{"id":"vidhyamitra:city-day:rishikesh:1877-02-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1877-02-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1877-02-13","date_display":"February 13, 1877 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":1877,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2406663.770833,"kali_year":4978,"ahargana":1818198.2708,"sun":{"sidereal_longitude":302.7396,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":299.2713,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":356.5316,"elapsed_within_tithi_degrees":8.5316},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":299.2713,"elapsed_within_degrees":5.9379},"yoga":{"number":19,"name":"Parigha","sum_longitude":242.0109},"karana":{"half_tithi_index":59,"name":"Nāga"},"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":1877,"month":2,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2406663.770833,"ahargana":1818198.2708,"kali_year":4978,"ayanamsa_lahiri":22.1365,"grahas":{"sun":{"sidereal_longitude":302.3549029999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":298.738703,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false,"latitude":-1.8169},"mars":{"sidereal_longitude":238.739603,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":279.074203,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":246.94000299999993,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"venus":{"sidereal_longitude":283.24020300000007,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":317.617703,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":323.1058,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":143.1058,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":1877,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2406663.770833,"kali_year":4978,"ahargana":1818198.2708,"sun":{"sidereal_longitude":302.7396,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":299.2713,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":356.5316,"elapsed_within_tithi_degrees":8.5316},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":299.2713,"elapsed_within_degrees":5.9379},"yoga":{"number":19,"name":"Parigha","sum_longitude":242.0109},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.817,"elongation":3.468},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.817,"opposition_distance":176.532}},"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":"06:59","sunsetLocal":"18:04","solarNoonLocal":"12:32","dayLengthHours":11.078782658060454,"dayLengthDisplay":"11 Hours 04 Mins 44 Secs","nightLengthDisplay":"12 Hours 55 Mins 16 Secs","moonriseLocal":"06:49","moonsetLocal":"17:45","rahuKala":{"name":"Rāhu Kāla","start":"15:18","end":"16:41","startHours":15.295181085525483,"endHours":16.68002891778304,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:45","end":"11:08","startHours":9.755789756495256,"endHours":11.140637588752814,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:32","end":"13:55","startHours":12.52548542101037,"endHours":13.910333253267925,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:34","end":"09:56","startHours":9.571143378860915,"endHours":9.940436134129596,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:27","end":"07:45","startHours":7.4477100360659945,"endHours":7.74314424028094,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:54","startHours":12.156192665741688,"endHours":12.89477817627905,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:31","end":"06:15","startHours":5.508923070905415,"endHours":6.247508581442778,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:04","end":"06:59","startHours":6.062862203808438,"endHours":6.986094091980142,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:07","startHours":14.371949197353779,"endHours":15.110534707891143,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:52","end":"18:16","startHours":17.864876750040597,"endHours":18.264876750040596,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:04","end":"18:32","startHours":18.064876750040597,"endHours":18.52649269412645,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:49","end":"19:34","startHours":17.814876750040597,"endHours":19.564876750040597,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:54","startHours":24.15619266574169,"endHours":24.89477817627905,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:59","end":"08:22","startHours":6.986094091980142,"endHours":8.370941924237698,"quality":"inauspicious"},{"name":"Udveg","start":"08:22","end":"09:45","startHours":8.370941924237698,"endHours":9.755789756495256,"quality":"inauspicious"},{"name":"Chala","start":"09:45","end":"11:08","startHours":9.755789756495256,"endHours":11.140637588752814,"quality":"neutral"},{"name":"Labha","start":"11:08","end":"12:32","startHours":11.140637588752814,"endHours":12.52548542101037,"quality":"auspicious"},{"name":"Amṛta","start":"12:32","end":"13:55","startHours":12.52548542101037,"endHours":13.910333253267925,"quality":"auspicious"},{"name":"Kāla","start":"13:55","end":"15:18","startHours":13.910333253267925,"endHours":15.295181085525483,"quality":"inauspicious"},{"name":"Śubha","start":"15:18","end":"16:41","startHours":15.295181085525483,"endHours":16.68002891778304,"quality":"auspicious"},{"name":"Roga","start":"16:41","end":"18:04","startHours":16.68002891778304,"endHours":18.064876750040597,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:04","end":"