{"id":"vidhyamitra:city-day:ranchi:2017-12-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ranchi/2017-12-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2017-12-17","date_display":"December 17, 2017 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":2017,"month":12,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458104.770833,"kali_year":5119,"ahargana":1869639.2708,"sun":{"sidereal_longitude":240.7659,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":227.4488,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":346.683,"elapsed_within_tithi_degrees":10.683},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1,"moon_longitude":227.4488,"elapsed_within_degrees":0.7822},"yoga":{"number":9,"name":"Śūla","sum_longitude":108.2147},"karana":{"half_tithi_index":57,"name":"Śakuni"},"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":2017,"month":12,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458104.770833,"ahargana":1869639.2708,"kali_year":5119,"ayanamsa_lahiri":24.1039,"grahas":{"sun":{"sidereal_longitude":241.17717900000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":227.83767899999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false,"latitude":4.2299},"mars":{"sidereal_longitude":190.403679,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":231.78437899999994,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":199.89937899999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":235.365679,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":245.37367900000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":117.5141,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":297.5141,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"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":2017,"month":12,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458104.770833,"kali_year":5119,"ahargana":1869639.2708,"sun":{"sidereal_longitude":240.7659,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":227.4488,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":346.683,"elapsed_within_tithi_degrees":10.683},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1,"moon_longitude":227.4488,"elapsed_within_degrees":0.7822},"yoga":{"number":9,"name":"Śūla","sum_longitude":108.2147},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.23,"elongation":13.317},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.23,"opposition_distance":166.683}},"eclipse_window_40days":[]},"city":{"slug":"ranchi","name":"Ranchi, Jharkhand","lat":23.3441,"lon":85.3096,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"ranchi","name":"Ranchi, Jharkhand","lat":23.3441,"lon":85.3096,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"sunriseLocal":"06:24","sunsetLocal":"17:07","solarNoonLocal":"11:46","dayLengthHours":10.702022926875529,"dayLengthDisplay":"10 Hours 42 Mins 07 Secs","nightLengthDisplay":"13 Hours 17 Mins 53 Secs","moonriseLocal":"05:30","moonsetLocal":"16:14","rahuKala":{"name":"Rāhu Kāla","start":"15:46","end":"17:07","startHours":15.77172911629318,"endHours":17.109481982152623,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:46","end":"13:06","startHours":11.758470518714859,"endHours":13.096223384574298,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:26","end":"15:46","startHours":14.43397625043374,"endHours":15.77172911629318,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:16","startHours":8.904597738214717,"endHours":9.261331835777234,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:51","end":"07:08","startHours":6.853376677230241,"endHours":7.138763955280255,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:24","end":"12:07","startHours":11.401736421152341,"endHours":12.115204616277376,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:59","end":"05:42","startHours":4.9805226650270225,"endHours":5.693990860152058,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:31","end":"06:24","startHours":5.5156238113708,"endHours":6.407459055277093,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:33","end":"14:15","startHours":13.542141006527444,"endHours":14.25560920165248,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:55","end":"17:19","startHours":16.909481982152624,"endHours":17.309481982152622,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:07","end":"17:33","startHours":17.109481982152623,"endHours":17.55539960410577,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:52","end":"18:37","startHours":16.859481982152623,"endHours":18.609481982152623,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:24","end":"00:07","startHours":23.40173642115234,"endHours":24.115204616277378,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:24","end":"07:45","startHours":6.407459055277093,"endHours":7.7452119211365344,"quality":"inauspicious"},{"name":"Chala","start":"07:45","end":"09:05","startHours":7.7452119211365344,"endHours":9.082964786995976,"quality":"neutral"},{"name":"Labha","start":"09:05","end":"10:25","startHours":9.082964786995976,"endHours":10.420717652855416,"quality":"auspicious"},{"name":"Amṛta","start":"10:25","end":"11:46","startHours":10.420717652855416,"endHours":11.758470518714859,"quality":"auspicious"},{"name":"Kāla","start":"11:46","end":"13:06","startHours":11.758470518714859,"endHours":13.096223384574298,"quality":"inauspicious"},{"name":"Śubha","start":"13:06","end":"14:26","startHours":13.096223384574298,"endHours":14.43397625043374,"quality":"auspicious"},{"name":"Roga","start":"14:26","end":"15:46","startHours":14.43397625043374,"endHours":15.77172911629318,"quality":"inauspicious"},{"name":"Udveg","start":"15:46","end":"17:07","startHours":15.77172911629318,"endHours":17.109481982152623,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