{"id":"vidhyamitra:city-day:phoenix:1978-07-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1978-07-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1978-07-23","date_display":"July 23, 1978 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":1978,"month":7,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443712.770833,"kali_year":5080,"ahargana":1855247.2708,"sun":{"sidereal_longitude":95.8686,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":314.7734,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":218.9048,"elapsed_within_tithi_degrees":2.9048},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3,"moon_longitude":314.7734,"elapsed_within_degrees":8.1068},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":50.642},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1978,"month":7,"day":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2443712.770833,"ahargana":1855247.2708,"kali_year":5080,"ayanamsa_lahiri":23.5534,"grahas":{"sun":{"sidereal_longitude":96.29785900000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"moon":{"sidereal_longitude":317.061559,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false,"latitude":1.9214},"mars":{"sidereal_longitude":149.16175900000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":123.53645899999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":86.83475899999996,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"venus":{"sidereal_longitude":139.111059,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":125.897359,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":160.0715,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":340.0715,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara 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":1978,"month":7,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443712.770833,"kali_year":5080,"ahargana":1855247.2708,"sun":{"sidereal_longitude":95.8686,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":314.7734,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":218.9048,"elapsed_within_tithi_degrees":2.9048},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3,"moon_longitude":314.7734,"elapsed_within_degrees":8.1068},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":50.642},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.921,"elongation":141.095},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.921,"opposition_distance":38.905}},"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":"05:34","sunsetLocal":"19:35","solarNoonLocal":"12:34","dayLengthHours":14.019980277307262,"dayLengthDisplay":"14 Hours 01 Mins 12 Secs","nightLengthDisplay":"9 Hours 58 Mins 48 Secs","moonriseLocal":"21:35","moonsetLocal":"09:00","rahuKala":{"name":"Rāhu Kāla","start":"17:50","end":"19:35","startHours":17.831308239381002,"endHours":19.58380577404441,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:34","end":"14:20","startHours":12.57381563539078,"endHours":14.326313170054188,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"16:05","end":"17:50","startHours":16.078810704717597,"endHours":17.831308239381002,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:50","end":"09:18","startHours":8.835154228108843,"endHours":9.302486904019085,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:09","end":"06:31","startHours":6.147991341624952,"endHours":6.521857482353146,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:06","end":"13:02","startHours":12.106482959480537,"endHours":13.041148311301022,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:42","end":"04:38","startHours":3.6944947930961805,"endHours":4.629160144916664,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:24","end":"05:34","startHours":4.395493806961543,"endHours":5.563825496737149,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:55","end":"15:51","startHours":14.910479014941991,"endHours":15.845144366762476,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:23","end":"19:47","startHours":19.38380577404441,"endHours":19.78380577404441,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:35","end":"20:10","startHours":19.58380577404441,"endHours":20.167971618932214,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:20","end":"21:05","startHours":19.33380577404441,"endHours":21.08380577404441,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:06","end":"01:02","startHours":24.106482959480537,"endHours":25.041148311301022,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:34","end":"07:19","startHours":5.563825496737149,"endHours":7.3163230314005565,"quality":"inauspicious"},{"name":"Chala","start":"07:19","end":"09:04","startHours":7.3163230314005565,"endHours":9.068820566063964,"quality":"neutral"},{"name":"Labha","start":"09:04","end":"10:49","startHours":9.068820566063964,"endHours":10.821318100727371,"quality":"auspicious"},{"name":"Amṛta","start":"10:49","end":"12:34","startHours":10.821318100727371,"endHours":12.57381563539078,"quality":"auspicious"},{"name":"Kāla","start":"12:34","end":"14:20","startHours":12.57381563539078,"endHours":14.326313170054188,"quality":"inauspicious"},{"name":"Śubha","start":"14:20","end":"16:05","startHours":14.326313170054188,"endHours":16.078810704717597,"quality":"auspicious"},{"name":"Roga","start":"16:05","end":"17:50","startHours":16.078810704717597,"endHours":17.831308239381002,"quality":"inauspicious"},{"name":"Udveg","start":"17:50","end":"19:35","startHours":17.831308239381002,"endHours":19.58380577404441,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