{"id":"vidhyamitra:city-day:rishikesh:2177-09-25:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2177-09-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2177-09-25","date_display":"September 25, 2177 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":2177,"month":9,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2516460.770833,"kali_year":5279,"ahargana":1927995.2708,"sun":{"sidereal_longitude":154.9393,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":190.931,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":35.9917,"elapsed_within_tithi_degrees":11.9917},"nakshatra":{"number":15,"name":"Svātī","pada":2,"moon_longitude":190.931,"elapsed_within_degrees":4.2644},"yoga":{"number":26,"name":"Indra","sum_longitude":345.8703},"karana":{"half_tithi_index":5,"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":2177,"month":9,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2516460.770833,"ahargana":1927995.2708,"kali_year":5279,"ayanamsa_lahiri":26.3358,"grahas":{"sun":{"sidereal_longitude":156.11155099999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":190.94145100000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false,"latitude":-4.3381},"mars":{"sidereal_longitude":147.80175099999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":170.85585100000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":10.000050999999985,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":139.28975100000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":39.87535100000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":265.5324,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":85.5324,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","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":2177,"month":9,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2516460.770833,"kali_year":5279,"ahargana":1927995.2708,"sun":{"sidereal_longitude":154.9393,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":190.931,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":35.9917,"elapsed_within_tithi_degrees":11.9917},"nakshatra":{"number":15,"name":"Svātī","pada":2,"moon_longitude":190.931,"elapsed_within_degrees":4.2644},"yoga":{"number":26,"name":"Indra","sum_longitude":345.8703},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.338,"elongation":35.992},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.338,"opposition_distance":144.008}},"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":"06:06","sunsetLocal":"18:09","solarNoonLocal":"12:08","dayLengthHours":12.053193373329755,"dayLengthDisplay":"12 Hours 03 Mins 11 Secs","nightLengthDisplay":"11 Hours 56 Mins 49 Secs","moonriseLocal":"08:57","moonsetLocal":"19:57","rahuKala":{"name":"Rāhu Kāla","start":"13:38","end":"15:09","startHours":13.63636706186052,"endHours":15.14301623352674,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:06","end":"07:37","startHours":6.103121203529423,"endHours":7.609770375195643,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:07","end":"10:37","startHours":9.116419546861863,"endHours":10.623068718528081,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:19","startHours":8.915532990639699,"endHours":9.317306103084025,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:36","end":"06:56","startHours":6.60533759408483,"endHours":6.92675608404029,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:32","startHours":11.727944777749975,"endHours":12.531491002638624,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:30","end":"05:18","startHours":4.496028753752123,"endHours":5.299574978640773,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:06","end":"06:06","startHours":5.09868842241861,"endHours":6.103121203529423,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:57","startHours":14.138583452415926,"endHours":14.942129677304576,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.956314576859178,"endHours":18.356314576859177,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:40","startHours":18.156314576859177,"endHours":18.658530967414585,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.906314576859177,"endHours":19.656314576859177,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:32","startHours":23.727944777749975,"endHours":24.531491002638624,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:06","end":"07:37","startHours":6.103121203529423,"endHours":7.609770375195643,"quality":"auspicious"},{"name":"Roga","start":"07:37","end":"09:07","startHours":7.609770375195643,"endHours":9.116419546861863,"quality":"inauspicious"},{"name":"Udveg","start":"09:07","end":"10:37","startHours":9.116419546861863,"endHours":10.623068718528081,"quality":"inauspicious"},{"name":"Chala","start":"10:37","end":"12:08","startHours":10.623068718528081,"endHours":12.1297178901943,"quality":"neutral"},{"name":"Labha","start":"12:08","end":"13:38","startHours":12.1297178901943,"endHours":13.63636706186052,"quality":"auspicious"},{"name":"Amṛta","start":"13:38","end":"15:09","startHours":13.63636706186052,"endHours":15.14301623352674,"quality":"auspicious"},{"name":"Kāla","start":"15:09","end":"16:39","startHours":15.14301623352674,"endHours":16.64966540519296,"quality":"inauspicious"},{"name":"Śubha","start":"16:39","end":"18:09","startHours":16.64966540519296,"endHours":18.156314576859177,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:09","end":"19:39","startHours":18.156314576859177,"endHours":19.64966540519296,