{"id":"vidhyamitra:city-day:rishikesh:1871-08-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1871-08-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1871-08-21","date_display":"August 21, 1871 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":1871,"month":8,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2404660.770833,"kali_year":4973,"ahargana":1816195.2708,"sun":{"sidereal_longitude":125.1157,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":184.3073,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":59.1916,"elapsed_within_tithi_degrees":11.1916},"nakshatra":{"number":14,"name":"Citrā","pada":4,"moon_longitude":184.3073,"elapsed_within_degrees":10.974},"yoga":{"number":24,"name":"Śukla","sum_longitude":309.423},"karana":{"half_tithi_index":9,"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":1871,"month":8,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2404660.770833,"ahargana":1816195.2708,"kali_year":4973,"ayanamsa_lahiri":22.0599,"grahas":{"sun":{"sidereal_longitude":125.45403299999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":183.92283300000008,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false,"latitude":4.0752},"mars":{"sidereal_longitude":194.887333,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":154.59463299999993,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":88.90183300000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"venus":{"sidereal_longitude":166.531433,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":252.56893300000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":69.2344,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":249.2344,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"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":1871,"month":8,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2404660.770833,"kali_year":4973,"ahargana":1816195.2708,"sun":{"sidereal_longitude":125.1157,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":184.3073,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":59.1916,"elapsed_within_tithi_degrees":11.1916},"nakshatra":{"number":14,"name":"Citrā","pada":4,"moon_longitude":184.3073,"elapsed_within_degrees":10.974},"yoga":{"number":24,"name":"Śukla","sum_longitude":309.423},"karana":{"half_tithi_index":9,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.075,"elongation":59.192},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.075,"opposition_distance":120.808}},"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":"05:47","sunsetLocal":"18:53","solarNoonLocal":"12:20","dayLengthHours":13.103061141291334,"dayLengthDisplay":"13 Hours 06 Mins 11 Secs","nightLengthDisplay":"10 Hours 53 Mins 49 Secs","moonriseLocal":"10:34","moonsetLocal":"21:53","rahuKala":{"name":"Rāhu Kāla","start":"07:25","end":"09:03","startHours":7.41514362728233,"endHours":9.053026269943746,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:41","end":"12:20","startHours":10.690908912605163,"endHours":12.32879155526658,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:58","end":"15:36","startHours":13.966674197927997,"endHours":15.604556840589414,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:50","end":"09:16","startHours":8.83464191758889,"endHours":9.271410622298601,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:19","end":"06:40","startHours":6.323221865508052,"endHours":6.672636829275821,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:46","startHours":11.892022850556868,"endHours":12.765560259976292,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:02","end":"04:54","startHours":4.030186165782069,"endHours":4.90372357520149,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:41","end":"05:47","startHours":4.685339222846635,"endHours":5.777260984620913,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:23","startHours":14.512635078815135,"endHours":15.386172488234557,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:41","end":"19:05","startHours":18.680322125912248,"endHours":19.080322125912247,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:53","end":"19:26","startHours":18.880322125912247,"endHours":19.426283006799387,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:38","end":"20:23","startHours":18.630322125912247,"endHours":20.380322125912247,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:46","startHours":23.89202285055687,"endHours":24.76556025997629,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:47","end":"07:25","startHours":5.777260984620913,"endHours":7.41514362728233,"quality":"auspicious"},{"name":"Kāla","start":"07:25","end":"09:03","startHours":7.41514362728233,"endHours":9.053026269943746,"quality":"inauspicious"},{"name":"Śubha","start":"09:03","end":"10:41","startHours":9.053026269943746,"endHours":10.690908912605163,"quality":"auspicious"},{"name":"Roga","start":"10:41","end":"12:20","startHours":10.690908912605163,"endHours":12.32879155526658,"quality":"inauspicious"},{"name":"Udveg","start":"12:20","end":"13:58","startHours":12.32879155526658,"endHours":13.966674197927997,"quality":"inauspicious"},{"name":"Chala","start":"13:58","end":"15:36","startHours":13.966674197927997,"endHours":15.604556840589414,"quality":"neutral"},{"name":"Labha","start":"15:36","end":"17:15","startHours":15.604556840589414,"endHours":17.24243948325083,"quality":"auspicious"},{"name":"Amṛta","start":"17:15","end":"18:53","startHours":17.24243948325083,"endHours":18.880322125912247,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:53","end":"20:15","startHours":18.880