{"id":"vidhyamitra:city-day:rishikesh:2010-09-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2010-09-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2010-09-16","date_display":"September 16, 2010 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":2010,"month":9,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455455.770833,"kali_year":5112,"ahargana":1866990.2708,"sun":{"sidereal_longitude":148.3218,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":244.8689,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":96.5471,"elapsed_within_tithi_degrees":0.5471},"nakshatra":{"number":19,"name":"Mūla","pada":2,"moon_longitude":244.8689,"elapsed_within_degrees":4.8689},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":33.1908},"karana":{"half_tithi_index":16,"name":"Bālava"},"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":2010,"month":9,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455455.770833,"ahargana":1866990.2708,"kali_year":5112,"ayanamsa_lahiri":24.0026,"grahas":{"sun":{"sidereal_longitude":149.07678999999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":248.23199,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false,"latitude":-1.0114},"mars":{"sidereal_longitude":186.55339000000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":132.02069,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":335.21408999999994,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":191.15659000000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":161.64528999999993,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":257.8709,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":77.8709,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":2010,"month":9,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455455.770833,"kali_year":5112,"ahargana":1866990.2708,"sun":{"sidereal_longitude":148.3218,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":244.8689,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":96.5471,"elapsed_within_tithi_degrees":0.5471},"nakshatra":{"number":19,"name":"Mūla","pada":2,"moon_longitude":244.8689,"elapsed_within_degrees":4.8689},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":33.1908},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.011,"elongation":96.547},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.011,"opposition_distance":83.453}},"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":"06:01","sunsetLocal":"18:21","solarNoonLocal":"12:11","dayLengthHours":12.340979299417363,"dayLengthDisplay":"12 Hours 20 Mins 28 Secs","nightLengthDisplay":"11 Hours 39 Mins 32 Secs","moonriseLocal":"13:43","moonsetLocal":"23:53","rahuKala":{"name":"Rāhu Kāla","start":"13:44","end":"15:16","startHours":13.72697722858169,"endHours":15.26959964100886,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:01","end":"07:33","startHours":6.0138651664458385,"endHours":7.556487578873009,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:06","end":"10:39","startHours":9.099109991300178,"endHours":10.64173240372735,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:18","startHours":8.893427002976557,"endHours":9.304792979623802,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:32","end":"06:51","startHours":6.528072637254895,"endHours":6.857165418572691,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:36","startHours":11.772988839507276,"endHours":12.595720792801766,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:22","end":"05:11","startHours":4.3684012598568565,"endHours":5.191133213151348,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:59","end":"06:01","startHours":4.985450224827725,"endHours":6.0138651664458385,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:14","end":"15:04","startHours":14.241184699390747,"endHours":15.063916652685238,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:09","end":"18:33","startHours":18.154844465863203,"endHours":18.5548444658632,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:21","end":"18:52","startHours":18.354844465863202,"endHours":18.86905193667226,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:06","end":"19:51","startHours":18.104844465863202,"endHours":19.854844465863202,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:36","startHours":23.772988839507274,"endHours":24.595720792801767,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:01","end":"07:33","startHours":6.0138651664458385,"endHours":7.556487578873009,"quality":"auspicious"},{"name":"Roga","start":"07:33","end":"09:06","startHours":7.556487578873009,"endHours":9.099109991300178,"quality":"inauspicious"},{"name":"Udveg","start":"09:06","end":"10:39","startHours":9.099109991300178,"endHours":10.64173240372735,"quality":"inauspicious"},{"name":"Chala","start":"10:39","end":"12:11","startHours":10.64173240372735,"endHours":12.18435481615452,"quality":"neutral"},{"name":"Labha","start":"12:11","end":"13:44","startHours":12.18435481615452,"endHours":13.72697722858169,"quality":"auspicious"},{"name":"Amṛta","start":"13:44","end":"15:16","startHours":13.72697722858169,"endHours":15.26959964100886,"quality":"auspicious"},{"name":"Kāla","start":"15:16","end":"16:49","startHours":15.26959964100886,"endHours":16.81222205343603,"quality":"inauspicious"},{"name":"Śubha","start":"16:49","end":"18:21","startHours":16.81222205343603,"endHours":18.354844465863202,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:21","end":"19:49","startHours":18.354