:35","end":"20:50","startHours":19.58380577404441,"endHours":20.831308239381002,"quality":"auspicious"},{"name":"Roga","start":"20:50","end":"22:05","startHours":20.831308239381002,"endHours":22.078810704717597,"quality":"inauspicious"},{"name":"Udveg","start":"22:05","end":"23:20","startHours":22.078810704717597,"endHours":23.32631317005419,"quality":"inauspicious"},{"name":"Chala","start":"23:20","end":"00:34","startHours":23.32631317005419,"endHours":24.57381563539078,"quality":"neutral"},{"name":"Labha","start":"00:34","end":"01:49","startHours":24.57381563539078,"endHours":25.82131810072737,"quality":"auspicious"},{"name":"Amṛta","start":"01:49","end":"03:04","startHours":25.82131810072737,"endHours":27.068820566063962,"quality":"auspicious"},{"name":"Kāla","start":"03:04","end":"04:19","startHours":27.068820566063962,"endHours":28.316323031400557,"quality":"inauspicious"},{"name":"Śubha","start":"04:19","end":"05:34","startHours":28.316323031400557,"endHours":29.56382549673715,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:34","end":"06:34","startHours":5.563825496737149,"endHours":6.563825496737149,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:34","end":"07:34","startHours":6.563825496737149,"endHours":7.563825496737149,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:34","end":"08:34","startHours":7.563825496737149,"endHours":8.563825496737149,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:34","end":"09:34","startHours":8.563825496737149,"endHours":9.563825496737149,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:34","end":"10:34","startHours":9.563825496737149,"endHours":10.563825496737149,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:34","end":"11:34","startHours":10.563825496737149,"endHours":11.563825496737149,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:34","end":"12:34","startHours":11.563825496737149,"endHours":12.563825496737149,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:34","end":"13:34","startHours":12.563825496737149,"endHours":13.563825496737149,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:34","end":"14:34","startHours":13.563825496737149,"endHours":14.563825496737149,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:34","end":"15:34","startHours":14.563825496737149,"endHours":15.563825496737149,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:34","end":"16:34","startHours":15.563825496737149,"endHours":16.56382549673715,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:34","end":"17:34","startHours":16.56382549673715,"endHours":17.56382549673715,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:34","end":"18:34","startHours":17.56382549673715,"endHours":18.56382549673715,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:34","end":"19:34","startHours":18.56382549673715,"endHours":19.56382549673715,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:34","end":"20:34","startHours":19.56382549673715,"endHours":20.56382549673715,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:34","end":"21:34","startHours":20.56382549673715,"endHours":21.56382549673715,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:34","end":"22:34","startHours":21.56382549673715,"endHours":22.56382549673715,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:34","end":"23:34","startHours":22.56382549673715,"endHours":23.56382549673715,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:34","end":"00:34","startHours":23.56382549673715,"endHours":24.56382549673715,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:34","end":"01:34","startHours":24.56382549673715,"endHours":25.56382549673715,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:34","end":"02:34","startHours":25.56382549673715,"endHours":26.56382549673715,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:34","end":"03:34","startHours":26.56382549673715,"endHours":27.56382549673715,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:34","end":"04:34","startHours":27.56382549673715,"endHours":28.56382549673715,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:34","end":"05:34","startHours":28.56382549673715,"endHours":29.56382549673715,"planetary_lord":"Jupiter"}],"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","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":20.179446504500717,"eotMinutes":-6.132938123446804,"ayanamsa":23.5534}},"calendars":{"vikram_samvat":2035,"vikram_samvatsara":"Prajāpati","saka_samvat":1900,"saka_samvatsara":"Kālayukta","bengali_samvat":1385,"malayalam_era":1154,"nanakshahi_year":509,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Śrāvaṇa","lunar_month_amanta":"Āṣāḍha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Kṛṣṇa Caturthī · Vikram 2035 Prajāpati · Śaka 1900 Kālayukta"},"festivals":[{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 July 23, 1978 CE · Phoenix, USA · Vidhyamitra","description":"July 23, 1978 CE for Phoenix, USA: Kṛṣṇa Caturthī, sūryodaya 05:34, sūryāsta 19:35.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1978-07-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1978-07-23","sa":"https://sa.vidhyamitra.com/city/phoenix/1978-07-23","hi":"https://hi.vidhyamitra.com/city/phoenix/1978-07-23","x-default":"https://vidhyamitra.com/city/phoenix/1978-07-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T01:53:57.381Z","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":"2026-05-31T01:53:57.381Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T01:53:57.381Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}