{"id":"vidhyamitra:city-day:rishikesh:2161-02-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2161-02-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2161-02-17","date_display":"February 17, 2161 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":2161,"month":2,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2510396.770833,"kali_year":5262,"ahargana":1921931.2708,"sun":{"sidereal_longitude":302.2455,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":207.1369,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":264.8914,"elapsed_within_tithi_degrees":0.8914},"nakshatra":{"number":16,"name":"Viśākhā","pada":3,"moon_longitude":207.1369,"elapsed_within_degrees":7.1369},"yoga":{"number":12,"name":"Dhruva","sum_longitude":149.3824},"karana":{"half_tithi_index":44,"name":"Bālava"},"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":2161,"month":2,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2510396.770833,"ahargana":1921931.2708,"kali_year":5262,"ayanamsa_lahiri":26.1039,"grahas":{"sun":{"sidereal_longitude":302.52144,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":210.90733999999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false,"latitude":-1.5152},"mars":{"sidereal_longitude":234.46974,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":278.86744,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":224.97654,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":290.52103999999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":204.57994000000008,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":226.8323,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":46.8323,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":2161,"month":2,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2510396.770833,"kali_year":5262,"ahargana":1921931.2708,"sun":{"sidereal_longitude":302.2455,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":207.1369,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":264.8914,"elapsed_within_tithi_degrees":0.8914},"nakshatra":{"number":16,"name":"Viśākhā","pada":3,"moon_longitude":207.1369,"elapsed_within_degrees":7.1369},"yoga":{"number":12,"name":"Dhruva","sum_longitude":149.3824},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.515,"elongation":95.109},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.515,"opposition_distance":84.891}},"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":"06:56","sunsetLocal":"18:07","solarNoonLocal":"12:31","dayLengthHours":11.192873298905434,"dayLengthDisplay":"11 Hours 11 Mins 34 Secs","nightLengthDisplay":"12 Hours 48 Mins 26 Secs","moonriseLocal":"01:09","moonsetLocal":"11:41","rahuKala":{"name":"Rāhu Kāla","start":"15:19","end":"16:43","startHours":15.321921130581961,"endHours":16.721030292945137,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:44","end":"11:07","startHours":9.725484481129243,"endHours":11.124593643492423,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:31","end":"13:55","startHours":12.523702805855603,"endHours":13.922811968218781,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:32","end":"09:55","startHours":9.538936592814153,"endHours":9.912032369444333,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:24","end":"07:42","startHours":7.393635877190611,"endHours":7.692112498494756,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:54","startHours":12.150607029225421,"endHours":12.896798582485784,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:26","end":"06:11","startHours":5.43488304988216,"endHours":6.181074603142522,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:00","end":"06:56","startHours":5.9945267148274315,"endHours":6.927266156402885,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:23","end":"15:08","startHours":14.389181689006508,"endHours":15.13537324226687,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:55","end":"18:19","startHours":17.92013945530832,"endHours":18.32013945530832,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:07","end":"18:35","startHours":18.12013945530832,"endHours":18.586509176096044,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:52","end":"19:37","startHours":17.87013945530832,"endHours":19.62013945530832,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:54","startHours":24.150607029225423,"endHours":24.896798582485783,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:56","end":"08:20","startHours":6.927266156402885,"endHours":8.326375318766065,"quality":"inauspicious"},{"name":"Udveg","start":"08:20","end":"09:44","startHours":8.326375318766065,"endHours":9.725484481129243,"quality":"inauspicious"},{"name":"Chala","start":"09:44","end":"11:07","startHours":9.725484481129243,"endHours":11.124593643492423,"quality":"neutral"},{"name":"Labha","start":"11:07","end":"12:31","startHours":11.124593643492423,"endHours":12.523702805855603,"quality":"auspicious"},{"name":"Amṛta","start":"12:31","end":"13:55","startHours":12.523702805855603,"endHours":13.922811968218781,"quality":"auspicious"},{"name":"Kāla","start":"13:55","end":"15:19","startHours":13.922811968218781,"endHours":15.321921130581961,"quality":"inauspicious"},{"name":"Śubha","start":"15:19","end":"16:43","startHours":15.321921130581961,"endHours":16.721030292945137,"quality":"auspicious"},{"name":"Roga","start":"16:43","end":"18:07","startHours":16.721030292945137,"endHours":18.12013945530832,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:07","end":"19:43","startHours":18.12013945530832,"endHours":19.72103029294514,"quality":"inauspicious"},{"name":"Śubha","start":"19:43","end":"21:19","startHours":19.72103029294514,"endHours":21.32192113058196,"quality":"auspicious"},{"name":"Roga