{"id":"vidhyamitra:city-day:rishikesh:1989-09-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1989-09-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1989-09-04","date_display":"September 4, 1989 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":1989,"month":9,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447773.770833,"kali_year":5091,"ahargana":1859308.2708,"sun":{"sidereal_longitude":137.1126,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":182.6755,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":45.5629,"elapsed_within_tithi_degrees":9.5629},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":182.6755,"elapsed_within_degrees":9.3422},"yoga":{"number":24,"name":"Śukla","sum_longitude":319.7882},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1989,"month":9,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447773.770833,"ahargana":1859308.2708,"kali_year":5091,"ayanamsa_lahiri":23.7088,"grahas":{"sun":{"sidereal_longitude":137.785299,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":179.658099,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false,"latitude":-3.8057},"mars":{"sidereal_longitude":146.36329899999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":164.37119899999993,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":72.891299,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":176.52429899999993,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":253.40409899999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":304.9002,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":124.9002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"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":1989,"month":9,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447773.770833,"kali_year":5091,"ahargana":1859308.2708,"sun":{"sidereal_longitude":137.1126,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":182.6755,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":45.5629,"elapsed_within_tithi_degrees":9.5629},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":182.6755,"elapsed_within_degrees":9.3422},"yoga":{"number":24,"name":"Śukla","sum_longitude":319.7882},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.806,"elongation":45.563},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.806,"opposition_distance":134.437}},"eclipse_window_40days":[{"offset_days":-18,"type":"lunar","occurs":true,"moon_latitude":-0.662,"opposition_distance":2.433},{"offset_days":-4,"type":"solar","occurs":true,"moon_latitude":-0.58,"elongation":0.729}]},"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":"05:55","sunsetLocal":"18:36","solarNoonLocal":"12:15","dayLengthHours":12.69360623802001,"dayLengthDisplay":"12 Hours 41 Mins 37 Secs","nightLengthDisplay":"11 Hours 18 Mins 23 Secs","moonriseLocal":"09:21","moonsetLocal":"20:44","rahuKala":{"name":"Rāhu Kāla","start":"07:30","end":"09:05","startHours":7.497093725788228,"endHours":9.08379450554073,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:40","end":"12:15","startHours":10.670495285293232,"endHours":12.257196065045733,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:51","end":"15:26","startHours":13.843896844798234,"endHours":15.430597624550735,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:18","startHours":8.87223440157373,"endHours":9.29535460950773,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:26","end":"06:47","startHours":6.439293205953227,"endHours":6.777789372300427,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:41","startHours":11.834075857111733,"endHours":12.680316272979733,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:13","end":"05:04","startHours":4.217912114299725,"endHours":5.064152530167727,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:51","end":"05:55","startHours":4.852592426200726,"endHours":5.910392946035727,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:13","startHours":14.372797104715733,"endHours":15.219037520583734,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:24","end":"18:48","startHours":18.40399918405574,"endHours":18.803999184055737,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:36","end":"19:08","startHours":18.603999184055738,"endHours":19.132899443973237,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:21","end":"20:06","startHours":18.353999184055738,"endHours":20.103999184055738,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:41","startHours":23.83407585711173,"endHours":24.680316272979734,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:55","end":"07:30","startHours":5.910392946035727,"endHours":7.497093725788228,"quality":"auspicious"},{"name":"Kāla","start":"07:30","end":"09:05","startHours":7.497093725788228,"endHours":9.08379450554073,"quality":"inauspicious"},{"name":"Śubha","start":"09:05","end":"10:40","startHours":9.08379450554073,"endHours":10.670495285293232,"quality":"auspicious"},{"name":"Roga","start":"10:40","end":"12:15","startHours":10.670495285293232,"endHours":12.257196065045733,"quality":"inauspicious"},{"name":"Udveg","start":"12:15","end":"13:51","startHours":12.257196065045733,"endHours":13.843896844798234,"quality":"inauspicious"},{"name":"Chala","start":"13:51","end":"15:26","startHours":13.843896844798234,"endHours":15.430597624550735,"quality":"neutral"},{"name":"Labha","start":"15:26","end":"17:01","startHours":15.430597624550735,"endHours":17.017298404303236,"quality":"auspicious"},{"name":"Amṛta","start":"17:01","end":"18:36","startHours":17.017298404303236,"endHours":18.603999184055738,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:36","end":"20:01","startHours":18.603999184055738,"endHours