{"id":"vidhyamitra:city-day:badrinath:2017-12-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/badrinath/2017-12-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2017-12-31","date_display":"December 31, 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":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458118.770833,"kali_year":5119,"ahargana":1869653.2708,"sun":{"sidereal_longitude":255.1504,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":47.2356,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":152.0852,"elapsed_within_tithi_degrees":8.0852},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":47.2356,"elapsed_within_degrees":7.2356},"yoga":{"number":23,"name":"Śubha","sum_longitude":302.386},"karana":{"half_tithi_index":25,"name":"Taitila"},"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":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458118.770833,"ahargana":1869653.2708,"kali_year":5119,"ayanamsa_lahiri":24.1044,"grahas":{"sun":{"sidereal_longitude":255.43704400000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":46.054543999999964,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false,"latitude":-4.2155},"mars":{"sidereal_longitude":199.16114400000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":232.57714399999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":202.433444,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":252.97914400000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":247.02524399999993,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":116.7723,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":296.7723,"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":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458118.770833,"kali_year":5119,"ahargana":1869653.2708,"sun":{"sidereal_longitude":255.1504,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":47.2356,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":152.0852,"elapsed_within_tithi_degrees":8.0852},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":47.2356,"elapsed_within_degrees":7.2356},"yoga":{"number":23,"name":"Śubha","sum_longitude":302.386},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.216,"elongation":152.085},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.216,"opposition_distance":27.915}},"eclipse_window_40days":[]},"city":{"slug":"badrinath","name":"Badarīnāth","lat":30.7433,"lon":79.4938,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha","elevation_m":3133},"tier2":{"city":{"slug":"badrinath","name":"Badarīnāth","lat":30.7433,"lon":79.4938,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha","elevation_m":3133},"sunriseLocal":"07:10","sunsetLocal":"17:21","solarNoonLocal":"12:15","dayLengthHours":10.186020485861459,"dayLengthDisplay":"10 Hours 11 Mins 10 Secs","nightLengthDisplay":"13 Hours 48 Mins 50 Secs","moonriseLocal":"15:19","moonsetLocal":"05:16","rahuKala":{"name":"Rāhu Kāla","start":"16:04","end":"17:21","startHours":16.074441597594802,"endHours":17.347694158327485,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:15","end":"13:32","startHours":12.254683915396754,"endHours":13.527936476129437,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:48","end":"16:04","startHours":14.80118903686212,"endHours":16.074441597594802,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:32","end":"09:53","startHours":9.538411785833699,"endHours":9.877945802029082,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:35","end":"07:51","startHours":7.586091192710253,"endHours":7.857718405666558,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:36","startHours":11.915149899201374,"endHours":12.594217931592137,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:48","end":"06:29","startHours":5.803537607684498,"endHours":6.482605640075262,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:19","end":"07:10","startHours":6.312838631977571,"endHours":7.1616736724660255,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:38","startHours":13.952353996373665,"endHours":14.63142202876443,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:09","end":"17:33","startHours":17.147694158327486,"endHours":17.547694158327484,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:21","end":"17:46","startHours":17.347694158327485,"endHours":17.77211167857171,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:06","end":"18:51","startHours":17.097694158327485,"endHours":18.847694158327485,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:36","startHours":23.91514989920137,"endHours":24.594217931592137,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"07:10","end":"08:26","startHours":7.1616736724660255,"endHours":8.434926233198707,"quality":"inauspicious"},{"name":"Chala","start":"08:26","end":"09:42","startHours":8.434926233198707,"endHours":9.70817879393139,"quality":"neutral"},{"name":"Labha","start":"09:42","end":"10:59","startHours":9.70817879393139,"endHours":10.981431354664073,"quality":"auspicious"},{"name":"Amṛta","start":"10:59","end":"12:15","startHours":10.981431354664073,"endHours":12.254683915396754,"quality":"auspicious"},{"name":"Kāla","start":"12:15","end":"13:32","startHours":12.254683915396754,"endHours":13.527936476129437,"quality":"inauspicious"},{"name":"Śubha","start":"13:32","end":"14:48","startHours":13.527936476129437,"endHours":14.80118903686212,"quality":"auspicious"},{"name":"Roga","start":"14:48","end":"16:04","startHours":14.80118903686212,"endHours":16.074441597594802,"quality":"inauspicious"},{"name":"Udveg","start":"16:04","end":"17:21","startHours":16.074441597594802,"endHours":17.347694158327485,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:21","end":"19:04","startHours":17.347694158327485,"endHours":19.074441597594802,"quality":"auspicious"},{"name":"Roga","start":"19:04","end":"20:48","startHours":19.074441597594802,"endHours":20.80118903686212,"quality":"inauspicious"},{"name":"Udveg","start":"20:48","end":"22:32","startHours":20.80118903686212,"endHours":22.52793647612944,"quality":"inauspicious"},{"name":"Chala","start":"22:32","end":"00:15","startHours":22.52793647612944,"endHours":24.254683915396754,"quality":"neutral"},{"name":"Labha","start":"00:15","end":"01:59","startHours":24.254683915396754,"endHours":25.981431354664075,"quality":"auspicious"},{"name":"Amṛta","start":"01:59","end":"03:42","startHours":25.981431354664075,"endHours":27.708178793931392,"quality":"auspicious"},{"name":"Kāla","start":"03:42","end":"05:26","startHours":27.708178793931392,"endHours":29.43492623319871,"quality":"inauspicious"},{"name":"Śubha","start":"05:26","end":"07:10","startHours":29.43492623319871,"endHours":31.161673672466026,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:10","end":"08:10","startHours":7.1616736724660255,"endHours":8.161673672466026,"planetary_lord":"Sun"},{"name":"Hora 2","start":"08:10","end":"09:10","startHours":8.161673672466026,"endHours":9.161673672466026,"planetary_lord":"Mars"},{"name":"Hora 3","start":"09:10","end":"10:10","startHours":9.161673672466026,"endHours":10.161673672466026,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"10:10","end":"11:10","startHours":10.161673672466026,"endHours":11.161673672466026,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"11:10","end":"12:10","startHours":11.161673672466026,"endHours":12.161673672466026,"planetary_lord":"Moon"},{"name":"Hora 6","start":"12:10","end":"13:10","startHours":12.161673672466026,"endHours":13.161673672466026,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"13:10","end":"14:10","startHours":13.161673672466026,"endHours":14.161673672466026,"planetary_lord":"Venus"},{"name":"Hora 8","start":"14:10","end":"15:10","startHours":14.161673672466026,"endHours":15.161673672466026,"planetary_lord":"Sun"},{"name":"Hora 9","start":"15:10","end":"16:10","startHours":15.161673672466026,"endHours":16.161673672466026,"planetary_lord":"Mars"},{"name":"Hora 10","start":"16:10","end":"17:10","startHours":16.161673672466026,"endHours":17.161673672466026,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"17:10","end":"18:10","startHours":17.161673672466026,"endHours":18.161673672466026,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"18:10","end":"19:10","startHours":18.161673672466026,"endHours":19.161673672466026,"planetary_lord":"Moon"},{"name":"Hora 13","start":"19:10","end":"20:10","startHours":19.161673672466026,"endHours":20.161673672466026,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"20:10","end":"21:10","startHours":20.161673672466026,"endHours":21.161673672466026,"planetary_lord":"Venus"},{"name":"Hora 15","start":"21:10","end":"22:10","startHours":21.161673672466026,"endHours":22.161673672466026,"planetary_lord":"Sun"},{"name":"Hora 16","start":"22:10","end":"23:10","startHours":22.161673672466026,"endHours":23.161673672466026,"planetary_lord":"Mars"},{"name":"Hora 17","start":"23:10","end":"00:10","startHours":23.161673672466026,"endHours":24.161673672466026,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"00:10","end":"01:10","startHours":24.161673672466026,"endHours":25.161673672466026,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"01:10","end":"02:10","startHours":25.161673672466026,"endHours":26.161673672466026,"planetary_lord":"Moon"},{"name":"Hora 20","start":"02:10","end":"03:10","startHours":26.161673672466026,"endHours":27.161673672466026,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"03:10","end":"04:10","startHours":27.161673672466026,"endHours":28.161673672466026,"planetary_lord":"Venus"},{"name":"Hora 22","start":"04:10","end":"05:10","startHours":28.161673672466026,"endHours":29.161673672466026,"planetary_lord":"Sun"},{"name":"Hora 23","start":"05:10","end":"06:10","startHours":29.161673672466026,"endHours":30.161673672466026,"planetary_lord":"Mars"},{"name":"Hora 24","start":"06:10","end":"07:10","startHours":30.161673672466026,"endHours":31.161673672466026,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.093341188465875,"eotMinutes":-3.2562349238053434,"ayanamsa":24.1044}},"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 Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Trayodaśī · 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":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"badrinath"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 31, 2017 CE · Badarīnāth · Vidhyamitra","description":"December 31, 2017 CE for Badarīnāth: Śukla Trayodaśī, sūryodaya 07:10, sūryāsta 17:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/badrinath/2017-12-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/badrinath/2017-12-31","sa":"https://sa.vidhyamitra.com/city/badrinath/2017-12-31","hi":"https://hi.vidhyamitra.com/city/badrinath/2017-12-31","x-default":"https://vidhyamitra.com/city/badrinath/2017-12-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T14:16:18.908Z","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":"2026-05-15T14:16:18.908Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T14:16:18.908Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}