{"id":"vidhyamitra:city-day:thane:1877-08-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/1877-08-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1877-08-20","date_display":"August 20, 1877 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":1877,"month":8,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2406851.770833,"kali_year":4979,"ahargana":1818386.2708,"sun":{"sidereal_longitude":124.5859,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":259.8554,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":135.2696,"elapsed_within_tithi_degrees":3.2696},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2,"moon_longitude":259.8554,"elapsed_within_degrees":6.5221},"yoga":{"number":2,"name":"Prīti","sum_longitude":24.4413},"karana":{"half_tithi_index":22,"name":"Bava"},"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":1877,"month":8,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2406851.770833,"ahargana":1818386.2708,"kali_year":4979,"ayanamsa_lahiri":22.1437,"grahas":{"sun":{"sidereal_longitude":124.93632000000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":262.21612000000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false,"latitude":-3.6062},"mars":{"sidereal_longitude":327.08122000000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":true},"mercury":{"sidereal_longitude":151.26682,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":243.14851999999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":true},"venus":{"sidereal_longitude":154.70551999999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":327.41782,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":313.1447,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":133.1447,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":1877,"month":8,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2406851.770833,"kali_year":4979,"ahargana":1818386.2708,"sun":{"sidereal_longitude":124.5859,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":259.8554,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":135.2696,"elapsed_within_tithi_degrees":3.2696},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2,"moon_longitude":259.8554,"elapsed_within_degrees":6.5221},"yoga":{"number":2,"name":"Prīti","sum_longitude":24.4413},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.606,"elongation":135.27},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.606,"opposition_distance":44.73}},"eclipse_window_40days":[{"offset_days":4,"type":"lunar","occurs":true,"moon_latitude":-0.222,"opposition_distance":1.679}]},"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":"06:20","sunsetLocal":"19:02","solarNoonLocal":"12:41","dayLengthHours":12.711064228474253,"dayLengthDisplay":"12 Hours 42 Mins 40 Secs","nightLengthDisplay":"11 Hours 17 Mins 20 Secs","moonriseLocal":"16:21","moonsetLocal":"03:19","rahuKala":{"name":"Rāhu Kāla","start":"07:55","end":"09:30","startHours":7.918977762830993,"endHours":9.507860791390275,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:06","end":"12:41","startHours":11.096743819949555,"endHours":12.685626848508837,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:16","end":"15:52","startHours":14.27450987706812,"endHours":15.8633929056274,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:18","end":"09:43","startHours":9.296009720915704,"endHours":9.719711861864845,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:52","end":"07:12","startHours":6.859722410458138,"endHours":7.198684123217451,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:16","end":"13:07","startHours":12.261924707559695,"endHours":13.10932898945798,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:38","end":"05:29","startHours":4.635286170475144,"endHours":5.4826904523734274,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:16","end":"06:20","startHours":5.270839381898856,"endHours":6.330094734271711,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:48","end":"15:39","startHours":14.804137553254547,"endHours":15.65154183515283,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:50","end":"19:14","startHours":18.841158962745965,"endHours":19.241158962745963,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:02","end":"19:34","startHours":19.041158962745964,"endHours":19.57078663893239,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:47","end":"20:32","startHours":18.791158962745964,"endHours":20.541158962745964,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:16","end":"01:07","startHours":24.261924707559697,"endHours":25.109328989457982,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:20","end":"07:55","startHours":6.330094734271711,"endHours":7.918977762830993,"quality":"auspicious"},{"name":"Kāla","start":"07:55","end":"09:30","startHours":7.918977762830993,"endHours":9.507860791390275,"quality":"inauspicious"},{"name":"Śubha","start":"09:30","end":"11:06","startHours":9.507860791390275,"endHours":11.096743819949555,"quality":"auspicious"},{"name":"Roga","start":"11:06","end":"12:41","startHours":11.096743819949555,"endHours":12.685626848508837,"quality":"inauspicious"},{"name":"Udveg","start":"12:41","end":"14:16","startHours":12.685626848508837,"endHours":14.27450987706812,"quality":"inauspicious"},{"name":"Chala","start":"14:16","end":"15:52","startHours":14.27450987706812,"endHours":15.8633929056274,"quality":"neutral"},{"name":"Labha","start":"15:52","end":"17:27","startHours":15.8633929056274,"endHours":17.45227593418668,"quality":"auspicious"},{"name":"Amṛta","start":"17:27","end":"19:02","startHours":17.45227593418668,"endHours":19.041158962745964,