{"id":"vidhyamitra:city-day:rishikesh:1879-12-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1879-12-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1879-12-17","date_display":"December 17, 1879 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":1879,"month":12,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2407700.770833,"kali_year":4981,"ahargana":1819235.2708,"sun":{"sidereal_longitude":242.5196,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":289.5947,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":47.0751,"elapsed_within_tithi_degrees":11.0751},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":289.5947,"elapsed_within_degrees":9.5947},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":172.1143},"karana":{"half_tithi_index":7,"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":1879,"month":12,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2407700.770833,"ahargana":1819235.2708,"kali_year":4981,"ayanamsa_lahiri":22.1761,"grahas":{"sun":{"sidereal_longitude":242.59108200000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":291.157682,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false,"latitude":1.643},"mars":{"sidereal_longitude":22.581182000000013,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":230.28288199999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":315.84048200000007,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":197.92168200000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":347.773782,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":268.1606,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":88.1606,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","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":1879,"month":12,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2407700.770833,"kali_year":4981,"ahargana":1819235.2708,"sun":{"sidereal_longitude":242.5196,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":289.5947,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":47.0751,"elapsed_within_tithi_degrees":11.0751},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":289.5947,"elapsed_within_degrees":9.5947},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":172.1143},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.643,"elongation":47.075},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.643,"opposition_distance":132.925}},"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":"07:07","sunsetLocal":"17:20","solarNoonLocal":"12:14","dayLengthHours":10.214371859979735,"dayLengthDisplay":"10 Hours 12 Mins 52 Secs","nightLengthDisplay":"13 Hours 47 Mins 08 Secs","moonriseLocal":"10:05","moonsetLocal":"20:50","rahuKala":{"name":"Rāhu Kāla","start":"12:14","end":"13:30","startHours":12.227937185381528,"endHours":13.504733667878995,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:24","end":"09:40","startHours":8.397547737889127,"endHours":9.674344220386594,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:57","end":"12:14","startHours":10.95114070288406,"endHours":12.227937185381528,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:30","end":"09:51","startHours":9.504104689386931,"endHours":9.844583751386255,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:33","end":"07:49","startHours":7.5463500828908145,"endHours":7.818733332490274,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:34","startHours":11.887458123382203,"endHours":12.568416247380853,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:46","end":"06:26","startHours":5.758835007394361,"endHours":6.43979313139301,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:16","end":"07:07","startHours":6.269553600393348,"endHours":7.120751255391659,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:37","startHours":13.930332495378149,"endHours":14.611290619376797,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:08","end":"17:32","startHours":17.135123115371396,"endHours":17.535123115371395,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:20","end":"17:46","startHours":17.335123115371395,"endHours":17.76072194287055,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:05","end":"18:50","startHours":17.085123115371395,"endHours":18.835123115371395,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:34","startHours":23.887458123382203,"endHours":24.568416247380853,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:07","end":"08:24","startHours":7.120751255391659,"endHours":8.397547737889127,"quality":"auspicious"},{"name":"Amṛta","start":"08:24","end":"09:40","startHours":8.397547737889127,"endHours":9.674344220386594,"quality":"auspicious"},{"name":"Kāla","start":"09:40","end":"10:57","startHours":9.674344220386594,"endHours":10.95114070288406,"quality":"inauspicious"},{"name":"Śubha","start":"10:57","end":"12:14","startHours":10.95114070288406,"endHours":12.227937185381528,"quality":"auspicious"},{"name":"Roga","start":"12:14","end":"13:30","startHours":12.227937185381528,"endHours":13.504733667878995,"quality":"inauspicious"},{"name":"Udveg","start":"13:30","end":"14:47","startHours":13.504733667878995,"endHours":14.781530150376462,"quality":"inauspicious"},{"name":"Chala","start":"14:47","end":"16:03","startHours":14.781530150376462,"endHours":16.05832663287393,"quality":"neutral"},{"name":"Labha","start":"16:03","end":"17:20","startHours":16.05832663287393,"endHours":17.335123115371395,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:20","end":"19:03","startHours":17.335123115371395,"endHours":19.05832