{"id":"vidhyamitra:city-day:rishikesh:2011-08-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2011-08-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-08-31","date_display":"August 31, 2011 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":2011,"month":8,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455804.770833,"kali_year":5113,"ahargana":1867339.2708,"sun":{"sidereal_longitude":132.5871,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":157.0085,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":24.4214,"elapsed_within_tithi_degrees":0.4214},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":157.0085,"elapsed_within_degrees":10.3419},"yoga":{"number":22,"name":"Sādhya","sum_longitude":289.5957},"karana":{"half_tithi_index":4,"name":"Taitila"},"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":2011,"month":8,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455804.770833,"ahargana":1867339.2708,"kali_year":5113,"ayanamsa_lahiri":24.0159,"grahas":{"sun":{"sidereal_longitude":133.296556,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":160.091856,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false,"latitude":-4.4601},"mars":{"sidereal_longitude":83.87165600000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":115.70205599999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":16.23605600000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":137.14995599999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":170.80215599999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":239.3792,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":59.3792,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2},"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":2011,"month":8,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455804.770833,"kali_year":5113,"ahargana":1867339.2708,"sun":{"sidereal_longitude":132.5871,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":157.0085,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":24.4214,"elapsed_within_tithi_degrees":0.4214},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":157.0085,"elapsed_within_degrees":10.3419},"yoga":{"number":22,"name":"Sādhya","sum_longitude":289.5957},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.46,"elongation":24.421},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.46,"opposition_distance":155.579}},"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":12.818589808485427,"dayLengthDisplay":"12 Hours 49 Mins 07 Secs","nightLengthDisplay":"11 Hours 10 Mins 53 Secs","moonriseLocal":"08:05","moonsetLocal":"20:03","rahuKala":{"name":"Rāhu Kāla","start":"12:17","end":"13:53","startHours":12.279733507943543,"endHours":13.882057234004222,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:28","end":"09:05","startHours":7.472762329761508,"endHours":9.075086055822187,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:41","end":"12:17","startHours":10.677409781882865,"endHours":12.279733507943543,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:17","startHours":8.86144289234743,"endHours":9.288729219296943,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:24","end":"06:45","startHours":6.404546512387722,"endHours":6.746375573947334,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:42","startHours":11.852447180994028,"endHours":12.707019834893059,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:10","end":"05:01","startHours":4.161293295902773,"endHours":5.0158659498018014,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:48","end":"05:52","startHours":4.802222786327044,"endHours":5.87043860370083,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:25","end":"15:16","startHours":14.416165142691115,"endHours":15.270737796590144,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:29","end":"18:53","startHours":18.489028412186258,"endHours":18.889028412186256,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:41","end":"19:13","startHours":18.689028412186257,"endHours":19.22313632087315,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:26","end":"20:11","startHours":18.439028412186257,"endHours":20.189028412186257,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:42","startHours":23.85244718099403,"endHours":24.707019834893057,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:52","end":"07:28","startHours":5.87043860370083,"endHours":7.472762329761508,"quality":"auspicious"},{"name":"Amṛta","start":"07:28","end":"09:05","startHours":7.472762329761508,"endHours":9.075086055822187,"quality":"auspicious"},{"name":"Kāla","start":"09:05","end":"10:41","startHours":9.075086055822187,"endHours":10.677409781882865,"quality":"inauspicious"},{"name":"Śubha","start":"10:41","end":"12:17","startHours":10.677409781882865,"endHours":12.279733507943543,"quality":"auspicious"},{"name":"Roga","start":"12:17","end":"13:53","startHours":12.279733507943543,"endHours":13.882057234004222,"quality":"inauspicious"},{"name":"Udveg","start":"13:53","end":"15:29","startHours":13.882057234004222,"endHours":15.4843809600649,"quality":"inauspicious"},{"name":"Chala","start":"15:29","end":"17:05","startHours":15.4843809600649,"endHours":17.08670468612558,"quality":"neutral"},{"name":"Labha","start":"17:05","end":"18:41","startHours":17.08670468612558,"endHours":18.689028412186257,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:41","end":"20:05","startHours":18.689028412186257,"endHours":20.08670468612558,"quality":"inauspicious"},{"name":"Chala","start":"20:05","end":"21:29","startHours":20.08670468612558,"endHours":21.4843809