{"id":"vidhyamitra:city-day:rishikesh:1918-04-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1918-04-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1918-04-04","date_display":"April 4, 1918 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":1918,"month":4,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2421687.770833,"kali_year":5019,"ahargana":1833222.2708,"sun":{"sidereal_longitude":351.1005,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":258.371,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":267.2705,"elapsed_within_tithi_degrees":3.2705},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2,"moon_longitude":258.371,"elapsed_within_degrees":5.0376},"yoga":{"number":19,"name":"Parigha","sum_longitude":249.4715},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1918,"month":4,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2421687.770833,"ahargana":1833222.2708,"kali_year":5019,"ayanamsa_lahiri":22.7111,"grahas":{"sun":{"sidereal_longitude":350.750176,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":254.38817599999993,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false,"latitude":0.8816},"mars":{"sidereal_longitude":145.205176,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":10.533075999999994,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":46.006276000000014,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":306.918776,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":105.44807600000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":247.062,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":67.062,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":1918,"month":4,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2421687.770833,"kali_year":5019,"ahargana":1833222.2708,"sun":{"sidereal_longitude":351.1005,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":258.371,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":267.2705,"elapsed_within_tithi_degrees":3.2705},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2,"moon_longitude":258.371,"elapsed_within_degrees":5.0376},"yoga":{"number":19,"name":"Parigha","sum_longitude":249.4715},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.882,"elongation":92.73},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.882,"opposition_distance":87.27}},"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":"06:04","sunsetLocal":"18:37","solarNoonLocal":"12:20","dayLengthHours":12.540930728729613,"dayLengthDisplay":"12 Hours 32 Mins 27 Secs","nightLengthDisplay":"11 Hours 27 Mins 33 Secs","moonriseLocal":"00:50","moonsetLocal":"11:00","rahuKala":{"name":"Rāhu Kāla","start":"13:54","end":"15:28","startHours":13.906503392740039,"endHours":15.474119733831241,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:04","end":"07:38","startHours":6.06842168728403,"endHours":7.636038028375232,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:12","end":"10:46","startHours":9.203654369466435,"endHours":10.771270710557635,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:00","end":"09:25","startHours":8.99463885732094,"endHours":9.412669881611928,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:35","end":"06:56","startHours":6.590960467647764,"endHours":6.9253852870805535,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:45","startHours":11.920856027357848,"endHours":12.756918075939824,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:24","end":"05:14","startHours":4.396297590120082,"endHours":5.232359638702056,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:01","end":"06:04","startHours":5.023344126556562,"endHours":6.06842168728403,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:16","startHours":14.429042173103774,"endHours":15.265104221685748,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:25","end":"18:49","startHours":18.409352416013643,"endHours":18.809352416013642,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:37","end":"19:08","startHours":18.609352416013643,"endHours":19.131891196377378,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:22","end":"20:07","startHours":18.359352416013643,"endHours":20.109352416013643,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:45","startHours":23.92085602735785,"endHours":24.756918075939822,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:04","end":"07:38","startHours":6.06842168728403,"endHours":7.636038028375232,"quality":"auspicious"},{"name":"Roga","start":"07:38","end":"09:12","startHours":7.636038028375232,"endHours":9.203654369466435,"quality":"inauspicious"},{"name":"Udveg","start":"09:12","end":"10:46","startHours":9.203654369466435,"endHours":10.771270710557635,"quality":"inauspicious"},{"name":"Chala","start":"10:46","end":"12:20","startHours":10.771270710557635,"endHours":12.338887051648836,"quality":"neutral"},{"name":"Labha","start":"12:20","end":"13:54","startHours":12.338887051648836,"endHours":13.906503392740039,"quality":"auspicious"},{"name":"Amṛta","start":"13:54","end":"15:28","startHours":13.906503392740039,"endHours":15.474119733831241,"quality":"auspicious"},{"name":"Kāla","start":"15:28","end":"17:03","startHours":15.474119733831241,"endHours":17.04173607492244,"quality":"inauspicious"},{"name":"Śubha","start":"17:03","end":"18:37","startHours":17.04173607492244,"endHours":18.609352416013643,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:37","end":"20:03","startHours":18.609352416013643,"endHours":20.04173607492244,"quality":"auspicious"},{"name":"Kāla","start":"20:03","end":"21:28","startHours":20.04173607492244,"endHours":21.474119733831238,"quality":"inauspicious"},{"name":"Śubha","start":"21:28","end":"22:54","startHours":21.474119733831238,"endHours":22.90650339274004,"quality":"auspicious"},{"name":"Roga","start":"22:54","end":"00:20","startHours":22.90650339274004,"endHours":24.338887051648836,"quality":"inauspicious"},{"name":"Udveg","start":"00:20","end":"01:46","startHours":24.338887051648836,"endHours":25.771270710557634,"quality":"inauspicious"},{"name":"Chala","start":"01:46","end":"03:12","startHours":25.771270710557634,"endHours":27.203654369466435,"quality":"neutral"},{"name":"Labha","start":"03:12","end":"04:38","startHours":27.203654369466435,"endHours":28.636038028375232,"quality":"auspicious"},{"name":"Amṛta","start":"04:38","end":"06:04","startHours":28.636038028375232,"endHours":30.06842168728403,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:04","end":"07:04","startHours":6.06842168728403,"endHours":7.06842168728403,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:04","end":"08:04","startHours":7.06842168728403,"endHours":8.06842168728403,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:04","end":"09:04","startHours":8.06842168728403,"endHours":9.06842168728403,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:04","end":"10:04","startHours":9.06842168728403,"endHours":10.06842168728403,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:04","end":"11:04","startHours":10.06842168728403,"endHours":11.06842168728403,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:04","end":"12:04","startHours":11.06842168728403,"endHours":12.06842168728403,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:04","end":"13:04","startHours":12.06842168728403,"endHours":13.06842168728403,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:04","end":"14:04","startHours":13.06842168728403,"endHours":14.06842168728403,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:04","end":"15:04","startHours":14.06842168728403,"endHours":15.06842168728403,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:04","end":"16:04","startHours":15.06842168728403,"endHours":16.06842168728403,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:04","end":"17:04","startHours":16.06842168728403,"endHours":17.06842168728403,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:04","end":"18:04","startHours":17.06842168728403,"endHours":18.06842168728403,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:04","end":"19:04","startHours":18.06842168728403,"endHours":19.06842168728403,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:04","end":"20:04","startHours":19.06842168728403,"endHours":20.06842168728403,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:04","end":"21:04","startHours":20.06842168728403,"endHours":21.06842168728403,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:04","end":"22:04","startHours":21.06842168728403,"endHours":22.06842168728403,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:04","end":"23:04","startHours":22.06842168728403,"endHours":23.06842168728403,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:04","end":"00:04","startHours":23.06842168728403,"endHours":24.06842168728403,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:04","end":"01:04","startHours":24.06842168728403,"endHours":25.06842168728403,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:04","end":"02:04","startHours":25.06842168728403,"endHours":26.06842168728403,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:04","end":"03:04","startHours":26.06842168728403,"endHours":27.06842168728403,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:04","end":"04:04","startHours":27.06842168728403,"endHours":28.06842168728403,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:04","end":"05:04","startHours":28.06842168728403,"endHours":29.06842168728403,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:04","end":"06:04","startHours":29.06842168728403,"endHours":30.06842168728403,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":5.312475519471227,"eotMinutes":-3.4036230989301703,"ayanamsa":22.7111}},"calendars":{"vikram_samvat":1975,"vikram_samvatsara":"Prajāpati","saka_samvat":1840,"saka_samvatsara":"Kālayukta","bengali_samvat":1325,"malayalam_era":1094,"nanakshahi_year":449,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Phālguna","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Kṛṣṇa Aṣṭamī · Vikram 1975 Prajāpati · Śaka 1840 Kālayukta"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","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 April 4, 1918 CE · Ṛṣikeśa · Vidhyamitra","description":"April 4, 1918 CE for Ṛṣikeśa: Kṛṣṇa Aṣṭamī, sūryodaya 06:04, sūryāsta 18:37.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1918-04-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1918-04-04","sa":"https://sa.vidhyamitra.com/city/rishikesh/1918-04-04","hi":"https://hi.vidhyamitra.com/city/rishikesh/1918-04-04","x-default":"https://vidhyamitra.com/city/rishikesh/1918-04-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:19:28.512Z","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":"2026-05-31T18:19:28.512Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:19:28.512Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}