{"id":"vidhyamitra:city-day:rishikesh:1985-08-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1985-08-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1985-08-18","date_display":"August 18, 1985 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":1985,"month":8,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446295.770833,"kali_year":5087,"ahargana":1857830.2708,"sun":{"sidereal_longitude":120.8061,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":140.4679,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":19.6618,"elapsed_within_tithi_degrees":7.6618},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":140.4679,"elapsed_within_degrees":7.1346},"yoga":{"number":20,"name":"Śiva","sum_longitude":261.2741},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1985,"month":8,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446295.770833,"ahargana":1857830.2708,"kali_year":5087,"ayanamsa_lahiri":23.6522,"grahas":{"sun":{"sidereal_longitude":121.40006900000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":142.709969,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false,"latitude":3.9995},"mars":{"sidereal_longitude":111.914669,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":110.264569,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":287.50866900000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":true},"venus":{"sidereal_longitude":84.63406900000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":207.897469,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":23.2117,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":203.2117,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":1985,"month":8,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446295.770833,"kali_year":5087,"ahargana":1857830.2708,"sun":{"sidereal_longitude":120.8061,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":140.4679,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":19.6618,"elapsed_within_tithi_degrees":7.6618},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":140.4679,"elapsed_within_degrees":7.1346},"yoga":{"number":20,"name":"Śiva","sum_longitude":261.2741},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.999,"elongation":19.662},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.999,"opposition_distance":160.338}},"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":"05:45","sunsetLocal":"18:56","solarNoonLocal":"12:20","dayLengthHours":13.172062196840976,"dayLengthDisplay":"13 Hours 10 Mins 19 Secs","nightLengthDisplay":"10 Hours 49 Mins 41 Secs","moonriseLocal":"07:30","moonsetLocal":"20:01","rahuKala":{"name":"Rāhu Kāla","start":"17:17","end":"18:56","startHours":17.28048428583054,"endHours":18.926992060435662,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:20","end":"13:59","startHours":12.340960962015174,"endHours":13.987468736620297,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:38","end":"17:17","startHours":15.633976511225416,"endHours":17.28048428583054,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:50","end":"09:16","startHours":8.82841104285758,"endHours":9.267479782752279,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:18","end":"06:39","startHours":6.30376578846306,"endHours":6.655020780378819,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:47","startHours":11.901892222120475,"endHours":12.780029701909873,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:00","end":"04:53","startHours":3.9986549040158885,"endHours":4.876792383805287,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:39","end":"05:45","startHours":4.657258013857938,"endHours":5.754929863594685,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:32","end":"15:25","startHours":14.536304661488668,"endHours":15.414442141278066,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:44","end":"19:08","startHours":18.726992060435663,"endHours":19.12699206043566,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:56","end":"19:29","startHours":18.926992060435662,"endHours":19.475827985304036,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:41","end":"20:26","startHours":18.676992060435662,"endHours":20.426992060435662,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:47","startHours":23.901892222120473,"endHours":24.780029701909875,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:45","end":"07:24","startHours":5.754929863594685,"endHours":7.401437638199807,"quality":"inauspicious"},{"name":"Chala","start":"07:24","end":"09:03","startHours":7.401437638199807,"endHours":9.047945412804928,"quality":"neutral"},{"name":"Labha","start":"09:03","end":"10:42","startHours":9.047945412804928,"endHours":10.694453187410051,"quality":"auspicious"},{"name":"Amṛta","start":"10:42","end":"12:20","startHours":10.694453187410051,"endHours":12.340960962015174,"quality":"auspicious"},{"name":"Kāla","start":"12:20","end":"13:59","startHours":12.340960962015174,"endHours":13.987468736620297,"quality":"inauspicious"},{"name":"Śubha","start":"13:59","end":"15:38","startHours":13.987468736620297,"endHours":15.633976511225416,"quality":"auspicious"},{"name":"Roga","start":"15:38","end":"17:17","startHours":15.633976511225416,"endHours":17.28048428583054,"quality":"inauspicious"},{"name":"Udveg","start":"17:17","end":"18:56","startHours":17.28048428583054,"endHours":18.926992060435662,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:56","end":"20:17","startHours":18.926992060435662,"endHours":20.28048428583