{"id":"vidhyamitra:city-day:beijing:1981-12-25:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/beijing/1981-12-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-12-25","date_display":"December 25, 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":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444963.770833,"kali_year":5083,"ahargana":1856498.2708,"sun":{"sidereal_longitude":249.3067,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":233.7186,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":344.4119,"elapsed_within_tithi_degrees":8.4119},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":233.7186,"elapsed_within_degrees":7.052},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":123.0253},"karana":{"half_tithi_index":57,"name":"Śakuni"},"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":1981,"month":12,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444963.770833,"ahargana":1856498.2708,"kali_year":5083,"ayanamsa_lahiri":23.6013,"grahas":{"sun":{"sidereal_longitude":249.55946200000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"moon":{"sidereal_longitude":234.623962,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false,"latitude":2.8949},"mars":{"sidereal_longitude":160.71676200000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":258.0441619999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":191.83016199999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":284.641262,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":true},"saturn":{"sidereal_longitude":177.15276199999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":93.7875,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":273.7875,"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":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444963.770833,"kali_year":5083,"ahargana":1856498.2708,"sun":{"sidereal_longitude":249.3067,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":233.7186,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":344.4119,"elapsed_within_tithi_degrees":8.4119},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":233.7186,"elapsed_within_degrees":7.052},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":123.0253},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.895,"elongation":15.588},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.895,"opposition_distance":164.412}},"eclipse_window_40days":[]},"city":{"slug":"beijing","name":"Beijing, Beijing","lat":39.9075,"lon":116.3972,"tz_offset_hours":8,"state":"Beijing","country":"CN","tier":"mega"},"tier2":{"city":{"slug":"beijing","name":"Beijing, Beijing","lat":39.9075,"lon":116.3972,"tz_offset_hours":8,"state":"Beijing","country":"CN","tier":"mega"},"sunriseLocal":"07:35","sunsetLocal":"16:55","solarNoonLocal":"12:15","dayLengthHours":9.339601083014838,"dayLengthDisplay":"9 Hours 20 Mins 23 Secs","nightLengthDisplay":"14 Hours 39 Mins 37 Secs","moonriseLocal":"06:34","moonsetLocal":"15:56","rahuKala":{"name":"Rāhu Kāla","start":"11:05","end":"12:15","startHours":11.080960813657637,"endHours":12.248410949034492,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:35","end":"15:45","startHours":14.5833112197882,"endHours":15.750761355165055,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:45","end":"09:55","startHours":8.746060542903928,"endHours":9.913510678280783,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:45","end":"10:04","startHours":9.757850660230535,"endHours":10.06917069633103,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:58","end":"08:13","startHours":7.967760452652691,"endHours":8.216816481533087,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:34","startHours":11.937090912933996,"endHours":12.559730985134987,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:20","end":"06:57","startHours":6.333330263125094,"endHours":6.955970335326084,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:48","end":"07:35","startHours":6.800310317275836,"endHours":7.578610407527073,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:48","end":"14:26","startHours":13.805011129536965,"endHours":14.427651201737953,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:43","end":"17:07","startHours":16.71821149054191,"endHours":17.11821149054191,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:55","end":"17:18","startHours":16.91821149054191,"endHours":17.30736153566753,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:40","end":"18:25","startHours":16.66821149054191,"endHours":18.41821149054191,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:34","startHours":23.937090912934,"endHours":24.559730985134987,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:35","end":"08:45","startHours":7.578610407527073,"endHours":8.746060542903928,"quality":"neutral"},{"name":"Labha","start":"08:45","end":"09:55","startHours":8.746060542903928,"endHours":9.913510678280783,"quality":"auspicious"},{"name":"Amṛta","start":"09:55","end":"11:05","startHours":9.913510678280783,"endHours":11.080960813657637,"quality":"auspicious"},{"name":"Kāla","start":"11:05","end":"12:15","startHours":11.080960813657637,"endHours":12.248410949034492,"quality":"inauspicious"},{"name":"Śubha","start":"12:15","end":"13:25","startHours":12.248410949034492,"endHours":13.415861084411347,"quality":"auspicious"},{"name":"Roga","start":"13:25","end":"14:35","startHours":13.415861084411347,"endHours":14.5833112197882,"quality":"inauspicious"},{"name":"Udveg","start":"14:35","end":"15:45","startHours":14.5833112197882,"endHours":15.750761355165055,"quality":"inauspicious"},{"name":"Chala","start":"15:45","end":"