{"id":"vidhyamitra:city-day:rishikesh:2160-02-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2160-02-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2160-02-21","date_display":"February 21, 2160 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":2160,"month":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2510034.770833,"kali_year":5261,"ahargana":1921569.2708,"sun":{"sidereal_longitude":305.5507,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":115.3406,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":169.7898,"elapsed_within_tithi_degrees":1.7898},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":115.3406,"elapsed_within_degrees":8.6739},"yoga":{"number":5,"name":"Śobhana","sum_longitude":60.8913},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2160,"month":2,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2510034.770833,"ahargana":1921569.2708,"kali_year":5261,"ayanamsa_lahiri":26.09,"grahas":{"sun":{"sidereal_longitude":305.809671,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":114.37287100000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false,"latitude":-3.4115},"mars":{"sidereal_longitude":357.609471,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":277.20787100000007,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":196.659671,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":286.925071,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":192.92427099999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":246.0128,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":66.0128,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4},"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":2160,"month":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2510034.770833,"kali_year":5261,"ahargana":1921569.2708,"sun":{"sidereal_longitude":305.5507,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":115.3406,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":169.7898,"elapsed_within_tithi_degrees":1.7898},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":115.3406,"elapsed_within_degrees":8.6739},"yoga":{"number":5,"name":"Śobhana","sum_longitude":60.8913},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.412,"elongation":169.79},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.412,"opposition_distance":10.21}},"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":"06:53","sunsetLocal":"18:10","solarNoonLocal":"12:31","dayLengthHours":11.28550539131843,"dayLengthDisplay":"11 Hours 17 Mins 08 Secs","nightLengthDisplay":"12 Hours 42 Mins 52 Secs","moonriseLocal":"17:08","moonsetLocal":"06:23","rahuKala":{"name":"Rāhu Kāla","start":"13:56","end":"15:20","startHours":13.929345546268744,"endHours":15.340033720183548,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:53","end":"08:17","startHours":6.8759046766947245,"endHours":8.286592850609528,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:42","end":"11:06","startHours":9.697281024524333,"endHours":11.107969198439136,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:31","end":"09:53","startHours":9.509189268002359,"endHours":9.885372781046307,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:21","end":"07:39","startHours":7.346134067999659,"endHours":7.647080878434817,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:54","startHours":12.142473859309991,"endHours":12.894840885397887,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:22","end":"06:07","startHours":5.371170624518934,"endHours":6.1235376506068295,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:56","end":"06:53","startHours":5.935445894084856,"endHours":6.8759046766947245,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:24","end":"15:09","startHours":14.399574937573679,"endHours":15.151941963661574,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:58","end":"18:22","startHours":17.961410068013155,"endHours":18.361410068013154,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:10","end":"18:38","startHours":18.161410068013154,"endHours":18.631639459318087,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:55","end":"19:40","startHours":17.911410068013154,"endHours":19.661410068013154,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:54","startHours":24.14247385930999,"endHours":24.894840885397887,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:53","end":"08:17","startHours":6.8759046766947245,"endHours":8.286592850609528,"quality":"auspicious"},{"name":"Roga","start":"08:17","end":"09:42","startHours":8.286592850609528,"endHours":9.697281024524333,"quality":"inauspicious"},{"name":"Udveg","start":"09:42","end":"11:06","startHours":9.697281024524333,"endHours":11.107969198439136,"quality":"inauspicious"},{"name":"Chala","start":"11:06","end":"12:31","startHours":11.107969198439136,"endHours":12.518657372353939,"quality":"neutral"},{"name":"Labha","start":"12:31","end":"13:56","startHours":12.518657372353939,"endHours":13.929345546268744,"quality":"auspicious"},{"name":"Amṛta","start":"13:56","end":"15:20","startHours":13.929345546268744,"endHours":15.340033720183548,"quality":"auspicious"},{"name":"Kāla","start":"15:20","end":"16:45","startHours":15.340033720183548,"endHours":16.75072189409835,"quality":"inauspicious"},{"name":"Śubha","start":"16:45","end":"18:10","startHours":16.75072189409835,"endHours":18.161410068013154,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:10","end":"19:45","startHours":18.161410068013154,"endHours":19.75072189409835,"quality":"auspicious"},{"name":"Kāla","start