{"id":"vidhyamitra:city-day:ayodhya:2151-12-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2151-12-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2151-12-18","date_display":"December 18, 2151 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":2151,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2507047.770833,"kali_year":5253,"ahargana":1918582.2708,"sun":{"sidereal_longitude":239.0487,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":351.287,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":112.2383,"elapsed_within_tithi_degrees":4.2383},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":351.287,"elapsed_within_degrees":4.6204},"yoga":{"number":18,"name":"Varīyān","sum_longitude":230.3358},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2151,"month":12,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2507047.770833,"ahargana":1918582.2708,"kali_year":5253,"ayanamsa_lahiri":25.9758,"grahas":{"sun":{"sidereal_longitude":239.79239599999994,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":350.340496,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false,"latitude":-3.5921},"mars":{"sidereal_longitude":242.15639599999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":229.22759599999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":287.33179599999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"venus":{"sidereal_longitude":205.57959600000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":87.221496,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":44.2784,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":224.2784,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"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":2151,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2507047.770833,"kali_year":5253,"ahargana":1918582.2708,"sun":{"sidereal_longitude":239.0487,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":351.287,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":112.2383,"elapsed_within_tithi_degrees":4.2383},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":351.287,"elapsed_within_degrees":4.6204},"yoga":{"number":18,"name":"Varīyān","sum_longitude":230.3358},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.592,"elongation":112.238},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.592,"opposition_distance":67.762}},"eclipse_window_40days":[{"offset_days":-10,"type":"solar","occurs":true,"moon_latitude":-0.403,"elongation":1.151}]},"city":{"slug":"ayodhya","name":"Ayodhyā","lat":26.799,"lon":82.204,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"ayodhya","name":"Ayodhyā","lat":26.799,"lon":82.204,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"06:45","sunsetLocal":"17:12","solarNoonLocal":"11:58","dayLengthHours":10.457737322310653,"dayLengthDisplay":"10 Hours 27 Mins 28 Secs","nightLengthDisplay":"13 Hours 32 Mins 32 Secs","moonriseLocal":"13:05","moonsetLocal":"01:36","rahuKala":{"name":"Rāhu Kāla","start":"09:22","end":"10:40","startHours":9.358836880286649,"endHours":10.666054045575482,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:17","end":"14:35","startHours":13.280488376153144,"endHours":14.587705541441977,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:45","end":"08:03","startHours":6.744402549708987,"endHours":8.051619714997818,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:11","end":"09:32","startHours":9.184541258248139,"endHours":9.533132502325161,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:11","end":"07:28","startHours":7.180141604805264,"endHours":7.459014600066882,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:37","end":"12:19","startHours":11.62467996678729,"endHours":12.321862454941336,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:21","end":"06:03","startHours":5.3500375734009,"endHours":6.047220061554944,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:52","end":"06:45","startHours":5.872924439516432,"endHours":6.744402549708987,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:43","end":"14:25","startHours":13.716227431249422,"endHours":14.413409919403465,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:00","end":"17:24","startHours":17.00213987201964,"endHours":17.40213987201964,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:12","end":"17:38","startHours":17.20213987201964,"endHours":17.637878927115917,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:57","end":"18:42","startHours":16.95213987201964,"endHours":18.70213987201964,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:37","end":"00:19","startHours":23.62467996678729,"endHours":24.321862454941332,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:45","end":"08:03","startHours":6.744402549708987,"endHours":8.051619714997818,"quality":"inauspicious"},{"name":"Śubha","start":"08:03","end":"09:22","startHours":8.051619714997818,"endHours":9.358836880286649,"quality":"auspicious"},{"name":"Roga","start":"09:22","end":"10:40","startHours":9.358836880286649,"endHours":10.666054045575482,"quality":"inauspicious"},{"name":"Udveg","start":"10:40","end":"11:58","startHours":10.666054045575482,"endHours":11.973271210864313,"quality":"inauspicious"},{"name":"Chala","start":"11:58","end":"13:17","startHours":11.973271210864313,"endHours":13.280488376153144,"quality":"neutral"},{"name":"Labha","start":"13:17","end":"14:35","startHours":13.280488376153144,"endHours":14.587705541441977,"quality":"auspicious"},{"name":"Amṛta","start":"14:35","end":"15:54","startHours":14.587705541441977,"endHours":15.894922706730808,"quality":"auspicious"},{"name":"Kāla","start":"15:54","end":"17:12","startHours":15.894922706