{"id":"vidhyamitra:city-day:rishikesh:1864-12-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1864-12-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1864-12-17","date_display":"December 17, 1864 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":1864,"month":12,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2402222.770833,"kali_year":4966,"ahargana":1813757.2708,"sun":{"sidereal_longitude":243.4246,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":109.7295,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":226.3049,"elapsed_within_tithi_degrees":10.3049},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1,"moon_longitude":109.7295,"elapsed_within_degrees":3.0628},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":353.1541},"karana":{"half_tithi_index":37,"name":"Bālava"},"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":1864,"month":12,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2402222.770833,"ahargana":1813757.2708,"kali_year":4966,"ayanamsa_lahiri":21.9666,"grahas":{"sun":{"sidereal_longitude":243.45288200000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"moon":{"sidereal_longitude":107.79828199999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false,"latitude":-4.4988},"mars":{"sidereal_longitude":44.148482,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":264.278282,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":232.563082,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":282.807582,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":186.97738200000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":198.4114,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":18.4114,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"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":1864,"month":12,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2402222.770833,"kali_year":4966,"ahargana":1813757.2708,"sun":{"sidereal_longitude":243.4246,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":109.7295,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":226.3049,"elapsed_within_tithi_degrees":10.3049},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1,"moon_longitude":109.7295,"elapsed_within_degrees":3.0628},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":353.1541},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.499,"elongation":133.695},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.499,"opposition_distance":46.305}},"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":10.212121165118845,"dayLengthDisplay":"10 Hours 12 Mins 44 Secs","nightLengthDisplay":"13 Hours 47 Mins 16 Secs","moonriseLocal":"20:25","moonsetLocal":"09:57","rahuKala":{"name":"Rāhu Kāla","start":"09:40","end":"10:57","startHours":9.674906894101817,"endHours":10.951422039741672,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:30","end":"14:47","startHours":13.504452331021383,"endHours":14.780967476661239,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:07","end":"08:24","startHours":7.1218766028221046,"endHours":8.398391748461961,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:30","end":"09:51","startHours":9.504704874683169,"endHours":9.845108913520463,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:33","end":"07:49","startHours":7.547381651368723,"endHours":7.819704882438559,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:34","startHours":11.887533146544232,"endHours":12.568341224218823,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:46","end":"06:26","startHours":5.760260447472925,"endHours":6.441068525147515,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:16","end":"07:07","startHours":6.2708665057288675,"endHours":7.1218766028221046,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:37","startHours":13.929957379568002,"endHours":14.610765457242591,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:08","end":"17:32","startHours":17.13399776794095,"endHours":17.53399776794095,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:20","end":"17:46","startHours":17.33399776794095,"endHours":17.75950281648757,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:05","end":"18:50","startHours":17.08399776794095,"endHours":18.83399776794095,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:34","startHours":23.887533146544232,"endHours":24.568341224218823,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:07","end":"08:24","startHours":7.1218766028221046,"endHours":8.398391748461961,"quality":"inauspicious"},{"name":"Śubha","start":"08:24","end":"09:40","startHours":8.398391748461961,"endHours":9.674906894101817,"quality":"auspicious"},{"name":"Roga","start":"09:40","end":"10:57","startHours":9.674906894101817,"endHours":10.951422039741672,"quality":"inauspicious"},{"name":"Udveg","start":"10:57","end":"12:14","startHours":10.951422039741672,"endHours":12.227937185381528,"quality":"inauspicious"},{"name":"Chala","start":"12:14","end":"13:30","startHours":12.227937185381528,"endHours":13.504452331021383,"quality":"neutral"},{"name":"Labha","start":"13:30","end":"14:47","startHours":13.504452331021383,"endHours":14.780967476661239,"quality":"auspicious"},{"name":"Amṛta","start":"14:47","end":"16:03","startHours":14.780967476661239,"endHours":16.057482622301094,"quality":"auspicious"},{"name":"Kāla","start":"16:03","end":"17:20","startHours":16.057482622301094,"endHours":17.33399776794095,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:20","end":"19:03","startHours":17.33399776794095,"endHours