{"id":"vidhyamitra:city-day:rishikesh:2112-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2112-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2112-02-01","date_display":"February 1, 2112 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":2112,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2492482.770833,"kali_year":5213,"ahargana":1904017.2708,"sun":{"sidereal_longitude":285.6114,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":323.3821,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":37.7707,"elapsed_within_tithi_degrees":1.7707},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2,"moon_longitude":323.3821,"elapsed_within_degrees":3.3821},"yoga":{"number":19,"name":"Parigha","sum_longitude":248.9935},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2112,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2492482.770833,"ahargana":1904017.2708,"kali_year":5213,"ayanamsa_lahiri":25.4187,"grahas":{"sun":{"sidereal_longitude":285.87318700000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":326.479687,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false,"latitude":-3.3098},"mars":{"sidereal_longitude":210.55458700000008,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":297.102987,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":180.46048700000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":259.39718700000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":307.503387,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":96.0022,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":276.0022,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":2112,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2492482.770833,"kali_year":5213,"ahargana":1904017.2708,"sun":{"sidereal_longitude":285.6114,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":323.3821,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":37.7707,"elapsed_within_tithi_degrees":1.7707},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2,"moon_longitude":323.3821,"elapsed_within_degrees":3.3821},"yoga":{"number":19,"name":"Parigha","sum_longitude":248.9935},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.31,"elongation":37.771},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.31,"opposition_distance":142.229}},"eclipse_window_40days":[{"offset_days":-18,"type":"lunar","occurs":true,"moon_latitude":-0.653,"opposition_distance":1.452},{"offset_days":-3,"type":"solar","occurs":true,"moon_latitude":-0.297,"elongation":2.597}]},"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":"07:08","sunsetLocal":"17:53","solarNoonLocal":"12:31","dayLengthHours":10.742808856779085,"dayLengthDisplay":"10 Hours 44 Mins 34 Secs","nightLengthDisplay":"13 Hours 15 Mins 26 Secs","moonriseLocal":"09:18","moonsetLocal":"21:08","rahuKala":{"name":"Rāhu Kāla","start":"08:29","end":"09:49","startHours":8.481762480664436,"endHours":9.82461358776182,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:10","end":"12:31","startHours":11.167464694859207,"endHours":12.510315801956594,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:51","end":"15:12","startHours":13.853166909053979,"endHours":15.196018016151363,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:39","end":"10:00","startHours":9.64556677348217,"endHours":10.003660402041472,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:35","end":"07:52","startHours":7.586528409266179,"endHours":7.873003312113621,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:52","startHours":12.152222173397291,"endHours":12.868409430515896,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:42","end":"06:25","startHours":5.706536859329839,"endHours":6.422724116448444,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:15","end":"07:08","startHours":6.243677302168793,"endHours":7.13891137356705,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:18","end":"15:01","startHours":14.300783944753107,"endHours":15.016971201871712,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:41","end":"18:05","startHours":17.681720230346137,"endHours":18.081720230346136,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:53","end":"18:20","startHours":17.881720230346136,"endHours":18.329337266045265,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:38","end":"19:23","startHours":17.631720230346136,"endHours":19.381720230346136,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:52","startHours":24.15222217339729,"endHours":24.868409430515896,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:08","end":"08:29","startHours":7.13891137356705,"endHours":8.481762480664436,"quality":"auspicious"},{"name":"Kāla","start":"08:29","end":"09:49","startHours":8.481762480664436,"endHours":9.82461358776182,"quality":"inauspicious"},{"name":"Śubha","start":"09:49","end":"11:10","startHours":9.82461358776182,"endHours":11.167464694859207,"quality":"auspicious"},{"name":"Roga","start":"11:10","end":"12:31","startHours":11.167464694859207,"endHours":12.510315801956594,"quality":"inauspicious"},{"name":"Udveg","start":"12:31","end":"13:51","startHours":12.510315801956594,"endHours":13.853166909053979,"quality":"inauspicious"},{"name":"Chala","start":"13:51","end":"15:12","startHours":13.853166909053979,"endHours":15.196018016151363,"quality":"neutral"},{"name":"Labha","start":"15:12","end":"16:32","startHours":15.196018016151363,"endHours":16.53886912324875,"quality":"auspicious"},{"name":"Amṛta","start":"16:32","end":"17:53","startHours":16.53886912324875,"endHours":17.881720230346136,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