{"id":"vidhyamitra:city-day:rishikesh:1987-10-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1987-10-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1987-10-07","date_display":"October 7, 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":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447075.770833,"kali_year":5089,"ahargana":1858610.2708,"sun":{"sidereal_longitude":168.848,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":348.8514,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":180.0034,"elapsed_within_tithi_degrees":0.0034},"nakshatra":{"number":27,"name":"Revatī","pada":1,"moon_longitude":348.8514,"elapsed_within_degrees":2.1847},"yoga":{"number":12,"name":"Dhruva","sum_longitude":157.6994},"karana":{"half_tithi_index":30,"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":1987,"month":10,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447075.770833,"ahargana":1858610.2708,"kali_year":5089,"ayanamsa_lahiri":23.6821,"grahas":{"sun":{"sidereal_longitude":169.56256800000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"moon":{"sidereal_longitude":347.850268,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false,"latitude":0.5453},"mars":{"sidereal_longitude":155.34966800000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":195.24356799999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":3.2426679999999806,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":181.75596799999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":232.382968,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":341.8836,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":161.8836,"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":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447075.770833,"kali_year":5089,"ahargana":1858610.2708,"sun":{"sidereal_longitude":168.848,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":348.8514,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":180.0034,"elapsed_within_tithi_degrees":0.0034},"nakshatra":{"number":27,"name":"Revatī","pada":1,"moon_longitude":348.8514,"elapsed_within_degrees":2.1847},"yoga":{"number":12,"name":"Dhruva","sum_longitude":157.6994},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.545,"elongation":179.997},"lunar":{"type":"lunar","occurs":true,"moon_latitude":0.545,"opposition_distance":0.003}},"eclipse_window_40days":[{"offset_days":-14,"type":"solar","occurs":true,"moon_latitude":0.684,"elongation":1.231},{"offset_days":0,"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":"06:12","sunsetLocal":"17:56","solarNoonLocal":"12:04","dayLengthHours":11.723822676367277,"dayLengthDisplay":"11 Hours 43 Mins 26 Secs","nightLengthDisplay":"12 Hours 16 Mins 34 Secs","moonriseLocal":"17:44","moonsetLocal":"06:10","rahuKala":{"name":"Rāhu Kāla","start":"12:04","end":"13:32","startHours":12.06618082984967,"endHours":13.531658664395579,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:40","end":"09:08","startHours":7.669747326211941,"endHours":9.135225160757852,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:36","end":"12:04","startHours":10.60070299530376,"endHours":12.06618082984967,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:56","end":"09:20","startHours":8.93982811615173,"endHours":9.330622205363973,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:42","end":"07:00","startHours":6.692762103181335,"endHours":7.005397374551129,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:41","end":"12:27","startHours":11.675386740637428,"endHours":12.456974919061913,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:38","end":"05:25","startHours":4.641093134817061,"endHours":5.422681313241546,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:14","end":"06:12","startHours":5.227284268635425,"endHours":6.2042694916660315,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:48","startHours":14.020151275910884,"endHours":14.801739454335369,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:44","end":"18:08","startHours":17.72809216803331,"endHours":18.12809216803331,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:56","end":"18:25","startHours":17.92809216803331,"endHours":18.416584779548614,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:41","end":"19:26","startHours":17.67809216803331,"endHours":19.42809216803331,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:41","end":"00:27","startHours":23.67538674063743,"endHours":24.456974919061913,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:12","end":"07:40","startHours":6.2042694916660315,"endHours":7.669747326211941,"quality":"auspicious"},{"name":"Amṛta","start":"07:40","end":"09:08","startHours":7.669747326211941,"endHours":9.135225160757852,"quality":"auspicious"},{"name":"Kāla","start":"09:08","end":"10:36","startHours":9.135225160757852,"endHours":10.60070299530376,"quality":"inauspicious"},{"name":"Śubha","start":"10:36","end":"12:04","startHours":10.60070299530376,"endHours":12.06618082984967,"quality":"auspicious"},{"name":"Roga","start":"12:04","end":"13:32","startHours":12.06618082984967,"endHours":13.531658664395579,"quality":"inauspicious"},{"name":"Udveg","start":"13:32","end":"15:00","startHours":13.531658664395579,"endHours":14.99713649894149,"quality":"inauspicious"},{"name":"Chala","start":"15:00","end":"16:28","startHours":14.99713649894149,"endHours":16.462614333487398,"quality":"neutral"},{"name":"Labha","start":"16:28","end":"17:56","startHours":16.462614333487398,"endHours":17.92809216803331,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