{"id":"vidhyamitra:city-day:rishikesh:1958-07-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1958-07-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1958-07-16","date_display":"July 16, 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":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2436400.770833,"kali_year":5060,"ahargana":1847935.2708,"sun":{"sidereal_longitude":89.3995,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":79.2683,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":349.8687,"elapsed_within_tithi_degrees":1.8687},"nakshatra":{"number":6,"name":"Ārdrā","pada":4,"moon_longitude":79.2683,"elapsed_within_degrees":12.6016},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":168.6678},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"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":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2436400.770833,"ahargana":1847935.2708,"kali_year":5060,"ayanamsa_lahiri":23.2738,"grahas":{"sun":{"sidereal_longitude":89.73693100000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"moon":{"sidereal_longitude":80.50913100000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false,"latitude":-4.2738},"mars":{"sidereal_longitude":3.9205309999999827,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":114.929731,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":179.972531,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":59.915231000000006,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":237.48583099999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":187.4965,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":7.4965,"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":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2436400.770833,"kali_year":5060,"ahargana":1847935.2708,"sun":{"sidereal_longitude":89.3995,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":79.2683,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":349.8687,"elapsed_within_tithi_degrees":1.8687},"nakshatra":{"number":6,"name":"Ārdrā","pada":4,"moon_longitude":79.2683,"elapsed_within_degrees":12.6016},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":168.6678},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.274,"elongation":10.131},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.274,"opposition_distance":169.869}},"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":"05:26","sunsetLocal":"19:20","solarNoonLocal":"12:23","dayLengthHours":13.898617670457106,"dayLengthDisplay":"13 Hours 53 Mins 55 Secs","nightLengthDisplay":"10 Hours 06 Mins 05 Secs","moonriseLocal":"04:47","moonsetLocal":"18:45","rahuKala":{"name":"Rāhu Kāla","start":"12:23","end":"14:07","startHours":12.376872343604617,"endHours":14.114199552411755,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:10","end":"08:54","startHours":7.1648907171832015,"endHours":8.902217925990339,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:38","end":"12:23","startHours":10.639545134797478,"endHours":12.376872343604617,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:40","end":"09:08","startHours":8.670574298149388,"endHours":9.133861553831292,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:00","end":"06:23","startHours":6.006672577978443,"endHours":6.377302382523966,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:50","startHours":11.913585087922714,"endHours":12.84015959928652,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:34","end":"04:30","startHours":3.574414485648449,"endHours":4.500988997012256,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:16","end":"05:26","startHours":4.269345369171305,"endHours":5.427563508376063,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:42","end":"15:37","startHours":14.693308622014133,"endHours":15.61988313337794,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:08","end":"19:32","startHours":19.12618117883317,"endHours":19.52618117883317,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:20","end":"19:54","startHours":19.32618117883317,"endHours":19.90529024843555,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:05","end":"20:50","startHours":19.07618117883317,"endHours":20.82618117883317,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:50","startHours":23.913585087922712,"endHours":24.840159599286523,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:26","end":"07:10","startHours":5.427563508376063,"endHours":7.1648907171832015,"quality":"auspicious"},{"name":"Amṛta","start":"07:10","end":"08:54","startHours":7.1648907171832015,"endHours":8.902217925990339,"quality":"auspicious"},{"name":"Kāla","start":"08:54","end":"10:38","startHours":8.902217925990339,"endHours":10.639545134797478,"quality":"inauspicious"},{"name":"Śubha","start":"10:38","end":"12:23","startHours":10.639545134797478,"endHours":12.376872343604617,"quality":"auspicious"},{"name":"Roga","start":"12:23","end":"14:07","startHours":12.376872343604617,"endHours":14.114199552411755,"quality":"inauspicious"},{"name":"Udveg","start":"14:07","end":"15:51","startHours":14.114199552411755,"endHours":15.851526761218892,"quality":"inauspicious"},{"name":"Chala","start":"15:51","end":"17:35","startHours":15.851526761218892,"endHours":17.588853970026033,"quality":"neutral"},{"name":"Labha","start":"17:35","end":"19:20","startHours":17.588853970026033,"endHours":19.32618117883317,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:20","end":"20:35","startHours":19.32618117883317,"endHours":20.588853970026033,"quality":"inauspicious"},{"name":"Chala","start":"20:35","end":"21:51","startHours":20.588853970026033,"endHours":21.851526761218892,"quality":"neutral"},{"name":"Labha","start":"21:51","end":"23:07","startHours":21.851526761218892,"endHours":23.114199552411755,"quality":"auspicious"},{"name":"Amṛta","start":"23:07","end":"00:23","startHours":23.114199552411755,"endHours":24.376872343604617,"quality":"auspicious"},{"name":"Kāla","start":"00:23","end":"01:38","startHours":24.376872343604617,"endHours":25.63954513479748,"quality":"inauspicious"},{"name":"Śubha","start":"01:38","end":"02:54","startHours":25.63954513479748,"endHours":26.902217925990342,"quality":"auspicious"},{"name":"Roga","start":"02:54","end":"04:10","startHours":26.902217925990342,"endHours":28.1648907171832,"quality":"inauspicious"},{"name":"Udveg","start":"04:10","end":"05:26","startHours":28.1648907171832,"endHours":29.427563508376064,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:26","end":"06:26","startHours":5.427563508376063,"endHours":6.427563508376063,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:26","end":"07:26","startHours":6.427563508376063,"endHours":7.427563508376063,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:26","end":"08:26","startHours":7.427563508376063,"endHours":8.427563508376064,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:26","end":"09:26","startHours":8.427563508376064,"endHours":9.427563508376064,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:26","end":"10:26","startHours":9.427563508376064,"endHours":10.427563508376064,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:26","end":"11:26","startHours":10.427563508376064,"endHours":11.427563508376064,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:26","end":"12:26","startHours":11.427563508376064,"endHours":12.427563508376064,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:26","end":"13:26","startHours":12.427563508376064,"endHours":13.427563508376064,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:26","end":"14:26","startHours":13.427563508376064,"endHours":14.427563508376064,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:26","end":"15:26","startHours":14.427563508376064,"endHours":15.427563508376064,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:26","end":"16:26","startHours":15.427563508376064,"endHours":16.427563508376064,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:26","end":"17:26","startHours":16.427563508376064,"endHours":17.427563508376064,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:26","end":"18:26","startHours":17.427563508376064,"endHours":18.427563508376064,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:26","end":"19:26","startHours":18.427563508376064,"endHours":19.427563508376064,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:26","end":"20:26","startHours":19.427563508376064,"endHours":20.427563508376064,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:26","end":"21:26","startHours":20.427563508376064,"endHours":21.427563508376064,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:26","end":"22:26","startHours":21.427563508376064,"endHours":22.427563508376064,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:26","end":"23:26","startHours":22.427563508376064,"endHours":23.427563508376064,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:26","end":"00:26","startHours":23.427563508376064,"endHours":24.427563508376064,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:26","end":"01:26","startHours":24.427563508376064,"endHours":25.427563508376064,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:26","end":"02:26","startHours":25.427563508376064,"endHours":26.427563508376064,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:26","end":"03:26","startHours":26.427563508376064,"endHours":27.427563508376064,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:26","end":"04:26","startHours":27.427563508376064,"endHours":28.427563508376064,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:26","end":"05:26","startHours":28.427563508376064,"endHours":29.427563508376064,"planetary_lord":"Sun"}],"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","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"South-West","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"drikRitu":"Grīṣma (Summer) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":21.47440446928692,"eotMinutes":-5.682740616276977,"ayanamsa":23.2738}},"calendars":{"vikram_samvat":2015,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1880,"saka_samvatsara":"Vilambī","bengali_samvat":1365,"malayalam_era":1134,"nanakshahi_year":489,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Kṛṣṇa Pakṣa","solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Kṛṣṇa Amāvasyā · Vikram 2015 Virodhakṛt · Śaka 1880 Vilambī"},"festivals":[{"id":"mithuna-sankranti","name":"Mithuna Saṅkrānti","name_sanskrit":"मिथुन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Gemini.","vrata":false,"detection":{"sun_rashi":"Mithuna"},"precedence":5}],"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":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","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 16, 1958 CE · Ṛṣikeśa · Vidhyamitra","description":"July 16, 1958 CE for Ṛṣikeśa: Kṛṣṇa Amāvasyā, sūryodaya 05:26, sūryāsta 19:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1958-07-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1958-07-16","sa":"https://sa.vidhyamitra.com/city/rishikesh/1958-07-16","hi":"https://hi.vidhyamitra.com/city/rishikesh/1958-07-16","x-default":"https://vidhyamitra.com/city/rishikesh/1958-07-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T14:38:11.325Z","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":"2026-05-20T14:38:11.325Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T14:38:11.325Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}