{"id":"vidhyamitra:city-day:rishikesh:1987-03-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1987-03-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1987-03-17","date_display":"March 17, 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":3,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446871.770833,"kali_year":5088,"ahargana":1858406.2708,"sun":{"sidereal_longitude":332.4478,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":170.0868,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":197.639,"elapsed_within_tithi_degrees":5.639},"nakshatra":{"number":13,"name":"Hasta","pada":4,"moon_longitude":170.0868,"elapsed_within_degrees":10.0868},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":142.5346},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":3,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446871.770833,"ahargana":1858406.2708,"kali_year":5088,"ayanamsa_lahiri":23.6743,"grahas":{"sun":{"sidereal_longitude":332.2397619999999,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":170.108162,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false,"latitude":0.2044},"mars":{"sidereal_longitude":23.25506200000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":307.3422619999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":340.488262,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":292.653362,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":236.96676200000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":352.6925,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":172.6925,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"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":3,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446871.770833,"kali_year":5088,"ahargana":1858406.2708,"sun":{"sidereal_longitude":332.4478,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":170.0868,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":197.639,"elapsed_within_tithi_degrees":5.639},"nakshatra":{"number":13,"name":"Hasta","pada":4,"moon_longitude":170.0868,"elapsed_within_degrees":10.0868},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":142.5346},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.204,"elongation":162.361},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.204,"opposition_distance":17.639}},"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":"06:26","sunsetLocal":"18:26","solarNoonLocal":"12:26","dayLengthHours":12.002924711657379,"dayLengthDisplay":"12 Hours 00 Mins 11 Secs","nightLengthDisplay":"11 Hours 59 Mins 49 Secs","moonriseLocal":"19:47","moonsetLocal":"07:28","rahuKala":{"name":"Rāhu Kāla","start":"15:26","end":"16:56","startHours":15.433955201118057,"endHours":16.934320790075226,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:26","end":"10:56","startHours":9.432492845289367,"endHours":10.932858434246539,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:26","end":"13:56","startHours":12.43322402320371,"endHours":13.933589612160883,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:14","end":"09:38","startHours":9.232444100095076,"endHours":9.632541590483656,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:56","end":"07:15","startHours":6.931883530360746,"endHours":7.251961522671609,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:50","startHours":12.03312653281513,"endHours":12.83332151359229,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:50","end":"05:38","startHours":4.831371705820705,"endHours":5.631566686597863,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:26","end":"06:26","startHours":5.431517941403573,"endHours":6.431761667375022,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:14","startHours":14.433711475146609,"endHours":15.233906455923767,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:14","end":"18:38","startHours":18.2346863790324,"endHours":18.6346863790324,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:26","end":"18:56","startHours":18.4346863790324,"endHours":18.934808242018125,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:11","end":"19:56","startHours":18.1846863790324,"endHours":19.9346863790324,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:50","startHours":24.033126532815132,"endHours":24.83332151359229,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:26","end":"07:56","startHours":6.431761667375022,"endHours":7.932127256332194,"quality":"inauspicious"},{"name":"Udveg","start":"07:56","end":"09:26","startHours":7.932127256332194,"endHours":9.432492845289367,"quality":"inauspicious"},{"name":"Chala","start":"09:26","end":"10:56","startHours":9.432492845289367,"endHours":10.932858434246539,"quality":"neutral"},{"name":"Labha","start":"10:56","end":"12:26","startHours":10.932858434246539,"endHours":12.43322402320371,"quality":"auspicious"},{"name":"Amṛta","start":"12:26","end":"13:56","startHours":12.43322402320371,"endHours":13.933589612160883,"quality":"auspicious"},{"name":"Kāla","start":"13:56","end":"15:26","startHours":13.933589612160883,"endHours":15.433955201118057,"quality":"inauspicious"},{"name":"Śubha","start":"15:26","end":"16:56","startHours":15.433955201118057,"endHours":16.934320790075226,"quality":"auspicious"},{"name":"Roga","start":"16:56","end":"18:26","startHours":16.934320790075226,"endHours":18.4346863790324,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:26","end":"19:56","startHours":18.4346863790324,"endHours":19.934320790075