{"id":"vidhyamitra:city-day:rishikesh:1987-09-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1987-09-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1987-09-07","date_display":"September 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1987,"month":9,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447045.770833,"kali_year":5089,"ahargana":1858580.2708,"sun":{"sidereal_longitude":139.5456,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":310.9992,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":171.4536,"elapsed_within_tithi_degrees":3.4536},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":310.9992,"elapsed_within_degrees":4.3325},"yoga":{"number":7,"name":"Sukarma","sum_longitude":90.5448},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":9,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447045.770833,"ahargana":1858580.2708,"kali_year":5089,"ayanamsa_lahiri":23.6809,"grahas":{"sun":{"sidereal_longitude":140.22121400000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":310.220414,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false,"latitude":-2.4144},"mars":{"sidereal_longitude":136.18041399999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":155.54031399999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":6.218514000000027,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":144.46061399999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":230.81861400000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":343.4731,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":163.4731,"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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1987,"month":9,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447045.770833,"kali_year":5089,"ahargana":1858580.2708,"sun":{"sidereal_longitude":139.5456,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":310.9992,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":171.4536,"elapsed_within_tithi_degrees":3.4536},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":310.9992,"elapsed_within_degrees":4.3325},"yoga":{"number":7,"name":"Sukarma","sum_longitude":90.5448},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.414,"elongation":171.454},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.414,"opposition_distance":8.546}},"eclipse_window_40days":[{"offset_days":16,"type":"solar","occurs":true,"moon_latitude":0.684,"elongation":1.231}]},"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":"05:56","sunsetLocal":"18:33","solarNoonLocal":"12:14","dayLengthHours":12.620946351608342,"dayLengthDisplay":"12 Hours 37 Mins 15 Secs","nightLengthDisplay":"11 Hours 22 Mins 45 Secs","moonriseLocal":"17:55","moonsetLocal":"05:13","rahuKala":{"name":"Rāhu Kāla","start":"07:30","end":"09:05","startHours":7.506670135296162,"endHours":9.084288429247204,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:40","end":"12:14","startHours":10.661906723198246,"endHours":12.23952501714929,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:49","end":"15:24","startHours":13.817143311100331,"endHours":15.394761605051375,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:18","startHours":8.873939323387065,"endHours":9.294637535107343,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:27","end":"06:47","startHours":6.4549246059954655,"endHours":6.791483175371688,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:40","startHours":11.81882680542901,"endHours":12.660223228869567,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:15","end":"05:05","startHours":4.2462589944640055,"endHours":5.087655417904562,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:53","end":"05:56","startHours":4.877306312044423,"endHours":5.929051841345118,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:21","end":"15:11","startHours":14.343016075750679,"endHours":15.184412499191236,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:21","end":"18:45","startHours":18.34999819295346,"endHours":18.74999819295346,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:33","end":"19:05","startHours":18.54999819295346,"endHours":19.075870957603808,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:18","end":"20:03","startHours":18.29999819295346,"endHours":20.04999819295346,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:40","startHours":23.818826805429012,"endHours":24.66022322886957,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:56","end":"07:30","startHours":5.929051841345118,"endHours":7.506670135296162,"quality":"auspicious"},{"name":"Kāla","start":"07:30","end":"09:05","startHours":7.506670135296162,"endHours":9.084288429247204,"quality":"inauspicious"},{"name":"Śubha","start":"09:05","end":"10:40","startHours":9.084288429247204,"endHours":10.661906723198246,"quality":"auspicious"},{"name":"Roga","start":"10:40","end":"12:14","startHours":10.661906723198246,"endHours":12.23952501714929,"quality":"inauspicious"},{"name":"Udveg","start":"12:14","end":"13:49","startHours":12.23952501714929,"endHours":13.817143311100331,"quality":"inauspicious"},{"name":"Chala","start":"13:49","end":"15:24","startHours":13.817143311100331,"endHours":15.394761605051375,"quality":"neutral"},{"name":"Labha","start":"15:24","end":"16:58","startHours":15.394761605051375,"endHours":16.97237989900242,"quality":"auspicious"},{"name":"Amṛta","start":"16:58","end":"18:33","startHours":16.97237989900242,"endHours":18.54999819295346,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:33","end":"19:58","startHours":18.54999819295346,"endHours":19.972379899002416,"quality":"neutral"},{"name":"Labha","start":"19:58","end":"21:24","startHours":19.972379899002416,"endHours":21.394761605051375,"quality":"auspicious"},{"name":"Amṛta","start":"21:24","end":"22:49","startHours":21.394761605051375,"endHours":22.81714331110033,"quality":"auspicious"},{"name":"Kāla","start":"22:49","end":"00:14","startHours":22.81714331110033,"endHours":24.23952501714929,"quality":"inauspicious"},{"name":"Śubha","start":"00:14","end":"01