{"id":"vidhyamitra:city-day:thane:1981-05-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/1981-05-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-05-10","date_display":"May 10, 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":5,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444734.770833,"kali_year":5083,"ahargana":1856269.2708,"sun":{"sidereal_longitude":25.7688,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":101.951,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":76.1822,"elapsed_within_tithi_degrees":4.1822},"nakshatra":{"number":8,"name":"Puṣya","pada":3,"moon_longitude":101.951,"elapsed_within_degrees":8.6176},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":127.7198},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":5,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444734.770833,"ahargana":1856269.2708,"kali_year":5083,"ayanamsa_lahiri":23.5925,"grahas":{"sun":{"sidereal_longitude":25.71431100000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":104.89361099999996,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false,"latitude":-0.3112},"mars":{"sidereal_longitude":17.625610999999992,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":39.90131100000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":157.47941100000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":34.49341099999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":159.735011,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":105.921,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":285.921,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1981,"month":5,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444734.770833,"kali_year":5083,"ahargana":1856269.2708,"sun":{"sidereal_longitude":25.7688,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":101.951,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":76.1822,"elapsed_within_tithi_degrees":4.1822},"nakshatra":{"number":8,"name":"Puṣya","pada":3,"moon_longitude":101.951,"elapsed_within_degrees":8.6176},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":127.7198},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.311,"elongation":76.182},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.311,"opposition_distance":103.818}},"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":"06:05","sunsetLocal":"19:03","solarNoonLocal":"12:34","dayLengthHours":12.968253544392029,"dayLengthDisplay":"12 Hours 58 Mins 06 Secs","nightLengthDisplay":"11 Hours 01 Mins 54 Secs","moonriseLocal":"11:22","moonsetLocal":"00:20","rahuKala":{"name":"Rāhu Kāla","start":"17:26","end":"19:03","startHours":17.436611315412783,"endHours":19.05764300846179,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:34","end":"14:12","startHours":12.573516236265775,"endHours":14.194547929314778,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:49","end":"17:26","startHours":15.815579622363781,"endHours":17.436611315412783,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:07","end":"09:33","startHours":9.115315291094566,"endHours":9.547590409240968,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:59","startHours":6.62973336175276,"endHours":6.975553456269881,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:08","end":"13:00","startHours":12.141241118119373,"endHours":13.005791354412176,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:22","end":"05:13","startHours":4.360288991484156,"endHours":5.2248392277769575,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:01","end":"06:05","startHours":5.008701668703757,"endHours":6.089389464069759,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:36","startHours":14.734891826997778,"endHours":15.59944206329058,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:51","end":"19:15","startHours":18.85764300846179,"endHours":19.257643008461788,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:03","end":"19:36","startHours":19.05764300846179,"endHours":19.59798690614479,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:48","end":"20:33","startHours":18.80764300846179,"endHours":20.55764300846179,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:08","end":"01:00","startHours":24.141241118119375,"endHours":25.005791354412175,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:05","end":"07:43","startHours":6.089389464069759,"endHours":7.710421157118763,"quality":"inauspicious"},{"name":"Chala","start":"07:43","end":"09:20","startHours":7.710421157118763,"endHours":9.331452850167766,"quality":"neutral"},{"name":"Labha","start":"09:20","end":"10:57","startHours":9.331452850167766,"endHours":10.95248454321677,"quality":"auspicious"},{"name":"Amṛta","start":"10:57","end":"12:34","startHours":10.95248454321677,"endHours":12.573516236265775,"quality":"auspicious"},{"name":"Kāla","start":"12:34","end":"14:12","startHours":12.573516236265775,"endHours":14.194547929314778,"quality":"inauspicious"},{"name":"Śubha","start":"14:12","end":"15:49","startHours":14.194547929314778,"endHours":15.815579622363781,"quality":"auspicious"},{"name":"Roga","start":"15:49","end":"17:26","startHours":15.815579622363781,"endHours":17.436611315412783,"quality":"inauspicious"},{"name":"Udveg","start":"17:26","end":"19:03","startHours":17.436611315412783,"endHours":19.05764300846179,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:03","end":"20:26","startHours":19.05764300846179,"endHours":