{"id":"vidhyamitra:city-day:boston:2017-12-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/boston/2017-12-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2017-12-01","date_display":"December 1, 2017 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":2017,"month":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458088.770833,"kali_year":5119,"ahargana":1869623.2708,"sun":{"sidereal_longitude":224.3813,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":9.251,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":144.8697,"elapsed_within_tithi_degrees":0.8697},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":9.251,"elapsed_within_degrees":9.251},"yoga":{"number":18,"name":"Varīyān","sum_longitude":233.6323},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2017,"month":12,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458088.770833,"ahargana":1869623.2708,"kali_year":5119,"ayanamsa_lahiri":24.1033,"grahas":{"sun":{"sidereal_longitude":224.92598999999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":8.495290000000011,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false,"latitude":-4.2515},"mars":{"sidereal_longitude":180.35808999999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":244.74009,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":196.72069,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":215.24779,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":243.51238999999998,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":118.3619,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":298.3619,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":"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":2017,"month":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458088.770833,"kali_year":5119,"ahargana":1869623.2708,"sun":{"sidereal_longitude":224.3813,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":9.251,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":144.8697,"elapsed_within_tithi_degrees":0.8697},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":9.251,"elapsed_within_degrees":9.251},"yoga":{"number":18,"name":"Varīyān","sum_longitude":233.6323},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.252,"elongation":144.87},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.252,"opposition_distance":35.13}},"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":"06:54","sunsetLocal":"16:14","solarNoonLocal":"11:34","dayLengthHours":9.320920770552014,"dayLengthDisplay":"9 Hours 19 Mins 15 Secs","nightLengthDisplay":"14 Hours 40 Mins 45 Secs","moonriseLocal":"14:19","moonsetLocal":"03:58","rahuKala":{"name":"Rāhu Kāla","start":"10:24","end":"11:34","startHours":10.403294060340992,"endHours":11.568409156659992,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:54","end":"15:04","startHours":13.898639349297998,"endHours":15.063754445616997,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:04","end":"09:14","startHours":8.073063867702988,"endHours":9.23817896402199,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:05","end":"09:24","startHours":9.08283028451279,"endHours":9.39352764353119,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:18","end":"07:33","startHours":7.296320470156987,"endHours":7.544878357371707,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:15","end":"11:53","startHours":11.257711797641592,"endHours":11.879106515678393,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:40","end":"06:17","startHours":5.665159335310385,"endHours":6.286554053347185,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:08","end":"06:54","startHours":6.131205373837985,"endHours":6.907948771383986,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:07","end":"13:45","startHours":13.121895951751995,"endHours":13.743290669788795,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:02","end":"16:26","startHours":16.028869541936,"endHours":16.428869541936,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:14","end":"16:37","startHours":16.228869541936,"endHours":16.617241240709,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"15:59","end":"17:44","startHours":15.978869541936,"endHours":17.728869541936,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:15","end":"23:53","startHours":23.25771179764159,"endHours":23.879106515678394,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:54","end":"08:04","startHours":6.907948771383986,"endHours":8.073063867702988,"quality":"neutral"},{"name":"Labha","start":"08:04","end":"09:14","startHours":8.073063867702988,"endHours":9.23817896402199,"quality":"auspicious"},{"name":"Amṛta","start":"09:14","end":"10:24","startHours":9.23817896402199,"endHours":10.403294060340992,"quality":"auspicious"},{"name":"Kāla","start":"10:24","end":"11:34","startHours":10.403294060340992,"endHours":11.568409156659992,"quality":"inauspicious"},{"name":"Śubha","start":"11:34","end":"12:44","startHours":11.568409156659992,"endHours":12.733524252978995,"quality":"auspicious"},{"name":"Roga","start":"12:44","end":"13:54","startHours":12.733524252978995,"endHours":13.898639349297998,"quality":"inauspicious"},{"name":"Udveg","start":"13:54","end":"15:04","startHours":13.898639349297998,"endHours":15.063754445616997,"quality":"inauspicious"},{"name":"Chala","start":"15:04","end":"16:14","startHours":15.063754445616997,"endHours":16.228869541936,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"16:14","end":"18:04","startHours":16.228869541936,"endHours":18.063754445616997,"quality":"inauspicious"},{"name":"Udveg","start":"18:04","end":"19:54","startHours