{"id":"vidhyamitra:city-day:rishikesh:2128-02-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2128-02-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2128-02-04","date_display":"February 4, 2128 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":2128,"month":2,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2498329.770833,"kali_year":5229,"ahargana":1909864.2708,"sun":{"sidereal_longitude":288.5348,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":330.4638,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":41.9291,"elapsed_within_tithi_degrees":5.9291},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4,"moon_longitude":330.4638,"elapsed_within_degrees":10.4638},"yoga":{"number":20,"name":"Śiva","sum_longitude":258.9986},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2128,"month":2,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2498329.770833,"ahargana":1909864.2708,"kali_year":5229,"ayanamsa_lahiri":25.6423,"grahas":{"sun":{"sidereal_longitude":288.8138879999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":330.53888800000004,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false,"latitude":-0.3342},"mars":{"sidereal_longitude":342.083788,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":261.74758799999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":291.2331879999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"venus":{"sidereal_longitude":263.988888,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":162.091588,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":146.2,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":326.2,"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":2128,"month":2,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2498329.770833,"kali_year":5229,"ahargana":1909864.2708,"sun":{"sidereal_longitude":288.5348,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":330.4638,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":41.9291,"elapsed_within_tithi_degrees":5.9291},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4,"moon_longitude":330.4638,"elapsed_within_degrees":10.4638},"yoga":{"number":20,"name":"Śiva","sum_longitude":258.9986},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.334,"elongation":41.929},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.334,"opposition_distance":138.071}},"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":"07:06","sunsetLocal":"17:56","solarNoonLocal":"12:31","dayLengthHours":10.81869334032259,"dayLengthDisplay":"10 Hours 49 Mins 07 Secs","nightLengthDisplay":"13 Hours 10 Mins 53 Secs","moonriseLocal":"09:19","moonsetLocal":"21:17","rahuKala":{"name":"Rāhu Kāla","start":"12:31","end":"13:52","startHours":12.51702207279989,"endHours":13.869358740340212,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:28","end":"09:49","startHours":8.460012070178918,"endHours":9.81234873771924,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:10","end":"12:31","startHours":11.164685405259565,"endHours":12.51702207279989,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"10:00","startHours":9.632037182047199,"endHours":9.992660293391285,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:34","end":"07:51","startHours":7.558454291818702,"endHours":7.846952780893971,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:53","startHours":12.156398961455803,"endHours":12.877645184143976,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:40","end":"06:23","startHours":5.665182957262249,"endHours":6.386429179950421,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:12","end":"07:06","startHours":6.206117624278378,"endHours":7.107675402638594,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:19","end":"15:02","startHours":14.320137629520321,"endHours":15.041383852208494,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:44","end":"18:08","startHours":17.726368742961185,"endHours":18.126368742961184,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:56","end":"18:23","startHours":17.926368742961184,"endHours":18.37714763214129,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:41","end":"19:26","startHours":17.676368742961184,"endHours":19.426368742961184,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:53","startHours":24.156398961455803,"endHours":24.877645184143976,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:06","end":"08:28","startHours":7.107675402638594,"endHours":8.460012070178918,"quality":"auspicious"},{"name":"Amṛta","start":"08:28","end":"09:49","startHours":8.460012070178918,"endHours":9.81234873771924,"quality":"auspicious"},{"name":"Kāla","start":"09:49","end":"11:10","startHours":9.81234873771924,"endHours":11.164685405259565,"quality":"inauspicious"},{"name":"Śubha","start":"11:10","end":"12:31","startHours":11.164685405259565,"endHours":12.51702207279989,"quality":"auspicious"},{"name":"Roga","start":"12:31","end":"13:52","startHours":12.51702207279989,"endHours":13.869358740340212,"quality":"inauspicious"},{"name":"Udveg","start":"13:52","end":"15:13","startHours":13.869358740340212,"endHours":15.221695407880535,"quality":"inauspicious"},{"name":"Chala","start":"15:13","end":"16:34","startHours":15.221695407880535,"endHours":16.57403207542086,"quality":"neutral"},{"name":"Labha","start":"16:34","end":"17:56","startHours":16.57403207542086,"endHours":17.926368742961184,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:56","end":"19:34","startHours":17.926368742961