{"id":"vidhyamitra:city-day:rishikesh:2177-10-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2177-10-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2177-10-01","date_display":"October 1, 2177 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":2177,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2516466.770833,"kali_year":5279,"ahargana":1928001.2708,"sun":{"sidereal_longitude":160.8144,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":263.6143,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":102.8,"elapsed_within_tithi_degrees":6.8},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4,"moon_longitude":263.6143,"elapsed_within_degrees":10.281},"yoga":{"number":5,"name":"Śobhana","sum_longitude":64.4287},"karana":{"half_tithi_index":17,"name":"Kaulava"},"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":2177,"month":10,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2516466.770833,"ahargana":1928001.2708,"kali_year":5279,"ayanamsa_lahiri":26.336,"grahas":{"sun":{"sidereal_longitude":161.991621,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"moon":{"sidereal_longitude":264.8638209999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false,"latitude":-0.1255},"mars":{"sidereal_longitude":151.654021,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":179.76002100000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":9.444120999999996,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":true},"venus":{"sidereal_longitude":146.74472100000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":39.771120999999994,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":265.2145,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":85.2145,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","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":2177,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2516466.770833,"kali_year":5279,"ahargana":1928001.2708,"sun":{"sidereal_longitude":160.8144,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":263.6143,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":102.8,"elapsed_within_tithi_degrees":6.8},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4,"moon_longitude":263.6143,"elapsed_within_degrees":10.281},"yoga":{"number":5,"name":"Śobhana","sum_longitude":64.4287},"karana":{"half_tithi_index":17,"name":"Kaulava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.126,"elongation":102.8},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.126,"opposition_distance":77.2}},"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":"06:10","sunsetLocal":"18:02","solarNoonLocal":"12:06","dayLengthHours":11.873175807829014,"dayLengthDisplay":"11 Hours 52 Mins 23 Secs","nightLengthDisplay":"12 Hours 07 Mins 37 Secs","moonriseLocal":"13:48","moonsetLocal":"00:07","rahuKala":{"name":"Rāhu Kāla","start":"12:06","end":"13:35","startHours":12.096030596890259,"endHours":13.580177572868887,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:39","end":"09:08","startHours":7.643589668954379,"endHours":9.127736644933005,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:37","end":"12:06","startHours":10.611883620911634,"endHours":12.096030596890259,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:56","end":"09:20","startHours":8.929850381469189,"endHours":9.325622908396824,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:39","end":"06:58","startHours":6.654158351635295,"endHours":6.970776373177402,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:42","end":"12:30","startHours":11.700258069962626,"endHours":12.491803123817892,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:35","end":"05:22","startHours":4.576352585265218,"endHours":5.367897639120485,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:10","end":"06:10","startHours":5.170011375656668,"endHours":6.159442692975753,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:04","end":"14:52","startHours":14.074893231528428,"endHours":14.866438285383696,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:50","end":"18:14","startHours":17.832618500804767,"endHours":18.232618500804765,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:02","end":"18:32","startHours":18.032618500804766,"endHours":18.52733415946431,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:47","end":"19:32","startHours":17.782618500804766,"endHours":19.532618500804766,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:42","end":"00:30","startHours":23.700258069962626,"endHours":24.491803123817892,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:10","end":"07:39","startHours":6.159442692975753,"endHours":7.643589668954379,"quality":"auspicious"},{"name":"Amṛta","start":"07:39","end":"09:08","startHours":7.643589668954379,"endHours":9.127736644933005,"quality":"auspicious"},{"name":"Kāla","start":"09:08","end":"10:37","startHours":9.127736644933005,"endHours":10.611883620911634,"quality":"inauspicious"},{"name":"Śubha","start":"10:37","end":"12:06","startHours":10.611883620911634,"endHours":12.096030596890259,"quality":"auspicious"},{"name":"Roga","start":"12:06","end":"13:35","startHours":12.096030596890259,"endHours":13.580177572868887,"quality":"inauspicious"},{"name":"Udveg","start":"13:35","end":"15:04","startHours":13.580177572868887,"endHours":15.064324548847512,"quality":"inauspicious"},{"name":"Chala","start":"15:04","end":"16:33","startHours":15.064324548847512,"endHours":16.54847152482614,"quality":"neutral"},{"name":"Labha","start":"16:33","end":"18:02","startHours":16.54847152482614,"endHours":18.032618500804766,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:02","end":"19:33","startHours":18.032618500804766,"endHours":19.54847152482614,"quality":"inauspicious"},{"name":"