{"id":"vidhyamitra:city-day:boston:2018-10-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/boston/2018-10-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2018-10-01","date_display":"October 1, 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":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458392.770833,"kali_year":5120,"ahargana":1869927.2708,"sun":{"sidereal_longitude":162.918,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":56.6091,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":253.6911,"elapsed_within_tithi_degrees":1.6911},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":56.6091,"elapsed_within_degrees":3.2758},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":219.5271},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":10,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458392.770833,"ahargana":1869927.2708,"kali_year":5120,"ayanamsa_lahiri":24.1149,"grahas":{"sun":{"sidereal_longitude":163.708575,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":56.124075000000005,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false,"latitude":-3.216},"mars":{"sidereal_longitude":281.575875,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":171.04347499999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":207.89317499999993,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":196.17607499999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":248.807275,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":102.2545,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":282.2545,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458392.770833,"kali_year":5120,"ahargana":1869927.2708,"sun":{"sidereal_longitude":162.918,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":56.6091,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":253.6911,"elapsed_within_tithi_degrees":1.6911},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":56.6091,"elapsed_within_degrees":3.2758},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":219.5271},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.216,"elongation":106.309},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.216,"opposition_distance":73.691}},"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":"05:40","sunsetLocal":"17:26","solarNoonLocal":"11:33","dayLengthHours":11.77279693058587,"dayLengthDisplay":"11 Hours 46 Mins 22 Secs","nightLengthDisplay":"12 Hours 13 Mins 38 Secs","moonriseLocal":"20:48","moonsetLocal":"11:58","rahuKala":{"name":"Rāhu Kāla","start":"07:08","end":"08:36","startHours":7.136331747920559,"endHours":8.607931364243793,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:05","end":"11:33","startHours":10.079530980567025,"endHours":11.55113059689026,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:01","end":"14:30","startHours":13.022730213213492,"endHours":14.494329829536728,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:25","end":"08:48","startHours":8.411718082067361,"endHours":8.804144646420223,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:09","end":"06:28","startHours":6.1552653370384025,"endHours":6.469206588520692,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:10","end":"11:57","startHours":11.158704032537399,"endHours":11.943557161243122,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:06","end":"04:53","startHours":4.095025874185875,"endHours":4.879879002891601,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:41","end":"05:40","startHours":4.683665720715169,"endHours":5.664732131597325,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:31","end":"14:18","startHours":13.51326341865457,"endHours":14.298116547360296,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:14","end":"17:38","startHours":17.237529062183196,"endHours":17.637529062183194,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:26","end":"17:56","startHours":17.437529062183195,"endHours":17.928062267624274,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:11","end":"18:56","startHours":17.187529062183195,"endHours":18.937529062183195,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:10","end":"23:57","startHours":23.158704032537397,"endHours":23.943557161243124,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:40","end":"07:08","startHours":5.664732131597325,"endHours":7.136331747920559,"quality":"auspicious"},{"name":"Kāla","start":"07:08","end":"08:36","startHours":7.136331747920559,"endHours":8.607931364243793,"quality":"inauspicious"},{"name":"Śubha","start":"08:36","end":"10:05","startHours":8.607931364243793,"endHours":10.079530980567025,"quality":"auspicious"},{"name":"Roga","start":"10:05","end":"11:33","startHours":10.079530980567025,"endHours":11.55113059689026,"quality":"inauspicious"},{"name":"Udveg","start":"11:33","end":"13:01","startHours":11.55113059689026,"endHours":13.022730213213492,"quality":"inauspicious"},{"name":"Chala","start":"13:01","end":"14:30","startHours":13.022730213213492,"endHours":14.494329829536728,"quality":"neutral"},{"name":"Labha","start":"14:30","end":"15:58","startHours":14.494329829536728,"endHours":15.96592944585996,"quality":"auspicious"},{"name":"Amṛta","start":"15:58","end":"17:26","startHours":15.96592944585996,"endHours":17.437529062183195,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:26","end":"18:58","startHours":17.437529062183