{"id":"vidhyamitra:city-day:vrindavan:1980-07-25:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/1980-07-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1980-07-25","date_display":"July 25, 1980 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":1980,"month":7,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444445.770833,"kali_year":5082,"ahargana":1855980.2708,"sun":{"sidereal_longitude":98.2238,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":243.1368,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":144.913,"elapsed_within_tithi_degrees":0.913},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":243.1368,"elapsed_within_degrees":3.1368},"yoga":{"number":26,"name":"Indra","sum_longitude":341.3606},"karana":{"half_tithi_index":24,"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":1980,"month":7,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444445.770833,"ahargana":1855980.2708,"kali_year":5082,"ayanamsa_lahiri":23.5815,"grahas":{"sun":{"sidereal_longitude":98.673453,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"moon":{"sidereal_longitude":243.74215300000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false,"latitude":3.8191},"mars":{"sidereal_longitude":164.887653,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":82.020153,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":136.64005299999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":58.13505300000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":149.551153,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":121.2336,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":301.2336,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":1980,"month":7,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444445.770833,"kali_year":5082,"ahargana":1855980.2708,"sun":{"sidereal_longitude":98.2238,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":243.1368,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":144.913,"elapsed_within_tithi_degrees":0.913},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":243.1368,"elapsed_within_degrees":3.1368},"yoga":{"number":26,"name":"Indra","sum_longitude":341.3606},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.819,"elongation":144.913},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.819,"opposition_distance":35.087}},"eclipse_window_40days":[{"offset_days":3,"type":"lunar","occurs":true,"moon_latitude":1.393,"opposition_distance":1.959}]},"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":"05:38","sunsetLocal":"19:13","solarNoonLocal":"12:26","dayLengthHours":13.568354392670962,"dayLengthDisplay":"13 Hours 34 Mins 06 Secs","nightLengthDisplay":"10 Hours 25 Mins 54 Secs","moonriseLocal":"16:55","moonsetLocal":"03:17","rahuKala":{"name":"Rāhu Kāla","start":"10:44","end":"12:26","startHours":10.72962988645697,"endHours":12.425674185540839,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:49","end":"17:31","startHours":15.817762783708579,"endHours":17.51380708279245,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:20","end":"09:02","startHours":7.337541288289228,"endHours":9.033585587373098,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:48","end":"09:16","startHours":8.80744634749525,"endHours":9.259724827250947,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:12","end":"06:34","startHours":6.206845088899981,"endHours":6.56866787270454,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:53","startHours":11.97339570578514,"endHours":12.877952665296537,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:50","end":"04:44","startHours":3.832383070182563,"endHours":4.73694002969396,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:31","end":"05:38","startHours":4.510800789816111,"endHours":5.641496989205358,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:41","end":"15:35","startHours":14.687066584319332,"endHours":15.59162354383073,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:01","end":"19:25","startHours":19.00985138187632,"endHours":19.40985138187632,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:13","end":"19:47","startHours":19.20985138187632,"endHours":19.775199481570944,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:58","end":"20:43","startHours":18.95985138187632,"endHours":20.70985138187632,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:53","startHours":23.97339570578514,"endHours":24.877952665296537,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:38","end":"07:20","startHours":5.641496989205358,"endHours":7.337541288289228,"quality":"neutral"},{"name":"Labha","start":"07:20","end":"09:02","startHours":7.337541288289228,"endHours":9.033585587373098,"quality":"auspicious"},{"name":"Amṛta","start":"09:02","end":"10:44","startHours":9.033585587373098,"endHours":10.72962988645697,"quality":"auspicious"},{"name":"Kāla","start":"10:44","end":"12:26","startHours":10.72962988645697,"endHours":12.425674185540839,"quality":"inauspicious"},{"name":"Śubha","start":"12:26","end":"14:07","startHours":12.425674185540839,"endHours":14.121718484624708,"quality":"auspicious"},{"name":"Roga","start":"14:07","end":"15:49","startHours":14.121718484624708,"endHours":15.817762783708579,"quality":"inauspicious"},{"name":"Udveg","start":"15:49","end":"17:31","startHours":15.817762783708579,"endHours":17.51380708279245,"quality":"inauspicious"},{"name":"Chala","start":"17:31","end":"19:13","startHours":17.51380708279245,"endHours":19.20985138187632,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:13","end":"20:31","startHours":19.20985138187632,"endHours":