{"id":"vidhyamitra:city-day:rishikesh:1990-01-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1990-01-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-01-06","date_display":"January 6, 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":1,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447897.770833,"kali_year":5091,"ahargana":1859432.2708,"sun":{"sidereal_longitude":261.571,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":14.4565,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":112.8855,"elapsed_within_tithi_degrees":4.8855},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":14.4565,"elapsed_within_degrees":1.1232},"yoga":{"number":21,"name":"Siddha","sum_longitude":276.0276},"karana":{"half_tithi_index":18,"name":"Taitila"},"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":1990,"month":1,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447897.770833,"ahargana":1859432.2708,"kali_year":5091,"ayanamsa_lahiri":23.7135,"grahas":{"sun":{"sidereal_longitude":261.73706100000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":12.756461000000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false,"latitude":4.3685},"mars":{"sidereal_longitude":229.623061,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":268.81356099999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":71.00366099999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":281.57806099999993,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":262.2511609999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":298.3301,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":118.3301,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4},"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":1,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447897.770833,"kali_year":5091,"ahargana":1859432.2708,"sun":{"sidereal_longitude":261.571,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":14.4565,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":112.8855,"elapsed_within_tithi_degrees":4.8855},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":14.4565,"elapsed_within_degrees":1.1232},"yoga":{"number":21,"name":"Siddha","sum_longitude":276.0276},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.368,"elongation":112.886},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.368,"opposition_distance":67.114}},"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":"07:14","sunsetLocal":"17:31","solarNoonLocal":"12:23","dayLengthHours":10.287529210348008,"dayLengthDisplay":"10 Hours 17 Mins 15 Secs","nightLengthDisplay":"13 Hours 42 Mins 45 Secs","moonriseLocal":"13:12","moonsetLocal":"02:22","rahuKala":{"name":"Rāhu Kāla","start":"09:48","end":"11:06","startHours":9.808204715862562,"endHours":11.094145867156064,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:40","end":"14:57","startHours":13.666028169743065,"endHours":14.951969321036566,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:14","end":"08:31","startHours":7.23632241327556,"endHours":8.52226356456906,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"09:59","startHours":9.636745895690096,"endHours":9.979663536035028,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:40","end":"07:56","startHours":7.664969463706727,"endHours":7.939303575982675,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:43","startHours":12.037169378104629,"endHours":12.723004658794498,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:52","end":"06:33","startHours":5.864651851895825,"endHours":6.550487132585693,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:23","end":"07:14","startHours":6.379028312413226,"endHours":7.23632241327556,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:06","end":"14:47","startHours":14.094675220174231,"endHours":14.780510500864098,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:19","end":"17:43","startHours":17.32385162362357,"endHours":17.723851623623567,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:31","end":"17:57","startHours":17.523851623623568,"endHours":17.952498674054734,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:16","end":"19:01","startHours":17.273851623623568,"endHours":19.023851623623568,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:43","startHours":24.037169378104633,"endHours":24.723004658794498,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:14","end":"08:31","startHours":7.23632241327556,"endHours":8.52226356456906,"quality":"inauspicious"},{"name":"Śubha","start":"08:31","end":"09:48","startHours":8.52226356456906,"endHours":9.808204715862562,"quality":"auspicious"},{"name":"Roga","start":"09:48","end":"11:06","startHours":9.808204715862562,"endHours":11.094145867156064,"quality":"inauspicious"},{"name":"Udveg","start":"11:06","end":"12:23","startHours":11.094145867156064,"endHours":12.380087018449565,"quality":"inauspicious"},{"name":"Chala","start":"12:23","end":"13:40","startHours":12.380087018449565,"endHours":13.666028169743065,"quality":"neutral"},{"name":"Labha","start":"13:40","end":"14:57","startHours":13.666028169743065,"endHours":14.951969321036566,"quality":"auspicious"},{"name":"Amṛta","start":"14:57","end":"16:14","startHours":14.951969321036566,"endHours":16.237910472330068,"quality":"auspicious"},{"name":"Kāla","start":"16:14