{"id":"vidhyamitra:city-day:rishikesh:2025-05-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2025-05-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2025-05-10","date_display":"May 10, 2025 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":2025,"month":5,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2460805.770833,"kali_year":5127,"ahargana":1872340.2708,"sun":{"sidereal_longitude":25.3986,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":175.4072,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":150.0086,"elapsed_within_tithi_degrees":6.0086},"nakshatra":{"number":14,"name":"Citrā","pada":1,"moon_longitude":175.4072,"elapsed_within_degrees":2.0739},"yoga":{"number":16,"name":"Siddhi","sum_longitude":200.8058},"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":2025,"month":5,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2460805.770833,"ahargana":1872340.2708,"kali_year":5127,"ayanamsa_lahiri":24.2072,"grahas":{"sun":{"sidereal_longitude":25.445081000000016,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":176.44818099999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false,"latitude":-1.6116},"mars":{"sidereal_longitude":105.25118100000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":4.480780999999979,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":58.95368100000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":341.485581,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":334.608481,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":334.4021,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":154.4021,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":2025,"month":5,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2460805.770833,"kali_year":5127,"ahargana":1872340.2708,"sun":{"sidereal_longitude":25.3986,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":175.4072,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":150.0086,"elapsed_within_tithi_degrees":6.0086},"nakshatra":{"number":14,"name":"Citrā","pada":1,"moon_longitude":175.4072,"elapsed_within_degrees":2.0739},"yoga":{"number":16,"name":"Siddhi","sum_longitude":200.8058},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.612,"elongation":150.009},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.612,"opposition_distance":29.991}},"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":"05:27","sunsetLocal":"19:00","solarNoonLocal":"12:13","dayLengthHours":13.55326684512712,"dayLengthDisplay":"13 Hours 33 Mins 12 Secs","nightLengthDisplay":"10 Hours 26 Mins 48 Secs","moonriseLocal":"16:33","moonsetLocal":"04:01","rahuKala":{"name":"Rāhu Kāla","start":"08:50","end":"10:32","startHours":8.832566191650663,"endHours":10.526724547291552,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:55","end":"15:37","startHours":13.915041258573332,"endHours":15.609199614214223,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:27","end":"07:08","startHours":5.444249480368883,"endHours":7.1384078360097725,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:36","end":"09:04","startHours":8.606678410898544,"endHours":9.05845397240278,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:01","end":"06:22","startHours":6.0089689322491795,"endHours":6.370389381452569,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:40","startHours":11.769107341428205,"endHours":12.672658464436678,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:38","end":"04:32","startHours":3.637147234351933,"endHours":4.540698357360408,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:19","end":"05:27","startHours":4.31481057660829,"endHours":5.444249480368883,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:29","end":"15:23","startHours":14.479760710453629,"endHours":15.383311833462104,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:48","end":"19:12","startHours":18.797516325496,"endHours":19.197516325496,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:00","end":"19:34","startHours":18.997516325496,"endHours":19.562235777376298,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:45","end":"20:30","startHours":18.747516325496,"endHours":20.497516325496,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:40","startHours":23.769107341428203,"endHours":24.67265846443668,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:27","end":"07:08","startHours":5.444249480368883,"endHours":7.1384078360097725,"quality":"inauspicious"},{"name":"Śubha","start":"07:08","end":"08:50","startHours":7.1384078360097725,"endHours":8.832566191650663,"quality":"auspicious"},{"name":"Roga","start":"08:50","end":"10:32","startHours":8.832566191650663,"endHours":10.526724547291552,"quality":"inauspicious"},{"name":"Udveg","start":"10:32","end":"12:13","startHours":10.526724547291552,"endHours":12.220882902932441,"quality":"inauspicious"},{"name":"Chala","start":"12:13","end":"13:55","startHours":12.220882902932441,"endHours":13.915041258573332,"quality":"neutral"},{"name":"Labha","start":"13:55","end":"15:37","startHours":13.915041258573332,"endHours":15.609199614214223,"quality":"auspicious"},{"name":"Amṛta","start":"15:37","end":"17:18","startHours":15.609199614214223,"endHours":17.30335796985511,"quality":"auspicious"},{"name":"Kāla","start":"17:18","end":"19:00","startHours":17.30335796985511,"endHours":18.997516325496,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:00","end":"20:18","startHours":18.997