:53","end":"19:32","startHours":17.881720230346136,"endHours":19.53886912324875,"quality":"neutral"},{"name":"Labha","start":"19:32","end":"21:12","startHours":19.53886912324875,"endHours":21.196018016151363,"quality":"auspicious"},{"name":"Amṛta","start":"21:12","end":"22:51","startHours":21.196018016151363,"endHours":22.85316690905398,"quality":"auspicious"},{"name":"Kāla","start":"22:51","end":"00:31","startHours":22.85316690905398,"endHours":24.510315801956594,"quality":"inauspicious"},{"name":"Śubha","start":"00:31","end":"02:10","startHours":24.510315801956594,"endHours":26.16746469485921,"quality":"auspicious"},{"name":"Roga","start":"02:10","end":"03:49","startHours":26.16746469485921,"endHours":27.824613587761824,"quality":"inauspicious"},{"name":"Udveg","start":"03:49","end":"05:29","startHours":27.824613587761824,"endHours":29.481762480664436,"quality":"inauspicious"},{"name":"Chala","start":"05:29","end":"07:08","startHours":29.481762480664436,"endHours":31.13891137356705,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:08","end":"08:08","startHours":7.13891137356705,"endHours":8.138911373567051,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:08","end":"09:08","startHours":8.138911373567051,"endHours":9.138911373567051,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:08","end":"10:08","startHours":9.138911373567051,"endHours":10.138911373567051,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:08","end":"11:08","startHours":10.138911373567051,"endHours":11.138911373567051,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:08","end":"12:08","startHours":11.138911373567051,"endHours":12.138911373567051,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:08","end":"13:08","startHours":12.138911373567051,"endHours":13.138911373567051,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:08","end":"14:08","startHours":13.138911373567051,"endHours":14.138911373567051,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:08","end":"15:08","startHours":14.138911373567051,"endHours":15.138911373567051,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:08","end":"16:08","startHours":15.138911373567051,"endHours":16.13891137356705,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:08","end":"17:08","startHours":16.13891137356705,"endHours":17.13891137356705,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:08","end":"18:08","startHours":17.13891137356705,"endHours":18.13891137356705,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:08","end":"19:08","startHours":18.13891137356705,"endHours":19.13891137356705,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:08","end":"20:08","startHours":19.13891137356705,"endHours":20.13891137356705,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:08","end":"21:08","startHours":20.13891137356705,"endHours":21.13891137356705,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:08","end":"22:08","startHours":21.13891137356705,"endHours":22.13891137356705,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:08","end":"23:08","startHours":22.13891137356705,"endHours":23.13891137356705,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:08","end":"00:08","startHours":23.13891137356705,"endHours":24.13891137356705,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:08","end":"01:08","startHours":24.13891137356705,"endHours":25.13891137356705,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:08","end":"02:08","startHours":25.13891137356705,"endHours":26.13891137356705,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:08","end":"03:08","startHours":26.13891137356705,"endHours":27.13891137356705,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:08","end":"04:08","startHours":27.13891137356705,"endHours":28.13891137356705,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:08","end":"05:08","startHours":28.13891137356705,"endHours":29.13891137356705,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:08","end":"06:08","startHours":29.13891137356705,"endHours":30.13891137356705,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:08","end":"07:08","startHours":30.13891137356705,"endHours":31.13891137356705,"planetary_lord":"Venus"}],"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":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Ānanda","quality":"Auspicious"},"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":-17.38790213210641,"eotMinutes":-13.689348117395623,"ayanamsa":25.4187}},"calendars":{"vikram_samvat":2169,"vikram_samvatsara":"Pārthiva","saka_samvat":2034,"saka_samvatsara":"Aṅgirasa","bengali_samvat":1519,"malayalam_era":1288,"nanakshahi_year":643,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Caturthī · Vikram 2169 Pārthiva · Śaka 2034 Aṅgirasa"},"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":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 1, 2112 CE · Ṛṣikeśa · Vidhyamitra","description":"February 1, 2112 CE for Ṛṣikeśa: Śukla Caturthī, sūryodaya 07:08, sūryāsta 17:53.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2112-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2112-02-01","sa":"https://sa.vidhyamitra.com/city/rishikesh/2112-02-01","hi":"https://hi.vidhyamitra.com/city/rishikesh/2112-02-01","x-default":"https://vidhyamitra.com/city/rishikesh/2112-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T21:01:54.788Z","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":"2026-05-21T21:01:54.788Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T21:01:54.788Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}