{"id":"vidhyamitra:city-day:rishikesh:1881-03-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1881-03-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1881-03-13","date_display":"March 13, 1881 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":1881,"month":3,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2408152.770833,"kali_year":4982,"ahargana":1819687.2708,"sun":{"sidereal_longitude":330.8815,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":116.3402,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":145.4588,"elapsed_within_tithi_degrees":1.4588},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":116.3402,"elapsed_within_degrees":9.6736},"yoga":{"number":7,"name":"Sukarma","sum_longitude":87.2217},"karana":{"half_tithi_index":24,"name":"Kaulava"},"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":1881,"month":3,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2408152.770833,"ahargana":1819687.2708,"kali_year":4982,"ayanamsa_lahiri":22.1934,"grahas":{"sun":{"sidereal_longitude":330.429313,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":117.10301299999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false,"latitude":-3.5509},"mars":{"sidereal_longitude":293.00961299999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":328.949513,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":2.2303130000000237,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":16.89061300000003,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":5.825612999999976,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":244.2114,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":64.2114,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":1881,"month":3,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2408152.770833,"kali_year":4982,"ahargana":1819687.2708,"sun":{"sidereal_longitude":330.8815,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":116.3402,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":145.4588,"elapsed_within_tithi_degrees":1.4588},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":116.3402,"elapsed_within_degrees":9.6736},"yoga":{"number":7,"name":"Sukarma","sum_longitude":87.2217},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.551,"elongation":145.459},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.551,"opposition_distance":34.541}},"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":"06:30","sunsetLocal":"18:24","solarNoonLocal":"12:27","dayLengthHours":11.902186606947671,"dayLengthDisplay":"11 Hours 54 Mins 08 Secs","nightLengthDisplay":"12 Hours 05 Mins 52 Secs","moonriseLocal":"15:35","moonsetLocal":"04:52","rahuKala":{"name":"Rāhu Kāla","start":"16:55","end":"18:24","startHours":16.915778643085524,"endHours":18.403551968953984,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:27","end":"13:56","startHours":12.452458665480147,"endHours":13.940231991348607,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:26","end":"16:55","startHours":15.428005317217066,"endHours":16.915778643085524,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:17","end":"09:41","startHours":9.278542236960769,"endHours":9.675281790525691,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:00","end":"07:19","startHours":6.997289803962466,"endHours":7.3146814468144035,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:51","startHours":12.055719111915225,"endHours":12.84919821904507,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:55","end":"05:42","startHours":4.914407147746624,"endHours":5.707886254876468,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:31","end":"06:30","startHours":5.509516478094007,"endHours":6.501365362006313,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:14","startHours":14.43615643330476,"endHours":15.229635540434604,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:12","end":"18:36","startHours":18.203551968953985,"endHours":18.603551968953983,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:24","end":"18:54","startHours":18.403551968953984,"endHours":18.899476410910136,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:09","end":"19:54","startHours":18.153551968953984,"endHours":19.903551968953984,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:51","startHours":24.055719111915224,"endHours":24.84919821904507,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:30","end":"07:59","startHours":6.501365362006313,"endHours":7.989138687874772,"quality":"inauspicious"},{"name":"Chala","start":"07:59","end":"09:29","startHours":7.989138687874772,"endHours":9.476912013743231,"quality":"neutral"},{"name":"Labha","start":"09:29","end":"10:58","startHours":9.476912013743231,"endHours":10.96468533961169,"quality":"auspicious"},{"name":"Amṛta","start":"10:58","end":"12:27","startHours":10.96468533961169,"endHours":12.452458665480147,"quality":"auspicious"},{"name":"Kāla","start":"12:27","end":"13:56","startHours":12.452458665480147,"endHours":13.940231991348607,"quality":"inauspicious"},{"name":"Śubha","start":"13:56","end":"15:26","startHours":13.940231991348607,"endHours":15.428005317217066,"quality":"auspicious"},{"name":"Roga","start":"15:26","end":"16:55","startHours":15.428005317217066,"endHours":16.915778643085524,"quality":"inauspicious"},{"name":"Udveg","start":"16:55","end":"18:24","startHours":16.915778643085524,"endHours":18.403551968953984,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:24","end":"19:55","startHours":18.403551968953984,"endHours":19.915778643085524,"quality":"auspicious"},{"name":"Roga","start":"19:55","end":"21:26","startHours":19.915778643085524,"endHours":21.428005317217067,"quality":"inauspicious"},{"name":"Udveg","start":"21:26","end":"22:56","startHours":21.428005317217067,"endHours":22.940231991348607,"quality":"inauspicious"},{"name":"Chala","start":"22:56","end":"00:27","startHours":22.940231991348607,"endHours":24.452458665480147,"quality":"neutral"},{"name":"Labha","start":"00:27","end":"01:58","startHours":24.452458665480147,"endHours":25.96468533961169,"quality":"auspicious"},{"name":"Amṛta","start":"01:58","end":"03:29","startHours":25.96468533961169,"endHours":27.47691201374323,"quality":"auspicious"},{"name":"Kāla","start":"03:29","end":"04:59","startHours":27.47691201374323,"endHours":28.98913868787477,"quality":"inauspicious"},{"name":"Śubha","start":"04:59","end":"06:30","startHours":28.98913868787477,"endHours":30.50136536200631,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:30","end":"07:30","startHours":6.501365362006313,"endHours":7.501365362006313,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:30","end":"08:30","startHours":7.501365362006313,"endHours":8.501365362006313,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:30","end":"09:30","startHours":8.501365362006313,"endHours":9.501365362006313,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:30","end":"10:30","startHours":9.501365362006313,"endHours":10.501365362006313,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:30","end":"11:30","startHours":10.501365362006313,"endHours":11.501365362006313,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:30","end":"12:30","startHours":11.501365362006313,"endHours":12.501365362006313,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:30","end":"13:30","startHours":12.501365362006313,"endHours":13.501365362006313,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:30","end":"14:30","startHours":13.501365362006313,"endHours":14.501365362006313,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:30","end":"15:30","startHours":14.501365362006313,"endHours":15.501365362006313,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:30","end":"16:30","startHours":15.501365362006313,"endHours":16.50136536200631,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:30","end":"17:30","startHours":16.50136536200631,"endHours":17.50136536200631,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:30","end":"18:30","startHours":17.50136536200631,"endHours":18.50136536200631,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:30","end":"19:30","startHours":18.50136536200631,"endHours":19.50136536200631,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:30","end":"20:30","startHours":19.50136536200631,"endHours":20.50136536200631,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:30","end":"21:30","startHours":20.50136536200631,"endHours":21.50136536200631,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:30","end":"22:30","startHours":21.50136536200631,"endHours":22.50136536200631,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:30","end":"23:30","startHours":22.50136536200631,"endHours":23.50136536200631,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:30","end":"00:30","startHours":23.50136536200631,"endHours":24.50136536200631,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:30","end":"01:30","startHours":24.50136536200631,"endHours":25.50136536200631,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:30","end":"02:30","startHours":25.50136536200631,"endHours":26.50136536200631,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:30","end":"03:30","startHours":26.50136536200631,"endHours":27.50136536200631,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:30","end":"04:30","startHours":27.50136536200631,"endHours":28.50136536200631,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:30","end":"05:30","startHours":28.50136536200631,"endHours":29.50136536200631,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:30","end":"06:30","startHours":29.50136536200631,"endHours":30.50136536200631,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-2.927359207194637,"eotMinutes":-10.217919928808794,"ayanamsa":22.1934}},"calendars":{"vikram_samvat":1938,"vikram_samvatsara":"Jaya","saka_samvat":1803,"saka_samvatsara":"Vṛṣa","bengali_samvat":1288,"malayalam_era":1057,"nanakshahi_year":412,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Phālguna","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Trayodaśī · Vikram 1938 Jaya · Śaka 1803 Vṛṣa"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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":[]},"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 March 13, 1881 CE · Ṛṣikeśa · Vidhyamitra","description":"March 13, 1881 CE for Ṛṣikeśa: Śukla Trayodaśī, sūryodaya 06:30, sūryāsta 18:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1881-03-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1881-03-13","sa":"https://sa.vidhyamitra.com/city/rishikesh/1881-03-13","hi":"https://hi.vidhyamitra.com/city/rishikesh/1881-03-13","x-default":"https://vidhyamitra.com/city/rishikesh/1881-03-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T16:11:13.948Z","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":"2026-05-31T16:11:13.948Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T16:11:13.948Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}