,"quality":"auspicious"},{"name":"Roga","start":"11:02","end":"12:18","startHours":11.038594025967791,"endHours":12.302749156659992,"quality":"inauspicious"},{"name":"Udveg","start":"12:18","end":"13:34","startHours":12.302749156659992,"endHours":13.566904287352195,"quality":"inauspicious"},{"name":"Chala","start":"13:34","end":"14:50","startHours":13.566904287352195,"endHours":14.831059418044397,"quality":"neutral"},{"name":"Labha","start":"14:50","end":"16:06","startHours":14.831059418044397,"endHours":16.095214548736596,"quality":"auspicious"},{"name":"Amṛta","start":"16:06","end":"17:22","startHours":16.095214548736596,"endHours":17.3593696794288,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:22","end":"19:06","startHours":17.3593696794288,"endHours":19.095214548736596,"quality":"neutral"},{"name":"Labha","start":"19:06","end":"20:50","startHours":19.095214548736596,"endHours":20.831059418044397,"quality":"auspicious"},{"name":"Amṛta","start":"20:50","end":"22:34","startHours":20.831059418044397,"endHours":22.566904287352195,"quality":"auspicious"},{"name":"Kāla","start":"22:34","end":"00:18","startHours":22.566904287352195,"endHours":24.302749156659992,"quality":"inauspicious"},{"name":"Śubha","start":"00:18","end":"02:02","startHours":24.302749156659992,"endHours":26.03859402596779,"quality":"auspicious"},{"name":"Roga","start":"02:02","end":"03:46","startHours":26.03859402596779,"endHours":27.774438895275587,"quality":"inauspicious"},{"name":"Udveg","start":"03:46","end":"05:31","startHours":27.774438895275587,"endHours":29.510283764583388,"quality":"inauspicious"},{"name":"Chala","start":"05:31","end":"07:15","startHours":29.510283764583388,"endHours":31.246128633891185,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:15","end":"08:15","startHours":7.246128633891186,"endHours":8.246128633891185,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:15","end":"09:15","startHours":8.246128633891185,"endHours":9.246128633891185,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:15","end":"10:15","startHours":9.246128633891185,"endHours":10.246128633891185,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:15","end":"11:15","startHours":10.246128633891185,"endHours":11.246128633891185,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:15","end":"12:15","startHours":11.246128633891185,"endHours":12.246128633891185,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:15","end":"13:15","startHours":12.246128633891185,"endHours":13.246128633891185,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:15","end":"14:15","startHours":13.246128633891185,"endHours":14.246128633891185,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:15","end":"15:15","startHours":14.246128633891185,"endHours":15.246128633891185,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:15","end":"16:15","startHours":15.246128633891185,"endHours":16.246128633891185,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:15","end":"17:15","startHours":16.246128633891185,"endHours":17.246128633891185,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:15","end":"18:15","startHours":17.246128633891185,"endHours":18.246128633891185,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:15","end":"19:15","startHours":18.246128633891185,"endHours":19.246128633891185,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:15","end":"20:15","startHours":19.246128633891185,"endHours":20.246128633891185,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:15","end":"21:15","startHours":20.246128633891185,"endHours":21.246128633891185,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:15","end":"22:15","startHours":21.246128633891185,"endHours":22.246128633891185,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:15","end":"23:15","startHours":22.246128633891185,"endHours":23.246128633891185,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:15","end":"00:15","startHours":23.246128633891185,"endHours":24.246128633891185,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:15","end":"01:15","startHours":24.246128633891185,"endHours":25.246128633891185,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:15","end":"02:15","startHours":25.246128633891185,"endHours":26.246128633891185,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:15","end":"03:15","startHours":26.246128633891185,"endHours":27.246128633891185,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:15","end":"04:15","startHours":27.246128633891185,"endHours":28.246128633891185,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:15","end":"05:15","startHours":28.246128633891185,"endHours":29.246128633891185,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:15","end":"06:15","startHours":29.246128633891185,"endHours":30.246128633891185,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:15","end":"07:15","startHours":30.246128633891185,"endHours":31.246128633891185,"planetary_lord":"Venus"}],"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","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"North-East","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-21.726048557105866,"eotMinutes":10.131050600400467,"ayanamsa":23.6702}},"calendars":{"vikram_samvat":2043,"vikram_samvatsara":"Pramāthi","saka_samvat":1908,"saka_samvatsara":"Akṣaya","bengali_samvat":1393,"malayalam_era":1162,"nanakshahi_year":517,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Kārtika","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Kṛṣṇa Amāvasyā · Vikram 2043 Pramāthi · Śaka 1908 Akṣaya"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 December 1, 1986 CE · Phoenix, USA · Vidhyamitra","description":"December 1, 1986 CE for Phoenix, USA: Kṛṣṇa Amāvasyā, sūryodaya 07:15, sūryāsta 17:22.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1986-12-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1986-12-01","sa":"https://sa.vidhyamitra.com/city/phoenix/1986-12-01","hi":"https://hi.vidhyamitra.com/city/phoenix/1986-12-01","x-default":"https://vidhyamitra.com/city/phoenix/1986-12-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T10:44:19.876Z","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":"2026-05-31T10:44:19.876Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T10:44:19.876Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}