{"id":"vidhyamitra:city-day:rishikesh:2026-01-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2026-01-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2026-01-17","date_display":"January 17, 2026 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":2026,"month":1,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461057.770833,"kali_year":5127,"ahargana":1872592.2708,"sun":{"sidereal_longitude":272.5484,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":251.2681,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":338.7198,"elapsed_within_tithi_degrees":2.7198},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":251.2681,"elapsed_within_degrees":11.2681},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":163.8165},"karana":{"half_tithi_index":56,"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":2026,"month":1,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461057.770833,"ahargana":1872592.2708,"kali_year":5127,"ayanamsa_lahiri":24.2168,"grahas":{"sun":{"sidereal_longitude":272.7070530000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":252.50795300000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false,"latitude":-4.2222},"mars":{"sidereal_longitude":270.46035300000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":269.43685300000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":84.84525300000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":true},"venus":{"sidereal_longitude":274.8329530000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":333.162553,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":321.0499,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":141.0499,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"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":2026,"month":1,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461057.770833,"kali_year":5127,"ahargana":1872592.2708,"sun":{"sidereal_longitude":272.5484,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":251.2681,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":338.7198,"elapsed_within_tithi_degrees":2.7198},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":251.2681,"elapsed_within_degrees":11.2681},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":163.8165},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.222,"elongation":21.28},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.222,"opposition_distance":158.72}},"eclipse_window_40days":[]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"07:14","sunsetLocal":"17:40","solarNoonLocal":"12:27","dayLengthHours":10.447935484864189,"dayLengthDisplay":"10 Hours 26 Mins 53 Secs","nightLengthDisplay":"13 Hours 33 Mins 07 Secs","moonriseLocal":"06:01","moonsetLocal":"16:11","rahuKala":{"name":"Rāhu Kāla","start":"09:50","end":"11:09","startHours":9.837277607885763,"endHours":11.143269543493787,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:45","end":"15:04","startHours":13.755253414709834,"endHours":15.061245350317858,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:14","end":"08:32","startHours":7.225293736669716,"endHours":8.53128567227774,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:40","end":"10:01","startHours":9.663145349804694,"endHours":10.011409865966833,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:40","end":"07:56","startHours":7.660624381872391,"endHours":7.939235994802103,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:06","end":"12:48","startHours":12.100996962939671,"endHours":12.79752599526395,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:50","end":"06:32","startHours":5.832235672021158,"endHours":6.528764704345437,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:21","end":"07:14","startHours":6.354632446264367,"endHours":7.225293736669716,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"14:53","startHours":14.19058405991251,"endHours":14.88711309223679,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:28","end":"17:52","startHours":17.473229221533906,"endHours":17.873229221533904,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:40","end":"18:07","startHours":17.673229221533905,"endHours":18.10855986673658,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:25","end":"19:10","startHours":17.423229221533905,"endHours":19.173229221533905,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:06","end":"00:48","startHours":24.10099696293967,"endHours":24.79752599526395,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:14","end":"08:32","startHours":7.225293736669716,"endHours":8.53128567227774,"quality":"inauspicious"},{"name":"Śubha","start":"08:32","end":"09:50","startHours":8.53128567227774,"endHours":9.837277607885763,"quality":"auspicious"},{"name":"Roga","start":"09:50","end":"11:09","startHours":9.837277607885763,"endHours":11.143269543493787,"quality":"inauspicious"},{"name":"Udveg","start":"11:09","end":"12:27","startHours":11.143269543493787,"endHours":12.44926147910181,"quality":"inauspicious"},{"name":"Chala","start":"12:27","end":"13:45","startHours":12.44926147910181,"endHours":13.755253414709834,"quality":"neutral"},{"name":"Labha","start":"13:45","end":"15:04","startHours":13.755253414709834,"endHours":15.061245350317858,"quality":"auspicious"},{"name":"Amṛta","start":"15:04","end":"16:22","startHours":15.061245350317858,"endHours":16.36723728592588,"quality":"auspicious"},{"name":"Kāla","start":"16:22","end":"17:40","startHours":16.36723728592588,"endHours":17.673229221533905,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:40","end":"19:22","startHours":17