{"id":"vidhyamitra:city-day:howrah:2129-04-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/howrah/2129-04-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2129-04-13","date_display":"April 13, 2129 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":2129,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2498763.770833,"kali_year":5230,"ahargana":1910298.2708,"sun":{"sidereal_longitude":357.378,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":283.1077,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":285.7297,"elapsed_within_tithi_degrees":9.7297},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1,"moon_longitude":283.1077,"elapsed_within_degrees":3.1077},"yoga":{"number":22,"name":"Sādhya","sum_longitude":280.4858},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2129,"month":4,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2498763.770833,"ahargana":1910298.2708,"kali_year":5230,"ayanamsa_lahiri":25.6589,"grahas":{"sun":{"sidereal_longitude":357.536206,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":282.31850600000007,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false,"latitude":1.5448},"mars":{"sidereal_longitude":264.94350600000007,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":3.4710059999999885,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":334.858006,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":311.1201060000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":171.00550599999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":123.2046,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":303.2046,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":2129,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2498763.770833,"kali_year":5230,"ahargana":1910298.2708,"sun":{"sidereal_longitude":357.378,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":283.1077,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":285.7297,"elapsed_within_tithi_degrees":9.7297},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1,"moon_longitude":283.1077,"elapsed_within_degrees":3.1077},"yoga":{"number":22,"name":"Sādhya","sum_longitude":280.4858},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.545,"elongation":74.27},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.545,"opposition_distance":105.73}},"eclipse_window_40days":[]},"city":{"slug":"howrah","name":"Howrah, West Bengal","lat":22.5958,"lon":88.2636,"tz_offset_hours":5.5,"state":"West Bengal","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"howrah","name":"Howrah, West Bengal","lat":22.5958,"lon":88.2636,"tz_offset_hours":5.5,"state":"West Bengal","country":"IN","tier":"tier-1"},"sunriseLocal":"05:19","sunsetLocal":"17:57","solarNoonLocal":"11:38","dayLengthHours":12.62677936448539,"dayLengthDisplay":"12 Hours 37 Mins 36 Secs","nightLengthDisplay":"11 Hours 22 Mins 24 Secs","moonriseLocal":"01:06","moonsetLocal":"12:08","rahuKala":{"name":"Rāhu Kāla","start":"11:38","end":"13:12","startHours":11.628590180495072,"endHours":13.206937601055746,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:54","end":"08:28","startHours":6.89354791881305,"endHours":8.471895339373724,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:03","end":"11:38","startHours":10.050242759934399,"endHours":11.628590180495072,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:16","end":"08:41","startHours":8.261449016632302,"endHours":8.682341662115148,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:50","end":"06:11","startHours":5.841316305105935,"endHours":6.178030421492212,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:12","end":"12:03","startHours":11.207697535012226,"endHours":12.049482825977918,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:38","end":"04:28","startHours":3.6316299163209917,"endHours":4.473415207286685,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:16","end":"05:19","startHours":4.262968884545261,"endHours":5.315200498252377,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:44","end":"14:34","startHours":13.733053407909303,"endHours":14.574838698874995,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:45","end":"18:09","startHours":17.741979862737768,"endHours":18.141979862737767,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:57","end":"18:28","startHours":17.941979862737767,"endHours":18.468095669591325,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:42","end":"19:27","startHours":17.691979862737767,"endHours":19.441979862737767,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:12","end":"00:03","startHours":23.207697535012226,"endHours":24.049482825977922,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:19","end":"06:54","startHours":5.315200498252377,"endHours":6.89354791881305,"quality":"auspicious"},{"name":"Amṛta","start":"06:54","end":"08:28","startHours":6.89354791881305,"endHours":8.471895339373724,"quality":"auspicious"},{"name":"Kāla","start":"08:28","end":"10:03","startHours":8.471895339373724,"endHours":10.050242759934399,"quality":"inauspicious"},{"name":"Śubha","start":"10:03","end":"11:38","startHours":10.050242759934399,"endHours":11.628590180495072,"quality":"auspicious"},{"name":"Roga","start":"11:38","end":"13:12","startHours":11.628590180495072,"endHours":13.206937601055746,"quality":"inauspicious"},{"name":"Udveg","start":"13:12","end":"14:47","startHours":13.206937601055746,"endHours":14.78528502161642,"quality":"inauspicious"},{"name":"Chala","start":"14:47","end":"16:22","startHours":14.78528502161642,"endHours":16.363632442177092,"quality":"neutral"},{"name":"Labha","start":"16:22","end":"17:57","startHours":16.363632442177092,"endHours":17.941979862737767,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