{"id":"vidhyamitra:city-day:mathura:1981-07-24:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/mathura/1981-07-24","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-07-24","date_display":"July 24, 1981 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":1981,"month":7,"day":24,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444809.770833,"kali_year":5083,"ahargana":1856344.2708,"sun":{"sidereal_longitude":97.0294,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":3.5582,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":266.5288,"elapsed_within_tithi_degrees":2.5288},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":3.5582,"elapsed_within_degrees":3.5582},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":100.5877},"karana":{"half_tithi_index":44,"name":"Bālava"},"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":1981,"month":7,"day":24,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444809.770833,"ahargana":1856344.2708,"kali_year":5083,"ayanamsa_lahiri":23.5954,"grahas":{"sun":{"sidereal_longitude":97.47334599999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"moon":{"sidereal_longitude":2.6471460000000206,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false,"latitude":-4.4518},"mars":{"sidereal_longitude":70.471046,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":80.31694600000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":161.587846,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"venus":{"sidereal_longitude":126.02604600000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":161.044446,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":101.9472,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":281.9472,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"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":1981,"month":7,"day":24,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444809.770833,"kali_year":5083,"ahargana":1856344.2708,"sun":{"sidereal_longitude":97.0294,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":3.5582,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":266.5288,"elapsed_within_tithi_degrees":2.5288},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":3.5582,"elapsed_within_degrees":3.5582},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":100.5877},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.452,"elongation":93.471},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.452,"opposition_distance":86.529}},"eclipse_window_40days":[{"offset_days":-7,"type":"lunar","occurs":true,"moon_latitude":1.092,"opposition_distance":2.128},{"offset_days":7,"type":"solar","occurs":true,"moon_latitude":0.181,"elongation":0.207}]},"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"05:38","sunsetLocal":"19:13","solarNoonLocal":"12:25","dayLengthHours":13.585069283089602,"dayLengthDisplay":"13 Hours 35 Mins 06 Secs","nightLengthDisplay":"10 Hours 24 Mins 54 Secs","moonriseLocal":"23:42","moonsetLocal":"12:30","rahuKala":{"name":"Rāhu Kāla","start":"10:44","end":"12:25","startHours":10.726289172799106,"endHours":12.424422833185307,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:49","end":"17:31","startHours":15.820690153957708,"endHours":17.518823814343907,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:20","end":"09:02","startHours":7.330021852026706,"endHours":9.028155512412907,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:48","end":"09:15","startHours":8.80173769102808,"endHours":9.254573333797733,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:12","end":"06:34","startHours":6.197932745102573,"endHours":6.560201259318296,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:53","startHours":11.971587190415654,"endHours":12.87725847595496,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:49","end":"04:44","startHours":3.8205456205618926,"endHours":4.726216906101199,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:30","end":"05:38","startHours":4.499799084716372,"endHours":5.631888191640506,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:41","end":"15:36","startHours":14.688601047033575,"endHours":15.594272332572883,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:01","end":"19:25","startHours":19.01695747473011,"endHours":19.416957474730108,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:13","end":"19:47","startHours":19.21695747473011,"endHours":19.783002028192175,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:58","end":"20:43","startHours":18.96695747473011,"endHours":20.71695747473011,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:53","startHours":23.971587190415654,"endHours":24.87725847595496,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:38","end":"07:20","startHours":5.631888191640506,"endHours":7.330021852026706,"quality":"neutral"},{"name":"Labha","start":"07:20","end":"09:02","startHours":7.330021852026706,"endHours":9.028155512412907,"quality":"auspicious"},{"name":"Amṛta","start":"09:02","end":"10:44","startHours":9.028155512412907,"endHours":10.726289172799106,"quality":"auspicious"},{"name":"Kāla","start":"10:44","end":"12:25","startHours":10.726289172799106,"endHours":12.424422833185307,"quality":"inauspicious"},{"name":"Śubha","start":"12:25","end":"14:07","startHours":12.424422833185307,"endHours":14.122556493571508,"quality":"auspicious"},{"name":"Roga","start":"14:07","end":"15:49","startHours":14.122556493571508,"endHours":15.820690153957708,"quality":"inauspicious"},{"name":"Udveg","start":"15:49","end":"17:31","startHours":15.820690153957708,"endHours":17.518823814343907,"quality":"inauspicious"},{"name":"Chala","start":