"quality":"auspicious"},{"name":"Kāla","start":"19:39","end":"21:09","startHours":19.64966540519296,"endHours":21.143016233526737,"quality":"inauspicious"},{"name":"Śubha","start":"21:09","end":"22:38","startHours":21.143016233526737,"endHours":22.63636706186052,"quality":"auspicious"},{"name":"Roga","start":"22:38","end":"00:08","startHours":22.63636706186052,"endHours":24.1297178901943,"quality":"inauspicious"},{"name":"Udveg","start":"00:08","end":"01:37","startHours":24.1297178901943,"endHours":25.62306871852808,"quality":"inauspicious"},{"name":"Chala","start":"01:37","end":"03:07","startHours":25.62306871852808,"endHours":27.116419546861863,"quality":"neutral"},{"name":"Labha","start":"03:07","end":"04:37","startHours":27.116419546861863,"endHours":28.60977037519564,"quality":"auspicious"},{"name":"Amṛta","start":"04:37","end":"06:06","startHours":28.60977037519564,"endHours":30.103121203529422,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:06","end":"07:06","startHours":6.103121203529423,"endHours":7.103121203529423,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:06","end":"08:06","startHours":7.103121203529423,"endHours":8.103121203529422,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:06","end":"09:06","startHours":8.103121203529422,"endHours":9.103121203529422,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:06","end":"10:06","startHours":9.103121203529422,"endHours":10.103121203529422,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:06","end":"11:06","startHours":10.103121203529422,"endHours":11.103121203529422,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:06","end":"12:06","startHours":11.103121203529422,"endHours":12.103121203529422,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:06","end":"13:06","startHours":12.103121203529422,"endHours":13.103121203529422,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:06","end":"14:06","startHours":13.103121203529422,"endHours":14.103121203529422,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:06","end":"15:06","startHours":14.103121203529422,"endHours":15.103121203529422,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:06","end":"16:06","startHours":15.103121203529422,"endHours":16.103121203529422,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:06","end":"17:06","startHours":16.103121203529422,"endHours":17.103121203529422,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:06","end":"18:06","startHours":17.103121203529422,"endHours":18.103121203529422,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:06","end":"19:06","startHours":18.103121203529422,"endHours":19.103121203529422,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:06","end":"20:06","startHours":19.103121203529422,"endHours":20.103121203529422,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:06","end":"21:06","startHours":20.103121203529422,"endHours":21.103121203529422,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:06","end":"22:06","startHours":21.103121203529422,"endHours":22.103121203529422,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:06","end":"23:06","startHours":22.103121203529422,"endHours":23.103121203529422,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:06","end":"00:06","startHours":23.103121203529422,"endHours":24.103121203529422,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:06","end":"01:06","startHours":24.103121203529422,"endHours":25.103121203529422,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:06","end":"02:06","startHours":25.103121203529422,"endHours":26.103121203529422,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:06","end":"03:06","startHours":26.103121203529422,"endHours":27.103121203529422,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:06","end":"04:06","startHours":27.103121203529422,"endHours":28.103121203529422,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:06","end":"05:06","startHours":28.103121203529422,"endHours":29.103121203529422,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:06","end":"06:06","startHours":29.103121203529422,"endHours":30.103121203529422,"planetary_lord":"Moon"}],"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","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North","rahuVasa":"North-West","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-0.9731417563368484,"eotMinutes":9.146526588342006,"ayanamsa":26.3358}},"calendars":{"vikram_samvat":2234,"vikram_samvatsara":"Vikṛti","saka_samvat":2099,"saka_samvatsara":"Īśvara","bengali_samvat":1584,"malayalam_era":1353,"nanakshahi_year":708,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Tṛtīyā · Vikram 2234 Vikṛti · Śaka 2099 Īśvara"},"festivals":[],"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 September 25, 2177 CE · Ṛṣikeśa · Vidhyamitra","description":"September 25, 2177 CE for Ṛṣikeśa: Śukla Tṛtīyā, sūryodaya 06:06, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2177-09-25","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2177-09-25","sa":"https://sa.vidhyamitra.com/city/rishikesh/2177-09-25","hi":"https://hi.vidhyamitra.com/city/rishikesh/2177-09-25","x-default":"https://vidhyamitra.com/city/rishikesh/2177-09-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T17:55:57.994Z","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":"2026-05-31T17:55:57.994Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T17:55:57.994Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}