226,"quality":"inauspicious"},{"name":"Śubha","start":"19:56","end":"21:26","startHours":19.934320790075226,"endHours":21.433955201118053,"quality":"auspicious"},{"name":"Roga","start":"21:26","end":"22:56","startHours":21.433955201118053,"endHours":22.933589612160883,"quality":"inauspicious"},{"name":"Udveg","start":"22:56","end":"00:26","startHours":22.933589612160883,"endHours":24.43322402320371,"quality":"inauspicious"},{"name":"Chala","start":"00:26","end":"01:56","startHours":24.43322402320371,"endHours":25.932858434246537,"quality":"neutral"},{"name":"Labha","start":"01:56","end":"03:26","startHours":25.932858434246537,"endHours":27.432492845289367,"quality":"auspicious"},{"name":"Amṛta","start":"03:26","end":"04:56","startHours":27.432492845289367,"endHours":28.932127256332194,"quality":"auspicious"},{"name":"Kāla","start":"04:56","end":"06:26","startHours":28.932127256332194,"endHours":30.43176166737502,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:26","end":"07:26","startHours":6.431761667375022,"endHours":7.431761667375022,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:26","end":"08:26","startHours":7.431761667375022,"endHours":8.43176166737502,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:26","end":"09:26","startHours":8.43176166737502,"endHours":9.43176166737502,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:26","end":"10:26","startHours":9.43176166737502,"endHours":10.43176166737502,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:26","end":"11:26","startHours":10.43176166737502,"endHours":11.43176166737502,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:26","end":"12:26","startHours":11.43176166737502,"endHours":12.43176166737502,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:26","end":"13:26","startHours":12.43176166737502,"endHours":13.43176166737502,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:26","end":"14:26","startHours":13.43176166737502,"endHours":14.43176166737502,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:26","end":"15:26","startHours":14.43176166737502,"endHours":15.43176166737502,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:26","end":"16:26","startHours":15.43176166737502,"endHours":16.43176166737502,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:26","end":"17:26","startHours":16.43176166737502,"endHours":17.43176166737502,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:26","end":"18:26","startHours":17.43176166737502,"endHours":18.43176166737502,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:26","end":"19:26","startHours":18.43176166737502,"endHours":19.43176166737502,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:26","end":"20:26","startHours":19.43176166737502,"endHours":20.43176166737502,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:26","end":"21:26","startHours":20.43176166737502,"endHours":21.43176166737502,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:26","end":"22:26","startHours":21.43176166737502,"endHours":22.43176166737502,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:26","end":"23:26","startHours":22.43176166737502,"endHours":23.43176166737502,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:26","end":"00:26","startHours":23.43176166737502,"endHours":24.43176166737502,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:26","end":"01:26","startHours":24.43176166737502,"endHours":25.43176166737502,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:26","end":"02:26","startHours":25.43176166737502,"endHours":26.43176166737502,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:26","end":"03:26","startHours":26.43176166737502,"endHours":27.43176166737502,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:26","end":"04:26","startHours":27.43176166737502,"endHours":28.43176166737502,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:26","end":"05:26","startHours":28.43176166737502,"endHours":29.43176166737502,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:26","end":"06:26","startHours":29.43176166737502,"endHours":30.43176166737502,"planetary_lord":"Saturn"}],"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":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"North","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-1.6239505186300178,"eotMinutes":-9.063841392222612,"ayanamsa":23.6743}},"calendars":{"vikram_samvat":2044,"vikram_samvatsara":"Vikrama","saka_samvat":1909,"saka_samvatsara":"Prabhava","bengali_samvat":1394,"malayalam_era":1163,"nanakshahi_year":518,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Phālguna","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Kṛṣṇa Dvitīyā · Vikram 2044 Vikrama · Śaka 1909 Prabhava"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 March 17, 1987 CE · Ṛṣikeśa · Vidhyamitra","description":"March 17, 1987 CE for Ṛṣikeśa: Kṛṣṇa Dvitīyā, sūryodaya 06:26, sūryāsta 18:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1987-03-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1987-03-17","sa":"https://sa.vidhyamitra.com/city/rishikesh/1987-03-17","hi":"https://hi.vidhyamitra.com/city/rishikesh/1987-03-17","x-default":"https://vidhyamitra.com/city/rishikesh/1987-03-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:53:13.026Z","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":"2026-05-31T18:53:13.026Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:53:13.026Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}