{"id":"vidhyamitra:city-day:rishikesh:1999-08-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1999-08-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1999-08-21","date_display":"August 21, 1999 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":1999,"month":8,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451411.770833,"kali_year":5101,"ahargana":1862946.2708,"sun":{"sidereal_longitude":123.0827,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":234.2672,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":111.1846,"elapsed_within_tithi_degrees":3.1846},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":234.2672,"elapsed_within_degrees":7.6006},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":357.3499},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1999,"month":8,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2451411.770833,"ahargana":1862946.2708,"kali_year":5101,"ayanamsa_lahiri":23.8479,"grahas":{"sun":{"sidereal_longitude":123.721701,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":235.187501,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false,"latitude":3.8099},"mars":{"sidereal_longitude":208.42850099999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":106.923901,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":11.102600999999993,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":122.77120100000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":23.20620100000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":112.1414,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":292.1414,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1999,"month":8,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451411.770833,"kali_year":5101,"ahargana":1862946.2708,"sun":{"sidereal_longitude":123.0827,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":234.2672,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":111.1846,"elapsed_within_tithi_degrees":3.1846},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":234.2672,"elapsed_within_degrees":7.6006},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":357.3499},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.81,"elongation":111.185},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.81,"opposition_distance":68.815}},"eclipse_window_40days":[{"offset_days":6,"type":"lunar","occurs":true,"moon_latitude":-1.307,"opposition_distance":0.12}]},"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":13.101487442410837,"dayLengthDisplay":"13 Hours 06 Mins 05 Secs","nightLengthDisplay":"10 Hours 53 Mins 55 Secs","moonriseLocal":"14:39","moonsetLocal":"00:52","rahuKala":{"name":"Rāhu Kāla","start":"09:03","end":"10:41","startHours":9.05341969466387,"endHours":10.691105624965225,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:58","end":"15:36","startHours":13.966477485567934,"endHours":15.604163415869289,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:47","end":"07:25","startHours":5.7780478340611605,"endHours":7.415733764362515,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:50","end":"09:16","startHours":8.83506157062369,"endHours":9.27177781870405,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:19","end":"06:40","startHours":6.323943144161612,"endHours":6.673316142625901,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:46","startHours":11.892075307186218,"endHours":12.765507803346942,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:02","end":"04:54","startHours":4.0311828417397155,"endHours":4.904615337900438,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:41","end":"05:47","startHours":4.686257213860257,"endHours":5.7780478340611605,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:23","startHours":14.512372795668385,"endHours":15.385805291829108,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:41","end":"19:05","startHours":18.679535276472,"endHours":19.079535276471997,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:53","end":"19:26","startHours":18.879535276471998,"endHours":19.42543058657245,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:38","end":"20:23","startHours":18.629535276471998,"endHours":20.379535276471998,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:46","startHours":23.892075307186218,"endHours":24.765507803346942,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:47","end":"07:25","startHours":5.7780478340611605,"endHours":7.415733764362515,"quality":"inauspicious"},{"name":"Śubha","start":"07:25","end":"09:03","startHours":7.415733764362515,"endHours":9.05341969466387,"quality":"auspicious"},{"name":"Roga","start":"09:03","end":"10:41","startHours":9.05341969466387,"endHours":10.691105624965225,"quality":"inauspicious"},{"name":"Udveg","start":"10:41","end":"12:20","startHours":10.691105624965225,"endHours":12.32879155526658,"quality":"inauspicious"},{"name":"Chala","start":"12:20","end":"13:58","startHours":12.32879155526658,"endHours":13.966477485567934,"quality":"neutral"},{"name":"Labha","start":"13:58","end":"15:36","startHours":13.966477485567934,"endHours":15.604163415869289,"quality":"auspicious"},{"name":"Amṛta","start":"15:36","end":"17:15","startHours":15.604163415869289,"endHours":17.241849346170643,"quality":"auspicious"},{"name":"Kāla","start":"17:15","end":"18:53","startHours":17.241849346170643,"endHours":18.879535276471998,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:53","end":"20:15","startHours":18.879535276471998,"endHours":20.241849346170643,"