{"id":"vidhyamitra:city-day:rishikesh:1988-01-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1988-01-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1988-01-27","date_display":"January 27, 1988 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":1988,"month":1,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447187.770833,"kali_year":5089,"ahargana":1858722.2708,"sun":{"sidereal_longitude":282.6294,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":23.1681,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":100.5387,"elapsed_within_tithi_degrees":4.5387},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3,"moon_longitude":23.1681,"elapsed_within_degrees":9.8348},"yoga":{"number":23,"name":"Śubha","sum_longitude":305.7975},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1988,"month":1,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447187.770833,"ahargana":1858722.2708,"kali_year":5089,"ayanamsa_lahiri":23.6864,"grahas":{"sun":{"sidereal_longitude":282.623389,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"moon":{"sidereal_longitude":26.09218900000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false,"latitude":3.3012},"mars":{"sidereal_longitude":228.78578900000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":301.311689,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":359.697389,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":320.299489,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":244.3070889999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":335.9493,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":155.9493,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":1988,"month":1,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447187.770833,"kali_year":5089,"ahargana":1858722.2708,"sun":{"sidereal_longitude":282.6294,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":23.1681,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":100.5387,"elapsed_within_tithi_degrees":4.5387},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3,"moon_longitude":23.1681,"elapsed_within_degrees":9.8348},"yoga":{"number":23,"name":"Śubha","sum_longitude":305.7975},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.301,"elongation":100.539},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.301,"opposition_distance":79.461}},"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":"07:11","sunsetLocal":"17:49","solarNoonLocal":"12:30","dayLengthHours":10.630602872170485,"dayLengthDisplay":"10 Hours 37 Mins 50 Secs","nightLengthDisplay":"13 Hours 22 Mins 10 Secs","moonriseLocal":"12:38","moonsetLocal":"02:09","rahuKala":{"name":"Rāhu Kāla","start":"12:30","end":"13:49","startHours":12.494906758447986,"endHours":13.823732117469298,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:31","end":"09:50","startHours":8.508430681384056,"endHours":9.837256040405364,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:10","end":"12:30","startHours":11.166081399426677,"endHours":12.494906758447986,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:40","end":"10:01","startHours":9.66007932586919,"endHours":10.01443275494154,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:37","end":"07:54","startHours":7.622547108703181,"endHours":7.90602985196106,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:08","end":"12:51","startHours":12.140553329375637,"endHours":12.849260187520334,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:46","end":"06:28","startHours":5.762191606073346,"endHours":6.470898464218045,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:18","end":"07:11","startHours":6.29372174968187,"endHours":7.179605322362744,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:16","end":"14:59","startHours":14.266673903809735,"endHours":14.975380761954435,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:37","end":"18:01","startHours":17.61020819453323,"endHours":18.010208194533227,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:49","end":"18:15","startHours":17.810208194533228,"endHours":18.253149980873665,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:34","end":"19:19","startHours":17.560208194533228,"endHours":19.310208194533228,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:08","end":"00:51","startHours":24.140553329375635,"endHours":24.849260187520336,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:11","end":"08:31","startHours":7.179605322362744,"endHours":8.508430681384056,"quality":"auspicious"},{"name":"Amṛta","start":"08:31","end":"09:50","startHours":8.508430681384056,"endHours":9.837256040405364,"quality":"auspicious"},{"name":"Kāla","start":"09:50","end":"11:10","startHours":9.837256040405364,"endHours":11.166081399426677,"quality":"inauspicious"},{"name":"Śubha","start":"11:10","end":"12:30","startHours":11.166081399426677,"endHours":12.494906758447986,"quality":"auspicious"},{"name":"Roga","start":"12:30","end":"13:49","startHours":12.494906758447986,"endHours":13.823732117469298,"quality":"inauspicious"},{"name":"Udveg","start":"13:49","end":"15:09","startHours":13.823732117469298,"endHours":15.152557476490607,"quality":"inauspicious"},{"name":"Chala","start":"15:09","end":"16:29","startHours":15.152557476490607,"endHours":16.48138283551192,"quality":"neutral"},{"name":"Labha","start":"16:29","end":"17:49","startHours":16.48138283551192,"endHours":17.810208194533228,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:49","end":"19:29","startHours":17.810