{"id":"vidhyamitra:city-day:rishikesh:1955-09-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1955-09-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1955-09-12","date_display":"September 12, 1955 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":1955,"month":9,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2435362.770833,"kali_year":5057,"ahargana":1846897.2708,"sun":{"sidereal_longitude":144.6608,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":91.3438,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":306.683,"elapsed_within_tithi_degrees":6.683},"nakshatra":{"number":7,"name":"Punarvasu","pada":4,"moon_longitude":91.3438,"elapsed_within_degrees":11.3438},"yoga":{"number":18,"name":"Varīyān","sum_longitude":236.0045},"karana":{"half_tithi_index":51,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1955,"month":9,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2435362.770833,"ahargana":1846897.2708,"kali_year":5057,"ayanamsa_lahiri":23.2341,"grahas":{"sun":{"sidereal_longitude":145.27269,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":90.90309000000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false,"latitude":-2.1696},"mars":{"sidereal_longitude":137.33609,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":171.54169000000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":116.12589000000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":148.81759,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":203.92749000000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":242.4947,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":62.4947,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":1955,"month":9,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2435362.770833,"kali_year":5057,"ahargana":1846897.2708,"sun":{"sidereal_longitude":144.6608,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":91.3438,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":306.683,"elapsed_within_tithi_degrees":6.683},"nakshatra":{"number":7,"name":"Punarvasu","pada":4,"moon_longitude":91.3438,"elapsed_within_degrees":11.3438},"yoga":{"number":18,"name":"Varīyān","sum_longitude":236.0045},"karana":{"half_tithi_index":51,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.17,"elongation":53.317},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.17,"opposition_distance":126.683}},"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":"05:58","sunsetLocal":"18:27","solarNoonLocal":"12:13","dayLengthHours":12.480949157909398,"dayLengthDisplay":"12 Hours 28 Mins 51 Secs","nightLengthDisplay":"11 Hours 31 Mins 09 Secs","moonriseLocal":"01:40","moonsetLocal":"15:30","rahuKala":{"name":"Rāhu Kāla","start":"07:32","end":"09:05","startHours":7.528745473317554,"endHours":9.088864118056229,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:39","end":"12:13","startHours":10.648982762794903,"endHours":12.209101407533577,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:46","end":"15:20","startHours":13.769220052272253,"endHours":15.329338697010927,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:18","startHours":8.880848298757739,"endHours":9.296879937354719,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:29","end":"06:49","startHours":6.488666376825104,"endHours":6.821491687702688,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:48","end":"12:38","startHours":11.793069768936597,"endHours":12.625133046130557,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:18","end":"05:08","startHours":4.304500274190959,"endHours":5.136563551384919,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:56","end":"05:58","startHours":4.928547732086429,"endHours":5.968626828578879,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:17","end":"15:07","startHours":14.289259600518477,"endHours":15.121322877712437,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:15","end":"18:39","startHours":18.249575986488278,"endHours":18.649575986488276,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:27","end":"18:58","startHours":18.449575986488277,"endHours":18.9696155347345,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:12","end":"19:57","startHours":18.199575986488277,"endHours":19.949575986488277,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:48","end":"00:38","startHours":23.793069768936597,"endHours":24.625133046130557,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:58","end":"07:32","startHours":5.968626828578879,"endHours":7.528745473317554,"quality":"auspicious"},{"name":"Kāla","start":"07:32","end":"09:05","startHours":7.528745473317554,"endHours":9.088864118056229,"quality":"inauspicious"},{"name":"Śubha","start":"09:05","end":"10:39","startHours":9.088864118056229,"endHours":10.648982762794903,"quality":"auspicious"},{"name":"Roga","start":"10:39","end":"12:13","startHours":10.648982762794903,"endHours":12.209101407533577,"quality":"inauspicious"},{"name":"Udveg","start":"12:13","end":"13:46","startHours":12.209101407533577,"endHours":13.769220052272253,"quality":"inauspicious"},{"name":"Chala","start":"13:46","end":"15:20","startHours":13.769220052272253,"endHours":15.329338697010927,"quality":"neutral"},{"name":"Labha","start":"15:20","end":"16:53","startHours":15.329338697010927,"endHours":16.889457341749605,"quality":"auspicious"},{"name":"Amṛta","start":"16:53","end":"18:27","startHours":16.889457341749605,"endHours":18.449575986488277,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:27","end":"19:53","startHours":18.449575986488277,"endHours":19.8894573417496,"quality":"neutral"},{"name":"Labha","start":"19:53","end":"21:20","startHours":19.8894