{"id":"vidhyamitra:city-day:rishikesh:1910-09-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1910-09-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1910-09-18","date_display":"September 18, 1910 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":1910,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2418932.770833,"kali_year":5012,"ahargana":1830467.2708,"sun":{"sidereal_longitude":151.1217,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":314.8617,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":163.74,"elapsed_within_tithi_degrees":7.74},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3,"moon_longitude":314.8617,"elapsed_within_degrees":8.195},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":105.9834},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1910,"month":9,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2418932.770833,"ahargana":1830467.2708,"kali_year":5012,"ayanamsa_lahiri":22.6057,"grahas":{"sun":{"sidereal_longitude":151.639137,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":316.04553699999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false,"latitude":-4.4043},"mars":{"sidereal_longitude":156.05913699999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":168.788137,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":177.04713700000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":135.182437,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":14.33103699999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":33.0352,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":213.0352,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"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":1910,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2418932.770833,"kali_year":5012,"ahargana":1830467.2708,"sun":{"sidereal_longitude":151.1217,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":314.8617,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":163.74,"elapsed_within_tithi_degrees":7.74},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3,"moon_longitude":314.8617,"elapsed_within_degrees":8.195},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":105.9834},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.404,"elongation":163.74},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.404,"opposition_distance":16.26}},"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":"06:01","sunsetLocal":"18:19","solarNoonLocal":"12:10","dayLengthHours":12.305209743033776,"dayLengthDisplay":"12 Hours 18 Mins 19 Secs","nightLengthDisplay":"11 Hours 41 Mins 41 Secs","moonriseLocal":"17:25","moonsetLocal":"04:51","rahuKala":{"name":"Rāhu Kāla","start":"16:47","end":"18:19","startHours":16.786446617409762,"endHours":18.324597835288984,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:10","end":"13:43","startHours":12.171992963772094,"endHours":13.710144181651318,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:15","end":"16:47","startHours":15.248295399530539,"endHours":16.786446617409762,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:18","startHours":8.890603698963089,"endHours":9.300777357064215,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:32","end":"06:52","startHours":6.532105164881615,"endHours":6.860244091362516,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:35","startHours":11.761819305670969,"endHours":12.58216662187322,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:23","end":"05:12","startHours":4.3786934598507035,"endHours":5.199040776052955,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:00","end":"06:01","startHours":4.993953947002392,"endHours":6.019388092255207,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:13","end":"15:03","startHours":14.222861254277724,"endHours":15.043208570479976,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:07","end":"18:31","startHours":18.124597835288984,"endHours":18.524597835288983,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:19","end":"18:50","startHours":18.324597835288984,"endHours":18.837314907915392,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:04","end":"19:49","startHours":18.074597835288984,"endHours":19.824597835288984,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:35","startHours":23.76181930567097,"endHours":24.58216662187322,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:01","end":"07:33","startHours":6.019388092255207,"endHours":7.5575393101344295,"quality":"inauspicious"},{"name":"Chala","start":"07:33","end":"09:06","startHours":7.5575393101344295,"endHours":9.095690528013652,"quality":"neutral"},{"name":"Labha","start":"09:06","end":"10:38","startHours":9.095690528013652,"endHours":10.633841745892873,"quality":"auspicious"},{"name":"Amṛta","start":"10:38","end":"12:10","startHours":10.633841745892873,"endHours":12.171992963772094,"quality":"auspicious"},{"name":"Kāla","start":"12:10","end":"13:43","startHours":12.171992963772094,"endHours":13.710144181651318,"quality":"inauspicious"},{"name":"Śubha","start":"13:43","end":"15:15","startHours":13.710144181651318,"endHours":15.248295399530539,"quality":"auspicious"},{"name":"Roga","start":"15:15","end":"16:47","startHours":15.248295399530539,"endHours":16.786446617409762,"quality":"inauspicious"},{"name":"Udveg","start":"16:47","end":"18:19","startHours":16.786446617409762,"endHours":18.324597835288984,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