":20.017298404303236,"quality":"neutral"},{"name":"Labha","start":"20:01","end":"21:26","startHours":20.017298404303236,"endHours":21.430597624550735,"quality":"auspicious"},{"name":"Amṛta","start":"21:26","end":"22:51","startHours":21.430597624550735,"endHours":22.843896844798234,"quality":"auspicious"},{"name":"Kāla","start":"22:51","end":"00:15","startHours":22.843896844798234,"endHours":24.257196065045733,"quality":"inauspicious"},{"name":"Śubha","start":"00:15","end":"01:40","startHours":24.257196065045733,"endHours":25.67049528529323,"quality":"auspicious"},{"name":"Roga","start":"01:40","end":"03:05","startHours":25.67049528529323,"endHours":27.08379450554073,"quality":"inauspicious"},{"name":"Udveg","start":"03:05","end":"04:30","startHours":27.08379450554073,"endHours":28.49709372578823,"quality":"inauspicious"},{"name":"Chala","start":"04:30","end":"05:55","startHours":28.49709372578823,"endHours":29.910392946035728,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:55","end":"06:55","startHours":5.910392946035727,"endHours":6.910392946035727,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:55","end":"07:55","startHours":6.910392946035727,"endHours":7.910392946035727,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:55","end":"08:55","startHours":7.910392946035727,"endHours":8.910392946035728,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:55","end":"09:55","startHours":8.910392946035728,"endHours":9.910392946035728,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:55","end":"10:55","startHours":9.910392946035728,"endHours":10.910392946035728,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:55","end":"11:55","startHours":10.910392946035728,"endHours":11.910392946035728,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:55","end":"12:55","startHours":11.910392946035728,"endHours":12.910392946035728,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:55","end":"13:55","startHours":12.910392946035728,"endHours":13.910392946035728,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:55","end":"14:55","startHours":13.910392946035728,"endHours":14.910392946035728,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:55","end":"15:55","startHours":14.910392946035728,"endHours":15.910392946035728,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:55","end":"16:55","startHours":15.910392946035728,"endHours":16.910392946035728,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:55","end":"17:55","startHours":16.910392946035728,"endHours":17.910392946035728,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:55","end":"18:55","startHours":17.910392946035728,"endHours":18.910392946035728,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:55","end":"19:55","startHours":18.910392946035728,"endHours":19.910392946035728,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:55","end":"20:55","startHours":19.910392946035728,"endHours":20.910392946035728,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:55","end":"21:55","startHours":20.910392946035728,"endHours":21.910392946035728,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:55","end":"22:55","startHours":21.910392946035728,"endHours":22.910392946035728,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:55","end":"23:55","startHours":22.910392946035728,"endHours":23.910392946035728,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:55","end":"00:55","startHours":23.910392946035728,"endHours":24.910392946035728,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:55","end":"01:55","startHours":24.910392946035728,"endHours":25.910392946035728,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:55","end":"02:55","startHours":25.910392946035728,"endHours":26.910392946035728,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:55","end":"03:55","startHours":26.910392946035728,"endHours":27.910392946035728,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:55","end":"04:55","startHours":27.910392946035728,"endHours":28.910392946035728,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:55","end":"05:55","startHours":28.910392946035728,"endHours":29.910392946035728,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":7.252439599680118,"eotMinutes":1.4978360972560227,"ayanamsa":23.7088}},"calendars":{"vikram_samvat":2046,"vikram_samvatsara":"Citrabhānu","saka_samvat":1911,"saka_samvatsara":"Śukla","bengali_samvat":1396,"malayalam_era":1165,"nanakshahi_year":520,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Caturthī · Vikram 2046 Citrabhānu · Śaka 1911 Śukla"},"festivals":[{"id":"ganesha-chaturthi","name":"Gaṇeśa Caturthī","name_sanskrit":"गणेश चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Gaṇeśa's birth day; 11-day festival in Maharashtra.","vrata":false,"detection":{"tithi_number":4,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":1},{"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":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 September 4, 1989 CE · Ṛṣikeśa · Vidhyamitra","description":"September 4, 1989 CE for Ṛṣikeśa: Śukla Caturthī, sūryodaya 05:55, sūryāsta 18:36.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1989-09-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1989-09-04","sa":"https://sa.vidhyamitra.com/city/rishikesh/1989-09-04","hi":"https://hi.vidhyamitra.com/city/rishikesh/1989-09-04","x-default":"https://vidhyamitra.com/city/rishikesh/1989-09-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T01:56:20.421Z","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":"2026-06-03T01:56:20.421Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T01:56:20.421Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}