{"id":"vidhyamitra:city-day:rishikesh:1979-10-25:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1979-10-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1979-10-25","date_display":"October 25, 1979 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":1979,"month":10,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444171.770833,"kali_year":5081,"ahargana":1855706.2708,"sun":{"sidereal_longitude":186.7967,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":234.6453,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":47.8486,"elapsed_within_tithi_degrees":11.8486},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":234.6453,"elapsed_within_degrees":7.9786},"yoga":{"number":5,"name":"Śobhana","sum_longitude":61.442},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"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":1979,"month":10,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444171.770833,"ahargana":1855706.2708,"kali_year":5081,"ayanamsa_lahiri":23.571,"grahas":{"sun":{"sidereal_longitude":187.45842200000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":233.71032200000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false,"latitude":4.4458},"mars":{"sidereal_longitude":113.884522,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":211.160122,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":130.82252200000005,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":203.71522200000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":148.78302200000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":135.7515,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":315.7515,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","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":1979,"month":10,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444171.770833,"kali_year":5081,"ahargana":1855706.2708,"sun":{"sidereal_longitude":186.7967,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":234.6453,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":47.8486,"elapsed_within_tithi_degrees":11.8486},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":234.6453,"elapsed_within_degrees":7.9786},"yoga":{"number":5,"name":"Śobhana","sum_longitude":61.442},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.446,"elongation":47.849},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.446,"opposition_distance":132.151}},"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":"06:25","sunsetLocal":"17:37","solarNoonLocal":"12:01","dayLengthHours":11.202551775836536,"dayLengthDisplay":"11 Hours 12 Mins 09 Secs","nightLengthDisplay":"12 Hours 47 Mins 51 Secs","moonriseLocal":"09:59","moonsetLocal":"20:12","rahuKala":{"name":"Rāhu Kāla","start":"13:25","end":"14:49","startHours":13.411897987530136,"endHours":14.812216959509701,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:25","end":"07:49","startHours":6.410303127632299,"endHours":7.810622099611866,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:13","end":"10:37","startHours":9.210941071591433,"endHours":10.611260043571,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:01","end":"09:24","startHours":9.02423187532749,"endHours":9.397650267855376,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:53","end":"07:11","startHours":6.877076118292155,"endHours":7.175810832314463,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:38","end":"12:23","startHours":11.638160623022683,"endHours":12.384997408078453,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:55","end":"05:40","startHours":4.916629557520761,"endHours":5.66346634257653,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:29","end":"06:25","startHours":5.476757146312588,"endHours":6.410303127632299,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:53","end":"14:38","startHours":13.87867097818999,"endHours":14.62550776324576,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:25","end":"17:49","startHours":17.412854903468837,"endHours":17.812854903468835,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:37","end":"18:05","startHours":17.612854903468836,"endHours":18.07962789412869,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:22","end":"19:07","startHours":17.362854903468836,"endHours":19.112854903468836,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:38","end":"00:23","startHours":23.63816062302268,"endHours":24.38499740807845,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:25","end":"07:49","startHours":6.410303127632299,"endHours":7.810622099611866,"quality":"auspicious"},{"name":"Roga","start":"07:49","end":"09:13","startHours":7.810622099611866,"endHours":9.210941071591433,"quality":"inauspicious"},{"name":"Udveg","start":"09:13","end":"10:37","startHours":9.210941071591433,"endHours":10.611260043571,"quality":"inauspicious"},{"name":"Chala","start":"10:37","end":"12:01","startHours":10.611260043571,"endHours":12.011579015550566,"quality":"neutral"},{"name":"Labha","start":"12:01","end":"13:25","startHours":12.011579015550566,"endHours":13.411897987530136,"quality":"auspicious"},{"name":"Amṛta","start":"13:25","end":"14:49","startHours":13.411897987530136,"endHours":14.812216959509701,"quality":"auspicious"},{"name":"Kāla","start":"14:49","end":"16:13","startHours":14.812216959509701,"endHours":16.212535931489267,"quality":"inauspicious"},{"name":"Śubha","start":"16:13","end":"17:37","startHours":16.212535931489267,"endHours":17.612854903468836,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:37","end":"19:13","startHours":17.612854903468836,"endHours":19.21253593148927,"quality":"auspicious"},{"name":"Kāla","start":"19:13","end":"20:49","startHours":19.21253593148927,"endHours":20.8122169595097,"