{"id":"vidhyamitra:city-day:rishikesh:1989-02-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1989-02-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1989-02-04","date_display":"February 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":2,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447561.770833,"kali_year":5090,"ahargana":1859096.2708,"sun":{"sidereal_longitude":291.5642,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":260.9996,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":329.4354,"elapsed_within_tithi_degrees":5.4354},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3,"moon_longitude":260.9996,"elapsed_within_degrees":7.6663},"yoga":{"number":15,"name":"Vajra","sum_longitude":192.5639},"karana":{"half_tithi_index":54,"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":1989,"month":2,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447561.770833,"ahargana":1859096.2708,"kali_year":5090,"ayanamsa_lahiri":23.7007,"grahas":{"sun":{"sidereal_longitude":291.500399,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"moon":{"sidereal_longitude":260.95709899999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false,"latitude":-3.6909},"mars":{"sidereal_longitude":15.40629899999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":272.56369900000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":33.20459900000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":276.87559899999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":255.43859899999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":316.133,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":136.133,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":1989,"month":2,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447561.770833,"kali_year":5090,"ahargana":1859096.2708,"sun":{"sidereal_longitude":291.5642,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":260.9996,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":329.4354,"elapsed_within_tithi_degrees":5.4354},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3,"moon_longitude":260.9996,"elapsed_within_degrees":7.6663},"yoga":{"number":15,"name":"Vajra","sum_longitude":192.5639},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.691,"elongation":30.565},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.691,"opposition_distance":149.435}},"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":"07:06","sunsetLocal":"17:56","solarNoonLocal":"12:31","dayLengthHours":10.83703122693835,"dayLengthDisplay":"10 Hours 50 Mins 13 Secs","nightLengthDisplay":"13 Hours 09 Mins 47 Secs","moonriseLocal":"05:22","moonsetLocal":"15:36","rahuKala":{"name":"Rāhu Kāla","start":"09:48","end":"11:10","startHours":9.807764266065302,"endHours":11.162393169432598,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:52","end":"15:14","startHours":13.871650976167185,"endHours":15.226279879534477,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:06","end":"08:27","startHours":7.098506459330715,"endHours":8.45313536269801,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"09:59","startHours":9.627147078949664,"endHours":9.988381453180942,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:33","end":"07:50","startHours":7.550049427119813,"endHours":7.839036926504836,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:53","startHours":12.155787698568611,"endHours":12.878256447031168,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:39","end":"06:23","startHours":5.653568962405602,"endHours":6.376037710868158,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:12","end":"07:06","startHours":6.195420523752519,"endHours":7.098506459330715,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:19","end":"15:03","startHours":14.323193943956284,"endHours":15.04566269241884,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:44","end":"18:08","startHours":17.735537686269065,"endHours":18.135537686269064,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:56","end":"18:23","startHours":17.935537686269065,"endHours":18.387080654058163,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:41","end":"19:26","startHours":17.685537686269065,"endHours":19.435537686269065,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:53","startHours":24.155787698568613,"endHours":24.878256447031166,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:06","end":"08:27","startHours":7.098506459330715,"endHours":8.45313536269801,"quality":"inauspicious"},{"name":"Śubha","start":"08:27","end":"09:48","startHours":8.45313536269801,"endHours":9.807764266065302,"quality":"auspicious"},{"name":"Roga","start":"09:48","end":"11:10","startHours":9.807764266065302,"endHours":11.162393169432598,"quality":"inauspicious"},{"name":"Udveg","start":"11:10","end":"12:31","startHours":11.162393169432598,"endHours":12.51702207279989,"quality":"inauspicious"},{"name":"Chala","start":"12:31","end":"13:52","startHours":12.51702207279989,"endHours":13.871650976167185,"quality":"neutral"},{"name":"Labha","start":"13:52","end":"15:14","startHours":13.871650976167185,"endHours":15.226279879534477,"quality":"auspicious"},{"name":"Amṛta","start":"15:14","end":"16:35","startHours":15.226279879534477,"endHours":16.580908782901773,"quality":"auspicious"},{"name":"Kāla","start":"16:35","end":"17:56","startHours":16.580908782901773,"endHours":17.935537686269065,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:56","end":"19:35","startHours