{"id":"vidhyamitra:city-day:rishikesh:1979-10-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1979-10-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1979-10-27","date_display":"October 27, 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":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444173.770833,"kali_year":5081,"ahargana":1855708.2708,"sun":{"sidereal_longitude":188.7973,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":261.7319,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":72.9346,"elapsed_within_tithi_degrees":0.9346},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3,"moon_longitude":261.7319,"elapsed_within_degrees":8.3986},"yoga":{"number":7,"name":"Sukarma","sum_longitude":90.5292},"karana":{"half_tithi_index":12,"name":"Gara"},"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":1979,"month":10,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444173.770833,"ahargana":1855708.2708,"kali_year":5081,"ayanamsa_lahiri":23.5711,"grahas":{"sun":{"sidereal_longitude":189.452545,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":260.40024500000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false,"latitude":3.6353},"mars":{"sidereal_longitude":114.95074499999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":213.47444500000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":131.143345,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":206.20724500000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":148.99634500000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":135.6455,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":315.6455,"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":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444173.770833,"kali_year":5081,"ahargana":1855708.2708,"sun":{"sidereal_longitude":188.7973,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":261.7319,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":72.9346,"elapsed_within_tithi_degrees":0.9346},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3,"moon_longitude":261.7319,"elapsed_within_degrees":8.3986},"yoga":{"number":7,"name":"Sukarma","sum_longitude":90.5292},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.635,"elongation":72.935},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.635,"opposition_distance":107.065}},"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":"06:26","sunsetLocal":"17:35","solarNoonLocal":"12:01","dayLengthHours":11.146953993723017,"dayLengthDisplay":"11 Hours 08 Mins 49 Secs","nightLengthDisplay":"12 Hours 51 Mins 11 Secs","moonriseLocal":"11:37","moonsetLocal":"21:51","rahuKala":{"name":"Rāhu Kāla","start":"09:13","end":"10:37","startHours":9.222746440537325,"endHours":10.6161156897527,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:24","end":"14:48","startHours":13.402854188183454,"endHours":14.796223437398833,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:26","end":"07:50","startHours":6.43600794210657,"endHours":7.829377191321947,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:02","end":"09:25","startHours":9.036963873975274,"endHours":9.408529007099375,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:54","end":"07:12","startHours":6.900464358511695,"endHours":7.197716465010976,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:38","end":"12:23","startHours":11.637919805843978,"endHours":12.38105007209218,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:57","end":"05:42","startHours":4.9497474096101675,"endHours":5.692877675858369,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:30","end":"06:26","startHours":5.507095109296318,"endHours":6.43600794210657,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:52","end":"14:37","startHours":13.867310604588582,"endHours":14.610440870836783,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:23","end":"17:47","startHours":17.382961935829588,"endHours":17.782961935829587,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:35","end":"18:03","startHours":17.582961935829587,"endHours":18.047418352234715,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:20","end":"19:05","startHours":17.332961935829587,"endHours":19.082961935829587,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:38","end":"00:23","startHours":23.63791980584398,"endHours":24.38105007209218,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:26","end":"07:50","startHours":6.43600794210657,"endHours":7.829377191321947,"quality":"inauspicious"},{"name":"Śubha","start":"07:50","end":"09:13","startHours":7.829377191321947,"endHours":9.222746440537325,"quality":"auspicious"},{"name":"Roga","start":"09:13","end":"10:37","startHours":9.222746440537325,"endHours":10.6161156897527,"quality":"inauspicious"},{"name":"Udveg","start":"10:37","end":"12:01","startHours":10.6161156897527,"endHours":12.009484938968079,"quality":"inauspicious"},{"name":"Chala","start":"12:01","end":"13:24","startHours":12.009484938968079,"endHours":13.402854188183454,"quality":"neutral"},{"name":"Labha","start":"13:24","end":"14:48","startHours":13.402854188183454,"endHours":14.796223437398833,"quality":"auspicious"},{"name":"Amṛta","start":"14:48","end":"16:11","startHours":14.796223437398833,"endHours":16.18959268661421,"quality":"auspicious"},{"name":"Kāla","start":"16:11","end":"17:35","startHours":16.18959268661421,"endHours