208194533228,"endHours":19.481382835511916,"quality":"inauspicious"},{"name":"Chala","start":"19:29","end":"21:09","startHours":19.481382835511916,"endHours":21.152557476490607,"quality":"neutral"},{"name":"Labha","start":"21:09","end":"22:49","startHours":21.152557476490607,"endHours":22.823732117469298,"quality":"auspicious"},{"name":"Amṛta","start":"22:49","end":"00:30","startHours":22.823732117469298,"endHours":24.494906758447986,"quality":"auspicious"},{"name":"Kāla","start":"00:30","end":"02:10","startHours":24.494906758447986,"endHours":26.166081399426673,"quality":"inauspicious"},{"name":"Śubha","start":"02:10","end":"03:50","startHours":26.166081399426673,"endHours":27.837256040405364,"quality":"auspicious"},{"name":"Roga","start":"03:50","end":"05:31","startHours":27.837256040405364,"endHours":29.508430681384056,"quality":"inauspicious"},{"name":"Udveg","start":"05:31","end":"07:11","startHours":29.508430681384056,"endHours":31.179605322362743,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:11","end":"08:11","startHours":7.179605322362744,"endHours":8.179605322362743,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:11","end":"09:11","startHours":8.179605322362743,"endHours":9.179605322362743,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:11","end":"10:11","startHours":9.179605322362743,"endHours":10.179605322362743,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:11","end":"11:11","startHours":10.179605322362743,"endHours":11.179605322362743,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:11","end":"12:11","startHours":11.179605322362743,"endHours":12.179605322362743,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:11","end":"13:11","startHours":12.179605322362743,"endHours":13.179605322362743,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:11","end":"14:11","startHours":13.179605322362743,"endHours":14.179605322362743,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:11","end":"15:11","startHours":14.179605322362743,"endHours":15.179605322362743,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:11","end":"16:11","startHours":15.179605322362743,"endHours":16.179605322362743,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:11","end":"17:11","startHours":16.179605322362743,"endHours":17.179605322362743,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:11","end":"18:11","startHours":17.179605322362743,"endHours":18.179605322362743,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:11","end":"19:11","startHours":18.179605322362743,"endHours":19.179605322362743,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:11","end":"20:11","startHours":19.179605322362743,"endHours":20.179605322362743,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:11","end":"21:11","startHours":20.179605322362743,"endHours":21.179605322362743,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:11","end":"22:11","startHours":21.179605322362743,"endHours":22.179605322362743,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:11","end":"23:11","startHours":22.179605322362743,"endHours":23.179605322362743,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:11","end":"00:11","startHours":23.179605322362743,"endHours":24.179605322362743,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:11","end":"01:11","startHours":24.179605322362743,"endHours":25.179605322362743,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:11","end":"02:11","startHours":25.179605322362743,"endHours":26.179605322362743,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:11","end":"03:11","startHours":26.179605322362743,"endHours":27.179605322362743,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:11","end":"04:11","startHours":27.179605322362743,"endHours":28.179605322362743,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:11","end":"05:11","startHours":28.179605322362743,"endHours":29.179605322362743,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:11","end":"06:11","startHours":29.179605322362743,"endHours":30.179605322362743,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:11","end":"07:11","startHours":30.179605322362743,"endHours":31.179605322362743,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"South-West","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-18.693383546509317,"eotMinutes":-12.76480550687915,"ayanamsa":23.6864}},"calendars":{"vikram_samvat":2045,"vikram_samvatsara":"Vṛṣa","saka_samvat":1910,"saka_samvatsara":"Vibhava","bengali_samvat":1395,"malayalam_era":1164,"nanakshahi_year":519,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Navamī · Vikram 2045 Vṛṣa · Śaka 1910 Vibhava"},"festivals":[],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","relevance":0.5}]},"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 27, 1988 CE · Ṛṣikeśa · Vidhyamitra","description":"January 27, 1988 CE for Ṛṣikeśa: Śukla Navamī, sūryodaya 07:11, sūryāsta 17:49.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1988-01-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1988-01-27","sa":"https://sa.vidhyamitra.com/city/rishikesh/1988-01-27","hi":"https://hi.vidhyamitra.com/city/rishikesh/1988-01-27","x-default":"https://vidhyamitra.com/city/rishikesh/1988-01-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T11:59:49.620Z","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":"2026-06-01T11:59:49.620Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T11:59:49.620Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}