{"id":"vidhyamitra:city-day:rishikesh:1931-09-05:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1931-09-05","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1931-09-05","date_display":"September 5, 1931 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":1931,"month":9,"day":5,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2426589.770833,"kali_year":5033,"ahargana":1838124.2708,"sun":{"sidereal_longitude":138.0862,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":48.9303,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":270.844,"elapsed_within_tithi_degrees":6.844},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":48.9303,"elapsed_within_degrees":8.9303},"yoga":{"number":15,"name":"Vajra","sum_longitude":187.0165},"karana":{"half_tithi_index":45,"name":"Kaulava"},"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":1931,"month":9,"day":5,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2426589.770833,"ahargana":1838124.2708,"kali_year":5033,"ayanamsa_lahiri":22.8986,"grahas":{"sun":{"sidereal_longitude":138.62068399999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":45.479984,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false,"latitude":3.9575},"mars":{"sidereal_longitude":179.878284,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":139.632184,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":108.49678400000005,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":138.744284,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":264.41378399999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":347.3305,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":167.3305,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":1931,"month":9,"day":5,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2426589.770833,"kali_year":5033,"ahargana":1838124.2708,"sun":{"sidereal_longitude":138.0862,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":48.9303,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":270.844,"elapsed_within_tithi_degrees":6.844},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":48.9303,"elapsed_within_degrees":8.9303},"yoga":{"number":15,"name":"Vajra","sum_longitude":187.0165},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.957,"elongation":89.156},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.957,"opposition_distance":90.844}},"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":"05:54","sunsetLocal":"18:36","solarNoonLocal":"12:15","dayLengthHours":12.692848650651769,"dayLengthDisplay":"12 Hours 41 Mins 34 Secs","nightLengthDisplay":"11 Hours 18 Mins 26 Secs","moonriseLocal":"23:06","moonsetLocal":"12:59","rahuKala":{"name":"Rāhu Kāla","start":"09:05","end":"10:40","startHours":9.078156765869679,"endHours":10.66476284720115,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:50","end":"15:25","startHours":13.837975009864092,"endHours":15.424581091195563,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:54","end":"07:29","startHours":5.9049446032067365,"endHours":7.491550684538208,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:17","startHours":8.866609288358816,"endHours":9.289704243380541,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:26","end":"06:46","startHours":6.433813296983893,"endHours":6.772289261001274,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:40","startHours":11.828273973510894,"endHours":12.674463883554347,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:13","end":"05:04","startHours":4.212564783119834,"endHours":5.058754693163285,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:51","end":"05:54","startHours":4.847207215652422,"endHours":5.9049446032067365,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:13","startHours":14.36684370364125,"endHours":15.2130336136847,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:24","end":"18:48","startHours":18.397793253858506,"endHours":18.797793253858504,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:36","end":"19:08","startHours":18.597793253858505,"endHours":19.12666194763566,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:21","end":"20:06","startHours":18.347793253858505,"endHours":20.097793253858505,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:40","startHours":23.828273973510896,"endHours":24.674463883554346,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:54","end":"07:29","startHours":5.9049446032067365,"endHours":7.491550684538208,"quality":"inauspicious"},{"name":"Śubha","start":"07:29","end":"09:05","startHours":7.491550684538208,"endHours":9.078156765869679,"quality":"auspicious"},{"name":"Roga","start":"09:05","end":"10:40","startHours":9.078156765869679,"endHours":10.66476284720115,"quality":"inauspicious"},{"name":"Udveg","start":"10:40","end":"12:15","startHours":10.66476284720115,"endHours":12.25136892853262,"quality":"inauspicious"},{"name":"Chala","start":"12:15","end":"13:50","startHours":12.25136892853262,"endHours":13.837975009864092,"quality":"neutral"},{"name":"Labha","start":"13:50","end":"15:25","startHours":13.837975009864092,"endHours":15.424581091195563,"quality":"auspicious"},{"name":"Amṛta","start":"15:25","end":"17:01","startHours":15.424581091195563,"endHours":17.011187172527034,"quality":"auspicious"},{"name":"Kāla","start":"17:01","end":"18:36","startHours":17.011187172527034,"endHours":18.597793253858505,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:36","end":"20:01","startHours":18.597793253858505,"endHours":20.011187172527034,"quality":"auspicious"},{"name":"Amṛta","start":"20:01","end":"21:25","startHours":20.011187172527034,"endHours":21.424581091195563,"quality":"auspicious"},{"name":"Kāla","start":"21:25","end":"22:50","startHours":21.424581091195563,"endHours":22.837975009864092,"quality":"inauspicious"},{"name":"Śubha","start":"22:50","end":"00:15","startHours":22.837975009864092,"endHours":24.25136892853262,"quality":"auspicious"},{"name":"Roga","start":"00:15","end":"01:40","startHours":24.25136892853262,"endHours":25.66476284720115