{"id":"vidhyamitra:city-day:rishikesh:2073-05-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2073-05-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2073-05-18","date_display":"May 18, 2073 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":2073,"month":5,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2478345.770833,"kali_year":5175,"ahargana":1889880.2708,"sun":{"sidereal_longitude":32.668,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":168.4647,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":135.7967,"elapsed_within_tithi_degrees":3.7967},"nakshatra":{"number":13,"name":"Hasta","pada":3,"moon_longitude":168.4647,"elapsed_within_degrees":8.4647},"yoga":{"number":16,"name":"Siddhi","sum_longitude":201.1327},"karana":{"half_tithi_index":22,"name":"Bava"},"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":2073,"month":5,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2478345.770833,"ahargana":1889880.2708,"kali_year":5175,"ayanamsa_lahiri":24.878,"grahas":{"sun":{"sidereal_longitude":32.87302399999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":166.18562399999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false,"latitude":3.0911},"mars":{"sidereal_longitude":1.329024000000004,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":51.23872399999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":74.00482399999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":345.869424,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":206.03682400000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":125.0485,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":305.0485,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":2073,"month":5,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2478345.770833,"kali_year":5175,"ahargana":1889880.2708,"sun":{"sidereal_longitude":32.668,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":168.4647,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":135.7967,"elapsed_within_tithi_degrees":3.7967},"nakshatra":{"number":13,"name":"Hasta","pada":3,"moon_longitude":168.4647,"elapsed_within_degrees":8.4647},"yoga":{"number":16,"name":"Siddhi","sum_longitude":201.1327},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.091,"elongation":135.797},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.091,"opposition_distance":44.203}},"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":"05:21","sunsetLocal":"19:05","solarNoonLocal":"12:13","dayLengthHours":13.732064617720905,"dayLengthDisplay":"13 Hours 43 Mins 55 Secs","nightLengthDisplay":"10 Hours 16 Mins 05 Secs","moonriseLocal":"15:14","moonsetLocal":"02:59","rahuKala":{"name":"Rāhu Kāla","start":"13:56","end":"15:39","startHours":13.937181707373956,"endHours":15.653689784589066,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:21","end":"07:04","startHours":5.354641321298389,"endHours":7.071149398513501,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:47","end":"10:30","startHours":8.787657475728615,"endHours":10.504165552943729,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:34","end":"09:01","startHours":8.558789732099934,"endHours":9.016525219357296,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:56","end":"06:18","startHours":5.926810680370093,"endHours":6.292999070175984,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:41","startHours":11.762938142901477,"endHours":12.678409117416203,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:31","end":"04:26","startHours":3.5236993722689345,"endHours":4.439170346783662,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:13","end":"05:21","startHours":4.21030260315498,"endHours":5.354641321298389,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:25","startHours":14.50935106644566,"endHours":15.424822040960388,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:53","end":"19:17","startHours":18.886705939019294,"endHours":19.286705939019292,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:05","end":"19:40","startHours":19.086705939019293,"endHours":19.658875298090997,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:50","end":"20:35","startHours":18.836705939019293,"endHours":20.586705939019293,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:41","startHours":23.76293814290148,"endHours":24.678409117416205,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:21","end":"07:04","startHours":5.354641321298389,"endHours":7.071149398513501,"quality":"auspicious"},{"name":"Roga","start":"07:04","end":"08:47","startHours":7.071149398513501,"endHours":8.787657475728615,"quality":"inauspicious"},{"name":"Udveg","start":"08:47","end":"10:30","startHours":8.787657475728615,"endHours":10.504165552943729,"quality":"inauspicious"},{"name":"Chala","start":"10:30","end":"12:13","startHours":10.504165552943729,"endHours":12.220673630158842,"quality":"neutral"},{"name":"Labha","start":"12:13","end":"13:56","startHours":12.220673630158842,"endHours":13.937181707373956,"quality":"auspicious"},{"name":"Amṛta","start":"13:56","end":"15:39","startHours":13.937181707373956,"endHours":15.653689784589066,"quality":"auspicious"},{"name":"Kāla","start":"15:39","end":"17:22","startHours":15.653689784589066,"endHours":17.37019786180418,"quality":"inauspicious"},{"name":"Śubha","start":"17:22","end":"19:05","startHours":17.37019786180418,"endHours":19.086705939019293,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:05","end":"20:22","startHours