{"id":"vidhyamitra:city-day:rishikesh:1908-02-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1908-02-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1908-02-15","date_display":"February 15, 1908 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":1908,"month":2,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2417986.770833,"kali_year":5009,"ahargana":1829521.2708,"sun":{"sidereal_longitude":302.7179,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":96.2794,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":153.5615,"elapsed_within_tithi_degrees":9.5615},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":96.2794,"elapsed_within_degrees":2.9461},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":38.9973},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1908,"month":2,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2417986.770833,"ahargana":1829521.2708,"kali_year":5009,"ayanamsa_lahiri":22.5695,"grahas":{"sun":{"sidereal_longitude":302.40528100000006,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":97.01658099999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false,"latitude":1.0205},"mars":{"sidereal_longitude":3.1035810000000197,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":321.69108099999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":105.03598099999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":true},"venus":{"sidereal_longitude":339.825681,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":334.58278100000007,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":83.1588,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":263.1588,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":1908,"month":2,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2417986.770833,"kali_year":5009,"ahargana":1829521.2708,"sun":{"sidereal_longitude":302.7179,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":96.2794,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":153.5615,"elapsed_within_tithi_degrees":9.5615},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":96.2794,"elapsed_within_degrees":2.9461},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":38.9973},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.021,"elongation":153.562},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.021,"opposition_distance":26.438}},"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":11.091941803621005,"dayLengthDisplay":"11 Hours 05 Mins 31 Secs","nightLengthDisplay":"12 Hours 54 Mins 29 Secs","moonriseLocal":"15:58","moonsetLocal":"05:42","rahuKala":{"name":"Rāhu Kāla","start":"09:45","end":"11:08","startHours":9.752025566551414,"endHours":11.13851829200404,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:55","end":"15:18","startHours":13.911503742909291,"endHours":15.297996468361916,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:59","end":"08:22","startHours":6.979040115646163,"endHours":8.365532841098789,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:34","end":"09:56","startHours":9.567159869824398,"endHours":9.936891263278431,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:26","end":"07:44","startHours":7.441204357463705,"endHours":7.736989472226932,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:54","startHours":12.155279624002633,"endHours":12.8947424109107,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:30","end":"06:14","startHours":5.50011454183003,"endHours":6.239577328738096,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:03","end":"06:59","startHours":6.054711632011079,"endHours":6.979040115646163,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:07","startHours":14.373667984726833,"endHours":15.1131307716349,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:52","end":"18:16","startHours":17.87098191926717,"endHours":18.270981919267168,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:04","end":"18:32","startHours":18.07098191926717,"endHours":18.533146161084712,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:49","end":"19:34","startHours":17.82098191926717,"endHours":19.57098191926717,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:54","startHours":24.155279624002635,"endHours":24.8947424109107,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:59","end":"08:22","startHours":6.979040115646163,"endHours":8.365532841098789,"quality":"inauspicious"},{"name":"Śubha","start":"08:22","end":"09:45","startHours":8.365532841098789,"endHours":9.752025566551414,"quality":"auspicious"},{"name":"Roga","start":"09:45","end":"11:08","startHours":9.752025566551414,"endHours":11.13851829200404,"quality":"inauspicious"},{"name":"Udveg","start":"11:08","end":"12:32","startHours":11.13851829200404,"endHours":12.525011017456666,"quality":"inauspicious"},{"name":"Chala","start":"12:32","end":"13:55","startHours":12.525011017456666,"endHours":13.911503742909291,"quality":"neutral"},{"name":"Labha","start":"13:55","end":"15:18","startHours":13.911503742909291,"endHours":15.297996468361916,"quality":"auspicious"},{"name":"Amṛta","start":"15:18","end":"16:41","startHours":15.297996468361916,"endHours":16.684489193814542,"quality":"auspicious"},{"name":"Kāla","start":"16:41","end":"18:04","startHours":16.684489193814542,"endHours":18.07098191926717,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:04","end":"19:41","startHours":18.07098191926717,"endHours":19.684489193814542,"quality":"auspicious"},{"name":"Amṛta","start":"19:41","end