{"id":"vidhyamitra:city-day:vrindavan:2155-05-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/2155-05-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2155-05-15","date_display":"May 15, 2155 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":2155,"month":5,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508291.770833,"kali_year":5257,"ahargana":1919826.2708,"sun":{"sidereal_longitude":27.6666,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":180.6875,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":153.0209,"elapsed_within_tithi_degrees":9.0209},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":180.6875,"elapsed_within_degrees":7.3542},"yoga":{"number":16,"name":"Siddhi","sum_longitude":208.354},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2155,"month":5,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2508291.770833,"ahargana":1919826.2708,"kali_year":5257,"ayanamsa_lahiri":26.0234,"grahas":{"sun":{"sidereal_longitude":28.033566000000008,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":181.15986599999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false,"latitude":-1.7077},"mars":{"sidereal_longitude":145.02106600000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":1.5772660000000087,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":44.09376600000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":11.27706599999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":123.19836599999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":338.3653,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":158.3653,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"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":2155,"month":5,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508291.770833,"kali_year":5257,"ahargana":1919826.2708,"sun":{"sidereal_longitude":27.6666,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":180.6875,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":153.0209,"elapsed_within_tithi_degrees":9.0209},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":180.6875,"elapsed_within_degrees":7.3542},"yoga":{"number":16,"name":"Siddhi","sum_longitude":208.354},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.708,"elongation":153.021},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.708,"opposition_distance":26.979}},"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":"05:31","sunsetLocal":"19:01","solarNoonLocal":"12:16","dayLengthHours":13.498270471734152,"dayLengthDisplay":"13 Hours 29 Mins 54 Secs","nightLengthDisplay":"10 Hours 30 Mins 06 Secs","moonriseLocal":"16:48","moonsetLocal":"04:09","rahuKala":{"name":"Rāhu Kāla","start":"13:57","end":"15:38","startHours":13.947393793368,"endHours":15.63467760233477,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:31","end":"07:12","startHours":5.5109747485341565,"endHours":7.1982585575009255,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:53","end":"10:34","startHours":8.885542366467694,"endHours":10.572826175434464,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:40","end":"09:07","startHours":8.660571191938793,"endHours":9.110513540996596,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:04","end":"06:26","startHours":6.073402684856413,"endHours":6.433356564102657,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:43","startHours":11.810167635343428,"endHours":12.710052333459037,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:43","end":"04:37","startHours":3.7112053523029362,"endHours":4.611090050418547,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:23","end":"05:31","startHours":4.386118875889644,"endHours":5.5109747485341565,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:25","startHours":14.509821729690257,"endHours":15.409706427805867,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:49","end":"19:13","startHours":18.80924522026831,"endHours":19.209245220268308,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:01","end":"19:34","startHours":19.00924522026831,"endHours":19.571673156590563,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:46","end":"20:31","startHours":18.75924522026831,"endHours":20.50924522026831,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:43","startHours":23.810167635343426,"endHours":24.71005233345904,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:31","end":"07:12","startHours":5.5109747485341565,"endHours":7.1982585575009255,"quality":"auspicious"},{"name":"Roga","start":"07:12","end":"08:53","startHours":7.1982585575009255,"endHours":8.885542366467694,"quality":"inauspicious"},{"name":"Udveg","start":"08:53","end":"10:34","startHours":8.885542366467694,"endHours":10.572826175434464,"quality":"inauspicious"},{"name":"Chala","start":"10:34","end":"12:16","startHours":10.572826175434464,"endHours":12.260109984401232,"quality":"neutral"},{"name":"Labha","start":"12:16","end":"13:57","startHours":12.260109984401232,"endHours":13.947393793368,"quality":"auspicious"},{"name":"Amṛta","start":"13:57","end":"15:38","startHours":13.947393793368,"endHours":15.63467760233477,"quality":"auspicious"},{"name":"Kāla","start":"15:38","end":"17:19","startHours":15.63467760233477,"endHours":17.32196141130154,"quality":"inauspicious"},{"name":"Śubha","start":"17:19","end":"19:01","startHours":17.32196141130154,"endHours":19.00924522026831,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:01","end":"20:19","startHours":19.00924522026831,"endHours":20.32196141130154,"quality":"auspicious"},{"name":"Kāla","start