{"id":"vidhyamitra:city-day:phoenix:2015-12-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2015-12-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2015-12-10","date_display":"December 10, 2015 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":2015,"month":12,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457366.770833,"kali_year":5117,"ahargana":1868901.2708,"sun":{"sidereal_longitude":233.0933,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":216.0511,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":342.9578,"elapsed_within_tithi_degrees":6.9578},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":216.0511,"elapsed_within_degrees":2.7177},"yoga":{"number":7,"name":"Sukarma","sum_longitude":89.1443},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2015,"month":12,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457366.770833,"ahargana":1868901.2708,"kali_year":5117,"ayanamsa_lahiri":24.0757,"grahas":{"sun":{"sidereal_longitude":233.56417599999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":217.39527599999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false,"latitude":3.8737},"mars":{"sidereal_longitude":171.766476,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":245.65477599999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":147.10867599999995,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":191.43667600000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":224.33797600000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":156.6169,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":336.6169,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","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":2015,"month":12,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457366.770833,"kali_year":5117,"ahargana":1868901.2708,"sun":{"sidereal_longitude":233.0933,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":216.0511,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":342.9578,"elapsed_within_tithi_degrees":6.9578},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":216.0511,"elapsed_within_degrees":2.7177},"yoga":{"number":7,"name":"Sukarma","sum_longitude":89.1443},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.874,"elongation":17.042},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.874,"opposition_distance":162.958}},"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":"07:22","sunsetLocal":"17:22","solarNoonLocal":"12:22","dayLengthHours":9.993665548383312,"dayLengthDisplay":"9 Hours 59 Mins 37 Secs","nightLengthDisplay":"14 Hours 00 Mins 23 Secs","moonriseLocal":"06:11","moonsetLocal":"16:23","rahuKala":{"name":"Rāhu Kāla","start":"13:37","end":"14:52","startHours":13.61364132791033,"endHours":14.862849521458243,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:22","end":"08:37","startHours":7.3676003601707585,"endHours":8.616808553718673,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:52","end":"11:07","startHours":9.866016747266587,"endHours":11.1152249408145,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:42","end":"10:02","startHours":9.699455654793532,"endHours":10.032577839739641,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:47","end":"08:03","startHours":7.784003091353396,"endHours":8.050500839310285,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:42","startHours":12.031310949416303,"endHours":12.697555319308526,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:02","end":"06:42","startHours":6.035111620386317,"endHours":6.701355990278538,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:32","end":"07:22","startHours":6.534794897805482,"endHours":7.3676003601707585,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:02","end":"14:42","startHours":14.030044059092965,"endHours":14.696288428985186,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:10","end":"17:34","startHours":17.16126590855407,"endHours":17.56126590855407,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:22","end":"17:47","startHours":17.36126590855407,"endHours":17.77766863973671,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:07","end":"18:52","startHours":17.11126590855407,"endHours":18.86126590855407,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:42","startHours":24.031310949416305,"endHours":24.697555319308524,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:22","end":"08:37","startHours":7.3676003601707585,"endHours":8.616808553718673,"quality":"auspicious"},{"name":"Roga","start":"08:37","end":"09:52","startHours":8.616808553718673,"endHours":9.866016747266587,"quality":"inauspicious"},{"name":"Udveg","start":"09:52","end":"11:07","startHours":9.866016747266587,"endHours":11.1152249408145,"quality":"inauspicious"},{"name":"Chala","start":"11:07","end":"12:22","startHours":11.1152249408145,"endHours":12.364433134362415,"quality":"neutral"},{"name":"Labha","start":"12:22","end":"13:37","startHours":12.364433134362415,"endHours":13.61364132791033,"quality":"auspicious"},{"name":"Amṛta","start":"13:37","end":"14:52","startHours":13.61364132791033,"endHours":14.862849521458243,"quality":"auspicious"},{"name":"Kāla","start":"14:52","end":"16:07","startHours":14.862849521458243,"endHours":16.112057715006156,"quality":"inauspicious"},{"name":"Śubha","start":"16:07","end":"17:22","startHours":16.112057715006156,"endHours":17.36126590855407,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:22","end":"19:07","startHours":17.36126590855407,"endHours":19.112057715006156,"quality":"auspicious"},{"name":"Kāla","start":"19:07","end":"20:52","startHours":19.112057715006156,"endHours":20.862849521458244,"quality":"inauspicious"},{"name":"Śubha","start":"20:52","end":"22:37","startHours":20.862849521458244,"endHours":22.61364132791033,"quality":"auspicious"},{"name":"Roga","start":"22:37","end":"00:22","startHours":22.61364132791033,"endHours":24.364433134362415,"quality":"inauspicious"},{"name":"Udveg","start":"00:22","end":"02:07","startHours":24.364433134362415,"endHours":26.1152249408145,"quality":"inauspicious"},{"name":"Chala","start":"02:07","end":"03:52","startHours":26.1152249408145,"endHours":27.866016747266585,"quality":"neutral"},{"name":"Labha","start":"03:52","end":"05:37","startHours":27.866016747266585,"endHours":29.616808553718673,"quality":"auspicious"},{"name":"Amṛta","start":"05:37","end":"07:22","startHours":29.616808553718673,"endHours":31.36760036017076,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:22","end":"08:22","startHours":7.3676003601707585,"endHours":8.367600360170758,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:22","end":"09:22","startHours":8.367600360170758,"endHours":9.367600360170758,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:22","end":"10:22","startHours":9.367600360170758,"endHours":10.367600360170758,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:22","end":"11:22","startHours":10.367600360170758,"endHours":11.367600360170758,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:22","end":"12:22","startHours":11.367600360170758,"endHours":12.367600360170758,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:22","end":"13:22","startHours":12.367600360170758,"endHours":13.367600360170758,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:22","end":"14:22","startHours":13.367600360170758,"endHours":14.367600360170758,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:22","end":"15:22","startHours":14.367600360170758,"endHours":15.367600360170758,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:22","end":"16:22","startHours":15.367600360170758,"endHours":16.36760036017076,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:22","end":"17:22","startHours":16.36760036017076,"endHours":17.36760036017076,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:22","end":"18:22","startHours":17.36760036017076,"endHours":18.36760036017076,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:22","end":"19:22","startHours":18.36760036017076,"endHours":19.36760036017076,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:22","end":"20:22","startHours":19.36760036017076,"endHours":20.36760036017076,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:22","end":"21:22","startHours":20.36760036017076,"endHours":21.36760036017076,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:22","end":"22:22","startHours":21.36760036017076,"endHours":22.36760036017076,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:22","end":"23:22","startHours":22.36760036017076,"endHours":23.36760036017076,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:22","end":"00:22","startHours":23.36760036017076,"endHours":24.36760036017076,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:22","end":"01:22","startHours":24.36760036017076,"endHours":25.36760036017076,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:22","end":"02:22","startHours":25.36760036017076,"endHours":26.36760036017076,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:22","end":"03:22","startHours":26.36760036017076,"endHours":27.36760036017076,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:22","end":"04:22","startHours":27.36760036017076,"endHours":28.36760036017076,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:22","end":"05:22","startHours":28.36760036017076,"endHours":29.36760036017076,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:22","end":"06:22","startHours":29.36760036017076,"endHours":30.36760036017076,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:22","end":"07:22","startHours":30.36760036017076,"endHours":31.36760036017076,"planetary_lord":"Moon"}],"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":"South (Dakṣiṇa)","chandraVasa":"North-East","rahuVasa":"North-West","anandadiYoga":{"name":"Saumya","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":-22.862043791721753,"eotMinutes":6.4300119382551255,"ayanamsa":24.0757}},"calendars":{"vikram_samvat":2072,"vikram_samvatsara":"Kīlaka","saka_samvat":1937,"saka_samvatsara":"Manmatha","bengali_samvat":1422,"malayalam_era":1191,"nanakshahi_year":546,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Kṛṣṇa Caturdaśī · Vikram 2072 Kīlaka · Śaka 1937 Manmatha"},"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},{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 10, 2015 CE · Phoenix, USA · Vidhyamitra","description":"December 10, 2015 CE for Phoenix, USA: Kṛṣṇa Caturdaśī, sūryodaya 07:22, sūryāsta 17:22.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2015-12-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2015-12-10","sa":"https://sa.vidhyamitra.com/city/phoenix/2015-12-10","hi":"https://hi.vidhyamitra.com/city/phoenix/2015-12-10","x-default":"https://vidhyamitra.com/city/phoenix/2015-12-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T16:31:19.306Z","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":"2026-05-15T16:31:19.306Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T16:31:19.306Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}