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:02","end":"20:27","startHours":19.041158962745964,"endHours":20.452275934186684,"quality":"neutral"},{"name":"Labha","start":"20:27","end":"21:52","startHours":20.452275934186684,"endHours":21.8633929056274,"quality":"auspicious"},{"name":"Amṛta","start":"21:52","end":"23:16","startHours":21.8633929056274,"endHours":23.27450987706812,"quality":"auspicious"},{"name":"Kāla","start":"23:16","end":"00:41","startHours":23.27450987706812,"endHours":24.68562684850884,"quality":"inauspicious"},{"name":"Śubha","start":"00:41","end":"02:06","startHours":24.68562684850884,"endHours":26.096743819949555,"quality":"auspicious"},{"name":"Roga","start":"02:06","end":"03:30","startHours":26.096743819949555,"endHours":27.507860791390275,"quality":"inauspicious"},{"name":"Udveg","start":"03:30","end":"04:55","startHours":27.507860791390275,"endHours":28.91897776283099,"quality":"inauspicious"},{"name":"Chala","start":"04:55","end":"06:20","startHours":28.91897776283099,"endHours":30.33009473427171,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:20","end":"07:20","startHours":6.330094734271711,"endHours":7.330094734271711,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:20","end":"08:20","startHours":7.330094734271711,"endHours":8.33009473427171,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:20","end":"09:20","startHours":8.33009473427171,"endHours":9.33009473427171,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:20","end":"10:20","startHours":9.33009473427171,"endHours":10.33009473427171,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:20","end":"11:20","startHours":10.33009473427171,"endHours":11.33009473427171,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:20","end":"12:20","startHours":11.33009473427171,"endHours":12.33009473427171,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:20","end":"13:20","startHours":12.33009473427171,"endHours":13.33009473427171,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:20","end":"14:20","startHours":13.33009473427171,"endHours":14.33009473427171,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:20","end":"15:20","startHours":14.33009473427171,"endHours":15.33009473427171,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:20","end":"16:20","startHours":15.33009473427171,"endHours":16.33009473427171,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:20","end":"17:20","startHours":16.33009473427171,"endHours":17.33009473427171,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:20","end":"18:20","startHours":17.33009473427171,"endHours":18.33009473427171,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:20","end":"19:20","startHours":18.33009473427171,"endHours":19.33009473427171,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:20","end":"20:20","startHours":19.33009473427171,"endHours":20.33009473427171,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:20","end":"21:20","startHours":20.33009473427171,"endHours":21.33009473427171,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:20","end":"22:20","startHours":21.33009473427171,"endHours":22.33009473427171,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:20","end":"23:20","startHours":22.33009473427171,"endHours":23.33009473427171,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:20","end":"00:20","startHours":23.33009473427171,"endHours":24.33009473427171,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:20","end":"01:20","startHours":24.33009473427171,"endHours":25.33009473427171,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:20","end":"02:20","startHours":25.33009473427171,"endHours":26.33009473427171,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:20","end":"03:20","startHours":26.33009473427171,"endHours":27.33009473427171,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:20","end":"04:20","startHours":27.33009473427171,"endHours":28.33009473427171,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:20","end":"05:20","startHours":28.33009473427171,"endHours":29.33009473427171,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:20","end":"06:20","startHours":29.33009473427171,"endHours":30.33009473427171,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","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":"East (Pūrva)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":12.4832710001173,"eotMinutes":-3.0500109105302213,"ayanamsa":22.1437}},"calendars":{"vikram_samvat":1934,"vikram_samvatsara":"Vikṛti","saka_samvat":1799,"saka_samvatsara":"Īśvara","bengali_samvat":1284,"malayalam_era":1053,"nanakshahi_year":408,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Śrāvaṇa","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Dvādaśī · Vikram 1934 Vikṛti · Śaka 1799 Īśvara"},"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":[]},"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 August 20, 1877 CE · Thane, Maharashtra · Vidhyamitra","description":"August 20, 1877 CE for Thane, Maharashtra: Śukla Dvādaśī, sūryodaya 06:20, sūryāsta 19:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/1877-08-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/1877-08-20","sa":"https://sa.vidhyamitra.com/city/thane/1877-08-20","hi":"https://hi.vidhyamitra.com/city/thane/1877-08-20","x-default":"https://vidhyamitra.com/city/thane/1877-08-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T22:13:01.894Z","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":"2026-06-01T22:13:01.894Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T22:13:01.894Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}