{"id":"vidhyamitra:city-day:rishikesh:1972-12-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1972-12-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1972-12-28","date_display":"December 28, 1972 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":1972,"month":12,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441679.770833,"kali_year":5074,"ahargana":1853214.2708,"sun":{"sidereal_longitude":252.7283,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":167.109,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":274.3807,"elapsed_within_tithi_degrees":10.3807},"nakshatra":{"number":13,"name":"Hasta","pada":3,"moon_longitude":167.109,"elapsed_within_degrees":7.109},"yoga":{"number":5,"name":"Śobhana","sum_longitude":59.8374},"karana":{"half_tithi_index":45,"name":"Kaulava"},"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":1972,"month":12,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441679.770833,"ahargana":1853214.2708,"kali_year":5074,"ayanamsa_lahiri":23.4757,"grahas":{"sun":{"sidereal_longitude":252.93013500000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":169.90463499999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false,"latitude":-4.4219},"mars":{"sidereal_longitude":215.10503500000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":235.68823499999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":263.96543499999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":228.45723499999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":52.41413499999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":267.7896,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":87.7896,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"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":1972,"month":12,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441679.770833,"kali_year":5074,"ahargana":1853214.2708,"sun":{"sidereal_longitude":252.7283,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":167.109,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":274.3807,"elapsed_within_tithi_degrees":10.3807},"nakshatra":{"number":13,"name":"Hasta","pada":3,"moon_longitude":167.109,"elapsed_within_degrees":7.109},"yoga":{"number":5,"name":"Śobhana","sum_longitude":59.8374},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.422,"elongation":85.619},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.422,"opposition_distance":94.381}},"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":"07:12","sunsetLocal":"17:25","solarNoonLocal":"12:19","dayLengthHours":10.21916508145273,"dayLengthDisplay":"10 Hours 13 Mins 09 Secs","nightLengthDisplay":"13 Hours 46 Mins 51 Secs","moonriseLocal":"00:56","moonsetLocal":"12:37","rahuKala":{"name":"Rāhu Kāla","start":"13:35","end":"14:52","startHours":13.59100737625305,"endHours":14.86840301143464,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:12","end":"08:29","startHours":7.204029200345094,"endHours":8.481424835526685,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:46","end":"11:02","startHours":9.758820470708276,"endHours":11.036216105889867,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:35","end":"09:56","startHours":9.588501052684064,"endHours":9.929139888732488,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:38","end":"07:54","startHours":7.629827745405624,"endHours":7.902338814244364,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:39","startHours":11.972972905023035,"endHours":12.654250577119882,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:50","end":"06:31","startHours":5.841473856151397,"endHours":6.522751528248245,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:21","end":"07:12","startHours":6.352432110224033,"endHours":7.204029200345094,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:42","startHours":14.01680592131358,"endHours":14.698083593410429,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:13","end":"17:37","startHours":17.223194281797824,"endHours":17.623194281797822,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:25","end":"17:51","startHours":17.423194281797823,"endHours":17.848992826858353,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:10","end":"18:55","startHours":17.173194281797823,"endHours":18.923194281797823,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:39","startHours":23.972972905023035,"endHours":24.654250577119882,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:12","end":"08:29","startHours":7.204029200345094,"endHours":8.481424835526685,"quality":"auspicious"},{"name":"Roga","start":"08:29","end":"09:46","startHours":8.481424835526685,"endHours":9.758820470708276,"quality":"inauspicious"},{"name":"Udveg","start":"09:46","end":"11:02","startHours":9.758820470708276,"endHours":11.036216105889867,"quality":"inauspicious"},{"name":"Chala","start":"11:02","end":"12:19","startHours":11.036216105889867,"endHours":12.313611741071458,"quality":"neutral"},{"name":"Labha","start":"12:19","end":"13:35","startHours":12.313611741071458,"endHours":13.59100737625305,"quality":"auspicious"},{"name":"Amṛta","start":"13:35","end":"14:52","startHours":13.59100737625305,"endHours":14.86840301143464,"quality":"auspicious"},{"name":"Kāla","start":"14:52","end":"16:09","startHours":14.86840301143464,"endHours":16.14579864661623,"quality":"inauspicious"},{"name":"Śubha","start":"16:09","end":"17:25","startHours":16.14579864661623,"endHours":17.423194281797823,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:25","end":"19:09","startHours":17.423194281797823,"endHours":19.14579864661623,"quality":"auspicious