{"id":"vidhyamitra:city-day:ayodhya:2315-12-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2315-12-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2315-12-18","date_display":"December 18, 2315 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":2315,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2566946.770833,"kali_year":5417,"ahargana":1978481.2708,"sun":{"sidereal_longitude":235.5249,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":127.9894,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":252.4644,"elapsed_within_tithi_degrees":0.4644},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":127.9894,"elapsed_within_degrees":7.9894},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":3.5143},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"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":2315,"month":12,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2566946.770833,"ahargana":1978481.2708,"kali_year":5417,"ayanamsa_lahiri":28.2667,"grahas":{"sun":{"sidereal_longitude":236.68841399999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":126.67971399999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false,"latitude":1.348},"mars":{"sidereal_longitude":287.932914,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":218.156614,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":230.16891399999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":279.018914,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":276.395714,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":110.5412,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":290.5412,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":2315,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2566946.770833,"kali_year":5417,"ahargana":1978481.2708,"sun":{"sidereal_longitude":235.5249,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":127.9894,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":252.4644,"elapsed_within_tithi_degrees":0.4644},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":127.9894,"elapsed_within_degrees":7.9894},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":3.5143},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.348,"elongation":107.536},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.348,"opposition_distance":72.464}},"eclipse_window_40days":[]},"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":10.460030829839534,"dayLengthDisplay":"10 Hours 27 Mins 36 Secs","nightLengthDisplay":"13 Hours 32 Mins 24 Secs","moonriseLocal":"22:16","moonsetLocal":"11:01","rahuKala":{"name":"Rāhu Kāla","start":"09:21","end":"10:40","startHours":9.35826350340443,"endHours":10.665767357134373,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:17","end":"14:35","startHours":13.280775064594255,"endHours":14.588278918324198,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:45","end":"08:03","startHours":6.743255795944547,"endHours":8.05075964967449,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:11","end":"09:32","startHours":9.183929656240439,"endHours":9.532597350568423,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:11","end":"07:27","startHours":7.179090413854528,"endHours":7.458024569316915,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:37","end":"12:19","startHours":11.624603516536329,"endHours":12.321938905192297,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:21","end":"06:03","startHours":5.348585018632609,"endHours":6.045920407288579,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:52","end":"06:45","startHours":5.871586560124586,"endHours":6.743255795944547,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:43","end":"14:25","startHours":13.716609682504236,"endHours":14.413945071160205,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:00","end":"17:24","startHours":17.00328662578408,"endHours":17.40328662578408,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:12","end":"17:38","startHours":17.20328662578408,"endHours":17.63912124369406,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:57","end":"18:42","startHours":16.95328662578408,"endHours":18.70328662578408,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:37","end":"00:19","startHours":23.624603516536325,"endHours":24.321938905192297,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:45","end":"08:03","startHours":6.743255795944547,"endHours":8.05075964967449,"quality":"inauspicious"},{"name":"Śubha","start":"08:03","end":"09:21","startHours":8.05075964967449,"endHours":9.35826350340443,"quality":"auspicious"},{"name":"Roga","start":"09:21","end":"10:40","startHours":9.35826350340443,"endHours":10.665767357134373,"quality":"inauspicious"},{"name":"Udveg","start":"10:40","end":"11:58","startHours":10.665767357134373,"endHours":11.973271210864315,"quality":"inauspicious"},{"name":"Chala","start":"11:58","end":"13:17","startHours":11.973271210864315,"endHours":13.280775064594255,"quality":"neutral"},{"name":"Labha","start":"13:17","end":"14:35","startHours":13.280775064594255,"endHours":14.588278918324198,"quality":"auspicious"},{"name":"Amṛta","start":"14:35","end":"15:54","startHours":14.588278918324198,"endHours":15.895782772054138,"quality":"auspicious"},{"name":"Kāla","start":"15:54","end":"17:12","startHours":15.895782772054138,"endHours":17.20328662578408,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:12","end":"18:54","startHours":17.20328662578408,"endHours