{"id":"vidhyamitra:city-day:vrindavan:2181-12-30:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/2181-12-30","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2181-12-30","date_display":"December 30, 2181 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":2181,"month":12,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2518017.770833,"kali_year":5283,"ahargana":1929552.2708,"sun":{"sidereal_longitude":251.618,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":175.5943,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":283.9763,"elapsed_within_tithi_degrees":7.9763},"nakshatra":{"number":14,"name":"Citrā","pada":1,"moon_longitude":175.5943,"elapsed_within_degrees":2.2609},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":67.2123},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2181,"month":12,"day":30,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2518017.770833,"ahargana":1929552.2708,"kali_year":5283,"ayanamsa_lahiri":26.3953,"grahas":{"sun":{"sidereal_longitude":252.32156199999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":172.777062,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false,"latitude":-0.5822},"mars":{"sidereal_longitude":239.447862,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":232.31666199999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":144.54936199999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":208.47436200000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":94.581162,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":183.035,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":3.035,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"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":2181,"month":12,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2518017.770833,"kali_year":5283,"ahargana":1929552.2708,"sun":{"sidereal_longitude":251.618,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":175.5943,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":283.9763,"elapsed_within_tithi_degrees":7.9763},"nakshatra":{"number":14,"name":"Citrā","pada":1,"moon_longitude":175.5943,"elapsed_within_degrees":2.2609},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":67.2123},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.582,"elongation":76.024},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.582,"opposition_distance":103.976}},"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":"07:10","sunsetLocal":"17:35","solarNoonLocal":"12:22","dayLengthHours":10.419939181171774,"dayLengthDisplay":"10 Hours 25 Mins 12 Secs","nightLengthDisplay":"13 Hours 34 Mins 48 Secs","moonriseLocal":"01:17","moonsetLocal":"12:51","rahuKala":{"name":"Rāhu Kāla","start":"16:17","end":"17:35","startHours":16.276912101277286,"endHours":17.579404498923758,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:22","end":"13:40","startHours":12.369434908337873,"endHours":13.671927305984344,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:58","end":"16:17","startHours":14.974419703630815,"endHours":16.276912101277286,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:35","end":"09:56","startHours":9.590784460025398,"endHours":9.938115766064458,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:36","end":"07:52","startHours":7.593629450300808,"endHours":7.871494495132056,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:01","end":"12:43","startHours":12.022103602298811,"endHours":12.71676621437693,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:46","end":"06:28","startHours":5.770140093595748,"endHours":6.464802705673867,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:17","end":"07:10","startHours":6.291137052654337,"endHours":7.159465317751985,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:06","end":"14:48","startHours":14.106091438533166,"endHours":14.800754050611285,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:23","end":"17:47","startHours":17.37940449892376,"endHours":17.779404498923757,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:35","end":"18:01","startHours":17.579404498923758,"endHours":18.01356863147258,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:20","end":"19:05","startHours":17.329404498923758,"endHours":19.079404498923758,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:01","end":"00:43","startHours":24.022103602298813,"endHours":24.716766214376932,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"07:10","end":"08:28","startHours":7.159465317751985,"endHours":8.461957715398457,"quality":"inauspicious"},{"name":"Chala","start":"08:28","end":"09:46","startHours":8.461957715398457,"endHours":9.764450113044928,"quality":"neutral"},{"name":"Labha","start":"09:46","end":"11:04","startHours":9.764450113044928,"endHours":11.0669425106914,"quality":"auspicious"},{"name":"Amṛta","start":"11:04","end":"12:22","startHours":11.0669425106914,"endHours":12.369434908337873,"quality":"auspicious"},{"name":"Kāla","start":"12:22","end":"13:40","startHours":12.369434908337873,"endHours":13.671927305984344,"quality":"inauspicious"},{"name":"Śubha","start":"13:40","end":"14:58","startHours":13.671927305984344,"endHours":14.974419703630815,"quality":"auspicious"},{"name":"Roga","start":"14:58","end":"16:17","startHours":14.974419703630815,"endHours":16.276912101277286,"quality":"inauspicious"},{"name":"Udveg","start":"16:17","end":"17:35","startHours":16.276912101277286,"endHours":17.579404498923758,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:35","end":"19:17","startHours":17.579404498923758,"endHours":19.276