322125912247,"endHours":20.24243948325083,"quality":"neutral"},{"name":"Labha","start":"20:15","end":"21:36","startHours":20.24243948325083,"endHours":21.604556840589414,"quality":"auspicious"},{"name":"Amṛta","start":"21:36","end":"22:58","startHours":21.604556840589414,"endHours":22.966674197927997,"quality":"auspicious"},{"name":"Kāla","start":"22:58","end":"00:20","startHours":22.966674197927997,"endHours":24.32879155526658,"quality":"inauspicious"},{"name":"Śubha","start":"00:20","end":"01:41","startHours":24.32879155526658,"endHours":25.690908912605163,"quality":"auspicious"},{"name":"Roga","start":"01:41","end":"03:03","startHours":25.690908912605163,"endHours":27.053026269943746,"quality":"inauspicious"},{"name":"Udveg","start":"03:03","end":"04:25","startHours":27.053026269943746,"endHours":28.41514362728233,"quality":"inauspicious"},{"name":"Chala","start":"04:25","end":"05:47","startHours":28.41514362728233,"endHours":29.777260984620913,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:47","end":"06:47","startHours":5.777260984620913,"endHours":6.777260984620913,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:47","end":"07:47","startHours":6.777260984620913,"endHours":7.777260984620913,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:47","end":"08:47","startHours":7.777260984620913,"endHours":8.777260984620913,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:47","end":"09:47","startHours":8.777260984620913,"endHours":9.777260984620913,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:47","end":"10:47","startHours":9.777260984620913,"endHours":10.777260984620913,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:47","end":"11:47","startHours":10.777260984620913,"endHours":11.777260984620913,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:47","end":"12:47","startHours":11.777260984620913,"endHours":12.777260984620913,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:47","end":"13:47","startHours":12.777260984620913,"endHours":13.777260984620913,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:47","end":"14:47","startHours":13.777260984620913,"endHours":14.777260984620913,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:47","end":"15:47","startHours":14.777260984620913,"endHours":15.777260984620913,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:47","end":"16:47","startHours":15.777260984620913,"endHours":16.777260984620913,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:47","end":"17:47","startHours":16.777260984620913,"endHours":17.777260984620913,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:47","end":"18:47","startHours":17.777260984620913,"endHours":18.777260984620913,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:47","end":"19:47","startHours":18.777260984620913,"endHours":19.777260984620913,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:47","end":"20:47","startHours":19.777260984620913,"endHours":20.777260984620913,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:47","end":"21:47","startHours":20.777260984620913,"endHours":21.777260984620913,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:47","end":"22:47","startHours":21.777260984620913,"endHours":22.777260984620913,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:47","end":"23:47","startHours":22.777260984620913,"endHours":23.777260984620913,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:47","end":"00:47","startHours":23.777260984620913,"endHours":24.777260984620913,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:47","end":"01:47","startHours":24.777260984620913,"endHours":25.777260984620913,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:47","end":"02:47","startHours":25.777260984620913,"endHours":26.777260984620913,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:47","end":"03:47","startHours":26.777260984620913,"endHours":27.777260984620913,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:47","end":"04:47","startHours":27.777260984620913,"endHours":28.777260984620913,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:47","end":"05:47","startHours":28.777260984620913,"endHours":29.777260984620913,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":12.33457346542599,"eotMinutes":-2.7978933159948465,"ayanamsa":22.0599}},"calendars":{"vikram_samvat":1928,"vikram_samvatsara":"Tāraṇa","saka_samvat":1793,"saka_samvatsara":"Prajāpati","bengali_samvat":1278,"malayalam_era":1047,"nanakshahi_year":402,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada (Adhika) Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":true,"lunar_month_purnimanta_is_adhika":true,"lunar_month_amanta_is_adhika":true,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada (Adhika) Śukla Pañcamī · Vikram 1928 Tāraṇa · Śaka 1793 Prajāpati"},"festivals":[],"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 August 21, 1871 CE · Ṛṣikeśa · Vidhyamitra","description":"August 21, 1871 CE for Ṛṣikeśa: Śukla Pañcamī, sūryodaya 05:47, sūryāsta 18:53.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1871-08-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1871-08-21","sa":"https://sa.vidhyamitra.com/city/rishikesh/1871-08-21","hi":"https://hi.vidhyamitra.com/city/rishikesh/1871-08-21","x-default":"https://vidhyamitra.com/city/rishikesh/1871-08-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:00:38.261Z","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":"2026-05-31T18:00:38.261Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:00:38.261Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}