.673229221533905,"endHours":19.36723728592588,"quality":"auspicious"},{"name":"Amṛta","start":"19:22","end":"21:04","startHours":19.36723728592588,"endHours":21.061245350317858,"quality":"auspicious"},{"name":"Kāla","start":"21:04","end":"22:45","startHours":21.061245350317858,"endHours":22.755253414709834,"quality":"inauspicious"},{"name":"Śubha","start":"22:45","end":"00:27","startHours":22.755253414709834,"endHours":24.44926147910181,"quality":"auspicious"},{"name":"Roga","start":"00:27","end":"02:09","startHours":24.44926147910181,"endHours":26.143269543493787,"quality":"inauspicious"},{"name":"Udveg","start":"02:09","end":"03:50","startHours":26.143269543493787,"endHours":27.837277607885763,"quality":"inauspicious"},{"name":"Chala","start":"03:50","end":"05:32","startHours":27.837277607885763,"endHours":29.53128567227774,"quality":"neutral"},{"name":"Labha","start":"05:32","end":"07:14","startHours":29.53128567227774,"endHours":31.225293736669716,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:14","end":"08:14","startHours":7.225293736669716,"endHours":8.225293736669716,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:14","end":"09:14","startHours":8.225293736669716,"endHours":9.225293736669716,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:14","end":"10:14","startHours":9.225293736669716,"endHours":10.225293736669716,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:14","end":"11:14","startHours":10.225293736669716,"endHours":11.225293736669716,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:14","end":"12:14","startHours":11.225293736669716,"endHours":12.225293736669716,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:14","end":"13:14","startHours":12.225293736669716,"endHours":13.225293736669716,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:14","end":"14:14","startHours":13.225293736669716,"endHours":14.225293736669716,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:14","end":"15:14","startHours":14.225293736669716,"endHours":15.225293736669716,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:14","end":"16:14","startHours":15.225293736669716,"endHours":16.225293736669716,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:14","end":"17:14","startHours":16.225293736669716,"endHours":17.225293736669716,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:14","end":"18:14","startHours":17.225293736669716,"endHours":18.225293736669716,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:14","end":"19:14","startHours":18.225293736669716,"endHours":19.225293736669716,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:14","end":"20:14","startHours":19.225293736669716,"endHours":20.225293736669716,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:14","end":"21:14","startHours":20.225293736669716,"endHours":21.225293736669716,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:14","end":"22:14","startHours":21.225293736669716,"endHours":22.225293736669716,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:14","end":"23:14","startHours":22.225293736669716,"endHours":23.225293736669716,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:14","end":"00:14","startHours":23.225293736669716,"endHours":24.225293736669716,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:14","end":"01:14","startHours":24.225293736669716,"endHours":25.225293736669716,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:14","end":"02:14","startHours":25.225293736669716,"endHours":26.225293736669716,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:14","end":"03:14","startHours":26.225293736669716,"endHours":27.225293736669716,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:14","end":"04:14","startHours":27.225293736669716,"endHours":28.225293736669716,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:14","end":"05:14","startHours":28.225293736669716,"endHours":29.225293736669716,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:14","end":"06:14","startHours":29.225293736669716,"endHours":30.225293736669716,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:14","end":"07:14","startHours":30.225293736669716,"endHours":31.225293736669716,"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","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-20.77027211534959,"eotMinutes":-10.026088746108654,"ayanamsa":24.2168}},"calendars":{"vikram_samvat":2083,"vikram_samvatsara":"Siddhārthī","saka_samvat":1948,"saka_samvatsara":"Parābhava","bengali_samvat":1433,"malayalam_era":1202,"nanakshahi_year":557,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Caturdaśī · Vikram 2083 Siddhārthī · Śaka 1948 Parābhava"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2},{"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":"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":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 17, 2026 CE · Ṛṣikeśa · Vidhyamitra","description":"January 17, 2026 CE for Ṛṣikeśa: Kṛṣṇa Caturdaśī, sūryodaya 07:14, sūryāsta 17:40.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2026-01-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2026-01-17","sa":"https://sa.vidhyamitra.com/city/rishikesh/2026-01-17","hi":"https://hi.vidhyamitra.com/city/rishikesh/2026-01-17","x-default":"https://vidhyamitra.com/city/rishikesh/2026-01-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T21:58:12.944Z","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":"2026-05-14T21:58:12.944Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T21:58:12.944Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}