quality":"inauspicious"},{"name":"Śubha","start":"20:49","end":"22:25","startHours":20.8122169595097,"endHours":22.411897987530136,"quality":"auspicious"},{"name":"Roga","start":"22:25","end":"00:01","startHours":22.411897987530136,"endHours":24.011579015550566,"quality":"inauspicious"},{"name":"Udveg","start":"00:01","end":"01:37","startHours":24.011579015550566,"endHours":25.611260043571,"quality":"inauspicious"},{"name":"Chala","start":"01:37","end":"03:13","startHours":25.611260043571,"endHours":27.210941071591435,"quality":"neutral"},{"name":"Labha","start":"03:13","end":"04:49","startHours":27.210941071591435,"endHours":28.81062209961187,"quality":"auspicious"},{"name":"Amṛta","start":"04:49","end":"06:25","startHours":28.81062209961187,"endHours":30.4103031276323,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:25","end":"07:25","startHours":6.410303127632299,"endHours":7.410303127632299,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:25","end":"08:25","startHours":7.410303127632299,"endHours":8.4103031276323,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:25","end":"09:25","startHours":8.4103031276323,"endHours":9.4103031276323,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:25","end":"10:25","startHours":9.4103031276323,"endHours":10.4103031276323,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:25","end":"11:25","startHours":10.4103031276323,"endHours":11.4103031276323,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:25","end":"12:25","startHours":11.4103031276323,"endHours":12.4103031276323,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:25","end":"13:25","startHours":12.4103031276323,"endHours":13.4103031276323,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:25","end":"14:25","startHours":13.4103031276323,"endHours":14.4103031276323,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:25","end":"15:25","startHours":14.4103031276323,"endHours":15.4103031276323,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:25","end":"16:25","startHours":15.4103031276323,"endHours":16.4103031276323,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:25","end":"17:25","startHours":16.4103031276323,"endHours":17.4103031276323,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:25","end":"18:25","startHours":17.4103031276323,"endHours":18.4103031276323,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:25","end":"19:25","startHours":18.4103031276323,"endHours":19.4103031276323,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:25","end":"20:25","startHours":19.4103031276323,"endHours":20.4103031276323,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:25","end":"21:25","startHours":20.4103031276323,"endHours":21.4103031276323,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:25","end":"22:25","startHours":21.4103031276323,"endHours":22.4103031276323,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:25","end":"23:25","startHours":22.4103031276323,"endHours":23.4103031276323,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:25","end":"00:25","startHours":23.4103031276323,"endHours":24.4103031276323,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:25","end":"01:25","startHours":24.4103031276323,"endHours":25.4103031276323,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:25","end":"02:25","startHours":25.4103031276323,"endHours":26.4103031276323,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:25","end":"03:25","startHours":26.4103031276323,"endHours":27.4103031276323,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:25","end":"04:25","startHours":27.4103031276323,"endHours":28.4103031276323,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:25","end":"05:25","startHours":28.4103031276323,"endHours":29.4103031276323,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:25","end":"06:25","startHours":29.4103031276323,"endHours":30.4103031276323,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"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":"South (Dakṣiṇa)","chandraVasa":"North-East","rahuVasa":"North-West","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-11.830810436160526,"eotMinutes":16.234859066965946,"ayanamsa":23.571}},"calendars":{"vikram_samvat":2036,"vikram_samvatsara":"Aṅgirasa","saka_samvat":1901,"saka_samvatsara":"Siddhārthī","bengali_samvat":1386,"malayalam_era":1155,"nanakshahi_year":510,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Śukla Pakṣa","solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Śukla Caturthī · Vikram 2036 Aṅgirasa · Śaka 1901 Siddhārthī"},"festivals":[{"id":"tula-sankranti","name":"Tulā Saṅkrānti","name_sanskrit":"तुला सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Libra.","vrata":false,"detection":{"sun_rashi":"Tulā"},"precedence":5},{"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":"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":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","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 October 25, 1979 CE · Ṛṣikeśa · Vidhyamitra","description":"October 25, 1979 CE for Ṛṣikeśa: Śukla Caturthī, sūryodaya 06:25, sūryāsta 17:37.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1979-10-25","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1979-10-25","sa":"https://sa.vidhyamitra.com/city/rishikesh/1979-10-25","hi":"https://hi.vidhyamitra.com/city/rishikesh/1979-10-25","x-default":"https://vidhyamitra.com/city/rishikesh/1979-10-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-24T14:55:24.886Z","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":"2026-05-24T14:55:24.886Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-24T14:55:24.886Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}