{"id":"vidhyamitra:city-day:ranchi:1997-12-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ranchi/1997-12-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1997-12-06","date_display":"December 6, 1997 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":1997,"month":12,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450788.770833,"kali_year":5099,"ahargana":1862323.2708,"sun":{"sidereal_longitude":229.6714,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":304.4397,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":74.7684,"elapsed_within_tithi_degrees":2.7684},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":304.4397,"elapsed_within_degrees":11.1064},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":174.1111},"karana":{"half_tithi_index":12,"name":"Gara"},"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":1997,"month":12,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450788.770833,"ahargana":1862323.2708,"kali_year":5099,"ayanamsa_lahiri":23.8241,"grahas":{"sun":{"sidereal_longitude":230.127704,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":304.366004,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false,"latitude":1.59},"mars":{"sidereal_longitude":266.672604,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":249.53370399999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":293.525804,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":272.684704,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":349.764604,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":145.151,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":325.151,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":1997,"month":12,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450788.770833,"kali_year":5099,"ahargana":1862323.2708,"sun":{"sidereal_longitude":229.6714,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":304.4397,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":74.7684,"elapsed_within_tithi_degrees":2.7684},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":304.4397,"elapsed_within_degrees":11.1064},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":174.1111},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.59,"elongation":74.768},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.59,"opposition_distance":105.232}},"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":"06:18","sunsetLocal":"17:03","solarNoonLocal":"11:41","dayLengthHours":10.761697249512437,"dayLengthDisplay":"10 Hours 45 Mins 42 Secs","nightLengthDisplay":"13 Hours 14 Mins 18 Secs","moonriseLocal":"10:56","moonsetLocal":"22:19","rahuKala":{"name":"Rāhu Kāla","start":"08:59","end":"10:20","startHours":8.986554363042696,"endHours":10.33176651923175,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:01","end":"14:22","startHours":13.022190831609858,"endHours":14.367402987798915,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:18","end":"07:38","startHours":6.296130050664586,"endHours":7.641342206853641,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:48","end":"09:10","startHours":8.807192742217488,"endHours":9.165915983867903,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:45","end":"07:02","startHours":6.744534102727604,"endHours":7.031512696047936,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:19","end":"12:02","startHours":11.318255433770391,"endHours":12.03570191707122,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:52","end":"05:35","startHours":4.861237084062928,"endHours":5.578683567363757,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:24","end":"06:18","startHours":5.399321946538549,"endHours":6.296130050664586,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:28","end":"14:11","startHours":13.470594883672877,"endHours":14.188041366973707,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:51","end":"17:15","startHours":16.857827300177025,"endHours":17.257827300177023,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:03","end":"17:30","startHours":17.057827300177024,"endHours":17.506231352240043,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:48","end":"18:33","startHours":16.807827300177024,"endHours":18.557827300177024,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:19","end":"00:02","startHours":23.318255433770393,"endHours":24.03570191707122,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:18","end":"07:38","startHours":6.296130050664586,"endHours":7.641342206853641,"quality":"inauspicious"},{"name":"Śubha","start":"07:38","end":"08:59","startHours":7.641342206853641,"endHours":8.986554363042696,"quality":"auspicious"},{"name":"Roga","start":"08:59","end":"10:20","startHours":8.986554363042696,"endHours":10.33176651923175,"quality":"inauspicious"},{"name":"Udveg","start":"10:20","end":"11:41","startHours":10.33176651923175,"endHours":11.676978675420806,"quality":"inauspicious"},{"name":"Chala","start":"11:41","end":"13:01","startHours":11.676978675420806,"endHours":13.022190831609858,"quality":"neutral"},{"name":"Labha","start":"13:01","end":"14:22","startHours":13.022190831609858,"endHours":14.367402987798915,"quality":"auspicious"},{"name":"Amṛta","start":"14:22","end":"15:43","startHours":14.367402987798915,"endHours":15.712615143987968,"quality":"auspicious"},{"name":"Kāla","start":"15:43","end":"17:03","startHours":15.712615143987968,"endHours":17.057827300177024,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:03","end":"18:43","startHours":17.057827300177