{"id":"vidhyamitra:city-day:bhavnagar:1981-07-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/bhavnagar/1981-07-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-07-10","date_display":"July 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":7,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444795.770833,"kali_year":5083,"ahargana":1856330.2708,"sun":{"sidereal_longitude":83.7636,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":182.82,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":99.0564,"elapsed_within_tithi_degrees":3.0564},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":182.82,"elapsed_within_degrees":9.4867},"yoga":{"number":20,"name":"Śiva","sum_longitude":266.5836},"karana":{"half_tithi_index":16,"name":"Bālava"},"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":1981,"month":7,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444795.770833,"ahargana":1856330.2708,"kali_year":5083,"ayanamsa_lahiri":23.5949,"grahas":{"sun":{"sidereal_longitude":84.116781,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"moon":{"sidereal_longitude":184.435881,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false,"latitude":4.4333},"mars":{"sidereal_longitude":60.98598100000004,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":64.56578100000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":159.744781,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":109.08208100000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":160.13228100000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":102.689,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":282.689,"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":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444795.770833,"kali_year":5083,"ahargana":1856330.2708,"sun":{"sidereal_longitude":83.7636,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":182.82,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":99.0564,"elapsed_within_tithi_degrees":3.0564},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":182.82,"elapsed_within_degrees":9.4867},"yoga":{"number":20,"name":"Śiva","sum_longitude":266.5836},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.433,"elongation":99.056},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.433,"opposition_distance":80.944}},"eclipse_window_40days":[{"offset_days":7,"type":"lunar","occurs":true,"moon_latitude":1.092,"opposition_distance":2.128}]},"city":{"slug":"bhavnagar","name":"Bhavnagar, Gujarat","lat":21.7645,"lon":72.1519,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"bhavnagar","name":"Bhavnagar, Gujarat","lat":21.7645,"lon":72.1519,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"sunriseLocal":"06:05","sunsetLocal":"19:28","solarNoonLocal":"12:46","dayLengthHours":13.385509318127431,"dayLengthDisplay":"13 Hours 23 Mins 08 Secs","nightLengthDisplay":"10 Hours 36 Mins 52 Secs","moonriseLocal":"13:43","moonsetLocal":"01:13","rahuKala":{"name":"Rāhu Kāla","start":"11:06","end":"12:46","startHours":11.099553359750278,"endHours":12.772742024516205,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"16:07","end":"17:48","startHours":16.119119354048063,"endHours":17.79230801881399,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:45","end":"09:26","startHours":7.75317603021842,"endHours":9.426364694984349,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:12","end":"09:39","startHours":9.203272873015557,"endHours":9.649456516953139,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"07:00","startHours":6.637716920374467,"endHours":6.994663835524531,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:20","end":"13:13","startHours":12.326558380578625,"endHours":13.218925668453785,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:18","end":"05:11","startHours":4.295252789702166,"endHours":5.1876200775773285,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:58","end":"06:05","startHours":4.964528255608538,"endHours":6.0799873654524905,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"15:00","end":"15:54","startHours":15.003660244204111,"endHours":15.896027532079273,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:16","end":"19:40","startHours":19.265496683579922,"endHours":19.66549668357992,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:28","end":"20:01","startHours":19.46549668357992,"endHours":20.0232262385019,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:13","end":"20:58","startHours":19.21549668357992,"endHours":20.96549668357992,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:20","end":"01:13","startHours":24.326558380578625,"endHours":25.218925668453785,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:05","end":"07:45","startHours":6.0799873654524905,"endHours":7.75317603021842,"quality":"neutral"},{"name":"Labha","start":"07:45","end":"09:26","startHours":7.75317603021842,"endHours":9.426364694984349,"quality":"auspicious"},{"name":"Amṛta","start":"09:26","end":"11:06","startHours":9.426364694984349,"endHours":11.099553359750278,"quality":"auspicious"},{"name":"Kāla","start":"11:06","end":"12:46","startHours":11.099553359750278,"endHours":12.772742024516205,"quality":"inauspicious"},{"name":"Śubha","start":"12:46","end":"14:27","startHours":12.772742024516205,"endHours":14.445930689282134,"quality":"auspicious"},{"name":"Roga","start":"14:27","end":"16:07","startHours":14.445930689282134,"endHours":16.119119354048063,"quality":"inauspicious"},{"name":"Udveg","start":"16:07","end":"17:48","startHours":16.119119354048063,"endHours":17.79230801881399,"quality":"inauspicious"},{"name":"Chala","start":"17:48