{"id":"vidhyamitra:city-day:rishikesh:1981-02-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1981-02-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-02-23","date_display":"February 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":2,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444658.770833,"kali_year":5082,"ahargana":1856193.2708,"sun":{"sidereal_longitude":310.9309,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":179.9461,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":229.0152,"elapsed_within_tithi_degrees":1.0152},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":179.9461,"elapsed_within_degrees":6.6127},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":130.8769},"karana":{"half_tithi_index":38,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444658.770833,"ahargana":1856193.2708,"kali_year":5082,"ayanamsa_lahiri":23.5896,"grahas":{"sun":{"sidereal_longitude":310.75231499999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":176.99101500000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false,"latitude":4.2281},"mars":{"sidereal_longitude":319.403015,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":299.612715,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":165.54181500000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"venus":{"sidereal_longitude":300.20581500000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":164.91221500000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":109.9479,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":289.9479,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"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":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444658.770833,"kali_year":5082,"ahargana":1856193.2708,"sun":{"sidereal_longitude":310.9309,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":179.9461,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":229.0152,"elapsed_within_tithi_degrees":1.0152},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":179.9461,"elapsed_within_degrees":6.6127},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":130.8769},"karana":{"half_tithi_index":38,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.228,"elongation":130.985},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.228,"opposition_distance":49.015}},"eclipse_window_40days":[{"offset_days":-18,"type":"solar","occurs":true,"moon_latitude":-0.15,"elongation":0.162}]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"06:50","sunsetLocal":"18:12","solarNoonLocal":"12:31","dayLengthHours":11.3557252166866,"dayLengthDisplay":"11 Hours 21 Mins 21 Secs","nightLengthDisplay":"12 Hours 38 Mins 39 Secs","moonriseLocal":"21:52","moonsetLocal":"09:20","rahuKala":{"name":"Rāhu Kāla","start":"08:15","end":"09:41","startHours":8.256567993066916,"endHours":9.676033645152742,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:06","end":"12:31","startHours":11.095499297238566,"endHours":12.51496494932439,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:56","end":"15:21","startHours":13.934430601410217,"endHours":15.353896253496043,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:29","end":"09:52","startHours":9.486771558207964,"endHours":9.865295732097518,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:19","end":"07:37","startHours":7.310257558343033,"endHours":7.613076897454675,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:08","end":"12:54","startHours":12.136440775434837,"endHours":12.893489123213945,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:19","end":"06:05","startHours":5.323005645422878,"endHours":6.080053993201984,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:53","end":"06:50","startHours":5.890791906257208,"endHours":6.837102340981091,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:24","end":"15:10","startHours":14.407585818772159,"endHours":15.164634166551265,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:00","end":"18:24","startHours":17.99282755766769,"endHours":18.39282755766769,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:12","end":"18:40","startHours":18.19282755766769,"endHours":18.665982775029633,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:57","end":"19:42","startHours":17.94282755766769,"endHours":19.69282755766769,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:08","end":"00:54","startHours":24.13644077543484,"endHours":24.893489123213943,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:50","end":"08:15","startHours":6.837102340981091,"endHours":8.256567993066916,"quality":"auspicious"},{"name":"Kāla","start":"08:15","end":"09:41","startHours":8.256567993066916,"endHours":9.676033645152742,"quality":"inauspicious"},{"name":"Śubha","start":"09:41","end":"11:06","startHours":9.676033645152742,"endHours":11.095499297238566,"quality":"auspicious"},{"name":"Roga","start":"11:06","end":"12:31","startHours":11.095499297238566,"endHours":12.51496494932439,"quality":"inauspicious"},{"name":"Udveg","start":"12:31","end":"13:56","startHours":12.51496494932439,"endHours":13.934430601410217,"quality":"inauspicious"},{"name":"Chala","start":"13:56","end":"15:21","startHours":13.934430601410217,"endHours":15.353896253496043,"quality":"neutral"},{"name":"Labha","start":"15:21","end":"16:46","startHours":15.353896253496043,"endHours":16.773361905581865,"quality":"auspicious"},{"name":"Amṛta","start