:19","end":"19:47","startHours":18.324597835288984,"endHours":19.786446617409762,"quality":"auspicious"},{"name":"Roga","start":"19:47","end":"21:15","startHours":19.786446617409762,"endHours":21.24829539953054,"quality":"inauspicious"},{"name":"Udveg","start":"21:15","end":"22:43","startHours":21.24829539953054,"endHours":22.710144181651316,"quality":"inauspicious"},{"name":"Chala","start":"22:43","end":"00:10","startHours":22.710144181651316,"endHours":24.171992963772094,"quality":"neutral"},{"name":"Labha","start":"00:10","end":"01:38","startHours":24.171992963772094,"endHours":25.633841745892873,"quality":"auspicious"},{"name":"Amṛta","start":"01:38","end":"03:06","startHours":25.633841745892873,"endHours":27.09569052801365,"quality":"auspicious"},{"name":"Kāla","start":"03:06","end":"04:33","startHours":27.09569052801365,"endHours":28.55753931013443,"quality":"inauspicious"},{"name":"Śubha","start":"04:33","end":"06:01","startHours":28.55753931013443,"endHours":30.019388092255205,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:01","end":"07:01","startHours":6.019388092255207,"endHours":7.019388092255207,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:01","end":"08:01","startHours":7.019388092255207,"endHours":8.019388092255207,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:01","end":"09:01","startHours":8.019388092255207,"endHours":9.019388092255207,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:01","end":"10:01","startHours":9.019388092255207,"endHours":10.019388092255207,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:01","end":"11:01","startHours":10.019388092255207,"endHours":11.019388092255207,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:01","end":"12:01","startHours":11.019388092255207,"endHours":12.019388092255207,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:01","end":"13:01","startHours":12.019388092255207,"endHours":13.019388092255207,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:01","end":"14:01","startHours":13.019388092255207,"endHours":14.019388092255207,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:01","end":"15:01","startHours":14.019388092255207,"endHours":15.019388092255207,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:01","end":"16:01","startHours":15.019388092255207,"endHours":16.019388092255205,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:01","end":"17:01","startHours":16.019388092255205,"endHours":17.019388092255205,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:01","end":"18:01","startHours":17.019388092255205,"endHours":18.019388092255205,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:01","end":"19:01","startHours":18.019388092255205,"endHours":19.019388092255205,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:01","end":"20:01","startHours":19.019388092255205,"endHours":20.019388092255205,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:01","end":"21:01","startHours":20.019388092255205,"endHours":21.019388092255205,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:01","end":"22:01","startHours":21.019388092255205,"endHours":22.019388092255205,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:01","end":"23:01","startHours":22.019388092255205,"endHours":23.019388092255205,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:01","end":"00:01","startHours":23.019388092255205,"endHours":24.019388092255205,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:01","end":"01:01","startHours":24.019388092255205,"endHours":25.019388092255205,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:01","end":"02:01","startHours":25.019388092255205,"endHours":26.019388092255205,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:01","end":"03:01","startHours":26.019388092255205,"endHours":27.019388092255205,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:01","end":"04:01","startHours":27.019388092255205,"endHours":28.019388092255205,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:01","end":"05:01","startHours":28.019388092255205,"endHours":29.019388092255205,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:01","end":"06:01","startHours":29.019388092255205,"endHours":30.019388092255205,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":2.2857741868903356,"eotMinutes":6.610022173674397,"ayanamsa":22.6057}},"calendars":{"vikram_samvat":1967,"vikram_samvatsara":"Rudhirodgāri","saka_samvat":1832,"saka_samvatsara":"Sādhāraṇa","bengali_samvat":1317,"malayalam_era":1086,"nanakshahi_year":441,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Caturdaśī · Vikram 1967 Rudhirodgāri · Śaka 1832 Sādhāraṇa"},"festivals":[],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 September 18, 1910 CE · Ṛṣikeśa · Vidhyamitra","description":"September 18, 1910 CE for Ṛṣikeśa: Śukla Caturdaśī, sūryodaya 06:01, sūryāsta 18:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1910-09-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1910-09-18","sa":"https://sa.vidhyamitra.com/city/rishikesh/1910-09-18","hi":"https://hi.vidhyamitra.com/city/rishikesh/1910-09-18","x-default":"https://vidhyamitra.com/city/rishikesh/1910-09-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T13:14:35.296Z","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":"2026-06-01T13:14:35.296Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T13:14:35.296Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}