{"id":"vidhyamitra:city-day:beijing:2001-12-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/beijing/2001-12-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2001-12-13","date_display":"December 13, 2001 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":2001,"month":12,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452256.770833,"kali_year":5103,"ahargana":1863791.2708,"sun":{"sidereal_longitude":236.806,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":215.5583,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":338.7523,"elapsed_within_tithi_degrees":2.7523},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":215.5583,"elapsed_within_degrees":2.225},"yoga":{"number":7,"name":"Sukarma","sum_longitude":92.3643},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"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":2001,"month":12,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2452256.770833,"ahargana":1863791.2708,"kali_year":5103,"ayanamsa_lahiri":23.8802,"grahas":{"sun":{"sidereal_longitude":237.213215,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":214.74371500000007,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false,"latitude":2.3703},"mars":{"sidereal_longitude":309.134315,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":241.71111500000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":79.13991499999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":229.43271500000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":46.72531500000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":67.3693,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":247.3693,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","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":2001,"month":12,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452256.770833,"kali_year":5103,"ahargana":1863791.2708,"sun":{"sidereal_longitude":236.806,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":215.5583,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":338.7523,"elapsed_within_tithi_degrees":2.7523},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":215.5583,"elapsed_within_degrees":2.225},"yoga":{"number":7,"name":"Sukarma","sum_longitude":92.3643},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.37,"elongation":21.248},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.37,"opposition_distance":158.752}},"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":"07:28","sunsetLocal":"16:51","solarNoonLocal":"12:09","dayLengthHours":9.375982411018365,"dayLengthDisplay":"9 Hours 22 Mins 34 Secs","nightLengthDisplay":"14 Hours 37 Mins 26 Secs","moonriseLocal":"05:46","moonsetLocal":"15:33","rahuKala":{"name":"Rāhu Kāla","start":"13:20","end":"14:30","startHours":13.327340297220328,"endHours":14.499338098597624,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:28","end":"08:38","startHours":7.46735129033385,"endHours":8.639349091711146,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:49","end":"10:59","startHours":9.81134689308844,"endHours":10.983344694465737,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:39","end":"09:58","startHours":9.655080519571468,"endHours":9.967613266605415,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:51","end":"08:06","startHours":7.858017224126282,"endHours":8.108043421753438,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:28","startHours":11.842809748809087,"endHours":12.467875242876977,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:13","end":"06:51","startHours":6.2172203021980685,"endHours":6.842285796265959,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:41","end":"07:28","startHours":6.686019422748986,"endHours":7.46735129033385,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:43","end":"14:21","startHours":13.71800623101276,"endHours":14.343071725080652,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:39","end":"17:03","startHours":16.643333701352216,"endHours":17.043333701352214,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:51","end":"17:14","startHours":16.843333701352215,"endHours":17.233999635144645,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:36","end":"18:21","startHours":16.593333701352215,"endHours":18.343333701352215,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:28","startHours":23.842809748809085,"endHours":24.467875242876975,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:28","end":"08:38","startHours":7.46735129033385,"endHours":8.639349091711146,"quality":"auspicious"},{"name":"Roga","start":"08:38","end":"09:49","startHours":8.639349091711146,"endHours":9.81134689308844,"quality":"inauspicious"},{"name":"Udveg","start":"09:49","end":"10:59","startHours":9.81134689308844,"endHours":10.983344694465737,"quality":"inauspicious"},{"name":"Chala","start":"10:59","end":"12:09","startHours":10.983344694465737,"endHours":12.155342495843033,"quality":"neutral"},{"name":"Labha","start":"12:09","end":"13:20","startHours":12.155342495843033,"endHours":13.327340297220328,"quality":"auspicious"},{"name":"Amṛta","start":"13:20","end":"14:30","startHours":13.327340297220328,"endHours":14.499338098597624,"quality":"auspicious"},{"name":"Kāla","start":"14:30","end":"15:40","startHours":14.499338098597624,"endHours":15.671335899974919,"quality":"inauspicious"},{"name":"Śubha","start":"15:40","end":"16:51","startHours":15.671335899974919,"endHours":16.843333701352215,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"16:51","end":"18:40","startHours":16.843333701352215,"endHours":18.67133589997492,"quality":"auspicious"},{"name":"Kāla","start":"18:40","end":"