{"id":"vidhyamitra:city-day:boston:1985-01-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/boston/1985-01-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1985-01-01","date_display":"January 1, 1985 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":1985,"month":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446066.770833,"kali_year":5086,"ahargana":1857601.2708,"sun":{"sidereal_longitude":256.7326,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":6.2792,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":109.5466,"elapsed_within_tithi_degrees":1.5466},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":6.2792,"elapsed_within_degrees":6.2792},"yoga":{"number":20,"name":"Śiva","sum_longitude":263.0119},"karana":{"half_tithi_index":18,"name":"Taitila"},"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":1985,"month":1,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446066.770833,"ahargana":1857601.2708,"kali_year":5086,"ayanamsa_lahiri":23.6435,"grahas":{"sun":{"sidereal_longitude":256.92851900000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":6.541619000000026,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false,"latitude":-2.1845},"mars":{"sidereal_longitude":311.71461899999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":234.445519,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":268.73331900000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":302.95881899999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":210.71191899999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":35.3453,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":215.3453,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","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":1985,"month":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446066.770833,"kali_year":5086,"ahargana":1857601.2708,"sun":{"sidereal_longitude":256.7326,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":6.2792,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":109.5466,"elapsed_within_tithi_degrees":1.5466},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":6.2792,"elapsed_within_degrees":6.2792},"yoga":{"number":20,"name":"Śiva","sum_longitude":263.0119},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.184,"elongation":109.547},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.184,"opposition_distance":70.453}},"eclipse_window_40days":[]},"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":"07:14","sunsetLocal":"16:22","solarNoonLocal":"11:48","dayLengthHours":9.137670184925414,"dayLengthDisplay":"9 Hours 08 Mins 16 Secs","nightLengthDisplay":"14 Hours 51 Mins 44 Secs","moonriseLocal":"12:20","moonsetLocal":"01:53","rahuKala":{"name":"Rāhu Kāla","start":"14:05","end":"15:14","startHours":14.083430518287955,"endHours":15.225639291403631,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:31","end":"10:39","startHours":9.514595425825247,"endHours":10.656804198940925,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:48","end":"12:56","startHours":11.799012972056602,"endHours":12.941221745172278,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:22","end":"09:40","startHours":9.362300922743158,"endHours":9.666889928907338,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:37","end":"07:51","startHours":7.61091413729912,"endHours":7.854585342230465,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:30","end":"12:06","startHours":11.494423965892421,"endHours":12.103601978220782,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:01","end":"06:37","startHours":6.011821854937172,"endHours":6.6209998672655335,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:28","end":"07:14","startHours":6.468705364183442,"endHours":7.230177879593894,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:19","end":"13:56","startHours":13.321958002877503,"endHours":13.931136015205864,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:10","end":"16:34","startHours":16.16784806451931,"endHours":16.567848064519307,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:22","end":"16:45","startHours":16.367848064519308,"endHours":16.748584322224534,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:07","end":"17:52","startHours":16.117848064519308,"endHours":17.867848064519308,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:30","end":"00:06","startHours":23.49442396589242,"endHours":24.103601978220784,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:14","end":"08:22","startHours":7.230177879593894,"endHours":8.37238665270957,"quality":"inauspicious"},{"name":"Udveg","start":"08:22","end":"09:31","startHours":8.37238665270957,"endHours":9.514595425825247,"quality":"inauspicious"},{"name":"Chala","start":"09:31","end":"10:39","startHours":9.514595425825247,"endHours":10.656804198940925,"quality":"neutral"},{"name":"Labha","start":"10:39","end":"11:48","startHours":10.656804198940925,"endHours":11.799012972056602,"quality":"auspicious"},{"name":"Amṛta","start":"11:48","end":"12:56","startHours":11.799012972056602,"endHours":12.941221745172278,"quality":"auspicious"},{"name":"Kāla","start":"12:56","end":"14:05","startHours":12.941221745172278,"endHours":14.083430518287955,"quality":"inauspicious"},{"name":"Śubha","start":"14:05","end":"15:14","startHours":14.083430518287955,"endHours":15.225639291403631,"quality":"auspicious"},{"name":"Roga","start":"15:14","end":"16:22","startHours":15.225639291403631,"endHours":16.367848064519308,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"16:22","end":"18:14","startHours