{"id":"vidhyamitra:city-day:phoenix:1997-05-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1997-05-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1997-05-10","date_display":"May 10, 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":5,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450578.770833,"kali_year":5099,"ahargana":1862113.2708,"sun":{"sidereal_longitude":25.6342,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":66.6077,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":40.9735,"elapsed_within_tithi_degrees":4.9735},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":66.6077,"elapsed_within_degrees":13.2744},"yoga":{"number":7,"name":"Sukarma","sum_longitude":92.2419},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"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":5,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450578.770833,"ahargana":1862113.2708,"kali_year":5099,"ayanamsa_lahiri":23.816,"grahas":{"sun":{"sidereal_longitude":25.616327000000013,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":65.490227,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false,"latitude":-4.4999},"mars":{"sidereal_longitude":143.819727,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":5.740627000000018,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":296.676327,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":35.407127,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":351.264827,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":156.2778,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":336.2778,"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":1997,"month":5,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450578.770833,"kali_year":5099,"ahargana":1862113.2708,"sun":{"sidereal_longitude":25.6342,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":66.6077,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":40.9735,"elapsed_within_tithi_degrees":4.9735},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":66.6077,"elapsed_within_degrees":13.2744},"yoga":{"number":7,"name":"Sukarma","sum_longitude":92.2419},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.5,"elongation":40.974},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.5,"opposition_distance":139.026}},"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":"05:32","sunsetLocal":"19:17","solarNoonLocal":"12:25","dayLengthHours":13.754493369621526,"dayLengthDisplay":"13 Hours 45 Mins 16 Secs","nightLengthDisplay":"10 Hours 14 Mins 44 Secs","moonriseLocal":"07:54","moonsetLocal":"22:14","rahuKala":{"name":"Rāhu Kāla","start":"08:58","end":"10:41","startHours":8.971699560527062,"endHours":10.691011231729753,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:08","end":"15:51","startHours":14.129634574135133,"endHours":15.848946245337824,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:32","end":"07:15","startHours":5.53307621812168,"endHours":7.252387889324371,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:45","end":"09:12","startHours":8.742458004366704,"endHours":9.20094111668742,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:06","end":"06:28","startHours":6.106180108522577,"endHours":6.472966598379151,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:52","startHours":11.951839790611725,"endHours":12.86880601525316,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:42","end":"04:37","startHours":3.69914376883881,"endHours":4.616109993480245,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:23","end":"05:32","startHours":4.386868437319887,"endHours":5.53307621812168,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:42","end":"15:37","startHours":14.702738464536031,"endHours":15.619704689177466,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:05","end":"19:29","startHours":19.087569587743207,"endHours":19.487569587743206,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:17","end":"19:52","startHours":19.287569587743207,"endHours":19.860673478144104,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:02","end":"20:47","startHours":19.037569587743207,"endHours":20.787569587743207,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:52","startHours":23.951839790611725,"endHours":24.86880601525316,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:32","end":"07:15","startHours":5.53307621812168,"endHours":7.252387889324371,"quality":"inauspicious"},{"name":"Śubha","start":"07:15","end":"08:58","startHours":7.252387889324371,"endHours":8.971699560527062,"quality":"auspicious"},{"name":"Roga","start":"08:58","end":"10:41","startHours":8.971699560527062,"endHours":10.691011231729753,"quality":"inauspicious"},{"name":"Udveg","start":"10:41","end":"12:25","startHours":10.691011231729753,"endHours":12.410322902932442,"quality":"inauspicious"},{"name":"Chala","start":"12:25","end":"14:08","startHours":12.410322902932442,"endHours":14.129634574135133,"quality":"neutral"},{"name":"Labha","start":"14:08","end":"15:51","startHours":14.129634574135133,"endHours":15.848946245337824,"quality":"auspicious"},{"name":"Amṛta","start":"15:51","end":"17:34","startHours":15.848946245337824,"endHours":17.568257916540517,"quality":"auspicious"},{"name":"Kāla","start":"17:34","end":"19:17","startHours":17.568257916540517,"endHours":19.287569587743207,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:17","end":"