":"21:18","startHours":19.684489193814542,"endHours":21.297996468361916,"quality":"auspicious"},{"name":"Kāla","start":"21:18","end":"22:55","startHours":21.297996468361916,"endHours":22.911503742909293,"quality":"inauspicious"},{"name":"Śubha","start":"22:55","end":"00:32","startHours":22.911503742909293,"endHours":24.525011017456666,"quality":"auspicious"},{"name":"Roga","start":"00:32","end":"02:08","startHours":24.525011017456666,"endHours":26.13851829200404,"quality":"inauspicious"},{"name":"Udveg","start":"02:08","end":"03:45","startHours":26.13851829200404,"endHours":27.752025566551417,"quality":"inauspicious"},{"name":"Chala","start":"03:45","end":"05:22","startHours":27.752025566551417,"endHours":29.36553284109879,"quality":"neutral"},{"name":"Labha","start":"05:22","end":"06:59","startHours":29.36553284109879,"endHours":30.979040115646164,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:59","end":"07:59","startHours":6.979040115646163,"endHours":7.979040115646163,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:59","end":"08:59","startHours":7.979040115646163,"endHours":8.979040115646164,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:59","end":"09:59","startHours":8.979040115646164,"endHours":9.979040115646164,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:59","end":"10:59","startHours":9.979040115646164,"endHours":10.979040115646164,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:59","end":"11:59","startHours":10.979040115646164,"endHours":11.979040115646164,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:59","end":"12:59","startHours":11.979040115646164,"endHours":12.979040115646164,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:59","end":"13:59","startHours":12.979040115646164,"endHours":13.979040115646164,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:59","end":"14:59","startHours":13.979040115646164,"endHours":14.979040115646164,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:59","end":"15:59","startHours":14.979040115646164,"endHours":15.979040115646164,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:59","end":"16:59","startHours":15.979040115646164,"endHours":16.979040115646164,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:59","end":"17:59","startHours":16.979040115646164,"endHours":17.979040115646164,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:59","end":"18:59","startHours":17.979040115646164,"endHours":18.979040115646164,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:59","end":"19:59","startHours":18.979040115646164,"endHours":19.979040115646164,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:59","end":"20:59","startHours":19.979040115646164,"endHours":20.979040115646164,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:59","end":"21:59","startHours":20.979040115646164,"endHours":21.979040115646164,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:59","end":"22:59","startHours":21.979040115646164,"endHours":22.979040115646164,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:59","end":"23:59","startHours":22.979040115646164,"endHours":23.979040115646164,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:59","end":"00:59","startHours":23.979040115646164,"endHours":24.979040115646164,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:59","end":"01:59","startHours":24.979040115646164,"endHours":25.979040115646164,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:59","end":"02:59","startHours":25.979040115646164,"endHours":26.979040115646164,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:59","end":"03:59","startHours":26.979040115646164,"endHours":27.979040115646164,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:59","end":"04:59","startHours":27.979040115646164,"endHours":28.979040115646164,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:59","end":"05:59","startHours":28.979040115646164,"endHours":29.979040115646164,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:59","end":"06:59","startHours":29.979040115646164,"endHours":30.979040115646164,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"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":"East","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"drikRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-13.195437898238726,"eotMinutes":-14.571061047399978,"ayanamsa":22.5695}},"calendars":{"vikram_samvat":1965,"vikram_samvatsara":"Durmati","saka_samvat":1830,"saka_samvatsara":"Kīlaka","bengali_samvat":1315,"malayalam_era":1084,"nanakshahi_year":439,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Trayodaśī · Vikram 1965 Durmati · Śaka 1830 Kīlaka"},"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":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 15, 1908 CE · Ṛṣikeśa · Vidhyamitra","description":"February 15, 1908 CE for Ṛṣikeśa: Śukla Trayodaśī, sūryodaya 06:59, sūryāsta 18:04.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1908-02-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1908-02-15","sa":"https://sa.vidhyamitra.com/city/rishikesh/1908-02-15","hi":"https://hi.vidhyamitra.com/city/rishikesh/1908-02-15","x-default":"https://vidhyamitra.com/city/rishikesh/1908-02-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-26T09:52:43.252Z","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":"2026-05-26T09:52:43.252Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-26T09:52:43.252Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}