573417496,"endHours":21.32933869701093,"quality":"auspicious"},{"name":"Amṛta","start":"21:20","end":"22:46","startHours":21.32933869701093,"endHours":22.769220052272253,"quality":"auspicious"},{"name":"Kāla","start":"22:46","end":"00:13","startHours":22.769220052272253,"endHours":24.209101407533577,"quality":"inauspicious"},{"name":"Śubha","start":"00:13","end":"01:39","startHours":24.209101407533577,"endHours":25.6489827627949,"quality":"auspicious"},{"name":"Roga","start":"01:39","end":"03:05","startHours":25.6489827627949,"endHours":27.08886411805623,"quality":"inauspicious"},{"name":"Udveg","start":"03:05","end":"04:32","startHours":27.08886411805623,"endHours":28.528745473317553,"quality":"inauspicious"},{"name":"Chala","start":"04:32","end":"05:58","startHours":28.528745473317553,"endHours":29.968626828578877,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:58","end":"06:58","startHours":5.968626828578879,"endHours":6.968626828578879,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:58","end":"07:58","startHours":6.968626828578879,"endHours":7.968626828578879,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:58","end":"08:58","startHours":7.968626828578879,"endHours":8.968626828578879,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:58","end":"09:58","startHours":8.968626828578879,"endHours":9.968626828578879,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:58","end":"10:58","startHours":9.968626828578879,"endHours":10.968626828578879,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:58","end":"11:58","startHours":10.968626828578879,"endHours":11.968626828578879,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:58","end":"12:58","startHours":11.968626828578879,"endHours":12.968626828578879,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:58","end":"13:58","startHours":12.968626828578879,"endHours":13.968626828578879,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:58","end":"14:58","startHours":13.968626828578879,"endHours":14.968626828578879,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:58","end":"15:58","startHours":14.968626828578879,"endHours":15.968626828578879,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:58","end":"16:58","startHours":15.968626828578879,"endHours":16.968626828578877,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:58","end":"17:58","startHours":16.968626828578877,"endHours":17.968626828578877,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:58","end":"18:58","startHours":17.968626828578877,"endHours":18.968626828578877,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:58","end":"19:58","startHours":18.968626828578877,"endHours":19.968626828578877,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:58","end":"20:58","startHours":19.968626828578877,"endHours":20.968626828578877,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:58","end":"21:58","startHours":20.968626828578877,"endHours":21.968626828578877,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:58","end":"22:58","startHours":21.968626828578877,"endHours":22.968626828578877,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:58","end":"23:58","startHours":22.968626828578877,"endHours":23.968626828578877,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:58","end":"00:58","startHours":23.968626828578877,"endHours":24.968626828578877,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:58","end":"01:58","startHours":24.968626828578877,"endHours":25.968626828578877,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:58","end":"02:58","startHours":25.968626828578877,"endHours":26.968626828578877,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:58","end":"03:58","startHours":26.968626828578877,"endHours":27.968626828578877,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:58","end":"04:58","startHours":27.968626828578877,"endHours":28.968626828578877,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:58","end":"05:58","startHours":28.968626828578877,"endHours":29.968626828578877,"planetary_lord":"Venus"}],"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","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Chatra","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":4.545394404061881,"eotMinutes":4.383515547985428,"ayanamsa":23.2341}},"calendars":{"vikram_samvat":2012,"vikram_samvatsara":"Kīlaka","saka_samvat":1877,"saka_samvatsara":"Manmatha","bengali_samvat":1362,"malayalam_era":1131,"nanakshahi_year":486,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada (Adhika) Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":true,"lunar_month_purnimanta_is_adhika":true,"lunar_month_amanta_is_adhika":true,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada (Adhika) Kṛṣṇa Ekādaśī · Vikram 2012 Kīlaka · Śaka 1877 Manmatha"},"festivals":[{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 Punarvasu","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 12, 1955 CE · Ṛṣikeśa · Vidhyamitra","description":"September 12, 1955 CE for Ṛṣikeśa: Kṛṣṇa Ekādaśī, sūryodaya 05:58, sūryāsta 18:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1955-09-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1955-09-12","sa":"https://sa.vidhyamitra.com/city/rishikesh/1955-09-12","hi":"https://hi.vidhyamitra.com/city/rishikesh/1955-09-12","x-default":"https://vidhyamitra.com/city/rishikesh/1955-09-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T11:04:29.489Z","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":"2026-06-02T11:04:29.489Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T11:04:29.489Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}