912101277286,"quality":"auspicious"},{"name":"Roga","start":"19:17","end":"20:58","startHours":19.276912101277286,"endHours":20.974419703630815,"quality":"inauspicious"},{"name":"Udveg","start":"20:58","end":"22:40","startHours":20.974419703630815,"endHours":22.67192730598434,"quality":"inauspicious"},{"name":"Chala","start":"22:40","end":"00:22","startHours":22.67192730598434,"endHours":24.369434908337873,"quality":"neutral"},{"name":"Labha","start":"00:22","end":"02:04","startHours":24.369434908337873,"endHours":26.066942510691398,"quality":"auspicious"},{"name":"Amṛta","start":"02:04","end":"03:46","startHours":26.066942510691398,"endHours":27.764450113044926,"quality":"auspicious"},{"name":"Kāla","start":"03:46","end":"05:28","startHours":27.764450113044926,"endHours":29.461957715398455,"quality":"inauspicious"},{"name":"Śubha","start":"05:28","end":"07:10","startHours":29.461957715398455,"endHours":31.159465317751984,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:10","end":"08:10","startHours":7.159465317751985,"endHours":8.159465317751984,"planetary_lord":"Sun"},{"name":"Hora 2","start":"08:10","end":"09:10","startHours":8.159465317751984,"endHours":9.159465317751984,"planetary_lord":"Mars"},{"name":"Hora 3","start":"09:10","end":"10:10","startHours":9.159465317751984,"endHours":10.159465317751984,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"10:10","end":"11:10","startHours":10.159465317751984,"endHours":11.159465317751984,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"11:10","end":"12:10","startHours":11.159465317751984,"endHours":12.159465317751984,"planetary_lord":"Moon"},{"name":"Hora 6","start":"12:10","end":"13:10","startHours":12.159465317751984,"endHours":13.159465317751984,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"13:10","end":"14:10","startHours":13.159465317751984,"endHours":14.159465317751984,"planetary_lord":"Venus"},{"name":"Hora 8","start":"14:10","end":"15:10","startHours":14.159465317751984,"endHours":15.159465317751984,"planetary_lord":"Sun"},{"name":"Hora 9","start":"15:10","end":"16:10","startHours":15.159465317751984,"endHours":16.159465317751984,"planetary_lord":"Mars"},{"name":"Hora 10","start":"16:10","end":"17:10","startHours":16.159465317751984,"endHours":17.159465317751984,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"17:10","end":"18:10","startHours":17.159465317751984,"endHours":18.159465317751984,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"18:10","end":"19:10","startHours":18.159465317751984,"endHours":19.159465317751984,"planetary_lord":"Moon"},{"name":"Hora 13","start":"19:10","end":"20:10","startHours":19.159465317751984,"endHours":20.159465317751984,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"20:10","end":"21:10","startHours":20.159465317751984,"endHours":21.159465317751984,"planetary_lord":"Venus"},{"name":"Hora 15","start":"21:10","end":"22:10","startHours":21.159465317751984,"endHours":22.159465317751984,"planetary_lord":"Sun"},{"name":"Hora 16","start":"22:10","end":"23:10","startHours":22.159465317751984,"endHours":23.159465317751984,"planetary_lord":"Mars"},{"name":"Hora 17","start":"23:10","end":"00:10","startHours":23.159465317751984,"endHours":24.159465317751984,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"00:10","end":"01:10","startHours":24.159465317751984,"endHours":25.159465317751984,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"01:10","end":"02:10","startHours":25.159465317751984,"endHours":26.159465317751984,"planetary_lord":"Moon"},{"name":"Hora 20","start":"02:10","end":"03:10","startHours":26.159465317751984,"endHours":27.159465317751984,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"03:10","end":"04:10","startHours":27.159465317751984,"endHours":28.159465317751984,"planetary_lord":"Venus"},{"name":"Hora 22","start":"04:10","end":"05:10","startHours":28.159465317751984,"endHours":29.159465317751984,"planetary_lord":"Sun"},{"name":"Hora 23","start":"05:10","end":"06:10","startHours":29.159465317751984,"endHours":30.159465317751984,"planetary_lord":"Mars"},{"name":"Hora 24","start":"06:10","end":"07:10","startHours":30.159465317751984,"endHours":31.159465317751984,"planetary_lord":"Jupiter"}],"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","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Padma","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":-23.149920320143217,"eotMinutes":-2.803294500272213,"ayanamsa":26.3953}},"calendars":{"vikram_samvat":2238,"vikram_samvatsara":"Jaya","saka_samvat":2103,"saka_samvatsara":"Vṛṣa","bengali_samvat":1588,"malayalam_era":1357,"nanakshahi_year":712,"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 Navamī · Vikram 2238 Jaya · Śaka 2103 Vṛṣa"},"festivals":[],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[]},"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 30, 2181 CE · Vṛndāvana · Vidhyamitra","description":"December 30, 2181 CE for Vṛndāvana: Kṛṣṇa Navamī, sūryodaya 07:10, sūryāsta 17:35.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/2181-12-30","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/2181-12-30","sa":"https://sa.vidhyamitra.com/city/vrindavan/2181-12-30","hi":"https://hi.vidhyamitra.com/city/vrindavan/2181-12-30","x-default":"https://vidhyamitra.com/city/vrindavan/2181-12-30"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T01:07:53.511Z","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":"2026-05-31T01:07:53.511Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T01:07:53.511Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}