{"id":"vidhyamitra:city-day:thane:1981-07-25:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/1981-07-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-07-25","date_display":"July 25, 1981 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":1981,"month":7,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444810.770833,"kali_year":5083,"ahargana":1856345.2708,"sun":{"sidereal_longitude":97.9783,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":17.8536,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":279.8753,"elapsed_within_tithi_degrees":3.8753},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2,"moon_longitude":17.8536,"elapsed_within_degrees":4.5202},"yoga":{"number":9,"name":"Śūla","sum_longitude":115.8318},"karana":{"half_tithi_index":46,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1981,"month":7,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444810.770833,"ahargana":1856345.2708,"kali_year":5083,"ayanamsa_lahiri":23.5954,"grahas":{"sun":{"sidereal_longitude":98.42850699999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"moon":{"sidereal_longitude":16.814707,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false,"latitude":-4.4756},"mars":{"sidereal_longitude":71.14200700000004,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":81.99660699999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":161.73400700000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"venus":{"sidereal_longitude":127.23290700000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":161.119507,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":101.8942,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":281.8942,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"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":1981,"month":7,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444810.770833,"kali_year":5083,"ahargana":1856345.2708,"sun":{"sidereal_longitude":97.9783,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":17.8536,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":279.8753,"elapsed_within_tithi_degrees":3.8753},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2,"moon_longitude":17.8536,"elapsed_within_degrees":4.5202},"yoga":{"number":9,"name":"Śūla","sum_longitude":115.8318},"karana":{"half_tithi_index":46,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.476,"elongation":80.125},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.476,"opposition_distance":99.875}},"eclipse_window_40days":[{"offset_days":-8,"type":"lunar","occurs":true,"moon_latitude":1.092,"opposition_distance":2.128},{"offset_days":6,"type":"solar","occurs":true,"moon_latitude":0.181,"elongation":0.207}]},"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":"06:12","sunsetLocal":"19:17","solarNoonLocal":"12:44","dayLengthHours":13.082430754213448,"dayLengthDisplay":"13 Hours 04 Mins 57 Secs","nightLengthDisplay":"10 Hours 55 Mins 03 Secs","moonriseLocal":"00:54","moonsetLocal":"13:42","rahuKala":{"name":"Rāhu Kāla","start":"09:28","end":"11:06","startHours":9.467146496987475,"endHours":11.102450341264156,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:22","end":"16:01","startHours":14.373058029817518,"endHours":16.0083618740942,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:12","end":"07:50","startHours":6.196538808434113,"endHours":7.831842652710794,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:15","end":"09:41","startHours":9.249105984417252,"endHours":9.6851870095577,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:44","end":"07:05","startHours":6.741640089859673,"endHours":7.090504909972031,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:18","end":"13:10","startHours":12.301673160400389,"endHours":13.173835210681284,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:27","end":"05:19","startHours":4.4522147078723195,"endHours":5.324376758153217,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:06","end":"06:12","startHours":5.106336245582992,"endHours":6.196538808434113,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:55","end":"15:47","startHours":14.918159311243079,"endHours":15.790321361523976,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:05","end":"19:29","startHours":19.07896956264756,"endHours":19.47896956264756,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:17","end":"19:49","startHours":19.27896956264756,"endHours":19.82407084407312,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:02","end":"20:47","startHours":19.02896956264756,"endHours":20.77896956264756,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:18","end":"01:10","startHours":24.301673160400387,"endHours":25.173835210681286,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:12","end":"07:50","startHours":6.196538808434113,"endHours":7.831842652710794,"quality":"inauspicious"},{"name":"Śubha","start":"07:50","end":"09:28","startHours":7.831842652710794,"endHours":9.467146496987475,"quality":"auspicious"},{"name":"Roga","start":"09:28","end":"11:06","startHours":9.467146496987475,"endHours":11.102450341264156,"quality":"inauspicious"},{"name":"Udveg","start":"11:06","end":"12:44","startHours":11.102450341264156,"endHours":12.737754185540837,"quality":"inauspicious"},{"name":"Chala","start":"12:44","end":"14:22","startHours":12.737754185540837,"endHours":14.373058029817518,"quality":"neutral"},{"name":"Labha","start":"14:22","end":"16:01","startHours":14.373058029817518,"endHours":16.0083618740942,"quality":"auspicious"},{"name":"Amṛta","start":"16:01","end":"17:39","startHours