{"id":"vidhyamitra:city-day:rishikesh:1985-08-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1985-08-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1985-08-31","date_display":"August 31, 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":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446308.770833,"kali_year":5087,"ahargana":1857843.2708,"sun":{"sidereal_longitude":133.2881,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":322.8003,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":189.5122,"elapsed_within_tithi_degrees":9.5122},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1,"moon_longitude":322.8003,"elapsed_within_degrees":2.8003},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":96.0884},"karana":{"half_tithi_index":31,"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":1985,"month":8,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446308.770833,"ahargana":1857843.2708,"kali_year":5087,"ayanamsa_lahiri":23.6527,"grahas":{"sun":{"sidereal_longitude":133.93717300000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":321.476173,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false,"latitude":-3.8852},"mars":{"sidereal_longitude":120.196373,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":116.278573,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":286.058773,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":true},"venus":{"sidereal_longitude":99.98807299999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":208.50097300000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":22.5229,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":202.5229,"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":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446308.770833,"kali_year":5087,"ahargana":1857843.2708,"sun":{"sidereal_longitude":133.2881,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":322.8003,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":189.5122,"elapsed_within_tithi_degrees":9.5122},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1,"moon_longitude":322.8003,"elapsed_within_degrees":2.8003},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":96.0884},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.885,"elongation":170.488},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.885,"opposition_distance":9.512}},"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":"05:52","sunsetLocal":"18:41","solarNoonLocal":"12:17","dayLengthHours":12.810352107361872,"dayLengthDisplay":"12 Hours 48 Mins 37 Secs","nightLengthDisplay":"11 Hours 11 Mins 23 Secs","moonriseLocal":"18:58","moonsetLocal":"06:36","rahuKala":{"name":"Rāhu Kāla","start":"09:05","end":"10:41","startHours":9.077145481103074,"endHours":10.678439494523309,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:53","end":"15:29","startHours":13.881027521363777,"endHours":15.48232153478401,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:52","end":"07:29","startHours":5.8745574542626064,"endHours":7.4758514676828405,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:17","startHours":8.863639612647043,"endHours":9.290651349559106,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:24","end":"06:45","startHours":6.408322125402685,"endHours":6.749931514932335,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:42","startHours":11.852721771031481,"endHours":12.706745244855606,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:10","end":"05:01","startHours":4.166510506614356,"endHours":5.020533980438482,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:48","end":"05:52","startHours":4.807028111982451,"endHours":5.8745574542626064,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:25","end":"15:16","startHours":14.414792192503853,"endHours":15.268815666327978,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:29","end":"18:53","startHours":18.48490956162448,"endHours":18.88490956162448,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:41","end":"19:13","startHours":18.68490956162448,"endHours":19.218674232764556,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:26","end":"20:11","startHours":18.43490956162448,"endHours":20.18490956162448,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:42","startHours":23.85272177103148,"endHours":24.706745244855608,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:52","end":"07:29","startHours":5.8745574542626064,"endHours":7.4758514676828405,"quality":"inauspicious"},{"name":"Śubha","start":"07:29","end":"09:05","startHours":7.4758514676828405,"endHours":9.077145481103074,"quality":"auspicious"},{"name":"Roga","start":"09:05","end":"10:41","startHours":9.077145481103074,"endHours":10.678439494523309,"quality":"inauspicious"},{"name":"Udveg","start":"10:41","end":"12:17","startHours":10.678439494523309,"endHours":12.279733507943543,"quality":"inauspicious"},{"name":"Chala","start":"12:17","end":"13:53","startHours":12.279733507943543,"endHours":13.881027521363777,"quality":"neutral"},{"name":"Labha","start":"13:53","end":"15:29","startHours":13.881027521363777,"endHours":15.48232153478401,"quality":"auspicious"},{"name":"Amṛta","start":"15:29","end":"17:05","startHours":15.48232153478401,"endHours":17.083615548204246,"quality":"auspicious"},{"name":"Kāla","start":"17:05","end":"18:41","startHours":17.083615548204246,"endHours":18.68490956162448,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:41","end":"20:05","startHours":18.68490956162448,"endHours":20.083615548204246,"quality":"auspicious"},{"name":"Amṛta","start":