{"id":"vidhyamitra:city-day:rishikesh:1940-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1940-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1940-02-01","date_display":"February 1, 1940 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":1940,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2429660.770833,"kali_year":5041,"ahargana":1841195.2708,"sun":{"sidereal_longitude":288.1733,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":200.6209,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":272.4476,"elapsed_within_tithi_degrees":8.4476},"nakshatra":{"number":16,"name":"Viśākhā","pada":1,"moon_longitude":200.6209,"elapsed_within_degrees":0.6209},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":128.7943},"karana":{"half_tithi_index":45,"name":"Kaulava"},"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":1940,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2429660.770833,"ahargana":1841195.2708,"kali_year":5041,"ayanamsa_lahiri":23.016,"grahas":{"sun":{"sidereal_longitude":288.01704900000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":203.290349,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false,"latitude":1.2397},"mars":{"sidereal_longitude":356.891249,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":289.06494900000007,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":343.63394900000003,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":324.271849,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":2.907648999999992,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":184.6141,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":4.6141,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":1940,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2429660.770833,"kali_year":5041,"ahargana":1841195.2708,"sun":{"sidereal_longitude":288.1733,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":200.6209,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":272.4476,"elapsed_within_tithi_degrees":8.4476},"nakshatra":{"number":16,"name":"Viśākhā","pada":1,"moon_longitude":200.6209,"elapsed_within_degrees":0.6209},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":128.7943},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.24,"elongation":87.552},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.24,"opposition_distance":92.448}},"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":"07:09","sunsetLocal":"17:53","solarNoonLocal":"12:31","dayLengthHours":10.73675245848011,"dayLengthDisplay":"10 Hours 44 Mins 12 Secs","nightLengthDisplay":"13 Hours 15 Mins 48 Secs","moonriseLocal":"01:29","moonsetLocal":"12:14","rahuKala":{"name":"Rāhu Kāla","start":"13:51","end":"15:12","startHours":13.852409859266608,"endHours":15.194503916576622,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:09","end":"08:29","startHours":7.14193957271654,"endHours":8.484033630026554,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:50","end":"11:10","startHours":9.826127687336568,"endHours":11.16822174464658,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:39","end":"10:00","startHours":9.647181813028565,"endHours":10.005073561644569,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:35","end":"07:53","startHours":7.589304258486544,"endHours":7.8756176573793475,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:52","startHours":12.15242405334059,"endHours":12.868207550572597,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:43","end":"06:26","startHours":5.710372578252525,"endHours":6.426156075484532,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:15","end":"07:09","startHours":6.2472102011765305,"endHours":7.14193957271654,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:18","end":"15:01","startHours":14.299774545036612,"endHours":15.01555804226862,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:41","end":"18:05","startHours":17.67869203119665,"endHours":18.07869203119665,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:53","end":"18:20","startHours":17.87869203119665,"endHours":18.326056716966654,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:38","end":"19:23","startHours":17.62869203119665,"endHours":19.37869203119665,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:52","startHours":24.15242405334059,"endHours":24.8682075505726,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:09","end":"08:29","startHours":7.14193957271654,"endHours":8.484033630026554,"quality":"auspicious"},{"name":"Roga","start":"08:29","end":"09:50","startHours":8.484033630026554,"endHours":9.826127687336568,"quality":"inauspicious"},{"name":"Udveg","start":"09:50","end":"11:10","startHours":9.826127687336568,"endHours":11.16822174464658,"quality":"inauspicious"},{"name":"Chala","start":"11:10","end":"12:31","startHours":11.16822174464658,"endHours":12.510315801956594,"quality":"neutral"},{"name":"Labha","start":"12:31","end":"13:51","startHours":12.510315801956594,"endHours":13.852409859266608,"quality":"auspicious"},{"name":"Amṛta","start":"13:51","end":"15:12","startHours":13.852409859266608,"endHours":15.194503916576622,"quality":"auspicious"},{"name":"Kāla","start":"15:12","end":"16:32","startHours":15.194503916576622,"endHours":16.536597973886636,"quality":"inauspicious"},{"name":"Śubha","start":"16:32","end":"17:53","startHours":16.536597973886636,"endHours":17.87869203119665,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:53","end":"19:32","startHours":17.87869203119665,"endHours":19.536597973886636,"quality":"auspicious"},{"name":"Kāla","start":"19:32","end":"21:12","startHours":19