{"id":"vidhyamitra:city-day:rishikesh:2028-05-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2028-05-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2028-05-15","date_display":"May 15, 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":5,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461906.770833,"kali_year":5130,"ahargana":1873441.2708,"sun":{"sidereal_longitude":30.4114,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":285.2976,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":254.8862,"elapsed_within_tithi_degrees":2.8862},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":285.2976,"elapsed_within_degrees":5.2976},"yoga":{"number":24,"name":"Śukla","sum_longitude":315.709},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"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":5,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461906.770833,"ahargana":1873441.2708,"kali_year":5130,"ayanamsa_lahiri":24.2493,"grahas":{"sun":{"sidereal_longitude":30.495614999999987,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":285.11701500000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false,"latitude":0.7212},"mars":{"sidereal_longitude":18.087814999999978,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":50.253015000000005,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":143.155615,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":true},"venus":{"sidereal_longitude":54.797214999999994,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":9.78601500000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":276.0658,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":96.0658,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":2028,"month":5,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461906.770833,"kali_year":5130,"ahargana":1873441.2708,"sun":{"sidereal_longitude":30.4114,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":285.2976,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":254.8862,"elapsed_within_tithi_degrees":2.8862},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":285.2976,"elapsed_within_degrees":5.2976},"yoga":{"number":24,"name":"Śukla","sum_longitude":315.709},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.721,"elongation":105.114},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.721,"opposition_distance":74.886}},"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":"05:23","sunsetLocal":"19:03","solarNoonLocal":"12:13","dayLengthHours":13.668881054430141,"dayLengthDisplay":"13 Hours 40 Mins 08 Secs","nightLengthDisplay":"10 Hours 19 Mins 52 Secs","moonriseLocal":"23:52","moonsetLocal":"10:31","rahuKala":{"name":"Rāhu Kāla","start":"07:06","end":"08:48","startHours":7.0937262556565965,"endHours":8.802336387460365,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:31","end":"12:13","startHours":10.510946519264131,"endHours":12.2195566510679,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:56","end":"15:38","startHours":13.928166782871667,"endHours":15.636776914675433,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:34","end":"09:02","startHours":8.574521703219862,"endHours":9.030151071700868,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:57","end":"06:19","startHours":5.954652834454086,"endHours":6.31915632923889,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:41","startHours":11.763927282586895,"endHours":12.675186019548903,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:34","end":"04:28","startHours":3.5625986499288107,"endHours":4.47385738689082,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:15","end":"05:23","startHours":4.246042702650318,"endHours":5.385116123852829,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:30","end":"15:25","startHours":14.497703493472923,"endHours":15.408962230434932,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:51","end":"19:15","startHours":18.85399717828297,"endHours":19.25399717828297,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:03","end":"19:37","startHours":19.05399717828297,"endHours":19.623533888884225,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:48","end":"20:33","startHours":18.80399717828297,"endHours":20.55399717828297,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:41","startHours":23.76392728258689,"endHours":24.675186019548903,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:23","end":"07:06","startHours":5.385116123852829,"endHours":7.0937262556565965,"quality":"auspicious"},{"name":"Kāla","start":"07:06","end":"08:48","startHours":7.0937262556565965,"endHours":8.802336387460365,"quality":"inauspicious"},{"name":"Śubha","start":"08:48","end":"10:31","startHours":8.802336387460365,"endHours":10.510946519264131,"quality":"auspicious"},{"name":"Roga","start":"10:31","end":"12:13","startHours":10.510946519264131,"endHours":12.2195566510679,"quality":"inauspicious"},{"name":"Udveg","start":"12:13","end":"13:56","startHours":12.2195566510679,"endHours":13.928166782871667,"quality":"inauspicious"},{"name":"Chala","start":"13:56","end":"15:38","startHours":13.928166782871667,"endHours":15.636776914675433,"quality":"neutral"},{"name":"Labha","start":"15:38","end":"17:21","startHours":15.636776914675433,"endHours":17.345387046479203,"quality":"auspicious"},{"name":"Amṛta","start":"17:21","end":"19:03","startHours":17.345387046479203,"endHours":19.05399717828297,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:03","end":"20:21","startHours":19.05399717828297,"endHours":20.345387046479203,"quality":"neutral"},{"name":"Labha","start":"20:21","end