:07","end":"18:46","startHours":17.109481982152623,"endHours":18.77172911629318,"quality":"auspicious"},{"name":"Roga","start":"18:46","end":"20:26","startHours":18.77172911629318,"endHours":20.43397625043374,"quality":"inauspicious"},{"name":"Udveg","start":"20:26","end":"22:06","startHours":20.43397625043374,"endHours":22.0962233845743,"quality":"inauspicious"},{"name":"Chala","start":"22:06","end":"23:46","startHours":22.0962233845743,"endHours":23.75847051871486,"quality":"neutral"},{"name":"Labha","start":"23:46","end":"01:25","startHours":23.75847051871486,"endHours":25.420717652855416,"quality":"auspicious"},{"name":"Amṛta","start":"01:25","end":"03:05","startHours":25.420717652855416,"endHours":27.082964786995976,"quality":"auspicious"},{"name":"Kāla","start":"03:05","end":"04:45","startHours":27.082964786995976,"endHours":28.745211921136537,"quality":"inauspicious"},{"name":"Śubha","start":"04:45","end":"06:24","startHours":28.745211921136537,"endHours":30.407459055277094,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:24","end":"07:24","startHours":6.407459055277093,"endHours":7.407459055277093,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:24","end":"08:24","startHours":7.407459055277093,"endHours":8.407459055277094,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:24","end":"09:24","startHours":8.407459055277094,"endHours":9.407459055277094,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:24","end":"10:24","startHours":9.407459055277094,"endHours":10.407459055277094,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:24","end":"11:24","startHours":10.407459055277094,"endHours":11.407459055277094,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:24","end":"12:24","startHours":11.407459055277094,"endHours":12.407459055277094,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:24","end":"13:24","startHours":12.407459055277094,"endHours":13.407459055277094,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:24","end":"14:24","startHours":13.407459055277094,"endHours":14.407459055277094,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:24","end":"15:24","startHours":14.407459055277094,"endHours":15.407459055277094,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:24","end":"16:24","startHours":15.407459055277094,"endHours":16.407459055277094,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:24","end":"17:24","startHours":16.407459055277094,"endHours":17.407459055277094,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:24","end":"18:24","startHours":17.407459055277094,"endHours":18.407459055277094,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:24","end":"19:24","startHours":18.407459055277094,"endHours":19.407459055277094,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:24","end":"20:24","startHours":19.407459055277094,"endHours":20.407459055277094,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:24","end":"21:24","startHours":20.407459055277094,"endHours":21.407459055277094,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:24","end":"22:24","startHours":21.407459055277094,"endHours":22.407459055277094,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:24","end":"23:24","startHours":22.407459055277094,"endHours":23.407459055277094,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:24","end":"00:24","startHours":23.407459055277094,"endHours":24.407459055277094,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:24","end":"01:24","startHours":24.407459055277094,"endHours":25.407459055277094,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:24","end":"02:24","startHours":25.407459055277094,"endHours":26.407459055277094,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:24","end":"03:24","startHours":26.407459055277094,"endHours":27.407459055277094,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:24","end":"04:24","startHours":27.407459055277094,"endHours":28.407459055277094,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:24","end":"05:24","startHours":28.407459055277094,"endHours":29.407459055277094,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:24","end":"06:24","startHours":29.407459055277094,"endHours":30.407459055277094,"planetary_lord":"Jupiter"}],"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":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"North-East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.352334625224618,"eotMinutes":3.253368877108411,"ayanamsa":24.1039}},"calendars":{"vikram_samvat":2074,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":1939,"saka_samvatsara":"Hemalambī","bengali_samvat":1424,"malayalam_era":1193,"nanakshahi_year":548,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Caturdaśī · Vikram 2074 Sādhāraṇa · Śaka 1939 Hemalambī"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5},{"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":"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"ranchi"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 17, 2017 CE · Ranchi, Jharkhand · Vidhyamitra","description":"December 17, 2017 CE for Ranchi, Jharkhand: Kṛṣṇa Caturdaśī, sūryodaya 06:24, sūryāsta 17:07.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ranchi/2017-12-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ranchi/2017-12-17","sa":"https://sa.vidhyamitra.com/city/ranchi/2017-12-17","hi":"https://hi.vidhyamitra.com/city/ranchi/2017-12-17","x-default":"https://vidhyamitra.com/city/ranchi/2017-12-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T06:37:04.498Z","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":"2026-05-15T06:37:04.498Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T06:37:04.498Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}