730808,"endHours":17.20213987201964,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:12","end":"18:54","startHours":17.20213987201964,"endHours":18.894922706730807,"quality":"auspicious"},{"name":"Amṛta","start":"18:54","end":"20:35","startHours":18.894922706730807,"endHours":20.587705541441977,"quality":"auspicious"},{"name":"Kāla","start":"20:35","end":"22:17","startHours":20.587705541441977,"endHours":22.280488376153144,"quality":"inauspicious"},{"name":"Śubha","start":"22:17","end":"23:58","startHours":22.280488376153144,"endHours":23.97327121086431,"quality":"auspicious"},{"name":"Roga","start":"23:58","end":"01:40","startHours":23.97327121086431,"endHours":25.666054045575482,"quality":"inauspicious"},{"name":"Udveg","start":"01:40","end":"03:22","startHours":25.666054045575482,"endHours":27.35883688028665,"quality":"inauspicious"},{"name":"Chala","start":"03:22","end":"05:03","startHours":27.35883688028665,"endHours":29.05161971499782,"quality":"neutral"},{"name":"Labha","start":"05:03","end":"06:45","startHours":29.05161971499782,"endHours":30.744402549708987,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:45","end":"07:45","startHours":6.744402549708987,"endHours":7.744402549708987,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:45","end":"08:45","startHours":7.744402549708987,"endHours":8.744402549708987,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:45","end":"09:45","startHours":8.744402549708987,"endHours":9.744402549708987,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:45","end":"10:45","startHours":9.744402549708987,"endHours":10.744402549708987,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:45","end":"11:45","startHours":10.744402549708987,"endHours":11.744402549708987,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:45","end":"12:45","startHours":11.744402549708987,"endHours":12.744402549708987,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:45","end":"13:45","startHours":12.744402549708987,"endHours":13.744402549708987,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:45","end":"14:45","startHours":13.744402549708987,"endHours":14.744402549708987,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:45","end":"15:45","startHours":14.744402549708987,"endHours":15.744402549708987,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:45","end":"16:45","startHours":15.744402549708987,"endHours":16.744402549708987,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:45","end":"17:45","startHours":16.744402549708987,"endHours":17.744402549708987,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:45","end":"18:45","startHours":17.744402549708987,"endHours":18.744402549708987,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:45","end":"19:45","startHours":18.744402549708987,"endHours":19.744402549708987,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:45","end":"20:45","startHours":19.744402549708987,"endHours":20.744402549708987,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:45","end":"21:45","startHours":20.744402549708987,"endHours":21.744402549708987,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:45","end":"22:45","startHours":21.744402549708987,"endHours":22.744402549708987,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:45","end":"23:45","startHours":22.744402549708987,"endHours":23.744402549708987,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:45","end":"00:45","startHours":23.744402549708987,"endHours":24.744402549708987,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:45","end":"01:45","startHours":24.744402549708987,"endHours":25.744402549708987,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:45","end":"02:45","startHours":25.744402549708987,"endHours":26.744402549708987,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:45","end":"03:45","startHours":26.744402549708987,"endHours":27.744402549708987,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:45","end":"04:45","startHours":27.744402549708987,"endHours":28.744402549708987,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:45","end":"05:45","startHours":28.744402549708987,"endHours":29.744402549708987,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:45","end":"06:45","startHours":29.744402549708987,"endHours":30.744402549708987,"planetary_lord":"Mercury"}],"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":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"East","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.368802255157036,"eotMinutes":2.787727348141232,"ayanamsa":25.9758}},"calendars":{"vikram_samvat":2208,"vikram_samvatsara":"Raktākṣī","saka_samvat":2073,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1558,"malayalam_era":1327,"nanakshahi_year":682,"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 Daśamī · Vikram 2208 Raktākṣī · Śaka 2073 Virodhakṛt"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"ayodhya"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 18, 2151 CE · Ayodhyā · Vidhyamitra","description":"December 18, 2151 CE for Ayodhyā: Śukla Daśamī, sūryodaya 06:45, sūryāsta 17:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2151-12-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2151-12-18","sa":"https://sa.vidhyamitra.com/city/ayodhya/2151-12-18","hi":"https://hi.vidhyamitra.com/city/ayodhya/2151-12-18","x-default":"https://vidhyamitra.com/city/ayodhya/2151-12-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T04:21:02.987Z","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":"2026-06-02T04:21:02.987Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T04:21:02.987Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}