{"id":"vidhyamitra:city-day:dhanbad:1981-12-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/dhanbad/1981-12-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-12-10","date_display":"December 10, 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":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444948.770833,"kali_year":5083,"ahargana":1856483.2708,"sun":{"sidereal_longitude":233.9105,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":36.0429,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":162.1325,"elapsed_within_tithi_degrees":6.1325},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":36.0429,"elapsed_within_degrees":9.3763},"yoga":{"number":21,"name":"Siddha","sum_longitude":269.9534},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444948.770833,"ahargana":1856483.2708,"kali_year":5083,"ayanamsa_lahiri":23.6007,"grahas":{"sun":{"sidereal_longitude":234.29443500000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":35.34633500000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false,"latitude":-3.8374},"mars":{"sidereal_longitude":153.76113499999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":234.195335,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":189.26163500000007,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":277.4662350000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":176.04963500000008,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":94.5823,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":274.5823,"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":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444948.770833,"kali_year":5083,"ahargana":1856483.2708,"sun":{"sidereal_longitude":233.9105,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":36.0429,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":162.1325,"elapsed_within_tithi_degrees":6.1325},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":36.0429,"elapsed_within_degrees":9.3763},"yoga":{"number":21,"name":"Siddha","sum_longitude":269.9534},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.837,"elongation":162.132},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.837,"opposition_distance":17.868}},"eclipse_window_40days":[]},"city":{"slug":"dhanbad","name":"Dhanbad, Jharkhand","lat":23.7957,"lon":86.4304,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"dhanbad","name":"Dhanbad, Jharkhand","lat":23.7957,"lon":86.4304,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"sunriseLocal":"06:17","sunsetLocal":"16:59","solarNoonLocal":"11:38","dayLengthHours":10.70355236074573,"dayLengthDisplay":"10 Hours 42 Mins 13 Secs","nightLengthDisplay":"13 Hours 17 Mins 47 Secs","moonriseLocal":"15:43","moonsetLocal":"05:02","rahuKala":{"name":"Rāhu Kāla","start":"12:58","end":"14:18","startHours":12.968750512788965,"endHours":14.306694557882182,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:17","end":"07:37","startHours":6.279030287322884,"endHours":7.616974332416101,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:57","end":"10:18","startHours":8.954918377509317,"endHours":10.292862422602532,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:47","end":"09:08","startHours":8.776525838163554,"endHours":9.133310916855079,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:44","end":"07:01","startHours":6.72501163568729,"endHours":7.010439698640509,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:16","end":"11:59","startHours":11.274021389004224,"endHours":11.987591546387273,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:51","end":"05:34","startHours":4.851889972556787,"endHours":5.565460129939836,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:23","end":"06:17","startHours":5.387067590594073,"endHours":6.279030287322884,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:25","end":"14:08","startHours":13.41473186115337,"endHours":14.12830201853642,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:47","end":"17:11","startHours":16.782582648068615,"endHours":17.182582648068614,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:59","end":"17:26","startHours":16.982582648068615,"endHours":17.42856399643302,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:44","end":"18:29","startHours":16.732582648068615,"endHours":18.482582648068615,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:16","end":"23:59","startHours":23.274021389004226,"endHours":23.98759154638727,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:17","end":"07:37","startHours":6.279030287322884,"endHours":7.616974332416101,"quality":"auspicious"},{"name":"Roga","start":"07:37","end":"08:57","startHours":7.616974332416101,"endHours":8.954918377509317,"quality":"inauspicious"},{"name":"Udveg","start":"08:57","end":"10:18","startHours":8.954918377509317,"endHours":10.292862422602532,"quality":"inauspicious"},{"name":"Chala","start":"10:18","end":"11:38","startHours":10.292862422602532,"endHours":11.630806467695749,"quality":"neutral"},{"name":"Labha","start":"11:38","end":"12:58","startHours":11.630806467695749,"endHours":12.968750512788965,"quality":"auspicious"},{"name":"Amṛta","start":"12:58","end":"14:18","startHours":12.968750512788965,"endHours":14.306694557882182,"quality":"auspicious"},{"name":"Kāla","start":"14:18","end":"15:39","startHours":14.306694557882182,"endHours":15.644638602975398,"quality":"inauspicious"},{"name":"Śubha","start":"15:39","end":"16:59","startHours":15.644638602975398,"endHours":16.982582648068615,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"16:59","end":"18:39","startHours":16.982582648068615,"endHours":18.644638602975398,"quality":"auspicious"},{"name":"Kāla","start":"18:39","end":"20:18","startHours":18.644638602975398,"endHours":20.30669455788218,"quality":"inauspicious"},{"name":"Śubha","start":"20:18","end":"21:58","startHours":20.30669455788218,"endHours":21.968750512788965,"quality":"auspicious"},{"name":"Roga","start":"21:58","end":"23:38","startHours":21.968750512788965,"endHours":23.63080646769575,"quality":"inauspicious"},{"name":"Udveg","start":"23:38","end":"01:18","startHours":23.63080646769575,"endHours":25.292862422602532,"quality":"inauspicious"},{"name":"Chala","start":"01:18","end":"02:57","startHours":25.292862422602532,"endHours":26.954918377509316,"quality":"neutral"},{"name":"Labha","start":"02:57","end":"04:37","startHours":26.954918377509316,"endHours":28.6169743324161,"quality":"auspicious"},{"name":"Amṛta","start":"04:37","end":"06:17","startHours":28.6169743324161,"endHours":30.279030287322882,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:17","end":"07:17","startHours":6.279030287322884,"endHours":7.279030287322884,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:17","end":"08:17","startHours":7.279030287322884,"endHours":8.279030287322884,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:17","end":"09:17","startHours":8.279030287322884,"endHours":9.279030287322884,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:17","end":"10:17","startHours":9.279030287322884,"endHours":10.279030287322884,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:17","end":"11:17","startHours":10.279030287322884,"endHours":11.279030287322884,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:17","end":"12:17","startHours":11.279030287322884,"endHours":12.279030287322884,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:17","end":"13:17","startHours":12.279030287322884,"endHours":13.279030287322884,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:17","end":"14:17","startHours":13.279030287322884,"endHours":14.279030287322884,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:17","end":"15:17","startHours":14.279030287322884,"endHours":15.279030287322884,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:17","end":"16:17","startHours":15.279030287322884,"endHours":16.279030287322882,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:17","end":"17:17","startHours":16.279030287322882,"endHours":17.279030287322882,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:17","end":"18:17","startHours":17.279030287322882,"endHours":18.279030287322882,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:17","end":"19:17","startHours":18.279030287322882,"endHours":19.279030287322882,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:17","end":"20:17","startHours":19.279030287322882,"endHours":20.279030287322882,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:17","end":"21:17","startHours":20.279030287322882,"endHours":21.279030287322882,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:17","end":"22:17","startHours":21.279030287322882,"endHours":22.279030287322882,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:17","end":"23:17","startHours":22.279030287322882,"endHours":23.279030287322882,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:17","end":"00:17","startHours":23.279030287322882,"endHours":24.279030287322882,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:17","end":"01:17","startHours":24.279030287322882,"endHours":25.279030287322882,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:17","end":"02:17","startHours":25.279030287322882,"endHours":26.279030287322882,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:17","end":"03:17","startHours":26.279030287322882,"endHours":27.279030287322882,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:17","end":"04:17","startHours":27.279030287322882,"endHours":28.279030287322882,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:17","end":"05:17","startHours":28.279030287322882,"endHours":29.279030287322882,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:17","end":"06:17","startHours":29.279030287322882,"endHours":30.279030287322882,"planetary_lord":"Moon"}],"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","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-22.885390663365694,"eotMinutes":6.4300119382551255,"ayanamsa":23.6007}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Caturdaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"dhanbad"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 10, 1981 CE · Dhanbad, Jharkhand · Vidhyamitra","description":"December 10, 1981 CE for Dhanbad, Jharkhand: Śukla Caturdaśī, sūryodaya 06:17, sūryāsta 16:59.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/dhanbad/1981-12-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/dhanbad/1981-12-10","sa":"https://sa.vidhyamitra.com/city/dhanbad/1981-12-10","hi":"https://hi.vidhyamitra.com/city/dhanbad/1981-12-10","x-default":"https://vidhyamitra.com/city/dhanbad/1981-12-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T20:55:38.194Z","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":"2026-06-01T20:55:38.194Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T20:55:38.194Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}