20.436611315412783,"quality":"auspicious"},{"name":"Roga","start":"20:26","end":"21:49","startHours":20.436611315412783,"endHours":21.81557962236378,"quality":"inauspicious"},{"name":"Udveg","start":"21:49","end":"23:12","startHours":21.81557962236378,"endHours":23.194547929314776,"quality":"inauspicious"},{"name":"Chala","start":"23:12","end":"00:34","startHours":23.194547929314776,"endHours":24.573516236265775,"quality":"neutral"},{"name":"Labha","start":"00:34","end":"01:57","startHours":24.573516236265775,"endHours":25.95248454321677,"quality":"auspicious"},{"name":"Amṛta","start":"01:57","end":"03:20","startHours":25.95248454321677,"endHours":27.331452850167764,"quality":"auspicious"},{"name":"Kāla","start":"03:20","end":"04:43","startHours":27.331452850167764,"endHours":28.710421157118763,"quality":"inauspicious"},{"name":"Śubha","start":"04:43","end":"06:05","startHours":28.710421157118763,"endHours":30.08938946406976,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:05","end":"07:05","startHours":6.089389464069759,"endHours":7.089389464069759,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:05","end":"08:05","startHours":7.089389464069759,"endHours":8.08938946406976,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:05","end":"09:05","startHours":8.08938946406976,"endHours":9.08938946406976,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:05","end":"10:05","startHours":9.08938946406976,"endHours":10.08938946406976,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:05","end":"11:05","startHours":10.08938946406976,"endHours":11.08938946406976,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:05","end":"12:05","startHours":11.08938946406976,"endHours":12.08938946406976,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:05","end":"13:05","startHours":12.08938946406976,"endHours":13.08938946406976,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:05","end":"14:05","startHours":13.08938946406976,"endHours":14.08938946406976,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:05","end":"15:05","startHours":14.08938946406976,"endHours":15.08938946406976,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:05","end":"16:05","startHours":15.08938946406976,"endHours":16.08938946406976,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:05","end":"17:05","startHours":16.08938946406976,"endHours":17.08938946406976,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:05","end":"18:05","startHours":17.08938946406976,"endHours":18.08938946406976,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:05","end":"19:05","startHours":18.08938946406976,"endHours":19.08938946406976,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:05","end":"20:05","startHours":19.08938946406976,"endHours":20.08938946406976,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:05","end":"21:05","startHours":20.08938946406976,"endHours":21.08938946406976,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:05","end":"22:05","startHours":21.08938946406976,"endHours":22.08938946406976,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:05","end":"23:05","startHours":22.08938946406976,"endHours":23.08938946406976,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:05","end":"00:05","startHours":23.08938946406976,"endHours":24.08938946406976,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:05","end":"01:05","startHours":24.08938946406976,"endHours":25.08938946406976,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:05","end":"02:05","startHours":25.08938946406976,"endHours":26.08938946406976,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:05","end":"03:05","startHours":26.08938946406976,"endHours":27.08938946406976,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:05","end":"04:05","startHours":27.08938946406976,"endHours":28.08938946406976,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:05","end":"05:05","startHours":28.08938946406976,"endHours":29.08938946406976,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:05","end":"06:05","startHours":29.08938946406976,"endHours":30.08938946406976,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":17.551652843215916,"eotMinutes":3.6766258240534686,"ayanamsa":23.5925}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Saptamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2},{"id":"ganga-saptami","name":"Gaṅgā Saptamī","name_sanskrit":"गङ्गा सप्तमी","tradition":"Pan-Hindu","associated_deity":"Devī Gaṅgā","significance":"Gaṅgā Devī's descent to Brahma-loka before her earth-descent.","vrata":true,"detection":{"tithi_number":7,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":4}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 May 10, 1981 CE · Thane, Maharashtra · Vidhyamitra","description":"May 10, 1981 CE for Thane, Maharashtra: Śukla Saptamī, sūryodaya 06:05, sūryāsta 19:03.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/1981-05-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/1981-05-10","sa":"https://sa.vidhyamitra.com/city/thane/1981-05-10","hi":"https://hi.vidhyamitra.com/city/thane/1981-05-10","x-default":"https://vidhyamitra.com/city/thane/1981-05-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T00:44:18.773Z","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":"2026-05-18T00:44:18.773Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T00:44:18.773Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}