{"id":"vidhyamitra:city-day:rishikesh:2131-02-25:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2131-02-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2131-02-25","date_display":"February 25, 2131 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":2131,"month":2,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499446.770833,"kali_year":5232,"ahargana":1910981.2708,"sun":{"sidereal_longitude":310.1089,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":276.011,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":325.9021,"elapsed_within_tithi_degrees":1.9021},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3,"moon_longitude":276.011,"elapsed_within_degrees":9.3443},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":226.1199},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2131,"month":2,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2499446.770833,"ahargana":1910981.2708,"kali_year":5232,"ayanamsa_lahiri":25.6851,"grahas":{"sun":{"sidereal_longitude":310.28141099999993,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":275.865311,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false,"latitude":-0.7029},"mars":{"sidereal_longitude":253.51601099999993,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":326.53861099999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":21.67521099999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":273.28781100000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":198.82561099999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":87.016,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":267.016,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"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":2131,"month":2,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499446.770833,"kali_year":5232,"ahargana":1910981.2708,"sun":{"sidereal_longitude":310.1089,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":276.011,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":325.9021,"elapsed_within_tithi_degrees":1.9021},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3,"moon_longitude":276.011,"elapsed_within_degrees":9.3443},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":226.1199},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.703,"elongation":34.098},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.703,"opposition_distance":145.902}},"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":"06:49","sunsetLocal":"18:13","solarNoonLocal":"12:31","dayLengthHours":11.40291198577917,"dayLengthDisplay":"11 Hours 24 Mins 10 Secs","nightLengthDisplay":"12 Hours 35 Mins 50 Secs","moonriseLocal":"04:58","moonsetLocal":"15:28","rahuKala":{"name":"Rāhu Kāla","start":"16:47","end":"18:13","startHours":16.78662007358271,"endHours":18.21198407180511,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:31","end":"13:56","startHours":12.510528078915524,"endHours":13.935892077137918,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:22","end":"16:47","startHours":15.361256075360316,"endHours":16.78662007358271,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:28","end":"09:51","startHours":9.469751549374411,"endHours":9.84984861556705,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:17","end":"07:35","startHours":7.284193418766737,"endHours":7.588271071720849,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:08","end":"12:53","startHours":12.130431012722886,"endHours":12.890625145108162,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:17","end":"06:03","startHours":5.288683821255382,"endHours":6.04887795364066,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:52","end":"06:49","startHours":5.858829420544341,"endHours":6.809072086025938,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:25","end":"15:10","startHours":14.411013409878718,"endHours":15.171207542263996,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:01","end":"18:25","startHours":18.01198407180511,"endHours":18.411984071805108,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:13","end":"18:41","startHours":18.21198407180511,"endHours":18.687105404545907,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:58","end":"19:43","startHours":17.96198407180511,"endHours":19.71198407180511,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:08","end":"00:53","startHours":24.130431012722884,"endHours":24.890625145108164,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:49","end":"08:14","startHours":6.809072086025938,"endHours":8.234436084248333,"quality":"inauspicious"},{"name":"Chala","start":"08:14","end":"09:40","startHours":8.234436084248333,"endHours":9.659800082470731,"quality":"neutral"},{"name":"Labha","start":"09:40","end":"11:05","startHours":9.659800082470731,"endHours":11.085164080693126,"quality":"auspicious"},{"name":"Amṛta","start":"11:05","end":"12:31","startHours":11.085164080693126,"endHours":12.510528078915524,"quality":"auspicious"},{"name":"Kāla","start":"12:31","end":"13:56","startHours":12.510528078915524,"endHours":13.935892077137918,"quality":"inauspicious"},{"name":"Śubha","start":"13:56","end":"15:22","startHours":13.935892077137918,"endHours":15.361256075360316,"quality":"auspicious"},{"name":"Roga","start":"15:22","end":"16:47","startHours":15.361256075360316,"endHours":16.78662007358271,"quality":"inauspicious"},{"name":"Udveg","start":"16:47","end":"18:13","startHours":16.78662007358271,"endHours":18.21198407180511,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:13","end":"19:47","startHours":18.21198407180511,"endHours":19.78662007