{"id":"vidhyamitra:city-day:boston:2013-10-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/boston/2013-10-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2013-10-08","date_display":"October 8, 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":10,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456573.770833,"kali_year":5115,"ahargana":1868108.2708,"sun":{"sidereal_longitude":170.1043,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":207.533,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":37.4288,"elapsed_within_tithi_degrees":1.4288},"nakshatra":{"number":16,"name":"Viśākhā","pada":3,"moon_longitude":207.533,"elapsed_within_degrees":7.533},"yoga":{"number":2,"name":"Prīti","sum_longitude":17.6373},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"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":2013,"month":10,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456573.770833,"ahargana":1868108.2708,"kali_year":5115,"ayanamsa_lahiri":24.0453,"grahas":{"sun":{"sidereal_longitude":170.88127399999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"moon":{"sidereal_longitude":209.25257399999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false,"latitude":0.6954},"mars":{"sidereal_longitude":121.32417399999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":195.960874,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":84.43607400000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"venus":{"sidereal_longitude":216.12767400000007,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":196.47297400000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":198.6338,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":18.6338,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":10,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456573.770833,"kali_year":5115,"ahargana":1868108.2708,"sun":{"sidereal_longitude":170.1043,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":207.533,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":37.4288,"elapsed_within_tithi_degrees":1.4288},"nakshatra":{"number":16,"name":"Viśākhā","pada":3,"moon_longitude":207.533,"elapsed_within_degrees":7.533},"yoga":{"number":2,"name":"Prīti","sum_longitude":17.6373},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.695,"elongation":37.429},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.695,"opposition_distance":142.571}},"eclipse_window_40days":[{"offset_days":11,"type":"lunar","occurs":true,"moon_latitude":1.128,"opposition_distance":2.501}]},"city":{"slug":"boston","name":"Boston, USA","lat":42.3601,"lon":-71.0589,"tz_offset_hours":-5,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"boston","name":"Boston, USA","lat":42.3601,"lon":-71.0589,"tz_offset_hours":-5,"country":"US","tier":"diaspora"},"sunriseLocal":"05:48","sunsetLocal":"17:14","solarNoonLocal":"11:31","dayLengthHours":11.433146804817042,"dayLengthDisplay":"11 Hours 25 Mins 59 Secs","nightLengthDisplay":"12 Hours 34 Mins 01 Secs","moonriseLocal":"09:12","moonsetLocal":"18:57","rahuKala":{"name":"Rāhu Kāla","start":"14:23","end":"15:48","startHours":14.3750581140782,"endHours":15.804201464680329,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:40","end":"10:05","startHours":8.65848471166968,"endHours":10.087628062271808,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:31","end":"12:57","startHours":11.51677141287394,"endHours":12.945914763476068,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:28","end":"08:51","startHours":8.467932264922727,"endHours":8.849037158416628,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:17","end":"06:35","startHours":6.276579127332795,"endHours":6.581463042127916,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:08","end":"11:54","startHours":11.135666519380038,"endHours":11.897876306367841,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:17","end":"05:02","startHours":4.275778436489812,"endHours":5.037988223477615,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:51","end":"05:48","startHours":4.847435776730665,"endHours":5.800198010465418,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:25","end":"14:11","startHours":13.422295880343446,"endHours":14.18450566733125,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:02","end":"17:26","startHours":17.03334481528246,"endHours":17.43334481528246,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:14","end":"17:43","startHours":17.23334481528246,"endHours":17.709725932149837,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:59","end":"18:44","startHours":16.98334481528246,"endHours":18.73334481528246,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:08","end":"23:54","startHours":23.135666519380038,"endHours":23.89787630636784,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:48","end":"07:14","startHours":5.800198010465418,"endHours":7.229341361067548,"quality":"inauspicious"},{"name":"Udveg","start":"07:14","end":"08:40","startHours":7.229341361067548,"endHours":8.65848471166968,"quality":"inauspicious"},{"name":"Chala","start":"08:40","end":"10:05","startHours":8.65848471166968,"endHours":10.087628062271808,"quality":"neutral"},{"name":"Labha","start":"10:05","end":"11:31","startHours":10.087628062271808,"endHours":11.51677141287394,"quality":"auspicious"},{"name":"Amṛta","start":"11:31","end":"12:57","startHours":11.51677141287394,"endHours":12.945914763476068,"quality":"auspicious"},{"name":"Kāla","start":"12:57","end":"14:23","startHours":12.945914763476068,"endHours":14.3750581140782,"quality":"inauspicious"},{"name":"Śubha","start":"14:23","end":"15:48","startHours":14.3750581140782,"endHours":15.804201464680329,"quality":"auspicious"},{"name":"Roga","start":"15:48","end":"17:14","startHours":15.804201464680329,"endHours":17.23334481528246,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:14","end":"18:48","startHours":17.23334481528246,"endHours":18.804201464680332,"quality":"inauspicious"},{"name":"Śubha","start":"18:48","end":"20:23","startHours":18.804201464680332,"endHours":20.3750581140782,"quality":"auspicious"},{"name":"Roga","start":"20:23","end":"21:57","startHours":20.3750581140782,"endHours":21.94591476347607,"quality":"inauspicious"},{"name":