{"id":"vidhyamitra:city-day:phoenix:2013-02-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2013-02-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2013-02-13","date_display":"February 13, 2013 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2013,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456336.770833,"kali_year":5114,"ahargana":1867871.2708,"sun":{"sidereal_longitude":300.5148,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":336.1748,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":35.66,"elapsed_within_tithi_degrees":11.66},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1,"moon_longitude":336.1748,"elapsed_within_degrees":2.8415},"yoga":{"number":21,"name":"Siddha","sum_longitude":276.6896},"karana":{"half_tithi_index":5,"name":"Gara"},"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":2013,"month":2,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456336.770833,"ahargana":1867871.2708,"kali_year":5114,"ayanamsa_lahiri":24.0363,"grahas":{"sun":{"sidereal_longitude":300.456229,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":335.371629,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false,"latitude":3.6857},"mars":{"sidereal_longitude":314.470229,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":317.60772900000006,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":42.18172900000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":289.48272900000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":197.20142899999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":211.1912,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":31.1912,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2013,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456336.770833,"kali_year":5114,"ahargana":1867871.2708,"sun":{"sidereal_longitude":300.5148,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":336.1748,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":35.66,"elapsed_within_tithi_degrees":11.66},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1,"moon_longitude":336.1748,"elapsed_within_degrees":2.8415},"yoga":{"number":21,"name":"Siddha","sum_longitude":276.6896},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.686,"elongation":35.66},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.686,"opposition_distance":144.34}},"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":10.935169491805501,"dayLengthDisplay":"10 Hours 56 Mins 07 Secs","nightLengthDisplay":"13 Hours 03 Mins 53 Secs","moonriseLocal":"09:00","moonsetLocal":"21:05","rahuKala":{"name":"Rāhu Kāla","start":"12:43","end":"14:05","startHours":12.714925421010367,"endHours":14.081821607486056,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:37","end":"09:59","startHours":8.614236861583304,"endHours":9.981133048058993,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:21","end":"12:43","startHours":11.34802923453468,"endHours":12.714925421010367,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:48","end":"10:10","startHours":9.798880223195567,"endHours":10.163385872922419,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:42","end":"08:00","startHours":7.70297273726618,"endHours":7.994577257047659,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:21","end":"13:05","startHours":12.350419771283518,"endHours":13.079431070737217,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:47","end":"06:31","startHours":5.789318076200217,"endHours":6.518329375653917,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:20","end":"07:15","startHours":6.336076550790493,"endHours":7.247340675107617,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:32","end":"15:16","startHours":14.537453669644618,"endHours":15.266464969098319,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:59","end":"18:23","startHours":17.98251016691312,"endHours":18.382510166913118,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:11","end":"18:38","startHours":18.18251016691312,"endHours":18.638142229071683,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:56","end":"19:41","startHours":17.93251016691312,"endHours":19.68251016691312,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:21","end":"01:05","startHours":24.350419771283516,"endHours":25.07943107073722,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:15","end":"08:37","startHours":7.247340675107617,"endHours":8.614236861583304,"quality":"auspicious"},{"name":"Amṛta","start":"08:37","end":"09:59","startHours":8.614236861583304,"endHours":9.981133048058993,"quality":"auspicious"},{"name":"Kāla","start":"09:59","end":"11:21","startHours":9.981133048058993,"endHours":11.34802923453468,"quality":"inauspicious"},{"name":"Śubha","start":"11:21","end":"12:43","startHours":11.34802923453468,"endHours":12.714925421010367,"quality":"auspicious"},{"name":"Roga","start":"12:43","end":"14:05","startHours":12.714925421010367,"endHours":14.081821607486056,"quality":"inauspicious"},{"name":"Udveg","start":"14:05","end":"15:27","startHours":14.081821607486056,"endHours":15.448717793961743,"quality":"inauspicious"},{"name":"Chala","start":"15:27","end":"16:49","startHours":15.448717793961743,"endHours":16.815613980437433,"quality":"neutral"},{"name":"Labha","start":"16:49","end":"18:11","startHours":16.815613980437433,"endHours":18.18251016691312,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:11","end":"19:49","startHours":18.18251016691312,"endHours":19.81561398043