{"id":"vidhyamitra:city-day:dwarka:1981-10-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/dwarka/1981-10-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-10-07","date_display":"October 7, 1981 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":1981,"month":10,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444884.770833,"kali_year":5083,"ahargana":1856419.2708,"sun":{"sidereal_longitude":169.3934,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":270.3164,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":100.923,"elapsed_within_tithi_degrees":4.923},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":270.3164,"elapsed_within_degrees":3.6497},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":79.7098},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1981,"month":10,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444884.770833,"ahargana":1856419.2708,"kali_year":5083,"ayanamsa_lahiri":23.5983,"grahas":{"sun":{"sidereal_longitude":170.09348,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"moon":{"sidereal_longitude":268.10317999999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false,"latitude":0.599},"mars":{"sidereal_longitude":118.32087999999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":190.77667999999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":175.95668,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":214.47587999999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":169.03427999999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":97.9733,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":277.9733,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"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":1981,"month":10,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444884.770833,"kali_year":5083,"ahargana":1856419.2708,"sun":{"sidereal_longitude":169.3934,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":270.3164,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":100.923,"elapsed_within_tithi_degrees":4.923},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":270.3164,"elapsed_within_degrees":3.6497},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":79.7098},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.599,"elongation":100.923},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.599,"opposition_distance":79.077}},"eclipse_window_40days":[]},"city":{"slug":"dwarka","name":"Dvārakā","lat":22.2393,"lon":68.9686,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"dwarka","name":"Dvārakā","lat":22.2393,"lon":68.9686,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tirtha"},"sunriseLocal":"06:46","sunsetLocal":"18:36","solarNoonLocal":"12:41","dayLengthHours":11.82512183251226,"dayLengthDisplay":"11 Hours 49 Mins 30 Secs","nightLengthDisplay":"12 Hours 10 Mins 30 Secs","moonriseLocal":"13:48","moonsetLocal":"00:39","rahuKala":{"name":"Rāhu Kāla","start":"12:41","end":"14:10","startHours":12.686114163183007,"endHours":14.164254392247038,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:15","end":"09:44","startHours":8.251693475990908,"endHours":9.729833705054942,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:12","end":"12:41","startHours":11.207973934118975,"endHours":12.686114163183007,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:32","end":"09:56","startHours":9.532748341179737,"endHours":9.926919068930147,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:16","end":"07:35","startHours":7.266266656614888,"endHours":7.581603238815214,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:18","end":"13:05","startHours":12.291943435432598,"endHours":13.080284890933415,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:12","end":"05:59","startHours":5.196870335925242,"endHours":5.985211791426059,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:47","end":"06:46","startHours":5.788126427550855,"endHours":6.773553246926877,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:39","end":"15:27","startHours":14.65696780193505,"endHours":15.445309257435866,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:24","end":"18:48","startHours":18.398675079439137,"endHours":18.798675079439136,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:36","end":"19:05","startHours":18.598675079439136,"endHours":19.091388489127148,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:21","end":"20:06","startHours":18.348675079439136,"endHours":20.098675079439136,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:18","end":"01:05","startHours":24.291943435432596,"endHours":25.080284890933417,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:46","end":"08:15","startHours":6.773553246926877,"endHours":8.251693475990908,"quality":"auspicious"},{"name":"Amṛta","start":"08:15","end":"09:44","startHours":8.251693475990908,"endHours":9.729833705054942,"quality":"auspicious"},{"name":"Kāla","start":"09:44","end":"11:12","startHours":9.729833705054942,"endHours":11.207973934118975,"quality":"inauspicious"},{"name":"Śubha","start":"11:12","end":"12:41","startHours":11.207973934118975,"endHours":12.686114163183007,"quality":"auspicious"},{"name":"Roga","start":"12:41","end":"14:10","startHours":12.686114163183007,"endHours":14.164254392247038,"quality":"inauspicious"},{"name":"Udveg","start":"14:10","end":"15:39","startHours":14.164254392247038,"endHours":15.642394621311071,"quality":"inauspicious"},{"name":"Chala","start":"15:39","end":"17:07","startHours":15.642394621311071,"endHours":17.120534850375105,"quality":"neutral"},{"name":"Labha","start":"17:07","end":"18:36","startHours":17.120534850375105,"endHours":18.598675079439136,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:36","end":"