":19.057482622301094,"quality":"auspicious"},{"name":"Amṛta","start":"19:03","end":"20:47","startHours":19.057482622301094,"endHours":20.78096747666124,"quality":"auspicious"},{"name":"Kāla","start":"20:47","end":"22:30","startHours":20.78096747666124,"endHours":22.504452331021383,"quality":"inauspicious"},{"name":"Śubha","start":"22:30","end":"00:14","startHours":22.504452331021383,"endHours":24.227937185381528,"quality":"auspicious"},{"name":"Roga","start":"00:14","end":"01:57","startHours":24.227937185381528,"endHours":25.951422039741672,"quality":"inauspicious"},{"name":"Udveg","start":"01:57","end":"03:40","startHours":25.951422039741672,"endHours":27.674906894101817,"quality":"inauspicious"},{"name":"Chala","start":"03:40","end":"05:24","startHours":27.674906894101817,"endHours":29.39839174846196,"quality":"neutral"},{"name":"Labha","start":"05:24","end":"07:07","startHours":29.39839174846196,"endHours":31.121876602822105,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:07","end":"08:07","startHours":7.1218766028221046,"endHours":8.121876602822105,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:07","end":"09:07","startHours":8.121876602822105,"endHours":9.121876602822105,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:07","end":"10:07","startHours":9.121876602822105,"endHours":10.121876602822105,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:07","end":"11:07","startHours":10.121876602822105,"endHours":11.121876602822105,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:07","end":"12:07","startHours":11.121876602822105,"endHours":12.121876602822105,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:07","end":"13:07","startHours":12.121876602822105,"endHours":13.121876602822105,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:07","end":"14:07","startHours":13.121876602822105,"endHours":14.121876602822105,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:07","end":"15:07","startHours":14.121876602822105,"endHours":15.121876602822105,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:07","end":"16:07","startHours":15.121876602822105,"endHours":16.121876602822105,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:07","end":"17:07","startHours":16.121876602822105,"endHours":17.121876602822105,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:07","end":"18:07","startHours":17.121876602822105,"endHours":18.121876602822105,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:07","end":"19:07","startHours":18.121876602822105,"endHours":19.121876602822105,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:07","end":"20:07","startHours":19.121876602822105,"endHours":20.121876602822105,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:07","end":"21:07","startHours":20.121876602822105,"endHours":21.121876602822105,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:07","end":"22:07","startHours":21.121876602822105,"endHours":22.121876602822105,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:07","end":"23:07","startHours":22.121876602822105,"endHours":23.121876602822105,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:07","end":"00:07","startHours":23.121876602822105,"endHours":24.121876602822105,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:07","end":"01:07","startHours":24.121876602822105,"endHours":25.121876602822105,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:07","end":"02:07","startHours":25.121876602822105,"endHours":26.121876602822105,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:07","end":"03:07","startHours":26.121876602822105,"endHours":27.121876602822105,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:07","end":"04:07","startHours":27.121876602822105,"endHours":28.121876602822105,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:07","end":"05:07","startHours":28.121876602822105,"endHours":29.121876602822105,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:07","end":"06:07","startHours":29.121876602822105,"endHours":30.121876602822105,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:07","end":"07:07","startHours":30.121876602822105,"endHours":31.121876602822105,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"East","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.357195214903978,"eotMinutes":3.253368877108411,"ayanamsa":21.9666}},"calendars":{"vikram_samvat":1921,"vikram_samvatsara":"Īśvara","saka_samvat":1786,"saka_samvatsara":"Raktākṣī","bengali_samvat":1271,"malayalam_era":1040,"nanakshahi_year":395,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","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":"Pauṣa Kṛṣṇa Caturthī · Vikram 1921 Īśvara · Śaka 1786 Raktākṣī"},"festivals":[{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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 December 17, 1864 CE · Ṛṣikeśa · Vidhyamitra","description":"December 17, 1864 CE for Ṛṣikeśa: Kṛṣṇa Caturthī, sūryodaya 07:07, sūryāsta 17:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1864-12-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1864-12-17","sa":"https://sa.vidhyamitra.com/city/rishikesh/1864-12-17","hi":"https://hi.vidhyamitra.com/city/rishikesh/1864-12-17","x-default":"https://vidhyamitra.com/city/rishikesh/1864-12-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T09:42:07.373Z","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":"2026-05-31T09:42:07.373Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T09:42:07.373Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}