{"id":"vidhyamitra:city-day:rishikesh:1937-10-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1937-10-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1937-10-08","date_display":"October 8, 1937 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":1937,"month":10,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2428814.770833,"kali_year":5039,"ahargana":1840349.2708,"sun":{"sidereal_longitude":170.7618,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":213.6977,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":42.9359,"elapsed_within_tithi_degrees":6.9359},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":213.6977,"elapsed_within_degrees":0.3644},"yoga":{"number":2,"name":"Prīti","sum_longitude":24.4595},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":1937,"month":10,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2428814.770833,"ahargana":1840349.2708,"kali_year":5039,"ayanamsa_lahiri":22.9837,"grahas":{"sun":{"sidereal_longitude":171.354472,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"moon":{"sidereal_longitude":211.205372,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false,"latitude":-1.2197},"mars":{"sidereal_longitude":253.07157199999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":157.27807200000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":266.1599719999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":143.60087199999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":338.218272,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":229.4393,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":49.4393,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":1937,"month":10,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2428814.770833,"kali_year":5039,"ahargana":1840349.2708,"sun":{"sidereal_longitude":170.7618,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":213.6977,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":42.9359,"elapsed_within_tithi_degrees":6.9359},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":213.6977,"elapsed_within_degrees":0.3644},"yoga":{"number":2,"name":"Prīti","sum_longitude":24.4595},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.22,"elongation":42.936},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.22,"opposition_distance":137.064}},"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":"06:13","sunsetLocal":"17:54","solarNoonLocal":"12:04","dayLengthHours":11.690815617544775,"dayLengthDisplay":"11 Hours 41 Mins 27 Secs","nightLengthDisplay":"12 Hours 18 Mins 33 Secs","moonriseLocal":"09:26","moonsetLocal":"20:00","rahuKala":{"name":"Rāhu Kāla","start":"10:36","end":"12:04","startHours":10.600319460680844,"endHours":12.06167141287394,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:59","end":"16:27","startHours":14.984375317260135,"endHours":16.44572726945323,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:41","end":"09:08","startHours":7.677615556294649,"endHours":9.138967508487745,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:20","startHours":8.944120581528667,"endHours":9.333814435446826,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:42","end":"07:01","startHours":6.703380921499251,"endHours":7.015136004633779,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:27","startHours":11.671977558955781,"endHours":12.451365266792099,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:39","end":"05:26","startHours":4.657488188428916,"endHours":5.436875896265234,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:15","end":"06:13","startHours":5.242028969306155,"endHours":6.216263604101552,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:47","startHours":14.010140682464737,"endHours":14.789528390301056,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:42","end":"18:06","startHours":17.707079221646328,"endHours":18.107079221646327,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:54","end":"18:24","startHours":17.907079221646327,"endHours":18.394196539044028,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:39","end":"19:24","startHours":17.657079221646327,"endHours":19.407079221646327,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:27","startHours":23.67197755895578,"endHours":24.451365266792102,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:13","end":"07:41","startHours":6.216263604101552,"endHours":7.677615556294649,"quality":"neutral"},{"name":"Labha","start":"07:41","end":"09:08","startHours":7.677615556294649,"endHours":9.138967508487745,"quality":"auspicious"},{"name":"Amṛta","start":"09:08","end":"10:36","startHours":9.138967508487745,"endHours":10.600319460680844,"quality":"auspicious"},{"name":"Kāla","start":"10:36","end":"12:04","startHours":10.600319460680844,"endHours":12.06167141287394,"quality":"inauspicious"},{"name":"Śubha","start":"12:04","end":"13:31","startHours":12.06167141287394,"endHours":13.523023365067036,"quality":"auspicious"},{"name":"Roga","start":"13:31","end":"14:59","startHours":13.523023365067036,"endHours":14.984375317260135,"quality":"inauspicious"},{"name":"Udveg","start":"14:59","end":"16:27","startHours":14.984375317260135,"endHours":16.44572726945323,"quality":"inauspicious"},{"name":"Chala","start":"16:27","end":"17:54","startHours":16.44572726945323,"endHours":17.907079221646327,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:54","end":"19:27","startHours":17.907079221646327,"endHours":19.44572