:56","end":"19:28","startHours":17.92809216803331,"endHours":19.4626143334874,"quality":"inauspicious"},{"name":"Chala","start":"19:28","end":"21:00","startHours":19.4626143334874,"endHours":20.99713649894149,"quality":"neutral"},{"name":"Labha","start":"21:00","end":"22:32","startHours":20.99713649894149,"endHours":22.53165866439558,"quality":"auspicious"},{"name":"Amṛta","start":"22:32","end":"00:04","startHours":22.53165866439558,"endHours":24.06618082984967,"quality":"auspicious"},{"name":"Kāla","start":"00:04","end":"01:36","startHours":24.06618082984967,"endHours":25.600702995303763,"quality":"inauspicious"},{"name":"Śubha","start":"01:36","end":"03:08","startHours":25.600702995303763,"endHours":27.13522516075785,"quality":"auspicious"},{"name":"Roga","start":"03:08","end":"04:40","startHours":27.13522516075785,"endHours":28.66974732621194,"quality":"inauspicious"},{"name":"Udveg","start":"04:40","end":"06:12","startHours":28.66974732621194,"endHours":30.204269491666032,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:12","end":"07:12","startHours":6.2042694916660315,"endHours":7.2042694916660315,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:12","end":"08:12","startHours":7.2042694916660315,"endHours":8.204269491666032,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:12","end":"09:12","startHours":8.204269491666032,"endHours":9.204269491666032,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:12","end":"10:12","startHours":9.204269491666032,"endHours":10.204269491666032,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:12","end":"11:12","startHours":10.204269491666032,"endHours":11.204269491666032,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:12","end":"12:12","startHours":11.204269491666032,"endHours":12.204269491666032,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:12","end":"13:12","startHours":12.204269491666032,"endHours":13.204269491666032,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:12","end":"14:12","startHours":13.204269491666032,"endHours":14.204269491666032,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:12","end":"15:12","startHours":14.204269491666032,"endHours":15.204269491666032,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:12","end":"16:12","startHours":15.204269491666032,"endHours":16.204269491666032,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:12","end":"17:12","startHours":16.204269491666032,"endHours":17.204269491666032,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:12","end":"18:12","startHours":17.204269491666032,"endHours":18.204269491666032,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:12","end":"19:12","startHours":18.204269491666032,"endHours":19.204269491666032,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:12","end":"20:12","startHours":19.204269491666032,"endHours":20.204269491666032,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:12","end":"21:12","startHours":20.204269491666032,"endHours":21.204269491666032,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:12","end":"22:12","startHours":21.204269491666032,"endHours":22.204269491666032,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:12","end":"23:12","startHours":22.204269491666032,"endHours":23.204269491666032,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:12","end":"00:12","startHours":23.204269491666032,"endHours":24.204269491666032,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:12","end":"01:12","startHours":24.204269491666032,"endHours":25.204269491666032,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:12","end":"02:12","startHours":25.204269491666032,"endHours":26.204269491666032,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:12","end":"03:12","startHours":26.204269491666032,"endHours":27.204269491666032,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:12","end":"04:12","startHours":27.204269491666032,"endHours":28.204269491666032,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:12","end":"05:12","startHours":28.204269491666032,"endHours":29.204269491666032,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:12","end":"06:12","startHours":29.204269491666032,"endHours":30.204269491666032,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"South-West","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-5.2282967008442345,"eotMinutes":12.958750209019716,"ayanamsa":23.6821}},"calendars":{"vikram_samvat":2044,"vikram_samvatsara":"Vikrama","saka_samvat":1909,"saka_samvatsara":"Prabhava","bengali_samvat":1394,"malayalam_era":1163,"nanakshahi_year":518,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Pratipada · Vikram 2044 Vikrama · Śaka 1909 Prabhava"},"festivals":[{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"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":[]},"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 7, 1987 CE · Ṛṣikeśa · Vidhyamitra","description":"October 7, 1987 CE for Ṛṣikeśa: Kṛṣṇa Pratipada, sūryodaya 06:12, sūryāsta 17:56.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1987-10-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1987-10-07","sa":"https://sa.vidhyamitra.com/city/rishikesh/1987-10-07","hi":"https://hi.vidhyamitra.com/city/rishikesh/1987-10-07","x-default":"https://vidhyamitra.com/city/rishikesh/1987-10-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-19T07:26:58.902Z","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":"2026-05-19T07:26:58.902Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-19T07:26:58.902Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}