{"id":"vidhyamitra:city-day:rishikesh:2009-09-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2009-09-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2009-09-12","date_display":"September 12, 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":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455086.770833,"kali_year":5111,"ahargana":1866621.2708,"sun":{"sidereal_longitude":144.6871,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":56.2053,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":271.5182,"elapsed_within_tithi_degrees":7.5182},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":56.2053,"elapsed_within_degrees":2.872},"yoga":{"number":16,"name":"Siddhi","sum_longitude":200.8924},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455086.770833,"ahargana":1866621.2708,"kali_year":5111,"ayanamsa_lahiri":23.9885,"grahas":{"sun":{"sidereal_longitude":145.430589,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":54.722789000000034,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false,"latitude":2.9634},"mars":{"sidereal_longitude":76.61078900000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":161.081589,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":295.05818899999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":115.54528900000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":150.05088899999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":277.4223,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":97.4223,"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":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455086.770833,"kali_year":5111,"ahargana":1866621.2708,"sun":{"sidereal_longitude":144.6871,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":56.2053,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":271.5182,"elapsed_within_tithi_degrees":7.5182},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":56.2053,"elapsed_within_degrees":2.872},"yoga":{"number":16,"name":"Siddhi","sum_longitude":200.8924},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.963,"elongation":88.482},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.963,"opposition_distance":91.518}},"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":"05:59","sunsetLocal":"18:26","solarNoonLocal":"12:13","dayLengthHours":12.45308322870296,"dayLengthDisplay":"12 Hours 27 Mins 11 Secs","nightLengthDisplay":"11 Hours 32 Mins 49 Secs","moonriseLocal":"23:10","moonsetLocal":"13:10","rahuKala":{"name":"Rāhu Kāla","start":"09:06","end":"10:39","startHours":9.095830600357836,"endHours":10.652466003945706,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:46","end":"15:19","startHours":13.765736811121446,"endHours":15.322372214709317,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:59","end":"07:32","startHours":5.982559793182096,"endHours":7.539195196769966,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:18","startHours":8.888279213212787,"endHours":9.303381987502885,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:30","end":"06:50","startHours":6.5014382610447194,"endHours":6.833520480476798,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:48","end":"12:37","startHours":11.79399863324348,"endHours":12.624204181823675,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:19","end":"05:09","startHours":4.322148696021701,"endHours":5.152354244601899,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:57","end":"05:59","startHours":4.94480285745685,"endHours":5.982559793182096,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:17","end":"15:07","startHours":14.28461527898407,"endHours":15.114820827564268,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:14","end":"18:38","startHours":18.235643021885057,"endHours":18.635643021885056,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:26","end":"18:57","startHours":18.435643021885056,"endHours":18.95452148974768,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:11","end":"19:56","startHours":18.185643021885056,"endHours":19.935643021885056,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:48","end":"00:37","startHours":23.79399863324348,"endHours":24.624204181823675,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:59","end":"07:32","startHours":5.982559793182096,"endHours":7.539195196769966,"quality":"inauspicious"},{"name":"Śubha","start":"07:32","end":"09:06","startHours":7.539195196769966,"endHours":9.095830600357836,"quality":"auspicious"},{"name":"Roga","start":"09:06","end":"10:39","startHours":9.095830600357836,"endHours":10.652466003945706,"quality":"inauspicious"},{"name":"Udveg","start":"10:39","end":"12:13","startHours":10.652466003945706,"endHours":12.209101407533577,"quality":"inauspicious"},{"name":"Chala","start":"12:13","end":"13:46","startHours":12.209101407533577,"endHours":13.765736811121446,"quality":"neutral"},{"name":"Labha","start":"13:46","end":"15:19","startHours":13.765736811121446,"endHours":15.322372214709317,"quality":"auspicious"},{"name":"Amṛta","start":"15:19","end":"16:53","startHours":15.322372214709317,"endHours":16.879007618297187,"quality":"auspicious"},{"name":"Kāla","start":"16:53","end":"18:26","startHours":16.879007618297187,"endHours":18.435643021885056,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:26","end":"19:53","startHours":18.435643021885056,"endHours":19.879007618297187,"quality":