516325496,"endHours":20.30335796985511,"quality":"auspicious"},{"name":"Amṛta","start":"20:18","end":"21:37","startHours":20.30335796985511,"endHours":21.60919961421422,"quality":"auspicious"},{"name":"Kāla","start":"21:37","end":"22:55","startHours":21.60919961421422,"endHours":22.915041258573332,"quality":"inauspicious"},{"name":"Śubha","start":"22:55","end":"00:13","startHours":22.915041258573332,"endHours":24.22088290293244,"quality":"auspicious"},{"name":"Roga","start":"00:13","end":"01:32","startHours":24.22088290293244,"endHours":25.52672454729155,"quality":"inauspicious"},{"name":"Udveg","start":"01:32","end":"02:50","startHours":25.52672454729155,"endHours":26.832566191650663,"quality":"inauspicious"},{"name":"Chala","start":"02:50","end":"04:08","startHours":26.832566191650663,"endHours":28.138407836009772,"quality":"neutral"},{"name":"Labha","start":"04:08","end":"05:27","startHours":28.138407836009772,"endHours":29.44424948036888,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:27","end":"06:27","startHours":5.444249480368883,"endHours":6.444249480368883,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:27","end":"07:27","startHours":6.444249480368883,"endHours":7.444249480368883,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:27","end":"08:27","startHours":7.444249480368883,"endHours":8.444249480368882,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:27","end":"09:27","startHours":8.444249480368882,"endHours":9.444249480368882,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:27","end":"10:27","startHours":9.444249480368882,"endHours":10.444249480368882,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:27","end":"11:27","startHours":10.444249480368882,"endHours":11.444249480368882,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:27","end":"12:27","startHours":11.444249480368882,"endHours":12.444249480368882,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:27","end":"13:27","startHours":12.444249480368882,"endHours":13.444249480368882,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:27","end":"14:27","startHours":13.444249480368882,"endHours":14.444249480368882,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:27","end":"15:27","startHours":14.444249480368882,"endHours":15.444249480368882,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:27","end":"16:27","startHours":15.444249480368882,"endHours":16.44424948036888,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:27","end":"17:27","startHours":16.44424948036888,"endHours":17.44424948036888,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:27","end":"18:27","startHours":17.44424948036888,"endHours":18.44424948036888,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:27","end":"19:27","startHours":18.44424948036888,"endHours":19.44424948036888,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:27","end":"20:27","startHours":19.44424948036888,"endHours":20.44424948036888,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:27","end":"21:27","startHours":20.44424948036888,"endHours":21.44424948036888,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:27","end":"22:27","startHours":21.44424948036888,"endHours":22.44424948036888,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:27","end":"23:27","startHours":22.44424948036888,"endHours":23.44424948036888,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:27","end":"00:27","startHours":23.44424948036888,"endHours":24.44424948036888,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:27","end":"01:27","startHours":24.44424948036888,"endHours":25.44424948036888,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:27","end":"02:27","startHours":25.44424948036888,"endHours":26.44424948036888,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:27","end":"03:27","startHours":26.44424948036888,"endHours":27.44424948036888,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:27","end":"04:27","startHours":27.44424948036888,"endHours":28.44424948036888,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:27","end":"05:27","startHours":28.44424948036888,"endHours":29.44424948036888,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"East","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":17.64531048384227,"eotMinutes":3.6766258240534686,"ayanamsa":24.2072}},"calendars":{"vikram_samvat":2082,"vikram_samvatsara":"Kālayukta","saka_samvat":1947,"saka_samvatsara":"Viśvāvasu","bengali_samvat":1432,"malayalam_era":1201,"nanakshahi_year":556,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Trayodaśī · Vikram 2082 Kālayukta · Śaka 1947 Viśvāvasu"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2},{"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 May 10, 2025 CE · Ṛṣikeśa · Vidhyamitra","description":"May 10, 2025 CE for Ṛṣikeśa: Śukla Trayodaśī, sūryodaya 05:27, sūryāsta 19:00.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2025-05-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2025-05-10","sa":"https://sa.vidhyamitra.com/city/rishikesh/2025-05-10","hi":"https://hi.vidhyamitra.com/city/rishikesh/2025-05-10","x-default":"https://vidhyamitra.com/city/rishikesh/2025-05-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T22:00:52.595Z","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":"2026-05-14T22:00:52.595Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T22:00:52.595Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}