{"id":"vidhyamitra:city-day:rishikesh:1958-10-25:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1958-10-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1958-10-25","date_display":"October 25, 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":10,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2436501.770833,"kali_year":5060,"ahargana":1848036.2708,"sun":{"sidereal_longitude":187.2305,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":337.8781,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":150.6476,"elapsed_within_tithi_degrees":6.6476},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2,"moon_longitude":337.8781,"elapsed_within_degrees":4.5447},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":165.1086},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":10,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2436501.770833,"ahargana":1848036.2708,"kali_year":5060,"ayanamsa_lahiri":23.2777,"grahas":{"sun":{"sidereal_longitude":187.840372,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":339.65547200000003,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false,"latitude":1.8479},"mars":{"sidereal_longitude":38.284471999999994,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":200.838572,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":196.95517199999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":184.02497199999993,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":239.21337200000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":182.145,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":2.145,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":1958,"month":10,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2436501.770833,"kali_year":5060,"ahargana":1848036.2708,"sun":{"sidereal_longitude":187.2305,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":337.8781,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":150.6476,"elapsed_within_tithi_degrees":6.6476},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2,"moon_longitude":337.8781,"elapsed_within_degrees":4.5447},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":165.1086},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.848,"elongation":150.648},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.848,"opposition_distance":29.352}},"eclipse_window_40days":[{"offset_days":-12,"type":"solar","occurs":true,"moon_latitude":-0.439,"elongation":1.89}]},"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":"06:25","sunsetLocal":"17:37","solarNoonLocal":"12:01","dayLengthHours":11.200064464798114,"dayLengthDisplay":"11 Hours 12 Mins 00 Secs","nightLengthDisplay":"12 Hours 48 Mins 00 Secs","moonriseLocal":"16:03","moonsetLocal":"04:13","rahuKala":{"name":"Rāhu Kāla","start":"09:13","end":"10:37","startHours":9.211562899351039,"endHours":10.611570957450802,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:25","end":"14:49","startHours":13.411587073650331,"endHours":14.811595131750096,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:25","end":"07:49","startHours":6.41154678315151,"endHours":7.811554841251274,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:01","end":"09:24","startHours":9.02489515827107,"endHours":9.398230640431008,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:53","end":"07:11","startHours":6.8782161358514315,"endHours":7.176884521579381,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:38","end":"12:23","startHours":11.63824353339063,"endHours":12.384914497710506,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:55","end":"05:40","startHours":4.918204854511762,"endHours":5.664875818831636,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:29","end":"06:25","startHours":5.478208077751668,"endHours":6.41154678315151,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:53","end":"14:37","startHours":13.878256426350251,"endHours":14.624927390670125,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:25","end":"17:49","startHours":17.411611247949626,"endHours":17.811611247949624,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:37","end":"18:05","startHours":17.611611247949625,"endHours":18.078280600649546,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:22","end":"19:07","startHours":17.361611247949625,"endHours":19.111611247949625,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:38","end":"00:23","startHours":23.63824353339063,"endHours":24.384914497710504,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:25","end":"07:49","startHours":6.41154678315151,"endHours":7.811554841251274,"quality":"inauspicious"},{"name":"Śubha","start":"07:49","end":"09:13","startHours":7.811554841251274,"endHours":9.211562899351039,"quality":"auspicious"},{"name":"Roga","start":"09:13","end":"10:37","startHours":9.211562899351039,"endHours":10.611570957450802,"quality":"inauspicious"},{"name":"Udveg","start":"10:37","end":"12:01","startHours":10.611570957450802,"endHours":12.011579015550566,"quality":"inauspicious"},{"name":"Chala","start":"12:01","end":"13:25","startHours":12.011579015550566,"endHours":13.411587073650331,"quality":"neutral"},{"name":"Labha","start":"13:25","end":"14:49","startHours":13.411587073650331,"endHours":14.811595131750096,"quality":"auspicious"},{"name":"Amṛta","start":"14:49","end":"16:13","startHours":14.811595131750096,"endHours":16.21160318984986,"quality":"auspicious"},{"name":"Kāla","start":"16:13","end":"17:37","startHours":16.21160318984986,"endHours":17.611611247949625,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