{"id":"vidhyamitra:city-day:ranchi:1981-07-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ranchi/1981-07-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-07-23","date_display":"July 23, 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":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444808.770833,"kali_year":5083,"ahargana":1856343.2708,"sun":{"sidereal_longitude":96.0808,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":349.4163,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":253.3355,"elapsed_within_tithi_degrees":1.3355},"nakshatra":{"number":27,"name":"Revatī","pada":1,"moon_longitude":349.4163,"elapsed_within_degrees":2.7496},"yoga":{"number":7,"name":"Sukarma","sum_longitude":85.4971},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"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":7,"day":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444808.770833,"ahargana":1856343.2708,"kali_year":5083,"ayanamsa_lahiri":23.5954,"grahas":{"sun":{"sidereal_longitude":96.518484,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"moon":{"sidereal_longitude":348.635184,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false,"latitude":-4.1543},"mars":{"sidereal_longitude":69.79918399999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":78.701684,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":161.443584,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"venus":{"sidereal_longitude":124.81868400000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":160.970684,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":102.0002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":282.0002,"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":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444808.770833,"kali_year":5083,"ahargana":1856343.2708,"sun":{"sidereal_longitude":96.0808,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":349.4163,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":253.3355,"elapsed_within_tithi_degrees":1.3355},"nakshatra":{"number":27,"name":"Revatī","pada":1,"moon_longitude":349.4163,"elapsed_within_degrees":2.7496},"yoga":{"number":7,"name":"Sukarma","sum_longitude":85.4971},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.154,"elongation":106.665},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.154,"opposition_distance":73.335}},"eclipse_window_40days":[{"offset_days":-6,"type":"lunar","occurs":true,"moon_latitude":1.092,"opposition_distance":2.128},{"offset_days":8,"type":"solar","occurs":true,"moon_latitude":0.181,"elongation":0.207}]},"city":{"slug":"ranchi","name":"Ranchi, Jharkhand","lat":23.3441,"lon":85.3096,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"ranchi","name":"Ranchi, Jharkhand","lat":23.3441,"lon":85.3096,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"sunriseLocal":"05:15","sunsetLocal":"18:35","solarNoonLocal":"11:55","dayLengthHours":13.343848858468759,"dayLengthDisplay":"13 Hours 20 Mins 38 Secs","nightLengthDisplay":"10 Hours 39 Mins 22 Secs","moonriseLocal":"22:32","moonsetLocal":"10:54","rahuKala":{"name":"Rāhu Kāla","start":"13:35","end":"15:15","startHours":13.582890076032708,"endHours":15.250871183341303,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:15","end":"06:55","startHours":5.2429845394897345,"endHours":6.91096564679833,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:35","end":"10:15","startHours":8.578946754106925,"endHours":10.246927861415518,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:21","end":"08:48","startHours":8.356549273132444,"endHours":8.801344235081404,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:48","end":"06:09","startHours":5.798978241925933,"endHours":6.1548142114851,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:28","end":"12:22","startHours":11.470114006775155,"endHours":12.35970393067307,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:28","end":"04:21","startHours":3.4638046916939,"endHours":4.353394615591817,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:08","end":"05:15","startHours":4.130997134617338,"endHours":5.2429845394897345,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"15:02","startHours":14.138883778468907,"endHours":15.028473702366824,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:23","end":"18:47","startHours":18.386833397958494,"endHours":18.786833397958492,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:35","end":"19:09","startHours":18.586833397958493,"endHours":19.14282710039469,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:20","end":"20:05","startHours":18.336833397958493,"endHours":20.086833397958493,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:28","end":"00:22","startHours":23.470114006775155,"endHours":24.35970393067307,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:15","end":"06:55","startHours":5.2429845394897345,"endHours":6.91096564679833,"quality":"auspicious"},{"name":"Roga","start":"06:55","end":"08:35","startHours":6.91096564679833,"endHours":8.578946754106925,"quality":"inauspicious"},{"name":"Udveg","start":"08:35","end":"10:15","startHours":8.578946754106925,"endHours":10.246927861415518,"quality":"inauspicious"},{"name":"Chala","start":"10:15","end":"11:55","startHours":10.246927861415518,"endHours":11.914908968724113,"quality":"neutral"},{"name":"Labha","start":"11:55","end":"13:35","startHours":11.914908968724113,"endHours":13.582890076032708,"quality":"auspicious"},{"name":"Amṛta","start":"13:35","end":"15:15","startHours":13.582890076032708,"endHours":15.250871183341303,"quality":"auspicious"},{"name":"Kāla","start":"15