":16.367848064519308,"endHours":18.22563929140363,"quality":"inauspicious"},{"name":"Śubha","start":"18:14","end":"20:05","startHours":18.22563929140363,"endHours":20.083430518287955,"quality":"auspicious"},{"name":"Roga","start":"20:05","end":"21:56","startHours":20.083430518287955,"endHours":21.941221745172278,"quality":"inauspicious"},{"name":"Udveg","start":"21:56","end":"23:48","startHours":21.941221745172278,"endHours":23.7990129720566,"quality":"inauspicious"},{"name":"Chala","start":"23:48","end":"01:39","startHours":23.7990129720566,"endHours":25.656804198940925,"quality":"neutral"},{"name":"Labha","start":"01:39","end":"03:31","startHours":25.656804198940925,"endHours":27.51459542582525,"quality":"auspicious"},{"name":"Amṛta","start":"03:31","end":"05:22","startHours":27.51459542582525,"endHours":29.372386652709572,"quality":"auspicious"},{"name":"Kāla","start":"05:22","end":"07:14","startHours":29.372386652709572,"endHours":31.230177879593896,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:14","end":"08:14","startHours":7.230177879593894,"endHours":8.230177879593894,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:14","end":"09:14","startHours":8.230177879593894,"endHours":9.230177879593894,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:14","end":"10:14","startHours":9.230177879593894,"endHours":10.230177879593894,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:14","end":"11:14","startHours":10.230177879593894,"endHours":11.230177879593894,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:14","end":"12:14","startHours":11.230177879593894,"endHours":12.230177879593894,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:14","end":"13:14","startHours":12.230177879593894,"endHours":13.230177879593894,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:14","end":"14:14","startHours":13.230177879593894,"endHours":14.230177879593894,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:14","end":"15:14","startHours":14.230177879593894,"endHours":15.230177879593894,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:14","end":"16:14","startHours":15.230177879593894,"endHours":16.230177879593896,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:14","end":"17:14","startHours":16.230177879593896,"endHours":17.230177879593896,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:14","end":"18:14","startHours":17.230177879593896,"endHours":18.230177879593896,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:14","end":"19:14","startHours":18.230177879593896,"endHours":19.230177879593896,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:14","end":"20:14","startHours":19.230177879593896,"endHours":20.230177879593896,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:14","end":"21:14","startHours":20.230177879593896,"endHours":21.230177879593896,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:14","end":"22:14","startHours":21.230177879593896,"endHours":22.230177879593896,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:14","end":"23:14","startHours":22.230177879593896,"endHours":23.230177879593896,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:14","end":"00:14","startHours":23.230177879593896,"endHours":24.230177879593896,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:14","end":"01:14","startHours":24.230177879593896,"endHours":25.230177879593896,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:14","end":"02:14","startHours":25.230177879593896,"endHours":26.230177879593896,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:14","end":"03:14","startHours":26.230177879593896,"endHours":27.230177879593896,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:14","end":"04:14","startHours":27.230177879593896,"endHours":28.230177879593896,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:14","end":"05:14","startHours":28.230177879593896,"endHours":29.230177879593896,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:14","end":"06:14","startHours":29.230177879593896,"endHours":30.230177879593896,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:14","end":"07:14","startHours":30.230177879593896,"endHours":31.230177879593896,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"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":-23.01555256351639,"eotMinutes":-3.705178323396069,"ayanamsa":23.6435}},"calendars":{"vikram_samvat":2042,"vikram_samvatsara":"Bahudhānya","saka_samvat":1907,"saka_samvatsara":"Krodhana","bengali_samvat":1392,"malayalam_era":1161,"nanakshahi_year":516,"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 Daśamī · Vikram 2042 Bahudhānya · Śaka 1907 Krodhana"},"festivals":[],"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":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","relevance":0.5}]},"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 January 1, 1985 CE · Boston, USA · Vidhyamitra","description":"January 1, 1985 CE for Boston, USA: Śukla Daśamī, sūryodaya 07:14, sūryāsta 16:22.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/boston/1985-01-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/boston/1985-01-01","sa":"https://sa.vidhyamitra.com/city/boston/1985-01-01","hi":"https://hi.vidhyamitra.com/city/boston/1985-01-01","x-default":"https://vidhyamitra.com/city/boston/1985-01-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T06:13:54.510Z","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":"2026-06-03T06:13:54.510Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T06:13:54.510Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}