{"id":"vidhyamitra:city-day:rishikesh:1964-12-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1964-12-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1964-12-28","date_display":"December 28, 1964 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":1964,"month":12,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438757.770833,"kali_year":5066,"ahargana":1850292.2708,"sun":{"sidereal_longitude":252.8003,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":186.0069,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":293.2066,"elapsed_within_tithi_degrees":5.2066},"nakshatra":{"number":14,"name":"Citrā","pada":4,"moon_longitude":186.0069,"elapsed_within_degrees":12.6736},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":78.8073},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1964,"month":12,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438757.770833,"ahargana":1850292.2708,"kali_year":5066,"ayanamsa_lahiri":23.3639,"grahas":{"sun":{"sidereal_longitude":252.982977,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":189.17397700000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false,"latitude":3.7558},"mars":{"sidereal_longitude":149.70097699999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":235.668277,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":23.728976999999986,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":228.051877,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":308.258277,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":62.6113,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":242.6113,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"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":1964,"month":12,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438757.770833,"kali_year":5066,"ahargana":1850292.2708,"sun":{"sidereal_longitude":252.8003,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":186.0069,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":293.2066,"elapsed_within_tithi_degrees":5.2066},"nakshatra":{"number":14,"name":"Citrā","pada":4,"moon_longitude":186.0069,"elapsed_within_degrees":12.6736},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":78.8073},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.756,"elongation":66.793},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.756,"opposition_distance":113.207}},"eclipse_window_40days":[{"offset_days":-9,"type":"lunar","occurs":true,"moon_latitude":-0.087,"opposition_distance":1.579},{"offset_days":6,"type":"solar","occurs":true,"moon_latitude":-1.5,"elongation":2.813}]},"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":"07:12","sunsetLocal":"17:25","solarNoonLocal":"12:19","dayLengthHours":10.218901351488848,"dayLengthDisplay":"10 Hours 13 Mins 08 Secs","nightLengthDisplay":"13 Hours 46 Mins 52 Secs","moonriseLocal":"02:30","moonsetLocal":"13:37","rahuKala":{"name":"Rāhu Kāla","start":"08:29","end":"09:46","startHours":8.48152373426314,"endHours":9.758886403199245,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:02","end":"12:19","startHours":11.036249072135352,"endHours":12.313611741071458,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:35","end":"14:52","startHours":13.590974410007563,"endHours":14.86833707894367,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:35","end":"09:56","startHours":9.58857138067443,"endHours":9.92920142572406,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:38","end":"07:54","startHours":7.629948621639069,"endHours":7.902452657678771,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:39","startHours":11.97298169602183,"endHours":12.654241786121087,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:50","end":"06:31","startHours":5.841640885128521,"endHours":6.522900975227778,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:21","end":"07:12","startHours":6.352585952702963,"endHours":7.204161065327034,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:42","startHours":14.0167619663196,"endHours":14.698022056418855,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:13","end":"17:37","startHours":17.223062416815882,"endHours":17.62306241681588,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:25","end":"17:51","startHours":17.42306241681588,"endHours":17.848849973127916,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:10","end":"18:55","startHours":17.17306241681588,"endHours":18.92306241681588,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:39","startHours":23.97298169602183,"endHours":24.654241786121087,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:12","end":"08:29","startHours":7.204161065327034,"endHours":8.48152373426314,"quality":"auspicious"},{"name":"Kāla","start":"08:29","end":"09:46","startHours":8.48152373426314,"endHours":9.758886403199245,"quality":"inauspicious"},{"name":"Śubha","start":"09:46","end":"11:02","startHours":9.758886403199245,"endHours":11.036249072135352,"quality":"auspicious"},{"name":"Roga","start":"11:02","end":"12:19","startHours":11.036249072135352,"endHours":12.313611741071458,"quality":"inauspicious"},{"name":"Udveg","start":"12:19","end":"13:35","startHours":12.313611741071458,"endHours":13.590974410007563,"quality":"inauspicious"},{"name":"Chala","start":"13:35","end":"14:52","startHours":13.590974410007563,"endHours":14.86833707894367,"quality":"neutral"},{"name":"Labha","start":"14:52","end":"16:09","startHours":14.86833707894367,"endHours":16.145699747879775,"quality":"auspicious"},{"name":"Amṛta","start":"16:09","end":"17:25","startHours":16.145699747879775,"endHours":17