{"id":"vidhyamitra:city-day:rishikesh:2028-09-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2028-09-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2028-09-11","date_display":"September 11, 2028 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":2028,"month":9,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462025.770833,"kali_year":5130,"ahargana":1873560.2708,"sun":{"sidereal_longitude":143.7981,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":46.1337,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":262.3356,"elapsed_within_tithi_degrees":10.3356},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2,"moon_longitude":46.1337,"elapsed_within_degrees":6.1337},"yoga":{"number":15,"name":"Vajra","sum_longitude":189.9319},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2028,"month":9,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2462025.770833,"ahargana":1873560.2708,"kali_year":5130,"ayanamsa_lahiri":24.2539,"grahas":{"sun":{"sidereal_longitude":144.58506799999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":42.913467999999966,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false,"latitude":3.1031},"mars":{"sidereal_longitude":99.371668,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":170.67976799999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":159.35386800000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":100.90786800000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":16.707468000000006,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":269.7606,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":89.7606,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","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":2028,"month":9,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462025.770833,"kali_year":5130,"ahargana":1873560.2708,"sun":{"sidereal_longitude":143.7981,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":46.1337,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":262.3356,"elapsed_within_tithi_degrees":10.3356},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2,"moon_longitude":46.1337,"elapsed_within_degrees":6.1337},"yoga":{"number":15,"name":"Vajra","sum_longitude":189.9319},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.103,"elongation":97.664},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.103,"opposition_distance":82.336}},"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":"05:59","sunsetLocal":"18:27","solarNoonLocal":"12:13","dayLengthHours":12.470807000952519,"dayLengthDisplay":"12 Hours 28 Mins 15 Secs","nightLengthDisplay":"11 Hours 31 Mins 45 Secs","moonriseLocal":"22:30","moonsetLocal":"12:22","rahuKala":{"name":"Rāhu Kāla","start":"07:32","end":"09:06","startHours":7.53870083873676,"endHours":9.097551713855825,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:39","end":"12:13","startHours":10.656402588974888,"endHours":12.215253464093955,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:46","end":"15:20","startHours":13.774104339213018,"endHours":15.332955214332085,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:18","startHours":8.889704930506616,"endHours":9.305398497205033,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:30","end":"06:50","startHours":6.499466921990717,"endHours":6.8320217753494505,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:48","end":"12:38","startHours":11.799559897395538,"endHours":12.630947030792372,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:19","end":"05:09","startHours":4.317075696824025,"endHours":5.14846283022086,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:56","end":"05:59","startHours":4.940616046871652,"endHours":5.979849963617695,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:18","end":"15:08","startHours":14.293721297586039,"endHours":15.125108430982873,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:15","end":"18:39","startHours":18.250656964570215,"endHours":18.650656964570214,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:27","end":"18:58","startHours":18.450656964570214,"endHours":18.970273922943235,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:12","end":"19:57","startHours":18.200656964570214,"endHours":19.950656964570214,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:48","end":"00:38","startHours":23.799559897395536,"endHours":24.630947030792374,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:59","end":"07:32","startHours":5.979849963617695,"endHours":7.53870083873676,"quality":"auspicious"},{"name":"Kāla","start":"07:32","end":"09:06","startHours":7.53870083873676,"endHours":9.097551713855825,"quality":"inauspicious"},{"name":"Śubha","start":"09:06","end":"10:39","startHours":9.097551713855825,"endHours":10.656402588974888,"quality":"auspicious"},{"name":"Roga","start":"10:39","end":"12:13","startHours":10.656402588974888,"endHours":12.215253464093955,"quality":"inauspicious"},{"name":"Udveg","start":"12:13","end":"13:46","startHours":12.215253464093955,"endHours":13.774104339213018,"quality":"inauspicious"},{"name":"Chala","start":"13:46","end":"15:20","startHours":13.774104339213018,"endHours":15.332955214332085,"quality":"neutral"},{"name":"Labha","start":"15:20","end":"16:54","startHours":15.332955214332085,"endHours":16.891806089451148,"quality":"auspicious"},{"name":"Amṛta","start":"16:54","end":"18:27","startHours":16.891806089451148,"endHours":18.450656964570214,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:27","end":"19:54","startHours":18.450656964570214,"endHours":