{"id":"vidhyamitra:city-day:ranchi:1981-02-22:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ranchi/1981-02-22","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-02-22","date_display":"February 22, 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":2,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444657.770833,"kali_year":5082,"ahargana":1856192.2708,"sun":{"sidereal_longitude":309.9203,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":167.8091,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":217.8888,"elapsed_within_tithi_degrees":1.8888},"nakshatra":{"number":13,"name":"Hasta","pada":3,"moon_longitude":167.8091,"elapsed_within_degrees":7.8091},"yoga":{"number":9,"name":"Śūla","sum_longitude":117.7295},"karana":{"half_tithi_index":36,"name":"Bava"},"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":2,"day":22,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444657.770833,"ahargana":1856192.2708,"kali_year":5082,"ayanamsa_lahiri":23.5896,"grahas":{"sun":{"sidereal_longitude":309.745553,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":164.92835300000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false,"latitude":3.8071},"mars":{"sidereal_longitude":318.615953,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":300.509453,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":165.62705299999993,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"venus":{"sidereal_longitude":298.955553,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":164.96835299999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":110.0009,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":290.0009,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"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":2,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444657.770833,"kali_year":5082,"ahargana":1856192.2708,"sun":{"sidereal_longitude":309.9203,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":167.8091,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":217.8888,"elapsed_within_tithi_degrees":1.8888},"nakshatra":{"number":13,"name":"Hasta","pada":3,"moon_longitude":167.8091,"elapsed_within_degrees":7.8091},"yoga":{"number":9,"name":"Śūla","sum_longitude":117.7295},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.807,"elongation":142.111},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.807,"opposition_distance":37.889}},"eclipse_window_40days":[{"offset_days":-17,"type":"solar","occurs":true,"moon_latitude":-0.15,"elongation":0.162}]},"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":"06:17","sunsetLocal":"17:49","solarNoonLocal":"12:03","dayLengthHours":11.52453756911148,"dayLengthDisplay":"11 Hours 31 Mins 28 Secs","nightLengthDisplay":"12 Hours 28 Mins 32 Secs","moonriseLocal":"20:27","moonsetLocal":"08:20","rahuKala":{"name":"Rāhu Kāla","start":"16:22","end":"17:49","startHours":16.369140920998348,"endHours":17.809708117137284,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:03","end":"13:29","startHours":12.047439332581543,"endHours":13.48800652872048,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:56","end":"16:22","startHours":14.928573724859415,"endHours":16.369140920998348,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:58","end":"09:22","startHours":8.974229314151817,"endHours":9.358380566455532,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:46","end":"07:04","startHours":6.765359613405449,"endHours":7.072680615248422,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:26","startHours":11.663288080277827,"endHours":12.43159058488526,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:45","end":"05:31","startHours":4.74856553881094,"endHours":5.516868043418373,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:19","end":"06:17","startHours":5.324792417266514,"endHours":6.285170548025804,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:58","end":"14:44","startHours":13.968195594100123,"endHours":14.736498098707555,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:37","end":"18:01","startHours":17.609708117137284,"endHours":18.009708117137283,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:49","end":"18:17","startHours":17.809708117137284,"endHours":18.289897182516928,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:34","end":"19:19","startHours":17.559708117137284,"endHours":19.309708117137284,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:26","startHours":23.663288080277827,"endHours":24.43159058488526,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:17","end":"07:44","startHours":6.285170548025804,"endHours":7.725737744164739,"quality":"inauspicious"},{"name":"Chala","start":"07:44","end":"09:10","startHours":7.725737744164739,"endHours":9.166304940303675,"quality":"neutral"},{"name":"Labha","start":"09:10","end":"10:36","startHours":9.166304940303675,"endHours":10.60687213644261,"quality":"auspicious"},{"name":"Amṛta","start":"10:36","end":"12:03","startHours":10.60687213644261,"endHours":12.047439332581543,"quality":"auspicious"},{"name":"Kāla","start":"12:03","end":"13:29","startHours":12.047439332581543,"endHours":13.48800652872048,"quality":"inauspicious"},{"name":"Śubha","start":"13:29","end":"14:56","startHours":13.48800652872048,"endHours":14.928573724859415,"quality":"auspicious"},{"name":"Roga","start":"14:56","end":"16:22","startHours":14.928573724859415,"endHours":16.369140920998348,"quality":"inauspicious"},{"name":"Udveg","start":"16:22","end":"17:49","startHours":16.369140920998348,"endHours":17.809708117137284,