{"id":"vidhyamitra:city-day:rishikesh:1921-05-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1921-05-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1921-05-07","date_display":"May 7, 1921 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":1921,"month":5,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2422816.770833,"kali_year":5023,"ahargana":1834351.2708,"sun":{"sidereal_longitude":23.3898,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":11.8824,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":348.4926,"elapsed_within_tithi_degrees":0.4926},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":11.8824,"elapsed_within_degrees":11.8824},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":35.2722},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"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":1921,"month":5,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2422816.770833,"ahargana":1834351.2708,"kali_year":5023,"ayanamsa_lahiri":22.7543,"grahas":{"sun":{"sidereal_longitude":23.18034,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":12.617239999999981,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false,"latitude":-0.3637},"mars":{"sidereal_longitude":39.01153999999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":20.04394000000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":136.82024,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":3.1992399999999748,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":145.75763999999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":187.2422,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":7.2422,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":1921,"month":5,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2422816.770833,"kali_year":5023,"ahargana":1834351.2708,"sun":{"sidereal_longitude":23.3898,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":11.8824,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":348.4926,"elapsed_within_tithi_degrees":0.4926},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":11.8824,"elapsed_within_degrees":11.8824},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":35.2722},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.364,"elongation":11.507},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.364,"opposition_distance":168.493}},"eclipse_window_40days":[{"offset_days":-15,"type":"lunar","occurs":true,"moon_latitude":-0.068,"opposition_distance":1.725},{"offset_days":1,"type":"solar","occurs":true,"moon_latitude":-1.406,"elongation":1.055}]},"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":"05:30","sunsetLocal":"18:57","solarNoonLocal":"12:13","dayLengthHours":13.462850671724738,"dayLengthDisplay":"13 Hours 27 Mins 46 Secs","nightLengthDisplay":"10 Hours 32 Mins 14 Secs","moonriseLocal":"04:57","moonsetLocal":"18:05","rahuKala":{"name":"Rāhu Kāla","start":"08:51","end":"10:32","startHours":8.857919655285386,"endHours":10.540775989250978,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:54","end":"15:35","startHours":13.906488657182162,"endHours":15.589344991147755,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:30","end":"07:11","startHours":5.492206987354201,"endHours":7.175063321319794,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:05","startHours":8.63353881075664,"endHours":9.082300499814131,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:03","end":"06:25","startHours":6.0531590986760655,"endHours":6.412168449922058,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:40","startHours":11.774870634159079,"endHours":12.672394012274061,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:42","end":"04:36","startHours":3.6971602311242364,"endHours":4.594683609239219,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:22","end":"05:30","startHours":4.370302764710473,"endHours":5.492206987354201,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:28","end":"15:22","startHours":14.467440768504026,"endHours":15.364964146619009,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:45","end":"19:09","startHours":18.75505765907894,"endHours":19.15505765907894,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:57","end":"19:31","startHours":18.95505765907894,"endHours":19.516009770400803,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:42","end":"20:27","startHours":18.70505765907894,"endHours":20.45505765907894,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:40","startHours":23.77487063415908,"endHours":24.67239401227406,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:30","end":"07:11","startHours":5.492206987354201,"endHours":7.175063321319794,"quality":"inauspicious"},{"name":"Śubha","start":"07:11","end":"08:51","startHours":7.175063321319794,"endHours":8.857919655285386,"quality":"auspicious"},{"name":"Roga","start":"08:51","end":"10:32","startHours":8.857919655285386,"endHours":10.540775989250978,"quality":"inauspicious"},{"name":"Udveg","start":"10:32","end":"12:13","startHours":10.540775989250978,"endHours":12.22363232321657,"quality":"inauspicious"},{"name":"Chala","start":"12:13","end":"13:54","startHours":12.22363232321657,"endHours":13.906488657182162,"quality":"neutral"},{"name":"Labha","start":"13:54","end":"15:35","startHours":13.906488657182162,"endHours":15.589344991147755,"quality":"auspicious"},{"name":"Amṛta","start":"15:35","end":"17:16","startHours":15.589344991147755,"endHours":17.272201325113347,"quality":"auspicious"},{"name":"Kāla","start":"17:16","end":"18:57","startHours":17.272201325113347,"endHours":18