{"id":"vidhyamitra:city-day:rishikesh:1958-07-30:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1958-07-30","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1958-07-30","date_display":"July 30, 1958 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":1958,"month":7,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2436414.770833,"kali_year":5060,"ahargana":1847949.2708,"sun":{"sidereal_longitude":102.6799,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":276.3209,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":173.641,"elapsed_within_tithi_degrees":5.641},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3,"moon_longitude":276.3209,"elapsed_within_degrees":9.6542},"yoga":{"number":2,"name":"Prīti","sum_longitude":19.0007},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"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":1958,"month":7,"day":30,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2436414.770833,"ahargana":1847949.2708,"kali_year":5060,"ayanamsa_lahiri":23.2743,"grahas":{"sun":{"sidereal_longitude":103.10529600000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"moon":{"sidereal_longitude":275.179796,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false,"latitude":4.4999},"mars":{"sidereal_longitude":12.708895999999982,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":130.56089599999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":181.30819599999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":76.69739600000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":236.81789600000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":186.7547,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":6.7547,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"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":1958,"month":7,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2436414.770833,"kali_year":5060,"ahargana":1847949.2708,"sun":{"sidereal_longitude":102.6799,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":276.3209,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":173.641,"elapsed_within_tithi_degrees":5.641},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3,"moon_longitude":276.3209,"elapsed_within_degrees":9.6542},"yoga":{"number":2,"name":"Prīti","sum_longitude":19.0007},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.5,"elongation":173.641},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.5,"opposition_distance":6.359}},"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":"05:34","sunsetLocal":"19:12","solarNoonLocal":"12:23","dayLengthHours":13.644241564398838,"dayLengthDisplay":"13 Hours 38 Mins 39 Secs","nightLengthDisplay":"10 Hours 21 Mins 21 Secs","moonriseLocal":"18:38","moonsetLocal":"05:04","rahuKala":{"name":"Rāhu Kāla","start":"12:23","end":"14:05","startHours":12.384071428613005,"endHours":14.08960162416286,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:16","end":"08:58","startHours":7.267480841963442,"endHours":8.973011037513297,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:41","end":"12:23","startHours":10.67854123306315,"endHours":12.384071428613005,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:45","end":"09:12","startHours":8.745607011439983,"endHours":9.200415063586611,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:08","end":"06:30","startHours":6.130460711596872,"endHours":6.494307153314175,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:50","startHours":11.929263376466377,"endHours":12.838879480759633,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:45","end":"04:39","startHours":3.742718437827075,"endHours":4.6523345421203315,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:25","end":"05:34","startHours":4.424930516047017,"endHours":5.561950646413587,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:39","end":"15:34","startHours":14.658111689346146,"endHours":15.567727793639403,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:00","end":"19:24","startHours":19.006192210812426,"endHours":19.406192210812424,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:12","end":"19:46","startHours":19.206192210812425,"endHours":19.77470227599571,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:57","end":"20:42","startHours":18.956192210812425,"endHours":20.706192210812425,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:50","startHours":23.929263376466377,"endHours":24.838879480759633,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:34","end":"07:16","startHours":5.561950646413587,"endHours":7.267480841963442,"quality":"auspicious"},{"name":"Amṛta","start":"07:16","end":"08:58","startHours":7.267480841963442,"endHours":8.973011037513297,"quality":"auspicious"},{"name":"Kāla","start":"08:58","end":"10:41","startHours":8.973011037513297,"endHours":10.67854123306315,"quality":"inauspicious"},{"name":"Śubha","start":"10:41","end":"12:23","startHours":10.67854123306315,"endHours":12.384071428613005,"quality":"auspicious"},{"name":"Roga","start":"12:23","end":"14:05","startHours":12.384071428613005,"endHours":14.08960162416286,"quality":"inauspicious"},{"name":"Udveg","start":"14:05","end":"15:48","startHours":14.08960162416286,"endHours":15.795131819712715,"quality":"inauspicious"},{"name":"Chala","start":"15:48","end":"17:30","startHours":15.795131819712715,"endHours":17.50066201526257,"quality":"neutral"},{"name":"Labha","start":"17:30","end":"19:12","startHours":17.50066201526257,"endHours":19.206192210812425,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:12","end":"20:30","startHours":19.206192210812425,"endHours":20.50066201526257,"quality":"inauspicious"},{"name":"Chala","start":"20:30","end":"21:48","startHours":20.50066201526257,"endHours":21.795131819712715,"quality":"neutral"},{"name":"Labha","start":"21:48","end":"23:05","startHours":21.795131819712715,"endHours":23.08960162416286,"quality":"auspicious"},{"name":"Amṛta","start":"23:05","end":"00:23","startHours":23.08960162416286,"endHours":24.384071428613005,"quality":"auspicious"},{"name":"Kāla","start":"00:23","end":"01:41","startHours":24.384071428613005,"endHours":25.67854123306315,"quality":"inauspicious"},{"name":"Śubha","start":"01:41","end":"02:58","startHours":25.67854123306315,"endHours":26.973011037513295,"quality":"auspicious"},{"name":"Roga","start":"02:58","end":"04:16","startHours":26.973011037513295,"endHours":28.26748084196344,"quality":"inauspicious"},{"name":"Udveg","start":"04:16","end":"05:34","startHours":28.26748084196344,"endHours":29.561950646413585,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:34","end":"06:34","startHours":5.561950646413587,"endHours":6.561950646413587,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:34","end":"07:34","startHours":6.561950646413587,"endHours":7.561950646413587,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:34","end":"08:34","startHours":7.561950646413587,"endHours":8.561950646413587,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:34","end":"09:34","startHours":8.561950646413587,"endHours":9.561950646413587,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:34","end":"10:34","startHours":9.561950646413587,"endHours":10.561950646413587,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:34","end":"11:34","startHours":10.561950646413587,"endHours":11.561950646413587,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:34","end":"12:34","startHours":11.561950646413587,"endHours":12.561950646413587,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:34","end":"13:34","startHours":12.561950646413587,"endHours":13.561950646413587,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:34","end":"14:34","startHours":13.561950646413587,"endHours":14.561950646413587,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:34","end":"15:34","startHours":14.561950646413587,"endHours":15.561950646413587,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:34","end":"16:34","startHours":15.561950646413587,"endHours":16.561950646413585,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:34","end":"17:34","startHours":16.561950646413585,"endHours":17.561950646413585,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:34","end":"18:34","startHours":17.561950646413585,"endHours":18.561950646413585,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:34","end":"19:34","startHours":18.561950646413585,"endHours":19.561950646413585,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:34","end":"20:34","startHours":19.561950646413585,"endHours":20.561950646413585,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:34","end":"21:34","startHours":20.561950646413585,"endHours":21.561950646413585,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:34","end":"22:34","startHours":21.561950646413585,"endHours":22.561950646413585,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:34","end":"23:34","startHours":22.561950646413585,"endHours":23.561950646413585,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:34","end":"00:34","startHours":23.561950646413585,"endHours":24.561950646413585,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:34","end":"01:34","startHours":24.561950646413585,"endHours":25.561950646413585,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:34","end":"02:34","startHours":25.561950646413585,"endHours":26.561950646413585,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:34","end":"03:34","startHours":26.561950646413585,"endHours":27.561950646413585,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:34","end":"04:34","startHours":27.561950646413585,"endHours":28.561950646413585,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:34","end":"05:34","startHours":28.561950646413585,"endHours":29.561950646413585,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"South-West","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":18.676013678727696,"eotMinutes":-6.1146857167802535,"ayanamsa":23.2743}},"calendars":{"vikram_samvat":2015,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1880,"saka_samvatsara":"Vilambī","bengali_samvat":1365,"malayalam_era":1134,"nanakshahi_year":489,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Pūrṇimā · Vikram 2015 Virodhakṛt · Śaka 1880 Vilambī"},"festivals":[{"id":"raksha-bandhana","name":"Rakṣā Bandhana / Śrāvaṇa Pūrṇimā","name_sanskrit":"रक्षा बन्धन","tradition":"Pan-Hindu","significance":"Sister-brother bond; Brāhmaṇa Upākarma.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Śrāvaṇa"},"precedence":1},{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi":"Karka"},"precedence":2},{"id":"jhulan-purnima","name":"Jhūlan Pūrṇimā (Rādhā-Krishna swing)","name_sanskrit":"झूलन पूर्णिमा","tradition":"Vaishnava","associated_deity":"Rādhā-Krishna","significance":"Rādhā-Krishna swing-līlā festival; Jhūlan-yātrā culmination.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Śrāvaṇa"},"precedence":3},{"id":"upakarman-rigveda","name":"Ṛg-Veda Upākarman","name_sanskrit":"ऋग्वेद उपाकर्मन्","tradition":"Smarta","associated_deity":"Ṛṣi-paramparā","significance":"Annual renewal of Veda-svādhyāya for Ṛg-Vedīs. Śrāvaṇa Pūrṇimā.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Śrāvaṇa"},"precedence":3},{"id":"upakarman-yajurveda","name":"Yajur-Veda Upākarman","name_sanskrit":"यजुर्वेद उपाकर्मन्","tradition":"Smarta","significance":"Annual renewal of Veda-svādhyāya for Yajur-Vedīs.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Śrāvaṇa"},"precedence":3},{"id":"hayagriva-jayanti","name":"Hayagrīva Jayantī","name_sanskrit":"हयग्रीव जयन्ती","tradition":"Vaishnava","associated_deity":"Hayagrīva (Knowledge-form of Bhagavān)","significance":"Bhagavān as Hayagrīva restored the Vedas to Brahmā. Vidyā-pradāyaka.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Śrāvaṇa"},"precedence":4,"sources":["Devī-Bhāgavata, Hayagrīva-stotra"]}],"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":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","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 July 30, 1958 CE · Ṛṣikeśa · Vidhyamitra","description":"July 30, 1958 CE for Ṛṣikeśa: Śukla Pūrṇimā, sūryodaya 05:34, sūryāsta 19:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1958-07-30","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1958-07-30","sa":"https://sa.vidhyamitra.com/city/rishikesh/1958-07-30","hi":"https://hi.vidhyamitra.com/city/rishikesh/1958-07-30","x-default":"https://vidhyamitra.com/city/rishikesh/1958-07-30"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T13:24:28.527Z","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":"2026-05-20T13:24:28.527Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T13:24:28.527Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}