024,"endHours":18.712615143987968,"quality":"auspicious"},{"name":"Amṛta","start":"18:43","end":"20:22","startHours":18.712615143987968,"endHours":20.367402987798915,"quality":"auspicious"},{"name":"Kāla","start":"20:22","end":"22:01","startHours":20.367402987798915,"endHours":22.022190831609862,"quality":"inauspicious"},{"name":"Śubha","start":"22:01","end":"23:41","startHours":22.022190831609862,"endHours":23.676978675420806,"quality":"auspicious"},{"name":"Roga","start":"23:41","end":"01:20","startHours":23.676978675420806,"endHours":25.33176651923175,"quality":"inauspicious"},{"name":"Udveg","start":"01:20","end":"02:59","startHours":25.33176651923175,"endHours":26.986554363042696,"quality":"inauspicious"},{"name":"Chala","start":"02:59","end":"04:38","startHours":26.986554363042696,"endHours":28.641342206853643,"quality":"neutral"},{"name":"Labha","start":"04:38","end":"06:18","startHours":28.641342206853643,"endHours":30.296130050664587,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:18","end":"07:18","startHours":6.296130050664586,"endHours":7.296130050664586,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:18","end":"08:18","startHours":7.296130050664586,"endHours":8.296130050664587,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:18","end":"09:18","startHours":8.296130050664587,"endHours":9.296130050664587,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:18","end":"10:18","startHours":9.296130050664587,"endHours":10.296130050664587,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:18","end":"11:18","startHours":10.296130050664587,"endHours":11.296130050664587,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:18","end":"12:18","startHours":11.296130050664587,"endHours":12.296130050664587,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:18","end":"13:18","startHours":12.296130050664587,"endHours":13.296130050664587,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:18","end":"14:18","startHours":13.296130050664587,"endHours":14.296130050664587,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:18","end":"15:18","startHours":14.296130050664587,"endHours":15.296130050664587,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:18","end":"16:18","startHours":15.296130050664587,"endHours":16.296130050664587,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:18","end":"17:18","startHours":16.296130050664587,"endHours":17.296130050664587,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:18","end":"18:18","startHours":17.296130050664587,"endHours":18.296130050664587,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:18","end":"19:18","startHours":18.296130050664587,"endHours":19.296130050664587,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:18","end":"20:18","startHours":19.296130050664587,"endHours":20.296130050664587,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:18","end":"21:18","startHours":20.296130050664587,"endHours":21.296130050664587,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:18","end":"22:18","startHours":21.296130050664587,"endHours":22.296130050664587,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:18","end":"23:18","startHours":22.296130050664587,"endHours":23.296130050664587,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:18","end":"00:18","startHours":23.296130050664587,"endHours":24.296130050664587,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:18","end":"01:18","startHours":24.296130050664587,"endHours":25.296130050664587,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:18","end":"02:18","startHours":25.296130050664587,"endHours":26.296130050664587,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:18","end":"03:18","startHours":26.296130050664587,"endHours":27.296130050664587,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:18","end":"04:18","startHours":27.296130050664587,"endHours":28.296130050664587,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:18","end":"05:18","startHours":28.296130050664587,"endHours":29.296130050664587,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:18","end":"06:18","startHours":29.296130050664587,"endHours":30.296130050664587,"planetary_lord":"Mercury"}],"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":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-22.472045420818002,"eotMinutes":8.142879474751563,"ayanamsa":23.8241}},"calendars":{"vikram_samvat":2054,"vikram_samvatsara":"Vikṛti","saka_samvat":1919,"saka_samvatsara":"Īśvara","bengali_samvat":1404,"malayalam_era":1173,"nanakshahi_year":528,"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 Saptamī · Vikram 2054 Vikṛti · Śaka 1919 Īśvara"},"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":"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 6, 1997 CE · Ranchi, Jharkhand · Vidhyamitra","description":"December 6, 1997 CE for Ranchi, Jharkhand: Śukla Saptamī, sūryodaya 06:18, sūryāsta 17:03.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ranchi/1997-12-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ranchi/1997-12-06","sa":"https://sa.vidhyamitra.com/city/ranchi/1997-12-06","hi":"https://hi.vidhyamitra.com/city/ranchi/1997-12-06","x-default":"https://vidhyamitra.com/city/ranchi/1997-12-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T16:57:26.693Z","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":"2026-05-31T16:57:26.693Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T16:57:26.693Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}