{"id":"vidhyamitra:city-day:rishikesh:1979-12-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1979-12-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1979-12-08","date_display":"December 8, 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":12,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444215.770833,"kali_year":5081,"ahargana":1855750.2708,"sun":{"sidereal_longitude":231.368,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":104.1861,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":232.8182,"elapsed_within_tithi_degrees":4.8182},"nakshatra":{"number":8,"name":"Puṣya","pada":4,"moon_longitude":104.1861,"elapsed_within_degrees":10.8528},"yoga":{"number":26,"name":"Indra","sum_longitude":335.5541},"karana":{"half_tithi_index":38,"name":"Kaulava"},"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":12,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444215.770833,"ahargana":1855750.2708,"kali_year":5081,"ayanamsa_lahiri":23.5727,"grahas":{"sun":{"sidereal_longitude":231.76744099999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":103.10464100000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false,"latitude":-2.196},"mars":{"sidereal_longitude":134.13024099999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":211.344241,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":135.886441,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":258.4725410000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":152.44564100000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":133.4202,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":313.4202,"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":12,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444215.770833,"kali_year":5081,"ahargana":1855750.2708,"sun":{"sidereal_longitude":231.368,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":104.1861,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":232.8182,"elapsed_within_tithi_degrees":4.8182},"nakshatra":{"number":8,"name":"Puṣya","pada":4,"moon_longitude":104.1861,"elapsed_within_degrees":10.8528},"yoga":{"number":26,"name":"Indra","sum_longitude":335.5541},"karana":{"half_tithi_index":38,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.196,"elongation":127.182},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.196,"opposition_distance":52.818}},"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":"07:01","sunsetLocal":"17:18","solarNoonLocal":"12:10","dayLengthHours":10.279396920536481,"dayLengthDisplay":"10 Hours 16 Mins 46 Secs","nightLengthDisplay":"13 Hours 43 Mins 14 Secs","moonriseLocal":"20:47","moonsetLocal":"10:23","rahuKala":{"name":"Rāhu Kāla","start":"09:35","end":"10:53","startHours":9.590673684760315,"endHours":10.875598299827375,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:27","end":"14:44","startHours":13.445447529961495,"endHours":14.730372145028555,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:01","end":"08:18","startHours":7.020824454626195,"endHours":8.305749069693254,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:25","end":"09:46","startHours":9.419350402751373,"endHours":9.761996966769257,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:27","end":"07:43","startHours":7.449132659648548,"endHours":7.723249910862854,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:30","startHours":11.817876350876551,"endHours":12.503169478912318,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:39","end":"06:20","startHours":5.650238198554664,"endHours":6.335531326590429,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:10","end":"07:01","startHours":6.164208044581488,"endHours":7.020824454626195,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:52","end":"14:34","startHours":13.873755734983849,"endHours":14.559048863019614,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:06","end":"17:30","startHours":17.100221375162675,"endHours":17.500221375162674,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:18","end":"17:44","startHours":17.300221375162675,"endHours":17.72852958018503,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:03","end":"18:48","startHours":17.050221375162675,"endHours":18.800221375162675,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:30","startHours":23.817876350876553,"endHours":24.50316947891232,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:01","end":"08:18","startHours":7.020824454626195,"endHours":8.305749069693254,"quality":"inauspicious"},{"name":"Śubha","start":"08:18","end":"09:35","startHours":8.305749069693254,"endHours":9.590673684760315,"quality":"auspicious"},{"name":"Roga","start":"09:35","end":"10:53","startHours":9.590673684760315,"endHours":10.875598299827375,"quality":"inauspicious"},{"name":"Udveg","start":"10:53","end":"12:10","startHours":10.875598299827375,"endHours":12.160522914894436,"quality":"inauspicious"},{"name":"Chala","start":"12:10","end":"13:27","startHours":12.160522914894436,"endHours":13.445447529961495,"quality":"neutral"},{"name":"Labha","start":"13:27","end":"14:44","startHours":13.445447529961495,"endHours":14.730372145028555,"quality":"auspicious"},{"name":"Amṛta","start":"14:44","end":"16:01","startHours":14.730372145028555,"endHours":16.015296760095616,"quality":"auspicious"},{"name":"Kāla","start":"16:01","end":"17:18","startHours":16.015296760095616,"endHours":17.300221375162675,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:18","end":"19:01","startHours":17.300221375162675,"endHours":19.015296760095616,"quality":"auspicious"},{"name":"Amṛta","start":"19:01","end":"20:44","startHours":19.015296760095616,"endHours":20.730372145028554,"quality":"auspicious"},{"name":"Kāla","start":"20:44","end":"22:27","startHours":20.730372145028554,"endHours":22.445447529961495,"quality":"inauspicious"},{"name":"Śubha","start":"22:27","end":"00:10","startHours":22.445447529961495,"endHours":24.160522914894436,"quality":"auspicious"},{"name":"Roga","start":"00:10","end":"01:53","startHours":24.160522914894436,"endHours":25.875598299827374,"quality":"inauspicious"},{"name":"Udveg","start":"01:53","end":"03:35","startHours":25.875598299827374,"endHours":27.590673684760315,"quality":"inauspicious"},{"name":"Chala","start":"03:35","end":"05:18","startHours":27.590673684760315,"endHours":29.305749069693256,"quality":"neutral"},{"name":"Labha","start":"05:18","end":"07:01","startHours":29.305749069693256,"endHours":31.020824454626194,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:01","end":"08:01","startHours":7.020824454626195,"endHours":8.020824454626194,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:01","end":"09:01","startHours":8.020824454626194,"endHours":9.020824454626194,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:01","end":"10:01","startHours":9.020824454626194,"endHours":10.020824454626194,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:01","end":"11:01","startHours":10.020824454626194,"endHours":11.020824454626194,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:01","end":"12:01","startHours":11.020824454626194,"endHours":12.020824454626194,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:01","end":"13:01","startHours":12.020824454626194,"endHours":13.020824454626194,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:01","end":"14:01","startHours":13.020824454626194,"endHours":14.020824454626194,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:01","end":"15:01","startHours":14.020824454626194,"endHours":15.020824454626194,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:01","end":"16:01","startHours":15.020824454626194,"endHours":16.020824454626194,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:01","end":"17:01","startHours":16.020824454626194,"endHours":17.020824454626194,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:01","end":"18:01","startHours":17.020824454626194,"endHours":18.020824454626194,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:01","end":"19:01","startHours":18.020824454626194,"endHours":19.020824454626194,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:01","end":"20:01","startHours":19.020824454626194,"endHours":20.020824454626194,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:01","end":"21:01","startHours":20.020824454626194,"endHours":21.020824454626194,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:01","end":"22:01","startHours":21.020824454626194,"endHours":22.020824454626194,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:01","end":"23:01","startHours":22.020824454626194,"endHours":23.020824454626194,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:01","end":"00:01","startHours":23.020824454626194,"endHours":24.020824454626194,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:01","end":"01:01","startHours":24.020824454626194,"endHours":25.020824454626194,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:01","end":"02:01","startHours":25.020824454626194,"endHours":26.020824454626194,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:01","end":"03:01","startHours":26.020824454626194,"endHours":27.020824454626194,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:01","end":"04:01","startHours":27.020824454626194,"endHours":28.020824454626194,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:01","end":"05:01","startHours":28.020824454626194,"endHours":29.020824454626194,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:01","end":"06:01","startHours":29.020824454626194,"endHours":30.020824454626194,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:01","end":"07:01","startHours":30.020824454626194,"endHours":31.020824454626194,"planetary_lord":"Mercury"}],"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","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"East","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-22.630356127942193,"eotMinutes":7.298225106333945,"ayanamsa":23.5727}},"calendars":{"vikram_samvat":2036,"vikram_samvatsara":"Aṅgirasa","saka_samvat":1901,"saka_samvatsara":"Siddhārthī","bengali_samvat":1386,"malayalam_era":1155,"nanakshahi_year":510,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Kṛṣṇa Pañcamī · Vikram 2036 Aṅgirasa · Śaka 1901 Siddhārthī"},"festivals":[{"id":"vrischika-sankranti","name":"Vṛścika Saṅkrānti","name_sanskrit":"वृश्चिक सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Scorpio.","vrata":false,"detection":{"sun_rashi":"Vṛścika"},"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 December 8, 1979 CE · Ṛṣikeśa · Vidhyamitra","description":"December 8, 1979 CE for Ṛṣikeśa: Kṛṣṇa Pañcamī, sūryodaya 07:01, sūryāsta 17:18.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1979-12-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1979-12-08","sa":"https://sa.vidhyamitra.com/city/rishikesh/1979-12-08","hi":"https://hi.vidhyamitra.com/city/rishikesh/1979-12-08","x-default":"https://vidhyamitra.com/city/rishikesh/1979-12-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-19T01:23:12.948Z","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":"2026-05-19T01:23:12.948Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-19T01:23:12.948Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}