.95505765907894,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:57","end":"20:16","startHours":18.95505765907894,"endHours":20.272201325113347,"quality":"auspicious"},{"name":"Amṛta","start":"20:16","end":"21:35","startHours":20.272201325113347,"endHours":21.589344991147755,"quality":"auspicious"},{"name":"Kāla","start":"21:35","end":"22:54","startHours":21.589344991147755,"endHours":22.906488657182162,"quality":"inauspicious"},{"name":"Śubha","start":"22:54","end":"00:13","startHours":22.906488657182162,"endHours":24.22363232321657,"quality":"auspicious"},{"name":"Roga","start":"00:13","end":"01:32","startHours":24.22363232321657,"endHours":25.540775989250978,"quality":"inauspicious"},{"name":"Udveg","start":"01:32","end":"02:51","startHours":25.540775989250978,"endHours":26.857919655285386,"quality":"inauspicious"},{"name":"Chala","start":"02:51","end":"04:11","startHours":26.857919655285386,"endHours":28.175063321319794,"quality":"neutral"},{"name":"Labha","start":"04:11","end":"05:30","startHours":28.175063321319794,"endHours":29.4922069873542,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:30","end":"06:30","startHours":5.492206987354201,"endHours":6.492206987354201,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:30","end":"07:30","startHours":6.492206987354201,"endHours":7.492206987354201,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:30","end":"08:30","startHours":7.492206987354201,"endHours":8.492206987354201,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:30","end":"09:30","startHours":8.492206987354201,"endHours":9.492206987354201,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:30","end":"10:30","startHours":9.492206987354201,"endHours":10.492206987354201,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:30","end":"11:30","startHours":10.492206987354201,"endHours":11.492206987354201,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:30","end":"12:30","startHours":11.492206987354201,"endHours":12.492206987354201,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:30","end":"13:30","startHours":12.492206987354201,"endHours":13.492206987354201,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:30","end":"14:30","startHours":13.492206987354201,"endHours":14.492206987354201,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:30","end":"15:30","startHours":14.492206987354201,"endHours":15.492206987354201,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:30","end":"16:30","startHours":15.492206987354201,"endHours":16.4922069873542,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:30","end":"17:30","startHours":16.4922069873542,"endHours":17.4922069873542,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:30","end":"18:30","startHours":17.4922069873542,"endHours":18.4922069873542,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:30","end":"19:30","startHours":18.4922069873542,"endHours":19.4922069873542,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:30","end":"20:30","startHours":19.4922069873542,"endHours":20.4922069873542,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:30","end":"21:30","startHours":20.4922069873542,"endHours":21.4922069873542,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:30","end":"22:30","startHours":21.4922069873542,"endHours":22.4922069873542,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:30","end":"23:30","startHours":22.4922069873542,"endHours":23.4922069873542,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:30","end":"00:30","startHours":23.4922069873542,"endHours":24.4922069873542,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:30","end":"01:30","startHours":24.4922069873542,"endHours":25.4922069873542,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:30","end":"02:30","startHours":25.4922069873542,"endHours":26.4922069873542,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:30","end":"03:30","startHours":26.4922069873542,"endHours":27.4922069873542,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:30","end":"04:30","startHours":27.4922069873542,"endHours":28.4922069873542,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:30","end":"05:30","startHours":28.4922069873542,"endHours":29.4922069873542,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":16.6060422712885,"eotMinutes":3.5116606070058483,"ayanamsa":22.7543}},"calendars":{"vikram_samvat":1978,"vikram_samvatsara":"Bhāva","saka_samvat":1843,"saka_samvatsara":"Durmati","bengali_samvat":1328,"malayalam_era":1097,"nanakshahi_year":452,"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 Amāvasyā · Vikram 1978 Bhāva · Śaka 1843 Durmati"},"festivals":[],"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":[{"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},{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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 May 7, 1921 CE · Ṛṣikeśa · Vidhyamitra","description":"May 7, 1921 CE for Ṛṣikeśa: Kṛṣṇa Amāvasyā, sūryodaya 05:30, sūryāsta 18:57.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1921-05-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1921-05-07","sa":"https://sa.vidhyamitra.com/city/rishikesh/1921-05-07","hi":"https://hi.vidhyamitra.com/city/rishikesh/1921-05-07","x-default":"https://vidhyamitra.com/city/rishikesh/1921-05-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T10:37:29.987Z","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":"2026-05-31T10:37:29.987Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T10:37:29.987Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}