{"id":"vidhyamitra:city-day:rishikesh:2108-10-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2108-10-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2108-10-12","date_display":"October 12, 2108 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":2108,"month":10,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2491275.770833,"kali_year":5210,"ahargana":1902810.2708,"sun":{"sidereal_longitude":172.495,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":262.1564,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":89.6614,"elapsed_within_tithi_degrees":5.6614},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3,"moon_longitude":262.1564,"elapsed_within_degrees":8.823},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":74.6514},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2108,"month":10,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2491275.770833,"ahargana":1902810.2708,"kali_year":5210,"ayanamsa_lahiri":25.3726,"grahas":{"sun":{"sidereal_longitude":173.49990300000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":266.016803,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false,"latitude":4.3981},"mars":{"sidereal_longitude":227.27090299999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":159.02280300000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":86.88660299999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"venus":{"sidereal_longitude":139.04060300000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":266.308303,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":159.9549,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":339.9549,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","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":2108,"month":10,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2491275.770833,"kali_year":5210,"ahargana":1902810.2708,"sun":{"sidereal_longitude":172.495,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":262.1564,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":89.6614,"elapsed_within_tithi_degrees":5.6614},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3,"moon_longitude":262.1564,"elapsed_within_degrees":8.823},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":74.6514},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.398,"elongation":89.661},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.398,"opposition_distance":90.339}},"eclipse_window_40days":[{"offset_days":-7,"type":"solar","occurs":true,"moon_latitude":0.394,"elongation":0.235}]},"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":"06:16","sunsetLocal":"17:49","solarNoonLocal":"12:03","dayLengthHours":11.554983828564303,"dayLengthDisplay":"11 Hours 33 Mins 18 Secs","nightLengthDisplay":"12 Hours 26 Mins 42 Secs","moonriseLocal":"13:03","moonsetLocal":"23:22","rahuKala":{"name":"Rāhu Kāla","start":"10:36","end":"12:03","startHours":10.600795906609797,"endHours":12.045168885180335,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:56","end":"16:23","startHours":14.93391484232141,"endHours":16.37828782089195,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:43","end":"09:09","startHours":7.71204994946872,"endHours":9.156422928039259,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:58","end":"09:21","startHours":8.963839864229854,"endHours":9.349005991848664,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:45","end":"07:03","startHours":6.749134630421695,"endHours":7.057267532516743,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:26","startHours":11.660002757561525,"endHours":12.430335012799144,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:44","end":"05:30","startHours":4.727012460422942,"endHours":5.497344715660562,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:18","end":"06:16","startHours":5.304761651851157,"endHours":6.267676970898182,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:58","end":"14:44","startHours":13.970999523274385,"endHours":14.741331778512006,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:37","end":"18:01","startHours":17.622660799462487,"endHours":18.022660799462486,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:49","end":"18:18","startHours":17.822660799462486,"endHours":18.304118458986,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:34","end":"19:19","startHours":17.572660799462486,"endHours":19.322660799462486,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:26","startHours":23.660002757561525,"endHours":24.430335012799144,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:16","end":"07:43","startHours":6.267676970898182,"endHours":7.71204994946872,"quality":"neutral"},{"name":"Labha","start":"07:43","end":"09:09","startHours":7.71204994946872,"endHours":9.156422928039259,"quality":"auspicious"},{"name":"Amṛta","start":"09:09","end":"10:36","startHours":9.156422928039259,"endHours":10.600795906609797,"quality":"auspicious"},{"name":"Kāla","start":"10:36","end":"12:03","startHours":10.600795906609797,"endHours":12.045168885180335,"quality":"inauspicious"},{"name":"Śubha","start":"12:03","end":"13:29","startHours":12.045168885180335,"endHours":13.489541863750873,"quality":"auspicious"},{"name":"Roga","start":"13:29","end":"14:56","startHours":13.489541863750873,"endHours":14.93391484232141,"quality":"inauspicious"},{"name":"Udveg","start":"14:56","end":"16:23","startHours":14.93391484232141,"endHours":16.37828782089195,"quality":"inauspicious"},{"name":"Chala","start":"16:23","end":"17:49","startHours":16.37828782089195,"endHours":17.822660799462486,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:49","end":"19:23","startHours":17.822660799462486,"endHours":19.37828782089195,"quality":"inauspicious"},{"name":"Udveg","start":"19:23","end":"20:56","startHours":19.37828782089195,"endHours":20.93391484232141,"quality":"inauspicious"},{"name":"Chala","start":"20:56","end":"22:29","startHours":20.93391484232141,"endHours":22.489541863750873,"quality":"neutral"},{"name":"Labha","start":"22:29","end":"00:03","startHours":22.489541863750873,"endHours":24.045168885180335,"quality":"auspicious"},{"name":"Amṛta","start":"00:03","end":"01:36","startHours":24.045168885180335,"endHours":25.600795906609797,"quality":"auspicious"},{"name":"Kāla","start":"01:36","end":"03:09","startHours":25.600795906609797,"endHours":27.15642292803926,"quality":"inauspicious"},{"name":"Śubha","start":"03:09","end":"04:43","startHours":27.15642292803926,"endHours":28.71204994946872,"quality":"auspicious"},{"name":"Roga","start":"04:43","end":"06:16","startHours":28.71204994946872,"endHours":30.267676970898183,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:16","end":"07:16","startHours":6.267676970898182,"endHours":7.267676970898182,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:16","end":"08:16","startHours":7.267676970898182,"endHours":8.267676970898183,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:16","end":"09:16","startHours":8.267676970898183,"endHours":9.267676970898183,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:16","end":"10:16","startHours":9.267676970898183,"endHours":10.267676970898183,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:16","end":"11:16","startHours":10.267676970898183,"endHours":11.267676970898183,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:16","end":"12:16","startHours":11.267676970898183,"endHours":12.267676970898183,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:16","end":"13:16","startHours":12.267676970898183,"endHours":13.267676970898183,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:16","end":"14:16","startHours":13.267676970898183,"endHours":14.267676970898183,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:16","end":"15:16","startHours":14.267676970898183,"endHours":15.267676970898183,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:16","end":"16:16","startHours":15.267676970898183,"endHours":16.267676970898183,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:16","end":"17:16","startHours":16.267676970898183,"endHours":17.267676970898183,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:16","end":"18:16","startHours":17.267676970898183,"endHours":18.267676970898183,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:16","end":"19:16","startHours":18.267676970898183,"endHours":19.267676970898183,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:16","end":"20:16","startHours":19.267676970898183,"endHours":20.267676970898183,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:16","end":"21:16","startHours":20.267676970898183,"endHours":21.267676970898183,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:16","end":"22:16","startHours":21.267676970898183,"endHours":22.267676970898183,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:16","end":"23:16","startHours":22.267676970898183,"endHours":23.267676970898183,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:16","end":"00:16","startHours":23.267676970898183,"endHours":24.267676970898183,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:16","end":"01:16","startHours":24.267676970898183,"endHours":25.267676970898183,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:16","end":"02:16","startHours":25.267676970898183,"endHours":26.267676970898183,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:16","end":"03:16","startHours":26.267676970898183,"endHours":27.267676970898183,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:16","end":"04:16","startHours":27.267676970898183,"endHours":28.267676970898183,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:16","end":"05:16","startHours":28.267676970898183,"endHours":29.267676970898183,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:16","end":"06:16","startHours":29.267676970898183,"endHours":30.267676970898183,"planetary_lord":"Mars"}],"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":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-7.39169605435026,"eotMinutes":14.219466889179907,"ayanamsa":25.3726}},"calendars":{"vikram_samvat":2165,"vikram_samvatsara":"Vṛṣa","saka_samvat":2030,"saka_samvatsara":"Vibhava","bengali_samvat":1515,"malayalam_era":1284,"nanakshahi_year":639,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Aṣṭamī · Vikram 2165 Vṛṣa · Śaka 2030 Vibhava"},"festivals":[{"id":"durga-ashtami","name":"Mahā-Aṣṭamī (Durgā-Aṣṭamī)","name_sanskrit":"महाष्टमी","tradition":"Shakta","associated_deity":"Devī Durgā","significance":"8th day of Śāradīya Navrātri; Mahiṣāsura-mardinī kṣaṇa.","vrata":true,"detection":{"tithi_number":8,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":1},{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 12, 2108 CE · Ṛṣikeśa · Vidhyamitra","description":"October 12, 2108 CE for Ṛṣikeśa: Śukla Aṣṭamī, sūryodaya 06:16, sūryāsta 17:49.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2108-10-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2108-10-12","sa":"https://sa.vidhyamitra.com/city/rishikesh/2108-10-12","hi":"https://hi.vidhyamitra.com/city/rishikesh/2108-10-12","x-default":"https://vidhyamitra.com/city/rishikesh/2108-10-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-22T13:20:59.545Z","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":"2026-05-22T13:20:59.545Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-22T13:20:59.545Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}