{"id":"vidhyamitra:city-day:rishikesh:1817-01-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1817-01-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1817-01-20","date_display":"January 20, 1817 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":1817,"month":1,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2384724.770833,"kali_year":4918,"ahargana":1796259.2708,"sun":{"sidereal_longitude":278.7852,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":310.7092,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":31.924,"elapsed_within_tithi_degrees":7.924},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":310.7092,"elapsed_within_degrees":4.0426},"yoga":{"number":18,"name":"Varīyān","sum_longitude":229.4945},"karana":{"half_tithi_index":5,"name":"Gara"},"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":1817,"month":1,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2384724.770833,"ahargana":1796259.2708,"kali_year":4918,"ayanamsa_lahiri":21.2974,"grahas":{"sun":{"sidereal_longitude":278.40983400000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":308.154934,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false,"latitude":-4.484},"mars":{"sidereal_longitude":248.15123399999993,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":298.447234,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":225.58823400000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":321.8245340000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":303.85763399999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":45.5396,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":225.5396,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","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":1817,"month":1,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2384724.770833,"kali_year":4918,"ahargana":1796259.2708,"sun":{"sidereal_longitude":278.7852,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":310.7092,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":31.924,"elapsed_within_tithi_degrees":7.924},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":310.7092,"elapsed_within_degrees":4.0426},"yoga":{"number":18,"name":"Varīyān","sum_longitude":229.4945},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.484,"elongation":31.924},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.484,"opposition_distance":148.076}},"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":"07:13","sunsetLocal":"17:43","solarNoonLocal":"12:28","dayLengthHours":10.497773549601117,"dayLengthDisplay":"10 Hours 29 Mins 52 Secs","nightLengthDisplay":"13 Hours 30 Mins 08 Secs","moonriseLocal":"08:52","moonsetLocal":"20:02","rahuKala":{"name":"Rāhu Kāla","start":"08:32","end":"09:50","startHours":8.528233307853402,"endHours":9.840455001553542,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:09","end":"12:28","startHours":11.152676695253682,"endHours":12.46489838895382,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:47","end":"15:05","startHours":13.777120082653962,"endHours":15.0893417763541,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:40","end":"10:01","startHours":9.665492109060189,"endHours":10.015417894046895,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:39","end":"07:56","startHours":7.653418845386643,"endHours":7.933359473376006,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:07","end":"12:49","startHours":12.114972603967118,"endHours":12.814824173940526,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:49","end":"06:31","startHours":5.816308474206447,"endHours":6.516160044179855,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:20","end":"07:13","startHours":6.341197151686503,"endHours":7.216011614153262,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:13","end":"14:55","startHours":14.214527313887341,"endHours":14.91437888386075,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:31","end":"17:55","startHours":17.51378516375438,"endHours":17.91378516375438,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:43","end":"18:09","startHours":17.71378516375438,"endHours":18.15119239498776,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:28","end":"19:13","startHours":17.46378516375438,"endHours":19.21378516375438,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:07","end":"00:49","startHours":24.114972603967118,"endHours":24.814824173940522,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:13","end":"08:32","startHours":7.216011614153262,"endHours":8.528233307853402,"quality":"auspicious"},{"name":"Kāla","start":"08:32","end":"09:50","startHours":8.528233307853402,"endHours":9.840455001553542,"quality":"inauspicious"},{"name":"Śubha","start":"09:50","end":"11:09","startHours":9.840455001553542,"endHours":11.152676695253682,"quality":"auspicious"},{"name":"Roga","start":"11:09","end":"12:28","startHours":11.152676695253682,"endHours":12.46489838895382,"quality":"inauspicious"},{"name":"Udveg","start":"12:28","end":"13:47","startHours":12.46489838895382,"endHours":13.777120082653962,"quality":"inauspicious"},{"name":"Chala","start":"13:47","end":"15:05","startHours":13.777120082653962,"endHours":15.0893417763541,"quality":"neutral"},{"name":"Labha","start":"15:05","end":"16:24","startHours":15.0893417763541,"endHours":16.40156347005424,"quality":"auspicious"},{"name":"Amṛta","start":"16:24","end":"17:43","startHours":16.40156347005424,"endHours":17.71378516375438,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:43","end":"19:24","startHours":17.71378516375438,"endHours":19.401563470054242,"quality":"neutral"},{"name":"Labha","start":"19:24","end":"21:05","startHours":19.401563470054242,"endHours":21.0893417763541,"quality":"auspicious"},{"name":"Amṛta","start":"21:05","end":"22:47","startHours":21.0893417763541,"endHours":22.777120082653962,"quality":"auspicious"},{"name":"Kāla","start":"22:47","end":"00:28","startHours":22.777120082653962,"endHours":24.46489838895382,"quality":"inauspicious"},{"name":"Śubha","start":"00:28","end":"02:09","startHours":24.46489838895382,"endHours