{"id":"vidhyamitra:city-day:rishikesh:2131-02-02:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2131-02-02","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2131-02-02","date_display":"February 2, 2131 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":2131,"month":2,"day":2,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499423.770833,"kali_year":5232,"ahargana":1910958.2708,"sun":{"sidereal_longitude":286.7195,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":336.9339,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":50.2144,"elapsed_within_tithi_degrees":2.2144},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2,"moon_longitude":336.9339,"elapsed_within_degrees":3.6005},"yoga":{"number":20,"name":"Śiva","sum_longitude":263.6534},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2131,"month":2,"day":2,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2499423.770833,"ahargana":1910958.2708,"kali_year":5232,"ayanamsa_lahiri":25.6842,"grahas":{"sun":{"sidereal_longitude":287.01788899999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":339.603189,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false,"latitude":-4.192},"mars":{"sidereal_longitude":237.40428900000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":289.153089,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":19.207988999999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":245.4575890000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":198.448889,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":88.2346,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":268.2346,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"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":2131,"month":2,"day":2,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499423.770833,"kali_year":5232,"ahargana":1910958.2708,"sun":{"sidereal_longitude":286.7195,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":336.9339,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":50.2144,"elapsed_within_tithi_degrees":2.2144},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2,"moon_longitude":336.9339,"elapsed_within_degrees":3.6005},"yoga":{"number":20,"name":"Śiva","sum_longitude":263.6534},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.192,"elongation":50.214},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.192,"opposition_distance":129.786}},"eclipse_window_40days":[{"offset_days":-4,"type":"solar","occurs":true,"moon_latitude":-0.919,"elongation":2.391}]},"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":"07:07","sunsetLocal":"17:54","solarNoonLocal":"12:31","dayLengthHours":10.776213810955923,"dayLengthDisplay":"10 Hours 46 Mins 34 Secs","nightLengthDisplay":"13 Hours 13 Mins 26 Secs","moonriseLocal":"09:54","moonsetLocal":"22:09","rahuKala":{"name":"Rāhu Kāla","start":"11:10","end":"12:31","startHours":11.165738893420329,"endHours":12.512765619789821,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:12","end":"16:33","startHours":15.206819072528802,"endHours":16.55384579889829,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:28","end":"09:49","startHours":8.471685440681348,"endHours":9.81871216705084,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"10:00","startHours":9.639108603534908,"endHours":9.998315730566771,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:34","end":"07:52","startHours":7.573667623101689,"endHours":7.86103332472718,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:52","startHours":12.153558492757957,"endHours":12.871972746821685,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:41","end":"06:24","startHours":5.687830206184403,"endHours":6.40624446024813,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:14","end":"07:07","startHours":6.2266408967321984,"endHours":7.124658714311859,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:19","end":"15:02","startHours":14.308801254949142,"endHours":15.02721550901287,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:42","end":"18:06","startHours":17.700872525267783,"endHours":18.100872525267782,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:54","end":"18:21","startHours":17.900872525267783,"endHours":18.349881434057615,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:39","end":"19:24","startHours":17.650872525267783,"endHours":19.400872525267783,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:52","startHours":24.153558492757956,"endHours":24.871972746821687,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:07","end":"08:28","startHours":7.124658714311859,"endHours":8.471685440681348,"quality":"neutral"},{"name":"Labha","start":"08:28","end":"09:49","startHours":8.471685440681348,"endHours":9.81871216705084,"quality":"auspicious"},{"name":"Amṛta","start":"09:49","end":"11:10","startHours":9.81871216705084,"endHours":11.165738893420329,"quality":"auspicious"},{"name":"Kāla","start":"11:10","end":"12:31","startHours":11.165738893420329,"endHours":12.512765619789821,"quality":"inauspicious"},{"name":"Śubha","start":"12:31","end":"13:52","startHours":12.512765619789821,"endHours":13.85979234615931,"quality":"auspicious"},{"name":"Roga","start":"13:52","end":"15:12","startHours":13.85979234615931,"endHours":15.206819072528802,"quality":"inauspicious"},{"name":"Udveg","start":"15:12","end":"16:33","startHours":15.206819072528802,"endHours":16.55384579889829,"quality":"inauspicious"},{"name":"Chala","start":"16:33","end":"17:54","startHours":16.55384579889829,"endHours":17.900872525267783,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:54","end":"19:33","startHours":17.900872525267783,"endHours":19.553845798898294,"quality":"inauspicious"},{"name":"Udveg","start":"19:33","end":"21:12","startHours":19.553