":"16:46","end":"18:12","startHours":16.773361905581865,"endHours":18.19282755766769,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:12","end":"19:46","startHours":18.19282755766769,"endHours":19.773361905581865,"quality":"neutral"},{"name":"Labha","start":"19:46","end":"21:21","startHours":19.773361905581865,"endHours":21.35389625349604,"quality":"auspicious"},{"name":"Amṛta","start":"21:21","end":"22:56","startHours":21.35389625349604,"endHours":22.934430601410217,"quality":"auspicious"},{"name":"Kāla","start":"22:56","end":"00:31","startHours":22.934430601410217,"endHours":24.51496494932439,"quality":"inauspicious"},{"name":"Śubha","start":"00:31","end":"02:06","startHours":24.51496494932439,"endHours":26.095499297238565,"quality":"auspicious"},{"name":"Roga","start":"02:06","end":"03:41","startHours":26.095499297238565,"endHours":27.676033645152742,"quality":"inauspicious"},{"name":"Udveg","start":"03:41","end":"05:15","startHours":27.676033645152742,"endHours":29.256567993066916,"quality":"inauspicious"},{"name":"Chala","start":"05:15","end":"06:50","startHours":29.256567993066916,"endHours":30.83710234098109,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:50","end":"07:50","startHours":6.837102340981091,"endHours":7.837102340981091,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:50","end":"08:50","startHours":7.837102340981091,"endHours":8.83710234098109,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:50","end":"09:50","startHours":8.83710234098109,"endHours":9.83710234098109,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:50","end":"10:50","startHours":9.83710234098109,"endHours":10.83710234098109,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:50","end":"11:50","startHours":10.83710234098109,"endHours":11.83710234098109,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:50","end":"12:50","startHours":11.83710234098109,"endHours":12.83710234098109,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:50","end":"13:50","startHours":12.83710234098109,"endHours":13.83710234098109,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:50","end":"14:50","startHours":13.83710234098109,"endHours":14.83710234098109,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:50","end":"15:50","startHours":14.83710234098109,"endHours":15.83710234098109,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:50","end":"16:50","startHours":15.83710234098109,"endHours":16.83710234098109,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:50","end":"17:50","startHours":16.83710234098109,"endHours":17.83710234098109,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:50","end":"18:50","startHours":17.83710234098109,"endHours":18.83710234098109,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:50","end":"19:50","startHours":18.83710234098109,"endHours":19.83710234098109,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:50","end":"20:50","startHours":19.83710234098109,"endHours":20.83710234098109,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:50","end":"21:50","startHours":20.83710234098109,"endHours":21.83710234098109,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:50","end":"22:50","startHours":21.83710234098109,"endHours":22.83710234098109,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:50","end":"23:50","startHours":22.83710234098109,"endHours":23.83710234098109,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:50","end":"00:50","startHours":23.83710234098109,"endHours":24.83710234098109,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:50","end":"01:50","startHours":24.83710234098109,"endHours":25.83710234098109,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:50","end":"02:50","startHours":25.83710234098109,"endHours":26.83710234098109,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:50","end":"03:50","startHours":26.83710234098109,"endHours":27.83710234098109,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:50","end":"04:50","startHours":27.83710234098109,"endHours":28.83710234098109,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:50","end":"05:50","startHours":28.83710234098109,"endHours":29.83710234098109,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:50","end":"06:50","startHours":29.83710234098109,"endHours":30.83710234098109,"planetary_lord":"Venus"}],"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":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"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":-9.916807370965897,"eotMinutes":-13.968296959463448,"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 Pañcamī · 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}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 23, 1981 CE · Ṛṣikeśa · Vidhyamitra","description":"February 23, 1981 CE for Ṛṣikeśa: Kṛṣṇa Pañcamī, sūryodaya 06:50, sūryāsta 18:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1981-02-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1981-02-23","sa":"https://sa.vidhyamitra.com/city/rishikesh/1981-02-23","hi":"https://hi.vidhyamitra.com/city/rishikesh/1981-02-23","x-default":"https://vidhyamitra.com/city/rishikesh/1981-02-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T18:44:59.405Z","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":"2026-05-18T18:44:59.405Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T18:44:59.405Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}