{"id":"vidhyamitra:city-day:phoenix:2091-02-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2091-02-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2091-02-13","date_display":"February 13, 2091 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":2091,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2484825.770833,"kali_year":5192,"ahargana":1896360.2708,"sun":{"sidereal_longitude":299.3124,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":234.7852,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":295.4728,"elapsed_within_tithi_degrees":7.4728},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":234.7852,"elapsed_within_degrees":8.1186},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":174.0977},"karana":{"half_tithi_index":49,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2091,"month":2,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2484825.770833,"ahargana":1896360.2708,"kali_year":5192,"ayanamsa_lahiri":25.1259,"grahas":{"sun":{"sidereal_longitude":299.44054000000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":236.56583999999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false,"latitude":4.4935},"mars":{"sidereal_longitude":147.34753999999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":303.80934,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":256.69694000000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":258.34284,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":52.64123999999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":141.7069,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":321.7069,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva 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":2091,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2484825.770833,"kali_year":5192,"ahargana":1896360.2708,"sun":{"sidereal_longitude":299.3124,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":234.7852,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":295.4728,"elapsed_within_tithi_degrees":7.4728},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":234.7852,"elapsed_within_degrees":8.1186},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":174.0977},"karana":{"half_tithi_index":49,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.493,"elongation":64.527},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.493,"opposition_distance":115.473}},"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":"07:15","sunsetLocal":"18:11","solarNoonLocal":"12:43","dayLengthHours":10.93746695023173,"dayLengthDisplay":"10 Hours 56 Mins 15 Secs","nightLengthDisplay":"13 Hours 03 Mins 45 Secs","moonriseLocal":"03:34","moonsetLocal":"13:29","rahuKala":{"name":"Rāhu Kāla","start":"15:27","end":"16:49","startHours":15.449292158568298,"endHours":16.816475527347265,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:59","end":"11:21","startHours":9.980558683452433,"endHours":11.3477420522314,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:43","end":"14:05","startHours":12.714925421010367,"endHours":14.082108789789332,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:48","end":"10:10","startHours":9.798267567615238,"endHours":10.16284979928963,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:42","end":"08:00","startHours":7.70191973548749,"endHours":7.993585520827002,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:21","end":"13:05","startHours":12.350343189335977,"endHours":13.079507652684757,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:47","end":"06:31","startHours":5.787863019196937,"endHours":6.517027482545719,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:20","end":"07:15","startHours":6.3347363667085235,"endHours":7.246191945894501,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:32","end":"15:16","startHours":14.537836579382322,"endHours":15.267001042731104,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:59","end":"18:23","startHours":17.983658896126233,"endHours":18.38365889612623,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:11","end":"18:38","startHours":18.183658896126232,"endHours":18.63938668571922,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:56","end":"19:41","startHours":17.933658896126232,"endHours":19.683658896126232,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:21","end":"01:05","startHours":24.350343189335977,"endHours":25.079507652684757,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:15","end":"08:37","startHours":7.246191945894501,"endHours":8.613375314673467,"quality":"inauspicious"},{"name":"Udveg","start":"08:37","end":"09:59","startHours":8.613375314673467,"endHours":9.980558683452433,"quality":"inauspicious"},{"name":"Chala","start":"09:59","end":"11:21","startHours":9.980558683452433,"endHours":11.3477420522314,"quality":"neutral"},{"name":"Labha","start":"11:21","end":"12:43","startHours":11.3477420522314,"endHours":12.714925421010367,"quality":"auspicious"},{"name":"Amṛta","start":"12:43","end":"14:05","startHours":12.714925421010367,"endHours":14.082108789789332,"quality":"auspicious"},{"name":"Kāla","start":"14:05","end":"15:27","startHours":14.082108789789332,"endHours":15.449292158568298,"quality":"inauspicious"},{"name":"Śubha","start":"15:27","end":"16:49","startHours":15.449292158568298,"endHours":16.816475527347265,"quality":"auspicious"},{"name":"Roga","start":"16:49","end":"18:11","startHours":16.816475527347265,"endHours":18.183658896126232,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:11","end":"19:49","startHours":18.183658896126232,"endHours":19.816475527347265,"quality":"inauspicious"},{"name":"Śubha","start":"19:49