{"id":"vidhyamitra:city-day:rishikesh:1958-12-25:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1958-12-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1958-12-25","date_display":"December 25, 1958 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":1958,"month":12,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2436562.770833,"kali_year":5060,"ahargana":1848097.2708,"sun":{"sidereal_longitude":249.2568,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":55.6689,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":166.4121,"elapsed_within_tithi_degrees":10.4121},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":55.6689,"elapsed_within_degrees":2.3356},"yoga":{"number":23,"name":"Śubha","sum_longitude":304.9256},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1958,"month":12,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2436562.770833,"ahargana":1848097.2708,"kali_year":5060,"ayanamsa_lahiri":23.28,"grahas":{"sun":{"sidereal_longitude":249.45584200000008,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"moon":{"sidereal_longitude":56.57014200000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false,"latitude":-3.7624},"mars":{"sidereal_longitude":24.096341999999993,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":228.33414200000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":209.94464199999993,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":260.60264200000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":245.839242,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":178.9129,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":358.9129,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"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":1958,"month":12,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2436562.770833,"kali_year":5060,"ahargana":1848097.2708,"sun":{"sidereal_longitude":249.2568,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":55.6689,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":166.4121,"elapsed_within_tithi_degrees":10.4121},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":55.6689,"elapsed_within_degrees":2.3356},"yoga":{"number":23,"name":"Śubha","sum_longitude":304.9256},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.762,"elongation":166.412},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.762,"opposition_distance":13.588}},"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":"07:11","sunsetLocal":"17:24","solarNoonLocal":"12:17","dayLengthHours":10.207368948451752,"dayLengthDisplay":"10 Hours 12 Mins 27 Secs","nightLengthDisplay":"13 Hours 47 Mins 33 Secs","moonriseLocal":"16:26","moonsetLocal":"06:26","rahuKala":{"name":"Rāhu Kāla","start":"13:34","end":"14:51","startHours":13.566305400924294,"endHours":14.842226519480764,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:11","end":"08:28","startHours":7.18669980814195,"endHours":8.462620926698419,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:44","end":"11:01","startHours":9.738542045254889,"endHours":11.014463163811357,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:34","end":"09:55","startHours":9.568419229447358,"endHours":9.908664861062416,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:37","end":"07:53","startHours":7.612006847660773,"endHours":7.884203352952819,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:38","startHours":11.950138650752766,"endHours":12.630629913982883,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:50","end":"06:30","startHours":5.825717281681716,"endHours":6.506208544911833,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:20","end":"07:11","startHours":6.336085729104304,"endHours":7.18669980814195,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:59","end":"14:40","startHours":13.991612440443117,"endHours":14.672103703673233,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:12","end":"17:36","startHours":17.1940687565937,"endHours":17.5940687565937,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:24","end":"17:49","startHours":17.3940687565937,"endHours":17.819375796112524,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:09","end":"18:54","startHours":17.1440687565937,"endHours":18.8940687565937,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:38","startHours":23.950138650752766,"endHours":24.630629913982883,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:11","end":"08:28","startHours":7.18669980814195,"endHours":8.462620926698419,"quality":"auspicious"},{"name":"Roga","start":"08:28","end":"09:44","startHours":8.462620926698419,"endHours":9.738542045254889,"quality":"inauspicious"},{"name":"Udveg","start":"09:44","end":"11:01","startHours":9.738542045254889,"endHours":11.014463163811357,"quality":"inauspicious"},{"name":"Chala","start":"11:01","end":"12:17","startHours":11.014463163811357,"endHours":12.290384282367825,"quality":"neutral"},{"name":"Labha","start":"12:17","end":"13:34","startHours":12.290384282367825,"endHours":13.566305400924294,"quality":"auspicious"},{"name":"Amṛta","start":"13:34","end":"14:51","startHours":13.566305400924294,"endHours":14.842226519480764,"quality":"auspicious"},{"name":"Kāla","start":"14:51","end":"16:07","startHours":14.842226519480764,"endHours":16.118147638037232,"quality":"inauspicious"},{"name":"Śubha","start":"16:07","end":"17:24","startHours":16.118147638037232,"endHours":17.3940687565937,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