{"id":"vidhyamitra:city-day:rishikesh:1910-02-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1910-02-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1910-02-12","date_display":"February 12, 1910 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":1910,"month":2,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2418714.770833,"kali_year":5011,"ahargana":1830249.2708,"sun":{"sidereal_longitude":300.1611,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":324.7602,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":24.5992,"elapsed_within_tithi_degrees":0.5992},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2,"moon_longitude":324.7602,"elapsed_within_degrees":4.7602},"yoga":{"number":20,"name":"Śiva","sum_longitude":264.9213},"karana":{"half_tithi_index":4,"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":1910,"month":2,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2418714.770833,"ahargana":1830249.2708,"kali_year":5011,"ayanamsa_lahiri":22.5974,"grahas":{"sun":{"sidereal_longitude":299.86546599999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":326.647466,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false,"latitude":-4.4291},"mars":{"sidereal_longitude":20.313266,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":276.38146600000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":172.90306600000008,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":true},"venus":{"sidereal_longitude":301.802866,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":357.399066,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":44.5859,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":224.5859,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"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":1910,"month":2,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2418714.770833,"kali_year":5011,"ahargana":1830249.2708,"sun":{"sidereal_longitude":300.1611,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":324.7602,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":24.5992,"elapsed_within_tithi_degrees":0.5992},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2,"moon_longitude":324.7602,"elapsed_within_degrees":4.7602},"yoga":{"number":20,"name":"Śiva","sum_longitude":264.9213},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.429,"elongation":24.599},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.429,"opposition_distance":155.401}},"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":"07:01","sunsetLocal":"18:02","solarNoonLocal":"12:32","dayLengthHours":11.024128100840553,"dayLengthDisplay":"11 Hours 01 Mins 27 Secs","nightLengthDisplay":"12 Hours 58 Mins 33 Secs","moonriseLocal":"08:26","moonsetLocal":"20:11","rahuKala":{"name":"Rāhu Kāla","start":"09:46","end":"11:09","startHours":9.769373509704703,"endHours":11.147389522309773,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:54","end":"15:17","startHours":13.903421547519912,"endHours":15.281437560124978,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:01","end":"08:23","startHours":7.013341484494565,"endHours":8.391357497099634,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:35","end":"09:57","startHours":9.58563804135736,"endHours":9.953108978052047,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:28","end":"07:46","startHours":7.472680155362921,"endHours":7.766656904718669,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:54","startHours":12.157934598220155,"endHours":12.892876471609526,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:33","end":"06:17","startHours":5.5434577377158245,"endHours":6.278399611105195,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:06","end":"07:01","startHours":6.0946641427578525,"endHours":7.013341484494565,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:06","startHours":14.362760218388267,"endHours":15.097702091777638,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:50","end":"18:14","startHours":17.837469585335118,"endHours":18.237469585335116,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:02","end":"18:30","startHours":18.037469585335117,"endHours":18.496808256203472,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:47","end":"19:32","startHours":17.787469585335117,"endHours":19.537469585335117,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:54","startHours":24.157934598220155,"endHours":24.892876471609522,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:01","end":"08:23","startHours":7.013341484494565,"endHours":8.391357497099634,"quality":"inauspicious"},{"name":"Śubha","start":"08:23","end":"09:46","startHours":8.391357497099634,"endHours":9.769373509704703,"quality":"auspicious"},{"name":"Roga","start":"09:46","end":"11:09","startHours":9.769373509704703,"endHours":11.147389522309773,"quality":"inauspicious"},{"name":"Udveg","start":"11:09","end":"12:32","startHours":11.147389522309773,"endHours":12.525405534914842,"quality":"inauspicious"},{"name":"Chala","start":"12:32","end":"13:54","startHours":12.525405534914842,"endHours":13.903421547519912,"quality":"neutral"},{"name":"Labha","start":"13:54","end":"15:17","startHours":13.903421547519912,"endHours":15.281437560124978,"quality":"auspicious"},{"name":"Amṛta","start":"15:17","end":"16:40","startHours":15.281437560124978,"endHours":16.659453572730047,"quality":"auspicious"},{"name":"Kāla","start":"16:40","end":"18:02","startHours":16.659453572730047,"endHours":18.037469585335117,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