,"quality":"inauspicious"},{"name":"Udveg","start":"01:40","end":"03:05","startHours":25.66476284720115,"endHours":27.07815676586968,"quality":"inauspicious"},{"name":"Chala","start":"03:05","end":"04:29","startHours":27.07815676586968,"endHours":28.491550684538208,"quality":"neutral"},{"name":"Labha","start":"04:29","end":"05:54","startHours":28.491550684538208,"endHours":29.904944603206737,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:54","end":"06:54","startHours":5.9049446032067365,"endHours":6.9049446032067365,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:54","end":"07:54","startHours":6.9049446032067365,"endHours":7.9049446032067365,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:54","end":"08:54","startHours":7.9049446032067365,"endHours":8.904944603206737,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:54","end":"09:54","startHours":8.904944603206737,"endHours":9.904944603206737,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:54","end":"10:54","startHours":9.904944603206737,"endHours":10.904944603206737,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:54","end":"11:54","startHours":10.904944603206737,"endHours":11.904944603206737,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:54","end":"12:54","startHours":11.904944603206737,"endHours":12.904944603206737,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:54","end":"13:54","startHours":12.904944603206737,"endHours":13.904944603206737,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:54","end":"14:54","startHours":13.904944603206737,"endHours":14.904944603206737,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:54","end":"15:54","startHours":14.904944603206737,"endHours":15.904944603206737,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:54","end":"16:54","startHours":15.904944603206737,"endHours":16.904944603206737,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:54","end":"17:54","startHours":16.904944603206737,"endHours":17.904944603206737,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:54","end":"18:54","startHours":17.904944603206737,"endHours":18.904944603206737,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:54","end":"19:54","startHours":18.904944603206737,"endHours":19.904944603206737,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:54","end":"20:54","startHours":19.904944603206737,"endHours":20.904944603206737,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:54","end":"21:54","startHours":20.904944603206737,"endHours":21.904944603206737,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:54","end":"22:54","startHours":21.904944603206737,"endHours":22.904944603206737,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:54","end":"23:54","startHours":22.904944603206737,"endHours":23.904944603206737,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:54","end":"00:54","startHours":23.904944603206737,"endHours":24.904944603206737,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:54","end":"01:54","startHours":24.904944603206737,"endHours":25.904944603206737,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:54","end":"02:54","startHours":25.904944603206737,"endHours":26.904944603206737,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:54","end":"03:54","startHours":26.904944603206737,"endHours":27.904944603206737,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:54","end":"04:54","startHours":27.904944603206737,"endHours":28.904944603206737,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:54","end":"05:54","startHours":28.904944603206737,"endHours":29.904944603206737,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"East","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":7.2428634607544335,"eotMinutes":1.8474642880427774,"ayanamsa":22.8986}},"calendars":{"vikram_samvat":1988,"vikram_samvatsara":"Tāraṇa","saka_samvat":1853,"saka_samvatsara":"Prajāpati","bengali_samvat":1338,"malayalam_era":1107,"nanakshahi_year":462,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Aṣṭamī · Vikram 1988 Tāraṇa · Śaka 1853 Prajāpati"},"festivals":[{"id":"krishna-janmashtami","name":"Krishna Janmāṣṭamī","name_sanskrit":"कृष्ण जन्माष्टमी","tradition":"Vaishnava","associated_deity":"Krishna (svayaṁ bhagavān)","deity_avatara_index":20,"significance":"Bhagavān Krishna manifested at Mathurā midnight on this exact tithi-nakshatra alignment in 3227 BCE.","vrata":true,"primary_observance":"Madhya-rātri (midnight) abhiṣekam in Mathurā tradition","detection":{"tithi_number":23,"tithi_paksha":"Kṛṣṇa","nakshatra_name":"Rohiṇī","lunar_month":"Bhādrapada"},"precedence":1,"related_chart":"krishna","historical_anchor":{"event":"Bhagavān Krishna's birth at Mathurā","date_julian":"-3226-07-09","location":"Mathurā"},"sources":["Bhāgavata Purāṇa 10.3"]}],"todays_walk":{"walk":{"id":"krishna-janmashtami-walk","name":"Krishna Janmāṣṭamī Walk","name_sanskrit":"कृष्ण जन्माष्टमी यात्रा","type":"festival","description":"Bhāgavata 10.3 (birth at Mathurā) + BG 4.7-8 + 10.8 (Krishna as svayaṁ bhagavān).","step_count":11,"url":"/walk/krishna-janmashtami-walk"},"reason":"Today is Krishna Janmāṣṭamī — its dedicated walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī + Rohiṇī","url":"/day/-3226-07-09","relevance":1}]},"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 September 5, 1931 CE · Ṛṣikeśa · Vidhyamitra","description":"September 5, 1931 CE for Ṛṣikeśa: Kṛṣṇa Aṣṭamī, sūryodaya 05:54, sūryāsta 18:36.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1931-09-05","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1931-09-05","sa":"https://sa.vidhyamitra.com/city/rishikesh/1931-09-05","hi":"https://hi.vidhyamitra.com/city/rishikesh/1931-09-05","x-default":"https://vidhyamitra.com/city/rishikesh/1931-09-05"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T00:22:57.806Z","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":"2026-06-02T00:22:57.806Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T00:22:57.806Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}