":19.086705939019293,"endHours":20.37019786180418,"quality":"auspicious"},{"name":"Kāla","start":"20:22","end":"21:39","startHours":20.37019786180418,"endHours":21.653689784589066,"quality":"inauspicious"},{"name":"Śubha","start":"21:39","end":"22:56","startHours":21.653689784589066,"endHours":22.937181707373952,"quality":"auspicious"},{"name":"Roga","start":"22:56","end":"00:13","startHours":22.937181707373952,"endHours":24.220673630158842,"quality":"inauspicious"},{"name":"Udveg","start":"00:13","end":"01:30","startHours":24.220673630158842,"endHours":25.504165552943725,"quality":"inauspicious"},{"name":"Chala","start":"01:30","end":"02:47","startHours":25.504165552943725,"endHours":26.787657475728615,"quality":"neutral"},{"name":"Labha","start":"02:47","end":"04:04","startHours":26.787657475728615,"endHours":28.0711493985135,"quality":"auspicious"},{"name":"Amṛta","start":"04:04","end":"05:21","startHours":28.0711493985135,"endHours":29.354641321298388,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:21","end":"06:21","startHours":5.354641321298389,"endHours":6.354641321298389,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:21","end":"07:21","startHours":6.354641321298389,"endHours":7.354641321298389,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:21","end":"08:21","startHours":7.354641321298389,"endHours":8.354641321298388,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:21","end":"09:21","startHours":8.354641321298388,"endHours":9.354641321298388,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:21","end":"10:21","startHours":9.354641321298388,"endHours":10.354641321298388,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:21","end":"11:21","startHours":10.354641321298388,"endHours":11.354641321298388,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:21","end":"12:21","startHours":11.354641321298388,"endHours":12.354641321298388,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:21","end":"13:21","startHours":12.354641321298388,"endHours":13.354641321298388,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:21","end":"14:21","startHours":13.354641321298388,"endHours":14.354641321298388,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:21","end":"15:21","startHours":14.354641321298388,"endHours":15.354641321298388,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:21","end":"16:21","startHours":15.354641321298388,"endHours":16.354641321298388,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:21","end":"17:21","startHours":16.354641321298388,"endHours":17.354641321298388,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:21","end":"18:21","startHours":17.354641321298388,"endHours":18.354641321298388,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:21","end":"19:21","startHours":18.354641321298388,"endHours":19.354641321298388,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:21","end":"20:21","startHours":19.354641321298388,"endHours":20.354641321298388,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:21","end":"21:21","startHours":20.354641321298388,"endHours":21.354641321298388,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:21","end":"22:21","startHours":21.354641321298388,"endHours":22.354641321298388,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:21","end":"23:21","startHours":22.354641321298388,"endHours":23.354641321298388,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:21","end":"00:21","startHours":23.354641321298388,"endHours":24.354641321298388,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:21","end":"01:21","startHours":24.354641321298388,"endHours":25.354641321298388,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:21","end":"02:21","startHours":25.354641321298388,"endHours":26.354641321298388,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:21","end":"03:21","startHours":26.354641321298388,"endHours":27.354641321298388,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:21","end":"04:21","startHours":27.354641321298388,"endHours":28.354641321298388,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:21","end":"05:21","startHours":28.354641321298388,"endHours":29.354641321298388,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North-West","rahuVasa":"North-West","anandadiYoga":{"name":"Ānanda","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":19.656306605397344,"eotMinutes":3.6891821904695723,"ayanamsa":24.878}},"calendars":{"vikram_samvat":2130,"vikram_samvatsara":"Parābhava","saka_samvat":1995,"saka_samvatsara":"Vijaya","bengali_samvat":1480,"malayalam_era":1249,"nanakshahi_year":604,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Dvādaśī · Vikram 2130 Parābhava · Śaka 1995 Vijaya"},"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 May 18, 2073 CE · Ṛṣikeśa · Vidhyamitra","description":"May 18, 2073 CE for Ṛṣikeśa: Śukla Dvādaśī, sūryodaya 05:21, sūryāsta 19:05.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2073-05-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2073-05-18","sa":"https://sa.vidhyamitra.com/city/rishikesh/2073-05-18","hi":"https://hi.vidhyamitra.com/city/rishikesh/2073-05-18","x-default":"https://vidhyamitra.com/city/rishikesh/2073-05-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T15:22:17.604Z","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":"2026-05-31T15:22:17.604Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T15:22:17.604Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}