{"id":"vidhyamitra:city-day:phoenix:1997-09-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1997-09-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1997-09-06","date_display":"September 6, 1997 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":1997,"month":9,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450697.770833,"kali_year":5099,"ahargana":1862232.2708,"sun":{"sidereal_longitude":138.9774,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":186.7717,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":47.7943,"elapsed_within_tithi_degrees":11.7943},"nakshatra":{"number":15,"name":"Svātī","pada":1,"moon_longitude":186.7717,"elapsed_within_degrees":0.105},"yoga":{"number":25,"name":"Brahma","sum_longitude":325.7492},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"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":1997,"month":9,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450697.770833,"ahargana":1862232.2708,"kali_year":5099,"ayanamsa_lahiri":23.8206,"grahas":{"sun":{"sidereal_longitude":139.675881,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":183.58968099999993,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false,"latitude":2.6938},"mars":{"sidereal_longitude":200.66168100000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":130.168881,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":289.919481,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":true},"venus":{"sidereal_longitude":179.160481,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":355.456981,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":149.9726,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":329.9726,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":1997,"month":9,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450697.770833,"kali_year":5099,"ahargana":1862232.2708,"sun":{"sidereal_longitude":138.9774,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":186.7717,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":47.7943,"elapsed_within_tithi_degrees":11.7943},"nakshatra":{"number":15,"name":"Svātī","pada":1,"moon_longitude":186.7717,"elapsed_within_degrees":0.105},"yoga":{"number":25,"name":"Brahma","sum_longitude":325.7492},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.694,"elongation":47.794},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.694,"opposition_distance":132.206}},"eclipse_window_40days":[{"offset_days":-4,"type":"solar","occurs":true,"moon_latitude":-1.043,"elongation":1.659}]},"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":"06:05","sunsetLocal":"18:47","solarNoonLocal":"12:26","dayLengthHours":12.708843519232737,"dayLengthDisplay":"12 Hours 42 Mins 32 Secs","nightLengthDisplay":"11 Hours 17 Mins 28 Secs","moonriseLocal":"09:47","moonsetLocal":"20:56","rahuKala":{"name":"Rāhu Kāla","start":"09:15","end":"10:51","startHours":9.257705658274471,"endHours":10.846311098178564,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:01","end":"15:37","startHours":14.023521977986748,"endHours":15.61212741789084,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:05","end":"07:40","startHours":6.080494778466288,"endHours":7.66910021837038,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:03","end":"09:28","startHours":9.045891599620592,"endHours":9.469519716928351,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:37","end":"06:57","startHours":6.610029925100985,"endHours":6.948932418947192,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:01","end":"12:52","startHours":12.0112884207749,"endHours":12.858544655390414,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:23","end":"05:14","startHours":4.385982309235256,"endHours":5.233238543850772,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:01","end":"06:05","startHours":5.021424485196893,"endHours":6.080494778466288,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:33","end":"15:24","startHours":14.553057124621446,"endHours":15.400313359236963,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:35","end":"18:59","startHours":18.589338297699026,"endHours":18.989338297699025,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:47","end":"19:19","startHours":18.789338297699025,"endHours":19.318873444333722,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:32","end":"20:17","startHours":18.539338297699025,"endHours":20.289338297699025,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:01","end":"00:52","startHours":24.0112884207749,"endHours":24.858544655390414,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:05","end":"07:40","startHours":6.080494778466288,"endHours":7.66910021837038,"quality":"inauspicious"},{"name":"Śubha","start":"07:40","end":"09:15","startHours":7.66910021837038,"endHours":9.257705658274471,"quality":"auspicious"},{"name":"Roga","start":"09:15","end":"10:51","startHours":9.257705658274471,"endHours":10.846311098178564,"quality":"inauspicious"},{"name":"Udveg","start":"10:51","end":"12:26","startHours":10.846311098178564,"endHours":12.434916538082657,"quality":"inauspicious"},{"name":"Chala","start":"12:26","end":"14:01","startHours":12.434916538082657,"endHours":14.023521977986748,"quality":"neutral"},{"name":"Labha","start":"14:01","end":"15:37","startHours":14.023521977986748,"endHours":15.61212741789084,"quality":"auspicious"},{"name":"Amṛta","start":"15:37","end":"17:12","startHours":15.61212741789084,"endHours":17.200732857794932,"quality":"auspicious"},{"name":"Kāla","start":"17:12","end":"18:47","startHours":17.200732857794932,"endHours":18.789338297699025,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:47","end":"20:12","startHours":18.789338297699025,"endHours":20.200