20:30","startHours":18.67133589997492,"endHours":20.499338098597622,"quality":"inauspicious"},{"name":"Śubha","start":"20:30","end":"22:20","startHours":20.499338098597622,"endHours":22.327340297220328,"quality":"auspicious"},{"name":"Roga","start":"22:20","end":"00:09","startHours":22.327340297220328,"endHours":24.155342495843033,"quality":"inauspicious"},{"name":"Udveg","start":"00:09","end":"01:59","startHours":24.155342495843033,"endHours":25.983344694465735,"quality":"inauspicious"},{"name":"Chala","start":"01:59","end":"03:49","startHours":25.983344694465735,"endHours":27.81134689308844,"quality":"neutral"},{"name":"Labha","start":"03:49","end":"05:38","startHours":27.81134689308844,"endHours":29.639349091711146,"quality":"auspicious"},{"name":"Amṛta","start":"05:38","end":"07:28","startHours":29.639349091711146,"endHours":31.467351290333852,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:28","end":"08:28","startHours":7.46735129033385,"endHours":8.46735129033385,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:28","end":"09:28","startHours":8.46735129033385,"endHours":9.46735129033385,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:28","end":"10:28","startHours":9.46735129033385,"endHours":10.46735129033385,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:28","end":"11:28","startHours":10.46735129033385,"endHours":11.46735129033385,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:28","end":"12:28","startHours":11.46735129033385,"endHours":12.46735129033385,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:28","end":"13:28","startHours":12.46735129033385,"endHours":13.46735129033385,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:28","end":"14:28","startHours":13.46735129033385,"endHours":14.46735129033385,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:28","end":"15:28","startHours":14.46735129033385,"endHours":15.46735129033385,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:28","end":"16:28","startHours":15.46735129033385,"endHours":16.467351290333852,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:28","end":"17:28","startHours":16.467351290333852,"endHours":17.467351290333852,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:28","end":"18:28","startHours":17.467351290333852,"endHours":18.467351290333852,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:28","end":"19:28","startHours":18.467351290333852,"endHours":19.467351290333852,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:28","end":"20:28","startHours":19.467351290333852,"endHours":20.467351290333852,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:28","end":"21:28","startHours":20.467351290333852,"endHours":21.467351290333852,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:28","end":"22:28","startHours":21.467351290333852,"endHours":22.467351290333852,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:28","end":"23:28","startHours":22.467351290333852,"endHours":23.467351290333852,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:28","end":"00:28","startHours":23.467351290333852,"endHours":24.467351290333852,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:28","end":"01:28","startHours":24.467351290333852,"endHours":25.467351290333852,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:28","end":"02:28","startHours":25.467351290333852,"endHours":26.467351290333852,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:28","end":"03:28","startHours":26.467351290333852,"endHours":27.467351290333852,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:28","end":"04:28","startHours":27.467351290333852,"endHours":28.467351290333852,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:28","end":"05:28","startHours":28.467351290333852,"endHours":29.467351290333852,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:28","end":"06:28","startHours":29.467351290333852,"endHours":30.467351290333852,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:28","end":"07:28","startHours":30.467351290333852,"endHours":31.467351290333852,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"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":"South (Dakṣiṇa)","chandraVasa":"North-East","rahuVasa":"North-West","anandadiYoga":{"name":"Saumya","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":-23.137349218258787,"eotMinutes":5.090650249418121,"ayanamsa":23.8802}},"calendars":{"vikram_samvat":2058,"vikram_samvatsara":"Jaya","saka_samvat":1923,"saka_samvatsara":"Vṛṣa","bengali_samvat":1408,"malayalam_era":1177,"nanakshahi_year":532,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Kārtika","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 Kṛṣṇa Caturdaśī · Vikram 2058 Jaya · Śaka 1923 Vṛṣa"},"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":"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":[]},"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 13, 2001 CE · Beijing, Beijing · Vidhyamitra","description":"December 13, 2001 CE for Beijing, Beijing: Kṛṣṇa Caturdaśī, sūryodaya 07:28, sūryāsta 16:51.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/beijing/2001-12-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/beijing/2001-12-13","sa":"https://sa.vidhyamitra.com/city/beijing/2001-12-13","hi":"https://hi.vidhyamitra.com/city/beijing/2001-12-13","x-default":"https://vidhyamitra.com/city/beijing/2001-12-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T10:00:41.696Z","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":"2026-06-02T10:00:41.696Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T10:00:41.696Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}