{"id":"vidhyamitra:city-day:rishikesh:1987-07-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1987-07-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1987-07-16","date_display":"July 16, 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":7,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446992.770833,"kali_year":5089,"ahargana":1858527.2708,"sun":{"sidereal_longitude":88.9222,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":333.4801,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":244.558,"elapsed_within_tithi_degrees":4.558},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1,"moon_longitude":333.4801,"elapsed_within_degrees":0.1468},"yoga":{"number":5,"name":"Śobhana","sum_longitude":62.4023},"karana":{"half_tithi_index":40,"name":"Gara"},"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":7,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446992.770833,"ahargana":1858527.2708,"kali_year":5089,"ayanamsa_lahiri":23.6789,"grahas":{"sun":{"sidereal_longitude":89.325739,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"moon":{"sidereal_longitude":336.778539,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false,"latitude":-0.9961},"mars":{"sidereal_longitude":102.48253899999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":73.73113899999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":4.854738999999995,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":79.00993900000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":231.447539,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":346.2813,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":166.2813,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"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":7,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446992.770833,"kali_year":5089,"ahargana":1858527.2708,"sun":{"sidereal_longitude":88.9222,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":333.4801,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":244.558,"elapsed_within_tithi_degrees":4.558},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1,"moon_longitude":333.4801,"elapsed_within_degrees":0.1468},"yoga":{"number":5,"name":"Śobhana","sum_longitude":62.4023},"karana":{"half_tithi_index":40,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.996,"elongation":115.442},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.996,"opposition_distance":64.558}},"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":"05:26","sunsetLocal":"19:20","solarNoonLocal":"12:23","dayLengthHours":13.898712325944658,"dayLengthDisplay":"13 Hours 53 Mins 55 Secs","nightLengthDisplay":"10 Hours 06 Mins 05 Secs","moonriseLocal":"22:49","moonsetLocal":"10:56","rahuKala":{"name":"Rāhu Kāla","start":"14:07","end":"15:51","startHours":14.114211384347701,"endHours":15.851550425090782,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:26","end":"07:10","startHours":5.427516180632289,"endHours":7.164855221375372,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:54","end":"10:38","startHours":8.902194262118453,"endHours":10.639533302861537,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:40","end":"09:08","startHours":8.670549056686042,"endHours":9.133839467550864,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:00","end":"06:23","startHours":6.006629194213317,"endHours":6.377261522905174,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:50","startHours":11.913581932739795,"endHours":12.84016275446944,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:34","end":"04:30","startHours":3.5743545371730017,"endHours":4.5009353589026455,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:16","end":"05:26","startHours":4.2692901534702346,"endHours":5.427516180632289,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:42","end":"15:37","startHours":14.693324397928727,"endHours":15.61990521965837,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:08","end":"19:32","startHours":19.126228506576947,"endHours":19.526228506576945,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:20","end":"19:54","startHours":19.326228506576946,"endHours":19.905341520157975,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:05","end":"20:50","startHours":19.076228506576946,"endHours":20.826228506576946,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:50","startHours":23.913581932739795,"endHours":24.84016275446944,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:26","end":"07:10","startHours":5.427516180632289,"endHours":7.164855221375372,"quality":"auspicious"},{"name":"Roga","start":"07:10","end":"08:54","startHours":7.164855221375372,"endHours":8.902194262118453,"quality":"inauspicious"},{"name":"Udveg","start":"08:54","end":"10:38","startHours":8.902194262118453,"endHours":10.639533302861537,"quality":"inauspicious"},{"name":"Chala","start":"10:38","end":"12:23","startHours":10.639533302861537,"endHours":12.376872343604617,"quality":"neutral"},{"name":"Labha","start":"12:23","end":"14:07","startHours":12.376872343604617,"endHours":14.114211384347701,"quality":"auspicious"},{"name":"Amṛta","start":"14:07","end":"15:51","startHours":14.114211384347701,"endHours":15.851550425090782,"quality":"auspicious"},{"name":"Kāla","start":"15:51","end":"17:35","startHours":15.851550425090782,"endHours":17.588889465833866,"quality":"inauspicious"},{"name":"Śubha","start":"17:35","end":"19:20","startHours":17.588889465833866,"endHours":19.326228506576946,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:20","end":"20:35","startHours":19.326228506576946,"endHours":20.588889465833866,"quality":"auspicious"},{"name":"Kāla","start":"20:35","end":"21:51","startHours":20.588889465833866,"endHours":21.85155042509078,"quality":"inauspicious"},{"name":"Śubha","start":"21:51","end":"23:07","startHours":21.85155042509078,"endHours":23.114211384347698,"quality":"auspicious"},{"name":"Roga","start":"23:07","end":"00:23","startHours":23.114211384347698,"endHours":24.376872343604617,"quality":"inauspicious"},{"name":"Udveg","start":"00:23","end":"01:38","startHours":24.376872343604617,"endHours":25.639533302861537,"quality":"inauspicious"},{"name":"Chala","start":"01:38","end":"02:54","startHours":25.639533302861537,"endHours":26.902194262118453,"quality":"neutral"},{"name":"Labha","start":"02:54","end":"04:10","startHours":26.902194262118453,"endHours":28.16485522137537,"quality":"auspicious"},{"name":"Amṛta","start":"04:10","end":"05:26","startHours":28.16485522137537,"endHours":29.42751618063229,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:26","end":"06:26","startHours":5.427516180632289,"endHours":6.427516180632289,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:26","end":"07:26","startHours":6.427516180632289,"endHours":7.427516180632289,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:26","end":"08:26","startHours":7.427516180632289,"endHours":8.427516180632288,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:26","end":"09:26","startHours":8.427516180632288,"endHours":9.427516180632288,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:26","end":"10:26","startHours":9.427516180632288,"endHours":10.427516180632288,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:26","end":"11:26","startHours":10.427516180632288,"endHours":11.427516180632288,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:26","end":"12:26","startHours":11.427516180632288,"endHours":12.427516180632288,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:26","end":"13:26","startHours":12.427516180632288,"endHours":13.427516180632288,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:26","end":"14:26","startHours":13.427516180632288,"endHours":14.427516180632288,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:26","end":"15:26","startHours":14.427516180632288,"endHours":15.427516180632288,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:26","end":"16:26","startHours":15.427516180632288,"endHours":16.42751618063229,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:26","end":"17:26","startHours":16.42751618063229,"endHours":17.42751618063229,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:26","end":"18:26","startHours":17.42751618063229,"endHours":18.42751618063229,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:26","end":"19:26","startHours":18.42751618063229,"endHours":19.42751618063229,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:26","end":"20:26","startHours":19.42751618063229,"endHours":20.42751618063229,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:26","end":"21:26","startHours":20.42751618063229,"endHours":21.42751618063229,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:26","end":"22:26","startHours":21.42751618063229,"endHours":22.42751618063229,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:26","end":"23:26","startHours":22.42751618063229,"endHours":23.42751618063229,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:26","end":"00:26","startHours":23.42751618063229,"endHours":24.42751618063229,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:26","end":"01:26","startHours":24.42751618063229,"endHours":25.42751618063229,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:26","end":"02:26","startHours":25.42751618063229,"endHours":26.42751618063229,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:26","end":"03:26","startHours":26.42751618063229,"endHours":27.42751618063229,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:26","end":"04:26","startHours":27.42751618063229,"endHours":28.42751618063229,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:26","end":"05:26","startHours":28.42751618063229,"endHours":29.42751618063229,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"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":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"drikRitu":"Grīṣma (Summer) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":21.475422154330758,"eotMinutes":-5.682740616276977,"ayanamsa":23.6789}},"calendars":{"vikram_samvat":2044,"vikram_samvatsara":"Vikrama","saka_samvat":1909,"saka_samvatsara":"Prabhava","bengali_samvat":1394,"malayalam_era":1163,"nanakshahi_year":518,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Kṛṣṇa Pakṣa","solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Kṛṣṇa Ṣaṣṭhī · Vikram 2044 Vikrama · Śaka 1909 Prabhava"},"festivals":[{"id":"mithuna-sankranti","name":"Mithuna Saṅkrānti","name_sanskrit":"मिथुन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Gemini.","vrata":false,"detection":{"sun_rashi":"Mithuna"},"precedence":5}],"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 July 16, 1987 CE · Ṛṣikeśa · Vidhyamitra","description":"July 16, 1987 CE for Ṛṣikeśa: Kṛṣṇa Ṣaṣṭhī, sūryodaya 05:26, sūryāsta 19:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1987-07-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1987-07-16","sa":"https://sa.vidhyamitra.com/city/rishikesh/1987-07-16","hi":"https://hi.vidhyamitra.com/city/rishikesh/1987-07-16","x-default":"https://vidhyamitra.com/city/rishikesh/1987-07-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-19T12:09:21.503Z","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":"2026-05-19T12:09:21.503Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-19T12:09:21.503Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}