{"id":"vidhyamitra:city-day:phoenix:1817-12-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1817-12-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1817-12-06","date_display":"December 6, 1817 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":1817,"month":12,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2385044.770833,"kali_year":4919,"ahargana":1796579.2708,"sun":{"sidereal_longitude":232.3085,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":199.7084,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":327.3999,"elapsed_within_tithi_degrees":3.3999},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":199.7084,"elapsed_within_degrees":13.0417},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":72.0169},"karana":{"half_tithi_index":54,"name":"Gara"},"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":1817,"month":12,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2385044.770833,"ahargana":1796579.2708,"kali_year":4919,"ayanamsa_lahiri":21.3096,"grahas":{"sun":{"sidereal_longitude":232.317908,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":197.423408,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false,"latitude":0.6936},"mars":{"sidereal_longitude":58.88360799999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":true},"mercury":{"sidereal_longitude":237.822408,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":241.05810799999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"venus":{"sidereal_longitude":211.644408,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":310.684808,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":28.5845,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":208.5845,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":1817,"month":12,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2385044.770833,"kali_year":4919,"ahargana":1796579.2708,"sun":{"sidereal_longitude":232.3085,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":199.7084,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":327.3999,"elapsed_within_tithi_degrees":3.3999},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":199.7084,"elapsed_within_degrees":13.0417},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":72.0169},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.694,"elongation":32.6},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.694,"opposition_distance":147.4}},"eclipse_window_40days":[{"offset_days":-12,"type":"lunar","occurs":true,"moon_latitude":1.022,"opposition_distance":2.315}]},"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":"07:19","sunsetLocal":"17:21","solarNoonLocal":"12:20","dayLengthHours":10.039097859701315,"dayLengthDisplay":"10 Hours 02 Mins 21 Secs","nightLengthDisplay":"13 Hours 57 Mins 39 Secs","moonriseLocal":"04:37","moonsetLocal":"15:24","rahuKala":{"name":"Rāhu Kāla","start":"09:50","end":"11:05","startHours":9.826110877162144,"endHours":11.080998109624808,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:35","end":"14:51","startHours":13.590772574550137,"endHours":14.845659807012801,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:19","end":"08:34","startHours":7.316336412236814,"endHours":8.57122364469948,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:40","end":"10:00","startHours":9.658792579500455,"endHours":9.99342917482383,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:44","end":"08:00","startHours":7.734632156391036,"endHours":8.002341432649738,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:00","end":"12:40","startHours":12.001248746764094,"endHours":12.67052193741085,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:59","end":"06:39","startHours":5.977790030943305,"endHours":6.64706322159006,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:29","end":"07:19","startHours":6.479744923928371,"endHours":7.316336412236814,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:41","startHours":14.009068318704358,"endHours":14.678341509351112,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:09","end":"17:33","startHours":17.15543427193813,"endHours":17.55543427193813,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:21","end":"17:46","startHours":17.35543427193813,"endHours":17.77373001609235,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:06","end":"18:51","startHours":17.10543427193813,"endHours":18.85543427193813,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:00","end":"00:40","startHours":24.001248746764094,"endHours":24.67052193741085,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:19","end":"08:34","startHours":7.316336412236814,"endHours":8.57122364469948,"quality":"inauspicious"},{"name":"Śubha","start":"08:34","end":"09:50","startHours":8.57122364469948,"endHours":9.826110877162144,"quality":"auspicious"},{"name":"Roga","start":"09:50","end":"11:05","startHours":9.826110877162144,"endHours":11.080998109624808,"quality":"inauspicious"},{"name":"Udveg","start":"11:05","end":"12:20","startHours":11.080998109624808,"endHours":12.335885342087472,"quality":"inauspicious"},{"name":"Chala","start":"12:20","end":"13:35","startHours":12.335885342087472,"endHours":13.590772574550137,"quality":"neutral"},{"name":"Labha","start":"13:35","end":"14:51","startHours":13.590772574550137,"endHours":14.845659807012801,"quality":"auspicious"},{"name":"Amṛta","start":"14:51","end":"16:06","startHours":14.845659807012801,"endHours":16.100547039475465,"quality":"auspicious"},{"name":"Kāla","start":"16:06","end":"17:21","startHours":16.100547039475465,"endHours":17.35543427193813,