16:55","startHours":15.750761355165055,"endHours":16.91821149054191,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"16:55","end":"18:45","startHours":16.91821149054191,"endHours":18.750761355165057,"quality":"inauspicious"},{"name":"Udveg","start":"18:45","end":"20:35","startHours":18.750761355165057,"endHours":20.5833112197882,"quality":"inauspicious"},{"name":"Chala","start":"20:35","end":"22:25","startHours":20.5833112197882,"endHours":22.415861084411347,"quality":"neutral"},{"name":"Labha","start":"22:25","end":"00:15","startHours":22.415861084411347,"endHours":24.248410949034493,"quality":"auspicious"},{"name":"Amṛta","start":"00:15","end":"02:05","startHours":24.248410949034493,"endHours":26.080960813657637,"quality":"auspicious"},{"name":"Kāla","start":"02:05","end":"03:55","startHours":26.080960813657637,"endHours":27.913510678280783,"quality":"inauspicious"},{"name":"Śubha","start":"03:55","end":"05:45","startHours":27.913510678280783,"endHours":29.746060542903926,"quality":"auspicious"},{"name":"Roga","start":"05:45","end":"07:35","startHours":29.746060542903926,"endHours":31.578610407527073,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:35","end":"08:35","startHours":7.578610407527073,"endHours":8.578610407527073,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:35","end":"09:35","startHours":8.578610407527073,"endHours":9.578610407527073,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:35","end":"10:35","startHours":9.578610407527073,"endHours":10.578610407527073,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:35","end":"11:35","startHours":10.578610407527073,"endHours":11.578610407527073,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:35","end":"12:35","startHours":11.578610407527073,"endHours":12.578610407527073,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:35","end":"13:35","startHours":12.578610407527073,"endHours":13.578610407527073,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:35","end":"14:35","startHours":13.578610407527073,"endHours":14.578610407527073,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:35","end":"15:35","startHours":14.578610407527073,"endHours":15.578610407527073,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:35","end":"16:35","startHours":15.578610407527073,"endHours":16.578610407527073,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:35","end":"17:35","startHours":16.578610407527073,"endHours":17.578610407527073,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:35","end":"18:35","startHours":17.578610407527073,"endHours":18.578610407527073,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:35","end":"19:35","startHours":18.578610407527073,"endHours":19.578610407527073,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:35","end":"20:35","startHours":19.578610407527073,"endHours":20.578610407527073,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:35","end":"21:35","startHours":20.578610407527073,"endHours":21.578610407527073,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:35","end":"22:35","startHours":21.578610407527073,"endHours":22.578610407527073,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:35","end":"23:35","startHours":22.578610407527073,"endHours":23.578610407527073,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:35","end":"00:35","startHours":23.578610407527073,"endHours":24.578610407527073,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:35","end":"01:35","startHours":24.578610407527073,"endHours":25.578610407527073,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:35","end":"02:35","startHours":25.578610407527073,"endHours":26.578610407527073,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:35","end":"03:35","startHours":26.578610407527073,"endHours":27.578610407527073,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:35","end":"04:35","startHours":27.578610407527073,"endHours":28.578610407527073,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:35","end":"05:35","startHours":28.578610407527073,"endHours":29.578610407527073,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:35","end":"06:35","startHours":29.578610407527073,"endHours":30.578610407527073,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:35","end":"07:35","startHours":30.578610407527073,"endHours":31.578610407527073,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"South-East","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"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":-23.39872164233411,"eotMinutes":-0.4934569420694592,"ayanamsa":23.6013}},"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 Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Mārgaśīrṣa","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 Kṛṣṇa Caturdaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"beijing"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 25, 1981 CE · Beijing, Beijing · Vidhyamitra","description":"December 25, 1981 CE for Beijing, Beijing: Kṛṣṇa Caturdaśī, sūryodaya 07:35, sūryāsta 16:55.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/beijing/1981-12-25","hreflang_alternates":{"en":"https://vidhyamitra.com/city/beijing/1981-12-25","sa":"https://sa.vidhyamitra.com/city/beijing/1981-12-25","hi":"https://hi.vidhyamitra.com/city/beijing/1981-12-25","x-default":"https://vidhyamitra.com/city/beijing/1981-12-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T12:25:19.590Z","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":"2026-06-01T12:25:19.590Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T12:25:19.590Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}