{"id":"vidhyamitra:city-day:vrindavan:1999-08-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/1999-08-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1999-08-13","date_display":"August 13, 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":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451403.770833,"kali_year":5101,"ahargana":1862938.2708,"sun":{"sidereal_longitude":115.4319,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":137.1346,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":21.7027,"elapsed_within_tithi_degrees":9.7027},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2,"moon_longitude":137.1346,"elapsed_within_degrees":3.8013},"yoga":{"number":19,"name":"Parigha","sum_longitude":252.5666},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2451403.770833,"ahargana":1862938.2708,"kali_year":5101,"ayanamsa_lahiri":23.8476,"grahas":{"sun":{"sidereal_longitude":116.03150600000004,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":136.09990600000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false,"latitude":1.8695},"mars":{"sidereal_longitude":203.87440600000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":97.37530600000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":10.888405999999975,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":127.48870599999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":23.02720599999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":112.5653,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":292.5653,"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":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451403.770833,"kali_year":5101,"ahargana":1862938.2708,"sun":{"sidereal_longitude":115.4319,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":137.1346,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":21.7027,"elapsed_within_tithi_degrees":9.7027},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2,"moon_longitude":137.1346,"elapsed_within_degrees":3.8013},"yoga":{"number":19,"name":"Parigha","sum_longitude":252.5666},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.869,"elongation":21.703},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.869,"opposition_distance":158.297}},"eclipse_window_40days":[{"offset_days":14,"type":"lunar","occurs":true,"moon_latitude":-1.307,"opposition_distance":0.12}]},"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"05:48","sunsetLocal":"19:00","solarNoonLocal":"12:24","dayLengthHours":13.191850991655537,"dayLengthDisplay":"13 Hours 11 Mins 31 Secs","nightLengthDisplay":"10 Hours 48 Mins 29 Secs","moonriseLocal":"07:25","moonsetLocal":"20:03","rahuKala":{"name":"Rāhu Kāla","start":"10:45","end":"12:24","startHours":10.749757305013315,"endHours":12.398738678970258,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:42","end":"17:21","startHours":15.696701426884141,"endHours":17.345682800841082,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:27","end":"09:06","startHours":7.45179455709943,"endHours":9.100775931056372,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:19","startHours":8.880911747862115,"endHours":9.320640114250631,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:21","end":"06:42","startHours":6.352473641128135,"endHours":6.704256334238949,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:50","startHours":11.95901031258174,"endHours":12.838467045358776,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:03","end":"04:55","startHours":4.043899717588417,"endHours":4.9233564503654526,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:42","end":"05:48","startHours":4.703492267171193,"endHours":5.802813183142488,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:36","end":"15:29","startHours":14.597380510912847,"endHours":15.476837243689884,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:48","end":"19:12","startHours":18.794664174798026,"endHours":19.194664174798024,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:00","end":"19:33","startHours":18.994664174798025,"endHours":19.544324632783674,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:45","end":"20:30","startHours":18.744664174798025,"endHours":20.494664174798025,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:50","startHours":23.95901031258174,"endHours":24.838467045358776,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:48","end":"07:27","startHours":5.802813183142488,"endHours":7.45179455709943,"quality":"neutral"},{"name":"Labha","start":"07:27","end":"09:06","startHours":7.45179455709943,"endHours":9.100775931056372,"quality":"auspicious"},{"name":"Amṛta","start":"09:06","end":"10:45","startHours":9.100775931056372,"endHours":10.749757305013315,"quality":"auspicious"},{"name":"Kāla","start":"10:45","end":"12:24","startHours":10.749757305013315,"endHours":12.398738678970258,"quality":"inauspicious"},{"name":"Śubha","start":"12:24","end":"14:03","startHours":12.398738678970258,"endHours":14.047720052927199,"quality":"auspicious"},{"name":"Roga","start":"14:03","end":"15:42","startHours":14.047720052927199,"endHours":15.696701426884141,"quality":"inauspicious"},{"name":"Udveg","start":"15:42","end":"17:21","startHours":15.696701426884141,"endHours":17.345682800841082,"quality":"inauspicious"},{"name":"Chala","start":"17:21","end":"19:00","startHours":17.345682800841082,"endHours":18.994664174798025,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