","start":"21:19","end":"22:55","startHours":21.32192113058196,"endHours":22.92281196821878,"quality":"inauspicious"},{"name":"Udveg","start":"22:55","end":"00:31","startHours":22.92281196821878,"endHours":24.523702805855603,"quality":"inauspicious"},{"name":"Chala","start":"00:31","end":"02:07","startHours":24.523702805855603,"endHours":26.124593643492425,"quality":"neutral"},{"name":"Labha","start":"02:07","end":"03:44","startHours":26.124593643492425,"endHours":27.725484481129243,"quality":"auspicious"},{"name":"Amṛta","start":"03:44","end":"05:20","startHours":27.725484481129243,"endHours":29.326375318766065,"quality":"auspicious"},{"name":"Kāla","start":"05:20","end":"06:56","startHours":29.326375318766065,"endHours":30.927266156402887,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:56","end":"07:56","startHours":6.927266156402885,"endHours":7.927266156402885,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:56","end":"08:56","startHours":7.927266156402885,"endHours":8.927266156402885,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:56","end":"09:56","startHours":8.927266156402885,"endHours":9.927266156402885,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:56","end":"10:56","startHours":9.927266156402885,"endHours":10.927266156402885,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:56","end":"11:56","startHours":10.927266156402885,"endHours":11.927266156402885,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:56","end":"12:56","startHours":11.927266156402885,"endHours":12.927266156402885,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:56","end":"13:56","startHours":12.927266156402885,"endHours":13.927266156402885,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:56","end":"14:56","startHours":13.927266156402885,"endHours":14.927266156402885,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:56","end":"15:56","startHours":14.927266156402885,"endHours":15.927266156402885,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:56","end":"16:56","startHours":15.927266156402885,"endHours":16.927266156402887,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:56","end":"17:56","startHours":16.927266156402887,"endHours":17.927266156402887,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:56","end":"18:56","startHours":17.927266156402887,"endHours":18.927266156402887,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:56","end":"19:56","startHours":18.927266156402887,"endHours":19.927266156402887,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:56","end":"20:56","startHours":19.927266156402887,"endHours":20.927266156402887,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:56","end":"21:56","startHours":20.927266156402887,"endHours":21.927266156402887,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:56","end":"22:56","startHours":21.927266156402887,"endHours":22.927266156402887,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:56","end":"23:56","startHours":22.927266156402887,"endHours":23.927266156402887,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:56","end":"00:56","startHours":23.927266156402887,"endHours":24.927266156402887,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:56","end":"01:56","startHours":24.927266156402887,"endHours":25.927266156402887,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:56","end":"02:56","startHours":25.927266156402887,"endHours":26.927266156402887,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:56","end":"03:56","startHours":26.927266156402887,"endHours":27.927266156402887,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:56","end":"04:56","startHours":27.927266156402887,"endHours":28.927266156402887,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:56","end":"05:56","startHours":28.927266156402887,"endHours":29.927266156402887,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:56","end":"06:56","startHours":29.927266156402887,"endHours":30.927266156402887,"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":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"North-East","rahuVasa":"North","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-11.950835324761488,"eotMinutes":-14.492568351336082,"ayanamsa":26.1039}},"calendars":{"vikram_samvat":2218,"vikram_samvatsara":"Bhāva","saka_samvat":2083,"saka_samvatsara":"Durmati","bengali_samvat":1568,"malayalam_era":1337,"nanakshahi_year":692,"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 Aṣṭamī · Vikram 2218 Bhāva · Śaka 2083 Durmati"},"festivals":[{"id":"sitashtami","name":"Sītāṣṭamī","name_sanskrit":"सीताष्टमी","tradition":"Vaishnava","associated_deity":"Sītā Devī","significance":"Birth-anniversary of Sītā per Phālguna-Kṛṣṇa-Aṣṭamī tradition.","vrata":true,"detection":{"tithi_number":23,"tithi_paksha":"Kṛṣṇa","lunar_month":"Phālguna"},"precedence":3}],"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":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","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 17, 2161 CE · Ṛṣikeśa · Vidhyamitra","description":"February 17, 2161 CE for Ṛṣikeśa: Kṛṣṇa Aṣṭamī, sūryodaya 06:56, sūryāsta 18:07.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2161-02-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2161-02-17","sa":"https://sa.vidhyamitra.com/city/rishikesh/2161-02-17","hi":"https://hi.vidhyamitra.com/city/rishikesh/2161-02-17","x-default":"https://vidhyamitra.com/city/rishikesh/2161-02-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T09:02:23.370Z","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":"2026-05-31T09:02:23.370Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T09:02:23.370Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}