":"19:45","end":"21:20","startHours":19.75072189409835,"endHours":21.34003372018355,"quality":"inauspicious"},{"name":"Śubha","start":"21:20","end":"22:56","startHours":21.34003372018355,"endHours":22.929345546268742,"quality":"auspicious"},{"name":"Roga","start":"22:56","end":"00:31","startHours":22.929345546268742,"endHours":24.51865737235394,"quality":"inauspicious"},{"name":"Udveg","start":"00:31","end":"02:06","startHours":24.51865737235394,"endHours":26.107969198439136,"quality":"inauspicious"},{"name":"Chala","start":"02:06","end":"03:42","startHours":26.107969198439136,"endHours":27.69728102452433,"quality":"neutral"},{"name":"Labha","start":"03:42","end":"05:17","startHours":27.69728102452433,"endHours":29.286592850609527,"quality":"auspicious"},{"name":"Amṛta","start":"05:17","end":"06:53","startHours":29.286592850609527,"endHours":30.875904676694724,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:53","end":"07:53","startHours":6.8759046766947245,"endHours":7.8759046766947245,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:53","end":"08:53","startHours":7.8759046766947245,"endHours":8.875904676694724,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:53","end":"09:53","startHours":8.875904676694724,"endHours":9.875904676694724,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:53","end":"10:53","startHours":9.875904676694724,"endHours":10.875904676694724,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:53","end":"11:53","startHours":10.875904676694724,"endHours":11.875904676694724,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:53","end":"12:53","startHours":11.875904676694724,"endHours":12.875904676694724,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:53","end":"13:53","startHours":12.875904676694724,"endHours":13.875904676694724,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:53","end":"14:53","startHours":13.875904676694724,"endHours":14.875904676694724,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:53","end":"15:53","startHours":14.875904676694724,"endHours":15.875904676694724,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:53","end":"16:53","startHours":15.875904676694724,"endHours":16.875904676694724,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:53","end":"17:53","startHours":16.875904676694724,"endHours":17.875904676694724,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:53","end":"18:53","startHours":17.875904676694724,"endHours":18.875904676694724,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:53","end":"19:53","startHours":18.875904676694724,"endHours":19.875904676694724,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:53","end":"20:53","startHours":19.875904676694724,"endHours":20.875904676694724,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:53","end":"21:53","startHours":20.875904676694724,"endHours":21.875904676694724,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:53","end":"22:53","startHours":21.875904676694724,"endHours":22.875904676694724,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:53","end":"23:53","startHours":22.875904676694724,"endHours":23.875904676694724,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:53","end":"00:53","startHours":23.875904676694724,"endHours":24.875904676694724,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:53","end":"01:53","startHours":24.875904676694724,"endHours":25.875904676694724,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:53","end":"02:53","startHours":25.875904676694724,"endHours":26.875904676694724,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:53","end":"03:53","startHours":26.875904676694724,"endHours":27.875904676694724,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:53","end":"04:53","startHours":27.875904676694724,"endHours":28.875904676694724,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:53","end":"05:53","startHours":28.875904676694724,"endHours":29.875904676694724,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:53","end":"06:53","startHours":29.875904676694724,"endHours":30.875904676694724,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-10.797516060317559,"eotMinutes":-14.189842341236304,"ayanamsa":26.09}},"calendars":{"vikram_samvat":2217,"vikram_samvatsara":"Śrīmukha","saka_samvat":2082,"saka_samvatsara":"Raudra","bengali_samvat":1567,"malayalam_era":1336,"nanakshahi_year":691,"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":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Pūrṇimā · Vikram 2217 Śrīmukha · Śaka 2082 Raudra"},"festivals":[{"id":"magha-purnima","name":"Māghī Pūrṇimā","name_sanskrit":"माघी पूर्णिमा","tradition":"Pan-Hindu","significance":"Sacred snāna at Prayāga; Māgha-snāna culmination.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","relevance":0.5}]},"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 21, 2160 CE · Ṛṣikeśa · Vidhyamitra","description":"February 21, 2160 CE for Ṛṣikeśa: Śukla Pūrṇimā, sūryodaya 06:53, sūryāsta 18:10.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2160-02-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2160-02-21","sa":"https://sa.vidhyamitra.com/city/rishikesh/2160-02-21","hi":"https://hi.vidhyamitra.com/city/rishikesh/2160-02-21","x-default":"https://vidhyamitra.com/city/rishikesh/2160-02-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T21:49:18.134Z","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":"2026-05-31T21:49:18.134Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T21:49:18.134Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}