{"id":"vidhyamitra:city-day:rishikesh:2100-12-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2100-12-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2100-12-27","date_display":"December 27, 2100 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":2100,"month":12,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488429.770833,"kali_year":5202,"ahargana":1899964.2708,"sun":{"sidereal_longitude":249.5204,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":197.3927,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":307.8723,"elapsed_within_tithi_degrees":7.8723},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":197.3927,"elapsed_within_degrees":10.7261},"yoga":{"number":7,"name":"Sukarma","sum_longitude":86.9132},"karana":{"half_tithi_index":51,"name":"Bālava"},"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":2100,"month":12,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488429.770833,"ahargana":1899964.2708,"kali_year":5202,"ayanamsa_lahiri":25.2637,"grahas":{"sun":{"sidereal_longitude":250.05154100000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":195.20644100000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false,"latitude":-4.1306},"mars":{"sidereal_longitude":223.81104099999993,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":264.42654100000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":199.888241,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":232.93414099999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":190.014541,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":310.7497,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":130.7497,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":2100,"month":12,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488429.770833,"kali_year":5202,"ahargana":1899964.2708,"sun":{"sidereal_longitude":249.5204,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":197.3927,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":307.8723,"elapsed_within_tithi_degrees":7.8723},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":197.3927,"elapsed_within_degrees":10.7261},"yoga":{"number":7,"name":"Sukarma","sum_longitude":86.9132},"karana":{"half_tithi_index":51,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.131,"elongation":52.128},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.131,"opposition_distance":127.872}},"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":"12:18","dayLengthHours":10.214677383156914,"dayLengthDisplay":"10 Hours 12 Mins 53 Secs","nightLengthDisplay":"13 Hours 47 Mins 07 Secs","moonriseLocal":"03:12","moonsetLocal":"14:06","rahuKala":{"name":"Rāhu Kāla","start":"08:29","end":"09:45","startHours":8.475401083240007,"endHours":9.75223575613462,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:02","end":"12:18","startHours":11.029070429029234,"endHours":12.305905101923848,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:35","end":"14:52","startHours":13.582739774818464,"endHours":14.859574447713078,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:35","end":"09:55","startHours":9.581991133082006,"endHours":9.922480379187235,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:37","end":"07:54","startHours":7.62417796797693,"endHours":7.896569364861114,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:39","startHours":11.96541585581862,"endHours":12.64639434802908,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:50","end":"06:31","startHours":5.83660942592447,"endHours":6.5175879181349305,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:21","end":"07:12","startHours":6.347343295082315,"endHours":7.198566410345392,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:41","startHours":14.008351332450001,"endHours":14.689329824660462,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:13","end":"17:37","startHours":17.213243793502308,"endHours":17.613243793502306,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:25","end":"17:50","startHours":17.413243793502307,"endHours":17.838855351133844,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:10","end":"18:55","startHours":17.163243793502307,"endHours":18.913243793502307,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:39","startHours":23.965415855818616,"endHours":24.64639434802908,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:12","end":"08:29","startHours":7.198566410345392,"endHours":8.475401083240007,"quality":"auspicious"},{"name":"Kāla","start":"08:29","end":"09:45","startHours":8.475401083240007,"endHours":9.75223575613462,"quality":"inauspicious"},{"name":"Śubha","start":"09:45","end":"11:02","startHours":9.75223575613462,"endHours":11.029070429029234,"quality":"auspicious"},{"name":"Roga","start":"11:02","end":"12:18","startHours":11.029070429029234,"endHours":12.305905101923848,"quality":"inauspicious"},{"name":"Udveg","start":"12:18","end":"13:35","startHours":12.305905101923848,"endHours":13.582739774818464,"quality":"inauspicious"},{"name":"Chala","start":"13:35","end":"14:52","startHours":13.582739774818464,"endHours":14.859574447713078,"quality":"neutral"},{"name":"Labha","start":"14:52","end":"16:08","startHours":14.859574447713078,"endHours":16.13640912060769,"quality":"auspicious"},{"name":"Amṛta","start":"16:08","end":"17:25","startHours":16.13640912060769,"endHours":17.413243793502307,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:25","end":"19:08","startHours":17.413243793502307,"endHours":19.13640912060769,"quality":"neutral