{"id":"vidhyamitra:city-day:vrindavan:2180-09-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/2180-09-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2180-09-23","date_display":"September 23, 2180 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":2180,"month":9,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517554.770833,"kali_year":5282,"ahargana":1929089.2708,"sun":{"sidereal_longitude":153.2046,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":197.0276,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":43.8229,"elapsed_within_tithi_degrees":7.8229},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":197.0276,"elapsed_within_degrees":10.3609},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":350.2322},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"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":2180,"month":9,"day":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517554.770833,"ahargana":1929089.2708,"kali_year":5282,"ayanamsa_lahiri":26.3776,"grahas":{"sun":{"sidereal_longitude":154.381752,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":200.78425199999992,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false,"latitude":-0.8223},"mars":{"sidereal_longitude":52.45345200000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":148.787852,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":105.73475199999996,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"venus":{"sidereal_longitude":119.48785199999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":81.03375199999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":207.567,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":27.567,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","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":2180,"month":9,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517554.770833,"kali_year":5282,"ahargana":1929089.2708,"sun":{"sidereal_longitude":153.2046,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":197.0276,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":43.8229,"elapsed_within_tithi_degrees":7.8229},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":197.0276,"elapsed_within_degrees":10.3609},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":350.2322},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.822,"elongation":43.823},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.822,"opposition_distance":136.177}},"eclipse_window_40days":[]},"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":"06:08","sunsetLocal":"18:14","solarNoonLocal":"12:11","dayLengthHours":12.104268601320747,"dayLengthDisplay":"12 Hours 06 Mins 15 Secs","nightLengthDisplay":"11 Hours 53 Mins 45 Secs","moonriseLocal":"09:50","moonsetLocal":"20:43","rahuKala":{"name":"Rāhu Kāla","start":"09:09","end":"10:40","startHours":9.156045616340393,"endHours":10.669079191505487,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:42","end":"15:12","startHours":13.695146341835674,"endHours":15.208179917000766,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:08","end":"07:39","startHours":6.129978466010207,"endHours":7.6430120411753,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:21","startHours":8.954307806318381,"endHours":9.357783426362406,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:57","startHours":6.634322991065238,"endHours":6.957103487100458,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:47","end":"12:35","startHours":11.778637146626556,"endHours":12.585588386714607,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:31","end":"05:19","startHours":4.516075985834107,"endHours":5.323027225922157,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:08","startHours":5.1212894159001445,"endHours":6.129978466010207,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:12","end":"15:00","startHours":14.199490866890706,"endHours":15.006442106978756,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:02","end":"18:26","startHours":18.034247067330956,"endHours":18.434247067330954,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:14","end":"18:44","startHours":18.234247067330955,"endHours":18.738591592385987,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:59","end":"19:44","startHours":17.984247067330955,"endHours":19.734247067330955,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:47","end":"00:35","startHours":23.778637146626558,"endHours":24.585588386714605,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:08","end":"07:39","startHours":6.129978466010207,"endHours":7.6430120411753,"quality":"inauspicious"},{"name":"Śubha","start":"07:39","end":"09:09","startHours":7.6430120411753,"endHours":9.156045616340393,"quality":"auspicious"},{"name":"Roga","start":"09:09","end":"10:40","startHours":9.156045616340393,"endHours":10.669079191505487,"quality":"inauspicious"},{"name":"Udveg","start":"10:40","end":"12:11","startHours":10.669079191505487,"endHours":12.182112766670581,"quality":"inauspicious"},{"name":"Chala","start":"12:11","end":"13:42","startHours":12.182112766670581,"endHours":13.695146341835674,"quality":"neutral"},{"name":"Labha","start":"13:42","end":"15:12","startHours":13.695146341835674,"endHours":15.208179917000766,"quality":"auspicious"},{"name":"Amṛta","start":"15:12","