{"id":"vidhyamitra:city-day:rishikesh:2097-05-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2097-05-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2097-05-13","date_display":"May 13, 2097 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":2097,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2487106.770833,"kali_year":5199,"ahargana":1898641.2708,"sun":{"sidereal_longitude":27.6741,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":43.4634,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":15.7893,"elapsed_within_tithi_degrees":3.7893},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2,"moon_longitude":43.4634,"elapsed_within_degrees":3.4634},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":71.1375},"karana":{"half_tithi_index":2,"name":"Bālava"},"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":2097,"month":5,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2487106.770833,"ahargana":1898641.2708,"kali_year":5199,"ayanamsa_lahiri":25.2131,"grahas":{"sun":{"sidereal_longitude":27.904089,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":45.661888999999974,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false,"latitude":1.7289},"mars":{"sidereal_longitude":274.93058900000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":4.141688999999985,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":79.97998899999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":340.518489,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":135.39578900000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":20.8486,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":200.8486,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":2097,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2487106.770833,"kali_year":5199,"ahargana":1898641.2708,"sun":{"sidereal_longitude":27.6741,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":43.4634,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":15.7893,"elapsed_within_tithi_degrees":3.7893},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2,"moon_longitude":43.4634,"elapsed_within_degrees":3.4634},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":71.1375},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.729,"elongation":15.789},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.729,"opposition_distance":164.211}},"eclipse_window_40days":[{"offset_days":-1,"type":"solar","occurs":true,"moon_latitude":0.638,"elongation":2.343}]},"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":"05:24","sunsetLocal":"19:02","solarNoonLocal":"12:13","dayLengthHours":13.633046345841795,"dayLengthDisplay":"13 Hours 37 Mins 59 Secs","nightLengthDisplay":"10 Hours 22 Mins 01 Secs","moonriseLocal":"06:27","moonsetLocal":"20:22","rahuKala":{"name":"Rāhu Kāla","start":"07:06","end":"08:49","startHours":7.10721030791672,"endHours":8.811341101146944,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:31","end":"12:13","startHours":10.51547189437717,"endHours":12.219602687607393,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:55","end":"15:38","startHours":13.923733480837617,"endHours":15.627864274067843,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:35","end":"09:02","startHours":8.584123662049581,"endHours":9.038558540244308,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:58","end":"06:20","startHours":5.971123112429904,"endHours":6.334671014985685,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:40","startHours":11.765167809412667,"endHours":12.67403756580212,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:35","end":"04:30","startHours":3.58534000190759,"endHours":4.494209758297043,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:16","end":"05:24","startHours":4.26699231919968,"endHours":5.403079514686496,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:30","end":"15:24","startHours":14.491777078581027,"endHours":15.40064683497048,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:50","end":"19:14","startHours":18.83612586052829,"endHours":19.23612586052829,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:02","end":"19:36","startHours":19.03612586052829,"endHours":19.6041694582717,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:47","end":"20:32","startHours":18.78612586052829,"endHours":20.53612586052829,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:40","startHours":23.765167809412667,"endHours":24.674037565802116,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:24","end":"07:06","startHours":5.403079514686496,"endHours":7.10721030791672,"quality":"auspicious"},{"name":"Kāla","start":"07:06","end":"08:49","startHours":7.10721030791672,"endHours":8.811341101146944,"quality":"inauspicious"},{"name":"Śubha","start":"08:49","end":"10:31","startHours":8.811341101146944,"endHours":10.51547189437717,"quality":"auspicious"},{"name":"Roga","start":"10:31","end":"12:13","startHours":10.51547189437717,"endHours":12.219602687607393,"quality":"inauspicious"},{"name":"Udveg","start":"12:13","end":"13:55","startHours":12.219602687607393,"endHours":13.923733480837617,"quality":"inauspicious"},{"name":"Chala","start":"13:55","end":"15:38","startHours":13.923733480837617,"endHours":15.627864274