{"id":"vidhyamitra:city-day:phoenix:2148-12-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2148-12-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2148-12-20","date_display":"December 20, 2148 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":2148,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2505954.770833,"kali_year":5250,"ahargana":1917489.2708,"sun":{"sidereal_longitude":241.898,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":353.2464,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":111.3484,"elapsed_within_tithi_degrees":3.3484},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":353.2464,"elapsed_within_degrees":6.5798},"yoga":{"number":18,"name":"Varīyān","sum_longitude":235.1444},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2148,"month":12,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2505954.770833,"ahargana":1917489.2708,"kali_year":5250,"ayanamsa_lahiri":25.934,"grahas":{"sun":{"sidereal_longitude":242.60985700000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":351.960357,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false,"latitude":-4.2558},"mars":{"sidereal_longitude":38.83335699999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":246.69765700000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":211.56855700000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":226.83155699999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":41.38765699999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":102.1908,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":282.1908,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":2148,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2505954.770833,"kali_year":5250,"ahargana":1917489.2708,"sun":{"sidereal_longitude":241.898,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":353.2464,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":111.3484,"elapsed_within_tithi_degrees":3.3484},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":353.2464,"elapsed_within_degrees":6.5798},"yoga":{"number":18,"name":"Varīyān","sum_longitude":235.1444},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.256,"elongation":111.348},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.256,"opposition_distance":68.652}},"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":"07:28","sunsetLocal":"17:24","solarNoonLocal":"12:26","dayLengthHours":9.933130395545207,"dayLengthDisplay":"9 Hours 55 Mins 59 Secs","nightLengthDisplay":"14 Hours 04 Mins 01 Secs","moonriseLocal":"13:22","moonsetLocal":"02:05","rahuKala":{"name":"Rāhu Kāla","start":"11:12","end":"12:26","startHours":11.1990934085157,"endHours":12.440734707958853,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:55","end":"16:10","startHours":14.924017306845155,"endHours":16.165658606288304,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:43","end":"09:57","startHours":8.7158108096294,"endHours":9.95745210907255,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:48","end":"10:07","startHours":9.791899935813465,"endHours":10.123004282331637,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:53","end":"08:09","startHours":7.888049943333965,"endHours":8.152933420548504,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:07","end":"12:46","startHours":12.10963036144068,"endHours":12.771839054477027,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:09","end":"06:49","startHours":6.149752124113554,"endHours":6.8119608171499015,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:39","end":"07:28","startHours":6.6464086438908145,"endHours":7.474169510186249,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:06","end":"14:46","startHours":14.09625644054972,"endHours":14.758465133586068,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:12","end":"17:36","startHours":17.207299905731457,"endHours":17.607299905731455,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:24","end":"17:49","startHours":17.407299905731456,"endHours":17.821180338879174,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:09","end":"18:54","startHours":17.157299905731456,"endHours":18.907299905731456,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:07","end":"00:46","startHours":24.10963036144068,"endHours":24.771839054477027,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:28","end":"08:43","startHours":7.474169510186249,"endHours":8.7158108096294,"quality":"neutral"},{"name":"Labha","start":"08:43","end":"09:57","startHours":8.7158108096294,"endHours":9.95745210907255,"quality":"auspicious"},{"name":"Amṛta","start":"09:57","end":"11:12","startHours":9.95745210907255,"endHours":11.1990934085157,"quality":"auspicious"},{"name":"Kāla","start":"11:12","end":"12:26","startHours":11.1990934085157,"endHours":12.440734707958853,"quality":"inauspicious"},{"name":"Śubha","start":"12:26","end":"13:41","startHours":12.440734707958853,"endHours":13.682376007402002,"quality":"auspicious"},{"name":"Roga","start":"13:41","end":"14:55","startHours":13.682376007402002,"endHours":14.924017306845155,"quality":"inauspicious"},{"name":"Udveg","start":"14:55","end":"16:10","startHours":14.924017306845155,"endHours":16.165658606288304,"quality":"inauspicious"},{"name":"Chala","start":"16:10","end":"17:24","startHours":16.165658606288304,"endHours":17.407299905731456,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:24","end":"19:10","startHours":17.407299905731