","end":"19:28","startHours":17.79230801881399,"endHours":19.46549668357992,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:28","end":"20:48","startHours":19.46549668357992,"endHours":20.792308018813994,"quality":"inauspicious"},{"name":"Udveg","start":"20:48","end":"22:07","startHours":20.792308018813994,"endHours":22.119119354048063,"quality":"inauspicious"},{"name":"Chala","start":"22:07","end":"23:27","startHours":22.119119354048063,"endHours":23.445930689282136,"quality":"neutral"},{"name":"Labha","start":"23:27","end":"00:46","startHours":23.445930689282136,"endHours":24.772742024516205,"quality":"auspicious"},{"name":"Amṛta","start":"00:46","end":"02:06","startHours":24.772742024516205,"endHours":26.099553359750278,"quality":"auspicious"},{"name":"Kāla","start":"02:06","end":"03:26","startHours":26.099553359750278,"endHours":27.42636469498435,"quality":"inauspicious"},{"name":"Śubha","start":"03:26","end":"04:45","startHours":27.42636469498435,"endHours":28.75317603021842,"quality":"auspicious"},{"name":"Roga","start":"04:45","end":"06:05","startHours":28.75317603021842,"endHours":30.07998736545249,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:05","end":"07:05","startHours":6.0799873654524905,"endHours":7.0799873654524905,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:05","end":"08:05","startHours":7.0799873654524905,"endHours":8.07998736545249,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:05","end":"09:05","startHours":8.07998736545249,"endHours":9.07998736545249,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:05","end":"10:05","startHours":9.07998736545249,"endHours":10.07998736545249,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:05","end":"11:05","startHours":10.07998736545249,"endHours":11.07998736545249,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:05","end":"12:05","startHours":11.07998736545249,"endHours":12.07998736545249,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:05","end":"13:05","startHours":12.07998736545249,"endHours":13.07998736545249,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:05","end":"14:05","startHours":13.07998736545249,"endHours":14.07998736545249,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:05","end":"15:05","startHours":14.07998736545249,"endHours":15.07998736545249,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:05","end":"16:05","startHours":15.07998736545249,"endHours":16.07998736545249,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:05","end":"17:05","startHours":16.07998736545249,"endHours":17.07998736545249,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:05","end":"18:05","startHours":17.07998736545249,"endHours":18.07998736545249,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:05","end":"19:05","startHours":18.07998736545249,"endHours":19.07998736545249,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:05","end":"20:05","startHours":19.07998736545249,"endHours":20.07998736545249,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:05","end":"21:05","startHours":20.07998736545249,"endHours":21.07998736545249,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:05","end":"22:05","startHours":21.07998736545249,"endHours":22.07998736545249,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:05","end":"23:05","startHours":22.07998736545249,"endHours":23.07998736545249,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:05","end":"00:05","startHours":23.07998736545249,"endHours":24.07998736545249,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:05","end":"01:05","startHours":24.07998736545249,"endHours":25.07998736545249,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:05","end":"02:05","startHours":25.07998736545249,"endHours":26.07998736545249,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:05","end":"03:05","startHours":26.07998736545249,"endHours":27.07998736545249,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:05","end":"04:05","startHours":27.07998736545249,"endHours":28.07998736545249,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:05","end":"05:05","startHours":28.07998736545249,"endHours":29.07998736545249,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:05","end":"06:05","startHours":29.07998736545249,"endHours":30.07998736545249,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"North","rahuVasa":"South-East","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":22.264308102366638,"eotMinutes":-4.972121470972273,"ayanamsa":23.5949}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āṣāḍha","lunar_month_amanta":"Āṣāḍha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Śukla Navamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"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":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"bhavnagar"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga July 10, 1981 CE · Bhavnagar, Gujarat · Vidhyamitra","description":"July 10, 1981 CE for Bhavnagar, Gujarat: Śukla Navamī, sūryodaya 06:05, sūryāsta 19:28.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/bhavnagar/1981-07-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/bhavnagar/1981-07-10","sa":"https://sa.vidhyamitra.com/city/bhavnagar/1981-07-10","hi":"https://hi.vidhyamitra.com/city/bhavnagar/1981-07-10","x-default":"https://vidhyamitra.com/city/bhavnagar/1981-07-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T17:52:07.793Z","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":"2026-06-02T17:52:07.793Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T17:52:07.793Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}