{"id":"vidhyamitra:city-day:thane:2103-04-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/2103-04-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2103-04-13","date_display":"April 13, 2103 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":2103,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489266.770833,"kali_year":5204,"ahargana":1900801.2708,"sun":{"sidereal_longitude":357.1116,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":71.2819,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":74.1704,"elapsed_within_tithi_degrees":2.1704},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":71.2819,"elapsed_within_degrees":4.6153},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":68.3935},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2103,"month":4,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2489266.770833,"ahargana":1900801.2708,"kali_year":5204,"ayanamsa_lahiri":25.2957,"grahas":{"sun":{"sidereal_longitude":357.209161,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":72.38506100000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false,"latitude":1.1726},"mars":{"sidereal_longitude":319.76406099999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":354.697661,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":269.615861,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":38.919760999999994,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":214.782461,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":266.4014,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":86.4014,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"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":2103,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489266.770833,"kali_year":5204,"ahargana":1900801.2708,"sun":{"sidereal_longitude":357.1116,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":71.2819,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":74.1704,"elapsed_within_tithi_degrees":2.1704},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":71.2819,"elapsed_within_degrees":4.6153},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":68.3935},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.173,"elongation":74.17},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.173,"opposition_distance":105.83}},"eclipse_window_40days":[]},"city":{"slug":"thane","name":"Thane, Maharashtra","lat":19.2183,"lon":72.9781,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"thane","name":"Thane, Maharashtra","lat":19.2183,"lon":72.9781,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"sunriseLocal":"06:23","sunsetLocal":"18:55","solarNoonLocal":"12:39","dayLengthHours":12.529627157185077,"dayLengthDisplay":"12 Hours 31 Mins 47 Secs","nightLengthDisplay":"11 Hours 28 Mins 13 Secs","moonriseLocal":"11:02","moonsetLocal":"00:17","rahuKala":{"name":"Rāhu Kāla","start":"11:05","end":"12:39","startHours":11.081420119180272,"endHours":12.647623513828407,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:47","end":"17:21","startHours":15.780030303124676,"endHours":17.34623369777281,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:57","end":"09:31","startHours":7.949013329884002,"endHours":9.515216724532136,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:18","end":"09:43","startHours":9.30638960524572,"endHours":9.724043843818555,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:54","end":"07:14","startHours":6.9048777334519125,"endHours":7.239001124310181,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:14","end":"13:04","startHours":12.22996927525557,"endHours":13.065277752401244,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:43","end":"05:33","startHours":4.712192980944524,"endHours":5.547501458090196,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:20","end":"06:23","startHours":5.338674338803777,"endHours":6.382809935235867,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:34","startHours":14.735894706692585,"endHours":15.571203183838257,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:43","end":"19:07","startHours":18.712437092420945,"endHours":19.112437092420944,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:55","end":"19:26","startHours":18.912437092420944,"endHours":19.43450489063699,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:40","end":"20:25","startHours":18.662437092420944,"endHours":20.412437092420944,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:14","end":"01:04","startHours":24.22996927525557,"endHours":25.065277752401244,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:23","end":"07:57","startHours":6.382809935235867,"endHours":7.949013329884002,"quality":"neutral"},{"name":"Labha","start":"07:57","end":"09:31","startHours":7.949013329884002,"endHours":9.515216724532136,"quality":"auspicious"},{"name":"Amṛta","start":"09:31","end":"11:05","startHours":9.515216724532136,"endHours":11.081420119180272,"quality":"auspicious"},{"name":"Kāla","start":"11:05","end":"12:39","startHours":11.081420119180272,"endHours":12.647623513828407,"quality":"inauspicious"},{"name":"Śubha","start":"12:39","end":"14:13","startHours":12.647623513828407,"endHours":14.213826908476541,"quality":"auspicious"},{"name":"Roga","start":"14:13","end":"15:47","startHours":14.213826908476541,"endHours":15.780030303124676,"quality":"inauspicious"},{"name":"Udveg","start":"15:47","end":"17:21","startHours":15.780030303124676,"endHours":17.34623369777281,"quality":"inauspicious"},{"name":"Chala","start":"17:21","end":"18:55","startHours":17.34623369777281,"endHours":18.912437092420944,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