{"id":"vidhyamitra:city-day:rishikesh:1987-01-22:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1987-01-22","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1987-01-22","date_display":"January 22, 1987 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":1987,"month":1,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446817.770833,"kali_year":5088,"ahargana":1858352.2708,"sun":{"sidereal_longitude":277.7718,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":180.0834,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":262.3116,"elapsed_within_tithi_degrees":10.3116},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":180.0834,"elapsed_within_degrees":6.75},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":97.8552},"karana":{"half_tithi_index":43,"name":"Bava"},"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":1987,"month":1,"day":22,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446817.770833,"ahargana":1858352.2708,"kali_year":5088,"ayanamsa_lahiri":23.6722,"grahas":{"sun":{"sidereal_longitude":277.798325,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":176.70662500000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false,"latitude":-0.355},"mars":{"sidereal_longitude":345.935625,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":284.19562500000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":328.35372499999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":231.164625,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":233.54612500000007,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":355.5537,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":175.5537,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","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":1987,"month":1,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446817.770833,"kali_year":5088,"ahargana":1858352.2708,"sun":{"sidereal_longitude":277.7718,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":180.0834,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":262.3116,"elapsed_within_tithi_degrees":10.3116},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":180.0834,"elapsed_within_degrees":6.75},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":97.8552},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.355,"elongation":97.688},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.355,"opposition_distance":82.312}},"eclipse_window_40days":[]},"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":"07:13","sunsetLocal":"17:44","solarNoonLocal":"12:28","dayLengthHours":10.531312222687111,"dayLengthDisplay":"10 Hours 31 Mins 53 Secs","nightLengthDisplay":"13 Hours 28 Mins 07 Secs","moonriseLocal":"00:00","moonsetLocal":"11:28","rahuKala":{"name":"Rāhu Kāla","start":"13:47","end":"15:06","startHours":13.790842416308212,"endHours":15.1072564441441,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:13","end":"08:32","startHours":7.208772277128768,"endHours":8.525186304964656,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:50","end":"11:09","startHours":9.841600332800546,"endHours":11.158014360636434,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:40","end":"10:01","startHours":9.666078462422426,"endHours":10.017122203178664,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:39","end":"07:56","startHours":7.647576953074064,"endHours":7.928411945679054,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:07","end":"12:50","startHours":12.123384647716085,"endHours":12.82547212922856,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:48","end":"06:30","startHours":5.80459731410382,"endHours":6.506684795616294,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:20","end":"07:13","startHours":6.331162925238175,"endHours":7.208772277128768,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:14","end":"14:56","startHours":14.229647092253508,"endHours":14.931734573765983,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:32","end":"17:56","startHours":17.54008449981588,"endHours":17.940084499815878,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:44","end":"18:11","startHours":17.74008449981588,"endHours":18.178889175761174,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:29","end":"19:14","startHours":17.49008449981588,"endHours":19.24008449981588,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:07","end":"00:50","startHours":24.123384647716087,"endHours":24.825472129228558,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:13","end":"08:32","startHours":7.208772277128768,"endHours":8.525186304964656,"quality":"auspicious"},{"name":"Roga","start":"08:32","end":"09:50","startHours":8.525186304964656,"endHours":9.841600332800546,"quality":"inauspicious"},{"name":"Udveg","start":"09:50","end":"11:09","startHours":9.841600332800546,"endHours":11.158014360636434,"quality":"inauspicious"},{"name":"Chala","start":"11:09","end":"12:28","startHours":11.158014360636434,"endHours":12.474428388472322,"quality":"neutral"},{"name":"Labha","start":"12:28","end":"13:47","startHours":12.474428388472322,"endHours":13.790842416308212,"quality":"auspicious"},{"name":"Amṛta","start":"13:47","end":"15:06","startHours":13.790842416308212,"endHours":15.1072564441441,"quality":"auspicious"},{"name":"Kāla","start":"15:06","end":"16:25","startHours":15.1072564441441,"endHours":16.42367047197999,"quality":"inauspicious"},{"name":"Śubha","start":"16:25","end":"17:44","startHours":16.42367047197999,"endHours":17.74008449981588,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:44","end":"19:25","startHours":17.74008449981588