Chala","start":"19:33","end":"21:04","startHours":19.54847152482614,"endHours":21.064324548847512,"quality":"neutral"},{"name":"Labha","start":"21:04","end":"22:35","startHours":21.064324548847512,"endHours":22.580177572868884,"quality":"auspicious"},{"name":"Amṛta","start":"22:35","end":"00:06","startHours":22.580177572868884,"endHours":24.09603059689026,"quality":"auspicious"},{"name":"Kāla","start":"00:06","end":"01:37","startHours":24.09603059689026,"endHours":25.611883620911634,"quality":"inauspicious"},{"name":"Śubha","start":"01:37","end":"03:08","startHours":25.611883620911634,"endHours":27.127736644933005,"quality":"auspicious"},{"name":"Roga","start":"03:08","end":"04:39","startHours":27.127736644933005,"endHours":28.643589668954377,"quality":"inauspicious"},{"name":"Udveg","start":"04:39","end":"06:10","startHours":28.643589668954377,"endHours":30.15944269297575,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:10","end":"07:10","startHours":6.159442692975753,"endHours":7.159442692975753,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:10","end":"08:10","startHours":7.159442692975753,"endHours":8.159442692975752,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:10","end":"09:10","startHours":8.159442692975752,"endHours":9.159442692975752,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:10","end":"10:10","startHours":9.159442692975752,"endHours":10.159442692975752,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:10","end":"11:10","startHours":10.159442692975752,"endHours":11.159442692975752,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:10","end":"12:10","startHours":11.159442692975752,"endHours":12.159442692975752,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:10","end":"13:10","startHours":12.159442692975752,"endHours":13.159442692975752,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:10","end":"14:10","startHours":13.159442692975752,"endHours":14.159442692975752,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:10","end":"15:10","startHours":14.159442692975752,"endHours":15.159442692975752,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:10","end":"16:10","startHours":15.159442692975752,"endHours":16.15944269297575,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:10","end":"17:10","startHours":16.15944269297575,"endHours":17.15944269297575,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:10","end":"18:10","startHours":17.15944269297575,"endHours":18.15944269297575,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:10","end":"19:10","startHours":18.15944269297575,"endHours":19.15944269297575,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:10","end":"20:10","startHours":19.15944269297575,"endHours":20.15944269297575,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:10","end":"21:10","startHours":20.15944269297575,"endHours":21.15944269297575,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:10","end":"22:10","startHours":21.15944269297575,"endHours":22.15944269297575,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:10","end":"23:10","startHours":22.15944269297575,"endHours":23.15944269297575,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:10","end":"00:10","startHours":23.15944269297575,"endHours":24.15944269297575,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:10","end":"01:10","startHours":24.15944269297575,"endHours":25.15944269297575,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:10","end":"02:10","startHours":25.15944269297575,"endHours":26.15944269297575,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:10","end":"03:10","startHours":26.15944269297575,"endHours":27.15944269297575,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:10","end":"04:10","startHours":27.15944269297575,"endHours":28.15944269297575,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:10","end":"05:10","startHours":28.15944269297575,"endHours":29.15944269297575,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:10","end":"06:10","startHours":29.15944269297575,"endHours":30.15944269297575,"planetary_lord":"Sun"}],"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":"North (Uttara)","chandraVasa":"East","rahuVasa":"South-West","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-3.302344020852152,"eotMinutes":11.167764186584405,"ayanamsa":26.336}},"calendars":{"vikram_samvat":2234,"vikram_samvatsara":"Vikṛti","saka_samvat":2099,"saka_samvatsara":"Īśvara","bengali_samvat":1584,"malayalam_era":1353,"nanakshahi_year":708,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Navamī · Vikram 2234 Vikṛti · Śaka 2099 Īśvara"},"festivals":[{"id":"mahanavami","name":"Mahā-Navamī","name_sanskrit":"महानवमी","tradition":"Shakta","associated_deity":"Devī Durgā","significance":"9th day of Śāradīya Navrātri; Devī's final victory.","vrata":true,"detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":1}],"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":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","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 1, 2177 CE · Ṛṣikeśa · Vidhyamitra","description":"October 1, 2177 CE for Ṛṣikeśa: Śukla Navamī, sūryodaya 06:10, sūryāsta 18:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2177-10-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2177-10-01","sa":"https://sa.vidhyamitra.com/city/rishikesh/2177-10-01","hi":"https://hi.vidhyamitra.com/city/rishikesh/2177-10-01","x-default":"https://vidhyamitra.com/city/rishikesh/2177-10-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T00:40:30.408Z","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":"2026-05-30T00:40:30.408Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T00:40:30.408Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}