:00","end":"20:21","startHours":18.994664174798025,"endHours":20.345682800841082,"quality":"inauspicious"},{"name":"Udveg","start":"20:21","end":"21:42","startHours":20.345682800841082,"endHours":21.69670142688414,"quality":"inauspicious"},{"name":"Chala","start":"21:42","end":"23:03","startHours":21.69670142688414,"endHours":23.047720052927197,"quality":"neutral"},{"name":"Labha","start":"23:03","end":"00:24","startHours":23.047720052927197,"endHours":24.398738678970258,"quality":"auspicious"},{"name":"Amṛta","start":"00:24","end":"01:45","startHours":24.398738678970258,"endHours":25.749757305013315,"quality":"auspicious"},{"name":"Kāla","start":"01:45","end":"03:06","startHours":25.749757305013315,"endHours":27.100775931056372,"quality":"inauspicious"},{"name":"Śubha","start":"03:06","end":"04:27","startHours":27.100775931056372,"endHours":28.451794557099433,"quality":"auspicious"},{"name":"Roga","start":"04:27","end":"05:48","startHours":28.451794557099433,"endHours":29.80281318314249,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:48","end":"06:48","startHours":5.802813183142488,"endHours":6.802813183142488,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:48","end":"07:48","startHours":6.802813183142488,"endHours":7.802813183142488,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:48","end":"08:48","startHours":7.802813183142488,"endHours":8.802813183142488,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:48","end":"09:48","startHours":8.802813183142488,"endHours":9.802813183142488,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:48","end":"10:48","startHours":9.802813183142488,"endHours":10.802813183142488,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:48","end":"11:48","startHours":10.802813183142488,"endHours":11.802813183142488,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:48","end":"12:48","startHours":11.802813183142488,"endHours":12.802813183142488,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:48","end":"13:48","startHours":12.802813183142488,"endHours":13.802813183142488,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:48","end":"14:48","startHours":13.802813183142488,"endHours":14.802813183142488,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:48","end":"15:48","startHours":14.802813183142488,"endHours":15.802813183142488,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:48","end":"16:48","startHours":15.802813183142488,"endHours":16.80281318314249,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:48","end":"17:48","startHours":16.80281318314249,"endHours":17.80281318314249,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:48","end":"18:48","startHours":17.80281318314249,"endHours":18.80281318314249,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:48","end":"19:48","startHours":18.80281318314249,"endHours":19.80281318314249,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:48","end":"20:48","startHours":19.80281318314249,"endHours":20.80281318314249,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:48","end":"21:48","startHours":20.80281318314249,"endHours":21.80281318314249,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:48","end":"22:48","startHours":21.80281318314249,"endHours":22.80281318314249,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:48","end":"23:48","startHours":22.80281318314249,"endHours":23.80281318314249,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:48","end":"00:48","startHours":23.80281318314249,"endHours":24.80281318314249,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:48","end":"01:48","startHours":24.80281318314249,"endHours":25.80281318314249,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:48","end":"02:48","startHours":25.80281318314249,"endHours":26.80281318314249,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:48","end":"03:48","startHours":26.80281318314249,"endHours":27.80281318314249,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:48","end":"04:48","startHours":27.80281318314249,"endHours":28.80281318314249,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:48","end":"05:48","startHours":28.80281318314249,"endHours":29.80281318314249,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"West","rahuVasa":"South-East","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":14.85061831355289,"eotMinutes":-4.561520738215509,"ayanamsa":23.8476}},"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":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Dvitīyā · Vikram 2056 Nandana · Śaka 1921 Pramāthi"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"vrindavan"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga August 13, 1999 CE · Vṛndāvana · Vidhyamitra","description":"August 13, 1999 CE for Vṛndāvana: Śukla Dvitīyā, sūryodaya 05:48, sūryāsta 19:00.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/1999-08-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/1999-08-13","sa":"https://sa.vidhyamitra.com/city/vrindavan/1999-08-13","hi":"https://hi.vidhyamitra.com/city/vrindavan/1999-08-13","x-default":"https://vidhyamitra.com/city/vrindavan/1999-08-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T10:22:30.691Z","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":"2026-06-02T10:22:30.692Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T10:22:30.692Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}