{"id":"vidhyamitra:city-day:rishikesh:1987-10-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1987-10-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1987-10-11","date_display":"October 11, 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":10,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447079.770833,"kali_year":5089,"ahargana":1858614.2708,"sun":{"sidereal_longitude":172.8013,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":41.9983,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":229.197,"elapsed_within_tithi_degrees":1.197},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1,"moon_longitude":41.9983,"elapsed_within_degrees":1.9983},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":214.7996},"karana":{"half_tithi_index":38,"name":"Kaulava"},"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":1987,"month":10,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447079.770833,"ahargana":1858614.2708,"kali_year":5089,"ayanamsa_lahiri":23.6822,"grahas":{"sun":{"sidereal_longitude":173.51221499999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":41.67571499999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false,"latitude":3.9089},"mars":{"sidereal_longitude":157.91771500000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":198.17861500000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":2.7187149999999747,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":186.73271499999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":232.68351500000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":341.6717,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":161.6717,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":10,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447079.770833,"kali_year":5089,"ahargana":1858614.2708,"sun":{"sidereal_longitude":172.8013,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":41.9983,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":229.197,"elapsed_within_tithi_degrees":1.197},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1,"moon_longitude":41.9983,"elapsed_within_degrees":1.9983},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":214.7996},"karana":{"half_tithi_index":38,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.909,"elongation":130.803},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.909,"opposition_distance":49.197}},"eclipse_window_40days":[{"offset_days":-18,"type":"solar","occurs":true,"moon_latitude":0.684,"elongation":1.231},{"offset_days":-4,"type":"lunar","occurs":true,"moon_latitude":0.545,"opposition_distance":0.003}]},"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":"06:15","sunsetLocal":"17:51","solarNoonLocal":"12:03","dayLengthHours":11.605041754498636,"dayLengthDisplay":"11 Hours 36 Mins 18 Secs","nightLengthDisplay":"12 Hours 23 Mins 42 Secs","moonriseLocal":"20:21","moonsetLocal":"10:10","rahuKala":{"name":"Rāhu Kāla","start":"16:24","end":"17:51","startHours":16.400944424666488,"endHours":17.851574643978818,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:03","end":"13:30","startHours":12.0490537667295,"endHours":13.499683986041829,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:57","end":"16:24","startHours":14.950314205354157,"endHours":16.400944424666488,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:20","startHours":8.954375965529863,"endHours":9.341210690679818,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:44","end":"07:02","startHours":6.730076295917624,"endHours":7.039544076037588,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:26","startHours":11.662219041579545,"endHours":12.435888491879455,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:42","end":"05:28","startHours":4.6991939888803635,"endHours":5.472863439180272,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:17","end":"06:15","startHours":5.279446076605295,"endHours":6.246532889480181,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:59","end":"14:45","startHours":13.983227392479272,"endHours":14.756896842779181,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:39","end":"18:03","startHours":17.65157464397882,"endHours":18.051574643978817,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:51","end":"18:20","startHours":17.851574643978818,"endHours":18.335118050416263,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:36","end":"19:21","startHours":17.601574643978818,"endHours":19.351574643978818,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:26","startHours":23.662219041579547,"endHours":24.435888491879453,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:15","end":"07:42","startHours":6.246532889480181,"endHours":7.697163108792511,"quality":"inauspicious"},{"name":"Chala","start":"07:42","end":"09:09","startHours":7.697163108792511,"endHours":9.14779332810484,"quality":"neutral"},{"name":"Labha","start":"09:09","end":"10:36","startHours":9.14779332810484,"endHours":10.59842354741717,"quality":"auspicious"},{"name":"Amṛta","start":"10:36","end":"12:03","startHours":10.59842354741717,"endHours":12.0490537667295,"quality":"auspicious"},{"name":"Kāla","start":"12:03","end":"13:30","startHours":12.0490537667295,"endHours":13.499683986041829,"quality":"inauspicious"},{"name":"Śubha","start":"13:30","end":"14:57","startHours":13.499683986041829,"endHours":14.950314205354157,"quality":"auspicious"},{"name":"Roga","start":"14:57","end":"16:24","startHours":14.950314205354157,"endHours":16.400944424666488,"quality":"inauspicious"},{"name":"Udveg","start":"16:24","end":"17:51","startHours":16.400944424666