.42306241681588,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:25","end":"19:09","startHours":17.42306241681588,"endHours":19.145699747879775,"quality":"neutral"},{"name":"Labha","start":"19:09","end":"20:52","startHours":19.145699747879775,"endHours":20.868337078943668,"quality":"auspicious"},{"name":"Amṛta","start":"20:52","end":"22:35","startHours":20.868337078943668,"endHours":22.59097441000756,"quality":"auspicious"},{"name":"Kāla","start":"22:35","end":"00:19","startHours":22.59097441000756,"endHours":24.31361174107146,"quality":"inauspicious"},{"name":"Śubha","start":"00:19","end":"02:02","startHours":24.31361174107146,"endHours":26.03624907213535,"quality":"auspicious"},{"name":"Roga","start":"02:02","end":"03:46","startHours":26.03624907213535,"endHours":27.758886403199245,"quality":"inauspicious"},{"name":"Udveg","start":"03:46","end":"05:29","startHours":27.758886403199245,"endHours":29.481523734263142,"quality":"inauspicious"},{"name":"Chala","start":"05:29","end":"07:12","startHours":29.481523734263142,"endHours":31.204161065327035,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:12","end":"08:12","startHours":7.204161065327034,"endHours":8.204161065327034,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:12","end":"09:12","startHours":8.204161065327034,"endHours":9.204161065327034,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:12","end":"10:12","startHours":9.204161065327034,"endHours":10.204161065327034,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:12","end":"11:12","startHours":10.204161065327034,"endHours":11.204161065327034,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:12","end":"12:12","startHours":11.204161065327034,"endHours":12.204161065327034,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:12","end":"13:12","startHours":12.204161065327034,"endHours":13.204161065327034,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:12","end":"14:12","startHours":13.204161065327034,"endHours":14.204161065327034,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:12","end":"15:12","startHours":14.204161065327034,"endHours":15.204161065327034,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:12","end":"16:12","startHours":15.204161065327034,"endHours":16.204161065327035,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:12","end":"17:12","startHours":16.204161065327035,"endHours":17.204161065327035,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:12","end":"18:12","startHours":17.204161065327035,"endHours":18.204161065327035,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:12","end":"19:12","startHours":18.204161065327035,"endHours":19.204161065327035,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:12","end":"20:12","startHours":19.204161065327035,"endHours":20.204161065327035,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:12","end":"21:12","startHours":20.204161065327035,"endHours":21.204161065327035,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:12","end":"22:12","startHours":21.204161065327035,"endHours":22.204161065327035,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:12","end":"23:12","startHours":22.204161065327035,"endHours":23.204161065327035,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:12","end":"00:12","startHours":23.204161065327035,"endHours":24.204161065327035,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:12","end":"01:12","startHours":24.204161065327035,"endHours":25.204161065327035,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:12","end":"02:12","startHours":25.204161065327035,"endHours":26.204161065327035,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:12","end":"03:12","startHours":26.204161065327035,"endHours":27.204161065327035,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:12","end":"04:12","startHours":27.204161065327035,"endHours":28.204161065327035,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:12","end":"05:12","startHours":28.204161065327035,"endHours":29.204161065327035,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:12","end":"06:12","startHours":29.204161065327035,"endHours":30.204161065327035,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:12","end":"07:12","startHours":30.204161065327035,"endHours":31.204161065327035,"planetary_lord":"Venus"}],"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":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"North-East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.2843547853939,"eotMinutes":-1.8871044642874448,"ayanamsa":23.3639}},"calendars":{"vikram_samvat":2021,"vikram_samvatsara":"Piṅgala","saka_samvat":1886,"saka_samvatsara":"Krodhi","bengali_samvat":1371,"malayalam_era":1140,"nanakshahi_year":495,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Daśamī · Vikram 2021 Piṅgala · Śaka 1886 Krodhi"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 28, 1964 CE · Ṛṣikeśa · Vidhyamitra","description":"December 28, 1964 CE for Ṛṣikeśa: Kṛṣṇa Daśamī, sūryodaya 07:12, sūryāsta 17:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1964-12-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1964-12-28","sa":"https://sa.vidhyamitra.com/city/rishikesh/1964-12-28","hi":"https://hi.vidhyamitra.com/city/rishikesh/1964-12-28","x-default":"https://vidhyamitra.com/city/rishikesh/1964-12-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T05:54:41.298Z","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":"2026-05-21T05:54:41.298Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T05:54:41.298Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}