{"id":"vidhyamitra:city-day:rishikesh:2088-09-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2088-09-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2088-09-13","date_display":"September 13, 2088 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":2088,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2483942.770833,"kali_year":5190,"ahargana":1895477.2708,"sun":{"sidereal_longitude":145.2289,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":120.2527,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":335.0238,"elapsed_within_tithi_degrees":11.0238},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":120.2527,"elapsed_within_degrees":0.2527},"yoga":{"number":20,"name":"Śiva","sum_longitude":265.4816},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"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":2088,"month":9,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2483942.770833,"ahargana":1895477.2708,"kali_year":5190,"ayanamsa_lahiri":25.0921,"grahas":{"sun":{"sidereal_longitude":146.16567700000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":119.57387699999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false,"latitude":-4.1788},"mars":{"sidereal_longitude":76.78807699999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":156.69067700000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":175.27947700000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":176.34737700000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":31.62237700000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":188.4925,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":8.4925,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"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":2088,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2483942.770833,"kali_year":5190,"ahargana":1895477.2708,"sun":{"sidereal_longitude":145.2289,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":120.2527,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":335.0238,"elapsed_within_tithi_degrees":11.0238},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":120.2527,"elapsed_within_degrees":0.2527},"yoga":{"number":20,"name":"Śiva","sum_longitude":265.4816},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.179,"elongation":24.976},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.179,"opposition_distance":155.024}},"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":"06:00","sunsetLocal":"18:24","solarNoonLocal":"12:12","dayLengthHours":12.3968225980587,"dayLengthDisplay":"12 Hours 23 Mins 49 Secs","nightLengthDisplay":"11 Hours 36 Mins 11 Secs","moonriseLocal":"03:52","moonsetLocal":"17:00","rahuKala":{"name":"Rāhu Kāla","start":"07:33","end":"09:06","startHours":7.554120343563553,"endHours":9.10372316832089,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:39","end":"12:12","startHours":10.653325993078228,"endHours":12.202928817835566,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:45","end":"15:18","startHours":13.752531642592903,"endHours":15.30213446735024,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:19","startHours":8.897109458353246,"endHours":9.310336878288535,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:31","end":"06:51","startHours":6.521051793725328,"endHours":6.85163372967356,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:47","end":"12:37","startHours":11.789701397900277,"endHours":12.616156237770856,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:21","end":"05:11","startHours":4.351607839065055,"endHours":5.178062678935635,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:58","end":"06:00","startHours":4.971448968967991,"endHours":6.004517518806216,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:16","end":"15:06","startHours":14.269065917512016,"endHours":15.095520757382596,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:12","end":"18:36","startHours":18.201340116864916,"endHours":18.601340116864915,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:24","end":"18:55","startHours":18.401340116864915,"endHours":18.91787439178403,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:09","end":"19:54","startHours":18.151340116864915,"endHours":19.901340116864915,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:47","end":"00:37","startHours":23.789701397900277,"endHours":24.616156237770856,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:00","end":"07:33","startHours":6.004517518806216,"endHours":7.554120343563553,"quality":"auspicious"},{"name":"Kāla","start":"07:33","end":"09:06","startHours":7.554120343563553,"endHours":9.10372316832089,"quality":"inauspicious"},{"name":"Śubha","start":"09:06","end":"10:39","startHours":9.10372316832089,"endHours":10.653325993078228,"quality":"auspicious"},{"name":"Roga","start":"10:39","end":"12:12","startHours":10.653325993078228,"endHours":12.202928817835566,"quality":"inauspicious"},{"name":"Udveg","start":"12:12","end":"13:45","startHours":12.202928817835566,"endHours":13.752531642592903,"quality":"inauspicious"},{"name":"Chala","start":"13:45","end":"15:18","startHours":13.752531642592903,"endHours":15.30213446735024,"quality":"neutral"},{"name":"Labha","start":"15:18","end":"16:51","startHours":15.30213446735024,"endHours":16.85173729210758,"quality":"auspicious"},{"name":"Amṛta","start":"16:51","end":"18:24","startHours":16.85173729210758,"endHours":18.401340116864915,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:24","end":"19:51","startHours":18.