488,"endHours":17.851574643978818,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:51","end":"19:24","startHours":17.851574643978818,"endHours":19.400944424666488,"quality":"auspicious"},{"name":"Roga","start":"19:24","end":"20:57","startHours":19.400944424666488,"endHours":20.95031420535416,"quality":"inauspicious"},{"name":"Udveg","start":"20:57","end":"22:30","startHours":20.95031420535416,"endHours":22.49968398604183,"quality":"inauspicious"},{"name":"Chala","start":"22:30","end":"00:03","startHours":22.49968398604183,"endHours":24.0490537667295,"quality":"neutral"},{"name":"Labha","start":"00:03","end":"01:36","startHours":24.0490537667295,"endHours":25.59842354741717,"quality":"auspicious"},{"name":"Amṛta","start":"01:36","end":"03:09","startHours":25.59842354741717,"endHours":27.14779332810484,"quality":"auspicious"},{"name":"Kāla","start":"03:09","end":"04:42","startHours":27.14779332810484,"endHours":28.697163108792513,"quality":"inauspicious"},{"name":"Śubha","start":"04:42","end":"06:15","startHours":28.697163108792513,"endHours":30.246532889480182,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:15","end":"07:15","startHours":6.246532889480181,"endHours":7.246532889480181,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:15","end":"08:15","startHours":7.246532889480181,"endHours":8.246532889480182,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:15","end":"09:15","startHours":8.246532889480182,"endHours":9.246532889480182,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:15","end":"10:15","startHours":9.246532889480182,"endHours":10.246532889480182,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:15","end":"11:15","startHours":10.246532889480182,"endHours":11.246532889480182,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:15","end":"12:15","startHours":11.246532889480182,"endHours":12.246532889480182,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:15","end":"13:15","startHours":12.246532889480182,"endHours":13.246532889480182,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:15","end":"14:15","startHours":13.246532889480182,"endHours":14.246532889480182,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:15","end":"15:15","startHours":14.246532889480182,"endHours":15.246532889480182,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:15","end":"16:15","startHours":15.246532889480182,"endHours":16.246532889480182,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:15","end":"17:15","startHours":16.246532889480182,"endHours":17.246532889480182,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:15","end":"18:15","startHours":17.246532889480182,"endHours":18.246532889480182,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:15","end":"19:15","startHours":18.246532889480182,"endHours":19.246532889480182,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:15","end":"20:15","startHours":19.246532889480182,"endHours":20.246532889480182,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:15","end":"21:15","startHours":20.246532889480182,"endHours":21.246532889480182,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:15","end":"22:15","startHours":21.246532889480182,"endHours":22.246532889480182,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:15","end":"23:15","startHours":22.246532889480182,"endHours":23.246532889480182,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:15","end":"00:15","startHours":23.246532889480182,"endHours":24.246532889480182,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:15","end":"01:15","startHours":24.246532889480182,"endHours":25.246532889480182,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:15","end":"02:15","startHours":25.246532889480182,"endHours":26.246532889480182,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:15","end":"03:15","startHours":26.246532889480182,"endHours":27.246532889480182,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:15","end":"04:15","startHours":27.246532889480182,"endHours":28.246532889480182,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:15","end":"05:15","startHours":28.246532889480182,"endHours":29.246532889480182,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:15","end":"06:15","startHours":29.246532889480182,"endHours":30.246532889480182,"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-6.752207253948722,"eotMinutes":13.986373996230075,"ayanamsa":23.6822}},"calendars":{"vikram_samvat":2044,"vikram_samvatsara":"Vikrama","saka_samvat":1909,"saka_samvatsara":"Prabhava","bengali_samvat":1394,"malayalam_era":1163,"nanakshahi_year":518,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Pañcamī · Vikram 2044 Vikrama · Śaka 1909 Prabhava"},"festivals":[],"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":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","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 October 11, 1987 CE · Ṛṣikeśa · Vidhyamitra","description":"October 11, 1987 CE for Ṛṣikeśa: Kṛṣṇa Pañcamī, sūryodaya 06:15, sūryāsta 17:51.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1987-10-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1987-10-11","sa":"https://sa.vidhyamitra.com/city/rishikesh/1987-10-11","hi":"https://hi.vidhyamitra.com/city/rishikesh/1987-10-11","x-default":"https://vidhyamitra.com/city/rishikesh/1987-10-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T23:54:57.901Z","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":"2026-05-31T23:54:57.901Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T23:54:57.901Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}