{"id":"vidhyamitra:city-day:rishikesh:2131-10-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2131-10-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2131-10-27","date_display":"October 27, 2131 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":2131,"month":10,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499690.770833,"kali_year":5233,"ahargana":1911225.2708,"sun":{"sidereal_longitude":186.4659,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":254.9967,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":68.5308,"elapsed_within_tithi_degrees":8.5308},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":254.9967,"elapsed_within_degrees":1.6634},"yoga":{"number":7,"name":"Sukarma","sum_longitude":81.4627},"karana":{"half_tithi_index":11,"name":"Taitila"},"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":2131,"month":10,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2499690.770833,"ahargana":1911225.2708,"kali_year":5233,"ayanamsa_lahiri":25.6944,"grahas":{"sun":{"sidereal_longitude":187.49578799999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":251.705288,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false,"latitude":-0.0713},"mars":{"sidereal_longitude":14.080787999999984,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":207.96808799999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":63.466588,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":213.08518800000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":199.70718799999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":74.0877,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":254.0877,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":2131,"month":10,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499690.770833,"kali_year":5233,"ahargana":1911225.2708,"sun":{"sidereal_longitude":186.4659,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":254.9967,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":68.5308,"elapsed_within_tithi_degrees":8.5308},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":254.9967,"elapsed_within_degrees":1.6634},"yoga":{"number":7,"name":"Sukarma","sum_longitude":81.4627},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.071,"elongation":68.531},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.071,"opposition_distance":111.469}},"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":"06:26","sunsetLocal":"17:35","solarNoonLocal":"12:01","dayLengthHours":11.142345531920348,"dayLengthDisplay":"11 Hours 08 Mins 32 Secs","nightLengthDisplay":"12 Hours 51 Mins 28 Secs","moonriseLocal":"11:12","moonsetLocal":"21:23","rahuKala":{"name":"Rāhu Kāla","start":"09:13","end":"10:37","startHours":9.223898555987994,"endHours":10.616691747478036,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:24","end":"14:48","startHours":13.402278130458123,"endHours":14.795071321948168,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:26","end":"07:50","startHours":6.438312173007906,"endHours":7.831105364497949,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:02","end":"09:25","startHours":9.038192797122655,"endHours":9.409604314853333,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:54","end":"07:12","startHours":6.902576570171253,"endHours":7.199705784355796,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:38","end":"12:23","startHours":11.6380734212374,"endHours":12.380896456698757,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:57","end":"05:42","startHours":4.9526661020851925,"endHours":5.695489137546549,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:31","end":"06:26","startHours":5.50978337868121,"endHours":6.438312173007906,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:52","end":"14:37","startHours":13.86654252762147,"endHours":14.609365563082827,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:23","end":"17:47","startHours":17.380657704928254,"endHours":17.780657704928252,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:35","end":"18:03","startHours":17.580657704928253,"endHours":18.0449221020916,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:20","end":"19:05","startHours":17.330657704928253,"endHours":19.080657704928253,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:38","end":"00:23","startHours":23.6380734212374,"endHours":24.380896456698757,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:26","end":"07:50","startHours":6.438312173007906,"endHours":7.831105364497949,"quality":"inauspicious"},{"name":"Śubha","start":"07:50","end":"09:13","startHours":7.831105364497949,"endHours":9.223898555987994,"quality":"auspicious"},{"name":"Roga","start":"09:13","end":"10:37","startHours":9.223898555987994,"endHours":10.616691747478036,"quality":"inauspicious"},{"name":"Udveg","start":"10:37","end":"12:01","startHours":10.616691747478036,"endHours":12.009484938968079,"quality":"inauspicious"},{"name":"Chala","start":"12:01","end":"13:24","startHours":12.009484938968079,"endHours":13.402278130458123,"quality":"neutral"},{"name":"Labha","start":"13:24","end":"14:48","startHours":13.402278130458123,"endHours":14.795071321948168,"quality":"auspicious"},{"name":"Amṛta","start":"14:48","end":"16:11","startHours":14.795071321948168,"endHours":16.18786451343821,"quality":"auspicious"},{"name":"Kāla","start":"16:11","end":"17:35","startHours":16.18786451343821,"endHours":17.580657704928253,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:35","end":"19:11","startHours":17.580657704928253,"endHours":19.18786451343821,"quality":"auspicious"},{"name":"Amṛta","start":"19:11","end":"20:48","startHours":19.18786451343821,"endHours":20.795071321948164,"quality":"auspicious"},{"name":"Kāla","start":"20:48","end":"22:24","startHours":20