{"id":"vidhyamitra:city-day:rishikesh:1990-07-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1990-07-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-07-18","date_display":"July 18, 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":7,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448090.770833,"kali_year":5092,"ahargana":1859625.2708,"sun":{"sidereal_longitude":91.029,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":37.6794,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":306.6505,"elapsed_within_tithi_degrees":6.6505},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":37.6794,"elapsed_within_degrees":11.0127},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":128.7084},"karana":{"half_tithi_index":51,"name":"Bālava"},"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":1990,"month":7,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2448090.770833,"ahargana":1859625.2708,"kali_year":5092,"ayanamsa_lahiri":23.7209,"grahas":{"sun":{"sidereal_longitude":91.45428700000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"moon":{"sidereal_longitude":35.84898700000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false,"latitude":4.2394},"mars":{"sidereal_longitude":9.979086999999993,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":107.85718700000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":89.431287,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"venus":{"sidereal_longitude":63.87498700000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":267.8552870000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":288.104,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":108.104,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":1990,"month":7,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448090.770833,"kali_year":5092,"ahargana":1859625.2708,"sun":{"sidereal_longitude":91.029,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":37.6794,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":306.6505,"elapsed_within_tithi_degrees":6.6505},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":37.6794,"elapsed_within_degrees":11.0127},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":128.7084},"karana":{"half_tithi_index":51,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.239,"elongation":53.35},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.239,"opposition_distance":126.65}},"eclipse_window_40days":[{"offset_days":4,"type":"solar","occurs":true,"moon_latitude":0.982,"elongation":0.451}]},"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":"05:27","sunsetLocal":"19:19","solarNoonLocal":"12:23","dayLengthHours":13.863654057054049,"dayLengthDisplay":"13 Hours 51 Mins 49 Secs","nightLengthDisplay":"10 Hours 08 Mins 11 Secs","moonriseLocal":"01:49","moonsetLocal":"15:32","rahuKala":{"name":"Rāhu Kāla","start":"12:23","end":"14:07","startHours":12.379758602008483,"endHours":14.112715359140239,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:11","end":"08:55","startHours":7.180888330613215,"endHours":8.91384508774497,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:39","end":"12:23","startHours":10.646801844876727,"endHours":12.379758602008483,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:41","end":"09:09","startHours":8.68278418679407,"endHours":9.144905988695871,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:02","end":"06:24","startHours":6.025583825858711,"endHours":6.3952812673801525,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:51","startHours":11.917636800106681,"endHours":12.841880403910285,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:36","end":"04:31","startHours":3.5994443658742528,"endHours":4.523687969677856,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:18","end":"05:27","startHours":4.292627068726955,"endHours":5.447931573481459,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:41","end":"15:37","startHours":14.690367611517491,"endHours":15.614611215321094,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:07","end":"19:31","startHours":19.111585630535508,"endHours":19.511585630535507,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:19","end":"19:53","startHours":19.311585630535507,"endHours":19.88923788291276,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:04","end":"20:49","startHours":19.061585630535507,"endHours":20.811585630535507,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:51","startHours":23.91763680010668,"endHours":24.841880403910285,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:27","end":"07:11","startHours":5.447931573481459,"endHours":7.180888330613215,"quality":"auspicious"},{"name":"Amṛta","start":"07:11","end":"08:55","startHours":7.180888330613215,"endHours":8.91384508774497,"quality":"auspicious"},{"name":"Kāla","start":"08:55","end":"10:39","startHours":8.91384508774497,"endHours":10.646801844876727,"quality":"inauspicious"},{"name":"Śubha","start":"10:39","end":"12:23","startHours":10.646801844876727,"endHours":12.379758602008483,"quality":"auspicious"},{"name":"Roga","start":"12:23","end":"14:07","startHours":12.379758602008483,"endHours":14.112715359140239,"quality":"inauspicious"},{"name":"Udveg","start":"14:07","end":"15:51","startHours":14.112715359140239,"endHours":15.845672116271995,"quality":"inauspicious"},{"name":"Chala","start":"15:51","end":"17:35","startHours":15.845672116271995,"endHours":17.57862887340375,"quality":"neutral"},{"name":"Labha","start":"17:35","end":"19:19","startHours":17.57862887340375,"endHours":19.311585630535507,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:19","end":"20:35","startHours":19.311585630535507,"endHours":20.57862887340375,"quality":"inauspicious"},{"name":"Chala","start":"20:35","end":