{"id":"vidhyamitra:city-day:rishikesh:1990-10-26:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1990-10-26","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-10-26","date_display":"October 26, 1990 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":1990,"month":10,"day":26,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448190.770833,"kali_year":5092,"ahargana":1859725.2708,"sun":{"sidereal_longitude":187.9504,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":272.6562,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":84.7058,"elapsed_within_tithi_degrees":0.7058},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":272.6562,"elapsed_within_degrees":5.9896},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":100.6066},"karana":{"half_tithi_index":14,"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":1990,"month":10,"day":26,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2448190.770833,"ahargana":1859725.2708,"kali_year":5092,"ayanamsa_lahiri":23.7247,"grahas":{"sun":{"sidereal_longitude":188.63516700000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":269.613867,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false,"latitude":-0.7922},"mars":{"sidereal_longitude":50.75576699999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":191.20236699999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":107.88426700000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":187.096367,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":265.68536700000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":282.8055,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":102.8055,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":1990,"month":10,"day":26,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448190.770833,"kali_year":5092,"ahargana":1859725.2708,"sun":{"sidereal_longitude":187.9504,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":272.6562,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":84.7058,"elapsed_within_tithi_degrees":0.7058},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":272.6562,"elapsed_within_degrees":5.9896},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":100.6066},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.792,"elongation":84.706},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.792,"opposition_distance":95.294}},"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":"17:36","solarNoonLocal":"12:01","dayLengthHours":11.165375673534449,"dayLengthDisplay":"11 Hours 09 Mins 55 Secs","nightLengthDisplay":"12 Hours 50 Mins 05 Secs","moonriseLocal":"12:14","moonsetLocal":"22:35","rahuKala":{"name":"Rāhu Kāla","start":"10:37","end":"12:01","startHours":10.614751044302302,"endHours":12.010423003494108,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:48","end":"16:12","startHours":14.80176692187772,"endHours":16.197438881069527,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:49","end":"09:13","startHours":7.823407125918689,"endHours":9.219079085110495,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:02","end":"09:24","startHours":9.032989490551588,"endHours":9.405168679669403,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:54","end":"07:11","startHours":6.892959153124152,"endHours":7.190702504418404,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:38","end":"12:23","startHours":11.638243814376292,"endHours":12.382602192611923,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:56","end":"05:41","startHours":4.939018410255623,"endHours":5.683376788491254,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:30","end":"06:26","startHours":5.497287193932346,"endHours":6.427735166726883,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:52","end":"14:37","startHours":13.871318949083182,"endHours":14.615677327318812,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:24","end":"17:48","startHours":17.393110840261333,"endHours":17.79311084026133,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:36","end":"18:04","startHours":17.593110840261332,"endHours":18.0583348266586,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:21","end":"19:06","startHours":17.343110840261332,"endHours":19.093110840261332,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:38","end":"00:23","startHours":23.638243814376292,"endHours":24.382602192611923,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:26","end":"07:49","startHours":6.427735166726883,"endHours":7.823407125918689,"quality":"neutral"},{"name":"Labha","start":"07:49","end":"09:13","startHours":7.823407125918689,"endHours":9.219079085110495,"quality":"auspicious"},{"name":"Amṛta","start":"09:13","end":"10:37","startHours":9.219079085110495,"endHours":10.614751044302302,"quality":"auspicious"},{"name":"Kāla","start":"10:37","end":"12:01","startHours":10.614751044302302,"endHours":12.010423003494108,"quality":"inauspicious"},{"name":"Śubha","start":"12:01","end":"13:24","startHours":12.010423003494108,"endHours":13.406094962685913,"quality":"auspicious"},{"name":"Roga","start":"13:24","end":"14:48","startHours":13.406094962685913,"endHours":14.80176692187772,"quality":"inauspicious"},{"name":"Udveg","start":"14:48","end":"16:12","startHours":14.80176692187772,"endHours":16.197438881069527,"quality":"inauspicious"},{"name":"Chala","start":"16:12","end":"17:36","startHours":16.197438881069527,"endHours":17.593110840261332,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:36","end":"19:12","startHours":17.593110840261332,"endHours":19.197