20:07","startHours":18.598675079439136,"endHours":20.120534850375105,"quality":"inauspicious"},{"name":"Chala","start":"20:07","end":"21:39","startHours":20.120534850375105,"endHours":21.64239462131107,"quality":"neutral"},{"name":"Labha","start":"21:39","end":"23:10","startHours":21.64239462131107,"endHours":23.164254392247038,"quality":"auspicious"},{"name":"Amṛta","start":"23:10","end":"00:41","startHours":23.164254392247038,"endHours":24.686114163183007,"quality":"auspicious"},{"name":"Kāla","start":"00:41","end":"02:12","startHours":24.686114163183007,"endHours":26.207973934118975,"quality":"inauspicious"},{"name":"Śubha","start":"02:12","end":"03:44","startHours":26.207973934118975,"endHours":27.729833705054943,"quality":"auspicious"},{"name":"Roga","start":"03:44","end":"05:15","startHours":27.729833705054943,"endHours":29.25169347599091,"quality":"inauspicious"},{"name":"Udveg","start":"05:15","end":"06:46","startHours":29.25169347599091,"endHours":30.773553246926877,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:46","end":"07:46","startHours":6.773553246926877,"endHours":7.773553246926877,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:46","end":"08:46","startHours":7.773553246926877,"endHours":8.773553246926877,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:46","end":"09:46","startHours":8.773553246926877,"endHours":9.773553246926877,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:46","end":"10:46","startHours":9.773553246926877,"endHours":10.773553246926877,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:46","end":"11:46","startHours":10.773553246926877,"endHours":11.773553246926877,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:46","end":"12:46","startHours":11.773553246926877,"endHours":12.773553246926877,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:46","end":"13:46","startHours":12.773553246926877,"endHours":13.773553246926877,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:46","end":"14:46","startHours":13.773553246926877,"endHours":14.773553246926877,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:46","end":"15:46","startHours":14.773553246926877,"endHours":15.773553246926877,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:46","end":"16:46","startHours":15.773553246926877,"endHours":16.773553246926877,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:46","end":"17:46","startHours":16.773553246926877,"endHours":17.773553246926877,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:46","end":"18:46","startHours":17.773553246926877,"endHours":18.773553246926877,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:46","end":"19:46","startHours":18.773553246926877,"endHours":19.773553246926877,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:46","end":"20:46","startHours":19.773553246926877,"endHours":20.773553246926877,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:46","end":"21:46","startHours":20.773553246926877,"endHours":21.773553246926877,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:46","end":"22:46","startHours":21.773553246926877,"endHours":22.773553246926877,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:46","end":"23:46","startHours":22.773553246926877,"endHours":23.773553246926877,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:46","end":"00:46","startHours":23.773553246926877,"endHours":24.773553246926877,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:46","end":"01:46","startHours":24.773553246926877,"endHours":25.773553246926877,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:46","end":"02:46","startHours":25.773553246926877,"endHours":26.773553246926877,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:46","end":"03:46","startHours":26.773553246926877,"endHours":27.773553246926877,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:46","end":"04:46","startHours":27.773553246926877,"endHours":28.773553246926877,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:46","end":"05:46","startHours":28.773553246926877,"endHours":29.773553246926877,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:46","end":"06:46","startHours":29.773553246926877,"endHours":30.773553246926877,"planetary_lord":"Sun"}],"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":"South-West","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"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":-5.40198360717454,"eotMinutes":12.958750209019716,"ayanamsa":23.5983}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Navamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"mahanavami","name":"Mahā-Navamī","name_sanskrit":"महानवमी","tradition":"Shakta","associated_deity":"Devī Durgā","significance":"9th day of Śāradīya Navrātri; Devī's final victory.","vrata":true,"detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":1},{"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":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"dwarka"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga October 7, 1981 CE · Dvārakā · Vidhyamitra","description":"October 7, 1981 CE for Dvārakā: Śukla Navamī, sūryodaya 06:46, sūryāsta 18:36.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/dwarka/1981-10-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/dwarka/1981-10-07","sa":"https://sa.vidhyamitra.com/city/dwarka/1981-10-07","hi":"https://hi.vidhyamitra.com/city/dwarka/1981-10-07","x-default":"https://vidhyamitra.com/city/dwarka/1981-10-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T20:21:36.312Z","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":"2026-05-18T20:21:36.312Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T20:21:36.312Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}