:40","startHours":24.23952501714929,"endHours":25.661906723198246,"quality":"auspicious"},{"name":"Roga","start":"01:40","end":"03:05","startHours":25.661906723198246,"endHours":27.084288429247202,"quality":"inauspicious"},{"name":"Udveg","start":"03:05","end":"04:30","startHours":27.084288429247202,"endHours":28.50667013529616,"quality":"inauspicious"},{"name":"Chala","start":"04:30","end":"05:56","startHours":28.50667013529616,"endHours":29.929051841345117,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:56","end":"06:56","startHours":5.929051841345118,"endHours":6.929051841345118,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:56","end":"07:56","startHours":6.929051841345118,"endHours":7.929051841345118,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:56","end":"08:56","startHours":7.929051841345118,"endHours":8.929051841345117,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:56","end":"09:56","startHours":8.929051841345117,"endHours":9.929051841345117,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:56","end":"10:56","startHours":9.929051841345117,"endHours":10.929051841345117,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:56","end":"11:56","startHours":10.929051841345117,"endHours":11.929051841345117,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:56","end":"12:56","startHours":11.929051841345117,"endHours":12.929051841345117,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:56","end":"13:56","startHours":12.929051841345117,"endHours":13.929051841345117,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:56","end":"14:56","startHours":13.929051841345117,"endHours":14.929051841345117,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:56","end":"15:56","startHours":14.929051841345117,"endHours":15.929051841345117,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:56","end":"16:56","startHours":15.929051841345117,"endHours":16.929051841345117,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:56","end":"17:56","startHours":16.929051841345117,"endHours":17.929051841345117,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:56","end":"18:56","startHours":17.929051841345117,"endHours":18.929051841345117,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:56","end":"19:56","startHours":18.929051841345117,"endHours":19.929051841345117,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:56","end":"20:56","startHours":19.929051841345117,"endHours":20.929051841345117,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:56","end":"21:56","startHours":20.929051841345117,"endHours":21.929051841345117,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:56","end":"22:56","startHours":21.929051841345117,"endHours":22.929051841345117,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:56","end":"23:56","startHours":22.929051841345117,"endHours":23.929051841345117,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:56","end":"00:56","startHours":23.929051841345117,"endHours":24.929051841345117,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:56","end":"01:56","startHours":24.929051841345117,"endHours":25.929051841345117,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:56","end":"02:56","startHours":25.929051841345117,"endHours":26.929051841345117,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:56","end":"03:56","startHours":26.929051841345117,"endHours":27.929051841345117,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:56","end":"04:56","startHours":27.929051841345117,"endHours":28.929051841345117,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:56","end":"05:56","startHours":28.929051841345117,"endHours":29.929051841345117,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":6.331626084328014,"eotMinutes":2.5580989710426816,"ayanamsa":23.6809}},"calendars":{"vikram_samvat":2044,"vikram_samvatsara":"Vikrama","saka_samvat":1909,"saka_samvatsara":"Prabhava","bengali_samvat":1394,"malayalam_era":1163,"nanakshahi_year":518,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Pūrṇimā · Vikram 2044 Vikrama · Śaka 1909 Prabhava"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7, 6.34-35.","step_count":5,"url":"/walk/chandra-walk","steps":[{"label":"BG 6.5","url":"/bhagavad-gita/6/5","purpose":"Lift the self by the Self; begin the walk with inner responsibility."},{"label":"BG 6.6","url":"/bhagavad-gita/6/6","purpose":"See the mind as friend when mastered and enemy when unmastered."},{"label":"BG 6.7","url":"/bhagavad-gita/6/7","purpose":"Stabilize the conquered mind in heat/cold, honor/dishonor, pleasure/pain."},{"label":"BG 6.34","url":"/bhagavad-gita/6/34","purpose":"Name the restless mind honestly before trying to discipline it."},{"label":"BG 6.35","url":"/bhagavad-gita/6/35","purpose":"Complete with abhyāsa and vairāgya: practice and detachment."}]},"reason":"Somavāra (Monday) — 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 September 7, 1987 CE · Ṛṣikeśa · Vidhyamitra","description":"September 7, 1987 CE for Ṛṣikeśa: Śukla Pūrṇimā, sūryodaya 05:56, sūryāsta 18:33.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1987-09-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1987-09-07","sa":"https://sa.vidhyamitra.com/city/rishikesh/1987-09-07","hi":"https://hi.vidhyamitra.com/city/rishikesh/1987-09-07","x-default":"https://vidhyamitra.com/city/rishikesh/1987-09-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-08-09T15:33:09.214Z","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":"2026-08-09T15:33:09.214Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-08-09T15:33:09.214Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Goloka/Vraja Rādhā-Krishna","Vaikuṇṭha Lakṣmī-Nārāyaṇa","Mahāviṣṇu/Kāraṇodakaśāyī Viṣṇu","Garbhodakaśāyī Viṣṇu","Brahmā","Kṣīrodaka Paramātmā/Antaryāmī (Kṣīrodakaśāyī Viṣṇu)","Bhūmi","reader's own kṣetra anywhere on Bhūmi","exact reading kṣetra","reader-bhakta","chitta/vāṇī/aṅgulī","keyboard-silicon-pathways","Vidhyāmitra substrate","reader/seer","Krishna"],"antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}