{"id":"vidhyamitra:city-day:phoenix:2155-05-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2155-05-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2155-05-11","date_display":"May 11, 2155 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":2155,"month":5,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508287.770833,"kali_year":5257,"ahargana":1919822.2708,"sun":{"sidereal_longitude":23.8236,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":130.3568,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":106.5332,"elapsed_within_tithi_degrees":10.5332},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":130.3568,"elapsed_within_degrees":10.3568},"yoga":{"number":12,"name":"Dhruva","sum_longitude":154.1804},"karana":{"half_tithi_index":17,"name":"Kaulava"},"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":2155,"month":5,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2508287.770833,"ahargana":1919822.2708,"kali_year":5257,"ayanamsa_lahiri":26.0232,"grahas":{"sun":{"sidereal_longitude":24.167418999999995,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":128.84891900000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false,"latitude":2.1262},"mars":{"sidereal_longitude":144.58341900000005,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":359.934519,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":43.19221900000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":6.370719000000008,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":123.120319,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":338.5773,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":158.5773,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"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":2155,"month":5,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508287.770833,"kali_year":5257,"ahargana":1919822.2708,"sun":{"sidereal_longitude":23.8236,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":130.3568,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":106.5332,"elapsed_within_tithi_degrees":10.5332},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":130.3568,"elapsed_within_degrees":10.3568},"yoga":{"number":12,"name":"Dhruva","sum_longitude":154.1804},"karana":{"half_tithi_index":17,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.126,"elongation":106.533},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.126,"opposition_distance":73.467}},"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":"05:31","sunsetLocal":"19:18","solarNoonLocal":"12:25","dayLengthHours":13.775019962917568,"dayLengthDisplay":"13 Hours 46 Mins 30 Secs","nightLengthDisplay":"10 Hours 13 Mins 30 Secs","moonriseLocal":"12:54","moonsetLocal":"01:52","rahuKala":{"name":"Rāhu Kāla","start":"17:35","end":"19:18","startHours":17.57536599169561,"endHours":19.297243487060307,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:25","end":"14:08","startHours":12.409733505601523,"endHours":14.131611000966217,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:51","end":"17:35","startHours":15.853488496330915,"endHours":17.57536599169561,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:44","end":"09:12","startHours":8.736394848823505,"endHours":9.195562180920756,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:06","end":"06:28","startHours":6.096182689264303,"endHours":6.463516554942105,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:52","startHours":11.95056617350427,"endHours":12.868900837698774,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:41","end":"04:36","startHours":3.6855541957537286,"endHours":4.603888859948233,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:22","end":"05:31","startHours":4.374305193899607,"endHours":5.5222235241427375,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:42","end":"15:37","startHours":14.705570166087785,"endHours":15.62390483028229,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:06","end":"19:30","startHours":19.097243487060307,"endHours":19.497243487060306,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:18","end":"19:52","startHours":19.297243487060307,"endHours":19.87120265218187,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:03","end":"20:48","startHours":19.047243487060307,"endHours":20.797243487060307,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:52","startHours":23.95056617350427,"endHours":24.868900837698774,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:31","end":"07:15","startHours":5.5222235241427375,"endHours":7.244101019507434,"quality":"inauspicious"},{"name":"Chala","start":"07:15","end":"08:58","startHours":7.244101019507434,"endHours":8.96597851487213,"quality":"neutral"},{"name":"Labha","start":"08:58","end":"10:41","startHours":8.96597851487213,"endHours":10.687856010236825,"quality":"auspicious"},{"name":"Amṛta","start":"10:41","end":"12:25","startHours":10.687856010236825,"endHours":12.409733505601523,"quality":"auspicious"},{"name":"Kāla","start":"12:25","end":"14:08","startHours":12.409733505601523,"endHours":14.131611000966217,"quality":"inauspicious"},{"name":"Śubha","start":"14:08","end":"15:51","startHours":14.131611000966217,"endHours":15.853488496330915,"quality":"auspicious"},{"name":"Roga","start":"15:51","end":"17:35","startHours":15.853488496330915,"endHours":17.57536599169561,"quality":"inauspicious"},{"name":"Udveg","start":"17:35","end":"19:18","startHours":17.57536599169561,"endHours":19.297243487060307,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:18","end":"20:35","startHours":19.297243487060307,"endHours":20.575365991695612,"quality":"auspicious"},{"name":"Roga","start":"20:35","end":"21:51","startHours":20.575365991695612,"endHours":21.853488496330915,"quality":"inauspicious"},{"name":"Udveg","start":"21:51","end":"23:08","startHours":21.853488496