":26.15267669525368,"quality":"auspicious"},{"name":"Roga","start":"02:09","end":"03:50","startHours":26.15267669525368,"endHours":27.840455001553543,"quality":"inauspicious"},{"name":"Udveg","start":"03:50","end":"05:32","startHours":27.840455001553543,"endHours":29.528233307853405,"quality":"inauspicious"},{"name":"Chala","start":"05:32","end":"07:13","startHours":29.528233307853405,"endHours":31.216011614153263,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:13","end":"08:13","startHours":7.216011614153262,"endHours":8.216011614153263,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:13","end":"09:13","startHours":8.216011614153263,"endHours":9.216011614153263,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:13","end":"10:13","startHours":9.216011614153263,"endHours":10.216011614153263,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:13","end":"11:13","startHours":10.216011614153263,"endHours":11.216011614153263,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:13","end":"12:13","startHours":11.216011614153263,"endHours":12.216011614153263,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:13","end":"13:13","startHours":12.216011614153263,"endHours":13.216011614153263,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:13","end":"14:13","startHours":13.216011614153263,"endHours":14.216011614153263,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:13","end":"15:13","startHours":14.216011614153263,"endHours":15.216011614153263,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:13","end":"16:13","startHours":15.216011614153263,"endHours":16.216011614153263,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:13","end":"17:13","startHours":16.216011614153263,"endHours":17.216011614153263,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:13","end":"18:13","startHours":17.216011614153263,"endHours":18.216011614153263,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:13","end":"19:13","startHours":18.216011614153263,"endHours":19.216011614153263,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:13","end":"20:13","startHours":19.216011614153263,"endHours":20.216011614153263,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:13","end":"21:13","startHours":20.216011614153263,"endHours":21.216011614153263,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:13","end":"22:13","startHours":21.216011614153263,"endHours":22.216011614153263,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:13","end":"23:13","startHours":22.216011614153263,"endHours":23.216011614153263,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:13","end":"00:13","startHours":23.216011614153263,"endHours":24.216011614153263,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:13","end":"01:13","startHours":24.216011614153263,"endHours":25.216011614153263,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:13","end":"02:13","startHours":25.216011614153263,"endHours":26.216011614153263,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:13","end":"03:13","startHours":26.216011614153263,"endHours":27.216011614153263,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:13","end":"04:13","startHours":27.216011614153263,"endHours":28.216011614153263,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:13","end":"05:13","startHours":28.216011614153263,"endHours":29.216011614153263,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:13","end":"06:13","startHours":29.216011614153263,"endHours":30.216011614153263,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:13","end":"07:13","startHours":30.216011614153263,"endHours":31.216011614153263,"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","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-20.209760386690515,"eotMinutes":-10.9643033372293,"ayanamsa":21.2974}},"calendars":{"vikram_samvat":1874,"vikram_samvatsara":"Vikṛti","saka_samvat":1739,"saka_samvatsara":"Īśvara","bengali_samvat":1224,"malayalam_era":993,"nanakshahi_year":348,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Tṛtīyā · Vikram 1874 Vikṛti · Śaka 1739 Īśvara"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7, 6.34-35.","step_count":5,"url":"/walk/chandra-walk","steps":[{"label":"BG 6.5","url":"/bhagavad-gita/6/5","purpose":"Lift the self by the Self; begin the walk with inner responsibility."},{"label":"BG 6.6","url":"/bhagavad-gita/6/6","purpose":"See the mind as friend when mastered and enemy when unmastered."},{"label":"BG 6.7","url":"/bhagavad-gita/6/7","purpose":"Stabilize the conquered mind in heat/cold, honor/dishonor, pleasure/pain."},{"label":"BG 6.34","url":"/bhagavad-gita/6/34","purpose":"Name the restless mind honestly before trying to discipline it."},{"label":"BG 6.35","url":"/bhagavad-gita/6/35","purpose":"Complete with abhyāsa and vairāgya: practice and detachment."}]},"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 January 20, 1817 CE · Ṛṣikeśa · Vidhyamitra","description":"January 20, 1817 CE for Ṛṣikeśa: Śukla Tṛtīyā, sūryodaya 07:13, sūryāsta 17:43.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1817-01-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1817-01-20","sa":"https://sa.vidhyamitra.com/city/rishikesh/1817-01-20","hi":"https://hi.vidhyamitra.com/city/rishikesh/1817-01-20","x-default":"https://vidhyamitra.com/city/rishikesh/1817-01-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-27T11:46:46.837Z","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":"2026-06-27T11:46:46.837Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-27T11:46:46.837Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no founder-city is the universal center.","purna_chain":["Goloka/Vraja Rādhā-Krishna","Vaikuṇṭha Lakṣmī-Nārāyaṇa","Mahāviṣṇu/Kāraṇodakaśāyī Viṣṇu","Garbhodakaśāyī Viṣṇu","Brahmā","Kṣīrodaka Paramātmā/Antaryāmī (Kṣīrodakaśāyī Viṣṇu)","Bhūmi","reader's own kṣetra anywhere on Bhūmi","exact reading kṣetra","Divyāṁśa-bhakta","chitta/vāṇī/aṅgulī","keyboard-silicon-pathways","Vidhyāmitra substrate","reader/seer","Krishna"],"antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}