844465863202,"endHours":19.81222205343603,"quality":"auspicious"},{"name":"Kāla","start":"19:49","end":"21:16","startHours":19.81222205343603,"endHours":21.26959964100886,"quality":"inauspicious"},{"name":"Śubha","start":"21:16","end":"22:44","startHours":21.26959964100886,"endHours":22.726977228581692,"quality":"auspicious"},{"name":"Roga","start":"22:44","end":"00:11","startHours":22.726977228581692,"endHours":24.18435481615452,"quality":"inauspicious"},{"name":"Udveg","start":"00:11","end":"01:39","startHours":24.18435481615452,"endHours":25.64173240372735,"quality":"inauspicious"},{"name":"Chala","start":"01:39","end":"03:06","startHours":25.64173240372735,"endHours":27.099109991300182,"quality":"neutral"},{"name":"Labha","start":"03:06","end":"04:33","startHours":27.099109991300182,"endHours":28.55648757887301,"quality":"auspicious"},{"name":"Amṛta","start":"04:33","end":"06:01","startHours":28.55648757887301,"endHours":30.01386516644584,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:01","end":"07:01","startHours":6.0138651664458385,"endHours":7.0138651664458385,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:01","end":"08:01","startHours":7.0138651664458385,"endHours":8.01386516644584,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:01","end":"09:01","startHours":8.01386516644584,"endHours":9.01386516644584,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:01","end":"10:01","startHours":9.01386516644584,"endHours":10.01386516644584,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:01","end":"11:01","startHours":10.01386516644584,"endHours":11.01386516644584,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:01","end":"12:01","startHours":11.01386516644584,"endHours":12.01386516644584,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:01","end":"13:01","startHours":12.01386516644584,"endHours":13.01386516644584,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:01","end":"14:01","startHours":13.01386516644584,"endHours":14.01386516644584,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:01","end":"15:01","startHours":14.01386516644584,"endHours":15.01386516644584,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:01","end":"16:01","startHours":15.01386516644584,"endHours":16.01386516644584,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:01","end":"17:01","startHours":16.01386516644584,"endHours":17.01386516644584,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:01","end":"18:01","startHours":17.01386516644584,"endHours":18.01386516644584,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:01","end":"19:01","startHours":18.01386516644584,"endHours":19.01386516644584,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:01","end":"20:01","startHours":19.01386516644584,"endHours":20.01386516644584,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:01","end":"21:01","startHours":20.01386516644584,"endHours":21.01386516644584,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:01","end":"22:01","startHours":21.01386516644584,"endHours":22.01386516644584,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:01","end":"23:01","startHours":22.01386516644584,"endHours":23.01386516644584,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:01","end":"00:01","startHours":23.01386516644584,"endHours":24.01386516644584,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:01","end":"01:01","startHours":24.01386516644584,"endHours":25.01386516644584,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:01","end":"02:01","startHours":25.01386516644584,"endHours":26.01386516644584,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:01","end":"03:01","startHours":26.01386516644584,"endHours":27.01386516644584,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:01","end":"04:01","startHours":27.01386516644584,"endHours":28.01386516644584,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:01","end":"05:01","startHours":28.01386516644584,"endHours":29.01386516644584,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:01","end":"06:01","startHours":29.01386516644584,"endHours":30.01386516644584,"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","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":2.7469152019577243,"eotMinutes":5.868311030728706,"ayanamsa":24.0026}},"calendars":{"vikram_samvat":2067,"vikram_samvatsara":"Śobhana","saka_samvat":1932,"saka_samvatsara":"Vikṛti","bengali_samvat":1417,"malayalam_era":1186,"nanakshahi_year":541,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Navamī · Vikram 2067 Śobhana · Śaka 1932 Vikṛti"},"festivals":[],"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":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","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 September 16, 2010 CE · Ṛṣikeśa · Vidhyamitra","description":"September 16, 2010 CE for Ṛṣikeśa: Śukla Navamī, sūryodaya 06:01, sūryāsta 18:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2010-09-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2010-09-16","sa":"https://sa.vidhyamitra.com/city/rishikesh/2010-09-16","hi":"https://hi.vidhyamitra.com/city/rishikesh/2010-09-16","x-default":"https://vidhyamitra.com/city/rishikesh/2010-09-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T09:04:34.650Z","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":"2026-06-02T09:04:34.650Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T09:04:34.650Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}