:02","end":"19:40","startHours":18.037469585335117,"endHours":19.659453572730047,"quality":"auspicious"},{"name":"Amṛta","start":"19:40","end":"21:17","startHours":19.659453572730047,"endHours":21.281437560124978,"quality":"auspicious"},{"name":"Kāla","start":"21:17","end":"22:54","startHours":21.281437560124978,"endHours":22.903421547519912,"quality":"inauspicious"},{"name":"Śubha","start":"22:54","end":"00:32","startHours":22.903421547519912,"endHours":24.52540553491484,"quality":"auspicious"},{"name":"Roga","start":"00:32","end":"02:09","startHours":24.52540553491484,"endHours":26.147389522309773,"quality":"inauspicious"},{"name":"Udveg","start":"02:09","end":"03:46","startHours":26.147389522309773,"endHours":27.769373509704703,"quality":"inauspicious"},{"name":"Chala","start":"03:46","end":"05:23","startHours":27.769373509704703,"endHours":29.391357497099634,"quality":"neutral"},{"name":"Labha","start":"05:23","end":"07:01","startHours":29.391357497099634,"endHours":31.013341484494564,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:01","end":"08:01","startHours":7.013341484494565,"endHours":8.013341484494564,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:01","end":"09:01","startHours":8.013341484494564,"endHours":9.013341484494564,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:01","end":"10:01","startHours":9.013341484494564,"endHours":10.013341484494564,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:01","end":"11:01","startHours":10.013341484494564,"endHours":11.013341484494564,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:01","end":"12:01","startHours":11.013341484494564,"endHours":12.013341484494564,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:01","end":"13:01","startHours":12.013341484494564,"endHours":13.013341484494564,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:01","end":"14:01","startHours":13.013341484494564,"endHours":14.013341484494564,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:01","end":"15:01","startHours":14.013341484494564,"endHours":15.013341484494564,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:01","end":"16:01","startHours":15.013341484494564,"endHours":16.013341484494564,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:01","end":"17:01","startHours":16.013341484494564,"endHours":17.013341484494564,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:01","end":"18:01","startHours":17.013341484494564,"endHours":18.013341484494564,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:01","end":"19:01","startHours":18.013341484494564,"endHours":19.013341484494564,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:01","end":"20:01","startHours":19.013341484494564,"endHours":20.013341484494564,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:01","end":"21:01","startHours":20.013341484494564,"endHours":21.013341484494564,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:01","end":"22:01","startHours":21.013341484494564,"endHours":22.013341484494564,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:01","end":"23:01","startHours":22.013341484494564,"endHours":23.013341484494564,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:01","end":"00:01","startHours":23.013341484494564,"endHours":24.013341484494564,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:01","end":"01:01","startHours":24.013341484494564,"endHours":25.013341484494564,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:01","end":"02:01","startHours":25.013341484494564,"endHours":26.013341484494564,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:01","end":"03:01","startHours":26.013341484494564,"endHours":27.013341484494564,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:01","end":"04:01","startHours":27.013341484494564,"endHours":28.013341484494564,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:01","end":"05:01","startHours":28.013341484494564,"endHours":29.013341484494564,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:01","end":"06:01","startHours":29.013341484494564,"endHours":30.013341484494564,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:01","end":"07:01","startHours":30.013341484494564,"endHours":31.013341484494564,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-14.024019253267753,"eotMinutes":-14.594732094890398,"ayanamsa":22.5974}},"calendars":{"vikram_samvat":1967,"vikram_samvatsara":"Rudhirodgāri","saka_samvat":1832,"saka_samvatsara":"Sādhāraṇa","bengali_samvat":1317,"malayalam_era":1086,"nanakshahi_year":441,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Tṛtīyā · Vikram 1967 Rudhirodgāri · Śaka 1832 Sādhāraṇa"},"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_ingress":"Kumbha"},"precedence":5}],"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 12, 1910 CE · Ṛṣikeśa · Vidhyamitra","description":"February 12, 1910 CE for Ṛṣikeśa: Śukla Tṛtīyā, sūryodaya 07:01, sūryāsta 18:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1910-02-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1910-02-12","sa":"https://sa.vidhyamitra.com/city/rishikesh/1910-02-12","hi":"https://hi.vidhyamitra.com/city/rishikesh/1910-02-12","x-default":"https://vidhyamitra.com/city/rishikesh/1910-02-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T03:17:07.688Z","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":"2026-06-01T03:17:07.688Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T03:17:07.688Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}