600649,"quality":"neutral"},{"name":"Labha","start":"21:29","end":"22:53","startHours":21.4843809600649,"endHours":22.882057234004222,"quality":"auspicious"},{"name":"Amṛta","start":"22:53","end":"00:17","startHours":22.882057234004222,"endHours":24.279733507943543,"quality":"auspicious"},{"name":"Kāla","start":"00:17","end":"01:41","startHours":24.279733507943543,"endHours":25.677409781882865,"quality":"inauspicious"},{"name":"Śubha","start":"01:41","end":"03:05","startHours":25.677409781882865,"endHours":27.075086055822187,"quality":"auspicious"},{"name":"Roga","start":"03:05","end":"04:28","startHours":27.075086055822187,"endHours":28.47276232976151,"quality":"inauspicious"},{"name":"Udveg","start":"04:28","end":"05:52","startHours":28.47276232976151,"endHours":29.87043860370083,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:52","end":"06:52","startHours":5.87043860370083,"endHours":6.87043860370083,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:52","end":"07:52","startHours":6.87043860370083,"endHours":7.87043860370083,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:52","end":"08:52","startHours":7.87043860370083,"endHours":8.87043860370083,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:52","end":"09:52","startHours":8.87043860370083,"endHours":9.87043860370083,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:52","end":"10:52","startHours":9.87043860370083,"endHours":10.87043860370083,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:52","end":"11:52","startHours":10.87043860370083,"endHours":11.87043860370083,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:52","end":"12:52","startHours":11.87043860370083,"endHours":12.87043860370083,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:52","end":"13:52","startHours":12.87043860370083,"endHours":13.87043860370083,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:52","end":"14:52","startHours":13.87043860370083,"endHours":14.87043860370083,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:52","end":"15:52","startHours":14.87043860370083,"endHours":15.87043860370083,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:52","end":"16:52","startHours":15.87043860370083,"endHours":16.87043860370083,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:52","end":"17:52","startHours":16.87043860370083,"endHours":17.87043860370083,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:52","end":"18:52","startHours":17.87043860370083,"endHours":18.87043860370083,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:52","end":"19:52","startHours":18.87043860370083,"endHours":19.87043860370083,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:52","end":"20:52","startHours":19.87043860370083,"endHours":20.87043860370083,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:52","end":"21:52","startHours":20.87043860370083,"endHours":21.87043860370083,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:52","end":"22:52","startHours":21.87043860370083,"endHours":22.87043860370083,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:52","end":"23:52","startHours":22.87043860370083,"endHours":23.87043860370083,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:52","end":"00:52","startHours":23.87043860370083,"endHours":24.87043860370083,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:52","end":"01:52","startHours":24.87043860370083,"endHours":25.87043860370083,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:52","end":"02:52","startHours":25.87043860370083,"endHours":26.87043860370083,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:52","end":"03:52","startHours":26.87043860370083,"endHours":27.87043860370083,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:52","end":"04:52","startHours":27.87043860370083,"endHours":28.87043860370083,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:52","end":"05:52","startHours":28.87043860370083,"endHours":29.87043860370083,"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":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"South-West","anandadiYoga":{"name":"Mātaṇga","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":8.824453240128898,"eotMinutes":0.14558952338733633,"ayanamsa":24.0159}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Tṛtīyā · Vikram 2068 Krodhi · Śaka 1933 Khara"},"festivals":[{"id":"varaha-jayanti","name":"Varāha Jayantī","name_sanskrit":"वराह जयन्ती","tradition":"Vaishnava","associated_deity":"Varāha (3rd daśāvatāra of Krishna)","deity_avatara_index":12,"significance":"Varāha lifted Bhū-Devī from the cosmic ocean.","vrata":false,"detection":{"tithi_number":3,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":4,"sources":["Bhāgavata 3.13"]},{"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":"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":[]},"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, 2011 CE · Ṛṣikeśa · Vidhyamitra","description":"August 31, 2011 CE for Ṛṣikeśa: Śukla Tṛtīyā, sūryodaya 05:52, sūryāsta 18:41.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2011-08-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2011-08-31","sa":"https://sa.vidhyamitra.com/city/rishikesh/2011-08-31","hi":"https://hi.vidhyamitra.com/city/rishikesh/2011-08-31","x-default":"https://vidhyamitra.com/city/rishikesh/2011-08-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T22:54:50.432Z","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":"2026-05-15T22:54:50.432Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T22:54:50.432Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}