","end":"21:27","startHours":19.816475527347265,"endHours":21.449292158568298,"quality":"auspicious"},{"name":"Roga","start":"21:27","end":"23:05","startHours":21.449292158568298,"endHours":23.082108789789334,"quality":"inauspicious"},{"name":"Udveg","start":"23:05","end":"00:43","startHours":23.082108789789334,"endHours":24.714925421010367,"quality":"inauspicious"},{"name":"Chala","start":"00:43","end":"02:21","startHours":24.714925421010367,"endHours":26.3477420522314,"quality":"neutral"},{"name":"Labha","start":"02:21","end":"03:59","startHours":26.3477420522314,"endHours":27.980558683452436,"quality":"auspicious"},{"name":"Amṛta","start":"03:59","end":"05:37","startHours":27.980558683452436,"endHours":29.61337531467347,"quality":"auspicious"},{"name":"Kāla","start":"05:37","end":"07:15","startHours":29.61337531467347,"endHours":31.246191945894502,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:15","end":"08:15","startHours":7.246191945894501,"endHours":8.246191945894502,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:15","end":"09:15","startHours":8.246191945894502,"endHours":9.246191945894502,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:15","end":"10:15","startHours":9.246191945894502,"endHours":10.246191945894502,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:15","end":"11:15","startHours":10.246191945894502,"endHours":11.246191945894502,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:15","end":"12:15","startHours":11.246191945894502,"endHours":12.246191945894502,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:15","end":"13:15","startHours":12.246191945894502,"endHours":13.246191945894502,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:15","end":"14:15","startHours":13.246191945894502,"endHours":14.246191945894502,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:15","end":"15:15","startHours":14.246191945894502,"endHours":15.246191945894502,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:15","end":"16:15","startHours":15.246191945894502,"endHours":16.246191945894502,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:15","end":"17:15","startHours":16.246191945894502,"endHours":17.246191945894502,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:15","end":"18:15","startHours":17.246191945894502,"endHours":18.246191945894502,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:15","end":"19:15","startHours":18.246191945894502,"endHours":19.246191945894502,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:15","end":"20:15","startHours":19.246191945894502,"endHours":20.246191945894502,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:15","end":"21:15","startHours":20.246191945894502,"endHours":21.246191945894502,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:15","end":"22:15","startHours":21.246191945894502,"endHours":22.246191945894502,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:15","end":"23:15","startHours":22.246191945894502,"endHours":23.246191945894502,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:15","end":"00:15","startHours":23.246191945894502,"endHours":24.246191945894502,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:15","end":"01:15","startHours":24.246191945894502,"endHours":25.246191945894502,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:15","end":"02:15","startHours":25.246191945894502,"endHours":26.246191945894502,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:15","end":"03:15","startHours":26.246191945894502,"endHours":27.246191945894502,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:15","end":"04:15","startHours":27.246191945894502,"endHours":28.246191945894502,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:15","end":"05:15","startHours":28.246191945894502,"endHours":29.246191945894502,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:15","end":"06:15","startHours":29.246191945894502,"endHours":30.246191945894502,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:15","end":"07:15","startHours":30.246191945894502,"endHours":31.246191945894502,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"North-East","rahuVasa":"North","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-13.3317383290643,"eotMinutes":-14.599525260622107,"ayanamsa":25.1259}},"calendars":{"vikram_samvat":2148,"vikram_samvatsara":"Raktākṣī","saka_samvat":2013,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1498,"malayalam_era":1267,"nanakshahi_year":622,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Daśamī · Vikram 2148 Raktākṣī · Śaka 2013 Virodhakṛt"},"festivals":[{"id":"kumbha-sankranti","name":"Kumbha Saṅkrānti","name_sanskrit":"कुम्भ सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aquarius; Kumbha-māsa begins.","vrata":false,"detection":{"sun_rashi_ingress":"Kumbha"},"precedence":5}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","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 February 13, 2091 CE · Phoenix, USA · Vidhyamitra","description":"February 13, 2091 CE for Phoenix, USA: Kṛṣṇa Daśamī, sūryodaya 07:15, sūryāsta 18:11.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2091-02-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2091-02-13","sa":"https://sa.vidhyamitra.com/city/phoenix/2091-02-13","hi":"https://hi.vidhyamitra.com/city/phoenix/2091-02-13","x-default":"https://vidhyamitra.com/city/phoenix/2091-02-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T08:47:14.731Z","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":"2026-06-01T08:47:14.731Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T08:47:14.731Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}