195,"endHours":18.965929445859963,"quality":"neutral"},{"name":"Labha","start":"18:58","end":"20:30","startHours":18.965929445859963,"endHours":20.494329829536728,"quality":"auspicious"},{"name":"Amṛta","start":"20:30","end":"22:01","startHours":20.494329829536728,"endHours":22.022730213213492,"quality":"auspicious"},{"name":"Kāla","start":"22:01","end":"23:33","startHours":22.022730213213492,"endHours":23.55113059689026,"quality":"inauspicious"},{"name":"Śubha","start":"23:33","end":"01:05","startHours":23.55113059689026,"endHours":25.07953098056703,"quality":"auspicious"},{"name":"Roga","start":"01:05","end":"02:36","startHours":25.07953098056703,"endHours":26.607931364243793,"quality":"inauspicious"},{"name":"Udveg","start":"02:36","end":"04:08","startHours":26.607931364243793,"endHours":28.136331747920558,"quality":"inauspicious"},{"name":"Chala","start":"04:08","end":"05:40","startHours":28.136331747920558,"endHours":29.664732131597326,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:40","end":"06:40","startHours":5.664732131597325,"endHours":6.664732131597325,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:40","end":"07:40","startHours":6.664732131597325,"endHours":7.664732131597325,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:40","end":"08:40","startHours":7.664732131597325,"endHours":8.664732131597326,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:40","end":"09:40","startHours":8.664732131597326,"endHours":9.664732131597326,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:40","end":"10:40","startHours":9.664732131597326,"endHours":10.664732131597326,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:40","end":"11:40","startHours":10.664732131597326,"endHours":11.664732131597326,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:40","end":"12:40","startHours":11.664732131597326,"endHours":12.664732131597326,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:40","end":"13:40","startHours":12.664732131597326,"endHours":13.664732131597326,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:40","end":"14:40","startHours":13.664732131597326,"endHours":14.664732131597326,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:40","end":"15:40","startHours":14.664732131597326,"endHours":15.664732131597326,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:40","end":"16:40","startHours":15.664732131597326,"endHours":16.664732131597326,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:40","end":"17:40","startHours":16.664732131597326,"endHours":17.664732131597326,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:40","end":"18:40","startHours":17.664732131597326,"endHours":18.664732131597326,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:40","end":"19:40","startHours":18.664732131597326,"endHours":19.664732131597326,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:40","end":"20:40","startHours":19.664732131597326,"endHours":20.664732131597326,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:40","end":"21:40","startHours":20.664732131597326,"endHours":21.664732131597326,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:40","end":"22:40","startHours":21.664732131597326,"endHours":22.664732131597326,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:40","end":"23:40","startHours":22.664732131597326,"endHours":23.664732131597326,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:40","end":"00:40","startHours":23.664732131597326,"endHours":24.664732131597326,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:40","end":"01:40","startHours":24.664732131597326,"endHours":25.664732131597326,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:40","end":"02:40","startHours":25.664732131597326,"endHours":26.664732131597326,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:40","end":"03:40","startHours":26.664732131597326,"endHours":27.664732131597326,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:40","end":"04:40","startHours":27.664732131597326,"endHours":28.664732131597326,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:40","end":"05:40","startHours":28.664732131597326,"endHours":29.664732131597326,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-3.1035071008825073,"eotMinutes":11.167764186584405,"ayanamsa":24.1149}},"calendars":{"vikram_samvat":2075,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1940,"saka_samvatsara":"Vilambī","bengali_samvat":1425,"malayalam_era":1194,"nanakshahi_year":549,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Saptamī · Vikram 2075 Virodhakṛt · Śaka 1940 Vilambī"},"festivals":[{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 1, 2018 CE · Boston, USA · Vidhyamitra","description":"October 1, 2018 CE for Boston, USA: Kṛṣṇa Saptamī, sūryodaya 05:40, sūryāsta 17:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/boston/2018-10-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/boston/2018-10-01","sa":"https://sa.vidhyamitra.com/city/boston/2018-10-01","hi":"https://hi.vidhyamitra.com/city/boston/2018-10-01","x-default":"https://vidhyamitra.com/city/boston/2018-10-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T17:02:00.507Z","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":"2026-05-15T17:02:00.507Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T17:02:00.507Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}