726945323,"quality":"inauspicious"},{"name":"Udveg","start":"19:27","end":"20:59","startHours":19.44572726945323,"endHours":20.984375317260135,"quality":"inauspicious"},{"name":"Chala","start":"20:59","end":"22:31","startHours":20.984375317260135,"endHours":22.523023365067036,"quality":"neutral"},{"name":"Labha","start":"22:31","end":"00:04","startHours":22.523023365067036,"endHours":24.06167141287394,"quality":"auspicious"},{"name":"Amṛta","start":"00:04","end":"01:36","startHours":24.06167141287394,"endHours":25.600319460680844,"quality":"auspicious"},{"name":"Kāla","start":"01:36","end":"03:08","startHours":25.600319460680844,"endHours":27.138967508487745,"quality":"inauspicious"},{"name":"Śubha","start":"03:08","end":"04:41","startHours":27.138967508487745,"endHours":28.677615556294647,"quality":"auspicious"},{"name":"Roga","start":"04:41","end":"06:13","startHours":28.677615556294647,"endHours":30.216263604101552,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:13","end":"07:13","startHours":6.216263604101552,"endHours":7.216263604101552,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:13","end":"08:13","startHours":7.216263604101552,"endHours":8.216263604101552,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:13","end":"09:13","startHours":8.216263604101552,"endHours":9.216263604101552,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:13","end":"10:13","startHours":9.216263604101552,"endHours":10.216263604101552,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:13","end":"11:13","startHours":10.216263604101552,"endHours":11.216263604101552,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:13","end":"12:13","startHours":11.216263604101552,"endHours":12.216263604101552,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:13","end":"13:13","startHours":12.216263604101552,"endHours":13.216263604101552,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:13","end":"14:13","startHours":13.216263604101552,"endHours":14.216263604101552,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:13","end":"15:13","startHours":14.216263604101552,"endHours":15.216263604101552,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:13","end":"16:13","startHours":15.216263604101552,"endHours":16.216263604101552,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:13","end":"17:13","startHours":16.216263604101552,"endHours":17.216263604101552,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:13","end":"18:13","startHours":17.216263604101552,"endHours":18.216263604101552,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:13","end":"19:13","startHours":18.216263604101552,"endHours":19.216263604101552,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:13","end":"20:13","startHours":19.216263604101552,"endHours":20.216263604101552,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:13","end":"21:13","startHours":20.216263604101552,"endHours":21.216263604101552,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:13","end":"22:13","startHours":21.216263604101552,"endHours":22.216263604101552,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:13","end":"23:13","startHours":22.216263604101552,"endHours":23.216263604101552,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:13","end":"00:13","startHours":23.216263604101552,"endHours":24.216263604101552,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:13","end":"01:13","startHours":24.216263604101552,"endHours":25.216263604101552,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:13","end":"02:13","startHours":25.216263604101552,"endHours":26.216263604101552,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:13","end":"03:13","startHours":26.216263604101552,"endHours":27.216263604101552,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:13","end":"04:13","startHours":27.216263604101552,"endHours":28.216263604101552,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:13","end":"05:13","startHours":28.216263604101552,"endHours":29.216263604101552,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:13","end":"06:13","startHours":29.216263604101552,"endHours":30.216263604101552,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"South-East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-5.652585784155917,"eotMinutes":13.229315227563635,"ayanamsa":22.9837}},"calendars":{"vikram_samvat":1994,"vikram_samvatsara":"Vikṛti","saka_samvat":1859,"saka_samvatsara":"Īśvara","bengali_samvat":1344,"malayalam_era":1113,"nanakshahi_year":468,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Caturthī · Vikram 1994 Vikṛti · Śaka 1859 Īśvara"},"festivals":[{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"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 October 8, 1937 CE · Ṛṣikeśa · Vidhyamitra","description":"October 8, 1937 CE for Ṛṣikeśa: Śukla Caturthī, sūryodaya 06:13, sūryāsta 17:54.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1937-10-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1937-10-08","sa":"https://sa.vidhyamitra.com/city/rishikesh/1937-10-08","hi":"https://hi.vidhyamitra.com/city/rishikesh/1937-10-08","x-default":"https://vidhyamitra.com/city/rishikesh/1937-10-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T01:43:13.911Z","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":"2026-05-31T01:43:13.911Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T01:43:13.911Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}