{"id":"vidhyamitra:city-day:rishikesh:1978-03-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1978-03-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1978-03-18","date_display":"March 18, 1978 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":1978,"month":3,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443585.770833,"kali_year":5079,"ahargana":1855120.2708,"sun":{"sidereal_longitude":333.7706,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":77.1375,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":103.3669,"elapsed_within_tithi_degrees":7.3669},"nakshatra":{"number":6,"name":"Ārdrā","pada":4,"moon_longitude":77.1375,"elapsed_within_degrees":10.4708},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":50.9081},"karana":{"half_tithi_index":17,"name":"Kaulava"},"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":1978,"month":3,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2443585.770833,"ahargana":1855120.2708,"kali_year":5079,"ayanamsa_lahiri":23.5486,"grahas":{"sun":{"sidereal_longitude":333.5417110000001,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":77.42001099999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false,"latitude":-4.4999},"mars":{"sidereal_longitude":90.462311,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":350.249111,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":63.36091099999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":347.166111,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":121.304911,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":166.8006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":346.8006,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","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":1978,"month":3,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443585.770833,"kali_year":5079,"ahargana":1855120.2708,"sun":{"sidereal_longitude":333.7706,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":77.1375,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":103.3669,"elapsed_within_tithi_degrees":7.3669},"nakshatra":{"number":6,"name":"Ārdrā","pada":4,"moon_longitude":77.1375,"elapsed_within_degrees":10.4708},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":50.9081},"karana":{"half_tithi_index":17,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.5,"elongation":103.367},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.5,"opposition_distance":76.633}},"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":"06:25","sunsetLocal":"18:27","solarNoonLocal":"12:26","dayLengthHours":12.039003708650082,"dayLengthDisplay":"12 Hours 02 Mins 20 Secs","nightLengthDisplay":"11 Hours 57 Mins 40 Secs","moonriseLocal":"12:21","moonsetLocal":"02:21","rahuKala":{"name":"Rāhu Kāla","start":"09:25","end":"10:55","startHours":9.418473973496031,"endHours":10.92334943707729,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:56","end":"15:26","startHours":13.933100364239811,"endHours":15.43797582782107,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:25","end":"07:55","startHours":6.40872304633351,"endHours":7.91359850991477,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:13","end":"09:37","startHours":9.217823911685196,"endHours":9.619124035306864,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:55","end":"07:14","startHours":6.9103482008605965,"endHours":7.231388299757932,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:50","startHours":12.02692477703688,"endHours":12.82952502428022,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:48","end":"05:36","startHours":4.803522551846832,"endHours":5.606122799090171,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:24","end":"06:25","startHours":5.405472737279336,"endHours":6.40872304633351,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:14","startHours":14.434725518766898,"endHours":15.237325766010237,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:15","end":"18:39","startHours":18.247726754983592,"endHours":18.64772675498359,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:27","end":"18:57","startHours":18.44772675498359,"endHours":18.94935190951068,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:12","end":"19:57","startHours":18.19772675498359,"endHours":19.94772675498359,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:50","startHours":24.02692477703688,"endHours":24.82952502428022,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:25","end":"07:55","startHours":6.40872304633351,"endHours":7.91359850991477,"quality":"inauspicious"},{"name":"Śubha","start":"07:55","end":"09:25","startHours":7.91359850991477,"endHours":9.418473973496031,"quality":"auspicious"},{"name":"Roga","start":"09:25","end":"10:55","startHours":9.418473973496031,"endHours":10.92334943707729,"quality":"inauspicious"},{"name":"Udveg","start":"10:55","end":"12:26","startHours":10.92334943707729,"endHours":12.42822490065855,"quality":"inauspicious"},{"name":"Chala","start":"12:26","end":"13:56","startHours":12.42822490065855,"endHours":13.933100364239811,"quality":"neutral"},{"name":"Labha","start":"13:56","end":"15:26","startHours":13.933100364239811,"endHours":15.43797582782107,"quality":"auspicious"},{"name":"Amṛta","start":"15:26","end":"16:57","startHours":15.43797582782107,"endHours":16.94285129140233,"quality":"auspicious"},{"name":"Kāla","start":"16:57","end":"18:27","startHours":16.94285129140233,"endHours":18.44772675498359,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:27","end":"19:57","startHours":18.44772675498359,"endHours":19.94285129140233,"quality":"auspicious"},{"name":"Amṛta","start":"19:57","end":"21:26","startHours":19.94285129140233,"endHours":21.43797582782107,"quality":"auspicious"},{"name":"Kāla","start":"21:26","end":"22:56","startHours":21.43797582782107,"endHours":22.933100364239813,"quality":"inauspicious"},{"name":"Śubha","start":"22:56","end":"00:26","startHours":22.933100364239813,"endHours":24.42822490065855,"quality":"auspicious"},{"name