20.51380708279245,"quality":"inauspicious"},{"name":"Udveg","start":"20:31","end":"21:49","startHours":20.51380708279245,"endHours":21.81776278370858,"quality":"inauspicious"},{"name":"Chala","start":"21:49","end":"23:07","startHours":21.81776278370858,"endHours":23.121718484624708,"quality":"neutral"},{"name":"Labha","start":"23:07","end":"00:26","startHours":23.121718484624708,"endHours":24.42567418554084,"quality":"auspicious"},{"name":"Amṛta","start":"00:26","end":"01:44","startHours":24.42567418554084,"endHours":25.72962988645697,"quality":"auspicious"},{"name":"Kāla","start":"01:44","end":"03:02","startHours":25.72962988645697,"endHours":27.033585587373096,"quality":"inauspicious"},{"name":"Śubha","start":"03:02","end":"04:20","startHours":27.033585587373096,"endHours":28.337541288289227,"quality":"auspicious"},{"name":"Roga","start":"04:20","end":"05:38","startHours":28.337541288289227,"endHours":29.641496989205358,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:38","end":"06:38","startHours":5.641496989205358,"endHours":6.641496989205358,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:38","end":"07:38","startHours":6.641496989205358,"endHours":7.641496989205358,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:38","end":"08:38","startHours":7.641496989205358,"endHours":8.641496989205358,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:38","end":"09:38","startHours":8.641496989205358,"endHours":9.641496989205358,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:38","end":"10:38","startHours":9.641496989205358,"endHours":10.641496989205358,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:38","end":"11:38","startHours":10.641496989205358,"endHours":11.641496989205358,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:38","end":"12:38","startHours":11.641496989205358,"endHours":12.641496989205358,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:38","end":"13:38","startHours":12.641496989205358,"endHours":13.641496989205358,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:38","end":"14:38","startHours":13.641496989205358,"endHours":14.641496989205358,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:38","end":"15:38","startHours":14.641496989205358,"endHours":15.641496989205358,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:38","end":"16:38","startHours":15.641496989205358,"endHours":16.641496989205358,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:38","end":"17:38","startHours":16.641496989205358,"endHours":17.641496989205358,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:38","end":"18:38","startHours":17.641496989205358,"endHours":18.641496989205358,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:38","end":"19:38","startHours":18.641496989205358,"endHours":19.641496989205358,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:38","end":"20:38","startHours":19.641496989205358,"endHours":20.641496989205358,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:38","end":"21:38","startHours":20.641496989205358,"endHours":21.641496989205358,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:38","end":"22:38","startHours":21.641496989205358,"endHours":22.641496989205358,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:38","end":"23:38","startHours":22.641496989205358,"endHours":23.641496989205358,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:38","end":"00:38","startHours":23.641496989205358,"endHours":24.641496989205358,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:38","end":"01:38","startHours":24.641496989205358,"endHours":25.641496989205358,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:38","end":"02:38","startHours":25.641496989205358,"endHours":26.641496989205358,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:38","end":"03:38","startHours":26.641496989205358,"endHours":27.641496989205358,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:38","end":"04:38","startHours":27.641496989205358,"endHours":28.641496989205358,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:38","end":"05:38","startHours":28.641496989205358,"endHours":29.641496989205358,"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":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":19.654959509460024,"eotMinutes":-6.177651132450234,"ayanamsa":23.5815}},"calendars":{"vikram_samvat":2037,"vikram_samvatsara":"Śrīmukha","saka_samvat":1902,"saka_samvatsara":"Raudra","bengali_samvat":1387,"malayalam_era":1156,"nanakshahi_year":511,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āṣāḍha","lunar_month_amanta":"Āṣāḍha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Karkaṭa (Āḍi)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Śukla Trayodaśī · Vikram 2037 Śrīmukha · Śaka 1902 Raudra"},"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":"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 July 25, 1980 CE · Vṛndāvana · Vidhyamitra","description":"July 25, 1980 CE for Vṛndāvana: Śukla Trayodaśī, sūryodaya 05:38, sūryāsta 19:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/1980-07-25","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/1980-07-25","sa":"https://sa.vidhyamitra.com/city/vrindavan/1980-07-25","hi":"https://hi.vidhyamitra.com/city/vrindavan/1980-07-25","x-default":"https://vidhyamitra.com/city/vrindavan/1980-07-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T13:28:39.053Z","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":"2026-06-01T13:28:39.053Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T13:28:39.053Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}