{"id":"vidhyamitra:city-day:badrinath:1981-12-30:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/badrinath/1981-12-30","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-12-30","date_display":"December 30, 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":12,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444968.770833,"kali_year":5083,"ahargana":1856503.2708,"sun":{"sidereal_longitude":254.4464,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":297.3398,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":42.8935,"elapsed_within_tithi_degrees":6.8935},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":297.3398,"elapsed_within_degrees":4.0065},"yoga":{"number":15,"name":"Vajra","sum_longitude":191.7862},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"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":12,"day":30,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444968.770833,"ahargana":1856503.2708,"kali_year":5083,"ayanamsa_lahiri":23.6015,"grahas":{"sun":{"sidereal_longitude":254.65487099999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":294.88047099999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false,"latitude":-1.8156},"mars":{"sidereal_longitude":162.85197100000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":266.09467100000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":192.602671,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":285.460471,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":true},"saturn":{"sidereal_longitude":177.44927099999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":93.5226,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":273.5226,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"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":12,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444968.770833,"kali_year":5083,"ahargana":1856503.2708,"sun":{"sidereal_longitude":254.4464,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":297.3398,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":42.8935,"elapsed_within_tithi_degrees":6.8935},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":297.3398,"elapsed_within_degrees":4.0065},"yoga":{"number":15,"name":"Vajra","sum_longitude":191.7862},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.816,"elongation":42.893},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.816,"opposition_distance":137.107}},"eclipse_window_40days":[]},"city":{"slug":"badrinath","name":"Badarīnāth","lat":30.7433,"lon":79.4938,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha","elevation_m":3133},"tier2":{"city":{"slug":"badrinath","name":"Badarīnāth","lat":30.7433,"lon":79.4938,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha","elevation_m":3133},"sunriseLocal":"07:09","sunsetLocal":"17:20","solarNoonLocal":"12:15","dayLengthHours":10.177816040298682,"dayLengthDisplay":"10 Hours 10 Mins 40 Secs","nightLengthDisplay":"13 Hours 49 Mins 20 Secs","moonriseLocal":"09:30","moonsetLocal":"20:21","rahuKala":{"name":"Rāhu Kāla","start":"12:15","end":"13:31","startHours":12.24713490833787,"endHours":13.519361913375203,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:26","end":"09:42","startHours":8.430453893225863,"endHours":9.702680898263198,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:58","end":"12:15","startHours":10.974907903300533,"endHours":12.24713490833787,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:32","end":"09:52","startHours":9.533050630924887,"endHours":9.87231116560151,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:35","end":"07:51","startHours":7.582302556534306,"endHours":7.8537109842756045,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:35","startHours":11.907874373661247,"endHours":12.586395443014492,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:48","end":"06:29","startHours":5.801184749482037,"endHours":6.479705818835282,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:19","end":"07:09","startHours":6.310075551496971,"endHours":7.158226888188528,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:37","startHours":13.943437581720982,"endHours":14.621958651074227,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:08","end":"17:32","startHours":17.13604292848721,"endHours":17.53604292848721,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:20","end":"17:46","startHours":17.33604292848721,"endHours":17.76011859683299,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:05","end":"18:50","startHours":17.08604292848721,"endHours":18.83604292848721,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:35","startHours":23.907874373661247,"endHours":24.586395443014492,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:09","end":"08:26","startHours":7.158226888188528,"endHours":8.430453893225863,"quality":"auspicious"},{"name":"Amṛta","start":"08:26","end":"09:42","startHours":8.430453893225863,"endHours":9.702680898263198,"quality":"auspicious"},{"name":"Kāla","start":"09:42","end":"10:58","startHours":9.702680898263198,"endHours":10.974907903300533,"quality":"inauspicious"},{"name":"Śubha","start":"10:58","end":"12:15","startHours":10.974907903300533,"endHours":12.24713490833787,"quality":"auspicious"},{"name":"Roga","start":"12:15","end":"13:31","startHours":12.24713490833787,"endHours":13.519361913375203,"quality":"inauspicious"},{"name":"Udveg","start":"13:31","end":"14:47","startHours":13.519361913375203,"endHours":14.79158891841254,"quality":"inauspicious"},{"name":"Chala","start":"14:47","end":"16:04","startHours":14.79158891841254,"endHours":16.063815923449873,"quality":"neutral"},{"name":"Labha","start":"16:04","end":"17:20","startHours":16.063815923449873,"endHours":17