{"id":"vidhyamitra:city-day:rishikesh:2122-02-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2122-02-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2122-02-10","date_display":"February 10, 2122 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":2122,"month":2,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2496144.770833,"kali_year":5223,"ahargana":1907679.2708,"sun":{"sidereal_longitude":295.2197,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":331.4856,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":36.2659,"elapsed_within_tithi_degrees":0.2659},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4,"moon_longitude":331.4856,"elapsed_within_degrees":11.4856},"yoga":{"number":21,"name":"Siddha","sum_longitude":266.7053},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2122,"month":2,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2496144.770833,"ahargana":1907679.2708,"kali_year":5223,"ayanamsa_lahiri":25.5588,"grahas":{"sun":{"sidereal_longitude":295.443171,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":334.491171,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false,"latitude":4.2149},"mars":{"sidereal_longitude":297.054171,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":273.40177100000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":120.13277099999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":309.08557099999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":75.353071,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":261.9718,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":81.9718,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","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":2122,"month":2,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2496144.770833,"kali_year":5223,"ahargana":1907679.2708,"sun":{"sidereal_longitude":295.2197,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":331.4856,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":36.2659,"elapsed_within_tithi_degrees":0.2659},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4,"moon_longitude":331.4856,"elapsed_within_degrees":11.4856},"yoga":{"number":21,"name":"Siddha","sum_longitude":266.7053},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.215,"elongation":36.266},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.215,"opposition_distance":143.734}},"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":"07:02","sunsetLocal":"18:01","solarNoonLocal":"12:31","dayLengthHours":10.98536703858247,"dayLengthDisplay":"10 Hours 59 Mins 07 Secs","nightLengthDisplay":"13 Hours 00 Mins 53 Secs","moonriseLocal":"09:05","moonsetLocal":"21:10","rahuKala":{"name":"Rāhu Kāla","start":"15:16","end":"16:39","startHours":15.27094651783769,"endHours":16.644117397660498,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:47","end":"11:09","startHours":9.778262998546452,"endHours":11.15143387836926,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:31","end":"13:54","startHours":12.52460475819207,"endHours":13.897775638014878,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:36","end":"09:58","startHours":9.59517354790341,"endHours":9.961352449189494,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:29","end":"07:47","startHours":7.4896448655084376,"endHours":7.782587986537304,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:10","end":"12:53","startHours":12.158425856905989,"endHours":12.890783659478153,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:34","end":"06:18","startHours":5.5672056337565055,"endHours":6.29956343632867,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:07","end":"07:02","startHours":6.116473985685629,"endHours":7.031921238900835,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:21","end":"15:05","startHours":14.355499264622482,"endHours":15.087857067194648,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:49","end":"18:13","startHours":17.817288277483307,"endHours":18.217288277483306,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:01","end":"18:29","startHours":18.017288277483306,"endHours":18.47501190409091,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:46","end":"19:31","startHours":17.767288277483306,"endHours":19.517288277483306,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:10","end":"00:53","startHours":24.158425856905986,"endHours":24.890783659478153,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:02","end":"08:24","startHours":7.031921238900835,"endHours":8.405092118723644,"quality":"inauspicious"},{"name":"Udveg","start":"08:24","end":"09:47","startHours":8.405092118723644,"endHours":9.778262998546452,"quality":"inauspicious"},{"name":"Chala","start":"09:47","end":"11:09","startHours":9.778262998546452,"endHours":11.15143387836926,"quality":"neutral"},{"name":"Labha","start":"11:09","end":"12:31","startHours":11.15143387836926,"endHours":12.52460475819207,"quality":"auspicious"},{"name":"Amṛta","start":"12:31","end":"13:54","startHours":12.52460475819207,"endHours":13.897775638014878,"quality":"auspicious"},{"name":"Kāla","start":"13:54","end":"15:16","startHours":13.897775638014878,"endHours":15.27094651783769,"quality":"inauspicious"},{"name":"Śubha","start":"15:16","end":"16:39","startHours":15.27094651783769,"endHours":16.644117397660498,"quality":"auspicious"},{"name":"Roga","start":"16:39","end":"18:01","startHours":16.644117397660498,"endHours":18.017288277483306,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:01","end":"19:39","startHours":18.017288277483306,"endHours":19.644117397660498,"quality":"inauspicious"},{"name":"Śubha","start":"19:39","end":"21:16","startHours":19.644117397660498,"endHours":21.27094651783769,"quality":"auspicious"},{"name