{"id":"vidhyamitra:city-day:lucknow:2155-05-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/lucknow/2155-05-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2155-05-20","date_display":"May 20, 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":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508296.770833,"kali_year":5257,"ahargana":1919831.2708,"sun":{"sidereal_longitude":32.4593,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":251.0669,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":218.6076,"elapsed_within_tithi_degrees":2.6076},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":251.0669,"elapsed_within_degrees":11.0669},"yoga":{"number":22,"name":"Sādhya","sum_longitude":283.5261},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2508296.770833,"ahargana":1919831.2708,"kali_year":5257,"ayanamsa_lahiri":26.0235,"grahas":{"sun":{"sidereal_longitude":32.856674999999996,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":254.21067500000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false,"latitude":-4.494},"mars":{"sidereal_longitude":145.80737499999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":5.123874999999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":45.230975,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":17.408974999999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":123.334675,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":338.1004,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":158.1004,"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":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508296.770833,"kali_year":5257,"ahargana":1919831.2708,"sun":{"sidereal_longitude":32.4593,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":251.0669,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":218.6076,"elapsed_within_tithi_degrees":2.6076},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":251.0669,"elapsed_within_degrees":11.0669},"yoga":{"number":22,"name":"Sādhya","sum_longitude":283.5261},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.494,"elongation":141.392},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.494,"opposition_distance":38.608}},"eclipse_window_40days":[]},"city":{"slug":"lucknow","name":"Lucknow, Uttar Pradesh","lat":26.8467,"lon":80.9462,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"lucknow","name":"Lucknow, Uttar Pradesh","lat":26.8467,"lon":80.9462,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"sunriseLocal":"05:16","sunsetLocal":"18:49","solarNoonLocal":"12:03","dayLengthHours":13.543149262489163,"dayLengthDisplay":"13 Hours 32 Mins 35 Secs","nightLengthDisplay":"10 Hours 27 Mins 25 Secs","moonriseLocal":"21:35","moonsetLocal":"08:01","rahuKala":{"name":"Rāhu Kāla","start":"15:26","end":"17:07","startHours":15.42940209868587,"endHours":17.122295756497014,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:39","end":"10:21","startHours":8.657827467441289,"endHours":10.350721125252434,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:03","end":"13:44","startHours":12.043614783063578,"endHours":13.736508440874726,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:26","end":"08:53","startHours":8.432108313066468,"endHours":8.883546621816109,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:50","end":"06:12","startHours":5.836338037756047,"endHours":6.197488684755758,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:36","end":"12:30","startHours":11.592176474313941,"endHours":12.495053091813219,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:28","end":"04:22","startHours":3.466286916820443,"endHours":4.36916353431972,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:09","end":"05:16","startHours":4.143444379944901,"endHours":5.272040151818998,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:18","end":"15:12","startHours":14.300806326811774,"endHours":15.203682944311051,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:37","end":"19:01","startHours":18.615189414308162,"endHours":19.01518941430816,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:49","end":"19:23","startHours":18.81518941430816,"endHours":19.37948730024521,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:34","end":"20:19","startHours":18.56518941430816,"endHours":20.31518941430816,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:36","end":"00:30","startHours":23.592176474313945,"endHours":24.49505309181322,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:16","end":"06:58","startHours":5.272040151818998,"endHours":6.964933809630143,"quality":"inauspicious"},{"name":"Udveg","start":"06:58","end":"08:39","startHours":6.964933809630143,"endHours":8.657827467441289,"quality":"inauspicious"},{"name":"Chala","start":"08:39","end":"10:21","startHours":8.657827467441289,"endHours":10.350721125252434,"quality":"neutral"},{"name":"Labha","start":"10:21","end":"12:03","startHours":10.350721125252434,"endHours":12.043614783063578,"quality":"auspicious"},{"name":"Amṛta","start":"12:03","end":"13:44","startHours":12.043614783063578,"endHours":13.736508440874726,"quality":"auspicious"},{"name":"Kāla","start":"13:44","end":"15:26","startHours":13.736508440874726,"endHours":15.42940209868587,"quality":"inauspicious"},{"name":"Śubha","start":"15:26","end":"17:07","startHours":15.42940209868587,"endHours":17.122295756497014,"quality":"auspicious"},{"name":"Roga","start":"17:07","end":"18:49","startHours":17.122295756497014,"endHours":18.81518941430816,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:49","end":"20:07","startHours":18.81518941430816,"endHours":20.122295756497017,"quality":"inauspicious"},{"name":"Śubha","start":"20:07