{"id":"vidhyamitra:city-day:rishikesh:1955-12-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1955-12-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1955-12-23","date_display":"December 23, 1955 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":1955,"month":12,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2435464.770833,"kali_year":5057,"ahargana":1846999.2708,"sun":{"sidereal_longitude":246.9717,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":348.3774,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":101.4057,"elapsed_within_tithi_degrees":5.4057},"nakshatra":{"number":27,"name":"Revatī","pada":1,"moon_longitude":348.3774,"elapsed_within_degrees":1.7107},"yoga":{"number":18,"name":"Varīyān","sum_longitude":235.349},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":1955,"month":12,"day":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2435464.770833,"ahargana":1846999.2708,"kali_year":5057,"ayanamsa_lahiri":23.238,"grahas":{"sun":{"sidereal_longitude":247.183993,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"moon":{"sidereal_longitude":344.856693,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false,"latitude":4.1924},"mars":{"sidereal_longitude":202.96499300000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":258.19589300000007,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":128.10189300000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":275.84279300000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":215.05839300000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":237.0902,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":57.0902,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":1955,"month":12,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2435464.770833,"kali_year":5057,"ahargana":1846999.2708,"sun":{"sidereal_longitude":246.9717,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":348.3774,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":101.4057,"elapsed_within_tithi_degrees":5.4057},"nakshatra":{"number":27,"name":"Revatī","pada":1,"moon_longitude":348.3774,"elapsed_within_degrees":1.7107},"yoga":{"number":18,"name":"Varīyān","sum_longitude":235.349},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.192,"elongation":101.406},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.192,"opposition_distance":78.594}},"eclipse_window_40days":[{"offset_days":-9,"type":"solar","occurs":true,"moon_latitude":-0.134,"elongation":1.874},{"offset_days":6,"type":"lunar","occurs":true,"moon_latitude":-1.144,"opposition_distance":1.618}]},"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":"07:10","sunsetLocal":"17:23","solarNoonLocal":"12:16","dayLengthHours":10.20479225037041,"dayLengthDisplay":"10 Hours 12 Mins 17 Secs","nightLengthDisplay":"13 Hours 47 Mins 43 Secs","moonriseLocal":"12:37","moonsetLocal":"00:57","rahuKala":{"name":"Rāhu Kāla","start":"11:00","end":"12:16","startHours":10.999169440508577,"endHours":12.27476847180488,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:50","end":"16:06","startHours":14.82596653439748,"endHours":16.101565565693782,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:27","end":"09:43","startHours":8.447971377915975,"endHours":9.723570409212275,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:33","end":"09:54","startHours":9.55349053837277,"endHours":9.893650280051784,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:36","end":"07:52","startHours":7.597572023718441,"endHours":7.869699817061652,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:37","startHours":11.934608730125866,"endHours":12.614928213483893,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:49","end":"06:30","startHours":5.811733379903619,"endHours":6.492052863261646,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:19","end":"07:10","startHours":6.32197299242214,"endHours":7.172372346619674,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:59","end":"14:39","startHours":13.975567180199947,"endHours":14.655886663557975,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:11","end":"17:35","startHours":17.177164596990085,"endHours":17.577164596990084,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:23","end":"17:48","startHours":17.377164596990085,"endHours":17.802364274088852,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:08","end":"18:53","startHours":17.127164596990085,"endHours":18.877164596990085,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:37","startHours":23.934608730125866,"endHours":24.614928213483893,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:10","end":"08:27","startHours":7.172372346619674,"endHours":8.447971377915975,"quality":"neutral"},{"name":"Labha","start":"08:27","end":"09:43","startHours":8.447971377915975,"endHours":9.723570409212275,"quality":"auspicious"},{"name":"Amṛta","start":"09:43","end":"11:00","startHours":9.723570409212275,"endHours":10.999169440508577,"quality":"auspicious"},{"name":"Kāla","start":"11:00","end":"12:16","startHours":10.999169440508577,"endHours":12.27476847180488,"quality":"inauspicious"},{"name":"Śubha","start":"12:16","end":"13:33","startHours":12.27476847180488,"endHours":13.55036750310118,"quality":"auspicious"},{"name":"Roga","start":"13:33","end":"14:50","startHours":13.55036750310118,"endHours":14.82596653439748,"quality":"inauspicious"},{"name":"Udveg","start":"14:50","end":"16:06","startHours":14.82596653439748,"endHours":16.101565565693782,"quality":"inauspicious"},{"name":"Chala","start":"16:06","end":"17:23","startHours":16.101565565693782,"endHours":17.377164596990085,