184,"endHours":19.57403207542086,"quality":"inauspicious"},{"name":"Chala","start":"19:34","end":"21:13","startHours":19.57403207542086,"endHours":21.22169540788054,"quality":"neutral"},{"name":"Labha","start":"21:13","end":"22:52","startHours":21.22169540788054,"endHours":22.869358740340214,"quality":"auspicious"},{"name":"Amṛta","start":"22:52","end":"00:31","startHours":22.869358740340214,"endHours":24.51702207279989,"quality":"auspicious"},{"name":"Kāla","start":"00:31","end":"02:10","startHours":24.51702207279989,"endHours":26.164685405259565,"quality":"inauspicious"},{"name":"Śubha","start":"02:10","end":"03:49","startHours":26.164685405259565,"endHours":27.81234873771924,"quality":"auspicious"},{"name":"Roga","start":"03:49","end":"05:28","startHours":27.81234873771924,"endHours":29.46001207017892,"quality":"inauspicious"},{"name":"Udveg","start":"05:28","end":"07:06","startHours":29.46001207017892,"endHours":31.107675402638595,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:06","end":"08:06","startHours":7.107675402638594,"endHours":8.107675402638595,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:06","end":"09:06","startHours":8.107675402638595,"endHours":9.107675402638595,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:06","end":"10:06","startHours":9.107675402638595,"endHours":10.107675402638595,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:06","end":"11:06","startHours":10.107675402638595,"endHours":11.107675402638595,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:06","end":"12:06","startHours":11.107675402638595,"endHours":12.107675402638595,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:06","end":"13:06","startHours":12.107675402638595,"endHours":13.107675402638595,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:06","end":"14:06","startHours":13.107675402638595,"endHours":14.107675402638595,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:06","end":"15:06","startHours":14.107675402638595,"endHours":15.107675402638595,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:06","end":"16:06","startHours":15.107675402638595,"endHours":16.107675402638595,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:06","end":"17:06","startHours":16.107675402638595,"endHours":17.107675402638595,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:06","end":"18:06","startHours":17.107675402638595,"endHours":18.107675402638595,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:06","end":"19:06","startHours":18.107675402638595,"endHours":19.107675402638595,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:06","end":"20:06","startHours":19.107675402638595,"endHours":20.107675402638595,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:06","end":"21:06","startHours":20.107675402638595,"endHours":21.107675402638595,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:06","end":"22:06","startHours":21.107675402638595,"endHours":22.107675402638595,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:06","end":"23:06","startHours":22.107675402638595,"endHours":23.107675402638595,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:06","end":"00:06","startHours":23.107675402638595,"endHours":24.107675402638595,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:06","end":"01:06","startHours":24.107675402638595,"endHours":25.107675402638595,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:06","end":"02:06","startHours":25.107675402638595,"endHours":26.107675402638595,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:06","end":"03:06","startHours":26.107675402638595,"endHours":27.107675402638595,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:06","end":"04:06","startHours":27.107675402638595,"endHours":28.107675402638595,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:06","end":"05:06","startHours":28.107675402638595,"endHours":29.107675402638595,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:06","end":"06:06","startHours":29.107675402638595,"endHours":30.107675402638595,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:06","end":"07:06","startHours":30.107675402638595,"endHours":31.107675402638595,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"South-West","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-16.49286504968812,"eotMinutes":-14.091724367993354,"ayanamsa":25.6423}},"calendars":{"vikram_samvat":2185,"vikram_samvatsara":"Plava","saka_samvat":2050,"saka_samvatsara":"Sarvadhāri","bengali_samvat":1535,"malayalam_era":1304,"nanakshahi_year":659,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Caturthī · Vikram 2185 Plava · Śaka 2050 Sarvadhāri"},"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":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 February 4, 2128 CE · Ṛṣikeśa · Vidhyamitra","description":"February 4, 2128 CE for Ṛṣikeśa: Śukla Caturthī, sūryodaya 07:06, sūryāsta 17:56.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2128-02-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2128-02-04","sa":"https://sa.vidhyamitra.com/city/rishikesh/2128-02-04","hi":"https://hi.vidhyamitra.com/city/rishikesh/2128-02-04","x-default":"https://vidhyamitra.com/city/rishikesh/2128-02-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-22T18:56:19.380Z","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":"2026-05-22T18:56:19.380Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-22T18:56:19.380Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}