"auspicious"},{"name":"Amṛta","start":"19:53","end":"21:19","startHours":19.879007618297187,"endHours":21.322372214709315,"quality":"auspicious"},{"name":"Kāla","start":"21:19","end":"22:46","startHours":21.322372214709315,"endHours":22.765736811121446,"quality":"inauspicious"},{"name":"Śubha","start":"22:46","end":"00:13","startHours":22.765736811121446,"endHours":24.209101407533577,"quality":"auspicious"},{"name":"Roga","start":"00:13","end":"01:39","startHours":24.209101407533577,"endHours":25.652466003945705,"quality":"inauspicious"},{"name":"Udveg","start":"01:39","end":"03:06","startHours":25.652466003945705,"endHours":27.095830600357836,"quality":"inauspicious"},{"name":"Chala","start":"03:06","end":"04:32","startHours":27.095830600357836,"endHours":28.539195196769967,"quality":"neutral"},{"name":"Labha","start":"04:32","end":"05:59","startHours":28.539195196769967,"endHours":29.982559793182098,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:59","end":"06:59","startHours":5.982559793182096,"endHours":6.982559793182096,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:59","end":"07:59","startHours":6.982559793182096,"endHours":7.982559793182096,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:59","end":"08:59","startHours":7.982559793182096,"endHours":8.982559793182096,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:59","end":"09:59","startHours":8.982559793182096,"endHours":9.982559793182096,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:59","end":"10:59","startHours":9.982559793182096,"endHours":10.982559793182096,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:59","end":"11:59","startHours":10.982559793182096,"endHours":11.982559793182096,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:59","end":"12:59","startHours":11.982559793182096,"endHours":12.982559793182096,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:59","end":"13:59","startHours":12.982559793182096,"endHours":13.982559793182096,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:59","end":"14:59","startHours":13.982559793182096,"endHours":14.982559793182096,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:59","end":"15:59","startHours":14.982559793182096,"endHours":15.982559793182096,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:59","end":"16:59","startHours":15.982559793182096,"endHours":16.982559793182098,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:59","end":"17:59","startHours":16.982559793182098,"endHours":17.982559793182098,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:59","end":"18:59","startHours":17.982559793182098,"endHours":18.982559793182098,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:59","end":"19:59","startHours":18.982559793182098,"endHours":19.982559793182098,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:59","end":"20:59","startHours":19.982559793182098,"endHours":20.982559793182098,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:59","end":"21:59","startHours":20.982559793182098,"endHours":21.982559793182098,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:59","end":"22:59","startHours":21.982559793182098,"endHours":22.982559793182098,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:59","end":"23:59","startHours":22.982559793182098,"endHours":23.982559793182098,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:59","end":"00:59","startHours":23.982559793182098,"endHours":24.982559793182098,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:59","end":"01:59","startHours":24.982559793182098,"endHours":25.982559793182098,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:59","end":"02:59","startHours":25.982559793182098,"endHours":26.982559793182098,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:59","end":"03:59","startHours":26.982559793182098,"endHours":27.982559793182098,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:59","end":"04:59","startHours":27.982559793182098,"endHours":28.982559793182098,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:59","end":"05:59","startHours":28.982559793182098,"endHours":29.982559793182098,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"East","anandadiYoga":{"name":"Ānanda","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":4.188221251025213,"eotMinutes":4.383515547985428,"ayanamsa":23.9885}},"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":"Siṃha (Āvaṇi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Aṣṭamī · Vikram 2066 Śubhakṛt · Śaka 1931 Virodhi"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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}]},"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 12, 2009 CE · Ṛṣikeśa · Vidhyamitra","description":"September 12, 2009 CE for Ṛṣikeśa: Kṛṣṇa Aṣṭamī, sūryodaya 05:59, sūryāsta 18:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2009-09-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2009-09-12","sa":"https://sa.vidhyamitra.com/city/rishikesh/2009-09-12","hi":"https://hi.vidhyamitra.com/city/rishikesh/2009-09-12","x-default":"https://vidhyamitra.com/city/rishikesh/2009-09-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T23:10:24.575Z","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":"2026-05-31T23:10:24.575Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T23:10:24.575Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}