456,"endHours":19.165658606288304,"quality":"inauspicious"},{"name":"Udveg","start":"19:10","end":"20:55","startHours":19.165658606288304,"endHours":20.924017306845155,"quality":"inauspicious"},{"name":"Chala","start":"20:55","end":"22:41","startHours":20.924017306845155,"endHours":22.682376007402002,"quality":"neutral"},{"name":"Labha","start":"22:41","end":"00:26","startHours":22.682376007402002,"endHours":24.440734707958853,"quality":"auspicious"},{"name":"Amṛta","start":"00:26","end":"02:12","startHours":24.440734707958853,"endHours":26.1990934085157,"quality":"auspicious"},{"name":"Kāla","start":"02:12","end":"03:57","startHours":26.1990934085157,"endHours":27.95745210907255,"quality":"inauspicious"},{"name":"Śubha","start":"03:57","end":"05:43","startHours":27.95745210907255,"endHours":29.7158108096294,"quality":"auspicious"},{"name":"Roga","start":"05:43","end":"07:28","startHours":29.7158108096294,"endHours":31.47416951018625,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:28","end":"08:28","startHours":7.474169510186249,"endHours":8.474169510186249,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:28","end":"09:28","startHours":8.474169510186249,"endHours":9.474169510186249,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:28","end":"10:28","startHours":9.474169510186249,"endHours":10.474169510186249,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:28","end":"11:28","startHours":10.474169510186249,"endHours":11.474169510186249,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:28","end":"12:28","startHours":11.474169510186249,"endHours":12.474169510186249,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:28","end":"13:28","startHours":12.474169510186249,"endHours":13.474169510186249,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:28","end":"14:28","startHours":13.474169510186249,"endHours":14.474169510186249,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:28","end":"15:28","startHours":14.474169510186249,"endHours":15.474169510186249,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:28","end":"16:28","startHours":15.474169510186249,"endHours":16.47416951018625,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:28","end":"17:28","startHours":16.47416951018625,"endHours":17.47416951018625,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:28","end":"18:28","startHours":17.47416951018625,"endHours":18.47416951018625,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:28","end":"19:28","startHours":18.47416951018625,"endHours":19.47416951018625,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:28","end":"20:28","startHours":19.47416951018625,"endHours":20.47416951018625,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:28","end":"21:28","startHours":20.47416951018625,"endHours":21.47416951018625,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:28","end":"22:28","startHours":21.47416951018625,"endHours":22.47416951018625,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:28","end":"23:28","startHours":22.47416951018625,"endHours":23.47416951018625,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:28","end":"00:28","startHours":23.47416951018625,"endHours":24.47416951018625,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:28","end":"01:28","startHours":24.47416951018625,"endHours":25.47416951018625,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:28","end":"02:28","startHours":25.47416951018625,"endHours":26.47416951018625,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:28","end":"03:28","startHours":26.47416951018625,"endHours":27.47416951018625,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:28","end":"04:28","startHours":27.47416951018625,"endHours":28.47416951018625,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:28","end":"05:28","startHours":28.47416951018625,"endHours":29.47416951018625,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:28","end":"06:28","startHours":29.47416951018625,"endHours":30.47416951018625,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:28","end":"07:28","startHours":30.47416951018625,"endHours":31.47416951018625,"planetary_lord":"Mars"}],"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":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"South-East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.4284794683292,"eotMinutes":1.851917522468745,"ayanamsa":25.934}},"calendars":{"vikram_samvat":2205,"vikram_samvatsara":"Durmati","saka_samvat":2070,"saka_samvatsara":"Kīlaka","bengali_samvat":1555,"malayalam_era":1324,"nanakshahi_year":679,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Daśamī · Vikram 2205 Durmati · Śaka 2070 Kīlaka"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 20, 2148 CE · Phoenix, USA · Vidhyamitra","description":"December 20, 2148 CE for Phoenix, USA: Śukla Daśamī, sūryodaya 07:28, sūryāsta 17:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2148-12-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2148-12-20","sa":"https://sa.vidhyamitra.com/city/phoenix/2148-12-20","hi":"https://hi.vidhyamitra.com/city/phoenix/2148-12-20","x-default":"https://vidhyamitra.com/city/phoenix/2148-12-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T01:04:13.204Z","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":"2026-06-02T01:04:13.204Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T01:04:13.204Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}