"},{"name":"Kāla","start":"19:09","end":"20:52","startHours":19.14579864661623,"endHours":20.86840301143464,"quality":"inauspicious"},{"name":"Śubha","start":"20:52","end":"22:35","startHours":20.86840301143464,"endHours":22.59100737625305,"quality":"auspicious"},{"name":"Roga","start":"22:35","end":"00:19","startHours":22.59100737625305,"endHours":24.31361174107146,"quality":"inauspicious"},{"name":"Udveg","start":"00:19","end":"02:02","startHours":24.31361174107146,"endHours":26.036216105889867,"quality":"inauspicious"},{"name":"Chala","start":"02:02","end":"03:46","startHours":26.036216105889867,"endHours":27.758820470708276,"quality":"neutral"},{"name":"Labha","start":"03:46","end":"05:29","startHours":27.758820470708276,"endHours":29.481424835526685,"quality":"auspicious"},{"name":"Amṛta","start":"05:29","end":"07:12","startHours":29.481424835526685,"endHours":31.204029200345094,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:12","end":"08:12","startHours":7.204029200345094,"endHours":8.204029200345094,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:12","end":"09:12","startHours":8.204029200345094,"endHours":9.204029200345094,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:12","end":"10:12","startHours":9.204029200345094,"endHours":10.204029200345094,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:12","end":"11:12","startHours":10.204029200345094,"endHours":11.204029200345094,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:12","end":"12:12","startHours":11.204029200345094,"endHours":12.204029200345094,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:12","end":"13:12","startHours":12.204029200345094,"endHours":13.204029200345094,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:12","end":"14:12","startHours":13.204029200345094,"endHours":14.204029200345094,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:12","end":"15:12","startHours":14.204029200345094,"endHours":15.204029200345094,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:12","end":"16:12","startHours":15.204029200345094,"endHours":16.204029200345094,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:12","end":"17:12","startHours":16.204029200345094,"endHours":17.204029200345094,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:12","end":"18:12","startHours":17.204029200345094,"endHours":18.204029200345094,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:12","end":"19:12","startHours":18.204029200345094,"endHours":19.204029200345094,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:12","end":"20:12","startHours":19.204029200345094,"endHours":20.204029200345094,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:12","end":"21:12","startHours":20.204029200345094,"endHours":21.204029200345094,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:12","end":"22:12","startHours":21.204029200345094,"endHours":22.204029200345094,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:12","end":"23:12","startHours":22.204029200345094,"endHours":23.204029200345094,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:12","end":"00:12","startHours":23.204029200345094,"endHours":24.204029200345094,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:12","end":"01:12","startHours":24.204029200345094,"endHours":25.204029200345094,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:12","end":"02:12","startHours":25.204029200345094,"endHours":26.204029200345094,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:12","end":"03:12","startHours":26.204029200345094,"endHours":27.204029200345094,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:12","end":"04:12","startHours":27.204029200345094,"endHours":28.204029200345094,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:12","end":"05:12","startHours":28.204029200345094,"endHours":29.204029200345094,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:12","end":"06:12","startHours":29.204029200345094,"endHours":30.204029200345094,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:12","end":"07:12","startHours":30.204029200345094,"endHours":31.204029200345094,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North-West","rahuVasa":"North-West","anandadiYoga":{"name":"Ānanda","quality":"Auspicious"},"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":-23.281519626743936,"eotMinutes":-1.8871044642874448,"ayanamsa":23.4757}},"calendars":{"vikram_samvat":2029,"vikram_samvatsara":"Krodhana","saka_samvat":1894,"saka_samvatsara":"Paridhāvi","bengali_samvat":1379,"malayalam_era":1148,"nanakshahi_year":503,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Aṣṭamī · Vikram 2029 Krodhana · Śaka 1894 Paridhāvi"},"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":"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":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","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 28, 1972 CE · Ṛṣikeśa · Vidhyamitra","description":"December 28, 1972 CE for Ṛṣikeśa: Kṛṣṇa Aṣṭamī, sūryodaya 07:12, sūryāsta 17:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1972-12-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1972-12-28","sa":"https://sa.vidhyamitra.com/city/rishikesh/1972-12-28","hi":"https://hi.vidhyamitra.com/city/rishikesh/1972-12-28","x-default":"https://vidhyamitra.com/city/rishikesh/1972-12-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-19T15:23:00.732Z","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":"2026-05-19T15:23:00.732Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-19T15:23:00.732Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}