{"id":"vidhyamitra:city-day:rishikesh:1951-09-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1951-09-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1951-09-01","date_display":"September 1, 1951 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":1951,"month":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2433890.770833,"kali_year":5053,"ahargana":1845425.2708,"sun":{"sidereal_longitude":134.0569,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":127.8587,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":353.8018,"elapsed_within_tithi_degrees":5.8018},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":127.8587,"elapsed_within_degrees":7.8587},"yoga":{"number":20,"name":"Śiva","sum_longitude":261.9155},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"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":1951,"month":9,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2433890.770833,"ahargana":1845425.2708,"kali_year":5053,"ayanamsa_lahiri":23.1778,"grahas":{"sun":{"sidereal_longitude":134.62613199999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":128.884932,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false,"latitude":0.983},"mars":{"sidereal_longitude":106.24773200000004,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":134.07273199999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":350.407832,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":139.36123199999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":true},"saturn":{"sidereal_longitude":159.10133199999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":320.4883,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":140.4883,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":1951,"month":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2433890.770833,"kali_year":5053,"ahargana":1845425.2708,"sun":{"sidereal_longitude":134.0569,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":127.8587,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":353.8018,"elapsed_within_tithi_degrees":5.8018},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":127.8587,"elapsed_within_degrees":7.8587},"yoga":{"number":20,"name":"Śiva","sum_longitude":261.9155},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.983,"elongation":6.198},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.983,"opposition_distance":173.802}},"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":"05:52","sunsetLocal":"18:41","solarNoonLocal":"12:16","dayLengthHours":12.803990128118414,"dayLengthDisplay":"12 Hours 48 Mins 14 Secs","nightLengthDisplay":"11 Hours 11 Mins 46 Secs","moonriseLocal":"05:25","moonsetLocal":"18:21","rahuKala":{"name":"Rāhu Kāla","start":"09:04","end":"10:40","startHours":9.073228837785841,"endHours":10.673727603800643,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:52","end":"15:29","startHours":13.874725135830246,"endHours":15.475223901845048,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:52","end":"07:28","startHours":5.8722313057562365,"endHours":7.472730071771038,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:17","startHours":8.8598290023172,"endHours":9.28662867325448,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:24","end":"06:45","startHours":6.405730894427837,"endHours":6.747170631177661,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:42","startHours":11.847426698878165,"endHours":12.701026040752724,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:10","end":"05:01","startHours":4.165032622007114,"endHours":5.018631963881676,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:48","end":"05:52","startHours":4.805232128413035,"endHours":5.8722313057562365,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:24","end":"15:16","startHours":14.408224724501846,"endHours":15.261824066376407,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:29","end":"18:53","startHours":18.476221433874652,"endHours":18.87622143387465,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:41","end":"19:13","startHours":18.67622143387465,"endHours":19.20972102254625,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:26","end":"20:11","startHours":18.42622143387465,"endHours":20.17622143387465,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:42","startHours":23.847426698878163,"endHours":24.701026040752726,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:52","end":"07:28","startHours":5.8722313057562365,"endHours":7.472730071771038,"quality":"inauspicious"},{"name":"Śubha","start":"07:28","end":"09:04","startHours":7.472730071771038,"endHours":9.073228837785841,"quality":"auspicious"},{"name":"Roga","start":"09:04","end":"10:40","startHours":9.073228837785841,"endHours":10.673727603800643,"quality":"inauspicious"},{"name":"Udveg","start":"10:40","end":"12:16","startHours":10.673727603800643,"endHours":12.274226369815445,"quality":"inauspicious"},{"name":"Chala","start":"12:16","end":"13:52","startHours":12.274226369815445,"endHours":13.874725135830246,"quality":"neutral"},{"name":"Labha","start":"13:52","end":"15:29","startHours":13.874725135830246,"endHours":15.475223901845048,"quality":"auspicious"},{"name":"Amṛta","start":"15:29","end":"17:05","startHours":15.475223901845048,"endHours":17.07572266785985,"quality":"auspicious"},{"name":"Kāla","start":"17:05","end":"18:41","startHours":17.07572266785985,"endHours":18.67622143387465,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:41","end":"20:05","startHours":18.67622143387465,"endHours":20.07572266785985,"quality":"auspicious"},{"name":"Amṛta","