":"Roga","start":"00:26","end":"01:55","startHours":24.42822490065855,"endHours":25.92334943707729,"quality":"inauspicious"},{"name":"Udveg","start":"01:55","end":"03:25","startHours":25.92334943707729,"endHours":27.41847397349603,"quality":"inauspicious"},{"name":"Chala","start":"03:25","end":"04:55","startHours":27.41847397349603,"endHours":28.91359850991477,"quality":"neutral"},{"name":"Labha","start":"04:55","end":"06:25","startHours":28.91359850991477,"endHours":30.40872304633351,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:25","end":"07:25","startHours":6.40872304633351,"endHours":7.40872304633351,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:25","end":"08:25","startHours":7.40872304633351,"endHours":8.40872304633351,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:25","end":"09:25","startHours":8.40872304633351,"endHours":9.40872304633351,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:25","end":"10:25","startHours":9.40872304633351,"endHours":10.40872304633351,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:25","end":"11:25","startHours":10.40872304633351,"endHours":11.40872304633351,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:25","end":"12:25","startHours":11.40872304633351,"endHours":12.40872304633351,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:25","end":"13:25","startHours":12.40872304633351,"endHours":13.40872304633351,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:25","end":"14:25","startHours":13.40872304633351,"endHours":14.40872304633351,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:25","end":"15:25","startHours":14.40872304633351,"endHours":15.40872304633351,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:25","end":"16:25","startHours":15.40872304633351,"endHours":16.40872304633351,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:25","end":"17:25","startHours":16.40872304633351,"endHours":17.40872304633351,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:25","end":"18:25","startHours":17.40872304633351,"endHours":18.40872304633351,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:25","end":"19:25","startHours":18.40872304633351,"endHours":19.40872304633351,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:25","end":"20:25","startHours":19.40872304633351,"endHours":20.40872304633351,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:25","end":"21:25","startHours":20.40872304633351,"endHours":21.40872304633351,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:25","end":"22:25","startHours":21.40872304633351,"endHours":22.40872304633351,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:25","end":"23:25","startHours":22.40872304633351,"endHours":23.40872304633351,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:25","end":"00:25","startHours":23.40872304633351,"endHours":24.40872304633351,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:25","end":"01:25","startHours":24.40872304633351,"endHours":25.40872304633351,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:25","end":"02:25","startHours":25.40872304633351,"endHours":26.40872304633351,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:25","end":"03:25","startHours":26.40872304633351,"endHours":27.40872304633351,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:25","end":"04:25","startHours":27.40872304633351,"endHours":28.40872304633351,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:25","end":"05:25","startHours":28.40872304633351,"endHours":29.40872304633351,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:25","end":"06:25","startHours":29.40872304633351,"endHours":30.40872304633351,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-1.1568590011654063,"eotMinutes":-8.763894039513033,"ayanamsa":23.5486}},"calendars":{"vikram_samvat":2035,"vikram_samvatsara":"Prajāpati","saka_samvat":1900,"saka_samvatsara":"Kālayukta","bengali_samvat":1385,"malayalam_era":1154,"nanakshahi_year":509,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Navamī · Vikram 2035 Prajāpati · Śaka 1900 Kālayukta"},"festivals":[{"id":"rama-navami","name":"Rāma Navamī","name_sanskrit":"राम नवमी","tradition":"Vaishnava","associated_deity":"Rāma (18th avatāra of Krishna)","deity_avatara_index":18,"significance":"Bhagavān Rāma's birth at Ayodhyā. Sūryavaṃśa's most exalted moment.","vrata":true,"primary_observance":"Madhyāhna (noon) abhiṣekam in Ayodhyā tradition","detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":1,"related_chart":"rama","historical_anchor":{"event":"Bhagavān Rāma's birth at Ayodhyā","date_julian":"-1626101-04-03","location":"Ayodhyā"},"sources":["Vālmīki Rāmāyaṇa, Bāla-Kāṇḍa 1.18"]},{"id":"mina-sankranti","name":"Mīna Saṅkrānti","name_sanskrit":"मीन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Pisces; Mīna-māsa begins.","vrata":false,"detection":{"sun_rashi":"Mīna"},"precedence":5}],"todays_walk":{"walk":{"id":"rama-navami-walk","name":"Rāma Navamī Walk","name_sanskrit":"राम नवमी यात्रा","type":"festival","description":"Vālmīki Bāla-Kāṇḍa selections + BG 4.7-8 (avatāra principle).","step_count":9,"url":"/walk/rama-navami-walk"},"reason":"Today is Rāma Navamī — its dedicated walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","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 March 18, 1978 CE · Ṛṣikeśa · Vidhyamitra","description":"March 18, 1978 CE for Ṛṣikeśa: Śukla Navamī, sūryodaya 06:25, sūryāsta 18:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1978-03-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1978-03-18","sa":"https://sa.vidhyamitra.com/city/rishikesh/1978-03-18","hi":"https://hi.vidhyamitra.com/city/rishikesh/1978-03-18","x-default":"https://vidhyamitra.com/city/rishikesh/1978-03-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-19T00:52:29.436Z","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":"2026-05-19T00:52:29.436Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-19T00:52:29.436Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}