,"endHours":19.42367047197999,"quality":"auspicious"},{"name":"Kāla","start":"19:25","end":"21:06","startHours":19.42367047197999,"endHours":21.107256444144102,"quality":"inauspicious"},{"name":"Śubha","start":"21:06","end":"22:47","startHours":21.107256444144102,"endHours":22.790842416308212,"quality":"auspicious"},{"name":"Roga","start":"22:47","end":"00:28","startHours":22.790842416308212,"endHours":24.474428388472322,"quality":"inauspicious"},{"name":"Udveg","start":"00:28","end":"02:09","startHours":24.474428388472322,"endHours":26.158014360636436,"quality":"inauspicious"},{"name":"Chala","start":"02:09","end":"03:50","startHours":26.158014360636436,"endHours":27.841600332800546,"quality":"neutral"},{"name":"Labha","start":"03:50","end":"05:32","startHours":27.841600332800546,"endHours":29.525186304964656,"quality":"auspicious"},{"name":"Amṛta","start":"05:32","end":"07:13","startHours":29.525186304964656,"endHours":31.208772277128766,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:13","end":"08:13","startHours":7.208772277128768,"endHours":8.208772277128768,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:13","end":"09:13","startHours":8.208772277128768,"endHours":9.208772277128768,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:13","end":"10:13","startHours":9.208772277128768,"endHours":10.208772277128768,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:13","end":"11:13","startHours":10.208772277128768,"endHours":11.208772277128768,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:13","end":"12:13","startHours":11.208772277128768,"endHours":12.208772277128768,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:13","end":"13:13","startHours":12.208772277128768,"endHours":13.208772277128768,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:13","end":"14:13","startHours":13.208772277128768,"endHours":14.208772277128768,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:13","end":"15:13","startHours":14.208772277128768,"endHours":15.208772277128768,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:13","end":"16:13","startHours":15.208772277128768,"endHours":16.208772277128766,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:13","end":"17:13","startHours":16.208772277128766,"endHours":17.208772277128766,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:13","end":"18:13","startHours":17.208772277128766,"endHours":18.208772277128766,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:13","end":"19:13","startHours":18.208772277128766,"endHours":19.208772277128766,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:13","end":"20:13","startHours":19.208772277128766,"endHours":20.208772277128766,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:13","end":"21:13","startHours":20.208772277128766,"endHours":21.208772277128766,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:13","end":"22:13","startHours":21.208772277128766,"endHours":22.208772277128766,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:13","end":"23:13","startHours":22.208772277128766,"endHours":23.208772277128766,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:13","end":"00:13","startHours":23.208772277128766,"endHours":24.208772277128766,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:13","end":"01:13","startHours":24.208772277128766,"endHours":25.208772277128766,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:13","end":"02:13","startHours":25.208772277128766,"endHours":26.208772277128766,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:13","end":"03:13","startHours":26.208772277128766,"endHours":27.208772277128766,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:13","end":"04:13","startHours":27.208772277128766,"endHours":28.208772277128766,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:13","end":"05:13","startHours":28.208772277128766,"endHours":29.208772277128766,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:13","end":"06:13","startHours":29.208772277128766,"endHours":30.208772277128766,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:13","end":"07:13","startHours":30.208772277128766,"endHours":31.208772277128766,"planetary_lord":"Moon"}],"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":"South (Dakṣiṇa)","chandraVasa":"North-West","rahuVasa":"North-West","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-19.829940046554537,"eotMinutes":-11.536103308339323,"ayanamsa":23.6722}},"calendars":{"vikram_samvat":2044,"vikram_samvatsara":"Vikrama","saka_samvat":1909,"saka_samvatsara":"Prabhava","bengali_samvat":1394,"malayalam_era":1163,"nanakshahi_year":518,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Saptamī · Vikram 2044 Vikrama · Śaka 1909 Prabhava"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"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":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 22, 1987 CE · Ṛṣikeśa · Vidhyamitra","description":"January 22, 1987 CE for Ṛṣikeśa: Kṛṣṇa Saptamī, sūryodaya 07:13, sūryāsta 17:44.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1987-01-22","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1987-01-22","sa":"https://sa.vidhyamitra.com/city/rishikesh/1987-01-22","hi":"https://hi.vidhyamitra.com/city/rishikesh/1987-01-22","x-default":"https://vidhyamitra.com/city/rishikesh/1987-01-22"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T12:47:51.534Z","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":"2026-05-18T12:47:51.534Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T12:47:51.534Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}