","end":"21:26","startHours":20.122295756497017,"endHours":21.42940209868587,"quality":"auspicious"},{"name":"Roga","start":"21:26","end":"22:44","startHours":21.42940209868587,"endHours":22.736508440874726,"quality":"inauspicious"},{"name":"Udveg","start":"22:44","end":"00:03","startHours":22.736508440874726,"endHours":24.043614783063582,"quality":"inauspicious"},{"name":"Chala","start":"00:03","end":"01:21","startHours":24.043614783063582,"endHours":25.350721125252434,"quality":"neutral"},{"name":"Labha","start":"01:21","end":"02:39","startHours":25.350721125252434,"endHours":26.65782746744129,"quality":"auspicious"},{"name":"Amṛta","start":"02:39","end":"03:58","startHours":26.65782746744129,"endHours":27.964933809630146,"quality":"auspicious"},{"name":"Kāla","start":"03:58","end":"05:16","startHours":27.964933809630146,"endHours":29.272040151819,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:16","end":"06:16","startHours":5.272040151818998,"endHours":6.272040151818998,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:16","end":"07:16","startHours":6.272040151818998,"endHours":7.272040151818998,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:16","end":"08:16","startHours":7.272040151818998,"endHours":8.272040151818999,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:16","end":"09:16","startHours":8.272040151818999,"endHours":9.272040151818999,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:16","end":"10:16","startHours":9.272040151818999,"endHours":10.272040151818999,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:16","end":"11:16","startHours":10.272040151818999,"endHours":11.272040151818999,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:16","end":"12:16","startHours":11.272040151818999,"endHours":12.272040151818999,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:16","end":"13:16","startHours":12.272040151818999,"endHours":13.272040151818999,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:16","end":"14:16","startHours":13.272040151818999,"endHours":14.272040151818999,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:16","end":"15:16","startHours":14.272040151818999,"endHours":15.272040151818999,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:16","end":"16:16","startHours":15.272040151818999,"endHours":16.272040151819,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:16","end":"17:16","startHours":16.272040151819,"endHours":17.272040151819,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:16","end":"18:16","startHours":17.272040151819,"endHours":18.272040151819,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:16","end":"19:16","startHours":18.272040151819,"endHours":19.272040151819,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:16","end":"20:16","startHours":19.272040151819,"endHours":20.272040151819,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:16","end":"21:16","startHours":20.272040151819,"endHours":21.272040151819,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:16","end":"22:16","startHours":21.272040151819,"endHours":22.272040151819,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:16","end":"23:16","startHours":22.272040151819,"endHours":23.272040151819,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:16","end":"00:16","startHours":23.272040151819,"endHours":24.272040151819,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:16","end":"01:16","startHours":24.272040151819,"endHours":25.272040151819,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:16","end":"02:16","startHours":25.272040151819,"endHours":26.272040151819,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:16","end":"03:16","startHours":26.272040151819,"endHours":27.272040151819,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:16","end":"04:16","startHours":27.272040151819,"endHours":28.272040151819,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:16","end":"05:16","startHours":28.272040151819,"endHours":29.272040151819,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":19.906980727184678,"eotMinutes":3.5983130161851964,"ayanamsa":26.0235}},"calendars":{"vikram_samvat":2212,"vikram_samvatsara":"Vibhava","saka_samvat":2077,"saka_samvatsara":"Rākṣasa","bengali_samvat":1562,"malayalam_era":1331,"nanakshahi_year":686,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Caturthī · Vikram 2212 Vibhava · Śaka 2077 Rākṣasa"},"festivals":[{"id":"angarika-chaturthi","name":"Aṅgāraka Caturthī (Tuesday Caturthī)","name_sanskrit":"अङ्गारक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa + Maṅgala","significance":"Tuesday-Caturthī (rare); supremely auspicious for Maṅgala-doṣa-nivāraṇa.","vrata":true,"detection":{"any_of":[{"tithi_number":4,"vara_name":"Maṅgalavāra (Tuesday)"},{"tithi_number":19,"vara_name":"Maṅgalavāra (Tuesday)"}]},"precedence":3},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"lucknow"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga May 20, 2155 CE · Lucknow, Uttar Pradesh · Vidhyamitra","description":"May 20, 2155 CE for Lucknow, Uttar Pradesh: Kṛṣṇa Caturthī, sūryodaya 05:16, sūryāsta 18:49.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/lucknow/2155-05-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/lucknow/2155-05-20","sa":"https://sa.vidhyamitra.com/city/lucknow/2155-05-20","hi":"https://hi.vidhyamitra.com/city/lucknow/2155-05-20","x-default":"https://vidhyamitra.com/city/lucknow/2155-05-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T00:42:20.280Z","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":"2026-06-02T00:42:20.280Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T00:42:20.280Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}