":17.582961935829587,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:35","end":"19:11","startHours":17.582961935829587,"endHours":19.189592686614212,"quality":"auspicious"},{"name":"Amṛta","start":"19:11","end":"20:48","startHours":19.189592686614212,"endHours":20.796223437398833,"quality":"auspicious"},{"name":"Kāla","start":"20:48","end":"22:24","startHours":20.796223437398833,"endHours":22.402854188183454,"quality":"inauspicious"},{"name":"Śubha","start":"22:24","end":"00:01","startHours":22.402854188183454,"endHours":24.00948493896808,"quality":"auspicious"},{"name":"Roga","start":"00:01","end":"01:37","startHours":24.00948493896808,"endHours":25.616115689752704,"quality":"inauspicious"},{"name":"Udveg","start":"01:37","end":"03:13","startHours":25.616115689752704,"endHours":27.222746440537325,"quality":"inauspicious"},{"name":"Chala","start":"03:13","end":"04:50","startHours":27.222746440537325,"endHours":28.829377191321946,"quality":"neutral"},{"name":"Labha","start":"04:50","end":"06:26","startHours":28.829377191321946,"endHours":30.43600794210657,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:26","end":"07:26","startHours":6.43600794210657,"endHours":7.43600794210657,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:26","end":"08:26","startHours":7.43600794210657,"endHours":8.43600794210657,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:26","end":"09:26","startHours":8.43600794210657,"endHours":9.43600794210657,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:26","end":"10:26","startHours":9.43600794210657,"endHours":10.43600794210657,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:26","end":"11:26","startHours":10.43600794210657,"endHours":11.43600794210657,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:26","end":"12:26","startHours":11.43600794210657,"endHours":12.43600794210657,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:26","end":"13:26","startHours":12.43600794210657,"endHours":13.43600794210657,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:26","end":"14:26","startHours":13.43600794210657,"endHours":14.43600794210657,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:26","end":"15:26","startHours":14.43600794210657,"endHours":15.43600794210657,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:26","end":"16:26","startHours":15.43600794210657,"endHours":16.43600794210657,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:26","end":"17:26","startHours":16.43600794210657,"endHours":17.43600794210657,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:26","end":"18:26","startHours":17.43600794210657,"endHours":18.43600794210657,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:26","end":"19:26","startHours":18.43600794210657,"endHours":19.43600794210657,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:26","end":"20:26","startHours":19.43600794210657,"endHours":20.43600794210657,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:26","end":"21:26","startHours":20.43600794210657,"endHours":21.43600794210657,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:26","end":"22:26","startHours":21.43600794210657,"endHours":22.43600794210657,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:26","end":"23:26","startHours":22.43600794210657,"endHours":23.43600794210657,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:26","end":"00:26","startHours":23.43600794210657,"endHours":24.43600794210657,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:26","end":"01:26","startHours":24.43600794210657,"endHours":25.43600794210657,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:26","end":"02:26","startHours":25.43600794210657,"endHours":26.43600794210657,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:26","end":"03:26","startHours":26.43600794210657,"endHours":27.43600794210657,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:26","end":"04:26","startHours":27.43600794210657,"endHours":28.43600794210657,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:26","end":"05:26","startHours":28.43600794210657,"endHours":29.43600794210657,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:26","end":"06:26","startHours":29.43600794210657,"endHours":30.43600794210657,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Utpāta","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":-12.518701180198763,"eotMinutes":16.360503661915228,"ayanamsa":23.5711}},"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 Saptamī · 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}],"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":[]},"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 27, 1979 CE · Ṛṣikeśa · Vidhyamitra","description":"October 27, 1979 CE for Ṛṣikeśa: Śukla Saptamī, sūryodaya 06:26, sūryāsta 17:35.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1979-10-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1979-10-27","sa":"https://sa.vidhyamitra.com/city/rishikesh/1979-10-27","hi":"https://hi.vidhyamitra.com/city/rishikesh/1979-10-27","x-default":"https://vidhyamitra.com/city/rishikesh/1979-10-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-23T03:41:39.028Z","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":"2026-05-23T03:41:39.028Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-23T03:41:39.028Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}