quality":"auspicious"},{"name":"Amṛta","start":"20:15","end":"21:36","startHours":20.241849346170643,"endHours":21.604163415869287,"quality":"auspicious"},{"name":"Kāla","start":"21:36","end":"22:58","startHours":21.604163415869287,"endHours":22.966477485567935,"quality":"inauspicious"},{"name":"Śubha","start":"22:58","end":"00:20","startHours":22.966477485567935,"endHours":24.32879155526658,"quality":"auspicious"},{"name":"Roga","start":"00:20","end":"01:41","startHours":24.32879155526658,"endHours":25.691105624965225,"quality":"inauspicious"},{"name":"Udveg","start":"01:41","end":"03:03","startHours":25.691105624965225,"endHours":27.05341969466387,"quality":"inauspicious"},{"name":"Chala","start":"03:03","end":"04:25","startHours":27.05341969466387,"endHours":28.415733764362514,"quality":"neutral"},{"name":"Labha","start":"04:25","end":"05:47","startHours":28.415733764362514,"endHours":29.778047834061162,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:47","end":"06:47","startHours":5.7780478340611605,"endHours":6.7780478340611605,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:47","end":"07:47","startHours":6.7780478340611605,"endHours":7.7780478340611605,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:47","end":"08:47","startHours":7.7780478340611605,"endHours":8.77804783406116,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:47","end":"09:47","startHours":8.77804783406116,"endHours":9.77804783406116,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:47","end":"10:47","startHours":9.77804783406116,"endHours":10.77804783406116,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:47","end":"11:47","startHours":10.77804783406116,"endHours":11.77804783406116,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:47","end":"12:47","startHours":11.77804783406116,"endHours":12.77804783406116,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:47","end":"13:47","startHours":12.77804783406116,"endHours":13.77804783406116,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:47","end":"14:47","startHours":13.77804783406116,"endHours":14.77804783406116,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:47","end":"15:47","startHours":14.77804783406116,"endHours":15.77804783406116,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:47","end":"16:47","startHours":15.77804783406116,"endHours":16.778047834061162,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:47","end":"17:47","startHours":16.778047834061162,"endHours":17.778047834061162,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:47","end":"18:47","startHours":17.778047834061162,"endHours":18.778047834061162,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:47","end":"19:47","startHours":18.778047834061162,"endHours":19.778047834061162,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:47","end":"20:47","startHours":19.778047834061162,"endHours":20.778047834061162,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:47","end":"21:47","startHours":20.778047834061162,"endHours":21.778047834061162,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:47","end":"22:47","startHours":21.778047834061162,"endHours":22.778047834061162,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:47","end":"23:47","startHours":22.778047834061162,"endHours":23.778047834061162,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:47","end":"00:47","startHours":23.778047834061162,"endHours":24.778047834061162,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:47","end":"01:47","startHours":24.778047834061162,"endHours":25.778047834061162,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:47","end":"02:47","startHours":25.778047834061162,"endHours":26.778047834061162,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:47","end":"03:47","startHours":26.778047834061162,"endHours":27.778047834061162,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:47","end":"04:47","startHours":27.778047834061162,"endHours":28.778047834061162,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:47","end":"05:47","startHours":28.778047834061162,"endHours":29.778047834061162,"planetary_lord":"Mercury"}],"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","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":12.315450558200604,"eotMinutes":-2.7978933159948465,"ayanamsa":23.8479}},"calendars":{"vikram_samvat":2056,"vikram_samvatsara":"Nandana","saka_samvat":1921,"saka_samvatsara":"Pramāthi","bengali_samvat":1406,"malayalam_era":1175,"nanakshahi_year":530,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Śrāvaṇa","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Daśamī · Vikram 2056 Nandana · Śaka 1921 Pramāthi"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","relevance":0.5}]},"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, 1999 CE · Ṛṣikeśa · Vidhyamitra","description":"August 21, 1999 CE for Ṛṣikeśa: Śukla Daśamī, sūryodaya 05:47, sūryāsta 18:53.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1999-08-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1999-08-21","sa":"https://sa.vidhyamitra.com/city/rishikesh/1999-08-21","hi":"https://hi.vidhyamitra.com/city/rishikesh/1999-08-21","x-default":"https://vidhyamitra.com/city/rishikesh/1999-08-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T13:41:11.373Z","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":"2026-06-01T13:41:11.373Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T13:41:11.373Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}