{"id":"vidhyamitra:city-day:rishikesh:2013-12-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2013-12-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2013-12-28","date_display":"December 28, 2013 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":2013,"month":12,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456654.770833,"kali_year":5115,"ahargana":1868189.2708,"sun":{"sidereal_longitude":252.1023,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":194.5387,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":302.4365,"elapsed_within_tithi_degrees":2.4365},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":194.5387,"elapsed_within_degrees":7.8721},"yoga":{"number":7,"name":"Sukarma","sum_longitude":86.641},"karana":{"half_tithi_index":50,"name":"Bava"},"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":2013,"month":12,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456654.770833,"ahargana":1868189.2708,"kali_year":5115,"ayanamsa_lahiri":24.0484,"grahas":{"sun":{"sidereal_longitude":252.40598,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":192.17228,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false,"latitude":0.0154},"mars":{"sidereal_longitude":165.59248000000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":251.52157999999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":81.95398,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":true},"venus":{"sidereal_longitude":273.95168,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":205.67827999999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":194.3421,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":14.3421,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":2013,"month":12,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456654.770833,"kali_year":5115,"ahargana":1868189.2708,"sun":{"sidereal_longitude":252.1023,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":194.5387,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":302.4365,"elapsed_within_tithi_degrees":2.4365},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":194.5387,"elapsed_within_degrees":7.8721},"yoga":{"number":7,"name":"Sukarma","sum_longitude":86.641},"karana":{"half_tithi_index":50,"name":"Bava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.015,"elongation":57.564},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.015,"opposition_distance":122.436}},"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":10.219384040863979,"dayLengthDisplay":"10 Hours 13 Mins 10 Secs","nightLengthDisplay":"13 Hours 46 Mins 50 Secs","moonriseLocal":"02:47","moonsetLocal":"13:48","rahuKala":{"name":"Rāhu Kāla","start":"09:46","end":"11:02","startHours":9.758765730855462,"endHours":11.03618873596346,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:35","end":"14:52","startHours":13.591034746179455,"endHours":14.868457751287451,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:12","end":"08:29","startHours":7.203919720639468,"endHours":8.481342725747465,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:35","end":"09:56","startHours":9.58844266350773,"endHours":9.929088798203196,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:38","end":"07:54","startHours":7.6297273890088,"endHours":7.902244296765173,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:39","startHours":11.972965606375991,"endHours":12.654257875766925,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:50","end":"06:31","startHours":5.8413351818576045,"endHours":6.522627451248536,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:21","end":"07:12","startHours":6.352304383900803,"endHours":7.203919720639468,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:42","startHours":14.016842414548787,"endHours":14.698134683939719,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:13","end":"17:37","startHours":17.22330376150345,"endHours":17.623303761503447,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:25","end":"17:51","startHours":17.423303761503448,"endHours":17.84911142987278,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:10","end":"18:55","startHours":17.173303761503448,"endHours":18.923303761503448,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:39","startHours":23.972965606375993,"endHours":24.654257875766923,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:12","end":"08:29","startHours":7.203919720639468,"endHours":8.481342725747465,"quality":"inauspicious"},{"name":"Śubha","start":"08:29","end":"09:46","startHours":8.481342725747465,"endHours":9.758765730855462,"quality":"auspicious"},{"name":"Roga","start":"09:46","end":"11:02","startHours":9.758765730855462,"endHours":11.03618873596346,"quality":"inauspicious"},{"name":"Udveg","start":"11:02","end":"12:19","startHours":11.03618873596346,"endHours":12.313611741071458,"quality":"inauspicious"},{"name":"Chala","start":"12:19","end":"13:35","startHours":12.313611741071458,"endHours":13.591034746179455,"quality":"neutral"},{"name":"Labha","start":"13:35","end":"14:52","startHours":13.591034746179455,"endHours":14.868457751287451,"quality":"auspicious"},{"name":"Amṛta","start":"14:52","end":"16:09","startHours":14.868457751287451,"endHours":16.14588075639545,"quality":"auspicious"},{"name":"Kāla","start":"16:09","end":"17:25","startHours":16.14588075639545,"endHours":17.423303761503448,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:25","end":"19:09","startHours":17.423303761503448,"endHours":19.14588075639545,"quality":"auspicious"},{"name":"Amṛta","start":"19:09","end":"20:52","startHours":19.14588075639545,"endHours":20.86845775128745,"quality":"auspicious"},{"name":"Kāla","start":"20:52","end":"22:35","startHours":20.86845775128745,"endHours":22.591034746179457,"quality":"inauspicious"},{"name":"Śubha","start":"22:35","end":"00:19","startHours":22.591034746179457,"endHours":24.31361174107146,"quality":"auspicious"},{"name":"Roga","start":"00:19","end":"02:02","startHours":24.31361174107146,"endHours":26.03618873596346,"quality":"inauspicious"},{"name":"Udveg","start":"02:02","end":"03:46","startHours":26.03618873596346,"endHours":27.758765730855465,"quality":"inauspicious"},{"name":"Chala","start":"03:46","end":"05:29","startHours":27.758765730855465,"endHours":29.481342725747467,"quality":"neutral"},{"name":"Labha","start":"05:29","end":"07:12","startHours":29.481342725747467,"endHours":31.20391972063947,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:12","end":"08:12","startHours":7.203919720639468,"endHours":8.203919720639469,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:12","end":"09:12","startHours":8.203919720639469,"endHours":9.203919720639469,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:12","end":"10:12","startHours":9.203919720639469,"endHours":10.203919720639469,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:12","end":"11:12","startHours":10.203919720639469,"endHours":11.203919720639469,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:12","end":"12:12","startHours":11.203919720639469,"endHours":12.203919720639469,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:12","end":"13:12","startHours":12.203919720639469,"endHours":13.203919720639469,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:12","end":"14:12","startHours":13.203919720639469,"endHours":14.203919720639469,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:12","end":"15:12","startHours":14.203919720639469,"endHours":15.203919720639469,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:12","end":"16:12","startHours":15.203919720639469,"endHours":16.20391972063947,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:12","end":"17:12","startHours":16.20391972063947,"endHours":17.20391972063947,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:12","end":"18:12","startHours":17.20391972063947,"endHours":18.20391972063947,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:12","end":"19:12","startHours":18.20391972063947,"endHours":19.20391972063947,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:12","end":"20:12","startHours":19.20391972063947,"endHours":20.20391972063947,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:12","end":"21:12","startHours":20.20391972063947,"endHours":21.20391972063947,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:12","end":"22:12","startHours":21.20391972063947,"endHours":22.20391972063947,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:12","end":"23:12","startHours":22.20391972063947,"endHours":23.20391972063947,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:12","end":"00:12","startHours":23.20391972063947,"endHours":24.20391972063947,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:12","end":"01:12","startHours":24.20391972063947,"endHours":25.20391972063947,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:12","end":"02:12","startHours":25.20391972063947,"endHours":26.20391972063947,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:12","end":"03:12","startHours":26.20391972063947,"endHours":27.20391972063947,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:12","end":"04:12","startHours":27.20391972063947,"endHours":28.20391972063947,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:12","end":"05:12","startHours":28.20391972063947,"endHours":29.20391972063947,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:12","end":"06:12","startHours":29.20391972063947,"endHours":30.20391972063947,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:12","end":"07:12","startHours":30.20391972063947,"endHours":31.20391972063947,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"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":"East","anandadiYoga":{"name":"Chatra","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":-23.279165655464897,"eotMinutes":-1.8871044642874448,"ayanamsa":24.0484}},"calendars":{"vikram_samvat":2070,"vikram_samvatsara":"Parābhava","saka_samvat":1935,"saka_samvatsara":"Vijaya","bengali_samvat":1420,"malayalam_era":1189,"nanakshahi_year":544,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Ekādaśī · Vikram 2070 Parābhava · Śaka 1935 Vijaya"},"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":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5},{"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":"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":[]},"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, 2013 CE · Ṛṣikeśa · Vidhyamitra","description":"December 28, 2013 CE for Ṛṣikeśa: Kṛṣṇa Ekādaśī, sūryodaya 07:12, sūryāsta 17:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2013-12-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2013-12-28","sa":"https://sa.vidhyamitra.com/city/rishikesh/2013-12-28","hi":"https://hi.vidhyamitra.com/city/rishikesh/2013-12-28","x-default":"https://vidhyamitra.com/city/rishikesh/2013-12-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T09:31:47.483Z","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":"2026-05-17T09:31:47.483Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T09:31:47.483Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}