330915,"endHours":23.131611000966217,"quality":"inauspicious"},{"name":"Chala","start":"23:08","end":"00:25","startHours":23.131611000966217,"endHours":24.409733505601523,"quality":"neutral"},{"name":"Labha","start":"00:25","end":"01:41","startHours":24.409733505601523,"endHours":25.68785601023683,"quality":"auspicious"},{"name":"Amṛta","start":"01:41","end":"02:58","startHours":25.68785601023683,"endHours":26.96597851487213,"quality":"auspicious"},{"name":"Kāla","start":"02:58","end":"04:15","startHours":26.96597851487213,"endHours":28.244101019507433,"quality":"inauspicious"},{"name":"Śubha","start":"04:15","end":"05:31","startHours":28.244101019507433,"endHours":29.52222352414274,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:31","end":"06:31","startHours":5.5222235241427375,"endHours":6.5222235241427375,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:31","end":"07:31","startHours":6.5222235241427375,"endHours":7.5222235241427375,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:31","end":"08:31","startHours":7.5222235241427375,"endHours":8.522223524142738,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:31","end":"09:31","startHours":8.522223524142738,"endHours":9.522223524142738,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:31","end":"10:31","startHours":9.522223524142738,"endHours":10.522223524142738,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:31","end":"11:31","startHours":10.522223524142738,"endHours":11.522223524142738,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:31","end":"12:31","startHours":11.522223524142738,"endHours":12.522223524142738,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:31","end":"13:31","startHours":12.522223524142738,"endHours":13.522223524142738,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:31","end":"14:31","startHours":13.522223524142738,"endHours":14.522223524142738,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:31","end":"15:31","startHours":14.522223524142738,"endHours":15.522223524142738,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:31","end":"16:31","startHours":15.522223524142738,"endHours":16.52222352414274,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:31","end":"17:31","startHours":16.52222352414274,"endHours":17.52222352414274,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:31","end":"18:31","startHours":17.52222352414274,"endHours":18.52222352414274,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:31","end":"19:31","startHours":18.52222352414274,"endHours":19.52222352414274,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:31","end":"20:31","startHours":19.52222352414274,"endHours":20.52222352414274,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:31","end":"21:31","startHours":20.52222352414274,"endHours":21.52222352414274,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:31","end":"22:31","startHours":21.52222352414274,"endHours":22.52222352414274,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:31","end":"23:31","startHours":22.52222352414274,"endHours":23.52222352414274,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:31","end":"00:31","startHours":23.52222352414274,"endHours":24.52222352414274,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:31","end":"01:31","startHours":24.52222352414274,"endHours":25.52222352414274,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:31","end":"02:31","startHours":25.52222352414274,"endHours":26.52222352414274,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:31","end":"03:31","startHours":26.52222352414274,"endHours":27.52222352414274,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:31","end":"04:31","startHours":27.52222352414274,"endHours":28.52222352414274,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:31","end":"05:31","startHours":28.52222352414274,"endHours":29.52222352414274,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":17.79002924359885,"eotMinutes":3.71198966390865,"ayanamsa":26.0232}},"calendars":{"vikram_samvat":2212,"vikram_samvatsara":"Vibhava","saka_samvat":2077,"saka_samvatsara":"Rākṣasa","bengali_samvat":1562,"malayalam_era":1331,"nanakshahi_year":686,"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 Navamī · Vikram 2212 Vibhava · Śaka 2077 Rākṣasa"},"festivals":[{"id":"sita-navami","name":"Sītā Navamī","name_sanskrit":"सीता नवमी","tradition":"Vaishnava","associated_deity":"Sītā Devī (Lakṣmī as Bhū-suta)","significance":"Devī Sītā's manifestation in Mithilā; rāmāvatāra-kalatra.","vrata":true,"detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":2,"sources":["Vālmīki Rāmāyaṇa, Bāla-Kāṇḍa 66"]},{"id":"madhva-jayanti","name":"Madhvācārya Jayantī","name_sanskrit":"मध्वाचार्य जयन्ती","tradition":"Vaishnava","associated_deity":"Madhvācārya (Dvaita)","significance":"Birth of Madhvācārya; Dvaita-pratiṣṭhāpaka. Vaiśākha Śukla 9.","vrata":false,"detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":4}],"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":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","relevance":0.5}]},"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 11, 2155 CE · Phoenix, USA · Vidhyamitra","description":"May 11, 2155 CE for Phoenix, USA: Śukla Navamī, sūryodaya 05:31, sūryāsta 19:18.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2155-05-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2155-05-11","sa":"https://sa.vidhyamitra.com/city/phoenix/2155-05-11","hi":"https://hi.vidhyamitra.com/city/phoenix/2155-05-11","x-default":"https://vidhyamitra.com/city/phoenix/2155-05-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T08:52:13.018Z","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":"2026-06-01T08:52:13.018Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T08:52:13.018Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}