{"id":"vidhyamitra:city-day:phoenix:2108-01-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2108-01-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2108-01-13","date_display":"January 13, 2108 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":2108,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2491002.770833,"kali_year":5209,"ahargana":1902537.2708,"sun":{"sidereal_longitude":266.162,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":266.2329,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":0.071,"elapsed_within_tithi_degrees":0.071},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4,"moon_longitude":266.2329,"elapsed_within_degrees":12.8996},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":172.3949},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2108,"month":1,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2491002.770833,"ahargana":1902537.2708,"kali_year":5209,"ayanamsa_lahiri":25.3621,"grahas":{"sun":{"sidereal_longitude":266.565333,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":264.9624329999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false,"latitude":4.4977},"mars":{"sidereal_longitude":163.07283299999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":273.792233,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":45.538032999999984,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":306.894133,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":263.88223300000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":174.4197,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":354.4197,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","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":2108,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2491002.770833,"kali_year":5209,"ahargana":1902537.2708,"sun":{"sidereal_longitude":266.162,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":266.2329,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":0.071,"elapsed_within_tithi_degrees":0.071},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4,"moon_longitude":266.2329,"elapsed_within_degrees":12.8996},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":172.3949},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.498,"elongation":0.071},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.498,"opposition_distance":179.929}},"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":"07:33","sunsetLocal":"17:41","solarNoonLocal":"12:37","dayLengthHours":10.121010252915589,"dayLengthDisplay":"10 Hours 07 Mins 16 Secs","nightLengthDisplay":"13 Hours 52 Mins 44 Secs","moonriseLocal":"07:29","moonsetLocal":"17:32","rahuKala":{"name":"Rāhu Kāla","start":"11:21","end":"12:37","startHours":11.350405909908444,"endHours":12.615532191522892,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:09","end":"16:25","startHours":15.14578475475179,"endHours":16.410911036366237,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:49","end":"10:05","startHours":8.820153346679547,"endHours":10.085279628293996,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:55","end":"10:15","startHours":9.916596124078735,"endHours":10.253963132509256,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:59","end":"08:15","startHours":7.976735825603248,"endHours":8.246629432347664,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:17","end":"12:57","startHours":12.278165183092373,"endHours":12.95289919995341,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:12","end":"06:53","startHours":6.20555903134302,"endHours":6.8802930482040585,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:43","end":"07:33","startHours":6.711609543988799,"endHours":7.555027065065098,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:18","end":"14:59","startHours":14.30236723367549,"endHours":14.97710125053653,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:29","end":"17:53","startHours":17.476037317980687,"endHours":17.876037317980686,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:41","end":"18:06","startHours":17.676037317980686,"endHours":18.097746078518835,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:26","end":"19:11","startHours":17.426037317980686,"endHours":19.176037317980686,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:17","end":"00:57","startHours":24.278165183092373,"endHours":24.95289919995341,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:33","end":"08:49","startHours":7.555027065065098,"endHours":8.820153346679547,"quality":"neutral"},{"name":"Labha","start":"08:49","end":"10:05","startHours":8.820153346679547,"endHours":10.085279628293996,"quality":"auspicious"},{"name":"Amṛta","start":"10:05","end":"11:21","startHours":10.085279628293996,"endHours":11.350405909908444,"quality":"auspicious"},{"name":"Kāla","start":"11:21","end":"12:37","startHours":11.350405909908444,"endHours":12.615532191522892,"quality":"inauspicious"},{"name":"Śubha","start":"12:37","end":"13:53","startHours":12.615532191522892,"endHours":13.880658473137341,"quality":"auspicious"},{"name":"Roga","start":"13:53","end":"15:09","startHours":13.880658473137341,"endHours":15.14578475475179,"quality":"inauspicious"},{"name":"Udveg","start":"15:09","end":"16:25","startHours":15.14578475475179,"endHours":16.410911036366237,"quality":"inauspicious"},{"name":"Chala","start":"16:25","end":"17:41","startHours":16.410911036366237,"endHours":17.676037317980686,