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:49","end":"19:22","startHours":17.809708117137284,"endHours":19.369140920998348,"quality":"auspicious"},{"name":"Roga","start":"19:22","end":"20:56","startHours":19.369140920998348,"endHours":20.92857372485941,"quality":"inauspicious"},{"name":"Udveg","start":"20:56","end":"22:29","startHours":20.92857372485941,"endHours":22.48800652872048,"quality":"inauspicious"},{"name":"Chala","start":"22:29","end":"00:03","startHours":22.48800652872048,"endHours":24.047439332581543,"quality":"neutral"},{"name":"Labha","start":"00:03","end":"01:36","startHours":24.047439332581543,"endHours":25.606872136442608,"quality":"auspicious"},{"name":"Amṛta","start":"01:36","end":"03:10","startHours":25.606872136442608,"endHours":27.166304940303675,"quality":"auspicious"},{"name":"Kāla","start":"03:10","end":"04:44","startHours":27.166304940303675,"endHours":28.72573774416474,"quality":"inauspicious"},{"name":"Śubha","start":"04:44","end":"06:17","startHours":28.72573774416474,"endHours":30.285170548025803,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:17","end":"07:17","startHours":6.285170548025804,"endHours":7.285170548025804,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:17","end":"08:17","startHours":7.285170548025804,"endHours":8.285170548025803,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:17","end":"09:17","startHours":8.285170548025803,"endHours":9.285170548025803,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:17","end":"10:17","startHours":9.285170548025803,"endHours":10.285170548025803,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:17","end":"11:17","startHours":10.285170548025803,"endHours":11.285170548025803,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:17","end":"12:17","startHours":11.285170548025803,"endHours":12.285170548025803,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:17","end":"13:17","startHours":12.285170548025803,"endHours":13.285170548025803,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:17","end":"14:17","startHours":13.285170548025803,"endHours":14.285170548025803,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:17","end":"15:17","startHours":14.285170548025803,"endHours":15.285170548025803,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:17","end":"16:17","startHours":15.285170548025803,"endHours":16.285170548025803,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:17","end":"17:17","startHours":16.285170548025803,"endHours":17.285170548025803,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:17","end":"18:17","startHours":17.285170548025803,"endHours":18.285170548025803,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:17","end":"19:17","startHours":18.285170548025803,"endHours":19.285170548025803,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:17","end":"20:17","startHours":19.285170548025803,"endHours":20.285170548025803,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:17","end":"21:17","startHours":20.285170548025803,"endHours":21.285170548025803,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:17","end":"22:17","startHours":21.285170548025803,"endHours":22.285170548025803,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:17","end":"23:17","startHours":22.285170548025803,"endHours":23.285170548025803,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:17","end":"00:17","startHours":23.285170548025803,"endHours":24.285170548025803,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:17","end":"01:17","startHours":24.285170548025803,"endHours":25.285170548025803,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:17","end":"02:17","startHours":25.285170548025803,"endHours":26.285170548025803,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:17","end":"03:17","startHours":26.285170548025803,"endHours":27.285170548025803,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:17","end":"04:17","startHours":27.285170548025803,"endHours":28.285170548025803,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:17","end":"05:17","startHours":28.285170548025803,"endHours":29.285170548025803,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:17","end":"06:17","startHours":29.285170548025803,"endHours":30.285170548025803,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-10.281860517491355,"eotMinutes":-14.08475995489261,"ayanamsa":23.5896}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Caturthī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"kumbha-sankranti","name":"Kumbha Saṅkrānti","name_sanskrit":"कुम्भ सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aquarius; Kumbha-māsa begins.","vrata":false,"detection":{"sun_rashi":"Kumbha"},"precedence":5},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":"ranchi"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 22, 1981 CE · Ranchi, Jharkhand · Vidhyamitra","description":"February 22, 1981 CE for Ranchi, Jharkhand: Kṛṣṇa Caturthī, sūryodaya 06:17, sūryāsta 17:49.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ranchi/1981-02-22","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ranchi/1981-02-22","sa":"https://sa.vidhyamitra.com/city/ranchi/1981-02-22","hi":"https://hi.vidhyamitra.com/city/ranchi/1981-02-22","x-default":"https://vidhyamitra.com/city/ranchi/1981-02-22"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-19T05:43:26.904Z","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":"2026-05-19T05:43:26.904Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-19T05:43:26.904Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}