":18.063754445616997,"endHours":19.898639349297994,"quality":"inauspicious"},{"name":"Chala","start":"19:54","end":"21:44","startHours":19.898639349297994,"endHours":21.733524252978995,"quality":"neutral"},{"name":"Labha","start":"21:44","end":"23:34","startHours":21.733524252978995,"endHours":23.568409156659992,"quality":"auspicious"},{"name":"Amṛta","start":"23:34","end":"01:24","startHours":23.568409156659992,"endHours":25.40329406034099,"quality":"auspicious"},{"name":"Kāla","start":"01:24","end":"03:14","startHours":25.40329406034099,"endHours":27.23817896402199,"quality":"inauspicious"},{"name":"Śubha","start":"03:14","end":"05:04","startHours":27.23817896402199,"endHours":29.073063867702988,"quality":"auspicious"},{"name":"Roga","start":"05:04","end":"06:54","startHours":29.073063867702988,"endHours":30.907948771383985,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:54","end":"07:54","startHours":6.907948771383986,"endHours":7.907948771383986,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:54","end":"08:54","startHours":7.907948771383986,"endHours":8.907948771383985,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:54","end":"09:54","startHours":8.907948771383985,"endHours":9.907948771383985,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:54","end":"10:54","startHours":9.907948771383985,"endHours":10.907948771383985,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:54","end":"11:54","startHours":10.907948771383985,"endHours":11.907948771383985,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:54","end":"12:54","startHours":11.907948771383985,"endHours":12.907948771383985,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:54","end":"13:54","startHours":12.907948771383985,"endHours":13.907948771383985,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:54","end":"14:54","startHours":13.907948771383985,"endHours":14.907948771383985,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:54","end":"15:54","startHours":14.907948771383985,"endHours":15.907948771383985,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:54","end":"16:54","startHours":15.907948771383985,"endHours":16.907948771383985,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:54","end":"17:54","startHours":16.907948771383985,"endHours":17.907948771383985,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:54","end":"18:54","startHours":17.907948771383985,"endHours":18.907948771383985,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:54","end":"19:54","startHours":18.907948771383985,"endHours":19.907948771383985,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:54","end":"20:54","startHours":19.907948771383985,"endHours":20.907948771383985,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:54","end":"21:54","startHours":20.907948771383985,"endHours":21.907948771383985,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:54","end":"22:54","startHours":21.907948771383985,"endHours":22.907948771383985,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:54","end":"23:54","startHours":22.907948771383985,"endHours":23.907948771383985,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:54","end":"00:54","startHours":23.907948771383985,"endHours":24.907948771383985,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:54","end":"01:54","startHours":24.907948771383985,"endHours":25.907948771383985,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:54","end":"02:54","startHours":25.907948771383985,"endHours":26.907948771383985,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:54","end":"03:54","startHours":26.907948771383985,"endHours":27.907948771383985,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:54","end":"04:54","startHours":27.907948771383985,"endHours":28.907948771383985,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:54","end":"05:54","startHours":28.907948771383985,"endHours":29.907948771383985,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:54","end":"06:54","startHours":29.907948771383985,"endHours":30.907948771383985,"planetary_lord":"Mars"}],"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":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-21.80124783925839,"eotMinutes":10.131050600400467,"ayanamsa":24.1033}},"calendars":{"vikram_samvat":2074,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":1939,"saka_samvatsara":"Hemalambī","bengali_samvat":1424,"malayalam_era":1193,"nanakshahi_year":548,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Trayodaśī · Vikram 2074 Sādhāraṇa · Śaka 1939 Hemalambī"},"festivals":[{"id":"vrischika-sankranti","name":"Vṛścika Saṅkrānti","name_sanskrit":"वृश्चिक सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Scorpio.","vrata":false,"detection":{"sun_rashi":"Vṛścika"},"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":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 December 1, 2017 CE · Boston, USA · Vidhyamitra","description":"December 1, 2017 CE for Boston, USA: Śukla Trayodaśī, sūryodaya 06:54, sūryāsta 16:14.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/boston/2017-12-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/boston/2017-12-01","sa":"https://sa.vidhyamitra.com/city/boston/2017-12-01","hi":"https://hi.vidhyamitra.com/city/boston/2017-12-01","x-default":"https://vidhyamitra.com/city/boston/2017-12-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T14:11:53.553Z","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":"2026-05-15T14:11:53.553Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T14:11:53.553Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}