743,"quality":"inauspicious"},{"name":"Chala","start":"19:49","end":"21:27","startHours":19.81561398043743,"endHours":21.448717793961745,"quality":"neutral"},{"name":"Labha","start":"21:27","end":"23:05","startHours":21.448717793961745,"endHours":23.081821607486056,"quality":"auspicious"},{"name":"Amṛta","start":"23:05","end":"00:43","startHours":23.081821607486056,"endHours":24.714925421010367,"quality":"auspicious"},{"name":"Kāla","start":"00:43","end":"02:21","startHours":24.714925421010367,"endHours":26.34802923453468,"quality":"inauspicious"},{"name":"Śubha","start":"02:21","end":"03:59","startHours":26.34802923453468,"endHours":27.981133048058993,"quality":"auspicious"},{"name":"Roga","start":"03:59","end":"05:37","startHours":27.981133048058993,"endHours":29.614236861583304,"quality":"inauspicious"},{"name":"Udveg","start":"05:37","end":"07:15","startHours":29.614236861583304,"endHours":31.247340675107615,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:15","end":"08:15","startHours":7.247340675107617,"endHours":8.247340675107617,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:15","end":"09:15","startHours":8.247340675107617,"endHours":9.247340675107617,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:15","end":"10:15","startHours":9.247340675107617,"endHours":10.247340675107617,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:15","end":"11:15","startHours":10.247340675107617,"endHours":11.247340675107617,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:15","end":"12:15","startHours":11.247340675107617,"endHours":12.247340675107617,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:15","end":"13:15","startHours":12.247340675107617,"endHours":13.247340675107617,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:15","end":"14:15","startHours":13.247340675107617,"endHours":14.247340675107617,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:15","end":"15:15","startHours":14.247340675107617,"endHours":15.247340675107617,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:15","end":"16:15","startHours":15.247340675107617,"endHours":16.247340675107615,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:15","end":"17:15","startHours":16.247340675107615,"endHours":17.247340675107615,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:15","end":"18:15","startHours":17.247340675107615,"endHours":18.247340675107615,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:15","end":"19:15","startHours":18.247340675107615,"endHours":19.247340675107615,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:15","end":"20:15","startHours":19.247340675107615,"endHours":20.247340675107615,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:15","end":"21:15","startHours":20.247340675107615,"endHours":21.247340675107615,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:15","end":"22:15","startHours":21.247340675107615,"endHours":22.247340675107615,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:15","end":"23:15","startHours":22.247340675107615,"endHours":23.247340675107615,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:15","end":"00:15","startHours":23.247340675107615,"endHours":24.247340675107615,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:15","end":"01:15","startHours":24.247340675107615,"endHours":25.247340675107615,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:15","end":"02:15","startHours":25.247340675107615,"endHours":26.247340675107615,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:15","end":"03:15","startHours":26.247340675107615,"endHours":27.247340675107615,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:15","end":"04:15","startHours":27.247340675107615,"endHours":28.247340675107615,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:15","end":"05:15","startHours":28.247340675107615,"endHours":29.247340675107615,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:15","end":"06:15","startHours":29.247340675107615,"endHours":30.247340675107615,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:15","end":"07:15","startHours":30.247340675107615,"endHours":31.247340675107615,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"South-West","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-13.356343808115751,"eotMinutes":-14.599525260622107,"ayanamsa":24.0363}},"calendars":{"vikram_samvat":2070,"vikram_samvatsara":"Parābhava","saka_samvat":1935,"saka_samvatsara":"Vijaya","bengali_samvat":1420,"malayalam_era":1189,"nanakshahi_year":544,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Tṛtīyā · Vikram 2070 Parābhava · Śaka 1935 Vijaya"},"festivals":[],"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":[]},"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, 2013 CE · Phoenix, USA · Vidhyamitra","description":"February 13, 2013 CE for Phoenix, USA: Śukla Tṛtīyā, sūryodaya 07:15, sūryāsta 18:11.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2013-02-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2013-02-13","sa":"https://sa.vidhyamitra.com/city/phoenix/2013-02-13","hi":"https://hi.vidhyamitra.com/city/phoenix/2013-02-13","x-default":"https://vidhyamitra.com/city/phoenix/2013-02-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-22T00:41:38.034Z","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":"2026-09-22T00:41:38.034Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-22T00:41:38.034Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}