{"id":"vidhyamitra:city-day:rishikesh:1948-12-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1948-12-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1948-12-18","date_display":"December 18, 1948 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":1948,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2432903.770833,"kali_year":5050,"ahargana":1844438.2708,"sun":{"sidereal_longitude":242.6693,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":82.657,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":199.9877,"elapsed_within_tithi_degrees":7.9877},"nakshatra":{"number":7,"name":"Punarvasu","pada":1,"moon_longitude":82.657,"elapsed_within_degrees":2.657},"yoga":{"number":25,"name":"Brahma","sum_longitude":325.3264},"karana":{"half_tithi_index":33,"name":"Gara"},"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":1948,"month":12,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2432903.770833,"ahargana":1844438.2708,"kali_year":5050,"ayanamsa_lahiri":23.14,"grahas":{"sun":{"sidereal_longitude":242.901742,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":84.43764199999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false,"latitude":4.2247},"mars":{"sidereal_longitude":263.80504199999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":246.55254200000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":255.34354199999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":214.75754200000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":133.368242,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":12.7844,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":192.7844,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","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":1948,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2432903.770833,"kali_year":5050,"ahargana":1844438.2708,"sun":{"sidereal_longitude":242.6693,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":82.657,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":199.9877,"elapsed_within_tithi_degrees":7.9877},"nakshatra":{"number":7,"name":"Punarvasu","pada":1,"moon_longitude":82.657,"elapsed_within_degrees":2.657},"yoga":{"number":25,"name":"Brahma","sum_longitude":325.3264},"karana":{"half_tithi_index":33,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.225,"elongation":160.012},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.225,"opposition_distance":19.988}},"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":"07:08","sunsetLocal":"17:20","solarNoonLocal":"12:14","dayLengthHours":10.210251387781643,"dayLengthDisplay":"10 Hours 12 Mins 37 Secs","nightLengthDisplay":"13 Hours 47 Mins 23 Secs","moonriseLocal":"18:42","moonsetLocal":"08:38","rahuKala":{"name":"Rāhu Kāla","start":"09:41","end":"10:58","startHours":9.68313503058557,"endHours":10.959416454058275,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:31","end":"14:47","startHours":13.511979301003684,"endHours":14.788260724476391,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:08","end":"08:24","startHours":7.130572183640159,"endHours":8.406853607112865,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:31","end":"09:51","startHours":9.512964174122542,"endHours":9.853305887048597,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:33","end":"07:50","startHours":7.555999324797727,"endHours":7.828272695138571,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:35","startHours":11.895356164604925,"endHours":12.576039590457034,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:46","end":"06:27","startHours":5.7692053319359395,"endHours":6.44988875778805,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:17","end":"07:08","startHours":6.279717901325022,"endHours":7.130572183640159,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:37","startHours":13.937406442161254,"endHours":14.618089868013364,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:08","end":"17:32","startHours":17.1408235714218,"endHours":17.5408235714218,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:20","end":"17:46","startHours":17.3408235714218,"endHours":17.76625071257937,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:05","end":"18:50","startHours":17.0908235714218,"endHours":18.8408235714218,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:35","startHours":23.895356164604927,"endHours":24.576039590457036,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:08","end":"08:24","startHours":7.130572183640159,"endHours":8.406853607112865,"quality":"inauspicious"},{"name":"Śubha","start":"08:24","end":"09:41","startHours":8.406853607112865,"endHours":9.68313503058557,"quality":"auspicious"},{"name":"Roga","start":"09:41","end":"10:58","startHours":9.68313503058557,"endHours":10.959416454058275,"quality":"inauspicious"},{"name":"Udveg","start":"10:58","end":"12:14","startHours":10.959416454058275,"endHours":12.235697877530981,"quality":"inauspicious"},{"name":"Chala","start":"12:14","end":"13:31","startHours":12.235697877530981,"endHours":13.511979301003684,"quality":"neutral"},{"name":"Labha","start":"13:31","end":"14:47","startHours":13.511979301003684,"endHours":14.788260724476391,"quality":"auspicious"},{"name":"Amṛta","start":"14:47","end":"16:04","startHours":14.788260724476391,"endHours":16.064542147949098,"quality":"auspicious"},{"name":"Kāla","start":"16:04","end":"17:20","startHours":16.064542147949098,"endHours":17.3408235714218,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:20","end":"19:04","startHours":17.3408235714218,"endHours":19.064542147949094,"quality":"auspicious"},{"name":"Amṛta","start":"19:04","end":"20:47","startHours":19.064542147949094,"endHours":20.78826072447639,"quality":"auspicious"},{"name":"Kāla","start":"20:47","end":"22:31","startHours":20.78826072447639,"endHours":22.511979301003684,"quality":"inauspicious"},{"name":"Śubha","start":"22:31","end":"00:14","startHours":22.511979301003684,"endHours":24.23569787753098,"quality":"auspicious"},{"name":"Roga","start":"00:14","end":"01:58","startHours":24.23569787753098,"endHours":25.959416454058275,"quality":"inauspicious"},{"name":"Udveg","start":"01:58","end":"03:41","startHours":25.959416454058275,"endHours":27.683135030585568,"quality":"inauspicious"},{"name":"Chala","start":"03:41","end":"05:24","startHours":27.683135030585568,"endHours":29.406853607112865,"quality":"neutral"},{"name":"Labha","start":"05:24","end":"07:08","startHours":29.406853607112865,"endHours":31.130572183640158,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:08","end":"08:08","startHours":7.130572183640159,"endHours":8.130572183640158,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:08","end":"09:08","startHours":8.130572183640158,"endHours":9.130572183640158,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:08","end":"10:08","startHours":9.130572183640158,"endHours":10.130572183640158,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:08","end":"11:08","startHours":10.130572183640158,"endHours":11.130572183640158,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:08","end":"12:08","startHours":11.130572183640158,"endHours":12.130572183640158,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:08","end":"13:08","startHours":12.130572183640158,"endHours":13.130572183640158,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:08","end":"14:08","startHours":13.130572183640158,"endHours":14.130572183640158,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:08","end":"15:08","startHours":14.130572183640158,"endHours":15.130572183640158,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:08","end":"16:08","startHours":15.130572183640158,"endHours":16.130572183640158,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:08","end":"17:08","startHours":16.130572183640158,"endHours":17.130572183640158,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:08","end":"18:08","startHours":17.130572183640158,"endHours":18.130572183640158,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:08","end":"19:08","startHours":18.130572183640158,"endHours":19.130572183640158,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:08","end":"20:08","startHours":19.130572183640158,"endHours":20.130572183640158,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:08","end":"21:08","startHours":20.130572183640158,"endHours":21.130572183640158,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:08","end":"22:08","startHours":21.130572183640158,"endHours":22.130572183640158,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:08","end":"23:08","startHours":22.130572183640158,"endHours":23.130572183640158,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:08","end":"00:08","startHours":23.130572183640158,"endHours":24.130572183640158,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:08","end":"01:08","startHours":24.130572183640158,"endHours":25.130572183640158,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:08","end":"02:08","startHours":25.130572183640158,"endHours":26.130572183640158,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:08","end":"03:08","startHours":26.130572183640158,"endHours":27.130572183640158,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:08","end":"04:08","startHours":27.130572183640158,"endHours":28.130572183640158,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:08","end":"05:08","startHours":28.130572183640158,"endHours":29.130572183640158,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:08","end":"06:08","startHours":29.130572183640158,"endHours":30.130572183640158,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:08","end":"07:08","startHours":30.130572183640158,"endHours":31.130572183640158,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"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":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Dhūmra","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":-23.377266159999582,"eotMinutes":2.787727348141232,"ayanamsa":23.14}},"calendars":{"vikram_samvat":2005,"vikram_samvatsara":"Plava","saka_samvat":1870,"saka_samvatsara":"Sarvadhāri","bengali_samvat":1355,"malayalam_era":1124,"nanakshahi_year":479,"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 Dvitīyā · Vikram 2005 Plava · Śaka 1870 Sarvadhāri"},"festivals":[],"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":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Punarvasu","url":"/day/-1626101-04-03","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 December 18, 1948 CE · Ṛṣikeśa · Vidhyamitra","description":"December 18, 1948 CE for Ṛṣikeśa: Kṛṣṇa Dvitīyā, sūryodaya 07:08, sūryāsta 17:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1948-12-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1948-12-18","sa":"https://sa.vidhyamitra.com/city/rishikesh/1948-12-18","hi":"https://hi.vidhyamitra.com/city/rishikesh/1948-12-18","x-default":"https://vidhyamitra.com/city/rishikesh/1948-12-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T15:00:45.078Z","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":"2026-05-31T15:00:45.078Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T15:00:45.078Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}