.33604292848721,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:20","end":"19:04","startHours":17.33604292848721,"endHours":19.063815923449873,"quality":"inauspicious"},{"name":"Chala","start":"19:04","end":"20:47","startHours":19.063815923449873,"endHours":20.79158891841254,"quality":"neutral"},{"name":"Labha","start":"20:47","end":"22:31","startHours":20.79158891841254,"endHours":22.519361913375203,"quality":"auspicious"},{"name":"Amṛta","start":"22:31","end":"00:15","startHours":22.519361913375203,"endHours":24.24713490833787,"quality":"auspicious"},{"name":"Kāla","start":"00:15","end":"01:58","startHours":24.24713490833787,"endHours":25.974907903300533,"quality":"inauspicious"},{"name":"Śubha","start":"01:58","end":"03:42","startHours":25.974907903300533,"endHours":27.702680898263196,"quality":"auspicious"},{"name":"Roga","start":"03:42","end":"05:26","startHours":27.702680898263196,"endHours":29.430453893225863,"quality":"inauspicious"},{"name":"Udveg","start":"05:26","end":"07:09","startHours":29.430453893225863,"endHours":31.15822688818853,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:09","end":"08:09","startHours":7.158226888188528,"endHours":8.158226888188528,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:09","end":"09:09","startHours":8.158226888188528,"endHours":9.158226888188528,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:09","end":"10:09","startHours":9.158226888188528,"endHours":10.158226888188528,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:09","end":"11:09","startHours":10.158226888188528,"endHours":11.158226888188528,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:09","end":"12:09","startHours":11.158226888188528,"endHours":12.158226888188528,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:09","end":"13:09","startHours":12.158226888188528,"endHours":13.158226888188528,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:09","end":"14:09","startHours":13.158226888188528,"endHours":14.158226888188528,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:09","end":"15:09","startHours":14.158226888188528,"endHours":15.158226888188528,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:09","end":"16:09","startHours":15.158226888188528,"endHours":16.15822688818853,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:09","end":"17:09","startHours":16.15822688818853,"endHours":17.15822688818853,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:09","end":"18:09","startHours":17.15822688818853,"endHours":18.15822688818853,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:09","end":"19:09","startHours":18.15822688818853,"endHours":19.15822688818853,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:09","end":"20:09","startHours":19.15822688818853,"endHours":20.15822688818853,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:09","end":"21:09","startHours":20.15822688818853,"endHours":21.15822688818853,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:09","end":"22:09","startHours":21.15822688818853,"endHours":22.15822688818853,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:09","end":"23:09","startHours":22.15822688818853,"endHours":23.15822688818853,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:09","end":"00:09","startHours":23.15822688818853,"endHours":24.15822688818853,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:09","end":"01:09","startHours":24.15822688818853,"endHours":25.15822688818853,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:09","end":"02:09","startHours":25.15822688818853,"endHours":26.15822688818853,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:09","end":"03:09","startHours":26.15822688818853,"endHours":27.15822688818853,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:09","end":"04:09","startHours":27.15822688818853,"endHours":28.15822688818853,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:09","end":"05:09","startHours":28.15822688818853,"endHours":29.15822688818853,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:09","end":"06:09","startHours":29.15822688818853,"endHours":30.15822688818853,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:09","end":"07:09","startHours":30.15822688818853,"endHours":31.15822688818853,"planetary_lord":"Sun"}],"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":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"South-West","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"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":-23.179319788170773,"eotMinutes":-2.803294500272213,"ayanamsa":23.6015}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"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 Caturthī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"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":"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":[]},"validity":{"eternal":false,"location_specific":"badrinath"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 30, 1981 CE · Badarīnāth · Vidhyamitra","description":"December 30, 1981 CE for Badarīnāth: Śukla Caturthī, sūryodaya 07:09, sūryāsta 17:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/badrinath/1981-12-30","hreflang_alternates":{"en":"https://vidhyamitra.com/city/badrinath/1981-12-30","sa":"https://sa.vidhyamitra.com/city/badrinath/1981-12-30","hi":"https://hi.vidhyamitra.com/city/badrinath/1981-12-30","x-default":"https://vidhyamitra.com/city/badrinath/1981-12-30"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T13:50:02.407Z","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":"2026-05-31T13:50:02.407Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T13:50:02.407Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}