{"id":"vidhyamitra:city-day:phoenix:1981-06-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1981-06-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-06-10","date_display":"June 10, 1981 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":1981,"month":6,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444765.770833,"kali_year":5083,"ahargana":1856300.2708,"sun":{"sidereal_longitude":55.3491,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":149.4439,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":94.0948,"elapsed_within_tithi_degrees":10.0948},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":149.4439,"elapsed_within_degrees":2.7772},"yoga":{"number":16,"name":"Siddhi","sum_longitude":204.7929},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1981,"month":6,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444765.770833,"ahargana":1856300.2708,"kali_year":5083,"ayanamsa_lahiri":23.5937,"grahas":{"sun":{"sidereal_longitude":55.49422700000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":151.84272699999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false,"latitude":3.1895},"mars":{"sidereal_longitude":40.07702699999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":71.99752699999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":157.32072700000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":72.52472699999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":159.16882699999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":104.2785,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":284.2785,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"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":1981,"month":6,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444765.770833,"kali_year":5083,"ahargana":1856300.2708,"sun":{"sidereal_longitude":55.3491,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":149.4439,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":94.0948,"elapsed_within_tithi_degrees":10.0948},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":149.4439,"elapsed_within_degrees":2.7772},"yoga":{"number":16,"name":"Siddhi","sum_longitude":204.7929},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.19,"elongation":94.095},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.19,"opposition_distance":85.905}},"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":"05:18","sunsetLocal":"19:37","solarNoonLocal":"12:27","dayLengthHours":14.321035578972293,"dayLengthDisplay":"14 Hours 19 Mins 16 Secs","nightLengthDisplay":"9 Hours 40 Mins 44 Secs","moonriseLocal":"12:45","moonsetLocal":"01:00","rahuKala":{"name":"Rāhu Kāla","start":"12:27","end":"14:15","startHours":12.458152375018077,"endHours":14.248281822389615,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:05","end":"08:53","startHours":7.087764032903468,"endHours":8.877893480275006,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:40","end":"12:27","startHours":10.668022927646541,"endHours":12.458152375018077,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:07","startHours":8.6392095539588,"endHours":9.11657740659121,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:54","end":"06:17","startHours":5.894344401322444,"endHours":6.276238683428372,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:59","end":"12:56","startHours":11.980784522385667,"endHours":12.935520227650487,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:23","end":"04:21","startHours":3.3881631750022927,"endHours":4.3428988802671125,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:06","end":"05:18","startHours":4.104214953950907,"endHours":5.297634585531932,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:51","end":"15:48","startHours":14.844991638180126,"endHours":15.799727343444946,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:25","end":"19:49","startHours":19.418670164504224,"endHours":19.818670164504223,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:37","end":"20:13","startHours":19.618670164504223,"endHours":20.215379980294735,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:22","end":"21:07","startHours":19.368670164504223,"endHours":21.118670164504223,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:59","end":"00:56","startHours":23.98078452238567,"endHours":24.935520227650485,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:18","end":"07:05","startHours":5.297634585531932,"endHours":7.087764032903468,"quality":"auspicious"},{"name":"Amṛta","start":"07:05","end":"08:53","startHours":7.087764032903468,"endHours":8.877893480275006,"quality":"auspicious"},{"name":"Kāla","start":"08:53","end":"10:40","startHours":8.877893480275006,"endHours":10.668022927646541,"quality":"inauspicious"},{"name":"Śubha","start":"10:40","end":"12:27","startHours":10.668022927646541,"endHours":12.458152375018077,"quality":"auspicious"},{"name":"Roga","start":"12:27","end":"14:15","startHours":12.458152375018077,"endHours":14.248281822389615,"quality":"inauspicious"},{"name":"Udveg","start":"14:15","end":"16:02","startHours":14.248281822389615,"endHours":16.038411269761152,"quality":"inauspicious"},{"name":"Chala","start":"16:02","end":"17:50","startHours":16.038411269761152,"endHours":17.828540717132686,"quality":"neutral"},{"name":"Labha","start":"17:50","end":"19:37","startHours":17.828540717132686,"endHours":19.618670164504223,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:37","end":"20:50","startHours":19.618670164504223,"endHours":20.828540717132686,"quality":"inauspicious"},