"17:31","end":"19:13","startHours":17.518823814343907,"endHours":19.21695747473011,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:13","end":"20:31","startHours":19.21695747473011,"endHours":20.518823814343907,"quality":"inauspicious"},{"name":"Udveg","start":"20:31","end":"21:49","startHours":20.518823814343907,"endHours":21.820690153957706,"quality":"inauspicious"},{"name":"Chala","start":"21:49","end":"23:07","startHours":21.820690153957706,"endHours":23.12255649357151,"quality":"neutral"},{"name":"Labha","start":"23:07","end":"00:25","startHours":23.12255649357151,"endHours":24.424422833185307,"quality":"auspicious"},{"name":"Amṛta","start":"00:25","end":"01:44","startHours":24.424422833185307,"endHours":25.726289172799106,"quality":"auspicious"},{"name":"Kāla","start":"01:44","end":"03:02","startHours":25.726289172799106,"endHours":27.02815551241291,"quality":"inauspicious"},{"name":"Śubha","start":"03:02","end":"04:20","startHours":27.02815551241291,"endHours":28.330021852026707,"quality":"auspicious"},{"name":"Roga","start":"04:20","end":"05:38","startHours":28.330021852026707,"endHours":29.631888191640506,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:38","end":"06:38","startHours":5.631888191640506,"endHours":6.631888191640506,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:38","end":"07:38","startHours":6.631888191640506,"endHours":7.631888191640506,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:38","end":"08:38","startHours":7.631888191640506,"endHours":8.631888191640506,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:38","end":"09:38","startHours":8.631888191640506,"endHours":9.631888191640506,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:38","end":"10:38","startHours":9.631888191640506,"endHours":10.631888191640506,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:38","end":"11:38","startHours":10.631888191640506,"endHours":11.631888191640506,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:38","end":"12:38","startHours":11.631888191640506,"endHours":12.631888191640506,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:38","end":"13:38","startHours":12.631888191640506,"endHours":13.631888191640506,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:38","end":"14:38","startHours":13.631888191640506,"endHours":14.631888191640506,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:38","end":"15:38","startHours":14.631888191640506,"endHours":15.631888191640506,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:38","end":"16:38","startHours":15.631888191640506,"endHours":16.631888191640506,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:38","end":"17:38","startHours":16.631888191640506,"endHours":17.631888191640506,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:38","end":"18:38","startHours":17.631888191640506,"endHours":18.631888191640506,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:38","end":"19:38","startHours":18.631888191640506,"endHours":19.631888191640506,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:38","end":"20:38","startHours":19.631888191640506,"endHours":20.631888191640506,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:38","end":"21:38","startHours":20.631888191640506,"endHours":21.631888191640506,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:38","end":"22:38","startHours":21.631888191640506,"endHours":22.631888191640506,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:38","end":"23:38","startHours":22.631888191640506,"endHours":23.631888191640506,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:38","end":"00:38","startHours":23.631888191640506,"endHours":24.631888191640506,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:38","end":"01:38","startHours":24.631888191640506,"endHours":25.631888191640506,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:38","end":"02:38","startHours":25.631888191640506,"endHours":26.631888191640506,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:38","end":"03:38","startHours":26.631888191640506,"endHours":27.631888191640506,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:38","end":"04:38","startHours":27.631888191640506,"endHours":28.631888191640506,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:38","end":"05:38","startHours":28.631888191640506,"endHours":29.631888191640506,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":19.918139937698317,"eotMinutes":-6.160169991118456,"ayanamsa":23.5954}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Kṛṣṇa Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Kṛṣṇa Aṣṭamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi":"Karka"},"precedence":2}],"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":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","relevance":0.5},{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"mathura"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga July 24, 1981 CE · Mathurā · Vidhyamitra","description":"July 24, 1981 CE for Mathurā: Kṛṣṇa Aṣṭamī, sūryodaya 05:38, sūryāsta 19:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/mathura/1981-07-24","hreflang_alternates":{"en":"https://vidhyamitra.com/city/mathura/1981-07-24","sa":"https://sa.vidhyamitra.com/city/mathura/1981-07-24","hi":"https://hi.vidhyamitra.com/city/mathura/1981-07-24","x-default":"https://vidhyamitra.com/city/mathura/1981-07-24"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T00:45:43.495Z","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":"2026-05-15T00:45:43.495Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T00:45:43.495Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}