054,"quality":"auspicious"},{"name":"Roga","start":"20:17","end":"21:38","startHours":20.28048428583054,"endHours":21.63397651122542,"quality":"inauspicious"},{"name":"Udveg","start":"21:38","end":"22:59","startHours":21.63397651122542,"endHours":22.987468736620297,"quality":"inauspicious"},{"name":"Chala","start":"22:59","end":"00:20","startHours":22.987468736620297,"endHours":24.340960962015174,"quality":"neutral"},{"name":"Labha","start":"00:20","end":"01:42","startHours":24.340960962015174,"endHours":25.69445318741005,"quality":"auspicious"},{"name":"Amṛta","start":"01:42","end":"03:03","startHours":25.69445318741005,"endHours":27.04794541280493,"quality":"auspicious"},{"name":"Kāla","start":"03:03","end":"04:24","startHours":27.04794541280493,"endHours":28.40143763819981,"quality":"inauspicious"},{"name":"Śubha","start":"04:24","end":"05:45","startHours":28.40143763819981,"endHours":29.754929863594686,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:45","end":"06:45","startHours":5.754929863594685,"endHours":6.754929863594685,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:45","end":"07:45","startHours":6.754929863594685,"endHours":7.754929863594685,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:45","end":"08:45","startHours":7.754929863594685,"endHours":8.754929863594686,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:45","end":"09:45","startHours":8.754929863594686,"endHours":9.754929863594686,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:45","end":"10:45","startHours":9.754929863594686,"endHours":10.754929863594686,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:45","end":"11:45","startHours":10.754929863594686,"endHours":11.754929863594686,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:45","end":"12:45","startHours":11.754929863594686,"endHours":12.754929863594686,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:45","end":"13:45","startHours":12.754929863594686,"endHours":13.754929863594686,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:45","end":"14:45","startHours":13.754929863594686,"endHours":14.754929863594686,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:45","end":"15:45","startHours":14.754929863594686,"endHours":15.754929863594686,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:45","end":"16:45","startHours":15.754929863594686,"endHours":16.754929863594686,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:45","end":"17:45","startHours":16.754929863594686,"endHours":17.754929863594686,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:45","end":"18:45","startHours":17.754929863594686,"endHours":18.754929863594686,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:45","end":"19:45","startHours":18.754929863594686,"endHours":19.754929863594686,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:45","end":"20:45","startHours":19.754929863594686,"endHours":20.754929863594686,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:45","end":"21:45","startHours":20.754929863594686,"endHours":21.754929863594686,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:45","end":"22:45","startHours":21.754929863594686,"endHours":22.754929863594686,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:45","end":"23:45","startHours":22.754929863594686,"endHours":23.754929863594686,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:45","end":"00:45","startHours":23.754929863594686,"endHours":24.754929863594686,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:45","end":"01:45","startHours":24.754929863594686,"endHours":25.754929863594686,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:45","end":"02:45","startHours":25.754929863594686,"endHours":26.754929863594686,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:45","end":"03:45","startHours":26.754929863594686,"endHours":27.754929863594686,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:45","end":"04:45","startHours":27.754929863594686,"endHours":28.754929863594686,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:45","end":"05:45","startHours":28.754929863594686,"endHours":29.754929863594686,"planetary_lord":"Jupiter"}],"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","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":13.169504498835735,"eotMinutes":-3.5280577209103767,"ayanamsa":23.6522}},"calendars":{"vikram_samvat":2042,"vikram_samvatsara":"Bahudhānya","saka_samvat":1907,"saka_samvatsara":"Krodhana","bengali_samvat":1392,"malayalam_era":1161,"nanakshahi_year":516,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Dvitīyā · Vikram 2042 Bahudhānya · Śaka 1907 Krodhana"},"festivals":[{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"precedence":5}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 August 18, 1985 CE · Ṛṣikeśa · Vidhyamitra","description":"August 18, 1985 CE for Ṛṣikeśa: Śukla Dvitīyā, sūryodaya 05:45, sūryāsta 18:56.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1985-08-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1985-08-18","sa":"https://sa.vidhyamitra.com/city/rishikesh/1985-08-18","hi":"https://hi.vidhyamitra.com/city/rishikesh/1985-08-18","x-default":"https://vidhyamitra.com/city/rishikesh/1985-08-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T11:16:37.977Z","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":"2026-05-18T11:16:37.977Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T11:16:37.977Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}