{"id":"vidhyamitra:city-day:vrindavan:2180-12-29:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/2180-12-29","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2180-12-29","date_display":"December 29, 2180 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":2180,"month":12,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517651.770833,"kali_year":5282,"ahargana":1929186.2708,"sun":{"sidereal_longitude":250.8561,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":36.8739,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":146.0178,"elapsed_within_tithi_degrees":2.0178},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":36.8739,"elapsed_within_degrees":10.2072},"yoga":{"number":22,"name":"Sādhya","sum_longitude":287.7299},"karana":{"half_tithi_index":24,"name":"Kaulava"},"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":2180,"month":12,"day":29,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517651.770833,"ahargana":1929186.2708,"kali_year":5282,"ayanamsa_lahiri":26.3813,"grahas":{"sun":{"sidereal_longitude":251.564746,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":38.75754599999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false,"latitude":-1.1216},"mars":{"sidereal_longitude":48.59684600000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":264.40644599999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":113.11134600000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":239.94714599999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":79.479646,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":202.4275,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":22.4275,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":2180,"month":12,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517651.770833,"kali_year":5282,"ahargana":1929186.2708,"sun":{"sidereal_longitude":250.8561,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":36.8739,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":146.0178,"elapsed_within_tithi_degrees":2.0178},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":36.8739,"elapsed_within_degrees":10.2072},"yoga":{"number":22,"name":"Sādhya","sum_longitude":287.7299},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.122,"elongation":146.018},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.122,"opposition_distance":33.982}},"eclipse_window_40days":[]},"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"07:09","sunsetLocal":"17:34","solarNoonLocal":"12:22","dayLengthHours":10.415923038375812,"dayLengthDisplay":"10 Hours 24 Mins 57 Secs","nightLengthDisplay":"13 Hours 35 Mins 03 Secs","moonriseLocal":"15:21","moonsetLocal":"05:00","rahuKala":{"name":"Rāhu Kāla","start":"11:04","end":"12:22","startHours":11.059835894279184,"endHours":12.361826274076162,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:58","end":"16:16","startHours":14.965807033670114,"endHours":16.26779741346709,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:27","end":"09:45","startHours":8.455855134685232,"endHours":9.757845514482208,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:35","end":"09:56","startHours":9.584246797175943,"endHours":9.931444231788472,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:35","end":"07:52","startHours":7.587861548153914,"endHours":7.865619495843935,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:01","end":"12:43","startHours":12.014628839463633,"endHours":12.709023708688687,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:46","end":"06:28","startHours":5.765075016438146,"endHours":6.4594698856632,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:17","end":"07:09","startHours":6.285871168356937,"endHours":7.153864754888255,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:06","end":"14:48","startHours":14.097813447138796,"endHours":14.79220831636385,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:22","end":"17:46","startHours":17.369787793264067,"endHours":17.769787793264065,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:34","end":"18:00","startHours":17.569787793264066,"endHours":18.003784586529726,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:19","end":"19:04","startHours":17.319787793264066,"endHours":19.069787793264066,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:01","end":"00:43","startHours":24.01462883946363,"endHours":24.709023708688687,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:09","end":"08:27","startHours":7.153864754888255,"endHours":8.455855134685232,"quality":"neutral"},{"name":"Labha","start":"08:27","end":"09:45","startHours":8.455855134685232,"endHours":9.757845514482208,"quality":"auspicious"},{"name":"Amṛta","start":"09:45","end":"11:04","startHours":9.757845514482208,"endHours":11.059835894279184,"quality":"auspicious"},{"name":"Kāla","start":"11:04","end":"12:22","startHours":11.059835894279184,"endHours":12.361826274076162,"quality":"inauspicious"},{"name":"Śubha","start":"12:22","end":"13:40","startHours":12.361826274076162,"endHours":13.663816653873138,"quality":"auspicious"},{"name":"Roga","start":"13:40","end":"14:58","startHours":13.663816653873138,"endHours":14.965807033670114,"quality":"inauspicious"},{"name":"Udveg","start":"14:58","end":"16:16","startHours":14.965807033670114,"endHours":16.26779741346709,"quality":"inauspicious"},{"name":"Chala","start":"16:16","end":"17:34","startHours":16.26779741346709,"endHours":17.569787793264066,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:34","end":"19:16","startHours":17.569787793264066,"endHours":19.26779741346709,"quality":"inauspicious"},{"name":"Udveg","start":"19:16","