{"name":"Chala","start":"20:50","end":"22:02","startHours":20.828540717132686,"endHours":22.03841126976115,"quality":"neutral"},{"name":"Labha","start":"22:02","end":"23:15","startHours":22.03841126976115,"endHours":23.248281822389615,"quality":"auspicious"},{"name":"Amṛta","start":"23:15","end":"00:27","startHours":23.248281822389615,"endHours":24.458152375018077,"quality":"auspicious"},{"name":"Kāla","start":"00:27","end":"01:40","startHours":24.458152375018077,"endHours":25.66802292764654,"quality":"inauspicious"},{"name":"Śubha","start":"01:40","end":"02:53","startHours":25.66802292764654,"endHours":26.877893480275006,"quality":"auspicious"},{"name":"Roga","start":"02:53","end":"04:05","startHours":26.877893480275006,"endHours":28.08776403290347,"quality":"inauspicious"},{"name":"Udveg","start":"04:05","end":"05:18","startHours":28.08776403290347,"endHours":29.29763458553193,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:18","end":"06:18","startHours":5.297634585531932,"endHours":6.297634585531932,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:18","end":"07:18","startHours":6.297634585531932,"endHours":7.297634585531932,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:18","end":"08:18","startHours":7.297634585531932,"endHours":8.297634585531931,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:18","end":"09:18","startHours":8.297634585531931,"endHours":9.297634585531931,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:18","end":"10:18","startHours":9.297634585531931,"endHours":10.297634585531931,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:18","end":"11:18","startHours":10.297634585531931,"endHours":11.297634585531931,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:18","end":"12:18","startHours":11.297634585531931,"endHours":12.297634585531931,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:18","end":"13:18","startHours":12.297634585531931,"endHours":13.297634585531931,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:18","end":"14:18","startHours":13.297634585531931,"endHours":14.297634585531931,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:18","end":"15:18","startHours":14.297634585531931,"endHours":15.297634585531931,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:18","end":"16:18","startHours":15.297634585531931,"endHours":16.29763458553193,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:18","end":"17:18","startHours":16.29763458553193,"endHours":17.29763458553193,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:18","end":"18:18","startHours":17.29763458553193,"endHours":18.29763458553193,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:18","end":"19:18","startHours":18.29763458553193,"endHours":19.29763458553193,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:18","end":"20:18","startHours":19.29763458553193,"endHours":20.29763458553193,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:18","end":"21:18","startHours":20.29763458553193,"endHours":21.29763458553193,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:18","end":"22:18","startHours":21.29763458553193,"endHours":22.29763458553193,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:18","end":"23:18","startHours":22.29763458553193,"endHours":23.29763458553193,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:18","end":"00:18","startHours":23.29763458553193,"endHours":24.29763458553193,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:18","end":"01:18","startHours":24.29763458553193,"endHours":25.29763458553193,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:18","end":"02:18","startHours":25.29763458553193,"endHours":26.29763458553193,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:18","end":"03:18","startHours":26.29763458553193,"endHours":27.29763458553193,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:18","end":"04:18","startHours":27.29763458553193,"endHours":28.29763458553193,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:18","end":"05:18","startHours":28.29763458553193,"endHours":29.29763458553193,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"South-West","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"drikRitu":"Grīṣma (Summer) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":22.988166140136716,"eotMinutes":0.8068574989153692,"ayanamsa":23.5937}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Śukla Pakṣa","solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Śukla Aṣṭamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"vrishabha-sankranti","name":"Vṛṣabha Saṅkrānti","name_sanskrit":"वृषभ सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Taurus.","vrata":false,"detection":{"sun_rashi":"Vṛṣabha"},"precedence":5}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","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 June 10, 1981 CE · Phoenix, USA · Vidhyamitra","description":"June 10, 1981 CE for Phoenix, USA: Śukla Aṣṭamī, sūryodaya 05:18, sūryāsta 19:37.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1981-06-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1981-06-10","sa":"https://sa.vidhyamitra.com/city/phoenix/1981-06-10","hi":"https://hi.vidhyamitra.com/city/phoenix/1981-06-10","x-default":"https://vidhyamitra.com/city/phoenix/1981-06-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T14:23:01.561Z","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":"2026-05-18T14:23:01.561Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T14:23:01.561Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}