401340116864915,"endHours":19.85173729210758,"quality":"neutral"},{"name":"Labha","start":"19:51","end":"21:18","startHours":19.85173729210758,"endHours":21.30213446735024,"quality":"auspicious"},{"name":"Amṛta","start":"21:18","end":"22:45","startHours":21.30213446735024,"endHours":22.752531642592903,"quality":"auspicious"},{"name":"Kāla","start":"22:45","end":"00:12","startHours":22.752531642592903,"endHours":24.202928817835566,"quality":"inauspicious"},{"name":"Śubha","start":"00:12","end":"01:39","startHours":24.202928817835566,"endHours":25.653325993078226,"quality":"auspicious"},{"name":"Roga","start":"01:39","end":"03:06","startHours":25.653325993078226,"endHours":27.10372316832089,"quality":"inauspicious"},{"name":"Udveg","start":"03:06","end":"04:33","startHours":27.10372316832089,"endHours":28.554120343563554,"quality":"inauspicious"},{"name":"Chala","start":"04:33","end":"06:00","startHours":28.554120343563554,"endHours":30.004517518806217,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:00","end":"07:00","startHours":6.004517518806216,"endHours":7.004517518806216,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:00","end":"08:00","startHours":7.004517518806216,"endHours":8.004517518806216,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:00","end":"09:00","startHours":8.004517518806216,"endHours":9.004517518806216,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:00","end":"10:00","startHours":9.004517518806216,"endHours":10.004517518806216,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:00","end":"11:00","startHours":10.004517518806216,"endHours":11.004517518806216,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:00","end":"12:00","startHours":11.004517518806216,"endHours":12.004517518806216,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:00","end":"13:00","startHours":12.004517518806216,"endHours":13.004517518806216,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:00","end":"14:00","startHours":13.004517518806216,"endHours":14.004517518806216,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:00","end":"15:00","startHours":14.004517518806216,"endHours":15.004517518806216,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:00","end":"16:00","startHours":15.004517518806216,"endHours":16.004517518806217,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:00","end":"17:00","startHours":16.004517518806217,"endHours":17.004517518806217,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:00","end":"18:00","startHours":17.004517518806217,"endHours":18.004517518806217,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:00","end":"19:00","startHours":18.004517518806217,"endHours":19.004517518806217,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:00","end":"20:00","startHours":19.004517518806217,"endHours":20.004517518806217,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:00","end":"21:00","startHours":20.004517518806217,"endHours":21.004517518806217,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:00","end":"22:00","startHours":21.004517518806217,"endHours":22.004517518806217,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:00","end":"23:00","startHours":22.004517518806217,"endHours":23.004517518806217,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:00","end":"00:00","startHours":23.004517518806217,"endHours":24.004517518806217,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:00","end":"01:00","startHours":24.004517518806217,"endHours":25.004517518806217,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:00","end":"02:00","startHours":25.004517518806217,"endHours":26.004517518806217,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:00","end":"03:00","startHours":26.004517518806217,"endHours":27.004517518806217,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:00","end":"04:00","startHours":27.004517518806217,"endHours":28.004517518806217,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:00","end":"05:00","startHours":28.004517518806217,"endHours":29.004517518806217,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:00","end":"06:00","startHours":29.004517518806217,"endHours":30.004517518806217,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Padma","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":3.4657030612447004,"eotMinutes":4.753870929866006,"ayanamsa":25.0921}},"calendars":{"vikram_samvat":2145,"vikram_samvatsara":"Durmati","saka_samvat":2010,"saka_samvatsara":"Kīlaka","bengali_samvat":1495,"malayalam_era":1264,"nanakshahi_year":619,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Śrāvaṇa","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 Kṛṣṇa Trayodaśī · Vikram 2145 Durmati · Śaka 2010 Kīlaka"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"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 13, 2088 CE · Ṛṣikeśa · Vidhyamitra","description":"September 13, 2088 CE for Ṛṣikeśa: Kṛṣṇa Trayodaśī, sūryodaya 06:00, sūryāsta 18:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2088-09-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2088-09-13","sa":"https://sa.vidhyamitra.com/city/rishikesh/2088-09-13","hi":"https://hi.vidhyamitra.com/city/rishikesh/2088-09-13","x-default":"https://vidhyamitra.com/city/rishikesh/2088-09-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T12:27:16.363Z","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":"2026-06-02T12:27:16.363Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T12:27:16.363Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}