358271,"quality":"auspicious"},{"name":"Roga","start":"19:47","end":"21:22","startHours":19.78662007358271,"endHours":21.361256075360316,"quality":"inauspicious"},{"name":"Udveg","start":"21:22","end":"22:56","startHours":21.361256075360316,"endHours":22.93589207713792,"quality":"inauspicious"},{"name":"Chala","start":"22:56","end":"00:31","startHours":22.93589207713792,"endHours":24.510528078915524,"quality":"neutral"},{"name":"Labha","start":"00:31","end":"02:05","startHours":24.510528078915524,"endHours":26.085164080693126,"quality":"auspicious"},{"name":"Amṛta","start":"02:05","end":"03:40","startHours":26.085164080693126,"endHours":27.65980008247073,"quality":"auspicious"},{"name":"Kāla","start":"03:40","end":"05:14","startHours":27.65980008247073,"endHours":29.234436084248337,"quality":"inauspicious"},{"name":"Śubha","start":"05:14","end":"06:49","startHours":29.234436084248337,"endHours":30.80907208602594,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:49","end":"07:49","startHours":6.809072086025938,"endHours":7.809072086025938,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:49","end":"08:49","startHours":7.809072086025938,"endHours":8.809072086025939,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:49","end":"09:49","startHours":8.809072086025939,"endHours":9.809072086025939,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:49","end":"10:49","startHours":9.809072086025939,"endHours":10.809072086025939,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:49","end":"11:49","startHours":10.809072086025939,"endHours":11.809072086025939,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:49","end":"12:49","startHours":11.809072086025939,"endHours":12.809072086025939,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:49","end":"13:49","startHours":12.809072086025939,"endHours":13.809072086025939,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:49","end":"14:49","startHours":13.809072086025939,"endHours":14.809072086025939,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:49","end":"15:49","startHours":14.809072086025939,"endHours":15.809072086025939,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:49","end":"16:49","startHours":15.809072086025939,"endHours":16.80907208602594,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:49","end":"17:49","startHours":16.80907208602594,"endHours":17.80907208602594,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:49","end":"18:49","startHours":17.80907208602594,"endHours":18.80907208602594,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:49","end":"19:49","startHours":18.80907208602594,"endHours":19.80907208602594,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:49","end":"20:49","startHours":19.80907208602594,"endHours":20.80907208602594,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:49","end":"21:49","startHours":20.80907208602594,"endHours":21.80907208602594,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:49","end":"22:49","startHours":21.80907208602594,"endHours":22.80907208602594,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:49","end":"23:49","startHours":22.80907208602594,"endHours":23.80907208602594,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:49","end":"00:49","startHours":23.80907208602594,"endHours":24.80907208602594,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:49","end":"01:49","startHours":24.80907208602594,"endHours":25.80907208602594,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:49","end":"02:49","startHours":25.80907208602594,"endHours":26.80907208602594,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:49","end":"03:49","startHours":26.80907208602594,"endHours":27.80907208602594,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:49","end":"04:49","startHours":27.80907208602594,"endHours":28.80907208602594,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:49","end":"05:49","startHours":28.80907208602594,"endHours":29.80907208602594,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:49","end":"06:49","startHours":29.80907208602594,"endHours":30.80907208602594,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-9.32211482367765,"eotMinutes":-13.702084734931393,"ayanamsa":25.6851}},"calendars":{"vikram_samvat":2188,"vikram_samvatsara":"Krodhi","saka_samvat":2053,"saka_samvatsara":"Khara","bengali_samvat":1538,"malayalam_era":1307,"nanakshahi_year":662,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Trayodaśī · Vikram 2188 Krodhi · Śaka 2053 Khara"},"festivals":[{"id":"kumbha-sankranti","name":"Kumbha Saṅkrānti","name_sanskrit":"कुम्भ सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aquarius; Kumbha-māsa begins.","vrata":false,"detection":{"sun_rashi":"Kumbha"},"precedence":5},{"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":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 February 25, 2131 CE · Ṛṣikeśa · Vidhyamitra","description":"February 25, 2131 CE for Ṛṣikeśa: Kṛṣṇa Trayodaśī, sūryodaya 06:49, sūryāsta 18:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2131-02-25","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2131-02-25","sa":"https://sa.vidhyamitra.com/city/rishikesh/2131-02-25","hi":"https://hi.vidhyamitra.com/city/rishikesh/2131-02-25","x-default":"https://vidhyamitra.com/city/rishikesh/2131-02-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-23T08:53:07.953Z","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":"2026-05-23T08:53:07.953Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-23T08:53:07.953Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}