{"id":"vidhyamitra:city-day:rishikesh:1923-04-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1923-04-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1923-04-15","date_display":"April 15, 1923 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":1923,"month":4,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2423524.770833,"kali_year":5024,"ahargana":1835059.2708,"sun":{"sidereal_longitude":1.5823,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":348.332,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":346.7497,"elapsed_within_tithi_degrees":10.7497},"nakshatra":{"number":27,"name":"Revatī","pada":1,"moon_longitude":348.332,"elapsed_within_degrees":1.6653},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":349.9143},"karana":{"half_tithi_index":57,"name":"Śakuni"},"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":1923,"month":4,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2423524.770833,"ahargana":1835059.2708,"kali_year":5024,"ayanamsa_lahiri":22.7813,"grahas":{"sun":{"sidereal_longitude":1.2748890000000301,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":347.949389,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false,"latitude":-1.4342},"mars":{"sidereal_longitude":37.60838899999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":9.242089000000021,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":205.07308899999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":324.6079890000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":173.78108899999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":149.7289,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":329.7289,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":1923,"month":4,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2423524.770833,"kali_year":5024,"ahargana":1835059.2708,"sun":{"sidereal_longitude":1.5823,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":348.332,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":346.7497,"elapsed_within_tithi_degrees":10.7497},"nakshatra":{"number":27,"name":"Revatī","pada":1,"moon_longitude":348.332,"elapsed_within_degrees":1.6653},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":349.9143},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.434,"elongation":13.25},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.434,"opposition_distance":166.75}},"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":"05:51","sunsetLocal":"18:43","solarNoonLocal":"12:17","dayLengthHours":12.859105163267195,"dayLengthDisplay":"12 Hours 51 Mins 33 Secs","nightLengthDisplay":"11 Hours 08 Mins 27 Secs","moonriseLocal":"05:11","moonsetLocal":"17:36","rahuKala":{"name":"Rāhu Kāla","start":"17:06","end":"18:43","startHours":17.108326503855317,"endHours":18.715714649263717,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:17","end":"13:54","startHours":12.28616206763012,"endHours":13.89355021303852,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:30","end":"17:06","startHours":15.50093835844692,"endHours":17.108326503855317,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:51","end":"09:17","startHours":8.857067357425535,"endHours":9.285704196201108,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:24","end":"06:44","startHours":6.392405534465989,"endHours":6.735315005486448,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:43","startHours":11.857525228854547,"endHours":12.714798906405692,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:09","end":"05:00","startHours":4.14206213089423,"endHours":4.999335808445377,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:47","end":"05:51","startHours":4.7850173890575896,"endHours":5.856609485996523,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:17","startHours":14.429346261507987,"endHours":15.286619939059134,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:31","end":"18:55","startHours":18.515714649263717,"endHours":18.915714649263716,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:43","end":"19:15","startHours":18.715714649263717,"endHours":19.251510697733185,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:28","end":"20:13","startHours":18.465714649263717,"endHours":20.215714649263717,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:43","startHours":23.857525228854545,"endHours":24.714798906405694,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:51","end":"07:28","startHours":5.856609485996523,"endHours":7.463997631404922,"quality":"inauspicious"},{"name":"Chala","start":"07:28","end":"09:04","startHours":7.463997631404922,"endHours":9.071385776813322,"quality":"neutral"},{"name":"Labha","start":"09:04","end":"10:41","startHours":9.071385776813322,"endHours":10.67877392222172,"quality":"auspicious"},{"name":"Amṛta","start":"10:41","end":"12:17","startHours":10.67877392222172,"endHours":12.28616206763012,"quality":"auspicious"},{"name":"Kāla","start":"12:17","end":"13:54","startHours":12.28616206763012,"endHours":13.89355021303852,"quality":"inauspicious"},{"name":"Śubha","start":"13:54","end":"15:30","startHours":13.89355021303852,"endHours":15.50093835844692,"quality":"auspicious"},{"name":"Roga","start":"15:30","end":"17:06","startHours":15.50093835844692,"endHours":17.108326503855317,"quality":"inauspicious"},{"name":"Udveg","start":"17:06","end":"18:43","startHours":17.108326503855317,"endHours":18.715714649263717,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