:57","end":"19:22","startHours":17.941979862737767,"endHours":19.363632442177092,"quality":"inauspicious"},{"name":"Chala","start":"19:22","end":"20:47","startHours":19.363632442177092,"endHours":20.78528502161642,"quality":"neutral"},{"name":"Labha","start":"20:47","end":"22:12","startHours":20.78528502161642,"endHours":22.206937601055746,"quality":"auspicious"},{"name":"Amṛta","start":"22:12","end":"23:38","startHours":22.206937601055746,"endHours":23.628590180495074,"quality":"auspicious"},{"name":"Kāla","start":"23:38","end":"01:03","startHours":23.628590180495074,"endHours":25.0502427599344,"quality":"inauspicious"},{"name":"Śubha","start":"01:03","end":"02:28","startHours":25.0502427599344,"endHours":26.471895339373724,"quality":"auspicious"},{"name":"Roga","start":"02:28","end":"03:54","startHours":26.471895339373724,"endHours":27.89354791881305,"quality":"inauspicious"},{"name":"Udveg","start":"03:54","end":"05:19","startHours":27.89354791881305,"endHours":29.315200498252377,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:19","end":"06:19","startHours":5.315200498252377,"endHours":6.315200498252377,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:19","end":"07:19","startHours":6.315200498252377,"endHours":7.315200498252377,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:19","end":"08:19","startHours":7.315200498252377,"endHours":8.315200498252377,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:19","end":"09:19","startHours":8.315200498252377,"endHours":9.315200498252377,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:19","end":"10:19","startHours":9.315200498252377,"endHours":10.315200498252377,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:19","end":"11:19","startHours":10.315200498252377,"endHours":11.315200498252377,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:19","end":"12:19","startHours":11.315200498252377,"endHours":12.315200498252377,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:19","end":"13:19","startHours":12.315200498252377,"endHours":13.315200498252377,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:19","end":"14:19","startHours":13.315200498252377,"endHours":14.315200498252377,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:19","end":"15:19","startHours":14.315200498252377,"endHours":15.315200498252377,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:19","end":"16:19","startHours":15.315200498252377,"endHours":16.315200498252377,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:19","end":"17:19","startHours":16.315200498252377,"endHours":17.315200498252377,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:19","end":"18:19","startHours":17.315200498252377,"endHours":18.315200498252377,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:19","end":"19:19","startHours":18.315200498252377,"endHours":19.315200498252377,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:19","end":"20:19","startHours":19.315200498252377,"endHours":20.315200498252377,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:19","end":"21:19","startHours":20.315200498252377,"endHours":21.315200498252377,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:19","end":"22:19","startHours":21.315200498252377,"endHours":22.315200498252377,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:19","end":"23:19","startHours":22.315200498252377,"endHours":23.315200498252377,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:19","end":"00:19","startHours":23.315200498252377,"endHours":24.315200498252377,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:19","end":"01:19","startHours":24.315200498252377,"endHours":25.315200498252377,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:19","end":"02:19","startHours":25.315200498252377,"endHours":26.315200498252377,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:19","end":"03:19","startHours":26.315200498252377,"endHours":27.315200498252377,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:19","end":"04:19","startHours":27.315200498252377,"endHours":28.315200498252377,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:19","end":"05:19","startHours":28.315200498252377,"endHours":29.315200498252377,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"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":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"South-West","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":9.012634444367874,"eotMinutes":-0.7698108297043191,"ayanamsa":25.6589}},"calendars":{"vikram_samvat":2186,"vikram_samvatsara":"Śubhakṛt","saka_samvat":2051,"saka_samvatsara":"Virodhi","bengali_samvat":1536,"malayalam_era":1305,"nanakshahi_year":660,"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":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Navamī · Vikram 2186 Śubhakṛt · Śaka 2051 Virodhi"},"festivals":[],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"howrah"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 13, 2129 CE · Howrah, West Bengal · Vidhyamitra","description":"April 13, 2129 CE for Howrah, West Bengal: Kṛṣṇa Navamī, sūryodaya 05:19, sūryāsta 17:57.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/howrah/2129-04-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/howrah/2129-04-13","sa":"https://sa.vidhyamitra.com/city/howrah/2129-04-13","hi":"https://hi.vidhyamitra.com/city/howrah/2129-04-13","x-default":"https://vidhyamitra.com/city/howrah/2129-04-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T16:37:53.716Z","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":"2026-06-01T16:37:53.716Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T16:37:53.716Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}