663287393,"quality":"inauspicious"},{"name":"Chala","start":"19:03","end":"20:47","startHours":19.05832663287393,"endHours":20.78153015037646,"quality":"neutral"},{"name":"Labha","start":"20:47","end":"22:30","startHours":20.78153015037646,"endHours":22.504733667878995,"quality":"auspicious"},{"name":"Amṛta","start":"22:30","end":"00:14","startHours":22.504733667878995,"endHours":24.227937185381528,"quality":"auspicious"},{"name":"Kāla","start":"00:14","end":"01:57","startHours":24.227937185381528,"endHours":25.95114070288406,"quality":"inauspicious"},{"name":"Śubha","start":"01:57","end":"03:40","startHours":25.95114070288406,"endHours":27.674344220386594,"quality":"auspicious"},{"name":"Roga","start":"03:40","end":"05:24","startHours":27.674344220386594,"endHours":29.397547737889127,"quality":"inauspicious"},{"name":"Udveg","start":"05:24","end":"07:07","startHours":29.397547737889127,"endHours":31.12075125539166,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:07","end":"08:07","startHours":7.120751255391659,"endHours":8.12075125539166,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:07","end":"09:07","startHours":8.12075125539166,"endHours":9.12075125539166,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:07","end":"10:07","startHours":9.12075125539166,"endHours":10.12075125539166,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:07","end":"11:07","startHours":10.12075125539166,"endHours":11.12075125539166,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:07","end":"12:07","startHours":11.12075125539166,"endHours":12.12075125539166,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:07","end":"13:07","startHours":12.12075125539166,"endHours":13.12075125539166,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:07","end":"14:07","startHours":13.12075125539166,"endHours":14.12075125539166,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:07","end":"15:07","startHours":14.12075125539166,"endHours":15.12075125539166,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:07","end":"16:07","startHours":15.12075125539166,"endHours":16.12075125539166,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:07","end":"17:07","startHours":16.12075125539166,"endHours":17.12075125539166,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:07","end":"18:07","startHours":17.12075125539166,"endHours":18.12075125539166,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:07","end":"19:07","startHours":18.12075125539166,"endHours":19.12075125539166,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:07","end":"20:07","startHours":19.12075125539166,"endHours":20.12075125539166,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:07","end":"21:07","startHours":20.12075125539166,"endHours":21.12075125539166,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:07","end":"22:07","startHours":21.12075125539166,"endHours":22.12075125539166,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:07","end":"23:07","startHours":22.12075125539166,"endHours":23.12075125539166,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:07","end":"00:07","startHours":23.12075125539166,"endHours":24.12075125539166,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:07","end":"01:07","startHours":24.12075125539166,"endHours":25.12075125539166,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:07","end":"02:07","startHours":25.12075125539166,"endHours":26.12075125539166,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:07","end":"03:07","startHours":26.12075125539166,"endHours":27.12075125539166,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:07","end":"04:07","startHours":27.12075125539166,"endHours":28.12075125539166,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:07","end":"05:07","startHours":28.12075125539166,"endHours":29.12075125539166,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:07","end":"06:07","startHours":29.12075125539166,"endHours":30.12075125539166,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:07","end":"07:07","startHours":30.12075125539166,"endHours":31.12075125539166,"planetary_lord":"Sun"}],"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","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"South-West","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.333025987960887,"eotMinutes":3.253368877108411,"ayanamsa":22.1761}},"calendars":{"vikram_samvat":1936,"vikram_samvatsara":"Nandana","saka_samvat":1801,"saka_samvatsara":"Pramāthi","bengali_samvat":1286,"malayalam_era":1055,"nanakshahi_year":410,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Caturthī · Vikram 1936 Nandana · Śaka 1801 Pramāthi"},"festivals":[{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"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":[]},"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 December 17, 1879 CE · Ṛṣikeśa · Vidhyamitra","description":"December 17, 1879 CE for Ṛṣikeśa: Śukla Caturthī, sūryodaya 07:07, sūryāsta 17:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1879-12-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1879-12-17","sa":"https://sa.vidhyamitra.com/city/rishikesh/1879-12-17","hi":"https://hi.vidhyamitra.com/city/rishikesh/1879-12-17","x-default":"https://vidhyamitra.com/city/rishikesh/1879-12-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T02:51:42.664Z","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":"2026-05-31T02:51:42.664Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T02:51:42.664Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}