":"Roga","start":"21:16","end":"22:54","startHours":21.27094651783769,"endHours":22.897775638014878,"quality":"inauspicious"},{"name":"Udveg","start":"22:54","end":"00:31","startHours":22.897775638014878,"endHours":24.52460475819207,"quality":"inauspicious"},{"name":"Chala","start":"00:31","end":"02:09","startHours":24.52460475819207,"endHours":26.15143387836926,"quality":"neutral"},{"name":"Labha","start":"02:09","end":"03:47","startHours":26.15143387836926,"endHours":27.778262998546452,"quality":"auspicious"},{"name":"Amṛta","start":"03:47","end":"05:24","startHours":27.778262998546452,"endHours":29.405092118723644,"quality":"auspicious"},{"name":"Kāla","start":"05:24","end":"07:02","startHours":29.405092118723644,"endHours":31.031921238900836,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:02","end":"08:02","startHours":7.031921238900835,"endHours":8.031921238900836,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:02","end":"09:02","startHours":8.031921238900836,"endHours":9.031921238900836,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:02","end":"10:02","startHours":9.031921238900836,"endHours":10.031921238900836,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:02","end":"11:02","startHours":10.031921238900836,"endHours":11.031921238900836,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:02","end":"12:02","startHours":11.031921238900836,"endHours":12.031921238900836,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:02","end":"13:02","startHours":12.031921238900836,"endHours":13.031921238900836,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:02","end":"14:02","startHours":13.031921238900836,"endHours":14.031921238900836,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:02","end":"15:02","startHours":14.031921238900836,"endHours":15.031921238900836,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:02","end":"16:02","startHours":15.031921238900836,"endHours":16.031921238900836,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:02","end":"17:02","startHours":16.031921238900836,"endHours":17.031921238900836,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:02","end":"18:02","startHours":17.031921238900836,"endHours":18.031921238900836,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:02","end":"19:02","startHours":18.031921238900836,"endHours":19.031921238900836,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:02","end":"20:02","startHours":19.031921238900836,"endHours":20.031921238900836,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:02","end":"21:02","startHours":20.031921238900836,"endHours":21.031921238900836,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:02","end":"22:02","startHours":21.031921238900836,"endHours":22.031921238900836,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:02","end":"23:02","startHours":22.031921238900836,"endHours":23.031921238900836,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:02","end":"00:02","startHours":23.031921238900836,"endHours":24.031921238900836,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:02","end":"01:02","startHours":24.031921238900836,"endHours":25.031921238900836,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:02","end":"02:02","startHours":25.031921238900836,"endHours":26.031921238900836,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:02","end":"03:02","startHours":26.031921238900836,"endHours":27.031921238900836,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:02","end":"04:02","startHours":27.031921238900836,"endHours":28.031921238900836,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:02","end":"05:02","startHours":28.031921238900836,"endHours":29.031921238900836,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:02","end":"06:02","startHours":29.031921238900836,"endHours":30.031921238900836,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:02","end":"07:02","startHours":30.031921238900836,"endHours":31.031921238900836,"planetary_lord":"Saturn"}],"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":"North","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-14.494704015195788,"eotMinutes":-14.546685491524224,"ayanamsa":25.5588}},"calendars":{"vikram_samvat":2179,"vikram_samvatsara":"Manmatha","saka_samvat":2044,"saka_samvatsara":"Citrabhānu","bengali_samvat":1529,"malayalam_era":1298,"nanakshahi_year":653,"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 Caturthī · Vikram 2179 Manmatha · Śaka 2044 Citrabhānu"},"festivals":[{"id":"angarika-chaturthi","name":"Aṅgāraka Caturthī (Tuesday Caturthī)","name_sanskrit":"अङ्गारक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa + Maṅgala","significance":"Tuesday-Caturthī (rare); supremely auspicious for Maṅgala-doṣa-nivāraṇa.","vrata":true,"detection":{"any_of":[{"tithi_number":4,"vara_name":"Maṅgalavāra (Tuesday)"},{"tithi_number":19,"vara_name":"Maṅgalavāra (Tuesday)"}]},"precedence":3},{"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":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 10, 2122 CE · Ṛṣikeśa · Vidhyamitra","description":"February 10, 2122 CE for Ṛṣikeśa: Śukla Caturthī, sūryodaya 07:02, sūryāsta 18:01.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2122-02-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2122-02-10","sa":"https://sa.vidhyamitra.com/city/rishikesh/2122-02-10","hi":"https://hi.vidhyamitra.com/city/rishikesh/2122-02-10","x-default":"https://vidhyamitra.com/city/rishikesh/2122-02-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T14:25:56.431Z","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":"2026-05-31T14:25:56.431Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T14:25:56.431Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}