{"id":"vidhyamitra:city-day:rishikesh:2166-02-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2166-02-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2166-02-17","date_display":"February 17, 2166 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":2166,"month":2,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2512222.770833,"kali_year":5267,"ahargana":1923757.2708,"sun":{"sidereal_longitude":301.9472,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":146.7003,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":204.753,"elapsed_within_tithi_degrees":0.753},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":146.7003,"elapsed_within_degrees":0.0336},"yoga":{"number":7,"name":"Sukarma","sum_longitude":88.6475},"karana":{"half_tithi_index":34,"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":2166,"month":2,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2512222.770833,"ahargana":1923757.2708,"kali_year":5267,"ayanamsa_lahiri":26.1737,"grahas":{"sun":{"sidereal_longitude":302.236573,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":144.05927299999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false,"latitude":1.2858},"mars":{"sidereal_longitude":62.440972999999985,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":278.6252730000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":2.3555729999999926,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":253.407373,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":258.066873,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":130.082,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":310.082,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","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":2166,"month":2,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2512222.770833,"kali_year":5267,"ahargana":1923757.2708,"sun":{"sidereal_longitude":301.9472,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":146.7003,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":204.753,"elapsed_within_tithi_degrees":0.753},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":146.7003,"elapsed_within_degrees":0.0336},"yoga":{"number":7,"name":"Sukarma","sum_longitude":88.6475},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.286,"elongation":155.247},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.286,"opposition_distance":24.753}},"eclipse_window_40days":[{"offset_days":-2,"type":"lunar","occurs":true,"moon_latitude":-0.683,"opposition_distance":1.528}]},"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":"06:56","sunsetLocal":"18:07","solarNoonLocal":"12:31","dayLengthHours":11.186855145856242,"dayLengthDisplay":"11 Hours 11 Mins 13 Secs","nightLengthDisplay":"12 Hours 48 Mins 47 Secs","moonriseLocal":"19:47","moonsetLocal":"08:10","rahuKala":{"name":"Rāhu Kāla","start":"08:20","end":"09:44","startHours":8.328632126159512,"endHours":9.726989019391542,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:08","end":"12:31","startHours":11.125345912623573,"endHours":12.523702805855603,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:55","end":"15:19","startHours":13.922059699087633,"endHours":15.320416592319663,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:32","end":"09:55","startHours":9.540541433627272,"endHours":9.913436605155814,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:24","end":"07:42","startHours":7.396394197338159,"endHours":7.694710334560992,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:54","startHours":12.15080763432706,"endHours":12.896597977384145,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:26","end":"06:11","startHours":5.438694546813317,"endHours":6.1844848898704,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:00","end":"06:56","startHours":5.998037304106129,"endHours":6.930275232927483,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:23","end":"15:08","startHours":14.38817866349831,"endHours":15.133969006555393,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:55","end":"18:19","startHours":17.917130378783725,"endHours":18.317130378783723,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:07","end":"18:35","startHours":18.117130378783724,"endHours":18.5832493431944,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:52","end":"19:37","startHours":17.867130378783724,"endHours":19.617130378783724,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:54","startHours":24.150807634327062,"endHours":24.896597977384143,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:56","end":"08:20","startHours":6.930275232927483,"endHours":8.328632126159512,"quality":"auspicious"},{"name":"Kāla","start":"08:20","end":"09:44","startHours":8.328632126159512,"endHours":9.726989019391542,"quality":"inauspicious"},{"name":"Śubha","start":"09:44","end":"11:08","startHours":9.726989019391542,"endHours":11.125345912623573,"quality":"auspicious"},{"name":"Roga","start":"11:08","end":"12:31","startHours":11.125345912623573,"endHours":12.523702805855603,"quality":"inauspicious"},{"name":"Udveg","start":"12:31","end":"13:55","startHours":12.523702805855603,"endHours":13.922059699087633,"quality":"inauspicious"},{"name":"Chala","start":"13:55","end":"15:19","startHours":13.922059699087633,"endHours":15.320416592319663,"quality":"neutral"},{"name":"Labha","start":"15:19","end":"16:43","startHours":15.320416592319663,"endHours":16.718773485551694,"quality":"auspicious"},{"name":"Amṛta","start":"16:43","end":"18:07","startHours":16.718773485551694,"endHours":18.117130378783724,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:07","end":"19:43","startHours":18.117130378783724,"endHours":19.718773485551694,"quality":"neutral"},{"name":"Labha","start":"19:43","end":"21:19","startHours":19.718773485551694,"endHours":21.320416592319663,"quality":"auspicious"},{"name":"Amṛta","start":"21:19","end":"22:55","startHours":21.320416592319663,"endHours":22.922059699087633,"quality":"auspicious"},{"name":"Kāla","start":"22:55","end":"00:31","startHours":22.922059699087633,"endHours":24.523702805855603,"quality":"inauspicious"},{"name":"Śubha","start":"00:31","end":"02:08","startHours":24.523702805855603,"endHours":26.125345912623573,"quality":"auspicious"},{"name":"Roga","start":"02:08","end":"03:44","startHours":26.125345912623573,"endHours":27.726989019391542,"quality":"inauspicious"},{"name":"Udveg","start":"03:44","end":"05:20","startHours":27.726989019391542,"endHours":29.328632126159512,"quality":"inauspicious"},{"name":"Chala","start":"05:20","end":"06:56","startHours":29.328632126159512,"endHours":30.93027523292748,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:56","end":"07:56","startHours":6.930275232927483,"endHours":7.930275232927483,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:56","end":"08:56","startHours":7.930275232927483,"endHours":8.930275232927482,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:56","end":"09:56","startHours":8.930275232927482,"endHours":9.930275232927482,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:56","end":"10:56","startHours":9.930275232927482,"endHours":10.930275232927482,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:56","end":"11:56","startHours":10.930275232927482,"endHours":11.930275232927482,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:56","end":"12:56","startHours":11.930275232927482,"endHours":12.930275232927482,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:56","end":"13:56","startHours":12.930275232927482,"endHours":13.930275232927482,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:56","end":"14:56","startHours":13.930275232927482,"endHours":14.930275232927482,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:56","end":"15:56","startHours":14.930275232927482,"endHours":15.930275232927482,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:56","end":"16:56","startHours":15.930275232927482,"endHours":16.93027523292748,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:56","end":"17:56","startHours":16.93027523292748,"endHours":17.93027523292748,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:56","end":"18:56","startHours":17.93027523292748,"endHours":18.93027523292748,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:56","end":"19:56","startHours":18.93027523292748,"endHours":19.93027523292748,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:56","end":"20:56","startHours":19.93027523292748,"endHours":20.93027523292748,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:56","end":"21:56","startHours":20.93027523292748,"endHours":21.93027523292748,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:56","end":"22:56","startHours":21.93027523292748,"endHours":22.93027523292748,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:56","end":"23:56","startHours":22.93027523292748,"endHours":23.93027523292748,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:56","end":"00:56","startHours":23.93027523292748,"endHours":24.93027523292748,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:56","end":"01:56","startHours":24.93027523292748,"endHours":25.93027523292748,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:56","end":"02:56","startHours":25.93027523292748,"endHours":26.93027523292748,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:56","end":"03:56","startHours":26.93027523292748,"endHours":27.93027523292748,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:56","end":"04:56","startHours":27.93027523292748,"endHours":28.93027523292748,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:56","end":"05:56","startHours":28.93027523292748,"endHours":29.93027523292748,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:56","end":"06:56","startHours":29.93027523292748,"endHours":30.93027523292748,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-12.025409685258662,"eotMinutes":-14.492568351336082,"ayanamsa":26.1737}},"calendars":{"vikram_samvat":2223,"vikram_samvatsara":"Pramāthi","saka_samvat":2088,"saka_samvatsara":"Akṣaya","bengali_samvat":1573,"malayalam_era":1342,"nanakshahi_year":697,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","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":"Phālguna Kṛṣṇa Tṛtīyā · Vikram 2223 Pramāthi · Śaka 2088 Akṣaya"},"festivals":[],"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 17, 2166 CE · Ṛṣikeśa · Vidhyamitra","description":"February 17, 2166 CE for Ṛṣikeśa: Kṛṣṇa Tṛtīyā, sūryodaya 06:56, sūryāsta 18:07.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2166-02-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2166-02-17","sa":"https://sa.vidhyamitra.com/city/rishikesh/2166-02-17","hi":"https://hi.vidhyamitra.com/city/rishikesh/2166-02-17","x-default":"https://vidhyamitra.com/city/rishikesh/2166-02-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T23:16:09.850Z","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":"2026-05-31T23:16:09.850Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T23:16:09.850Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}