{"id":"vidhyamitra:city-day:rishikesh:2100-12-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2100-12-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2100-12-23","date_display":"December 23, 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":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488425.770833,"kali_year":5202,"ahargana":1899960.2708,"sun":{"sidereal_longitude":245.4104,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":141.7115,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":256.3011,"elapsed_within_tithi_degrees":4.3011},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":141.7115,"elapsed_within_degrees":8.3781},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":27.1219},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"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":2100,"month":12,"day":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488425.770833,"ahargana":1899960.2708,"kali_year":5202,"ayanamsa_lahiri":25.2636,"grahas":{"sun":{"sidereal_longitude":245.97749399999998,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"moon":{"sidereal_longitude":139.485294,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false,"latitude":-0.8385},"mars":{"sidereal_longitude":220.98549400000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":258.2560940000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":199.16679399999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":227.914494,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":189.68319399999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":310.9616,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":130.9616,"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":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488425.770833,"kali_year":5202,"ahargana":1899960.2708,"sun":{"sidereal_longitude":245.4104,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":141.7115,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":256.3011,"elapsed_within_tithi_degrees":4.3011},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":141.7115,"elapsed_within_degrees":8.3781},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":27.1219},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.839,"elongation":103.699},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.839,"opposition_distance":76.301}},"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":"07:10","sunsetLocal":"17:23","solarNoonLocal":"12:16","dayLengthHours":10.205272845919858,"dayLengthDisplay":"10 Hours 12 Mins 19 Secs","nightLengthDisplay":"13 Hours 47 Mins 41 Secs","moonriseLocal":"22:54","moonsetLocal":"11:27","rahuKala":{"name":"Rāhu Kāla","start":"13:33","end":"14:50","startHours":13.55042757754486,"endHours":14.826086683284842,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:10","end":"08:27","startHours":7.17213204884495,"endHours":8.447791154584932,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:43","end":"11:00","startHours":9.723450260324913,"endHours":10.999109366064896,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:33","end":"09:54","startHours":9.553362379559584,"endHours":9.893538141090245,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:36","end":"07:52","startHours":7.5973517507582775,"endHours":7.869492359982807,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:37","startHours":11.934592710274218,"endHours":12.61494423333554,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:49","end":"06:30","startHours":5.811429002722302,"endHours":6.491780525783626,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:19","end":"07:10","startHours":6.321692645018295,"endHours":7.17213204884495,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:59","end":"14:39","startHours":13.975647279458189,"endHours":14.655998802519512,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:11","end":"17:35","startHours":17.17740489476481,"endHours":17.577404894764808,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:23","end":"17:48","startHours":17.37740489476481,"endHours":17.802624596678136,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:08","end":"18:53","startHours":17.12740489476481,"endHours":18.87740489476481,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:37","startHours":23.934592710274217,"endHours":24.614944233335542,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:10","end":"08:27","startHours":7.17213204884495,"endHours":8.447791154584932,"quality":"auspicious"},{"name":"Roga","start":"08:27","end":"09:43","startHours":8.447791154584932,"endHours":9.723450260324913,"quality":"inauspicious"},{"name":"Udveg","start":"09:43","end":"11:00","startHours":9.723450260324913,"endHours":10.999109366064896,"quality":"inauspicious"},{"name":"Chala","start":"11:00","end":"12:16","startHours":10.999109366064896,"endHours":12.27476847180488,"quality":"neutral"},{"name":"Labha","start":"12:16","end":"13:33","startHours":12.27476847180488,"endHours":13.55042757754486,"quality":"auspicious"},{"name":"Amṛta","start":"13:33","end":"14:50","startHours":13.55042757754486,"endHours":14.826086683284842,"quality":"auspicious"},{"name":"Kāla","start":"14:50","end":"16:06","startHours":14.826086683284842,"endHours":16.101745789024825,"quality":"inauspicious"},{"name":"Śubha","start":"16:06","end":"17:23","startHours":16.101745789024825,"endHours":17.37740489476481,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:23","end":"19:06","startHours":17.37740489476481,"endHours":19.101745789024825,"quality":"auspicious"},{"name":"Kāla","start":"19:06","end":"20:50","startHours":19.101745789024825,"endHours":20.826086683284842,"quality":"inauspicious"},{"name":"Śubha","start":"20:50","end":"22:33","startHours":20.826086683284842,"endHours":22.550427577544863,"quality":"auspicious"},{"name":"Roga","start":"22:33","end":"00:16","startHours":22.550427577544863,"endHours":24.27476847180488,"quality":"inauspicious"},{"name":"Udveg","start":"00:16","end":"02:00","startHours":24.27476847180488,"endHours":25.999109366064896,"quality":"inauspicious"},{"name":"Chala","start":"02:00","end":"03:43","startHours":25.999109366064896,"endHours":27.723450260324917,"quality":"neutral"},{"name":"Labha","start":"03:43","end":"05:27","startHours":27.723450260324917,"endHours":29.447791154584934,"quality":"auspicious"},{"name":"Amṛta","start":"05:27","end":"07:10","startHours":29.447791154584934,"endHours":31.17213204884495,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:10","end":"08:10","startHours":7.17213204884495,"endHours":8.17213204884495,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:10","end":"09:10","startHours":8.17213204884495,"endHours":9.17213204884495,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:10","end":"10:10","startHours":9.17213204884495,"endHours":10.17213204884495,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:10","end":"11:10","startHours":10.17213204884495,"endHours":11.17213204884495,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:10","end":"12:10","startHours":11.17213204884495,"endHours":12.17213204884495,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:10","end":"13:10","startHours":12.17213204884495,"endHours":13.17213204884495,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:10","end":"14:10","startHours":13.17213204884495,"endHours":14.17213204884495,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:10","end":"15:10","startHours":14.17213204884495,"endHours":15.17213204884495,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:10","end":"16:10","startHours":15.17213204884495,"endHours":16.17213204884495,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:10","end":"17:10","startHours":16.17213204884495,"endHours":17.17213204884495,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:10","end":"18:10","startHours":17.17213204884495,"endHours":18.17213204884495,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:10","end":"19:10","startHours":18.17213204884495,"endHours":19.17213204884495,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:10","end":"20:10","startHours":19.17213204884495,"endHours":20.17213204884495,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:10","end":"21:10","startHours":20.17213204884495,"endHours":21.17213204884495,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:10","end":"22:10","startHours":21.17213204884495,"endHours":22.17213204884495,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:10","end":"23:10","startHours":22.17213204884495,"endHours":23.17213204884495,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:10","end":"00:10","startHours":23.17213204884495,"endHours":24.17213204884495,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:10","end":"01:10","startHours":24.17213204884495,"endHours":25.17213204884495,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:10","end":"02:10","startHours":25.17213204884495,"endHours":26.17213204884495,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:10","end":"03:10","startHours":26.17213204884495,"endHours":27.17213204884495,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:10","end":"04:10","startHours":27.17213204884495,"endHours":28.17213204884495,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:10","end":"05:10","startHours":28.17213204884495,"endHours":29.17213204884495,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:10","end":"06:10","startHours":29.17213204884495,"endHours":30.17213204884495,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:10","end":"07:10","startHours":30.17213204884495,"endHours":31.17213204884495,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"West","rahuVasa":"North-West","anandadiYoga":{"name":"Sushira","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":-23.430673410056524,"eotMinutes":0.4434916917071845,"ayanamsa":25.2636}},"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 Saptamī · Vikram 2157 Śrīmukha · Śaka 2022 Raudra"},"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 23, 2100 CE · Ṛṣikeśa · Vidhyamitra","description":"December 23, 2100 CE for Ṛṣikeśa: Kṛṣṇa Saptamī, sūryodaya 07:10, sūryāsta 17:23.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2100-12-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2100-12-23","sa":"https://sa.vidhyamitra.com/city/rishikesh/2100-12-23","hi":"https://hi.vidhyamitra.com/city/rishikesh/2100-12-23","x-default":"https://vidhyamitra.com/city/rishikesh/2100-12-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T23:58:50.075Z","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":"2026-05-31T23:58:50.075Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T23:58:50.075Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}