19.89180608945115,"quality":"neutral"},{"name":"Labha","start":"19:54","end":"21:20","startHours":19.89180608945115,"endHours":21.332955214332085,"quality":"auspicious"},{"name":"Amṛta","start":"21:20","end":"22:46","startHours":21.332955214332085,"endHours":22.774104339213018,"quality":"auspicious"},{"name":"Kāla","start":"22:46","end":"00:13","startHours":22.774104339213018,"endHours":24.215253464093955,"quality":"inauspicious"},{"name":"Śubha","start":"00:13","end":"01:39","startHours":24.215253464093955,"endHours":25.656402588974892,"quality":"auspicious"},{"name":"Roga","start":"01:39","end":"03:06","startHours":25.656402588974892,"endHours":27.097551713855825,"quality":"inauspicious"},{"name":"Udveg","start":"03:06","end":"04:32","startHours":27.097551713855825,"endHours":28.53870083873676,"quality":"inauspicious"},{"name":"Chala","start":"04:32","end":"05:59","startHours":28.53870083873676,"endHours":29.979849963617696,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:59","end":"06:59","startHours":5.979849963617695,"endHours":6.979849963617695,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:59","end":"07:59","startHours":6.979849963617695,"endHours":7.979849963617695,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:59","end":"08:59","startHours":7.979849963617695,"endHours":8.979849963617696,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:59","end":"09:59","startHours":8.979849963617696,"endHours":9.979849963617696,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:59","end":"10:59","startHours":9.979849963617696,"endHours":10.979849963617696,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:59","end":"11:59","startHours":10.979849963617696,"endHours":11.979849963617696,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:59","end":"12:59","startHours":11.979849963617696,"endHours":12.979849963617696,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:59","end":"13:59","startHours":12.979849963617696,"endHours":13.979849963617696,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:59","end":"14:59","startHours":13.979849963617696,"endHours":14.979849963617696,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:59","end":"15:59","startHours":14.979849963617696,"endHours":15.979849963617696,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:59","end":"16:59","startHours":15.979849963617696,"endHours":16.979849963617696,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:59","end":"17:59","startHours":16.979849963617696,"endHours":17.979849963617696,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:59","end":"18:59","startHours":17.979849963617696,"endHours":18.979849963617696,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:59","end":"19:59","startHours":18.979849963617696,"endHours":19.979849963617696,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:59","end":"20:59","startHours":19.979849963617696,"endHours":20.979849963617696,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:59","end":"21:59","startHours":20.979849963617696,"endHours":21.979849963617696,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:59","end":"22:59","startHours":21.979849963617696,"endHours":22.979849963617696,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:59","end":"23:59","startHours":22.979849963617696,"endHours":23.979849963617696,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:59","end":"00:59","startHours":23.979849963617696,"endHours":24.979849963617696,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:59","end":"01:59","startHours":24.979849963617696,"endHours":25.979849963617696,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:59","end":"02:59","startHours":25.979849963617696,"endHours":26.979849963617696,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:59","end":"03:59","startHours":26.979849963617696,"endHours":27.979849963617696,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:59","end":"04:59","startHours":27.979849963617696,"endHours":28.979849963617696,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:59","end":"05:59","startHours":28.979849963617696,"endHours":29.979849963617696,"planetary_lord":"Venus"}],"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":"North-East","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":4.415452914456996,"eotMinutes":4.014392154362758,"ayanamsa":24.2539}},"calendars":{"vikram_samvat":2085,"vikram_samvatsara":"Durmati","saka_samvat":1950,"saka_samvatsara":"Kīlaka","bengali_samvat":1435,"malayalam_era":1204,"nanakshahi_year":559,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Saptamī · Vikram 2085 Durmati · Śaka 1950 Kīlaka"},"festivals":[{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"precedence":5}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 Rohiṇī","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 September 11, 2028 CE · Ṛṣikeśa · Vidhyamitra","description":"September 11, 2028 CE for Ṛṣikeśa: Kṛṣṇa Saptamī, sūryodaya 05:59, sūryāsta 18:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2028-09-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2028-09-11","sa":"https://sa.vidhyamitra.com/city/rishikesh/2028-09-11","hi":"https://hi.vidhyamitra.com/city/rishikesh/2028-09-11","x-default":"https://vidhyamitra.com/city/rishikesh/2028-09-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T05:56:48.643Z","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":"2026-05-15T05:56:48.643Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T05:56:48.643Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}