{"id":"vidhyamitra:city-day:rishikesh:2173-09-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2173-09-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2173-09-23","date_display":"September 23, 2173 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":2173,"month":9,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514997.770833,"kali_year":5275,"ahargana":1926532.2708,"sun":{"sidereal_longitude":153.0205,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":352.8731,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":199.8526,"elapsed_within_tithi_degrees":7.8526},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":352.8731,"elapsed_within_degrees":6.2064},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":145.8936},"karana":{"half_tithi_index":33,"name":"Gara"},"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":2173,"month":9,"day":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2514997.770833,"ahargana":1926532.2708,"kali_year":5275,"ayanamsa_lahiri":26.2798,"grahas":{"sun":{"sidereal_longitude":154.18014800000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":353.315948,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false,"latitude":0.767},"mars":{"sidereal_longitude":122.554348,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":163.440248,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":224.89214800000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":197.73654799999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":343.15614800000003,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":343.0492,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":163.0492,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":2173,"month":9,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514997.770833,"kali_year":5275,"ahargana":1926532.2708,"sun":{"sidereal_longitude":153.0205,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":352.8731,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":199.8526,"elapsed_within_tithi_degrees":7.8526},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":352.8731,"elapsed_within_degrees":6.2064},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":145.8936},"karana":{"half_tithi_index":33,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.767,"elongation":160.147},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.767,"opposition_distance":19.853}},"eclipse_window_40days":[{"offset_days":14,"type":"solar","occurs":true,"moon_latitude":-0.348,"elongation":0.001}]},"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":"06:05","sunsetLocal":"18:12","solarNoonLocal":"12:08","dayLengthHours":12.114229948958402,"dayLengthDisplay":"12 Hours 06 Mins 51 Secs","nightLengthDisplay":"11 Hours 53 Mins 09 Secs","moonriseLocal":"19:04","moonsetLocal":"07:46","rahuKala":{"name":"Rāhu Kāla","start":"13:39","end":"15:10","startHours":13.655838176957047,"endHours":15.170116920576847,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:05","end":"07:36","startHours":6.084444458858046,"endHours":7.598723202477847,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:07","end":"10:38","startHours":9.113001946097647,"endHours":10.627280689717447,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:19","startHours":8.911098113615006,"endHours":9.314905778580286,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:35","end":"06:55","startHours":6.589204040064646,"endHours":6.91225017203687,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:33","startHours":11.737751768371966,"endHours":12.545367098302526,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:28","end":"05:17","startHours":4.469213798996926,"endHours":5.276829128927486,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:04","end":"06:05","startHours":5.074925296444846,"endHours":6.084444458858046,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:58","startHours":14.160597758163647,"endHours":14.968213088094206,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:00","end":"18:24","startHours":17.99867440781645,"endHours":18.398674407816447,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:12","end":"18:42","startHours":18.198674407816448,"endHours":18.703433989023047,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:57","end":"19:42","startHours":17.948674407816448,"endHours":19.698674407816448,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:33","startHours":23.737751768371965,"endHours":24.545367098302528,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:05","end":"07:36","startHours":6.084444458858046,"endHours":7.598723202477847,"quality":"auspicious"},{"name":"Roga","start":"07:36","end":"09:07","startHours":7.598723202477847,"endHours":9.113001946097647,"quality":"inauspicious"},{"name":"Udveg","start":"09:07","end":"10:38","startHours":9.113001946097647,"endHours":10.627280689717447,"quality":"inauspicious"},{"name":"Chala","start":"10:38","end":"12:08","startHours":10.627280689717447,"endHours":12.141559433337246,"quality":"neutral"},{"name":"Labha","start":"12:08","end":"13:39","startHours":12.141559433337246,"endHours":13.655838176957047,"quality":"auspicious"},{"name":"Amṛta","start":"13:39","end":"15:10","startHours":13.655838176957047,"endHours":15.170116920576847,"quality":"auspicious"},{"name":"Kāla","start":"15:10","end":"16:41","startHours":15.170116920576847,"endHours":16.68439566419665,"quality":"inauspicious"},{"name":"Śubha","start":"16:41","end":"18:12","startHours":16.68439566419665,"endHours":18.198674407816448,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:12","end":"19:41","startHours