{"id":"vidhyamitra:city-day:rishikesh:-3101-02-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/-3101-02-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"-3101-02-20","date_display":"February 20, 3102 BCE","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":-3101,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":588467.770833,"kali_year":1,"ahargana":2.2708,"sun":{"sidereal_longitude":4.4985,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":36.1416,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":31.6431,"elapsed_within_tithi_degrees":7.6431},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":36.1416,"elapsed_within_degrees":9.4749},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":40.6401},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":-3101,"month":2,"day":20,"hour":6,"minute":30,"calendar":"julian"},"julian_day":588467.770833,"ahargana":2.2708,"kali_year":1,"ayanamsa_lahiri":-47.4027,"grahas":{"sun":{"sidereal_longitude":4.4985,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":36.1416,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false,"latitude":-2.6599},"mars":{"sidereal_longitude":7.1529,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":2.1,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":2.0178,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":3.9067,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":353.0599,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":179.8797,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":359.8797,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","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":-3101,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":588467.770833,"kali_year":1,"ahargana":2.2708,"sun":{"sidereal_longitude":4.4985,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":36.1416,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":31.6431,"elapsed_within_tithi_degrees":7.6431},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":36.1416,"elapsed_within_degrees":9.4749},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":40.6401},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.66,"elongation":31.643},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.66,"opposition_distance":148.357}},"eclipse_window_40days":[{"offset_days":13,"type":"lunar","occurs":true,"moon_latitude":1.238,"opposition_distance":1.931}]},"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":"07:05","sunsetLocal":"17:58","solarNoonLocal":"12:31","dayLengthHours":10.88443623830006,"dayLengthDisplay":"10 Hours 53 Mins 04 Secs","nightLengthDisplay":"13 Hours 06 Mins 56 Secs","moonriseLocal":"08:45","moonsetLocal":"20:30","rahuKala":{"name":"Rāhu Kāla","start":"16:36","end":"17:58","startHours":16.601879340107892,"endHours":17.9624338698954,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:31","end":"13:53","startHours":12.520215750745368,"endHours":13.880770280532877,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:14","end":"16:36","startHours":15.241324810320384,"endHours":16.601879340107892,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:37","end":"09:59","startHours":9.61769942053202,"endHours":9.98051396180869,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:32","end":"07:49","startHours":7.531515808191175,"endHours":7.8217674412125096,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:53","startHours":12.157401209468702,"endHours":12.883030292022038,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:38","end":"06:21","startHours":5.626739466488665,"endHours":6.352368549042002,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:10","end":"07:05","startHours":6.170961278403668,"endHours":7.0779976315953395,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:20","end":"15:04","startHours":14.334288457128713,"endHours":15.05991753968205,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:46","end":"18:10","startHours":17.7624338698954,"endHours":18.1624338698954,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:58","end":"18:25","startHours":17.9624338698954,"endHours":18.415952046491235,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:43","end":"19:28","startHours":17.7124338698954,"endHours":19.4624338698954,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:53","startHours":24.157401209468702,"endHours":24.883030292022042,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"07:05","end":"08:26","startHours":7.0779976315953395,"endHours":8.438552161382846,"quality":"inauspicious"},{"name":"Chala","start":"08:26","end":"09:48","startHours":8.438552161382846,"endHours":9.799106691170355,"quality":"neutral"},{"name":"Labha","start":"09:48","end":"11:10","startHours":9.799106691170355,"endHours":11.159661220957862,"quality":"auspicious"},{"name":"Amṛta","start":"11:10","end":"12:31","startHours":11.159661220957862,"endHours":12.520215750745368,"quality":"auspicious"},{"name":"Kāla","start":"12:31","end":"13:53","startHours":12.520215750745368,"endHours":13.880770280532877,"quality":"inauspicious"},{"name":"Śubha","start":"13:53","end":"15:14","startHours":13.880770280532877,"endHours":15.241324810320384,"quality":"auspicious"},{"name":"Roga","start":"15:14","end":"16:36","startHours":15.241324810320384,"endHours":16.601879340107892,"quality":"inauspicious"},{"name":"Udveg","start":"16:36","end":"17:58","startHours":16.601879340107892,"endHours":17.9624338698954,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:58","end":"19:36","startHours":17.9624338698954,"endHours":19.601879340107892,"quality":"auspicious"},{"name":"Roga","start":"19:36","end":"21:14","startHours":19.601879340107892,"endHours":21.241324810320386,"quality":"inauspicious"},{"name":"Udveg","start":"21:14","end":"22:53","startHours":21.241324810320386,"endHours":22.88077028053288,"quality":"inauspicious"},{"name":"Chala","start":"22:53","end":"00:31","startHours":22.88077028053288,"endHours":24.52021575074537,"quality":"neutral"},{"name":"Labha","start":"00:31","end":"02:10","startHours":24.52021575074537,"endHours":26.15966122095786,"quality":"auspicious"},{"name":"Amṛta","start":"02:10","end":"03:48","startHours":26.15966122095786,"endHours":27.799106691170355,"quality":"auspicious"},{"name":"Kāla","start":"03:48","end":"05:26","startHours":27.799106691170355,"endHours":29.438552161382844,"quality":"inauspicious"},{"name":"Śubha","start":"05:26","end":"07:05","startHours":29.438552161382844,"endHours":31.077997631595338,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:05","end":"08:05","startHours":7.0779976315953395,"endHours":8.07799763159534,"planetary_lord":"Sun"},{"name":"Hora 