start":"20:05","end":"21:29","startHours":20.07572266785985,"endHours":21.475223901845048,"quality":"auspicious"},{"name":"Kāla","start":"21:29","end":"22:52","startHours":21.475223901845048,"endHours":22.874725135830246,"quality":"inauspicious"},{"name":"Śubha","start":"22:52","end":"00:16","startHours":22.874725135830246,"endHours":24.274226369815445,"quality":"auspicious"},{"name":"Roga","start":"00:16","end":"01:40","startHours":24.274226369815445,"endHours":25.673727603800643,"quality":"inauspicious"},{"name":"Udveg","start":"01:40","end":"03:04","startHours":25.673727603800643,"endHours":27.07322883778584,"quality":"inauspicious"},{"name":"Chala","start":"03:04","end":"04:28","startHours":27.07322883778584,"endHours":28.47273007177104,"quality":"neutral"},{"name":"Labha","start":"04:28","end":"05:52","startHours":28.47273007177104,"endHours":29.872231305756237,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:52","end":"06:52","startHours":5.8722313057562365,"endHours":6.8722313057562365,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:52","end":"07:52","startHours":6.8722313057562365,"endHours":7.8722313057562365,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:52","end":"08:52","startHours":7.8722313057562365,"endHours":8.872231305756237,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:52","end":"09:52","startHours":8.872231305756237,"endHours":9.872231305756237,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:52","end":"10:52","startHours":9.872231305756237,"endHours":10.872231305756237,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:52","end":"11:52","startHours":10.872231305756237,"endHours":11.872231305756237,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:52","end":"12:52","startHours":11.872231305756237,"endHours":12.872231305756237,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:52","end":"13:52","startHours":12.872231305756237,"endHours":13.872231305756237,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:52","end":"14:52","startHours":13.872231305756237,"endHours":14.872231305756237,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:52","end":"15:52","startHours":14.872231305756237,"endHours":15.872231305756237,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:52","end":"16:52","startHours":15.872231305756237,"endHours":16.872231305756237,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:52","end":"17:52","startHours":16.872231305756237,"endHours":17.872231305756237,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:52","end":"18:52","startHours":17.872231305756237,"endHours":18.872231305756237,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:52","end":"19:52","startHours":18.872231305756237,"endHours":19.872231305756237,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:52","end":"20:52","startHours":19.872231305756237,"endHours":20.872231305756237,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:52","end":"21:52","startHours":20.872231305756237,"endHours":21.872231305756237,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:52","end":"22:52","startHours":21.872231305756237,"endHours":22.872231305756237,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:52","end":"23:52","startHours":22.872231305756237,"endHours":23.872231305756237,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:52","end":"00:52","startHours":23.872231305756237,"endHours":24.872231305756237,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:52","end":"01:52","startHours":24.872231305756237,"endHours":25.872231305756237,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:52","end":"02:52","startHours":25.872231305756237,"endHours":26.872231305756237,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:52","end":"03:52","startHours":26.872231305756237,"endHours":27.872231305756237,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:52","end":"04:52","startHours":27.872231305756237,"endHours":28.872231305756237,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:52","end":"05:52","startHours":28.872231305756237,"endHours":29.872231305756237,"planetary_lord":"Mercury"}],"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":"East (Pūrva)","chandraVasa":"West","rahuVasa":"East","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":8.641662399951349,"eotMinutes":0.47601781107335894,"ayanamsa":23.1778}},"calendars":{"vikram_samvat":2008,"vikram_samvatsara":"Krodhi","saka_samvat":1873,"saka_samvatsara":"Khara","bengali_samvat":1358,"malayalam_era":1127,"nanakshahi_year":482,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Śrāvaṇa","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 Kṛṣṇa Amāvasyā · Vikram 2008 Krodhi · Śaka 1873 Khara"},"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":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","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 1, 1951 CE · Ṛṣikeśa · Vidhyamitra","description":"September 1, 1951 CE for Ṛṣikeśa: Kṛṣṇa Amāvasyā, sūryodaya 05:52, sūryāsta 18:41.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1951-09-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1951-09-01","sa":"https://sa.vidhyamitra.com/city/rishikesh/1951-09-01","hi":"https://hi.vidhyamitra.com/city/rishikesh/1951-09-01","x-default":"https://vidhyamitra.com/city/rishikesh/1951-09-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T02:16:54.531Z","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":"2026-05-31T02:16:54.531Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T02:16:54.531Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}