845798898294,"endHours":21.206819072528802,"quality":"inauspicious"},{"name":"Chala","start":"21:12","end":"22:52","startHours":21.206819072528802,"endHours":22.85979234615931,"quality":"neutral"},{"name":"Labha","start":"22:52","end":"00:31","startHours":22.85979234615931,"endHours":24.51276561978982,"quality":"auspicious"},{"name":"Amṛta","start":"00:31","end":"02:10","startHours":24.51276561978982,"endHours":26.165738893420333,"quality":"auspicious"},{"name":"Kāla","start":"02:10","end":"03:49","startHours":26.165738893420333,"endHours":27.81871216705084,"quality":"inauspicious"},{"name":"Śubha","start":"03:49","end":"05:28","startHours":27.81871216705084,"endHours":29.471685440681348,"quality":"auspicious"},{"name":"Roga","start":"05:28","end":"07:07","startHours":29.471685440681348,"endHours":31.12465871431186,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:07","end":"08:07","startHours":7.124658714311859,"endHours":8.12465871431186,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:07","end":"09:07","startHours":8.12465871431186,"endHours":9.12465871431186,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:07","end":"10:07","startHours":9.12465871431186,"endHours":10.12465871431186,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:07","end":"11:07","startHours":10.12465871431186,"endHours":11.12465871431186,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:07","end":"12:07","startHours":11.12465871431186,"endHours":12.12465871431186,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:07","end":"13:07","startHours":12.12465871431186,"endHours":13.12465871431186,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:07","end":"14:07","startHours":13.12465871431186,"endHours":14.12465871431186,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:07","end":"15:07","startHours":14.12465871431186,"endHours":15.12465871431186,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:07","end":"16:07","startHours":15.12465871431186,"endHours":16.12465871431186,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:07","end":"17:07","startHours":16.12465871431186,"endHours":17.12465871431186,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:07","end":"18:07","startHours":17.12465871431186,"endHours":18.12465871431186,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:07","end":"19:07","startHours":18.12465871431186,"endHours":19.12465871431186,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:07","end":"20:07","startHours":19.12465871431186,"endHours":20.12465871431186,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:07","end":"21:07","startHours":20.12465871431186,"endHours":21.12465871431186,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:07","end":"22:07","startHours":21.12465871431186,"endHours":22.12465871431186,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:07","end":"23:07","startHours":22.12465871431186,"endHours":23.12465871431186,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:07","end":"00:07","startHours":23.12465871431186,"endHours":24.12465871431186,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:07","end":"01:07","startHours":24.12465871431186,"endHours":25.12465871431186,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:07","end":"02:07","startHours":25.12465871431186,"endHours":26.12465871431186,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:07","end":"03:07","startHours":26.12465871431186,"endHours":27.12465871431186,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:07","end":"04:07","startHours":27.12465871431186,"endHours":28.12465871431186,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:07","end":"05:07","startHours":28.12465871431186,"endHours":29.12465871431186,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:07","end":"06:07","startHours":29.12465871431186,"endHours":30.12465871431186,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:07","end":"07:07","startHours":30.12465871431186,"endHours":31.12465871431186,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara 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":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"South-East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-16.99507824590486,"eotMinutes":-13.836337187389248,"ayanamsa":25.6842}},"calendars":{"vikram_samvat":2188,"vikram_samvatsara":"Krodhi","saka_samvat":2053,"saka_samvatsara":"Khara","bengali_samvat":1538,"malayalam_era":1307,"nanakshahi_year":662,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Pañcamī · Vikram 2188 Krodhi · Śaka 2053 Khara"},"festivals":[{"id":"sarasvati-jayanti","name":"Sarasvatī Jayantī (Vasanta Pañchamī)","name_sanskrit":"सरस्वती जयन्ती / वसन्त पञ्चमी","tradition":"Pan-Hindu","associated_deity":"Sarasvatī (Vāk-tattva)","significance":"Manifestation of Devī Sarasvatī; vidyā-ārambha day; vasanta-ṛtu begins.","vrata":true,"detection":{"tithi_number":5,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2,"sources":["Skanda Purāṇa","Devī Bhāgavata"]}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 2, 2131 CE · Ṛṣikeśa · Vidhyamitra","description":"February 2, 2131 CE for Ṛṣikeśa: Śukla Pañcamī, sūryodaya 07:07, sūryāsta 17:54.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2131-02-02","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2131-02-02","sa":"https://sa.vidhyamitra.com/city/rishikesh/2131-02-02","hi":"https://hi.vidhyamitra.com/city/rishikesh/2131-02-02","x-default":"https://vidhyamitra.com/city/rishikesh/2131-02-02"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T17:21:53.424Z","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":"2026-05-31T17:21:53.424Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T17:21:53.424Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}