{"id":"vidhyamitra:city-day:rishikesh:2031-10-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2031-10-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2031-10-23","date_display":"October 23, 2031 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":2031,"month":10,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2463162.770833,"kali_year":5133,"ahargana":1874697.2708,"sun":{"sidereal_longitude":184.3444,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":270.5086,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":86.1641,"elapsed_within_tithi_degrees":2.1641},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":270.5086,"elapsed_within_degrees":3.8419},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":94.853},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2031,"month":10,"day":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2463162.770833,"ahargana":1874697.2708,"kali_year":5133,"ayanamsa_lahiri":24.2973,"grahas":{"sun":{"sidereal_longitude":185.13892599999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":271.535026,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false,"latitude":3.9345},"mars":{"sidereal_longitude":254.15902600000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":202.80062599999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":241.21552600000007,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"venus":{"sidereal_longitude":138.31712600000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":58.261825999999985,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":209.5169,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":29.5169,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","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":2031,"month":10,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2463162.770833,"kali_year":5133,"ahargana":1874697.2708,"sun":{"sidereal_longitude":184.3444,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":270.5086,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":86.1641,"elapsed_within_tithi_degrees":2.1641},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":270.5086,"elapsed_within_degrees":3.8419},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":94.853},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.935,"elongation":86.164},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.935,"opposition_distance":93.836}},"eclipse_window_40days":[{"offset_days":7,"type":"lunar","occurs":true,"moon_latitude":1.494,"opposition_distance":1.604}]},"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":"06:23","sunsetLocal":"17:38","solarNoonLocal":"12:01","dayLengthHours":11.247491127063952,"dayLengthDisplay":"11 Hours 14 Mins 51 Secs","nightLengthDisplay":"12 Hours 45 Mins 09 Secs","moonriseLocal":"12:35","moonsetLocal":"22:58","rahuKala":{"name":"Rāhu Kāla","start":"13:25","end":"14:50","startHours":13.420472475798103,"endHours":14.826408866681096,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:23","end":"07:48","startHours":6.390790521383132,"endHours":7.796726912266126,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:12","end":"10:37","startHours":9.20266330314912,"endHours":10.608599694032115,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:01","end":"09:23","startHours":9.015205117698054,"endHours":9.390121488600187,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:52","end":"07:10","startHours":6.859435985010797,"endHours":7.159369081732502,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:38","end":"12:23","startHours":11.639619714012976,"endHours":12.389452455817239,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:53","end":"05:38","startHours":4.891125037774605,"endHours":5.640957779578868,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:27","end":"06:23","startHours":5.453499594127803,"endHours":6.390790521383132,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:53","end":"14:38","startHours":13.889117939425766,"endHours":14.63895068123003,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:26","end":"17:50","startHours":17.438281648447084,"endHours":17.838281648447083,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:38","end":"18:06","startHours":17.638281648447084,"endHours":18.10692711207475,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:23","end":"19:08","startHours":17.388281648447084,"endHours":19.138281648447084,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:38","end":"00:23","startHours":23.639619714012976,"endHours":24.38945245581724,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:23","end":"07:48","startHours":6.390790521383132,"endHours":7.796726912266126,"quality":"auspicious"},{"name":"Roga","start":"07:48","end":"09:12","startHours":7.796726912266126,"endHours":9.20266330314912,"quality":"inauspicious"},{"name":"Udveg","start":"09:12","end":"10:37","startHours":9.20266330314912,"endHours":10.608599694032115,"quality":"inauspicious"},{"name":"Chala","start":"10:37","end":"12:01","startHours":10.608599694032115,"endHours":12.014536084915107,"quality":"neutral"},{"name":"Labha","start":"12:01","end":"13:25","startHours":12.014536084915107,"endHours":13.420472475798103,"quality":"auspicious"},{"name":"Amṛta","start":"13:25","end":"14:50","startHours":13.420472475798103,"endHours":14.826408866681096,"quality":"auspicious"},{"name":"Kāla","start":"14:50","end":"16:14","startHours":14.826408866681096,"endHours":16.23234525756409,"quality":"inauspicious"},{"name":"Śubha","start":"16:14","end":"17:38","startHours":16.23234525756409,"endHours":17.638281648447084,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:38","end":"19:14","startHours":17