732857794932,"quality":"auspicious"},{"name":"Amṛta","start":"20:12","end":"21:37","startHours":20.200732857794932,"endHours":21.61212741789084,"quality":"auspicious"},{"name":"Kāla","start":"21:37","end":"23:01","startHours":21.61212741789084,"endHours":23.02352197798675,"quality":"inauspicious"},{"name":"Śubha","start":"23:01","end":"00:26","startHours":23.02352197798675,"endHours":24.434916538082657,"quality":"auspicious"},{"name":"Roga","start":"00:26","end":"01:51","startHours":24.434916538082657,"endHours":25.846311098178564,"quality":"inauspicious"},{"name":"Udveg","start":"01:51","end":"03:15","startHours":25.846311098178564,"endHours":27.257705658274475,"quality":"inauspicious"},{"name":"Chala","start":"03:15","end":"04:40","startHours":27.257705658274475,"endHours":28.66910021837038,"quality":"neutral"},{"name":"Labha","start":"04:40","end":"06:05","startHours":28.66910021837038,"endHours":30.08049477846629,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:05","end":"07:05","startHours":6.080494778466288,"endHours":7.080494778466288,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:05","end":"08:05","startHours":7.080494778466288,"endHours":8.080494778466289,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:05","end":"09:05","startHours":8.080494778466289,"endHours":9.080494778466289,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:05","end":"10:05","startHours":9.080494778466289,"endHours":10.080494778466289,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:05","end":"11:05","startHours":10.080494778466289,"endHours":11.080494778466289,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:05","end":"12:05","startHours":11.080494778466289,"endHours":12.080494778466289,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:05","end":"13:05","startHours":12.080494778466289,"endHours":13.080494778466289,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:05","end":"14:05","startHours":13.080494778466289,"endHours":14.080494778466289,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:05","end":"15:05","startHours":14.080494778466289,"endHours":15.080494778466289,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:05","end":"16:05","startHours":15.080494778466289,"endHours":16.08049477846629,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:05","end":"17:05","startHours":16.08049477846629,"endHours":17.08049477846629,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:05","end":"18:05","startHours":17.08049477846629,"endHours":18.08049477846629,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:05","end":"19:05","startHours":18.08049477846629,"endHours":19.08049477846629,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:05","end":"20:05","startHours":19.08049477846629,"endHours":20.08049477846629,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:05","end":"21:05","startHours":20.08049477846629,"endHours":21.08049477846629,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:05","end":"22:05","startHours":21.08049477846629,"endHours":22.08049477846629,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:05","end":"23:05","startHours":22.08049477846629,"endHours":23.08049477846629,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:05","end":"00:05","startHours":23.08049477846629,"endHours":24.08049477846629,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:05","end":"01:05","startHours":24.08049477846629,"endHours":25.08049477846629,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:05","end":"02:05","startHours":25.08049477846629,"endHours":26.08049477846629,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:05","end":"03:05","startHours":26.08049477846629,"endHours":27.08049477846629,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:05","end":"04:05","startHours":27.08049477846629,"endHours":28.08049477846629,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:05","end":"05:05","startHours":28.08049477846629,"endHours":29.08049477846629,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:05","end":"06:05","startHours":29.08049477846629,"endHours":30.08049477846629,"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":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":6.487447902990107,"eotMinutes":2.2010077150405363,"ayanamsa":23.8206}},"calendars":{"vikram_samvat":2054,"vikram_samvatsara":"Vikṛti","saka_samvat":1919,"saka_samvatsara":"Īśvara","bengali_samvat":1404,"malayalam_era":1173,"nanakshahi_year":528,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Caturthī · Vikram 2054 Vikṛti · Śaka 1919 Īśvara"},"festivals":[{"id":"ganesha-chaturthi","name":"Gaṇeśa Caturthī","name_sanskrit":"गणेश चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Gaṇeśa's birth day; 11-day festival in Maharashtra.","vrata":false,"detection":{"tithi_number":4,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":1},{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"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 September 6, 1997 CE · Phoenix, USA · Vidhyamitra","description":"September 6, 1997 CE for Phoenix, USA: Śukla Caturthī, sūryodaya 06:05, sūryāsta 18:47.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1997-09-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1997-09-06","sa":"https://sa.vidhyamitra.com/city/phoenix/1997-09-06","hi":"https://hi.vidhyamitra.com/city/phoenix/1997-09-06","x-default":"https://vidhyamitra.com/city/phoenix/1997-09-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T01:27:08.008Z","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":"2026-06-01T01:27:08.008Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T01:27:08.008Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}