:37","end":"19:13","startHours":17.611611247949625,"endHours":19.21160318984986,"quality":"auspicious"},{"name":"Amṛta","start":"19:13","end":"20:49","startHours":19.21160318984986,"endHours":20.811595131750096,"quality":"auspicious"},{"name":"Kāla","start":"20:49","end":"22:25","startHours":20.811595131750096,"endHours":22.41158707365033,"quality":"inauspicious"},{"name":"Śubha","start":"22:25","end":"00:01","startHours":22.41158707365033,"endHours":24.011579015550566,"quality":"auspicious"},{"name":"Roga","start":"00:01","end":"01:37","startHours":24.011579015550566,"endHours":25.6115709574508,"quality":"inauspicious"},{"name":"Udveg","start":"01:37","end":"03:13","startHours":25.6115709574508,"endHours":27.21156289935104,"quality":"inauspicious"},{"name":"Chala","start":"03:13","end":"04:49","startHours":27.21156289935104,"endHours":28.811554841251276,"quality":"neutral"},{"name":"Labha","start":"04:49","end":"06:25","startHours":28.811554841251276,"endHours":30.41154678315151,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:25","end":"07:25","startHours":6.41154678315151,"endHours":7.41154678315151,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:25","end":"08:25","startHours":7.41154678315151,"endHours":8.411546783151511,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:25","end":"09:25","startHours":8.411546783151511,"endHours":9.411546783151511,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:25","end":"10:25","startHours":9.411546783151511,"endHours":10.411546783151511,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:25","end":"11:25","startHours":10.411546783151511,"endHours":11.411546783151511,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:25","end":"12:25","startHours":11.411546783151511,"endHours":12.411546783151511,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:25","end":"13:25","startHours":12.411546783151511,"endHours":13.411546783151511,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:25","end":"14:25","startHours":13.411546783151511,"endHours":14.411546783151511,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:25","end":"15:25","startHours":14.411546783151511,"endHours":15.411546783151511,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:25","end":"16:25","startHours":15.411546783151511,"endHours":16.41154678315151,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:25","end":"17:25","startHours":16.41154678315151,"endHours":17.41154678315151,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:25","end":"18:25","startHours":17.41154678315151,"endHours":18.41154678315151,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:25","end":"19:25","startHours":18.41154678315151,"endHours":19.41154678315151,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:25","end":"20:25","startHours":19.41154678315151,"endHours":20.41154678315151,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:25","end":"21:25","startHours":20.41154678315151,"endHours":21.41154678315151,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:25","end":"22:25","startHours":21.41154678315151,"endHours":22.41154678315151,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:25","end":"23:25","startHours":22.41154678315151,"endHours":23.41154678315151,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:25","end":"00:25","startHours":23.41154678315151,"endHours":24.41154678315151,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:25","end":"01:25","startHours":24.41154678315151,"endHours":25.41154678315151,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:25","end":"02:25","startHours":25.41154678315151,"endHours":26.41154678315151,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:25","end":"03:25","startHours":26.41154678315151,"endHours":27.41154678315151,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:25","end":"04:25","startHours":27.41154678315151,"endHours":28.41154678315151,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:25","end":"05:25","startHours":28.41154678315151,"endHours":29.41154678315151,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:25","end":"06:25","startHours":29.41154678315151,"endHours":30.41154678315151,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"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":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"East","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-11.86166706492313,"eotMinutes":16.234859066965946,"ayanamsa":23.2777}},"calendars":{"vikram_samvat":2015,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1880,"saka_samvatsara":"Vilambī","bengali_samvat":1365,"malayalam_era":1134,"nanakshahi_year":489,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Trayodaśī · Vikram 2015 Virodhakṛt · Śaka 1880 Vilambī"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 October 25, 1958 CE · Ṛṣikeśa · Vidhyamitra","description":"October 25, 1958 CE for Ṛṣikeśa: Śukla Trayodaśī, sūryodaya 06:25, sūryāsta 17:37.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1958-10-25","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1958-10-25","sa":"https://sa.vidhyamitra.com/city/rishikesh/1958-10-25","hi":"https://hi.vidhyamitra.com/city/rishikesh/1958-10-25","x-default":"https://vidhyamitra.com/city/rishikesh/1958-10-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T13:57:42.410Z","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":"2026-05-31T13:57:42.410Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T13:57:42.410Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}