{"id":"vidhyamitra:city-day:vrindavan:2180-04-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/2180-04-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2180-04-17","date_display":"April 17, 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":4,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517395.770833,"kali_year":5281,"ahargana":1928930.2708,"sun":{"sidereal_longitude":1.0941,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":268.4946,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":267.4005,"elapsed_within_tithi_degrees":3.4005},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1,"moon_longitude":268.4946,"elapsed_within_degrees":1.8279},"yoga":{"number":21,"name":"Siddha","sum_longitude":269.5887},"karana":{"half_tithi_index":44,"name":"Bālava"},"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":2180,"month":4,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517395.770833,"ahargana":1928930.2708,"kali_year":5281,"ayanamsa_lahiri":26.3715,"grahas":{"sun":{"sidereal_longitude":1.3846270000000231,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":271.975727,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false,"latitude":3.5689},"mars":{"sidereal_longitude":305.304927,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":14.869426999999973,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":74.179127,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":2.307627000000025,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":63.31592699999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":215.9916,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":35.9916,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":2180,"month":4,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517395.770833,"kali_year":5281,"ahargana":1928930.2708,"sun":{"sidereal_longitude":1.0941,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":268.4946,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":267.4005,"elapsed_within_tithi_degrees":3.4005},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1,"moon_longitude":268.4946,"elapsed_within_degrees":1.8279},"yoga":{"number":21,"name":"Siddha","sum_longitude":269.5887},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.569,"elongation":92.6},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.569,"opposition_distance":87.4}},"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":"05:53","sunsetLocal":"18:46","solarNoonLocal":"12:19","dayLengthHours":12.881111867252066,"dayLengthDisplay":"12 Hours 52 Mins 52 Secs","nightLengthDisplay":"11 Hours 07 Mins 08 Secs","moonriseLocal":"01:04","moonsetLocal":"11:39","rahuKala":{"name":"Rāhu Kāla","start":"07:29","end":"09:06","startHours":7.48789556678498,"endHours":9.098034550191489,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:42","end":"12:19","startHours":10.708173533597996,"endHours":12.318312517004504,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:56","end":"15:32","startHours":13.928451500411011,"endHours":15.538590483817522,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:19","startHours":8.883349352403954,"endHours":9.312719747979022,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:25","end":"06:45","startHours":6.414469577847307,"endHours":6.757965894307363,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:45","startHours":11.888942121429436,"endHours":12.747682912579572,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:10","end":"05:01","startHours":4.160275001078196,"endHours":5.019015792228334,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:48","end":"05:53","startHours":4.804330594440799,"endHours":5.8777565833784715,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:28","end":"15:19","startHours":14.46516449487985,"endHours":15.323905286029989,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:34","end":"18:58","startHours":18.558868450630538,"endHours":18.958868450630536,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:46","end":"19:18","startHours":18.758868450630537,"endHours":19.295581445099373,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:31","end":"20:16","startHours":18.508868450630537,"endHours":20.258868450630537,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:45","startHours":23.888942121429434,"endHours":24.747682912579574,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:53","end":"07:29","startHours":5.8777565833784715,"endHours":7.48789556678498,"quality":"auspicious"},{"name":"Kāla","start":"07:29","end":"09:06","startHours":7.48789556678498,"endHours":9.098034550191489,"quality":"inauspicious"},{"name":"Śubha","start":"09:06","end":"10:42","startHours":9.098034550191489,"endHours":10.708173533597996,"quality":"auspicious"},{"name":"Roga","start":"10:42","end":"12:19","startHours":10.708173533597996,"endHours":12.318312517004504,"quality":"inauspicious"},{"name":"Udveg","start":"12:19","end":"13:56","startHours":12.318312517004504,"endHours":13.928451500411011,"quality":"inauspicious"},{"name":"Chala","start":"13:56","end":"15:32","startHours":13.928451500411011,"endHours":15.538590483817522,"quality":"neutral"},{"name":"Labha","start":"15:32","end":"17:09","startHours":15.538590483817522,"endHours":17.14872946722403,"quality":"auspicious"},{"name":"Amṛta","start":"17:09","end":"18:46","startHours":17.14872946722403,"endHours":18.758868450630537,