"},{"name":"Labha","start":"19:08","end":"20:52","startHours":19.13640912060769,"endHours":20.85957444771308,"quality":"auspicious"},{"name":"Amṛta","start":"20:52","end":"22:35","startHours":20.85957444771308,"endHours":22.582739774818464,"quality":"auspicious"},{"name":"Kāla","start":"22:35","end":"00:18","startHours":22.582739774818464,"endHours":24.305905101923848,"quality":"inauspicious"},{"name":"Śubha","start":"00:18","end":"02:02","startHours":24.305905101923848,"endHours":26.029070429029236,"quality":"auspicious"},{"name":"Roga","start":"02:02","end":"03:45","startHours":26.029070429029236,"endHours":27.75223575613462,"quality":"inauspicious"},{"name":"Udveg","start":"03:45","end":"05:29","startHours":27.75223575613462,"endHours":29.47540108324001,"quality":"inauspicious"},{"name":"Chala","start":"05:29","end":"07:12","startHours":29.47540108324001,"endHours":31.198566410345393,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:12","end":"08:12","startHours":7.198566410345392,"endHours":8.198566410345393,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:12","end":"09:12","startHours":8.198566410345393,"endHours":9.198566410345393,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:12","end":"10:12","startHours":9.198566410345393,"endHours":10.198566410345393,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:12","end":"11:12","startHours":10.198566410345393,"endHours":11.198566410345393,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:12","end":"12:12","startHours":11.198566410345393,"endHours":12.198566410345393,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:12","end":"13:12","startHours":12.198566410345393,"endHours":13.198566410345393,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:12","end":"14:12","startHours":13.198566410345393,"endHours":14.198566410345393,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:12","end":"15:12","startHours":14.198566410345393,"endHours":15.198566410345393,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:12","end":"16:12","startHours":15.198566410345393,"endHours":16.198566410345393,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:12","end":"17:12","startHours":16.198566410345393,"endHours":17.198566410345393,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:12","end":"18:12","startHours":17.198566410345393,"endHours":18.198566410345393,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:12","end":"19:12","startHours":18.198566410345393,"endHours":19.198566410345393,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:12","end":"20:12","startHours":19.198566410345393,"endHours":20.198566410345393,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:12","end":"21:12","startHours":20.198566410345393,"endHours":21.198566410345393,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:12","end":"22:12","startHours":21.198566410345393,"endHours":22.198566410345393,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:12","end":"23:12","startHours":22.198566410345393,"endHours":23.198566410345393,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:12","end":"00:12","startHours":23.198566410345393,"endHours":24.198566410345393,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:12","end":"01:12","startHours":24.198566410345393,"endHours":25.198566410345393,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:12","end":"02:12","startHours":25.198566410345393,"endHours":26.198566410345393,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:12","end":"03:12","startHours":26.198566410345393,"endHours":27.198566410345393,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:12","end":"04:12","startHours":27.198566410345393,"endHours":28.198566410345393,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:12","end":"05:12","startHours":28.198566410345393,"endHours":29.198566410345393,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:12","end":"06:12","startHours":29.198566410345393,"endHours":30.198566410345393,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:12","end":"07:12","startHours":30.198566410345393,"endHours":31.198566410345393,"planetary_lord":"Venus"}],"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":"North-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":-23.32974432034919,"eotMinutes":-1.4247061154310068,"ayanamsa":25.2637}},"calendars":{"vikram_samvat":2157,"vikram_samvatsara":"Śrīmukha","saka_samvat":2022,"saka_samvatsara":"Raudra","bengali_samvat":1507,"malayalam_era":1276,"nanakshahi_year":631,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","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":"Pauṣa Kṛṣṇa Ekādaśī · Vikram 2157 Śrīmukha · Śaka 2022 Raudra"},"festivals":[{"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}],"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 27, 2100 CE · Ṛṣikeśa · Vidhyamitra","description":"December 27, 2100 CE for Ṛṣikeśa: Kṛṣṇa Ekādaśī, sūryodaya 07:12, sūryāsta 17:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2100-12-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2100-12-27","sa":"https://sa.vidhyamitra.com/city/rishikesh/2100-12-27","hi":"https://hi.vidhyamitra.com/city/rishikesh/2100-12-27","x-default":"https://vidhyamitra.com/city/rishikesh/2100-12-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T01:59:46.588Z","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":"2026-06-01T01:59:46.588Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T01:59:46.588Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}