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:21","end":"19:06","startHours":17.35543427193813,"endHours":19.100547039475465,"quality":"auspicious"},{"name":"Amṛta","start":"19:06","end":"20:51","startHours":19.100547039475465,"endHours":20.8456598070128,"quality":"auspicious"},{"name":"Kāla","start":"20:51","end":"22:35","startHours":20.8456598070128,"endHours":22.590772574550137,"quality":"inauspicious"},{"name":"Śubha","start":"22:35","end":"00:20","startHours":22.590772574550137,"endHours":24.335885342087472,"quality":"auspicious"},{"name":"Roga","start":"00:20","end":"02:05","startHours":24.335885342087472,"endHours":26.080998109624808,"quality":"inauspicious"},{"name":"Udveg","start":"02:05","end":"03:50","startHours":26.080998109624808,"endHours":27.826110877162144,"quality":"inauspicious"},{"name":"Chala","start":"03:50","end":"05:34","startHours":27.826110877162144,"endHours":29.57122364469948,"quality":"neutral"},{"name":"Labha","start":"05:34","end":"07:19","startHours":29.57122364469948,"endHours":31.316336412236815,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:19","end":"08:19","startHours":7.316336412236814,"endHours":8.316336412236815,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:19","end":"09:19","startHours":8.316336412236815,"endHours":9.316336412236815,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:19","end":"10:19","startHours":9.316336412236815,"endHours":10.316336412236815,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:19","end":"11:19","startHours":10.316336412236815,"endHours":11.316336412236815,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:19","end":"12:19","startHours":11.316336412236815,"endHours":12.316336412236815,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:19","end":"13:19","startHours":12.316336412236815,"endHours":13.316336412236815,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:19","end":"14:19","startHours":13.316336412236815,"endHours":14.316336412236815,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:19","end":"15:19","startHours":14.316336412236815,"endHours":15.316336412236815,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:19","end":"16:19","startHours":15.316336412236815,"endHours":16.316336412236815,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:19","end":"17:19","startHours":16.316336412236815,"endHours":17.316336412236815,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:19","end":"18:19","startHours":17.316336412236815,"endHours":18.316336412236815,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:19","end":"19:19","startHours":18.316336412236815,"endHours":19.316336412236815,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:19","end":"20:19","startHours":19.316336412236815,"endHours":20.316336412236815,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:19","end":"21:19","startHours":20.316336412236815,"endHours":21.316336412236815,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:19","end":"22:19","startHours":21.316336412236815,"endHours":22.316336412236815,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:19","end":"23:19","startHours":22.316336412236815,"endHours":23.316336412236815,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:19","end":"00:19","startHours":23.316336412236815,"endHours":24.316336412236815,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:19","end":"01:19","startHours":24.316336412236815,"endHours":25.316336412236815,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:19","end":"02:19","startHours":25.316336412236815,"endHours":26.316336412236815,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:19","end":"03:19","startHours":26.316336412236815,"endHours":27.316336412236815,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:19","end":"04:19","startHours":27.316336412236815,"endHours":28.316336412236815,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:19","end":"05:19","startHours":28.316336412236815,"endHours":29.316336412236815,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:19","end":"06:19","startHours":29.316336412236815,"endHours":30.316336412236815,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:19","end":"07:19","startHours":30.316336412236815,"endHours":31.316336412236815,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"East","anandadiYoga":{"name":"Chatra","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":-22.433084599881834,"eotMinutes":8.142879474751563,"ayanamsa":21.3096}},"calendars":{"vikram_samvat":1874,"vikram_samvatsara":"Vikṛti","saka_samvat":1739,"saka_samvatsara":"Īśvara","bengali_samvat":1224,"malayalam_era":993,"nanakshahi_year":348,"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 Trayodaśī · Vikram 1874 Vikṛti · Śaka 1739 Īśvara"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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 6, 1817 CE · Phoenix, USA · Vidhyamitra","description":"December 6, 1817 CE for Phoenix, USA: Kṛṣṇa Trayodaśī, sūryodaya 07:19, sūryāsta 17:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1817-12-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1817-12-06","sa":"https://sa.vidhyamitra.com/city/phoenix/1817-12-06","hi":"https://hi.vidhyamitra.com/city/phoenix/1817-12-06","x-default":"https://vidhyamitra.com/city/phoenix/1817-12-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-05T17:28:19.666Z","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":"2026-06-05T17:28:19.666Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-05T17:28:19.666Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}