"20:05","end":"21:29","startHours":20.083615548204246,"endHours":21.482321534784013,"quality":"auspicious"},{"name":"Kāla","start":"21:29","end":"22:53","startHours":21.482321534784013,"endHours":22.881027521363777,"quality":"inauspicious"},{"name":"Śubha","start":"22:53","end":"00:17","startHours":22.881027521363777,"endHours":24.279733507943543,"quality":"auspicious"},{"name":"Roga","start":"00:17","end":"01:41","startHours":24.279733507943543,"endHours":25.67843949452331,"quality":"inauspicious"},{"name":"Udveg","start":"01:41","end":"03:05","startHours":25.67843949452331,"endHours":27.077145481103074,"quality":"inauspicious"},{"name":"Chala","start":"03:05","end":"04:29","startHours":27.077145481103074,"endHours":28.47585146768284,"quality":"neutral"},{"name":"Labha","start":"04:29","end":"05:52","startHours":28.47585146768284,"endHours":29.874557454262607,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:52","end":"06:52","startHours":5.8745574542626064,"endHours":6.8745574542626064,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:52","end":"07:52","startHours":6.8745574542626064,"endHours":7.8745574542626064,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:52","end":"08:52","startHours":7.8745574542626064,"endHours":8.874557454262607,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:52","end":"09:52","startHours":8.874557454262607,"endHours":9.874557454262607,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:52","end":"10:52","startHours":9.874557454262607,"endHours":10.874557454262607,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:52","end":"11:52","startHours":10.874557454262607,"endHours":11.874557454262607,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:52","end":"12:52","startHours":11.874557454262607,"endHours":12.874557454262607,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:52","end":"13:52","startHours":12.874557454262607,"endHours":13.874557454262607,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:52","end":"14:52","startHours":13.874557454262607,"endHours":14.874557454262607,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:52","end":"15:52","startHours":14.874557454262607,"endHours":15.874557454262607,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:52","end":"16:52","startHours":15.874557454262607,"endHours":16.874557454262607,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:52","end":"17:52","startHours":16.874557454262607,"endHours":17.874557454262607,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:52","end":"18:52","startHours":17.874557454262607,"endHours":18.874557454262607,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:52","end":"19:52","startHours":18.874557454262607,"endHours":19.874557454262607,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:52","end":"20:52","startHours":19.874557454262607,"endHours":20.874557454262607,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:52","end":"21:52","startHours":20.874557454262607,"endHours":21.874557454262607,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:52","end":"22:52","startHours":21.874557454262607,"endHours":22.874557454262607,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:52","end":"23:52","startHours":22.874557454262607,"endHours":23.874557454262607,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:52","end":"00:52","startHours":23.874557454262607,"endHours":24.874557454262607,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:52","end":"01:52","startHours":24.874557454262607,"endHours":25.874557454262607,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:52","end":"02:52","startHours":25.874557454262607,"endHours":26.874557454262607,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:52","end":"03:52","startHours":26.874557454262607,"endHours":27.874557454262607,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:52","end":"04:52","startHours":27.874557454262607,"endHours":28.874557454262607,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:52","end":"05:52","startHours":28.874557454262607,"endHours":29.874557454262607,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":8.721344257449267,"eotMinutes":0.14558952338733633,"ayanamsa":23.6527}},"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 Kṛṣṇa Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Pratipada · Vikram 2042 Bahudhānya · Śaka 1907 Krodhana"},"festivals":[{"id":"pitra-paksha-start","name":"Pitṛ-Pakṣa Start","name_sanskrit":"पितृ पक्ष आरम्भ","tradition":"Pan-Hindu","associated_deity":"Pitṛ-gaṇa","significance":"Begin 16-day śrāddha period for ancestors. Bhādrapada Pūrṇimā next-day.","vrata":true,"detection":{"tithi_number":16,"tithi_paksha":"Kṛṣṇa","lunar_month":"Bhādrapada"},"precedence":2},{"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":"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 August 31, 1985 CE · Ṛṣikeśa · Vidhyamitra","description":"August 31, 1985 CE for Ṛṣikeśa: Kṛṣṇa Pratipada, sūryodaya 05:52, sūryāsta 18:41.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1985-08-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1985-08-31","sa":"https://sa.vidhyamitra.com/city/rishikesh/1985-08-31","hi":"https://hi.vidhyamitra.com/city/rishikesh/1985-08-31","x-default":"https://vidhyamitra.com/city/rishikesh/1985-08-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T20:19:03.909Z","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":"2026-05-18T20:19:03.909Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T20:19:03.909Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}