20:34","startHours":19.287569587743207,"endHours":20.568257916540517,"quality":"auspicious"},{"name":"Amṛta","start":"20:34","end":"21:51","startHours":20.568257916540517,"endHours":21.848946245337824,"quality":"auspicious"},{"name":"Kāla","start":"21:51","end":"23:08","startHours":21.848946245337824,"endHours":23.129634574135135,"quality":"inauspicious"},{"name":"Śubha","start":"23:08","end":"00:25","startHours":23.129634574135135,"endHours":24.410322902932442,"quality":"auspicious"},{"name":"Roga","start":"00:25","end":"01:41","startHours":24.410322902932442,"endHours":25.691011231729753,"quality":"inauspicious"},{"name":"Udveg","start":"01:41","end":"02:58","startHours":25.691011231729753,"endHours":26.971699560527064,"quality":"inauspicious"},{"name":"Chala","start":"02:58","end":"04:15","startHours":26.971699560527064,"endHours":28.25238788932437,"quality":"neutral"},{"name":"Labha","start":"04:15","end":"05:32","startHours":28.25238788932437,"endHours":29.53307621812168,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:32","end":"06:32","startHours":5.53307621812168,"endHours":6.53307621812168,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:32","end":"07:32","startHours":6.53307621812168,"endHours":7.53307621812168,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:32","end":"08:32","startHours":7.53307621812168,"endHours":8.53307621812168,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:32","end":"09:32","startHours":8.53307621812168,"endHours":9.53307621812168,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:32","end":"10:32","startHours":9.53307621812168,"endHours":10.53307621812168,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:32","end":"11:32","startHours":10.53307621812168,"endHours":11.53307621812168,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:32","end":"12:32","startHours":11.53307621812168,"endHours":12.53307621812168,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:32","end":"13:32","startHours":12.53307621812168,"endHours":13.53307621812168,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:32","end":"14:32","startHours":13.53307621812168,"endHours":14.53307621812168,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:32","end":"15:32","startHours":14.53307621812168,"endHours":15.53307621812168,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:32","end":"16:32","startHours":15.53307621812168,"endHours":16.53307621812168,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:32","end":"17:32","startHours":16.53307621812168,"endHours":17.53307621812168,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:32","end":"18:32","startHours":17.53307621812168,"endHours":18.53307621812168,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:32","end":"19:32","startHours":18.53307621812168,"endHours":19.53307621812168,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:32","end":"20:32","startHours":19.53307621812168,"endHours":20.53307621812168,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:32","end":"21:32","startHours":20.53307621812168,"endHours":21.53307621812168,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:32","end":"22:32","startHours":21.53307621812168,"endHours":22.53307621812168,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:32","end":"23:32","startHours":22.53307621812168,"endHours":23.53307621812168,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:32","end":"00:32","startHours":23.53307621812168,"endHours":24.53307621812168,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:32","end":"01:32","startHours":24.53307621812168,"endHours":25.53307621812168,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:32","end":"02:32","startHours":25.53307621812168,"endHours":26.53307621812168,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:32","end":"03:32","startHours":26.53307621812168,"endHours":27.53307621812168,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:32","end":"04:32","startHours":27.53307621812168,"endHours":28.53307621812168,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:32","end":"05:32","startHours":28.53307621812168,"endHours":29.53307621812168,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Ānanda","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":17.585751274158017,"eotMinutes":3.6766258240534686,"ayanamsa":23.816}},"calendars":{"vikram_samvat":2054,"vikram_samvatsara":"Vikṛti","saka_samvat":1919,"saka_samvatsara":"Īśvara","bengali_samvat":1404,"malayalam_era":1173,"nanakshahi_year":528,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Caturthī · Vikram 2054 Vikṛti · Śaka 1919 Īśvara"},"festivals":[{"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 May 10, 1997 CE · Phoenix, USA · Vidhyamitra","description":"May 10, 1997 CE for Phoenix, USA: Śukla Caturthī, sūryodaya 05:32, sūryāsta 19:17.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1997-05-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1997-05-10","sa":"https://sa.vidhyamitra.com/city/phoenix/1997-05-10","hi":"https://hi.vidhyamitra.com/city/phoenix/1997-05-10","x-default":"https://vidhyamitra.com/city/phoenix/1997-05-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T14:51:06.631Z","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":"2026-05-31T14:51:06.631Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T14:51:06.631Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}