.795071321948164,"endHours":22.40227813045812,"quality":"inauspicious"},{"name":"Śubha","start":"22:24","end":"00:01","startHours":22.40227813045812,"endHours":24.00948493896808,"quality":"auspicious"},{"name":"Roga","start":"00:01","end":"01:37","startHours":24.00948493896808,"endHours":25.616691747478036,"quality":"inauspicious"},{"name":"Udveg","start":"01:37","end":"03:13","startHours":25.616691747478036,"endHours":27.223898555987994,"quality":"inauspicious"},{"name":"Chala","start":"03:13","end":"04:50","startHours":27.223898555987994,"endHours":28.831105364497947,"quality":"neutral"},{"name":"Labha","start":"04:50","end":"06:26","startHours":28.831105364497947,"endHours":30.438312173007905,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:26","end":"07:26","startHours":6.438312173007906,"endHours":7.438312173007906,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:26","end":"08:26","startHours":7.438312173007906,"endHours":8.438312173007905,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:26","end":"09:26","startHours":8.438312173007905,"endHours":9.438312173007905,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:26","end":"10:26","startHours":9.438312173007905,"endHours":10.438312173007905,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:26","end":"11:26","startHours":10.438312173007905,"endHours":11.438312173007905,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:26","end":"12:26","startHours":11.438312173007905,"endHours":12.438312173007905,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:26","end":"13:26","startHours":12.438312173007905,"endHours":13.438312173007905,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:26","end":"14:26","startHours":13.438312173007905,"endHours":14.438312173007905,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:26","end":"15:26","startHours":14.438312173007905,"endHours":15.438312173007905,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:26","end":"16:26","startHours":15.438312173007905,"endHours":16.438312173007905,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:26","end":"17:26","startHours":16.438312173007905,"endHours":17.438312173007905,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:26","end":"18:26","startHours":17.438312173007905,"endHours":18.438312173007905,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:26","end":"19:26","startHours":18.438312173007905,"endHours":19.438312173007905,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:26","end":"20:26","startHours":19.438312173007905,"endHours":20.438312173007905,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:26","end":"21:26","startHours":20.438312173007905,"endHours":21.438312173007905,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:26","end":"22:26","startHours":21.438312173007905,"endHours":22.438312173007905,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:26","end":"23:26","startHours":22.438312173007905,"endHours":23.438312173007905,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:26","end":"00:26","startHours":23.438312173007905,"endHours":24.438312173007905,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:26","end":"01:26","startHours":24.438312173007905,"endHours":25.438312173007905,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:26","end":"02:26","startHours":25.438312173007905,"endHours":26.438312173007905,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:26","end":"03:26","startHours":26.438312173007905,"endHours":27.438312173007905,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:26","end":"04:26","startHours":27.438312173007905,"endHours":28.438312173007905,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:26","end":"05:26","startHours":28.438312173007905,"endHours":29.438312173007905,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:26","end":"06:26","startHours":29.438312173007905,"endHours":30.438312173007905,"planetary_lord":"Mercury"}],"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","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-12.575544462969587,"eotMinutes":16.360503661915228,"ayanamsa":25.6944}},"calendars":{"vikram_samvat":2188,"vikram_samvatsara":"Krodhi","saka_samvat":2053,"saka_samvatsara":"Khara","bengali_samvat":1538,"malayalam_era":1307,"nanakshahi_year":662,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Śukla Pakṣa","solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Śukla Ṣaṣṭhī · Vikram 2188 Krodhi · Śaka 2053 Khara"},"festivals":[{"id":"chhath-puja","name":"Chhaṭh Pūjā","name_sanskrit":"छठ पूजा","tradition":"Regional","associated_deity":"Sūrya + Chhaṭhī Mātā","significance":"Bihar/UP festival worshiping Sūrya. 6th day of Kārtika Śukla.","vrata":true,"detection":{"tithi_number":6,"tithi_paksha":"Śukla","lunar_month":"Kārtika"},"precedence":2},{"id":"tula-sankranti","name":"Tulā Saṅkrānti","name_sanskrit":"तुला सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Libra.","vrata":false,"detection":{"sun_rashi":"Tulā"},"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 October 27, 2131 CE · Ṛṣikeśa · Vidhyamitra","description":"October 27, 2131 CE for Ṛṣikeśa: Śukla Ṣaṣṭhī, sūryodaya 06:26, sūryāsta 17:35.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2131-10-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2131-10-27","sa":"https://sa.vidhyamitra.com/city/rishikesh/2131-10-27","hi":"https://hi.vidhyamitra.com/city/rishikesh/2131-10-27","x-default":"https://vidhyamitra.com/city/rishikesh/2131-10-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-23T02:51:11.444Z","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":"2026-05-23T02:51:11.444Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-23T02:51:11.444Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}