:15","end":"16:55","startHours":15.250871183341303,"endHours":16.918852290649898,"quality":"inauspicious"},{"name":"Śubha","start":"16:55","end":"18:35","startHours":16.918852290649898,"endHours":18.586833397958493,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:35","end":"19:55","startHours":18.586833397958493,"endHours":19.918852290649898,"quality":"auspicious"},{"name":"Kāla","start":"19:55","end":"21:15","startHours":19.918852290649898,"endHours":21.250871183341303,"quality":"inauspicious"},{"name":"Śubha","start":"21:15","end":"22:35","startHours":21.250871183341303,"endHours":22.582890076032708,"quality":"auspicious"},{"name":"Roga","start":"22:35","end":"23:55","startHours":22.582890076032708,"endHours":23.914908968724113,"quality":"inauspicious"},{"name":"Udveg","start":"23:55","end":"01:15","startHours":23.914908968724113,"endHours":25.246927861415518,"quality":"inauspicious"},{"name":"Chala","start":"01:15","end":"02:35","startHours":25.246927861415518,"endHours":26.578946754106923,"quality":"neutral"},{"name":"Labha","start":"02:35","end":"03:55","startHours":26.578946754106923,"endHours":27.91096564679833,"quality":"auspicious"},{"name":"Amṛta","start":"03:55","end":"05:15","startHours":27.91096564679833,"endHours":29.242984539489733,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:15","end":"06:15","startHours":5.2429845394897345,"endHours":6.2429845394897345,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:15","end":"07:15","startHours":6.2429845394897345,"endHours":7.2429845394897345,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:15","end":"08:15","startHours":7.2429845394897345,"endHours":8.242984539489735,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:15","end":"09:15","startHours":8.242984539489735,"endHours":9.242984539489735,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:15","end":"10:15","startHours":9.242984539489735,"endHours":10.242984539489735,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:15","end":"11:15","startHours":10.242984539489735,"endHours":11.242984539489735,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:15","end":"12:15","startHours":11.242984539489735,"endHours":12.242984539489735,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:15","end":"13:15","startHours":12.242984539489735,"endHours":13.242984539489735,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:15","end":"14:15","startHours":13.242984539489735,"endHours":14.242984539489735,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:15","end":"15:15","startHours":14.242984539489735,"endHours":15.242984539489735,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:15","end":"16:15","startHours":15.242984539489735,"endHours":16.242984539489733,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:15","end":"17:15","startHours":16.242984539489733,"endHours":17.242984539489733,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:15","end":"18:15","startHours":17.242984539489733,"endHours":18.242984539489733,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:15","end":"19:15","startHours":18.242984539489733,"endHours":19.242984539489733,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:15","end":"20:15","startHours":19.242984539489733,"endHours":20.242984539489733,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:15","end":"21:15","startHours":20.242984539489733,"endHours":21.242984539489733,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:15","end":"22:15","startHours":21.242984539489733,"endHours":22.242984539489733,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:15","end":"23:15","startHours":22.242984539489733,"endHours":23.242984539489733,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:15","end":"00:15","startHours":23.242984539489733,"endHours":24.242984539489733,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:15","end":"01:15","startHours":24.242984539489733,"endHours":25.242984539489733,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:15","end":"02:15","startHours":25.242984539489733,"endHours":26.242984539489733,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:15","end":"03:15","startHours":26.242984539489733,"endHours":27.242984539489733,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:15","end":"04:15","startHours":27.242984539489733,"endHours":28.242984539489733,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:15","end":"05:15","startHours":28.242984539489733,"endHours":29.242984539489733,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Lumba","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":20.12384300546277,"eotMinutes":-6.132938123446804,"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 Saptamī · 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":"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":"ranchi"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga July 23, 1981 CE · Ranchi, Jharkhand · Vidhyamitra","description":"July 23, 1981 CE for Ranchi, Jharkhand: Kṛṣṇa Saptamī, sūryodaya 05:15, sūryāsta 18:35.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ranchi/1981-07-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ranchi/1981-07-23","sa":"https://sa.vidhyamitra.com/city/ranchi/1981-07-23","hi":"https://hi.vidhyamitra.com/city/ranchi/1981-07-23","x-default":"https://vidhyamitra.com/city/ranchi/1981-07-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T19:21:49.792Z","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":"2026-05-18T19:21:49.792Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T19:21:49.792Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}