2","start":"08:05","end":"09:05","startHours":8.07799763159534,"endHours":9.07799763159534,"planetary_lord":"Mars"},{"name":"Hora 3","start":"09:05","end":"10:05","startHours":9.07799763159534,"endHours":10.07799763159534,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"10:05","end":"11:05","startHours":10.07799763159534,"endHours":11.07799763159534,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"11:05","end":"12:05","startHours":11.07799763159534,"endHours":12.07799763159534,"planetary_lord":"Moon"},{"name":"Hora 6","start":"12:05","end":"13:05","startHours":12.07799763159534,"endHours":13.07799763159534,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"13:05","end":"14:05","startHours":13.07799763159534,"endHours":14.07799763159534,"planetary_lord":"Venus"},{"name":"Hora 8","start":"14:05","end":"15:05","startHours":14.07799763159534,"endHours":15.07799763159534,"planetary_lord":"Sun"},{"name":"Hora 9","start":"15:05","end":"16:05","startHours":15.07799763159534,"endHours":16.077997631595338,"planetary_lord":"Mars"},{"name":"Hora 10","start":"16:05","end":"17:05","startHours":16.077997631595338,"endHours":17.077997631595338,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"17:05","end":"18:05","startHours":17.077997631595338,"endHours":18.077997631595338,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"18:05","end":"19:05","startHours":18.077997631595338,"endHours":19.077997631595338,"planetary_lord":"Moon"},{"name":"Hora 13","start":"19:05","end":"20:05","startHours":19.077997631595338,"endHours":20.077997631595338,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"20:05","end":"21:05","startHours":20.077997631595338,"endHours":21.077997631595338,"planetary_lord":"Venus"},{"name":"Hora 15","start":"21:05","end":"22:05","startHours":21.077997631595338,"endHours":22.077997631595338,"planetary_lord":"Sun"},{"name":"Hora 16","start":"22:05","end":"23:05","startHours":22.077997631595338,"endHours":23.077997631595338,"planetary_lord":"Mars"},{"name":"Hora 17","start":"23:05","end":"00:05","startHours":23.077997631595338,"endHours":24.077997631595338,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"00:05","end":"01:05","startHours":24.077997631595338,"endHours":25.077997631595338,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"01:05","end":"02:05","startHours":25.077997631595338,"endHours":26.077997631595338,"planetary_lord":"Moon"},{"name":"Hora 20","start":"02:05","end":"03:05","startHours":26.077997631595338,"endHours":27.077997631595338,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"03:05","end":"04:05","startHours":27.077997631595338,"endHours":28.077997631595338,"planetary_lord":"Venus"},{"name":"Hora 22","start":"04:05","end":"05:05","startHours":28.077997631595338,"endHours":29.077997631595338,"planetary_lord":"Sun"},{"name":"Hora 23","start":"05:05","end":"06:05","startHours":29.077997631595338,"endHours":30.077997631595338,"planetary_lord":"Mars"},{"name":"Hora 24","start":"06:05","end":"07:05","startHours":30.077997631595338,"endHours":31.077997631595338,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"drikRitu":"undefined (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-15.70986192204488,"eotMinutes":-14.28334504472219,"ayanamsa":-47.4027}},"calendars":{"vikram_samvat":-3044,"saka_samvat":-3179,"bengali_samvat":-3694,"malayalam_era":-3925,"nanakshahi_year":-4570,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Tṛtīyā · Vikram -3044 undefined · Śaka -3179 undefined"},"festivals":[{"id":"akshaya-tritiya","name":"Akṣaya Tṛtīyā","name_sanskrit":"अक्षय तृतीया","tradition":"Pan-Hindu","significance":"\"Inexhaustible third\"; auspicious for any new venture.","vrata":false,"detection":{"tithi_number":3,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":1},{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"parashurama-jayanti","name":"Paraśurāma Jayantī","name_sanskrit":"परशुराम जयन्ती","tradition":"Vaishnava","associated_deity":"Paraśurāma (6th daśāvatāra of Krishna)","deity_avatara_index":16,"significance":"Paraśurāma's manifestation; ciranjīvi-pratiṣṭhā. Coincides with Akṣaya Tṛtīyā.","vrata":true,"detection":{"tithi_number":3,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":2,"sources":["Bhāgavata 9.15-16"]},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"validity":{"eternal":true,"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 February 20, 3102 BCE · Ṛṣikeśa · Vidhyamitra","description":"February 20, 3102 BCE for Ṛṣikeśa: Śukla Tṛtīyā, sūryodaya 07:05, sūryāsta 17:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/-3101-02-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/-3101-02-20","sa":"https://sa.vidhyamitra.com/city/rishikesh/-3101-02-20","hi":"https://hi.vidhyamitra.com/city/rishikesh/-3101-02-20","x-default":"https://vidhyamitra.com/city/rishikesh/-3101-02-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T12:55:21.618Z","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":"2026-05-14T12:55:21.618Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T12:55:21.618Z","pillar_versions":{"BOB-History":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}