":"20:19","end":"21:38","startHours":20.32196141130154,"endHours":21.63467760233477,"quality":"inauspicious"},{"name":"Śubha","start":"21:38","end":"22:57","startHours":21.63467760233477,"endHours":22.947393793368,"quality":"auspicious"},{"name":"Roga","start":"22:57","end":"00:16","startHours":22.947393793368,"endHours":24.260109984401232,"quality":"inauspicious"},{"name":"Udveg","start":"00:16","end":"01:34","startHours":24.260109984401232,"endHours":25.572826175434464,"quality":"inauspicious"},{"name":"Chala","start":"01:34","end":"02:53","startHours":25.572826175434464,"endHours":26.885542366467696,"quality":"neutral"},{"name":"Labha","start":"02:53","end":"04:12","startHours":26.885542366467696,"endHours":28.198258557500925,"quality":"auspicious"},{"name":"Amṛta","start":"04:12","end":"05:31","startHours":28.198258557500925,"endHours":29.510974748534156,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:31","end":"06:31","startHours":5.5109747485341565,"endHours":6.5109747485341565,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:31","end":"07:31","startHours":6.5109747485341565,"endHours":7.5109747485341565,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:31","end":"08:31","startHours":7.5109747485341565,"endHours":8.510974748534156,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:31","end":"09:31","startHours":8.510974748534156,"endHours":9.510974748534156,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:31","end":"10:31","startHours":9.510974748534156,"endHours":10.510974748534156,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:31","end":"11:31","startHours":10.510974748534156,"endHours":11.510974748534156,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:31","end":"12:31","startHours":11.510974748534156,"endHours":12.510974748534156,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:31","end":"13:31","startHours":12.510974748534156,"endHours":13.510974748534156,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:31","end":"14:31","startHours":13.510974748534156,"endHours":14.510974748534156,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:31","end":"15:31","startHours":14.510974748534156,"endHours":15.510974748534156,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:31","end":"16:31","startHours":15.510974748534156,"endHours":16.510974748534156,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:31","end":"17:31","startHours":16.510974748534156,"endHours":17.510974748534156,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:31","end":"18:31","startHours":17.510974748534156,"endHours":18.510974748534156,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:31","end":"19:31","startHours":18.510974748534156,"endHours":19.510974748534156,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:31","end":"20:31","startHours":19.510974748534156,"endHours":20.510974748534156,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:31","end":"21:31","startHours":20.510974748534156,"endHours":21.510974748534156,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:31","end":"22:31","startHours":21.510974748534156,"endHours":22.510974748534156,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:31","end":"23:31","startHours":22.510974748534156,"endHours":23.510974748534156,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:31","end":"00:31","startHours":23.510974748534156,"endHours":24.510974748534156,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:31","end":"01:31","startHours":24.510974748534156,"endHours":25.510974748534156,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:31","end":"02:31","startHours":25.510974748534156,"endHours":26.510974748534156,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:31","end":"03:31","startHours":26.510974748534156,"endHours":27.510974748534156,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:31","end":"04:31","startHours":27.510974748534156,"endHours":28.510974748534156,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:31","end":"05:31","startHours":28.510974748534156,"endHours":29.510974748534156,"planetary_lord":"Moon"}],"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","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North","rahuVasa":"North-West","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":18.784197811942864,"eotMinutes":3.7562009359260493,"ayanamsa":26.0234}},"calendars":{"vikram_samvat":2212,"vikram_samvatsara":"Vibhava","saka_samvat":2077,"saka_samvatsara":"Rākṣasa","bengali_samvat":1562,"malayalam_era":1331,"nanakshahi_year":686,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","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 Śukla Trayodaśī · Vikram 2212 Vibhava · Śaka 2077 Rākṣasa"},"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":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 May 15, 2155 CE · Vṛndāvana · Vidhyamitra","description":"May 15, 2155 CE for Vṛndāvana: Śukla Trayodaśī, sūryodaya 05:31, sūryāsta 19:01.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/2155-05-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/2155-05-15","sa":"https://sa.vidhyamitra.com/city/vrindavan/2155-05-15","hi":"https://hi.vidhyamitra.com/city/vrindavan/2155-05-15","x-default":"https://vidhyamitra.com/city/vrindavan/2155-05-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T12:29:37.144Z","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":"2026-05-31T12:29:37.144Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T12:29:37.144Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}