":17.935537686269065,"endHours":19.580908782901773,"quality":"auspicious"},{"name":"Amṛta","start":"19:35","end":"21:14","startHours":19.580908782901773,"endHours":21.226279879534477,"quality":"auspicious"},{"name":"Kāla","start":"21:14","end":"22:52","startHours":21.226279879534477,"endHours":22.87165097616718,"quality":"inauspicious"},{"name":"Śubha","start":"22:52","end":"00:31","startHours":22.87165097616718,"endHours":24.51702207279989,"quality":"auspicious"},{"name":"Roga","start":"00:31","end":"02:10","startHours":24.51702207279989,"endHours":26.162393169432598,"quality":"inauspicious"},{"name":"Udveg","start":"02:10","end":"03:48","startHours":26.162393169432598,"endHours":27.807764266065302,"quality":"inauspicious"},{"name":"Chala","start":"03:48","end":"05:27","startHours":27.807764266065302,"endHours":29.453135362698006,"quality":"neutral"},{"name":"Labha","start":"05:27","end":"07:06","startHours":29.453135362698006,"endHours":31.098506459330714,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:06","end":"08:06","startHours":7.098506459330715,"endHours":8.098506459330714,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:06","end":"09:06","startHours":8.098506459330714,"endHours":9.098506459330714,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:06","end":"10:06","startHours":9.098506459330714,"endHours":10.098506459330714,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:06","end":"11:06","startHours":10.098506459330714,"endHours":11.098506459330714,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:06","end":"12:06","startHours":11.098506459330714,"endHours":12.098506459330714,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:06","end":"13:06","startHours":12.098506459330714,"endHours":13.098506459330714,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:06","end":"14:06","startHours":13.098506459330714,"endHours":14.098506459330714,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:06","end":"15:06","startHours":14.098506459330714,"endHours":15.098506459330714,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:06","end":"16:06","startHours":15.098506459330714,"endHours":16.098506459330714,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:06","end":"17:06","startHours":16.098506459330714,"endHours":17.098506459330714,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:06","end":"18:06","startHours":17.098506459330714,"endHours":18.098506459330714,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:06","end":"19:06","startHours":18.098506459330714,"endHours":19.098506459330714,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:06","end":"20:06","startHours":19.098506459330714,"endHours":20.098506459330714,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:06","end":"21:06","startHours":20.098506459330714,"endHours":21.098506459330714,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:06","end":"22:06","startHours":21.098506459330714,"endHours":22.098506459330714,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:06","end":"23:06","startHours":22.098506459330714,"endHours":23.098506459330714,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:06","end":"00:06","startHours":23.098506459330714,"endHours":24.098506459330714,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:06","end":"01:06","startHours":24.098506459330714,"endHours":25.098506459330714,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:06","end":"02:06","startHours":25.098506459330714,"endHours":26.098506459330714,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:06","end":"03:06","startHours":26.098506459330714,"endHours":27.098506459330714,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:06","end":"04:06","startHours":27.098506459330714,"endHours":28.098506459330714,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:06","end":"05:06","startHours":28.098506459330714,"endHours":29.098506459330714,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:06","end":"06:06","startHours":29.098506459330714,"endHours":30.098506459330714,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:06","end":"07:06","startHours":30.098506459330714,"endHours":31.098506459330714,"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"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-16.275155011727694,"eotMinutes":-14.091724367993354,"ayanamsa":23.7007}},"calendars":{"vikram_samvat":2046,"vikram_samvatsara":"Citrabhānu","saka_samvat":1911,"saka_samvatsara":"Śukla","bengali_samvat":1396,"malayalam_era":1165,"nanakshahi_year":520,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Trayodaśī · Vikram 2046 Citrabhānu · Śaka 1911 Śukla"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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 February 4, 1989 CE · Ṛṣikeśa · Vidhyamitra","description":"February 4, 1989 CE for Ṛṣikeśa: Kṛṣṇa Trayodaśī, sūryodaya 07:06, sūryāsta 17:56.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1989-02-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1989-02-04","sa":"https://sa.vidhyamitra.com/city/rishikesh/1989-02-04","hi":"https://hi.vidhyamitra.com/city/rishikesh/1989-02-04","x-default":"https://vidhyamitra.com/city/rishikesh/1989-02-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T12:19:32.970Z","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":"2026-06-01T12:19:32.970Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T12:19:32.970Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}