":"21:38","startHours":20.345387046479203,"endHours":21.636776914675433,"quality":"auspicious"},{"name":"Amṛta","start":"21:38","end":"22:56","startHours":21.636776914675433,"endHours":22.928166782871667,"quality":"auspicious"},{"name":"Kāla","start":"22:56","end":"00:13","startHours":22.928166782871667,"endHours":24.219556651067897,"quality":"inauspicious"},{"name":"Śubha","start":"00:13","end":"01:31","startHours":24.219556651067897,"endHours":25.51094651926413,"quality":"auspicious"},{"name":"Roga","start":"01:31","end":"02:48","startHours":25.51094651926413,"endHours":26.802336387460365,"quality":"inauspicious"},{"name":"Udveg","start":"02:48","end":"04:06","startHours":26.802336387460365,"endHours":28.0937262556566,"quality":"inauspicious"},{"name":"Chala","start":"04:06","end":"05:23","startHours":28.0937262556566,"endHours":29.38511612385283,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:23","end":"06:23","startHours":5.385116123852829,"endHours":6.385116123852829,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:23","end":"07:23","startHours":6.385116123852829,"endHours":7.385116123852829,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:23","end":"08:23","startHours":7.385116123852829,"endHours":8.385116123852828,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:23","end":"09:23","startHours":8.385116123852828,"endHours":9.385116123852828,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:23","end":"10:23","startHours":9.385116123852828,"endHours":10.385116123852828,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:23","end":"11:23","startHours":10.385116123852828,"endHours":11.385116123852828,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:23","end":"12:23","startHours":11.385116123852828,"endHours":12.385116123852828,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:23","end":"13:23","startHours":12.385116123852828,"endHours":13.385116123852828,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:23","end":"14:23","startHours":13.385116123852828,"endHours":14.385116123852828,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:23","end":"15:23","startHours":14.385116123852828,"endHours":15.385116123852828,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:23","end":"16:23","startHours":15.385116123852828,"endHours":16.38511612385283,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:23","end":"17:23","startHours":16.38511612385283,"endHours":17.38511612385283,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:23","end":"18:23","startHours":17.38511612385283,"endHours":18.38511612385283,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:23","end":"19:23","startHours":18.38511612385283,"endHours":19.38511612385283,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:23","end":"20:23","startHours":19.38511612385283,"endHours":20.38511612385283,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:23","end":"21:23","startHours":20.38511612385283,"endHours":21.38511612385283,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:23","end":"22:23","startHours":21.38511612385283,"endHours":22.38511612385283,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:23","end":"23:23","startHours":22.38511612385283,"endHours":23.38511612385283,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:23","end":"00:23","startHours":23.38511612385283,"endHours":24.38511612385283,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:23","end":"01:23","startHours":24.38511612385283,"endHours":25.38511612385283,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:23","end":"02:23","startHours":25.38511612385283,"endHours":26.38511612385283,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:23","end":"03:23","startHours":26.38511612385283,"endHours":27.38511612385283,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:23","end":"04:23","startHours":27.38511612385283,"endHours":28.38511612385283,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:23","end":"05:23","startHours":28.38511612385283,"endHours":29.38511612385283,"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":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"drikRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":18.952518401615635,"eotMinutes":3.7562009359260493,"ayanamsa":24.2493}},"calendars":{"vikram_samvat":2085,"vikram_samvatsara":"Durmati","saka_samvat":1950,"saka_samvatsara":"Kīlaka","bengali_samvat":1435,"malayalam_era":1204,"nanakshahi_year":559,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Saptamī · Vikram 2085 Durmati · Śaka 1950 Kīlaka"},"festivals":[{"id":"vrishabha-sankranti","name":"Vṛṣabha Saṅkrānti","name_sanskrit":"वृषभ सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Taurus.","vrata":false,"detection":{"sun_rashi":"Vṛṣabha"},"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":[]},"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 15, 2028 CE · Ṛṣikeśa · Vidhyamitra","description":"May 15, 2028 CE for Ṛṣikeśa: Kṛṣṇa Saptamī, sūryodaya 05:23, sūryāsta 19:03.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2028-05-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2028-05-15","sa":"https://sa.vidhyamitra.com/city/rishikesh/2028-05-15","hi":"https://hi.vidhyamitra.com/city/rishikesh/2028-05-15","x-default":"https://vidhyamitra.com/city/rishikesh/2028-05-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T01:17:01.345Z","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":"2026-05-15T01:17:01.345Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T01:17:01.345Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}