{"id":"vidhyamitra:city-day:bhavnagar:1981-06-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/bhavnagar/1981-06-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-06-18","date_display":"June 18, 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":6,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444773.770833,"kali_year":5083,"ahargana":1856308.2708,"sun":{"sidereal_longitude":62.9354,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":248.0603,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":185.1249,"elapsed_within_tithi_degrees":5.1249},"nakshatra":{"number":19,"name":"Mūla","pada":3,"moon_longitude":248.0603,"elapsed_within_degrees":8.0603},"yoga":{"number":24,"name":"Śukla","sum_longitude":310.9957},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":6,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444773.770833,"ahargana":1856308.2708,"kali_year":5083,"ayanamsa_lahiri":23.594,"grahas":{"sun":{"sidereal_longitude":63.135920999999996,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":247.774221,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false,"latitude":2.6302},"mars":{"sidereal_longitude":45.731221000000005,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":69.440921,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":157.738021,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":82.30062099999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":159.28312099999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":103.8546,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":283.8546,"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":6,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444773.770833,"kali_year":5083,"ahargana":1856308.2708,"sun":{"sidereal_longitude":62.9354,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":248.0603,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":185.1249,"elapsed_within_tithi_degrees":5.1249},"nakshatra":{"number":19,"name":"Mūla","pada":3,"moon_longitude":248.0603,"elapsed_within_degrees":8.0603},"yoga":{"number":24,"name":"Śukla","sum_longitude":310.9957},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.63,"elongation":174.875},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.63,"opposition_distance":5.125}},"eclipse_window_40days":[]},"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":"05:58","sunsetLocal":"19:26","solarNoonLocal":"12:42","dayLengthHours":13.458783194415583,"dayLengthDisplay":"13 Hours 27 Mins 32 Secs","nightLengthDisplay":"10 Hours 32 Mins 28 Secs","moonriseLocal":"19:38","moonsetLocal":"06:24","rahuKala":{"name":"Rāhu Kāla","start":"14:23","end":"16:04","startHours":14.385831793750276,"endHours":16.068179693052222,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:58","end":"07:39","startHours":5.974092297240537,"endHours":7.656440196542484,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:20","end":"11:01","startHours":9.338788095844432,"endHours":11.02113599514638,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:07","end":"09:34","startHours":9.114475042604173,"endHours":9.563101149084693,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:32","end":"06:54","startHours":6.534874930341186,"endHours":6.8937758155256015,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:15","end":"13:09","startHours":12.25485778796781,"endHours":13.152110000928849,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:11","end":"05:05","startHours":4.179587871318459,"endHours":5.076840084279498,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:51","end":"05:58","startHours":4.852527031039238,"endHours":5.974092297240537,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:57","end":"15:51","startHours":14.946614426850925,"endHours":15.843866639811964,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:14","end":"19:38","startHours":19.23287549165612,"endHours":19.63287549165612,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:26","end":"20:00","startHours":19.43287549165612,"endHours":19.99365812475677,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:11","end":"20:56","startHours":19.18287549165612,"endHours":20.93287549165612,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:15","end":"01:09","startHours":24.25485778796781,"endHours":25.152110000928847,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:58","end":"07:39","startHours":5.974092297240537,"endHours":7.656440196542484,"quality":"auspicious"},{"name":"Roga","start":"07:39","end":"09:20","startHours":7.656440196542484,"endHours":9.338788095844432,"quality":"inauspicious"},{"name":"Udveg","start":"09:20","end":"11:01","startHours":9.338788095844432,"endHours":11.02113599514638,"quality":"inauspicious"},{"name":"Chala","start":"11:01","end":"12:42","startHours":11.02113599514638,"endHours":12.703483894448329,"quality":"neutral"},{"name":"Labha","start":"12:42","end":"14:23","startHours":12.703483894448329,"endHours":14.385831793750276,"quality":"auspicious"},{"name":"Amṛta","start":"14:23","end":"16:04","startHours":14.385831793750276,"endHours":16.068179693052222,"quality":"auspicious"},{"name":"Kāla","start":"16:04","end":"17:45","startHours":16.068179693052222,"endHours":17.75052759235417,"quality":"inauspicious"},{"name":"Śubha","start":"17:45","end":"19:26","startHours":17.75052759235417,"endHours":19.43287549165612,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:26","end":"20:45","startHours":19.43287549165