end":"16:43","startHours":15.208179917000766,"endHours":16.721213492165862,"quality":"auspicious"},{"name":"Kāla","start":"16:43","end":"18:14","startHours":16.721213492165862,"endHours":18.234247067330955,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:14","end":"19:43","startHours":18.234247067330955,"endHours":19.721213492165862,"quality":"auspicious"},{"name":"Amṛta","start":"19:43","end":"21:12","startHours":19.721213492165862,"endHours":21.20817991700077,"quality":"auspicious"},{"name":"Kāla","start":"21:12","end":"22:42","startHours":21.20817991700077,"endHours":22.695146341835674,"quality":"inauspicious"},{"name":"Śubha","start":"22:42","end":"00:11","startHours":22.695146341835674,"endHours":24.18211276667058,"quality":"auspicious"},{"name":"Roga","start":"00:11","end":"01:40","startHours":24.18211276667058,"endHours":25.66907919150549,"quality":"inauspicious"},{"name":"Udveg","start":"01:40","end":"03:09","startHours":25.66907919150549,"endHours":27.156045616340393,"quality":"inauspicious"},{"name":"Chala","start":"03:09","end":"04:39","startHours":27.156045616340393,"endHours":28.6430120411753,"quality":"neutral"},{"name":"Labha","start":"04:39","end":"06:08","startHours":28.6430120411753,"endHours":30.129978466010208,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.129978466010207,"endHours":7.129978466010207,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.129978466010207,"endHours":8.129978466010208,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.129978466010208,"endHours":9.129978466010208,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.129978466010208,"endHours":10.129978466010208,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.129978466010208,"endHours":11.129978466010208,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.129978466010208,"endHours":12.129978466010208,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.129978466010208,"endHours":13.129978466010208,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.129978466010208,"endHours":14.129978466010208,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.129978466010208,"endHours":15.129978466010208,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.129978466010208,"endHours":16.129978466010208,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.129978466010208,"endHours":17.129978466010208,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.129978466010208,"endHours":18.129978466010208,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.129978466010208,"endHours":19.129978466010208,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.129978466010208,"endHours":20.129978466010208,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.129978466010208,"endHours":21.129978466010208,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.129978466010208,"endHours":22.129978466010208,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.129978466010208,"endHours":23.129978466010208,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.129978466010208,"endHours":24.129978466010208,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.129978466010208,"endHours":25.129978466010208,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.129978466010208,"endHours":26.129978466010208,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.129978466010208,"endHours":27.129978466010208,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.129978466010208,"endHours":28.129978466010208,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.129978466010208,"endHours":29.129978466010208,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.129978466010208,"endHours":30.129978466010208,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"East","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-0.30201149700515995,"eotMinutes":8.436033999765183,"ayanamsa":26.3776}},"calendars":{"vikram_samvat":2237,"vikram_samvatsara":"Vijaya","saka_samvat":2102,"saka_samvatsara":"Vikrama","bengali_samvat":1587,"malayalam_era":1356,"nanakshahi_year":711,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Caturthī · Vikram 2237 Vijaya · Śaka 2102 Vikrama"},"festivals":[{"id":"ganesha-chaturthi","name":"Gaṇeśa Caturthī","name_sanskrit":"गणेश चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Gaṇeśa's birth day; 11-day festival in Maharashtra.","vrata":false,"detection":{"tithi_number":4,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":1},{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"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":[]},"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 23, 2180 CE · Vṛndāvana · Vidhyamitra","description":"September 23, 2180 CE for Vṛndāvana: Śukla Caturthī, sūryodaya 06:08, sūryāsta 18:14.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/2180-09-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/2180-09-23","sa":"https://sa.vidhyamitra.com/city/vrindavan/2180-09-23","hi":"https://hi.vidhyamitra.com/city/vrindavan/2180-09-23","x-default":"https://vidhyamitra.com/city/vrindavan/2180-09-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T20:35:28.210Z","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":"2026-06-02T20:35:28.210Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T20:35:28.210Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}