","end":"17:31","startHours":16.237910472330068,"endHours":17.523851623623568,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:31","end":"19:14","startHours":17.523851623623568,"endHours":19.237910472330068,"quality":"auspicious"},{"name":"Amṛta","start":"19:14","end":"20:57","startHours":19.237910472330068,"endHours":20.951969321036565,"quality":"auspicious"},{"name":"Kāla","start":"20:57","end":"22:40","startHours":20.951969321036565,"endHours":22.666028169743065,"quality":"inauspicious"},{"name":"Śubha","start":"22:40","end":"00:23","startHours":22.666028169743065,"endHours":24.380087018449565,"quality":"auspicious"},{"name":"Roga","start":"00:23","end":"02:06","startHours":24.380087018449565,"endHours":26.09414586715606,"quality":"inauspicious"},{"name":"Udveg","start":"02:06","end":"03:48","startHours":26.09414586715606,"endHours":27.808204715862562,"quality":"inauspicious"},{"name":"Chala","start":"03:48","end":"05:31","startHours":27.808204715862562,"endHours":29.52226356456906,"quality":"neutral"},{"name":"Labha","start":"05:31","end":"07:14","startHours":29.52226356456906,"endHours":31.23632241327556,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:14","end":"08:14","startHours":7.23632241327556,"endHours":8.236322413275559,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:14","end":"09:14","startHours":8.236322413275559,"endHours":9.236322413275559,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:14","end":"10:14","startHours":9.236322413275559,"endHours":10.236322413275559,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:14","end":"11:14","startHours":10.236322413275559,"endHours":11.236322413275559,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:14","end":"12:14","startHours":11.236322413275559,"endHours":12.236322413275559,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:14","end":"13:14","startHours":12.236322413275559,"endHours":13.236322413275559,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:14","end":"14:14","startHours":13.236322413275559,"endHours":14.236322413275559,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:14","end":"15:14","startHours":14.236322413275559,"endHours":15.236322413275559,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:14","end":"16:14","startHours":15.236322413275559,"endHours":16.23632241327556,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:14","end":"17:14","startHours":16.23632241327556,"endHours":17.23632241327556,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:14","end":"18:14","startHours":17.23632241327556,"endHours":18.23632241327556,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:14","end":"19:14","startHours":18.23632241327556,"endHours":19.23632241327556,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:14","end":"20:14","startHours":19.23632241327556,"endHours":20.23632241327556,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:14","end":"21:14","startHours":20.23632241327556,"endHours":21.23632241327556,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:14","end":"22:14","startHours":21.23632241327556,"endHours":22.23632241327556,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:14","end":"23:14","startHours":22.23632241327556,"endHours":23.23632241327556,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:14","end":"00:14","startHours":23.23632241327556,"endHours":24.23632241327556,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:14","end":"01:14","startHours":24.23632241327556,"endHours":25.23632241327556,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:14","end":"02:14","startHours":25.23632241327556,"endHours":26.23632241327556,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:14","end":"03:14","startHours":26.23632241327556,"endHours":27.23632241327556,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:14","end":"04:14","startHours":27.23632241327556,"endHours":28.23632241327556,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:14","end":"05:14","startHours":28.23632241327556,"endHours":29.23632241327556,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:14","end":"06:14","startHours":29.23632241327556,"endHours":30.23632241327556,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:14","end":"07:14","startHours":30.23632241327556,"endHours":31.23632241327556,"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-22.541883052816917,"eotMinutes":-5.875621106973772,"ayanamsa":23.7135}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Daśamī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"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 January 6, 1990 CE · Ṛṣikeśa · Vidhyamitra","description":"January 6, 1990 CE for Ṛṣikeśa: Śukla Daśamī, sūryodaya 07:14, sūryāsta 17:31.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1990-01-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1990-01-06","sa":"https://sa.vidhyamitra.com/city/rishikesh/1990-01-06","hi":"https://hi.vidhyamitra.com/city/rishikesh/1990-01-06","x-default":"https://vidhyamitra.com/city/rishikesh/1990-01-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T23:10:46.129Z","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":"2026-05-17T23:10:46.129Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T23:10:46.129Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}