{"id":"vidhyamitra:city-day:phoenix:2018-12-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2018-12-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2018-12-08","date_display":"December 8, 2018 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":2018,"month":12,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458460.770833,"kali_year":5120,"ahargana":1869995.2708,"sun":{"sidereal_longitude":231.2743,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":241.6873,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":10.413,"elapsed_within_tithi_degrees":10.413},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":241.6873,"elapsed_within_degrees":1.6873},"yoga":{"number":9,"name":"Śūla","sum_longitude":112.9616},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2018,"month":12,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458460.770833,"ahargana":1869995.2708,"kali_year":5120,"ayanamsa_lahiri":24.1175,"grahas":{"sun":{"sidereal_longitude":231.766977,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":240.173677,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false,"latitude":2.7041},"mars":{"sidereal_longitude":319.628277,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":212.90897700000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":222.40027699999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":188.815477,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":254.37637699999993,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":98.6515,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":278.6515,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"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":2018,"month":12,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458460.770833,"kali_year":5120,"ahargana":1869995.2708,"sun":{"sidereal_longitude":231.2743,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":241.6873,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":10.413,"elapsed_within_tithi_degrees":10.413},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":241.6873,"elapsed_within_degrees":1.6873},"yoga":{"number":9,"name":"Śūla","sum_longitude":112.9616},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.704,"elongation":10.413},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.704,"opposition_distance":169.587}},"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":"07:21","sunsetLocal":"17:21","solarNoonLocal":"12:21","dayLengthHours":10.01207182112141,"dayLengthDisplay":"10 Hours 00 Mins 43 Secs","nightLengthDisplay":"13 Hours 59 Mins 17 Secs","moonriseLocal":"07:58","moonsetLocal":"17:52","rahuKala":{"name":"Rāhu Kāla","start":"09:51","end":"11:06","startHours":9.846944959614081,"endHours":11.09845393725426,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:36","end":"14:51","startHours":13.601471892534612,"endHours":14.852980870174786,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:21","end":"08:36","startHours":7.34392700433373,"endHours":8.595435981973907,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:41","end":"10:01","startHours":9.680077095928725,"endHours":10.013812823299439,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:46","end":"08:02","startHours":7.7610966635471215,"endHours":8.028085245443693,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:01","end":"12:41","startHours":12.01622718752372,"endHours":12.683698642265147,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:01","end":"06:41","startHours":6.0089840948508755,"endHours":6.676455549592302,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:31","end":"07:21","startHours":6.509587685906945,"endHours":7.34392700433373,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:41","startHours":14.018641551748004,"endHours":14.686113006489432,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:09","end":"17:33","startHours":17.15599882545514,"endHours":17.555998825455138,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:21","end":"17:46","startHours":17.35599882545514,"endHours":17.77316848466853,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:06","end":"18:51","startHours":17.10599882545514,"endHours":18.85599882545514,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:01","end":"00:41","startHours":24.01622718752372,"endHours":24.683698642265146,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:21","end":"08:36","startHours":7.34392700433373,"endHours":8.595435981973907,"quality":"inauspicious"},{"name":"Śubha","start":"08:36","end":"09:51","startHours":8.595435981973907,"endHours":9.846944959614081,"quality":"auspicious"},{"name":"Roga","start":"09:51","end":"11:06","startHours":9.846944959614081,"endHours":11.09845393725426,"quality":"inauspicious"},{"name":"Udveg","start":"11:06","end":"12:21","startHours":11.09845393725426,"endHours":12.349962914894434,"quality":"inauspicious"},{"name":"Chala","start":"12:21","end":"13:36","startHours":12.349962914894434,"endHours":13.601471892534612,"quality":"neutral"},{"name":"Labha","start":"13:36","end":"14:51","startHours":13.601471892534612,"endHours":14.852980870174786,"quality":"auspicious"},{"name":"Amṛta","start":"14:51","end":"16:06","startHours":14.852980870174786,"endHours":16.104489847814964,"quality":"auspicious"},{"name":"Kāla","start":"16:06","end":"17:21","startHours":16.104489847814964,"endHours":17.35599882545514,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:21","end":"19:06","startHours":17.35599882545514,"endHours":19.10448984781496