"Udveg","start":"21:57","end":"23:31","startHours":21.94591476347607,"endHours":23.51677141287394,"quality":"inauspicious"},{"name":"Chala","start":"23:31","end":"01:05","startHours":23.51677141287394,"endHours":25.08762806227181,"quality":"neutral"},{"name":"Labha","start":"01:05","end":"02:40","startHours":25.08762806227181,"endHours":26.65848471166968,"quality":"auspicious"},{"name":"Amṛta","start":"02:40","end":"04:14","startHours":26.65848471166968,"endHours":28.229341361067547,"quality":"auspicious"},{"name":"Kāla","start":"04:14","end":"05:48","startHours":28.229341361067547,"endHours":29.80019801046542,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:48","end":"06:48","startHours":5.800198010465418,"endHours":6.800198010465418,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:48","end":"07:48","startHours":6.800198010465418,"endHours":7.800198010465418,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:48","end":"08:48","startHours":7.800198010465418,"endHours":8.800198010465419,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:48","end":"09:48","startHours":8.800198010465419,"endHours":9.800198010465419,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:48","end":"10:48","startHours":9.800198010465419,"endHours":10.800198010465419,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:48","end":"11:48","startHours":10.800198010465419,"endHours":11.800198010465419,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:48","end":"12:48","startHours":11.800198010465419,"endHours":12.800198010465419,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:48","end":"13:48","startHours":12.800198010465419,"endHours":13.800198010465419,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:48","end":"14:48","startHours":13.800198010465419,"endHours":14.800198010465419,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:48","end":"15:48","startHours":14.800198010465419,"endHours":15.800198010465419,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:48","end":"16:48","startHours":15.800198010465419,"endHours":16.80019801046542,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:48","end":"17:48","startHours":16.80019801046542,"endHours":17.80019801046542,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:48","end":"18:48","startHours":17.80019801046542,"endHours":18.80019801046542,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:48","end":"19:48","startHours":18.80019801046542,"endHours":19.80019801046542,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:48","end":"20:48","startHours":19.80019801046542,"endHours":20.80019801046542,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:48","end":"21:48","startHours":20.80019801046542,"endHours":21.80019801046542,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:48","end":"22:48","startHours":21.80019801046542,"endHours":22.80019801046542,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:48","end":"23:48","startHours":22.80019801046542,"endHours":23.80019801046542,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:48","end":"00:48","startHours":23.80019801046542,"endHours":24.80019801046542,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:48","end":"01:48","startHours":24.80019801046542,"endHours":25.80019801046542,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:48","end":"02:48","startHours":25.80019801046542,"endHours":26.80019801046542,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:48","end":"03:48","startHours":26.80019801046542,"endHours":27.80019801046542,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:48","end":"04:48","startHours":27.80019801046542,"endHours":28.80019801046542,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:48","end":"05:48","startHours":28.80019801046542,"endHours":29.80019801046542,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"North","rahuVasa":"North","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-5.8801728622322225,"eotMinutes":13.229315227563635,"ayanamsa":24.0453}},"calendars":{"vikram_samvat":2070,"vikram_samvatsara":"Parābhava","saka_samvat":1935,"saka_samvatsara":"Vijaya","bengali_samvat":1420,"malayalam_era":1189,"nanakshahi_year":544,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Caturthī · Vikram 2070 Parābhava · Śaka 1935 Vijaya"},"festivals":[{"id":"angarika-chaturthi","name":"Aṅgāraka Caturthī (Tuesday Caturthī)","name_sanskrit":"अङ्गारक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa + Maṅgala","significance":"Tuesday-Caturthī (rare); supremely auspicious for Maṅgala-doṣa-nivāraṇa.","vrata":true,"detection":{"any_of":[{"tithi_number":4,"vara_name":"Maṅgalavāra (Tuesday)"},{"tithi_number":19,"vara_name":"Maṅgalavāra (Tuesday)"}]},"precedence":3},{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"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":"Dedicated festival walk for Aṅgāraka Caturthī (Tuesday Caturthī) · Vināyaka Caturthī (monthly) is not live yet; Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"boston"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga October 8, 2013 CE · Boston, USA · Vidhyamitra","description":"October 8, 2013 CE for Boston, USA: Śukla Caturthī, sūryodaya 05:48, sūryāsta 17:14.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/boston/2013-10-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/boston/2013-10-08","sa":"https://sa.vidhyamitra.com/city/boston/2013-10-08","hi":"https://hi.vidhyamitra.com/city/boston/2013-10-08","x-default":"https://vidhyamitra.com/city/boston/2013-10-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-08-10T11:14:27.052Z","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":"2026-08-10T11:14:27.052Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-08-10T11:14:27.052Z","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":["Goloka/Vraja Rādhā-Krishna","Vaikuṇṭha Lakṣmī-Nārāyaṇa","Mahāviṣṇu/Kāraṇodakaśāyī Viṣṇu","Garbhodakaśāyī Viṣṇu","Brahmā","Kṣīrodaka Paramātmā/Antaryāmī (Kṣīrodakaśāyī Viṣṇu)","Bhūmi","reader's own kṣetra anywhere on Bhūmi","exact reading kṣetra","reader-bhakta","chitta/vāṇī/aṅgulī","keyboard-silicon-pathways","Vidhyāmitra substrate","reader/seer","Krishna"],"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"}}}