end":"20:58","startHours":19.26779741346709,"endHours":20.965807033670114,"quality":"inauspicious"},{"name":"Chala","start":"20:58","end":"22:40","startHours":20.965807033670114,"endHours":22.663816653873134,"quality":"neutral"},{"name":"Labha","start":"22:40","end":"00:22","startHours":22.663816653873134,"endHours":24.361826274076158,"quality":"auspicious"},{"name":"Amṛta","start":"00:22","end":"02:04","startHours":24.361826274076158,"endHours":26.059835894279182,"quality":"auspicious"},{"name":"Kāla","start":"02:04","end":"03:45","startHours":26.059835894279182,"endHours":27.757845514482206,"quality":"inauspicious"},{"name":"Śubha","start":"03:45","end":"05:27","startHours":27.757845514482206,"endHours":29.45585513468523,"quality":"auspicious"},{"name":"Roga","start":"05:27","end":"07:09","startHours":29.45585513468523,"endHours":31.153864754888254,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:09","end":"08:09","startHours":7.153864754888255,"endHours":8.153864754888254,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:09","end":"09:09","startHours":8.153864754888254,"endHours":9.153864754888254,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:09","end":"10:09","startHours":9.153864754888254,"endHours":10.153864754888254,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:09","end":"11:09","startHours":10.153864754888254,"endHours":11.153864754888254,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:09","end":"12:09","startHours":11.153864754888254,"endHours":12.153864754888254,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:09","end":"13:09","startHours":12.153864754888254,"endHours":13.153864754888254,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:09","end":"14:09","startHours":13.153864754888254,"endHours":14.153864754888254,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:09","end":"15:09","startHours":14.153864754888254,"endHours":15.153864754888254,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:09","end":"16:09","startHours":15.153864754888254,"endHours":16.153864754888254,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:09","end":"17:09","startHours":16.153864754888254,"endHours":17.153864754888254,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:09","end":"18:09","startHours":17.153864754888254,"endHours":18.153864754888254,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:09","end":"19:09","startHours":18.153864754888254,"endHours":19.153864754888254,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:09","end":"20:09","startHours":19.153864754888254,"endHours":20.153864754888254,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:09","end":"21:09","startHours":20.153864754888254,"endHours":21.153864754888254,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:09","end":"22:09","startHours":21.153864754888254,"endHours":22.153864754888254,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:09","end":"23:09","startHours":22.153864754888254,"endHours":23.153864754888254,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:09","end":"00:09","startHours":23.153864754888254,"endHours":24.153864754888254,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:09","end":"01:09","startHours":24.153864754888254,"endHours":25.153864754888254,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:09","end":"02:09","startHours":25.153864754888254,"endHours":26.153864754888254,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:09","end":"03:09","startHours":26.153864754888254,"endHours":27.153864754888254,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:09","end":"04:09","startHours":27.153864754888254,"endHours":28.153864754888254,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:09","end":"05:09","startHours":28.153864754888254,"endHours":29.153864754888254,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:09","end":"06:09","startHours":29.153864754888254,"endHours":30.153864754888254,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:09","end":"07:09","startHours":30.153864754888254,"endHours":31.153864754888254,"planetary_lord":"Mars"}],"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":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Gada","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":-23.19824193983782,"eotMinutes":-2.3467764445695645,"ayanamsa":26.3813}},"calendars":{"vikram_samvat":2237,"vikram_samvatsara":"Vijaya","saka_samvat":2102,"saka_samvatsara":"Vikrama","bengali_samvat":1587,"malayalam_era":1356,"nanakshahi_year":711,"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":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Trayodaśī · Vikram 2237 Vijaya · Śaka 2102 Vikrama"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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":"-3137-10-04","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":"vrindavan"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 29, 2180 CE · Vṛndāvana · Vidhyamitra","description":"December 29, 2180 CE for Vṛndāvana: Śukla Trayodaśī, sūryodaya 07:09, sūryāsta 17:34.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/2180-12-29","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/2180-12-29","sa":"https://sa.vidhyamitra.com/city/vrindavan/2180-12-29","hi":"https://hi.vidhyamitra.com/city/vrindavan/2180-12-29","x-default":"https://vidhyamitra.com/city/vrindavan/2180-12-29"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T00:28:01.964Z","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":"2026-06-01T00:28:01.964Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T00:28:01.964Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}