:43","end":"20:06","startHours":18.715714649263717,"endHours":20.108326503855317,"quality":"auspicious"},{"name":"Roga","start":"20:06","end":"21:30","startHours":20.108326503855317,"endHours":21.500938358446916,"quality":"inauspicious"},{"name":"Udveg","start":"21:30","end":"22:54","startHours":21.500938358446916,"endHours":22.89355021303852,"quality":"inauspicious"},{"name":"Chala","start":"22:54","end":"00:17","startHours":22.89355021303852,"endHours":24.28616206763012,"quality":"neutral"},{"name":"Labha","start":"00:17","end":"01:41","startHours":24.28616206763012,"endHours":25.67877392222172,"quality":"auspicious"},{"name":"Amṛta","start":"01:41","end":"03:04","startHours":25.67877392222172,"endHours":27.071385776813322,"quality":"auspicious"},{"name":"Kāla","start":"03:04","end":"04:28","startHours":27.071385776813322,"endHours":28.463997631404922,"quality":"inauspicious"},{"name":"Śubha","start":"04:28","end":"05:51","startHours":28.463997631404922,"endHours":29.856609485996522,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:51","end":"06:51","startHours":5.856609485996523,"endHours":6.856609485996523,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:51","end":"07:51","startHours":6.856609485996523,"endHours":7.856609485996523,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:51","end":"08:51","startHours":7.856609485996523,"endHours":8.856609485996522,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:51","end":"09:51","startHours":8.856609485996522,"endHours":9.856609485996522,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:51","end":"10:51","startHours":9.856609485996522,"endHours":10.856609485996522,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:51","end":"11:51","startHours":10.856609485996522,"endHours":11.856609485996522,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:51","end":"12:51","startHours":11.856609485996522,"endHours":12.856609485996522,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:51","end":"13:51","startHours":12.856609485996522,"endHours":13.856609485996522,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:51","end":"14:51","startHours":13.856609485996522,"endHours":14.856609485996522,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:51","end":"15:51","startHours":14.856609485996522,"endHours":15.856609485996522,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:51","end":"16:51","startHours":15.856609485996522,"endHours":16.856609485996522,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:51","end":"17:51","startHours":16.856609485996522,"endHours":17.856609485996522,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:51","end":"18:51","startHours":17.856609485996522,"endHours":18.856609485996522,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:51","end":"19:51","startHours":18.856609485996522,"endHours":19.856609485996522,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:51","end":"20:51","startHours":19.856609485996522,"endHours":20.856609485996522,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:51","end":"21:51","startHours":20.856609485996522,"endHours":21.856609485996522,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:51","end":"22:51","startHours":21.856609485996522,"endHours":22.856609485996522,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:51","end":"23:51","startHours":22.856609485996522,"endHours":23.856609485996522,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:51","end":"00:51","startHours":23.856609485996522,"endHours":24.856609485996522,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:51","end":"01:51","startHours":24.856609485996522,"endHours":25.856609485996522,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:51","end":"02:51","startHours":25.856609485996522,"endHours":26.856609485996522,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:51","end":"03:51","startHours":26.856609485996522,"endHours":27.856609485996522,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:51","end":"04:51","startHours":27.856609485996522,"endHours":28.856609485996522,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:51","end":"05:51","startHours":28.856609485996522,"endHours":29.856609485996522,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":9.330470365080075,"eotMinutes":-0.240124057807095,"ayanamsa":22.7813}},"calendars":{"vikram_samvat":1980,"vikram_samvatsara":"Dhātṛ","saka_samvat":1845,"saka_samvatsara":"Rudhirodgāri","bengali_samvat":1330,"malayalam_era":1099,"nanakshahi_year":454,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Caturdaśī · Vikram 1980 Dhātṛ · Śaka 1845 Rudhirodgāri"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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 April 15, 1923 CE · Ṛṣikeśa · Vidhyamitra","description":"April 15, 1923 CE for Ṛṣikeśa: Kṛṣṇa Caturdaśī, sūryodaya 05:51, sūryāsta 18:43.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1923-04-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1923-04-15","sa":"https://sa.vidhyamitra.com/city/rishikesh/1923-04-15","hi":"https://hi.vidhyamitra.com/city/rishikesh/1923-04-15","x-default":"https://vidhyamitra.com/city/rishikesh/1923-04-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T13:29:49.640Z","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":"2026-06-01T13:29:49.640Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T13:29:49.640Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}