.638281648447084,"endHours":19.23234525756409,"quality":"auspicious"},{"name":"Kāla","start":"19:14","end":"20:50","startHours":19.23234525756409,"endHours":20.826408866681096,"quality":"inauspicious"},{"name":"Śubha","start":"20:50","end":"22:25","startHours":20.826408866681096,"endHours":22.4204724757981,"quality":"auspicious"},{"name":"Roga","start":"22:25","end":"00:01","startHours":22.4204724757981,"endHours":24.014536084915107,"quality":"inauspicious"},{"name":"Udveg","start":"00:01","end":"01:37","startHours":24.014536084915107,"endHours":25.608599694032115,"quality":"inauspicious"},{"name":"Chala","start":"01:37","end":"03:12","startHours":25.608599694032115,"endHours":27.20266330314912,"quality":"neutral"},{"name":"Labha","start":"03:12","end":"04:48","startHours":27.20266330314912,"endHours":28.796726912266124,"quality":"auspicious"},{"name":"Amṛta","start":"04:48","end":"06:23","startHours":28.796726912266124,"endHours":30.39079052138313,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:23","end":"07:23","startHours":6.390790521383132,"endHours":7.390790521383132,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:23","end":"08:23","startHours":7.390790521383132,"endHours":8.390790521383131,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:23","end":"09:23","startHours":8.390790521383131,"endHours":9.390790521383131,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:23","end":"10:23","startHours":9.390790521383131,"endHours":10.390790521383131,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:23","end":"11:23","startHours":10.390790521383131,"endHours":11.390790521383131,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:23","end":"12:23","startHours":11.390790521383131,"endHours":12.390790521383131,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:23","end":"13:23","startHours":12.390790521383131,"endHours":13.390790521383131,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:23","end":"14:23","startHours":13.390790521383131,"endHours":14.390790521383131,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:23","end":"15:23","startHours":14.390790521383131,"endHours":15.390790521383131,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:23","end":"16:23","startHours":15.390790521383131,"endHours":16.39079052138313,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:23","end":"17:23","startHours":16.39079052138313,"endHours":17.39079052138313,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:23","end":"18:23","startHours":17.39079052138313,"endHours":18.39079052138313,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:23","end":"19:23","startHours":18.39079052138313,"endHours":19.39079052138313,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:23","end":"20:23","startHours":19.39079052138313,"endHours":20.39079052138313,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:23","end":"21:23","startHours":20.39079052138313,"endHours":21.39079052138313,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:23","end":"22:23","startHours":21.39079052138313,"endHours":22.39079052138313,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:23","end":"23:23","startHours":22.39079052138313,"endHours":23.39079052138313,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:23","end":"00:23","startHours":23.39079052138313,"endHours":24.39079052138313,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:23","end":"01:23","startHours":24.39079052138313,"endHours":25.39079052138313,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:23","end":"02:23","startHours":25.39079052138313,"endHours":26.39079052138313,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:23","end":"03:23","startHours":26.39079052138313,"endHours":27.39079052138313,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:23","end":"04:23","startHours":27.39079052138313,"endHours":28.39079052138313,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:23","end":"05:23","startHours":28.39079052138313,"endHours":29.39079052138313,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:23","end":"06:23","startHours":29.39079052138313,"endHours":30.39079052138313,"planetary_lord":"Moon"}],"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","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"drikRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-11.272029351263997,"eotMinutes":16.057434905093558,"ayanamsa":24.2973}},"calendars":{"vikram_samvat":2088,"vikram_samvatsara":"Raktākṣī","saka_samvat":1953,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1438,"malayalam_era":1207,"nanakshahi_year":562,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Śukla Pakṣa","solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Śukla Aṣṭamī · Vikram 2088 Raktākṣī · Śaka 1953 Virodhakṛt"},"festivals":[{"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":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","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 October 23, 2031 CE · Ṛṣikeśa · Vidhyamitra","description":"October 23, 2031 CE for Ṛṣikeśa: Śukla Aṣṭamī, sūryodaya 06:23, sūryāsta 17:38.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2031-10-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2031-10-23","sa":"https://sa.vidhyamitra.com/city/rishikesh/2031-10-23","hi":"https://hi.vidhyamitra.com/city/rishikesh/2031-10-23","x-default":"https://vidhyamitra.com/city/rishikesh/2031-10-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T04:36:28.977Z","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":"2026-05-15T04:36:28.977Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T04:36:28.977Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}