{"id":"vidhyamitra:city-day:seattle:2018-02-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/seattle/2018-02-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2018-02-13","date_display":"February 13, 2018 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":2018,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458162.770833,"kali_year":5119,"ahargana":1869697.2708,"sun":{"sidereal_longitude":300.2163,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":267.4438,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":327.2276,"elapsed_within_tithi_degrees":3.2276},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1,"moon_longitude":267.4438,"elapsed_within_degrees":0.7772},"yoga":{"number":16,"name":"Siddhi","sum_longitude":207.6601},"karana":{"half_tithi_index":54,"name":"Gara"},"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":2018,"month":2,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458162.770833,"ahargana":1869697.2708,"kali_year":5119,"ayanamsa_lahiri":24.1061,"grahas":{"sun":{"sidereal_longitude":300.170263,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":268.86916299999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false,"latitude":2.0411},"mars":{"sidereal_longitude":226.28986299999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":296.480863,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":208.00906299999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":308.260663,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":251.74976300000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":114.441,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":294.441,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":2018,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458162.770833,"kali_year":5119,"ahargana":1869697.2708,"sun":{"sidereal_longitude":300.2163,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":267.4438,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":327.2276,"elapsed_within_tithi_degrees":3.2276},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1,"moon_longitude":267.4438,"elapsed_within_degrees":0.7772},"yoga":{"number":16,"name":"Siddhi","sum_longitude":207.6601},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.041,"elongation":32.772},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.041,"opposition_distance":147.228}},"eclipse_window_40days":[{"offset_days":3,"type":"solar","occurs":true,"moon_latitude":-0.855,"elongation":1.98}]},"city":{"slug":"seattle","name":"Seattle, USA","lat":47.6062,"lon":-122.3321,"tz_offset_hours":-8,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"seattle","name":"Seattle, USA","lat":47.6062,"lon":-122.3321,"tz_offset_hours":-8,"country":"US","tier":"diaspora"},"sunriseLocal":"07:19","sunsetLocal":"17:29","solarNoonLocal":"12:24","dayLengthHours":10.153523953011314,"dayLengthDisplay":"10 Hours 09 Mins 13 Secs","nightLengthDisplay":"13 Hours 50 Mins 47 Secs","moonriseLocal":"05:57","moonsetLocal":"14:41","rahuKala":{"name":"Rāhu Kāla","start":"14:56","end":"16:12","startHours":14.93717974259653,"endHours":16.206370236722947,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:52","end":"11:08","startHours":9.860417766090874,"endHours":11.129608260217289,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:24","end":"13:40","startHours":12.398798754343701,"endHours":13.667989248470118,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:41","end":"10:02","startHours":9.691192366874018,"endHours":10.029643165307728,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:45","end":"08:01","startHours":7.7451002758801835,"endHours":8.015860914627153,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:44","startHours":12.060347955909991,"endHours":12.737249552777412,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:58","end":"06:39","startHours":5.968233584103204,"endHours":6.645135180970624,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:29","end":"07:19","startHours":6.475909781753769,"endHours":7.322036777838045,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:05","end":"14:46","startHours":14.091052746512254,"endHours":14.767954343379674,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:17","end":"17:41","startHours":17.27556073084936,"endHours":17.67556073084936,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:29","end":"17:54","startHours":17.47556073084936,"endHours":17.898624228891496,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:14","end":"18:59","startHours":17.22556073084936,"endHours":18.97556073084936,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:44","startHours":24.06034795590999,"endHours":24.737249552777413,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:19","end":"08:35","startHours":7.322036777838045,"endHours":8.59122727196446,"quality":"inauspicious"},{"name":"Udveg","start":"08:35","end":"09:52","startHours":8.59122727196446,"endHours":9.860417766090874,"quality":"inauspicious"},{"name":"Chala","start":"09:52","end":"11:08","startHours":9.860417766090874,"endHours":11.129608260217289,"quality":"neutral"},{"name":"Labha","start":"11:08","end":"12:24","startHours":11.129608260217289,"endHours":12.398798754343701,"quality":"auspicious"},{"name":"Amṛta","start":"12:24","end":"13:40","startHours":12.398798754343701,"endHours":13.667989248470118,"quality":"auspicious"},{"name":"Kāla","start":"13:40","end":"14:56","startHours":13.667989248470118,"endHours":14.93717974259653,"quality":"inauspicious"},{"name":"Śubha","start":"14:56","end":"16:12","startHours":14.93717974259653,"endHours":16.206370236722947,"quality":"auspicious"},{"name":"Roga","start":"16:12","end":"17:29","startHours":16.206370236722947,"endHours":17.47556073084936,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:29","end":"19:12","startHours":17.47556073084936,"endHours":19.206370236722947,"quality":"inauspicious"},{"name":"Śubha","start":"19:12","end":"20:56","startHours":19.206370236722947,"endHours":20.93717974259653,"quality":"auspicious"},{"name":"Roga","start":"20:56","end":"22:40","startHours":20.93717974259653,"endHours":22.667989248470118,"quality":"inauspicious"},{"name":"Udveg","start":"22:40","end":"00:24","startHours":22.667989248470118,"endHours":24.3987987543437,"quality":"inauspicious"},{"name":"Chala","start":"00:24","end":"02:08","startHours":24.3987987543437,"endHours":26.12960826021729,"quality":"neutral"},{"name":"Labha","start":"02:08","end":"03:52","startHours":26.12960826021729,"endHours":27.860417766090876,"quality":"auspicious"},{"name":"Amṛta","start":"03:52","end":"05:35","startHours":27.860417766090876,"endHours":29.59122727196446,"quality":"auspicious"},{"name":"Kāla","start":"05:35","end":"07:19","startHours":29.59122727196446,"endHours":31.322036777838044,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:19","end":"08:19","startHours":7.322036777838045,"endHours":8.322036777838045,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:19","end":"09:19","startHours":8.322036777838045,"endHours":9.322036777838045,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:19","end":"10:19","startHours":9.322036777838045,"endHours":10.322036777838045,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:19","end":"11:19","startHours":10.322036777838045,"endHours":11.322036777838045,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:19","end":"12:19","startHours":11.322036777838045,"endHours":12.322036777838045,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:19","end":"13:19","startHours":12.322036777838045,"endHours":13.322036777838045,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:19","end":"14:19","startHours":13.322036777838045,"endHours":14.322036777838045,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:19","end":"15:19","startHours":14.322036777838045,"endHours":15.322036777838045,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:19","end":"16:19","startHours":15.322036777838045,"endHours":16.322036777838044,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:19","end":"17:19","startHours":16.322036777838044,"endHours":17.322036777838044,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:19","end":"18:19","startHours":17.322036777838044,"endHours":18.322036777838044,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:19","end":"19:19","startHours":18.322036777838044,"endHours":19.322036777838044,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:19","end":"20:19","startHours":19.322036777838044,"endHours":20.322036777838044,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:19","end":"21:19","startHours":20.322036777838044,"endHours":21.322036777838044,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:19","end":"22:19","startHours":21.322036777838044,"endHours":22.322036777838044,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:19","end":"23:19","startHours":22.322036777838044,"endHours":23.322036777838044,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:19","end":"00:19","startHours":23.322036777838044,"endHours":24.322036777838044,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:19","end":"01:19","startHours":24.322036777838044,"endHours":25.322036777838044,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:19","end":"02:19","startHours":25.322036777838044,"endHours":26.322036777838044,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:19","end":"03:19","startHours":26.322036777838044,"endHours":27.322036777838044,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:19","end":"04:19","startHours":27.322036777838044,"endHours":28.322036777838044,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:19","end":"05:19","startHours":28.322036777838044,"endHours":29.322036777838044,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:19","end":"06:19","startHours":29.322036777838044,"endHours":30.322036777838044,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:19","end":"07:19","startHours":30.322036777838044,"endHours":31.322036777838044,"planetary_lord":"Saturn"}],"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":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Ānanda","quality":"Auspicious"},"drikRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-13.428191261643457,"eotMinutes":-14.599525260622107,"ayanamsa":24.1061}},"calendars":{"vikram_samvat":2075,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1940,"saka_samvatsara":"Vilambī","bengali_samvat":1425,"malayalam_era":1194,"nanakshahi_year":549,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Trayodaśī · Vikram 2075 Virodhakṛt · Śaka 1940 Vilambī"},"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":"Kumbha"},"precedence":5},{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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":[]},"validity":{"eternal":false,"location_specific":"seattle"},"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, 2018 CE · Seattle, USA · Vidhyamitra","description":"February 13, 2018 CE for Seattle, USA: Kṛṣṇa Trayodaśī, sūryodaya 07:19, sūryāsta 17:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/seattle/2018-02-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/seattle/2018-02-13","sa":"https://sa.vidhyamitra.com/city/seattle/2018-02-13","hi":"https://hi.vidhyamitra.com/city/seattle/2018-02-13","x-default":"https://vidhyamitra.com/city/seattle/2018-02-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T14:54:32.943Z","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":"2026-05-15T14:54:32.944Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T14:54:32.944Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}