"21:51","startHours":20.57862887340375,"endHours":21.845672116271995,"quality":"neutral"},{"name":"Labha","start":"21:51","end":"23:07","startHours":21.845672116271995,"endHours":23.11271535914024,"quality":"auspicious"},{"name":"Amṛta","start":"23:07","end":"00:23","startHours":23.11271535914024,"endHours":24.379758602008483,"quality":"auspicious"},{"name":"Kāla","start":"00:23","end":"01:39","startHours":24.379758602008483,"endHours":25.646801844876727,"quality":"inauspicious"},{"name":"Śubha","start":"01:39","end":"02:55","startHours":25.646801844876727,"endHours":26.91384508774497,"quality":"auspicious"},{"name":"Roga","start":"02:55","end":"04:11","startHours":26.91384508774497,"endHours":28.180888330613215,"quality":"inauspicious"},{"name":"Udveg","start":"04:11","end":"05:27","startHours":28.180888330613215,"endHours":29.44793157348146,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:27","end":"06:27","startHours":5.447931573481459,"endHours":6.447931573481459,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:27","end":"07:27","startHours":6.447931573481459,"endHours":7.447931573481459,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:27","end":"08:27","startHours":7.447931573481459,"endHours":8.447931573481458,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:27","end":"09:27","startHours":8.447931573481458,"endHours":9.447931573481458,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:27","end":"10:27","startHours":9.447931573481458,"endHours":10.447931573481458,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:27","end":"11:27","startHours":10.447931573481458,"endHours":11.447931573481458,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:27","end":"12:27","startHours":11.447931573481458,"endHours":12.447931573481458,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:27","end":"13:27","startHours":12.447931573481458,"endHours":13.447931573481458,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:27","end":"14:27","startHours":13.447931573481458,"endHours":14.447931573481458,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:27","end":"15:27","startHours":14.447931573481458,"endHours":15.447931573481458,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:27","end":"16:27","startHours":15.447931573481458,"endHours":16.44793157348146,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:27","end":"17:27","startHours":16.44793157348146,"endHours":17.44793157348146,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:27","end":"18:27","startHours":17.44793157348146,"endHours":18.44793157348146,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:27","end":"19:27","startHours":18.44793157348146,"endHours":19.44793157348146,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:27","end":"20:27","startHours":19.44793157348146,"endHours":20.44793157348146,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:27","end":"21:27","startHours":20.44793157348146,"endHours":21.44793157348146,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:27","end":"22:27","startHours":21.44793157348146,"endHours":22.44793157348146,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:27","end":"23:27","startHours":22.44793157348146,"endHours":23.44793157348146,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:27","end":"00:27","startHours":23.44793157348146,"endHours":24.44793157348146,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:27","end":"01:27","startHours":24.44793157348146,"endHours":25.44793157348146,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:27","end":"02:27","startHours":25.44793157348146,"endHours":26.44793157348146,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:27","end":"03:27","startHours":26.44793157348146,"endHours":27.44793157348146,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:27","end":"04:27","startHours":27.44793157348146,"endHours":28.44793157348146,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:27","end":"05:27","startHours":28.44793157348146,"endHours":29.44793157348146,"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"South-West","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"drikRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":21.097272485461847,"eotMinutes":-5.85591612050904,"ayanamsa":23.7209}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Kṛṣṇa Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Kṛṣṇa Ekādaśī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"festivals":[{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi":"Karka"},"precedence":2},{"id":"aja-ekadashi","name":"Ajā Ekādaśī","name_sanskrit":"अजा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"King Hariścandra observed this; restored him to throne and family.","vrata":true,"detection":{"tithi_number":26,"tithi_paksha":"Kṛṣṇa","lunar_month":"Śrāvaṇa"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"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":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","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 July 18, 1990 CE · Ṛṣikeśa · Vidhyamitra","description":"July 18, 1990 CE for Ṛṣikeśa: Kṛṣṇa Ekādaśī, sūryodaya 05:27, sūryāsta 19:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1990-07-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1990-07-18","sa":"https://sa.vidhyamitra.com/city/rishikesh/1990-07-18","hi":"https://hi.vidhyamitra.com/city/rishikesh/1990-07-18","x-default":"https://vidhyamitra.com/city/rishikesh/1990-07-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T10:46:26.814Z","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":"2026-05-18T10:46:26.814Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T10:46:26.814Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}