:24","end":"19:07","startHours":17.3940687565937,"endHours":19.118147638037232,"quality":"auspicious"},{"name":"Kāla","start":"19:07","end":"20:51","startHours":19.118147638037232,"endHours":20.84222651948076,"quality":"inauspicious"},{"name":"Śubha","start":"20:51","end":"22:34","startHours":20.84222651948076,"endHours":22.566305400924293,"quality":"auspicious"},{"name":"Roga","start":"22:34","end":"00:17","startHours":22.566305400924293,"endHours":24.290384282367825,"quality":"inauspicious"},{"name":"Udveg","start":"00:17","end":"02:01","startHours":24.290384282367825,"endHours":26.014463163811357,"quality":"inauspicious"},{"name":"Chala","start":"02:01","end":"03:44","startHours":26.014463163811357,"endHours":27.73854204525489,"quality":"neutral"},{"name":"Labha","start":"03:44","end":"05:28","startHours":27.73854204525489,"endHours":29.462620926698417,"quality":"auspicious"},{"name":"Amṛta","start":"05:28","end":"07:11","startHours":29.462620926698417,"endHours":31.18669980814195,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:11","end":"08:11","startHours":7.18669980814195,"endHours":8.186699808141949,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:11","end":"09:11","startHours":8.186699808141949,"endHours":9.186699808141949,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:11","end":"10:11","startHours":9.186699808141949,"endHours":10.186699808141949,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:11","end":"11:11","startHours":10.186699808141949,"endHours":11.186699808141949,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:11","end":"12:11","startHours":11.186699808141949,"endHours":12.186699808141949,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:11","end":"13:11","startHours":12.186699808141949,"endHours":13.186699808141949,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:11","end":"14:11","startHours":13.186699808141949,"endHours":14.186699808141949,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:11","end":"15:11","startHours":14.186699808141949,"endHours":15.186699808141949,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:11","end":"16:11","startHours":15.186699808141949,"endHours":16.18669980814195,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:11","end":"17:11","startHours":16.18669980814195,"endHours":17.18669980814195,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:11","end":"18:11","startHours":17.18669980814195,"endHours":18.18669980814195,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:11","end":"19:11","startHours":18.18669980814195,"endHours":19.18669980814195,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:11","end":"20:11","startHours":19.18669980814195,"endHours":20.18669980814195,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:11","end":"21:11","startHours":20.18669980814195,"endHours":21.18669980814195,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:11","end":"22:11","startHours":21.18669980814195,"endHours":22.18669980814195,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:11","end":"23:11","startHours":22.18669980814195,"endHours":23.18669980814195,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:11","end":"00:11","startHours":23.18669980814195,"endHours":24.18669980814195,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:11","end":"01:11","startHours":24.18669980814195,"endHours":25.18669980814195,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:11","end":"02:11","startHours":25.18669980814195,"endHours":26.18669980814195,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:11","end":"03:11","startHours":26.18669980814195,"endHours":27.18669980814195,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:11","end":"04:11","startHours":27.18669980814195,"endHours":28.18669980814195,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:11","end":"05:11","startHours":28.18669980814195,"endHours":29.18669980814195,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:11","end":"06:11","startHours":29.18669980814195,"endHours":30.18669980814195,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:11","end":"07:11","startHours":30.18669980814195,"endHours":31.18669980814195,"planetary_lord":"Moon"}],"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Amṛta","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":-23.40819359749385,"eotMinutes":-0.4934569420694592,"ayanamsa":23.28}},"calendars":{"vikram_samvat":2015,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1880,"saka_samvatsara":"Vilambī","bengali_samvat":1365,"malayalam_era":1134,"nanakshahi_year":489,"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 Caturdaśī · Vikram 2015 Virodhakṛt · Śaka 1880 Vilambī"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 25, 1958 CE · Ṛṣikeśa · Vidhyamitra","description":"December 25, 1958 CE for Ṛṣikeśa: Śukla Caturdaśī, sūryodaya 07:11, sūryāsta 17:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1958-12-25","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1958-12-25","sa":"https://sa.vidhyamitra.com/city/rishikesh/1958-12-25","hi":"https://hi.vidhyamitra.com/city/rishikesh/1958-12-25","x-default":"https://vidhyamitra.com/city/rishikesh/1958-12-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T19:25:21.242Z","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":"2026-05-31T19:25:21.242Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T19:25:21.242Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}