{"id":"vidhyamitra:city-day:rishikesh:2028-01-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2028-01-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2028-01-15","date_display":"January 15, 2028 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":2028,"month":1,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461785.770833,"kali_year":5129,"ahargana":1873320.2708,"sun":{"sidereal_longitude":269.9635,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":127.1951,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":217.2316,"elapsed_within_tithi_degrees":1.2316},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":127.1951,"elapsed_within_degrees":7.1951},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":37.1586},"karana":{"half_tithi_index":36,"name":"Bava"},"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":2028,"month":1,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461785.770833,"ahargana":1873320.2708,"kali_year":5129,"ayanamsa_lahiri":24.2447,"grahas":{"sun":{"sidereal_longitude":270.147738,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":130.371438,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false,"latitude":-1.8801},"mars":{"sidereal_longitude":284.28873799999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":288.26393800000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":153.06813799999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":307.451638,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":357.239538,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":282.477,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":102.477,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":2028,"month":1,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461785.770833,"kali_year":5129,"ahargana":1873320.2708,"sun":{"sidereal_longitude":269.9635,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":127.1951,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":217.2316,"elapsed_within_tithi_degrees":1.2316},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":127.1951,"elapsed_within_degrees":7.1951},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":37.1586},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.88,"elongation":142.768},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.88,"opposition_distance":37.232}},"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":"17:38","solarNoonLocal":"12:26","dayLengthHours":10.40609251918648,"dayLengthDisplay":"10 Hours 24 Mins 22 Secs","nightLengthDisplay":"13 Hours 35 Mins 38 Secs","moonriseLocal":"20:41","moonsetLocal":"09:33","rahuKala":{"name":"Rāhu Kāla","start":"09:50","end":"11:08","startHours":9.836469360972268,"endHours":11.137230925870579,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:44","end":"15:02","startHours":13.738754055667197,"endHours":15.039515620565508,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:14","end":"08:32","startHours":7.234946231175648,"endHours":8.535707796073957,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:40","end":"10:01","startHours":9.663034485652494,"endHours":10.009904236292043,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:40","end":"07:57","startHours":7.668533419475085,"endHours":7.946029219986724,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:47","startHours":12.09112274012934,"endHours":12.784862241408437,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:51","end":"06:32","startHours":5.847467228617451,"endHours":6.541206729896549,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:22","end":"07:14","startHours":6.367771854576775,"endHours":7.234946231175648,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:52","startHours":14.172341243966635,"endHours":14.866080745245734,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:26","end":"17:50","startHours":17.44103875036213,"endHours":17.841038750362127,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:38","end":"18:04","startHours":17.641038750362128,"endHours":18.074625938661566,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:23","end":"19:08","startHours":17.391038750362128,"endHours":19.141038750362128,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:47","startHours":24.09112274012934,"endHours":24.784862241408437,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:14","end":"08:32","startHours":7.234946231175648,"endHours":8.535707796073957,"quality":"inauspicious"},{"name":"Śubha","start":"08:32","end":"09:50","startHours":8.535707796073957,"endHours":9.836469360972268,"quality":"auspicious"},{"name":"Roga","start":"09:50","end":"11:08","startHours":9.836469360972268,"endHours":11.137230925870579,"quality":"inauspicious"},{"name":"Udveg","start":"11:08","end":"12:26","startHours":11.137230925870579,"endHours":12.437992490768888,"quality":"inauspicious"},{"name":"Chala","start":"12:26","end":"13:44","startHours":12.437992490768888,"endHours":13.738754055667197,"quality":"neutral"},{"name":"Labha","start":"13:44","end":"15:02","startHours":13.738754055667197,"endHours":15.039515620565508,"quality":"auspicious"},{"name":"Amṛta","start":"15:02","end":"16:20","startHours":15.039515620565508,"endHours":16.34027718546382,"quality":"auspicious"},{"name":"Kāla","start":"16:20","end":"17:38","startHours":16.34027718546382,"endHours":17.641038750362128,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:38","end":"19:20","startHours":17.641038750362128,"endHours":