,"quality":"auspicious"},{"name":"Amṛta","start":"19:06","end":"20:51","startHours":19.10448984781496,"endHours":20.852980870174786,"quality":"auspicious"},{"name":"Kāla","start":"20:51","end":"22:36","startHours":20.852980870174786,"endHours":22.60147189253461,"quality":"inauspicious"},{"name":"Śubha","start":"22:36","end":"00:21","startHours":22.60147189253461,"endHours":24.349962914894434,"quality":"auspicious"},{"name":"Roga","start":"00:21","end":"02:06","startHours":24.349962914894434,"endHours":26.098453937254256,"quality":"inauspicious"},{"name":"Udveg","start":"02:06","end":"03:51","startHours":26.098453937254256,"endHours":27.84694495961408,"quality":"inauspicious"},{"name":"Chala","start":"03:51","end":"05:36","startHours":27.84694495961408,"endHours":29.595435981973907,"quality":"neutral"},{"name":"Labha","start":"05:36","end":"07:21","startHours":29.595435981973907,"endHours":31.34392700433373,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:21","end":"08:21","startHours":7.34392700433373,"endHours":8.343927004333729,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:21","end":"09:21","startHours":8.343927004333729,"endHours":9.343927004333729,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:21","end":"10:21","startHours":9.343927004333729,"endHours":10.343927004333729,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:21","end":"11:21","startHours":10.343927004333729,"endHours":11.343927004333729,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:21","end":"12:21","startHours":11.343927004333729,"endHours":12.343927004333729,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:21","end":"13:21","startHours":12.343927004333729,"endHours":13.343927004333729,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:21","end":"14:21","startHours":13.343927004333729,"endHours":14.343927004333729,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:21","end":"15:21","startHours":14.343927004333729,"endHours":15.343927004333729,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:21","end":"16:21","startHours":15.343927004333729,"endHours":16.34392700433373,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:21","end":"17:21","startHours":16.34392700433373,"endHours":17.34392700433373,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:21","end":"18:21","startHours":17.34392700433373,"endHours":18.34392700433373,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:21","end":"19:21","startHours":18.34392700433373,"endHours":19.34392700433373,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:21","end":"20:21","startHours":19.34392700433373,"endHours":20.34392700433373,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:21","end":"21:21","startHours":20.34392700433373,"endHours":21.34392700433373,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:21","end":"22:21","startHours":21.34392700433373,"endHours":22.34392700433373,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:21","end":"23:21","startHours":22.34392700433373,"endHours":23.34392700433373,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:21","end":"00:21","startHours":23.34392700433373,"endHours":24.34392700433373,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:21","end":"01:21","startHours":24.34392700433373,"endHours":25.34392700433373,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:21","end":"02:21","startHours":25.34392700433373,"endHours":26.34392700433373,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:21","end":"03:21","startHours":26.34392700433373,"endHours":27.34392700433373,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:21","end":"04:21","startHours":27.34392700433373,"endHours":28.34392700433373,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:21","end":"05:21","startHours":28.34392700433373,"endHours":29.34392700433373,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:21","end":"06:21","startHours":29.34392700433373,"endHours":30.34392700433373,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:21","end":"07:21","startHours":30.34392700433373,"endHours":31.34392700433373,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-22.6886520910597,"eotMinutes":7.298225106333945,"ayanamsa":24.1175}},"calendars":{"vikram_samvat":2075,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1940,"saka_samvatsara":"Vilambī","bengali_samvat":1425,"malayalam_era":1194,"nanakshahi_year":549,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Pratipada · Vikram 2075 Virodhakṛt · Śaka 1940 Vilambī"},"festivals":[{"id":"vrischika-sankranti","name":"Vṛścika Saṅkrānti","name_sanskrit":"वृश्चिक सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Scorpio.","vrata":false,"detection":{"sun_rashi":"Vṛścika"},"precedence":5}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 December 8, 2018 CE · Phoenix, USA · Vidhyamitra","description":"December 8, 2018 CE for Phoenix, USA: Śukla Pratipada, sūryodaya 07:21, sūryāsta 17:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2018-12-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2018-12-08","sa":"https://sa.vidhyamitra.com/city/phoenix/2018-12-08","hi":"https://hi.vidhyamitra.com/city/phoenix/2018-12-08","x-default":"https://vidhyamitra.com/city/phoenix/2018-12-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T12:53:05.600Z","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":"2026-05-15T12:53:05.600Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T12:53:05.600Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}