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:41","end":"19:25","startHours":17.676037317980686,"endHours":19.410911036366237,"quality":"inauspicious"},{"name":"Udveg","start":"19:25","end":"21:09","startHours":19.410911036366237,"endHours":21.145784754751787,"quality":"inauspicious"},{"name":"Chala","start":"21:09","end":"22:53","startHours":21.145784754751787,"endHours":22.88065847313734,"quality":"neutral"},{"name":"Labha","start":"22:53","end":"00:37","startHours":22.88065847313734,"endHours":24.61553219152289,"quality":"auspicious"},{"name":"Amṛta","start":"00:37","end":"02:21","startHours":24.61553219152289,"endHours":26.350405909908442,"quality":"auspicious"},{"name":"Kāla","start":"02:21","end":"04:05","startHours":26.350405909908442,"endHours":28.085279628293996,"quality":"inauspicious"},{"name":"Śubha","start":"04:05","end":"05:49","startHours":28.085279628293996,"endHours":29.820153346679547,"quality":"auspicious"},{"name":"Roga","start":"05:49","end":"07:33","startHours":29.820153346679547,"endHours":31.555027065065097,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:33","end":"08:33","startHours":7.555027065065098,"endHours":8.555027065065097,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:33","end":"09:33","startHours":8.555027065065097,"endHours":9.555027065065097,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:33","end":"10:33","startHours":9.555027065065097,"endHours":10.555027065065097,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:33","end":"11:33","startHours":10.555027065065097,"endHours":11.555027065065097,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:33","end":"12:33","startHours":11.555027065065097,"endHours":12.555027065065097,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:33","end":"13:33","startHours":12.555027065065097,"endHours":13.555027065065097,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:33","end":"14:33","startHours":13.555027065065097,"endHours":14.555027065065097,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:33","end":"15:33","startHours":14.555027065065097,"endHours":15.555027065065097,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:33","end":"16:33","startHours":15.555027065065097,"endHours":16.555027065065097,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:33","end":"17:33","startHours":16.555027065065097,"endHours":17.555027065065097,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:33","end":"18:33","startHours":17.555027065065097,"endHours":18.555027065065097,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:33","end":"19:33","startHours":18.555027065065097,"endHours":19.555027065065097,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:33","end":"20:33","startHours":19.555027065065097,"endHours":20.555027065065097,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:33","end":"21:33","startHours":20.555027065065097,"endHours":21.555027065065097,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:33","end":"22:33","startHours":21.555027065065097,"endHours":22.555027065065097,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:33","end":"23:33","startHours":22.555027065065097,"endHours":23.555027065065097,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:33","end":"00:33","startHours":23.555027065065097,"endHours":24.555027065065097,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:33","end":"01:33","startHours":24.555027065065097,"endHours":25.555027065065097,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:33","end":"02:33","startHours":25.555027065065097,"endHours":26.555027065065097,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:33","end":"03:33","startHours":26.555027065065097,"endHours":27.555027065065097,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:33","end":"04:33","startHours":27.555027065065097,"endHours":28.555027065065097,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:33","end":"05:33","startHours":28.555027065065097,"endHours":29.555027065065097,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:33","end":"06:33","startHours":29.555027065065097,"endHours":30.555027065065097,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:33","end":"07:33","startHours":30.555027065065097,"endHours":31.555027065065097,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-21.651462829253237,"eotMinutes":-8.635931491373626,"ayanamsa":25.3621}},"calendars":{"vikram_samvat":2165,"vikram_samvatsara":"Vṛṣa","saka_samvat":2030,"saka_samvatsara":"Vibhava","bengali_samvat":1515,"malayalam_era":1284,"nanakshahi_year":639,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Pratipada · Vikram 2165 Vṛṣa · Śaka 2030 Vibhava"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 January 13, 2108 CE · Phoenix, USA · Vidhyamitra","description":"January 13, 2108 CE for Phoenix, USA: Śukla Pratipada, sūryodaya 07:33, sūryāsta 17:41.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2108-01-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2108-01-13","sa":"https://sa.vidhyamitra.com/city/phoenix/2108-01-13","hi":"https://hi.vidhyamitra.com/city/phoenix/2108-01-13","x-default":"https://vidhyamitra.com/city/phoenix/2108-01-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T20:30:43.472Z","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":"2026-05-31T20:30:43.472Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T20:30:43.472Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}