19:41","startHours":18.064876750040597,"endHours":19.68002891778304,"quality":"inauspicious"},{"name":"Śubha","start":"19:41","end":"21:18","startHours":19.68002891778304,"endHours":21.295181085525485,"quality":"auspicious"},{"name":"Roga","start":"21:18","end":"22:55","startHours":21.295181085525485,"endHours":22.910333253267925,"quality":"inauspicious"},{"name":"Udveg","start":"22:55","end":"00:32","startHours":22.910333253267925,"endHours":24.52548542101037,"quality":"inauspicious"},{"name":"Chala","start":"00:32","end":"02:08","startHours":24.52548542101037,"endHours":26.140637588752814,"quality":"neutral"},{"name":"Labha","start":"02:08","end":"03:45","startHours":26.140637588752814,"endHours":27.755789756495254,"quality":"auspicious"},{"name":"Amṛta","start":"03:45","end":"05:22","startHours":27.755789756495254,"endHours":29.370941924237698,"quality":"auspicious"},{"name":"Kāla","start":"05:22","end":"06:59","startHours":29.370941924237698,"endHours":30.986094091980142,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:59","end":"07:59","startHours":6.986094091980142,"endHours":7.986094091980142,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:59","end":"08:59","startHours":7.986094091980142,"endHours":8.986094091980142,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:59","end":"09:59","startHours":8.986094091980142,"endHours":9.986094091980142,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:59","end":"10:59","startHours":9.986094091980142,"endHours":10.986094091980142,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:59","end":"11:59","startHours":10.986094091980142,"endHours":11.986094091980142,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:59","end":"12:59","startHours":11.986094091980142,"endHours":12.986094091980142,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:59","end":"13:59","startHours":12.986094091980142,"endHours":13.986094091980142,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:59","end":"14:59","startHours":13.986094091980142,"endHours":14.986094091980142,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:59","end":"15:59","startHours":14.986094091980142,"endHours":15.986094091980142,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:59","end":"16:59","startHours":15.986094091980142,"endHours":16.986094091980142,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:59","end":"17:59","startHours":16.986094091980142,"endHours":17.986094091980142,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:59","end":"18:59","startHours":17.986094091980142,"endHours":18.986094091980142,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:59","end":"19:59","startHours":18.986094091980142,"endHours":19.986094091980142,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:59","end":"20:59","startHours":19.986094091980142,"endHours":20.986094091980142,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:59","end":"21:59","startHours":20.986094091980142,"endHours":21.986094091980142,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:59","end":"22:59","startHours":21.986094091980142,"endHours":22.986094091980142,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:59","end":"23:59","startHours":22.986094091980142,"endHours":23.986094091980142,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:59","end":"00:59","startHours":23.986094091980142,"endHours":24.986094091980142,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:59","end":"01:59","startHours":24.986094091980142,"endHours":25.986094091980142,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:59","end":"02:59","startHours":25.986094091980142,"endHours":26.986094091980142,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:59","end":"03:59","startHours":26.986094091980142,"endHours":27.986094091980142,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:59","end":"04:59","startHours":27.986094091980142,"endHours":28.986094091980142,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:59","end":"05:59","startHours":28.986094091980142,"endHours":29.986094091980142,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:59","end":"06:59","startHours":29.986094091980142,"endHours":30.986094091980142,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-13.356718505672923,"eotMinutes":-14.599525260622107,"ayanamsa":22.1365}},"calendars":{"vikram_samvat":1934,"vikram_samvatsara":"Vikṛti","saka_samvat":1799,"saka_samvatsara":"Īśvara","bengali_samvat":1284,"malayalam_era":1053,"nanakshahi_year":408,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Amāvasyā · Vikram 1934 Vikṛti · Śaka 1799 Īśvara"},"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","relevance":0.5}]},"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 13, 1877 CE · Ṛṣikeśa · Vidhyamitra","description":"February 13, 1877 CE for Ṛṣikeśa: Kṛṣṇa Amāvasyā, sūryodaya 06:59, sūryāsta 18:04.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1877-02-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1877-02-13","sa":"https://sa.vidhyamitra.com/city/rishikesh/1877-02-13","hi":"https://hi.vidhyamitra.com/city/rishikesh/1877-02-13","x-default":"https://vidhyamitra.com/city/rishikesh/1877-02-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T23:17:33.577Z","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":"2026-05-30T23:17:33.577Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T23:17:33.577Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}