{"id":"vidhyamitra:city-day:rishikesh:2009-09-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2009-09-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2009-09-17","date_display":"September 17, 2009 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":2009,"month":9,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455091.770833,"kali_year":5111,"ahargana":1866626.2708,"sun":{"sidereal_longitude":149.5468,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":128.0097,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":338.4629,"elapsed_within_tithi_degrees":2.4629},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":128.0097,"elapsed_within_degrees":8.0097},"yoga":{"number":21,"name":"Siddha","sum_longitude":277.5565},"karana":{"half_tithi_index":56,"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":2009,"month":9,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455091.770833,"ahargana":1866626.2708,"kali_year":5111,"ayanamsa_lahiri":23.9887,"grahas":{"sun":{"sidereal_longitude":150.301398,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":126.70709799999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false,"latitude":-2.306},"mars":{"sidereal_longitude":79.592398,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":157.20139800000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":294.61309800000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":121.61659800000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":150.673698,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":277.1573,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":97.1573,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":2009,"month":9,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455091.770833,"kali_year":5111,"ahargana":1866626.2708,"sun":{"sidereal_longitude":149.5468,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":128.0097,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":338.4629,"elapsed_within_tithi_degrees":2.4629},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":128.0097,"elapsed_within_degrees":8.0097},"yoga":{"number":21,"name":"Siddha","sum_longitude":277.5565},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.306,"elongation":21.537},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.306,"opposition_distance":158.463}},"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":"06:02","sunsetLocal":"18:20","solarNoonLocal":"12:11","dayLengthHours":12.303820078652338,"dayLengthDisplay":"12 Hours 18 Mins 14 Secs","nightLengthDisplay":"11 Hours 41 Mins 46 Secs","moonriseLocal":"04:07","moonsetLocal":"17:05","rahuKala":{"name":"Rāhu Kāla","start":"13:43","end":"15:15","startHours":13.716144780575412,"endHours":15.254122290406954,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:02","end":"07:34","startHours":6.0262572314177,"endHours":7.564234741249242,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:06","end":"10:38","startHours":9.102212251080784,"endHours":10.640189760912328,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:18","startHours":8.897148583103245,"endHours":9.307275919058323,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:32","end":"06:52","startHours":6.538916401361548,"endHours":6.867018270125611,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:35","startHours":11.768039934788792,"endHours":12.588294606698948,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:23","end":"05:12","startHours":4.385747887597389,"endHours":5.206002559507544,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:00","end":"06:02","startHours":5.000938891530005,"endHours":6.0262572314177,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:14","end":"15:03","startHours":14.228803950519259,"endHours":15.049058622429415,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:08","end":"18:32","startHours":18.13007731007004,"endHours":18.530077310070038,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:20","end":"18:51","startHours":18.33007731007004,"endHours":18.842736480013887,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:05","end":"19:50","startHours":18.08007731007004,"endHours":19.83007731007004,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:35","startHours":23.768039934788792,"endHours":24.58829460669895,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:02","end":"07:34","startHours":6.0262572314177,"endHours":7.564234741249242,"quality":"auspicious"},{"name":"Roga","start":"07:34","end":"09:06","startHours":7.564234741249242,"endHours":9.102212251080784,"quality":"inauspicious"},{"name":"Udveg","start":"09:06","end":"10:38","startHours":9.102212251080784,"endHours":10.640189760912328,"quality":"inauspicious"},{"name":"Chala","start":"10:38","end":"12:11","startHours":10.640189760912328,"endHours":12.17816727074387,"quality":"neutral"},{"name":"Labha","start":"12:11","end":"13:43","startHours":12.17816727074387,"endHours":13.716144780575412,"quality":"auspicious"},{"name":"Amṛta","start":"13:43","end":"15:15","startHours":13.716144780575412,"endHours":15.254122290406954,"quality":"auspicious"},{"name":"Kāla","start":"15:15","end":"16:48","startHours":15.254122290406954,"endHours":16.792099800238496,"quality":"inauspicious"},{"name":"Śubha","start":"16:48","end":"18:20","startHours":16.792099800238496,"endHours":18.33007731007004,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:20","end":"19:48","startHours":18.33007731007004,"endHours":19.792099800238496,"quality":"auspicious"},{"name":"Kāla","start":"19:48","end":"21:15","startHours":19.792099800238496,"endHours":21.254122290406954,"quality":"inauspicious"},{"name":"Śubha","start":"21:15","end":"22:43","startHours":21.254122290406954,"endHours":22.716144780575412,"quality":"auspicious"},{"name":"Roga","start":"22:43","end":"00:11","startHours":22.716144780575412,"endHours":24.17816727074387,"quality":"inauspicious"},{"name":"Udveg","start":"00:11","end":"01:38","startHours":24.17816727074387,"endHours":25.640189760912328,"quality":"inauspicious"},{"name":"Chala","start":"01:38","end":"03:06","startHours":25.640189760912328,"endHours":27.102212251080786,"quality":"neutral"},{"name":"Labha","start":"03:06","end":"04:34","startHours":27.102212251080786,"endHours":28.564234741249244,"quality":"auspicious"},{"name":"Amṛta","start":"04:34","end":"06:02","startHours":28.564234741249244,"endHours":30.026257231417702,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:02","end":"07:02","startHours":6.0262572314177,"endHours":7.0262572314177,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:02","end":"08:02","startHours":7.0262572314177,"endHours":8.0262572314177,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:02","end":"09:02","startHours":8.0262572314177,"endHours":9.0262572314177,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:02","end":"10:02","startHours":9.0262572314177,"endHours":10.0262572314177,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:02","end":"11:02","startHours":10.0262572314177,"endHours":11.0262572314177,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:02","end":"12:02","startHours":11.0262572314177,"endHours":12.0262572314177,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:02","end":"13:02","startHours":12.0262572314177,"endHours":13.0262572314177,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:02","end":"14:02","startHours":13.0262572314177,"endHours":14.0262572314177,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:02","end":"15:02","startHours":14.0262572314177,"endHours":15.0262572314177,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:02","end":"16:02","startHours":15.0262572314177,"endHours":16.026257231417702,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:02","end":"17:02","startHours":16.026257231417702,"endHours":17.026257231417702,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:02","end":"18:02","startHours":17.026257231417702,"endHours":18.026257231417702,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:02","end":"19:02","startHours":18.026257231417702,"endHours":19.026257231417702,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:02","end":"20:02","startHours":19.026257231417702,"endHours":20.026257231417702,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:02","end":"21:02","startHours":20.026257231417702,"endHours":21.026257231417702,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:02","end":"22:02","startHours":21.026257231417702,"endHours":22.026257231417702,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:02","end":"23:02","startHours":22.026257231417702,"endHours":23.026257231417702,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:02","end":"00:02","startHours":23.026257231417702,"endHours":24.026257231417702,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:02","end":"01:02","startHours":24.026257231417702,"endHours":25.026257231417702,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:02","end":"02:02","startHours":25.026257231417702,"endHours":26.026257231417702,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:02","end":"03:02","startHours":26.026257231417702,"endHours":27.026257231417702,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:02","end":"04:02","startHours":27.026257231417702,"endHours":28.026257231417702,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:02","end":"05:02","startHours":28.026257231417702,"endHours":29.026257231417702,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:02","end":"06:02","startHours":29.026257231417702,"endHours":30.026257231417702,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","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":"South (Dakṣiṇa)","chandraVasa":"West","rahuVasa":"North-West","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":2.267848293419291,"eotMinutes":6.239563755367786,"ayanamsa":23.9887}},"calendars":{"vikram_samvat":2066,"vikram_samvatsara":"Śubhakṛt","saka_samvat":1931,"saka_samvatsara":"Virodhi","bengali_samvat":1416,"malayalam_era":1185,"nanakshahi_year":540,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Caturdaśī · Vikram 2066 Śubhakṛt · Śaka 1931 Virodhi"},"festivals":[{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi_ingress":"Kanyā"},"precedence":4},{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":[]},"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 September 17, 2009 CE · Ṛṣikeśa · Vidhyamitra","description":"September 17, 2009 CE for Ṛṣikeśa: Kṛṣṇa Caturdaśī, sūryodaya 06:02, sūryāsta 18:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2009-09-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2009-09-17","sa":"https://sa.vidhyamitra.com/city/rishikesh/2009-09-17","hi":"https://hi.vidhyamitra.com/city/rishikesh/2009-09-17","x-default":"https://vidhyamitra.com/city/rishikesh/2009-09-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T17:52:27.324Z","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":"2026-05-31T17:52:27.324Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T17:52:27.324Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}