":18.198674407816448,"endHours":19.684395664196646,"quality":"auspicious"},{"name":"Kāla","start":"19:41","end":"21:10","startHours":19.684395664196646,"endHours":21.17011692057685,"quality":"inauspicious"},{"name":"Śubha","start":"21:10","end":"22:39","startHours":21.17011692057685,"endHours":22.655838176957047,"quality":"auspicious"},{"name":"Roga","start":"22:39","end":"00:08","startHours":22.655838176957047,"endHours":24.141559433337246,"quality":"inauspicious"},{"name":"Udveg","start":"00:08","end":"01:38","startHours":24.141559433337246,"endHours":25.627280689717445,"quality":"inauspicious"},{"name":"Chala","start":"01:38","end":"03:07","startHours":25.627280689717445,"endHours":27.113001946097647,"quality":"neutral"},{"name":"Labha","start":"03:07","end":"04:36","startHours":27.113001946097647,"endHours":28.598723202477846,"quality":"auspicious"},{"name":"Amṛta","start":"04:36","end":"06:05","startHours":28.598723202477846,"endHours":30.084444458858044,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:05","end":"07:05","startHours":6.084444458858046,"endHours":7.084444458858046,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:05","end":"08:05","startHours":7.084444458858046,"endHours":8.084444458858046,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:05","end":"09:05","startHours":8.084444458858046,"endHours":9.084444458858046,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:05","end":"10:05","startHours":9.084444458858046,"endHours":10.084444458858046,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:05","end":"11:05","startHours":10.084444458858046,"endHours":11.084444458858046,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:05","end":"12:05","startHours":11.084444458858046,"endHours":12.084444458858046,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:05","end":"13:05","startHours":12.084444458858046,"endHours":13.084444458858046,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:05","end":"14:05","startHours":13.084444458858046,"endHours":14.084444458858046,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:05","end":"15:05","startHours":14.084444458858046,"endHours":15.084444458858046,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:05","end":"16:05","startHours":15.084444458858046,"endHours":16.084444458858044,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:05","end":"17:05","startHours":16.084444458858044,"endHours":17.084444458858044,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:05","end":"18:05","startHours":17.084444458858044,"endHours":18.084444458858044,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:05","end":"19:05","startHours":18.084444458858044,"endHours":19.084444458858044,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:05","end":"20:05","startHours":19.084444458858044,"endHours":20.084444458858044,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:05","end":"21:05","startHours":20.084444458858044,"endHours":21.084444458858044,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:05","end":"22:05","startHours":21.084444458858044,"endHours":22.084444458858044,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:05","end":"23:05","startHours":22.084444458858044,"endHours":23.084444458858044,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:05","end":"00:05","startHours":23.084444458858044,"endHours":24.084444458858044,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:05","end":"01:05","startHours":24.084444458858044,"endHours":25.084444458858044,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:05","end":"02:05","startHours":25.084444458858044,"endHours":26.084444458858044,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:05","end":"03:05","startHours":26.084444458858044,"endHours":27.084444458858044,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:05","end":"04:05","startHours":27.084444458858044,"endHours":28.084444458858044,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:05","end":"05:05","startHours":28.084444458858044,"endHours":29.084444458858044,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:05","end":"06:05","startHours":29.084444458858044,"endHours":30.084444458858044,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Lumba","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":-0.18293459605124293,"eotMinutes":8.436033999765183,"ayanamsa":26.2798}},"calendars":{"vikram_samvat":2230,"vikram_samvatsara":"Vyaya","saka_samvat":2095,"saka_samvatsara":"Śrīmukha","bengali_samvat":1580,"malayalam_era":1349,"nanakshahi_year":704,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","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":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Dvitīyā · Vikram 2230 Vyaya · Śaka 2095 Śrīmukha"},"festivals":[],"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":[]},"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 23, 2173 CE · Ṛṣikeśa · Vidhyamitra","description":"September 23, 2173 CE for Ṛṣikeśa: Kṛṣṇa Dvitīyā, sūryodaya 06:05, sūryāsta 18:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2173-09-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2173-09-23","sa":"https://sa.vidhyamitra.com/city/rishikesh/2173-09-23","hi":"https://hi.vidhyamitra.com/city/rishikesh/2173-09-23","x-default":"https://vidhyamitra.com/city/rishikesh/2173-09-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T23:57:29.298Z","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":"2026-05-30T23:57:29.298Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T23:57:29.298Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}