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:46","end":"20:09","startHours":18.758868450630537,"endHours":20.14872946722403,"quality":"neutral"},{"name":"Labha","start":"20:09","end":"21:32","startHours":20.14872946722403,"endHours":21.538590483817522,"quality":"auspicious"},{"name":"Amṛta","start":"21:32","end":"22:56","startHours":21.538590483817522,"endHours":22.92845150041101,"quality":"auspicious"},{"name":"Kāla","start":"22:56","end":"00:19","startHours":22.92845150041101,"endHours":24.318312517004504,"quality":"inauspicious"},{"name":"Śubha","start":"00:19","end":"01:42","startHours":24.318312517004504,"endHours":25.708173533597996,"quality":"auspicious"},{"name":"Roga","start":"01:42","end":"03:06","startHours":25.708173533597996,"endHours":27.098034550191485,"quality":"inauspicious"},{"name":"Udveg","start":"03:06","end":"04:29","startHours":27.098034550191485,"endHours":28.487895566784978,"quality":"inauspicious"},{"name":"Chala","start":"04:29","end":"05:53","startHours":28.487895566784978,"endHours":29.87775658337847,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:53","end":"06:53","startHours":5.8777565833784715,"endHours":6.8777565833784715,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:53","end":"07:53","startHours":6.8777565833784715,"endHours":7.8777565833784715,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:53","end":"08:53","startHours":7.8777565833784715,"endHours":8.87775658337847,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:53","end":"09:53","startHours":8.87775658337847,"endHours":9.87775658337847,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:53","end":"10:53","startHours":9.87775658337847,"endHours":10.87775658337847,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:53","end":"11:53","startHours":10.87775658337847,"endHours":11.87775658337847,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:53","end":"12:53","startHours":11.87775658337847,"endHours":12.87775658337847,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:53","end":"13:53","startHours":12.87775658337847,"endHours":13.87775658337847,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:53","end":"14:53","startHours":13.87775658337847,"endHours":14.87775658337847,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:53","end":"15:53","startHours":14.87775658337847,"endHours":15.87775658337847,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:53","end":"16:53","startHours":15.87775658337847,"endHours":16.87775658337847,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:53","end":"17:53","startHours":16.87775658337847,"endHours":17.87775658337847,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:53","end":"18:53","startHours":17.87775658337847,"endHours":18.87775658337847,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:53","end":"19:53","startHours":18.87775658337847,"endHours":19.87775658337847,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:53","end":"20:53","startHours":19.87775658337847,"endHours":20.87775658337847,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:53","end":"21:53","startHours":20.87775658337847,"endHours":21.87775658337847,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:53","end":"22:53","startHours":21.87775658337847,"endHours":22.87775658337847,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:53","end":"23:53","startHours":22.87775658337847,"endHours":23.87775658337847,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:53","end":"00:53","startHours":23.87775658337847,"endHours":24.87775658337847,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:53","end":"01:53","startHours":24.87775658337847,"endHours":25.87775658337847,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:53","end":"02:53","startHours":25.87775658337847,"endHours":26.87775658337847,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:53","end":"03:53","startHours":26.87775658337847,"endHours":27.87775658337847,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:53","end":"04:53","startHours":27.87775658337847,"endHours":28.87775658337847,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:53","end":"05:53","startHours":28.87775658337847,"endHours":29.87775658337847,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":10.6744050809435,"eotMinutes":0.2640489797298191,"ayanamsa":26.3715}},"calendars":{"vikram_samvat":2237,"vikram_samvatsara":"Vijaya","saka_samvat":2102,"saka_samvatsara":"Vikrama","bengali_samvat":1587,"malayalam_era":1356,"nanakshahi_year":711,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Aṣṭamī · Vikram 2237 Vijaya · Śaka 2102 Vikrama"},"festivals":[],"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 April 17, 2180 CE · Vṛndāvana · Vidhyamitra","description":"April 17, 2180 CE for Vṛndāvana: Kṛṣṇa Aṣṭamī, sūryodaya 05:53, sūryāsta 18:46.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/2180-04-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/2180-04-17","sa":"https://sa.vidhyamitra.com/city/vrindavan/2180-04-17","hi":"https://hi.vidhyamitra.com/city/vrindavan/2180-04-17","x-default":"https://vidhyamitra.com/city/vrindavan/2180-04-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T06:51:52.774Z","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":"2026-06-02T06:51:52.774Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T06:51:52.774Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}