612,"endHours":20.75052759235417,"quality":"auspicious"},{"name":"Kāla","start":"20:45","end":"22:04","startHours":20.75052759235417,"endHours":22.068179693052222,"quality":"inauspicious"},{"name":"Śubha","start":"22:04","end":"23:23","startHours":22.068179693052222,"endHours":23.385831793750278,"quality":"auspicious"},{"name":"Roga","start":"23:23","end":"00:42","startHours":23.385831793750278,"endHours":24.70348389444833,"quality":"inauspicious"},{"name":"Udveg","start":"00:42","end":"02:01","startHours":24.70348389444833,"endHours":26.02113599514638,"quality":"inauspicious"},{"name":"Chala","start":"02:01","end":"03:20","startHours":26.02113599514638,"endHours":27.338788095844432,"quality":"neutral"},{"name":"Labha","start":"03:20","end":"04:39","startHours":27.338788095844432,"endHours":28.656440196542484,"quality":"auspicious"},{"name":"Amṛta","start":"04:39","end":"05:58","startHours":28.656440196542484,"endHours":29.97409229724054,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:58","end":"06:58","startHours":5.974092297240537,"endHours":6.974092297240537,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:58","end":"07:58","startHours":6.974092297240537,"endHours":7.974092297240537,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:58","end":"08:58","startHours":7.974092297240537,"endHours":8.974092297240537,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:58","end":"09:58","startHours":8.974092297240537,"endHours":9.974092297240537,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:58","end":"10:58","startHours":9.974092297240537,"endHours":10.974092297240537,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:58","end":"11:58","startHours":10.974092297240537,"endHours":11.974092297240537,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:58","end":"12:58","startHours":11.974092297240537,"endHours":12.974092297240537,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:58","end":"13:58","startHours":12.974092297240537,"endHours":13.974092297240537,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:58","end":"14:58","startHours":13.974092297240537,"endHours":14.974092297240537,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:58","end":"15:58","startHours":14.974092297240537,"endHours":15.974092297240537,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:58","end":"16:58","startHours":15.974092297240537,"endHours":16.97409229724054,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:58","end":"17:58","startHours":16.97409229724054,"endHours":17.97409229724054,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:58","end":"18:58","startHours":17.97409229724054,"endHours":18.97409229724054,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:58","end":"19:58","startHours":18.97409229724054,"endHours":19.97409229724054,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:58","end":"20:58","startHours":19.97409229724054,"endHours":20.97409229724054,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:58","end":"21:58","startHours":20.97409229724054,"endHours":21.97409229724054,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:58","end":"22:58","startHours":21.97409229724054,"endHours":22.97409229724054,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:58","end":"23:58","startHours":22.97409229724054,"endHours":23.97409229724054,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:58","end":"00:58","startHours":23.97409229724054,"endHours":24.97409229724054,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:58","end":"01:58","startHours":24.97409229724054,"endHours":25.97409229724054,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:58","end":"02:58","startHours":25.97409229724054,"endHours":26.97409229724054,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:58","end":"03:58","startHours":26.97409229724054,"endHours":27.97409229724054,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:58","end":"04:58","startHours":27.97409229724054,"endHours":28.97409229724054,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:58","end":"05:58","startHours":28.97409229724054,"endHours":29.97409229724054,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","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":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":23.39606440282373,"eotMinutes":-0.8166336668997627,"ayanamsa":23.594}},"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 Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āṣāḍha","lunar_month_amanta":"Jyeṣṭha","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 Kṛṣṇa Pratipada · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[]},"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 June 18, 1981 CE · Bhavnagar, Gujarat · Vidhyamitra","description":"June 18, 1981 CE for Bhavnagar, Gujarat: Kṛṣṇa Pratipada, sūryodaya 05:58, sūryāsta 19:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/bhavnagar/1981-06-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/bhavnagar/1981-06-18","sa":"https://sa.vidhyamitra.com/city/bhavnagar/1981-06-18","hi":"https://hi.vidhyamitra.com/city/bhavnagar/1981-06-18","x-default":"https://vidhyamitra.com/city/bhavnagar/1981-06-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T20:52:31.685Z","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":"2026-06-02T20:52:31.685Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T20:52:31.685Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}