{"id":"vidhyamitra:city-day:vrindavan:2025-09-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/2025-09-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2025-09-15","date_display":"September 15, 2025 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":2025,"month":9,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2460933.770833,"kali_year":5127,"ahargana":1872468.2708,"sun":{"sidereal_longitude":147.4648,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":63.4014,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":275.9366,"elapsed_within_tithi_degrees":11.9366},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":63.4014,"elapsed_within_degrees":10.068},"yoga":{"number":16,"name":"Siddhi","sum_longitude":210.8662},"karana":{"half_tithi_index":45,"name":"Kaulava"},"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":2025,"month":9,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2460933.770833,"ahargana":1872468.2708,"kali_year":5127,"ayanamsa_lahiri":24.2121,"grahas":{"sun":{"sidereal_longitude":148.25359000000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":66.03949,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false,"latitude":4.4771},"mars":{"sidereal_longitude":180.55619000000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":149.26129000000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":85.91709000000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"venus":{"sidereal_longitude":119.99518999999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":334.84329,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":327.6201,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":147.6201,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":2025,"month":9,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2460933.770833,"kali_year":5127,"ahargana":1872468.2708,"sun":{"sidereal_longitude":147.4648,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":63.4014,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":275.9366,"elapsed_within_tithi_degrees":11.9366},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":63.4014,"elapsed_within_degrees":10.068},"yoga":{"number":16,"name":"Siddhi","sum_longitude":210.8662},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.477,"elongation":84.063},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.477,"opposition_distance":95.937}},"eclipse_window_40days":[{"offset_days":-7,"type":"lunar","occurs":true,"moon_latitude":-0.388,"opposition_distance":2.369}]},"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":"06:04","sunsetLocal":"18:24","solarNoonLocal":"12:14","dayLengthHours":12.33381399004322,"dayLengthDisplay":"12 Hours 20 Mins 02 Secs","nightLengthDisplay":"11 Hours 39 Mins 58 Secs","moonriseLocal":"23:50","moonsetLocal":"13:40","rahuKala":{"name":"Rāhu Kāla","start":"07:36","end":"09:09","startHours":7.605921867343752,"endHours":9.147648616099154,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:41","end":"12:14","startHours":10.689375364854557,"endHours":12.23110211360996,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:46","end":"15:19","startHours":13.772828862365362,"endHours":15.314555611120765,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:21","startHours":8.942085049598434,"endHours":9.353212182599876,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:35","end":"06:54","startHours":6.57810403484015,"endHours":6.907005741241303,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:39","startHours":11.819974980608519,"endHours":12.642229246611402,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:25","end":"05:15","startHours":4.419686586582587,"endHours":5.2419408525854685,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:02","end":"06:04","startHours":5.036377286084748,"endHours":6.06419511858835,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:17","end":"15:07","startHours":14.286737778617162,"endHours":15.108992044620043,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:12","end":"18:36","startHours":18.19800910863157,"endHours":18.59800910863157,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:24","end":"18:55","startHours":18.39800910863157,"endHours":18.91191802488337,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:09","end":"19:54","startHours":18.14800910863157,"endHours":19.89800910863157,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:39","startHours":23.81997498060852,"endHours":24.6422292466114,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:04","end":"07:36","startHours":6.06419511858835,"endHours":7.605921867343752,"quality":"auspicious"},{"name":"Kāla","start":"07:36","end":"09:09","startHours":7.605921867343752,"endHours":9.147648616099154,"quality":"inauspicious"},{"name":"Śubha","start":"09:09","end":"10:41","startHours":9.147648616099154,"endHours":10.689375364854557,"quality":"auspicious"},{"name":"Roga","start":"10:41","end":"12:14","startHours":10.689375364854557,"endHours":12.23110211360996,"quality":"inauspicious"},{"name":"Udveg","start":"12:14","end":"13:46","startHours":12.23110211360996,"endHours":13.772828862365362,"quality":"inauspicious"},{"name":"Chala","start":"13:46","end":"15:19","startHours":13.772828862365362,"endHours":15.314555611120765,"quality":"neutral"},{"name":"Labha","start":"15:19","end":"16:51","startHours":15.314555611120765,"endHours":16.856282359876168,"quality":"auspicious"},{"name":"Amṛta","start":"16:51","end":"18:24","startHours":16.856282359876168,"endHours":18.39800910863157,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:24","end":"19:51","startHours":18.39800910863157,"endHours":19.856282359876168,"quality":"neutral"},{"name":"Labha","start":"19:51","end":"21:19","startHours":19.856282359876168,"endHours":21.314555611120763,"quality":"auspicious"},{"name":"Amṛta","start":"21:19","end":"22:46","startHours":21.314555611120763,"endHours":22.772828862365362,"quality":"auspicious"},{"name":"Kāla","start":"22:46","end":"00:14","startHours":22.772828862365362,"endHours":24.23110211360996,"quality":"inauspicious"},{"name":"Śubha","start":"00:14","end":"01:41","startHours":24.23110211360996,"endHours":25.689375364854556,"quality":"auspicious"},{"name":"Roga","start":"01:41","end":"03:09","startHours":25.689375364854556,"endHours":27.147648616099154,"quality":"inauspicious"},{"name":"Udveg","start":"03:09","end":"04:36","startHours":27.147648616099154,"endHours":28.605921867343753,"quality":"inauspicious"},{"name":"Chala","start":"04:36","end":"06:04","startHours":28.605921867343753,"endHours":30.06419511858835,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:04","end":"07:04","startHours":6.06419511858835,"endHours":7.06419511858835,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:04","end":"08:04","startHours":7.06419511858835,"endHours":8.06419511858835,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:04","end":"09:04","startHours":8.06419511858835,"endHours":9.06419511858835,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:04","end":"10:04","startHours":9.06419511858835,"endHours":10.06419511858835,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:04","end":"11:04","startHours":10.06419511858835,"endHours":11.06419511858835,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:04","end":"12:04","startHours":11.06419511858835,"endHours":12.06419511858835,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:04","end":"13:04","startHours":12.06419511858835,"endHours":13.06419511858835,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:04","end":"14:04","startHours":13.06419511858835,"endHours":14.06419511858835,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:04","end":"15:04","startHours":14.06419511858835,"endHours":15.06419511858835,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:04","end":"16:04","startHours":15.06419511858835,"endHours":16.06419511858835,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:04","end":"17:04","startHours":16.06419511858835,"endHours":17.06419511858835,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:04","end":"18:04","startHours":17.06419511858835,"endHours":18.06419511858835,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:04","end":"19:04","startHours":18.06419511858835,"endHours":19.06419511858835,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:04","end":"20:04","startHours":19.06419511858835,"endHours":20.06419511858835,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:04","end":"21:04","startHours":20.06419511858835,"endHours":21.06419511858835,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:04","end":"22:04","startHours":21.06419511858835,"endHours":22.06419511858835,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:04","end":"23:04","startHours":22.06419511858835,"endHours":23.06419511858835,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:04","end":"00:04","startHours":23.06419511858835,"endHours":24.06419511858835,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:04","end":"01:04","startHours":24.06419511858835,"endHours":25.06419511858835,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:04","end":"02:04","startHours":25.06419511858835,"endHours":26.06419511858835,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:04","end":"03:04","startHours":26.06419511858835,"endHours":27.06419511858835,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:04","end":"04:04","startHours":27.06419511858835,"endHours":28.06419511858835,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:04","end":"05:04","startHours":28.06419511858835,"endHours":29.06419511858835,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:04","end":"06:04","startHours":29.06419511858835,"endHours":30.06419511858835,"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","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":2.9893669476211553,"eotMinutes":5.496673183402374,"ayanamsa":24.2121}},"calendars":{"vikram_samvat":2082,"vikram_samvatsara":"Kālayukta","saka_samvat":1947,"saka_samvatsara":"Viśvāvasu","bengali_samvat":1432,"malayalam_era":1201,"nanakshahi_year":556,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Aṣṭamī · Vikram 2082 Kālayukta · Śaka 1947 Viśvāvasu"},"festivals":[{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"precedence":5}],"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":[{"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}]},"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 September 15, 2025 CE · Vṛndāvana · Vidhyamitra","description":"September 15, 2025 CE for Vṛndāvana: Kṛṣṇa Aṣṭamī, sūryodaya 06:04, sūryāsta 18:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/2025-09-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/2025-09-15","sa":"https://sa.vidhyamitra.com/city/vrindavan/2025-09-15","hi":"https://hi.vidhyamitra.com/city/vrindavan/2025-09-15","x-default":"https://vidhyamitra.com/city/vrindavan/2025-09-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T21:17:31.757Z","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":"2026-05-14T21:17:31.757Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T21:17:31.757Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}