:55","end":"20:21","startHours":18.912437092420944,"endHours":20.34623369777281,"quality":"inauspicious"},{"name":"Udveg","start":"20:21","end":"21:47","startHours":20.34623369777281,"endHours":21.780030303124676,"quality":"inauspicious"},{"name":"Chala","start":"21:47","end":"23:13","startHours":21.780030303124676,"endHours":23.21382690847654,"quality":"neutral"},{"name":"Labha","start":"23:13","end":"00:39","startHours":23.21382690847654,"endHours":24.647623513828407,"quality":"auspicious"},{"name":"Amṛta","start":"00:39","end":"02:05","startHours":24.647623513828407,"endHours":26.081420119180272,"quality":"auspicious"},{"name":"Kāla","start":"02:05","end":"03:31","startHours":26.081420119180272,"endHours":27.515216724532138,"quality":"inauspicious"},{"name":"Śubha","start":"03:31","end":"04:57","startHours":27.515216724532138,"endHours":28.949013329884004,"quality":"auspicious"},{"name":"Roga","start":"04:57","end":"06:23","startHours":28.949013329884004,"endHours":30.38280993523587,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:23","end":"07:23","startHours":6.382809935235867,"endHours":7.382809935235867,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:23","end":"08:23","startHours":7.382809935235867,"endHours":8.382809935235867,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:23","end":"09:23","startHours":8.382809935235867,"endHours":9.382809935235867,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:23","end":"10:23","startHours":9.382809935235867,"endHours":10.382809935235867,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:23","end":"11:23","startHours":10.382809935235867,"endHours":11.382809935235867,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:23","end":"12:23","startHours":11.382809935235867,"endHours":12.382809935235867,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:23","end":"13:23","startHours":12.382809935235867,"endHours":13.382809935235867,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:23","end":"14:23","startHours":13.382809935235867,"endHours":14.382809935235867,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:23","end":"15:23","startHours":14.382809935235867,"endHours":15.382809935235867,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:23","end":"16:23","startHours":15.382809935235867,"endHours":16.38280993523587,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:23","end":"17:23","startHours":16.38280993523587,"endHours":17.38280993523587,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:23","end":"18:23","startHours":17.38280993523587,"endHours":18.38280993523587,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:23","end":"19:23","startHours":18.38280993523587,"endHours":19.38280993523587,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:23","end":"20:23","startHours":19.38280993523587,"endHours":20.38280993523587,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:23","end":"21:23","startHours":20.38280993523587,"endHours":21.38280993523587,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:23","end":"22:23","startHours":21.38280993523587,"endHours":22.38280993523587,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:23","end":"23:23","startHours":22.38280993523587,"endHours":23.38280993523587,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:23","end":"00:23","startHours":23.38280993523587,"endHours":24.38280993523587,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:23","end":"01:23","startHours":24.38280993523587,"endHours":25.38280993523587,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:23","end":"02:23","startHours":25.38280993523587,"endHours":26.38280993523587,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:23","end":"03:23","startHours":26.38280993523587,"endHours":27.38280993523587,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:23","end":"04:23","startHours":27.38280993523587,"endHours":28.38280993523587,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:23","end":"05:23","startHours":28.38280993523587,"endHours":29.38280993523587,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:23","end":"06:23","startHours":29.38280993523587,"endHours":30.38280993523587,"planetary_lord":"Mars"}],"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","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"South-East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":8.75657459747391,"eotMinutes":-0.7698108297043191,"ayanamsa":25.2957}},"calendars":{"vikram_samvat":2160,"vikram_samvatsara":"Dhātṛ","saka_samvat":2025,"saka_samvatsara":"Rudhirodgāri","bengali_samvat":1510,"malayalam_era":1279,"nanakshahi_year":634,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","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":"Caitra Śukla Saptamī · Vikram 2160 Dhātṛ · Śaka 2025 Rudhirodgāri"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"thane"},"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, 2103 CE · Thane, Maharashtra · Vidhyamitra","description":"April 13, 2103 CE for Thane, Maharashtra: Śukla Saptamī, sūryodaya 06:23, sūryāsta 18:55.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/2103-04-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/2103-04-13","sa":"https://sa.vidhyamitra.com/city/thane/2103-04-13","hi":"https://hi.vidhyamitra.com/city/thane/2103-04-13","x-default":"https://vidhyamitra.com/city/thane/2103-04-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T15:50:17.707Z","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":"2026-05-31T15:50:17.707Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T15:50:17.707Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}