438881069527,"quality":"inauspicious"},{"name":"Udveg","start":"19:12","end":"20:48","startHours":19.197438881069527,"endHours":20.80176692187772,"quality":"inauspicious"},{"name":"Chala","start":"20:48","end":"22:24","startHours":20.80176692187772,"endHours":22.406094962685913,"quality":"neutral"},{"name":"Labha","start":"22:24","end":"00:01","startHours":22.406094962685913,"endHours":24.010423003494108,"quality":"auspicious"},{"name":"Amṛta","start":"00:01","end":"01:37","startHours":24.010423003494108,"endHours":25.614751044302302,"quality":"auspicious"},{"name":"Kāla","start":"01:37","end":"03:13","startHours":25.614751044302302,"endHours":27.219079085110494,"quality":"inauspicious"},{"name":"Śubha","start":"03:13","end":"04:49","startHours":27.219079085110494,"endHours":28.82340712591869,"quality":"auspicious"},{"name":"Roga","start":"04:49","end":"06:26","startHours":28.82340712591869,"endHours":30.427735166726883,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:26","end":"07:26","startHours":6.427735166726883,"endHours":7.427735166726883,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:26","end":"08:26","startHours":7.427735166726883,"endHours":8.427735166726883,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:26","end":"09:26","startHours":8.427735166726883,"endHours":9.427735166726883,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:26","end":"10:26","startHours":9.427735166726883,"endHours":10.427735166726883,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:26","end":"11:26","startHours":10.427735166726883,"endHours":11.427735166726883,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:26","end":"12:26","startHours":11.427735166726883,"endHours":12.427735166726883,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:26","end":"13:26","startHours":12.427735166726883,"endHours":13.427735166726883,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:26","end":"14:26","startHours":13.427735166726883,"endHours":14.427735166726883,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:26","end":"15:26","startHours":14.427735166726883,"endHours":15.427735166726883,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:26","end":"16:26","startHours":15.427735166726883,"endHours":16.427735166726883,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:26","end":"17:26","startHours":16.427735166726883,"endHours":17.427735166726883,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:26","end":"18:26","startHours":17.427735166726883,"endHours":18.427735166726883,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:26","end":"19:26","startHours":18.427735166726883,"endHours":19.427735166726883,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:26","end":"20:26","startHours":19.427735166726883,"endHours":20.427735166726883,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:26","end":"21:26","startHours":20.427735166726883,"endHours":21.427735166726883,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:26","end":"22:26","startHours":21.427735166726883,"endHours":22.427735166726883,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:26","end":"23:26","startHours":22.427735166726883,"endHours":23.427735166726883,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:26","end":"00:26","startHours":23.427735166726883,"endHours":24.427735166726883,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:26","end":"01:26","startHours":24.427735166726883,"endHours":25.427735166726883,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:26","end":"02:26","startHours":25.427735166726883,"endHours":26.427735166726883,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:26","end":"03:26","startHours":26.427735166726883,"endHours":27.427735166726883,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:26","end":"04:26","startHours":27.427735166726883,"endHours":28.427735166726883,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:26","end":"05:26","startHours":28.427735166726883,"endHours":29.427735166726883,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:26","end":"06:26","startHours":29.427735166726883,"endHours":30.427735166726883,"planetary_lord":"Mars"}],"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":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"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":-12.29120665979598,"eotMinutes":16.304219790353635,"ayanamsa":23.7247}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Śukla Pakṣa","solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Śukla Aṣṭamī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"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":"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":[{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","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 26, 1990 CE · Ṛṣikeśa · Vidhyamitra","description":"October 26, 1990 CE for Ṛṣikeśa: Śukla Aṣṭamī, sūryodaya 06:26, sūryāsta 17:36.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1990-10-26","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1990-10-26","sa":"https://sa.vidhyamitra.com/city/rishikesh/1990-10-26","hi":"https://hi.vidhyamitra.com/city/rishikesh/1990-10-26","x-default":"https://vidhyamitra.com/city/rishikesh/1990-10-26"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T17:26:11.105Z","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":"2026-05-17T17:26:11.105Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T17:26:11.105Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}