{"id":"vidhyamitra:city-day:rishikesh:1981-07-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1981-07-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-07-08","date_display":"July 8, 1981 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":1981,"month":7,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444793.770833,"kali_year":5083,"ahargana":1856328.2708,"sun":{"sidereal_longitude":81.8703,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":159.0762,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":77.2059,"elapsed_within_tithi_degrees":5.2059},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":159.0762,"elapsed_within_degrees":12.4096},"yoga":{"number":19,"name":"Parigha","sum_longitude":240.9466},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1981,"month":7,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444793.770833,"ahargana":1856328.2708,"kali_year":5083,"ayanamsa_lahiri":23.5948,"grahas":{"sun":{"sidereal_longitude":82.20995700000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"moon":{"sidereal_longitude":160.13425700000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false,"latitude":3.7418},"mars":{"sidereal_longitude":59.61695700000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":63.632857,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":159.51475700000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":106.65455700000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":160.02425700000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":102.7949,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":282.7949,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"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":1981,"month":7,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444793.770833,"kali_year":5083,"ahargana":1856328.2708,"sun":{"sidereal_longitude":81.8703,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":159.0762,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":77.2059,"elapsed_within_tithi_degrees":5.2059},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":159.0762,"elapsed_within_degrees":12.4096},"yoga":{"number":19,"name":"Parigha","sum_longitude":240.9466},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.742,"elongation":77.206},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.742,"opposition_distance":102.794}},"eclipse_window_40days":[{"offset_days":9,"type":"lunar","occurs":true,"moon_latitude":1.092,"opposition_distance":2.128}]},"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":"05:22","sunsetLocal":"19:21","solarNoonLocal":"12:22","dayLengthHours":13.994950105543198,"dayLengthDisplay":"13 Hours 59 Mins 42 Secs","nightLengthDisplay":"10 Hours 00 Mins 18 Secs","moonriseLocal":"11:34","moonsetLocal":"23:33","rahuKala":{"name":"Rāhu Kāla","start":"12:22","end":"14:07","startHours":12.360132919560854,"endHours":14.109501682753754,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:07","end":"08:52","startHours":7.112026629982154,"endHours":8.861395393175053,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:37","end":"12:22","startHours":10.610764156367953,"endHours":12.360132919560854,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:06","startHours":8.628146224749333,"endHours":9.094644561600774,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:57","end":"06:19","startHours":5.945780787853554,"endHours":6.318979457334706,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:50","startHours":11.893634582709414,"endHours":12.826631256412295,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:30","end":"04:26","startHours":3.4966645193834944,"endHours":4.429661193086375,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:12","end":"05:22","startHours":4.196412024660654,"endHours":5.362657866789254,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:42","end":"15:38","startHours":14.692624603818052,"endHours":15.625621277520931,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:09","end":"19:33","startHours":19.157607972332453,"endHours":19.557607972332452,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:21","end":"19:56","startHours":19.357607972332453,"endHours":19.940730893396754,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:06","end":"20:51","startHours":19.107607972332453,"endHours":20.857607972332453,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:50","startHours":23.893634582709414,"endHours":24.826631256412295,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:22","end":"07:07","startHours":5.362657866789254,"endHours":7.112026629982154,"quality":"auspicious"},{"name":"Amṛta","start":"07:07","end":"08:52","startHours":7.112026629982154,"endHours":8.861395393175053,"quality":"auspicious"},{"name":"Kāla","start":"08:52","end":"10:37","startHours":8.861395393175053,"endHours":10.610764156367953,"quality":"inauspicious"},{"name":"Śubha","start":"10:37","end":"12:22","startHours":10.610764156367953,"endHours":12.360132919560854,"quality":"auspicious"},{"name":"Roga","start":"12:22","end":"14:07","startHours":12.360132919560854,"endHours":14.109501682753754,"quality":"inauspicious"},{"name":"Udveg","start":"14:07","end":"15:52","startHours":14.109501682753754,"endHours":15.858870445946653,"quality":"inauspicious"},{"name":"Chala","start":"15:52","end":"17:36","startHours":15.858870445946653,"endHours":17.608239209139555,"quality":"neutral"},{"name":"Labha","start":"17:36","end":"19:21","startHours":17.608239209139555,"endHours":19.357607972332453,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:21","end":"20:36","startHours":19.357607972332453,"endHours":20.60823920913955,"quality":"inauspicious"},{"name":"Chala","start":"20:36","end":"21:52","startHours":20.60823920913955,"endHours":21.858870445946653,"quality":"neutral"},{"name":"Labha","start":"21:52","end":"23:07","startHours":21.858870445946653,"endHours":23.109501682753752,"quality":"auspicious"},{"name":"Amṛta","start":"23:07","end":"00:22","startHours":23.109501682753752,"endHours":24.360132919560854,"quality":"auspicious"},{"name":"Kāla","start":"00:22","end":"01:37","startHours":24.360132919560854,"endHours":25.610764156367953,"quality":"inauspicious"},{"name":"Śubha","start":"01:37","end":"02:52","startHours":25.610764156367953,"endHours":26.86139539317505,"quality":"auspicious"},{"name":"Roga","start":"02:52","end":"04:07","startHours":26.86139539317505,"endHours":28.112026629982154,"quality":"inauspicious"},{"name":"Udveg","start":"04:07","end":"05:22","startHours":28.112026629982154,"endHours":29.362657866789256,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:22","end":"06:22","startHours":5.362657866789254,"endHours":6.362657866789254,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:22","end":"07:22","startHours":6.362657866789254,"endHours":7.362657866789254,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:22","end":"08:22","startHours":7.362657866789254,"endHours":8.362657866789254,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:22","end":"09:22","startHours":8.362657866789254,"endHours":9.362657866789254,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:22","end":"10:22","startHours":9.362657866789254,"endHours":10.362657866789254,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:22","end":"11:22","startHours":10.362657866789254,"endHours":11.362657866789254,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:22","end":"12:22","startHours":11.362657866789254,"endHours":12.362657866789254,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:22","end":"13:22","startHours":12.362657866789254,"endHours":13.362657866789254,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:22","end":"14:22","startHours":13.362657866789254,"endHours":14.362657866789254,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:22","end":"15:22","startHours":14.362657866789254,"endHours":15.362657866789254,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:22","end":"16:22","startHours":15.362657866789254,"endHours":16.362657866789256,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:22","end":"17:22","startHours":16.362657866789256,"endHours":17.362657866789256,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:22","end":"18:22","startHours":17.362657866789256,"endHours":18.362657866789256,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:22","end":"19:22","startHours":18.362657866789256,"endHours":19.362657866789256,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:22","end":"20:22","startHours":19.362657866789256,"endHours":20.362657866789256,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:22","end":"21:22","startHours":20.362657866789256,"endHours":21.362657866789256,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:22","end":"22:22","startHours":21.362657866789256,"endHours":22.362657866789256,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:22","end":"23:22","startHours":22.362657866789256,"endHours":23.362657866789256,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:22","end":"00:22","startHours":23.362657866789256,"endHours":24.362657866789256,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:22","end":"01:22","startHours":24.362657866789256,"endHours":25.362657866789256,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:22","end":"02:22","startHours":25.362657866789256,"endHours":26.362657866789256,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:22","end":"03:22","startHours":26.362657866789256,"endHours":27.362657866789256,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:22","end":"04:22","startHours":27.362657866789256,"endHours":28.362657866789256,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:22","end":"05:22","startHours":28.362657866789256,"endHours":29.362657866789256,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"South-West","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"drikRitu":"Grīṣma (Summer) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":22.500800378667613,"eotMinutes":-4.678375173651213,"ayanamsa":23.5948}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Śukla Pakṣa","solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Śukla Saptamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"mithuna-sankranti","name":"Mithuna Saṅkrānti","name_sanskrit":"मिथुन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Gemini.","vrata":false,"detection":{"sun_rashi":"Mithuna"},"precedence":5}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 July 8, 1981 CE · Ṛṣikeśa · Vidhyamitra","description":"July 8, 1981 CE for Ṛṣikeśa: Śukla Saptamī, sūryodaya 05:22, sūryāsta 19:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1981-07-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1981-07-08","sa":"https://sa.vidhyamitra.com/city/rishikesh/1981-07-08","hi":"https://hi.vidhyamitra.com/city/rishikesh/1981-07-08","x-default":"https://vidhyamitra.com/city/rishikesh/1981-07-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T23:12:43.172Z","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":"2026-05-18T23:12:43.172Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T23:12:43.172Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}