.536597973886636,"endHours":21.194503916576622,"quality":"inauspicious"},{"name":"Śubha","start":"21:12","end":"22:51","startHours":21.194503916576622,"endHours":22.852409859266608,"quality":"auspicious"},{"name":"Roga","start":"22:51","end":"00:31","startHours":22.852409859266608,"endHours":24.510315801956594,"quality":"inauspicious"},{"name":"Udveg","start":"00:31","end":"02:10","startHours":24.510315801956594,"endHours":26.16822174464658,"quality":"inauspicious"},{"name":"Chala","start":"02:10","end":"03:50","startHours":26.16822174464658,"endHours":27.826127687336566,"quality":"neutral"},{"name":"Labha","start":"03:50","end":"05:29","startHours":27.826127687336566,"endHours":29.484033630026552,"quality":"auspicious"},{"name":"Amṛta","start":"05:29","end":"07:09","startHours":29.484033630026552,"endHours":31.141939572716538,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:09","end":"08:09","startHours":7.14193957271654,"endHours":8.14193957271654,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:09","end":"09:09","startHours":8.14193957271654,"endHours":9.14193957271654,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:09","end":"10:09","startHours":9.14193957271654,"endHours":10.14193957271654,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:09","end":"11:09","startHours":10.14193957271654,"endHours":11.14193957271654,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:09","end":"12:09","startHours":11.14193957271654,"endHours":12.14193957271654,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:09","end":"13:09","startHours":12.14193957271654,"endHours":13.14193957271654,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:09","end":"14:09","startHours":13.14193957271654,"endHours":14.14193957271654,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:09","end":"15:09","startHours":14.14193957271654,"endHours":15.14193957271654,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:09","end":"16:09","startHours":15.14193957271654,"endHours":16.141939572716538,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:09","end":"17:09","startHours":16.141939572716538,"endHours":17.141939572716538,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:09","end":"18:09","startHours":17.141939572716538,"endHours":18.141939572716538,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:09","end":"19:09","startHours":18.141939572716538,"endHours":19.141939572716538,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:09","end":"20:09","startHours":19.141939572716538,"endHours":20.141939572716538,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:09","end":"21:09","startHours":20.141939572716538,"endHours":21.141939572716538,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:09","end":"22:09","startHours":21.141939572716538,"endHours":22.141939572716538,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:09","end":"23:09","startHours":22.141939572716538,"endHours":23.141939572716538,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:09","end":"00:09","startHours":23.141939572716538,"endHours":24.141939572716538,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:09","end":"01:09","startHours":24.141939572716538,"endHours":25.141939572716538,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:09","end":"02:09","startHours":25.141939572716538,"endHours":26.141939572716538,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:09","end":"03:09","startHours":26.141939572716538,"endHours":27.141939572716538,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:09","end":"04:09","startHours":27.141939572716538,"endHours":28.141939572716538,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:09","end":"05:09","startHours":28.141939572716538,"endHours":29.141939572716538,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:09","end":"06:09","startHours":29.141939572716538,"endHours":30.141939572716538,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:09","end":"07:09","startHours":30.141939572716538,"endHours":31.141939572716538,"planetary_lord":"Moon"}],"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","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North","rahuVasa":"North-West","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-17.45892073875658,"eotMinutes":-13.689348117395623,"ayanamsa":23.016}},"calendars":{"vikram_samvat":1997,"vikram_samvatsara":"Vijaya","saka_samvat":1862,"saka_samvatsara":"Vikrama","bengali_samvat":1347,"malayalam_era":1116,"nanakshahi_year":471,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Aṣṭamī · Vikram 1997 Vijaya · Śaka 1862 Vikrama"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"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":"-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},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","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 February 1, 1940 CE · Ṛṣikeśa · Vidhyamitra","description":"February 1, 1940 CE for Ṛṣikeśa: Kṛṣṇa Aṣṭamī, sūryodaya 07:09, sūryāsta 17:53.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1940-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1940-02-01","sa":"https://sa.vidhyamitra.com/city/rishikesh/1940-02-01","hi":"https://hi.vidhyamitra.com/city/rishikesh/1940-02-01","x-default":"https://vidhyamitra.com/city/rishikesh/1940-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-22T15:53:43.414Z","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":"2026-05-22T15:53:43.414Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-22T15:53:43.414Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}