19.34027718546382,"quality":"auspicious"},{"name":"Amṛta","start":"19:20","end":"21:02","startHours":19.34027718546382,"endHours":21.03951562056551,"quality":"auspicious"},{"name":"Kāla","start":"21:02","end":"22:44","startHours":21.03951562056551,"endHours":22.738754055667197,"quality":"inauspicious"},{"name":"Śubha","start":"22:44","end":"00:26","startHours":22.738754055667197,"endHours":24.437992490768888,"quality":"auspicious"},{"name":"Roga","start":"00:26","end":"02:08","startHours":24.437992490768888,"endHours":26.13723092587058,"quality":"inauspicious"},{"name":"Udveg","start":"02:08","end":"03:50","startHours":26.13723092587058,"endHours":27.836469360972266,"quality":"inauspicious"},{"name":"Chala","start":"03:50","end":"05:32","startHours":27.836469360972266,"endHours":29.535707796073957,"quality":"neutral"},{"name":"Labha","start":"05:32","end":"07:14","startHours":29.535707796073957,"endHours":31.23494623117565,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:14","end":"08:14","startHours":7.234946231175648,"endHours":8.234946231175648,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:14","end":"09:14","startHours":8.234946231175648,"endHours":9.234946231175648,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:14","end":"10:14","startHours":9.234946231175648,"endHours":10.234946231175648,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:14","end":"11:14","startHours":10.234946231175648,"endHours":11.234946231175648,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:14","end":"12:14","startHours":11.234946231175648,"endHours":12.234946231175648,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:14","end":"13:14","startHours":12.234946231175648,"endHours":13.234946231175648,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:14","end":"14:14","startHours":13.234946231175648,"endHours":14.234946231175648,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:14","end":"15:14","startHours":14.234946231175648,"endHours":15.234946231175648,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:14","end":"16:14","startHours":15.234946231175648,"endHours":16.23494623117565,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:14","end":"17:14","startHours":16.23494623117565,"endHours":17.23494623117565,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:14","end":"18:14","startHours":17.23494623117565,"endHours":18.23494623117565,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:14","end":"19:14","startHours":18.23494623117565,"endHours":19.23494623117565,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:14","end":"20:14","startHours":19.23494623117565,"endHours":20.23494623117565,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:14","end":"21:14","startHours":20.23494623117565,"endHours":21.23494623117565,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:14","end":"22:14","startHours":21.23494623117565,"endHours":22.23494623117565,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:14","end":"23:14","startHours":22.23494623117565,"endHours":23.23494623117565,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:14","end":"00:14","startHours":23.23494623117565,"endHours":24.23494623117565,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:14","end":"01:14","startHours":24.23494623117565,"endHours":25.23494623117565,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:14","end":"02:14","startHours":25.23494623117565,"endHours":26.23494623117565,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:14","end":"03:14","startHours":26.23494623117565,"endHours":27.23494623117565,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:14","end":"04:14","startHours":27.23494623117565,"endHours":28.23494623117565,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:14","end":"05:14","startHours":28.23494623117565,"endHours":29.23494623117565,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:14","end":"06:14","startHours":29.23494623117565,"endHours":30.23494623117565,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:14","end":"07:14","startHours":30.23494623117565,"endHours":31.23494623117565,"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"},"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":-21.23721962083632,"eotMinutes":-9.349949446133257,"ayanamsa":24.2447}},"calendars":{"vikram_samvat":2085,"vikram_samvatsara":"Durmati","saka_samvat":1950,"saka_samvatsara":"Kīlaka","bengali_samvat":1435,"malayalam_era":1204,"nanakshahi_year":559,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Caturthī · Vikram 2085 Durmati · Śaka 1950 Kīlaka"},"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":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"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 15, 2028 CE · Ṛṣikeśa · Vidhyamitra","description":"January 15, 2028 CE for Ṛṣikeśa: Kṛṣṇa Caturthī, sūryodaya 07:14, sūryāsta 17:38.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2028-01-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2028-01-15","sa":"https://sa.vidhyamitra.com/city/rishikesh/2028-01-15","hi":"https://hi.vidhyamitra.com/city/rishikesh/2028-01-15","x-default":"https://vidhyamitra.com/city/rishikesh/2028-01-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T00:08:10.069Z","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":"2026-05-15T00:08:10.069Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T00:08:10.069Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}