":18.89578277205414,"quality":"auspicious"},{"name":"Amṛta","start":"18:54","end":"20:35","startHours":18.89578277205414,"endHours":20.588278918324196,"quality":"auspicious"},{"name":"Kāla","start":"20:35","end":"22:17","startHours":20.588278918324196,"endHours":22.280775064594255,"quality":"inauspicious"},{"name":"Śubha","start":"22:17","end":"23:58","startHours":22.280775064594255,"endHours":23.973271210864315,"quality":"auspicious"},{"name":"Roga","start":"23:58","end":"01:40","startHours":23.973271210864315,"endHours":25.66576735713437,"quality":"inauspicious"},{"name":"Udveg","start":"01:40","end":"03:21","startHours":25.66576735713437,"endHours":27.35826350340443,"quality":"inauspicious"},{"name":"Chala","start":"03:21","end":"05:03","startHours":27.35826350340443,"endHours":29.05075964967449,"quality":"neutral"},{"name":"Labha","start":"05:03","end":"06:45","startHours":29.05075964967449,"endHours":30.74325579594455,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:45","end":"07:45","startHours":6.743255795944547,"endHours":7.743255795944547,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:45","end":"08:45","startHours":7.743255795944547,"endHours":8.743255795944547,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:45","end":"09:45","startHours":8.743255795944547,"endHours":9.743255795944547,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:45","end":"10:45","startHours":9.743255795944547,"endHours":10.743255795944547,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:45","end":"11:45","startHours":10.743255795944547,"endHours":11.743255795944547,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:45","end":"12:45","startHours":11.743255795944547,"endHours":12.743255795944547,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:45","end":"13:45","startHours":12.743255795944547,"endHours":13.743255795944547,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:45","end":"14:45","startHours":13.743255795944547,"endHours":14.743255795944547,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:45","end":"15:45","startHours":14.743255795944547,"endHours":15.743255795944547,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:45","end":"16:45","startHours":15.743255795944547,"endHours":16.74325579594455,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:45","end":"17:45","startHours":16.74325579594455,"endHours":17.74325579594455,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:45","end":"18:45","startHours":17.74325579594455,"endHours":18.74325579594455,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:45","end":"19:45","startHours":18.74325579594455,"endHours":19.74325579594455,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:45","end":"20:45","startHours":19.74325579594455,"endHours":20.74325579594455,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:45","end":"21:45","startHours":20.74325579594455,"endHours":21.74325579594455,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:45","end":"22:45","startHours":21.74325579594455,"endHours":22.74325579594455,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:45","end":"23:45","startHours":22.74325579594455,"endHours":23.74325579594455,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:45","end":"00:45","startHours":23.74325579594455,"endHours":24.74325579594455,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:45","end":"01:45","startHours":24.74325579594455,"endHours":25.74325579594455,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:45","end":"02:45","startHours":25.74325579594455,"endHours":26.74325579594455,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:45","end":"03:45","startHours":26.74325579594455,"endHours":27.74325579594455,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:45","end":"04:45","startHours":27.74325579594455,"endHours":28.74325579594455,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:45","end":"05:45","startHours":28.74325579594455,"endHours":29.74325579594455,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:45","end":"06:45","startHours":29.74325579594455,"endHours":30.74325579594455,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"West","rahuVasa":"East","anandadiYoga":{"name":"Dhvānkṣa","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":-23.340317517606028,"eotMinutes":2.787727348141232,"ayanamsa":28.2667}},"calendars":{"vikram_samvat":2372,"vikram_samvatsara":"Kīlaka","saka_samvat":2237,"saka_samvatsara":"Manmatha","bengali_samvat":1722,"malayalam_era":1491,"nanakshahi_year":846,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa 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 Kṛṣṇa Saptamī · Vikram 2372 Kīlaka · Śaka 2237 Manmatha"},"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, 2315 CE · Ayodhyā · Vidhyamitra","description":"December 18, 2315 CE for Ayodhyā: Kṛṣṇa Saptamī, sūryodaya 06:45, sūryāsta 17:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2315-12-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2315-12-18","sa":"https://sa.vidhyamitra.com/city/ayodhya/2315-12-18","hi":"https://hi.vidhyamitra.com/city/ayodhya/2315-12-18","x-default":"https://vidhyamitra.com/city/ayodhya/2315-12-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T06:51:21.597Z","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":"2026-06-03T06:51:21.597Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T06:51:21.597Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}