":16.0083618740942,"endHours":17.64366571837088,"quality":"auspicious"},{"name":"Kāla","start":"17:39","end":"19:17","startHours":17.64366571837088,"endHours":19.27896956264756,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:17","end":"20:39","startHours":19.27896956264756,"endHours":20.64366571837088,"quality":"auspicious"},{"name":"Amṛta","start":"20:39","end":"22:01","startHours":20.64366571837088,"endHours":22.0083618740942,"quality":"auspicious"},{"name":"Kāla","start":"22:01","end":"23:22","startHours":22.0083618740942,"endHours":23.373058029817518,"quality":"inauspicious"},{"name":"Śubha","start":"23:22","end":"00:44","startHours":23.373058029817518,"endHours":24.737754185540837,"quality":"auspicious"},{"name":"Roga","start":"00:44","end":"02:06","startHours":24.737754185540837,"endHours":26.102450341264156,"quality":"inauspicious"},{"name":"Udveg","start":"02:06","end":"03:28","startHours":26.102450341264156,"endHours":27.467146496987475,"quality":"inauspicious"},{"name":"Chala","start":"03:28","end":"04:50","startHours":27.467146496987475,"endHours":28.831842652710794,"quality":"neutral"},{"name":"Labha","start":"04:50","end":"06:12","startHours":28.831842652710794,"endHours":30.196538808434113,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:12","end":"07:12","startHours":6.196538808434113,"endHours":7.196538808434113,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:12","end":"08:12","startHours":7.196538808434113,"endHours":8.196538808434113,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:12","end":"09:12","startHours":8.196538808434113,"endHours":9.196538808434113,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:12","end":"10:12","startHours":9.196538808434113,"endHours":10.196538808434113,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:12","end":"11:12","startHours":10.196538808434113,"endHours":11.196538808434113,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:12","end":"12:12","startHours":11.196538808434113,"endHours":12.196538808434113,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:12","end":"13:12","startHours":12.196538808434113,"endHours":13.196538808434113,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:12","end":"14:12","startHours":13.196538808434113,"endHours":14.196538808434113,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:12","end":"15:12","startHours":14.196538808434113,"endHours":15.196538808434113,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:12","end":"16:12","startHours":15.196538808434113,"endHours":16.196538808434113,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:12","end":"17:12","startHours":16.196538808434113,"endHours":17.196538808434113,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:12","end":"18:12","startHours":17.196538808434113,"endHours":18.196538808434113,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:12","end":"19:12","startHours":18.196538808434113,"endHours":19.196538808434113,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:12","end":"20:12","startHours":19.196538808434113,"endHours":20.196538808434113,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:12","end":"21:12","startHours":20.196538808434113,"endHours":21.196538808434113,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:12","end":"22:12","startHours":21.196538808434113,"endHours":22.196538808434113,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:12","end":"23:12","startHours":22.196538808434113,"endHours":23.196538808434113,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:12","end":"00:12","startHours":23.196538808434113,"endHours":24.196538808434113,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:12","end":"01:12","startHours":24.196538808434113,"endHours":25.196538808434113,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:12","end":"02:12","startHours":25.196538808434113,"endHours":26.196538808434113,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:12","end":"03:12","startHours":26.196538808434113,"endHours":27.196538808434113,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:12","end":"04:12","startHours":27.196538808434113,"endHours":28.196538808434113,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:12","end":"05:12","startHours":28.196538808434113,"endHours":29.196538808434113,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:12","end":"06:12","startHours":29.196538808434113,"endHours":30.196538808434113,"planetary_lord":"Mercury"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":19.706878613424706,"eotMinutes":-6.177651132450234,"ayanamsa":23.5954}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Kṛṣṇa Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Kṛṣṇa Navamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi":"Karka"},"precedence":2}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 July 25, 1981 CE · Thane, Maharashtra · Vidhyamitra","description":"July 25, 1981 CE for Thane, Maharashtra: Kṛṣṇa Navamī, sūryodaya 06:12, sūryāsta 19:17.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/1981-07-25","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/1981-07-25","sa":"https://sa.vidhyamitra.com/city/thane/1981-07-25","hi":"https://hi.vidhyamitra.com/city/thane/1981-07-25","x-default":"https://vidhyamitra.com/city/thane/1981-07-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T08:04:11.223Z","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":"2026-05-18T08:04:11.223Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T08:04:11.223Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}