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:23","end":"19:06","startHours":17.377164596990085,"endHours":19.101565565693782,"quality":"inauspicious"},{"name":"Udveg","start":"19:06","end":"20:50","startHours":19.101565565693782,"endHours":20.82596653439748,"quality":"inauspicious"},{"name":"Chala","start":"20:50","end":"22:33","startHours":20.82596653439748,"endHours":22.55036750310118,"quality":"neutral"},{"name":"Labha","start":"22:33","end":"00:16","startHours":22.55036750310118,"endHours":24.27476847180488,"quality":"auspicious"},{"name":"Amṛta","start":"00:16","end":"02:00","startHours":24.27476847180488,"endHours":25.999169440508577,"quality":"auspicious"},{"name":"Kāla","start":"02:00","end":"03:43","startHours":25.999169440508577,"endHours":27.72357040921228,"quality":"inauspicious"},{"name":"Śubha","start":"03:43","end":"05:27","startHours":27.72357040921228,"endHours":29.447971377915977,"quality":"auspicious"},{"name":"Roga","start":"05:27","end":"07:10","startHours":29.447971377915977,"endHours":31.172372346619674,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:10","end":"08:10","startHours":7.172372346619674,"endHours":8.172372346619674,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:10","end":"09:10","startHours":8.172372346619674,"endHours":9.172372346619674,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:10","end":"10:10","startHours":9.172372346619674,"endHours":10.172372346619674,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:10","end":"11:10","startHours":10.172372346619674,"endHours":11.172372346619674,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:10","end":"12:10","startHours":11.172372346619674,"endHours":12.172372346619674,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:10","end":"13:10","startHours":12.172372346619674,"endHours":13.172372346619674,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:10","end":"14:10","startHours":13.172372346619674,"endHours":14.172372346619674,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:10","end":"15:10","startHours":14.172372346619674,"endHours":15.172372346619674,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:10","end":"16:10","startHours":15.172372346619674,"endHours":16.172372346619674,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:10","end":"17:10","startHours":16.172372346619674,"endHours":17.172372346619674,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:10","end":"18:10","startHours":17.172372346619674,"endHours":18.172372346619674,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:10","end":"19:10","startHours":18.172372346619674,"endHours":19.172372346619674,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:10","end":"20:10","startHours":19.172372346619674,"endHours":20.172372346619674,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:10","end":"21:10","startHours":20.172372346619674,"endHours":21.172372346619674,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:10","end":"22:10","startHours":21.172372346619674,"endHours":22.172372346619674,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:10","end":"23:10","startHours":22.172372346619674,"endHours":23.172372346619674,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:10","end":"00:10","startHours":23.172372346619674,"endHours":24.172372346619674,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:10","end":"01:10","startHours":24.172372346619674,"endHours":25.172372346619674,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:10","end":"02:10","startHours":25.172372346619674,"endHours":26.172372346619674,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:10","end":"03:10","startHours":26.172372346619674,"endHours":27.172372346619674,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:10","end":"04:10","startHours":27.172372346619674,"endHours":28.172372346619674,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:10","end":"05:10","startHours":28.172372346619674,"endHours":29.172372346619674,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:10","end":"06:10","startHours":29.172372346619674,"endHours":30.172372346619674,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:10","end":"07:10","startHours":30.172372346619674,"endHours":31.172372346619674,"planetary_lord":"Mars"}],"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":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"South-East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.435826342607786,"eotMinutes":0.4434916917071845,"ayanamsa":23.238}},"calendars":{"vikram_samvat":2012,"vikram_samvatsara":"Kīlaka","saka_samvat":1877,"saka_samvatsara":"Manmatha","bengali_samvat":1362,"malayalam_era":1131,"nanakshahi_year":486,"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 Navamī · Vikram 2012 Kīlaka · Śaka 1877 Manmatha"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 Śukla Navamī","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 23, 1955 CE · Ṛṣikeśa · Vidhyamitra","description":"December 23, 1955 CE for Ṛṣikeśa: Śukla Navamī, sūryodaya 07:10, sūryāsta 17:23.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1955-12-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1955-12-23","sa":"https://sa.vidhyamitra.com/city/rishikesh/1955-12-23","hi":"https://hi.vidhyamitra.com/city/rishikesh/1955-12-23","x-default":"https://vidhyamitra.com/city/rishikesh/1955-12-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T15:38:18.394Z","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":"2026-05-31T15:38:18.394Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T15:38:18.394Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}