067843,"quality":"neutral"},{"name":"Labha","start":"15:38","end":"17:20","startHours":15.627864274067843,"endHours":17.331995067298067,"quality":"auspicious"},{"name":"Amṛta","start":"17:20","end":"19:02","startHours":17.331995067298067,"endHours":19.03612586052829,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:02","end":"20:20","startHours":19.03612586052829,"endHours":20.331995067298067,"quality":"neutral"},{"name":"Labha","start":"20:20","end":"21:38","startHours":20.331995067298067,"endHours":21.627864274067843,"quality":"auspicious"},{"name":"Amṛta","start":"21:38","end":"22:55","startHours":21.627864274067843,"endHours":22.92373348083762,"quality":"auspicious"},{"name":"Kāla","start":"22:55","end":"00:13","startHours":22.92373348083762,"endHours":24.21960268760739,"quality":"inauspicious"},{"name":"Śubha","start":"00:13","end":"01:31","startHours":24.21960268760739,"endHours":25.51547189437717,"quality":"auspicious"},{"name":"Roga","start":"01:31","end":"02:49","startHours":25.51547189437717,"endHours":26.811341101146944,"quality":"inauspicious"},{"name":"Udveg","start":"02:49","end":"04:06","startHours":26.811341101146944,"endHours":28.10721030791672,"quality":"inauspicious"},{"name":"Chala","start":"04:06","end":"05:24","startHours":28.10721030791672,"endHours":29.403079514686496,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:24","end":"06:24","startHours":5.403079514686496,"endHours":6.403079514686496,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:24","end":"07:24","startHours":6.403079514686496,"endHours":7.403079514686496,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:24","end":"08:24","startHours":7.403079514686496,"endHours":8.403079514686496,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:24","end":"09:24","startHours":8.403079514686496,"endHours":9.403079514686496,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:24","end":"10:24","startHours":9.403079514686496,"endHours":10.403079514686496,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:24","end":"11:24","startHours":10.403079514686496,"endHours":11.403079514686496,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:24","end":"12:24","startHours":11.403079514686496,"endHours":12.403079514686496,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:24","end":"13:24","startHours":12.403079514686496,"endHours":13.403079514686496,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:24","end":"14:24","startHours":13.403079514686496,"endHours":14.403079514686496,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:24","end":"15:24","startHours":14.403079514686496,"endHours":15.403079514686496,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:24","end":"16:24","startHours":15.403079514686496,"endHours":16.403079514686496,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:24","end":"17:24","startHours":16.403079514686496,"endHours":17.403079514686496,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:24","end":"18:24","startHours":17.403079514686496,"endHours":18.403079514686496,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:24","end":"19:24","startHours":18.403079514686496,"endHours":19.403079514686496,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:24","end":"20:24","startHours":19.403079514686496,"endHours":20.403079514686496,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:24","end":"21:24","startHours":20.403079514686496,"endHours":21.403079514686496,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:24","end":"22:24","startHours":21.403079514686496,"endHours":22.403079514686496,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:24","end":"23:24","startHours":22.403079514686496,"endHours":23.403079514686496,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:24","end":"00:24","startHours":23.403079514686496,"endHours":24.403079514686496,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:24","end":"01:24","startHours":24.403079514686496,"endHours":25.403079514686496,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:24","end":"02:24","startHours":25.403079514686496,"endHours":26.403079514686496,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:24","end":"03:24","startHours":26.403079514686496,"endHours":27.403079514686496,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:24","end":"04:24","startHours":27.403079514686496,"endHours":28.403079514686496,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:24","end":"05:24","startHours":28.403079514686496,"endHours":29.403079514686496,"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":"Vasanta (Spring) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":18.55000436158937,"eotMinutes":3.7534387435564067,"ayanamsa":25.2131}},"calendars":{"vikram_samvat":2154,"vikram_samvatsara":"Pramoda","saka_samvat":2019,"saka_samvatsara":"Piṅgala","bengali_samvat":1504,"malayalam_era":1273,"nanakshahi_year":628,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Dvitīyā · Vikram 2154 Pramoda · Śaka 2019 Piṅgala"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2}],"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 May 13, 2097 CE · Ṛṣikeśa · Vidhyamitra","description":"May 13, 2097 CE for Ṛṣikeśa: Śukla Dvitīyā, sūryodaya 05:24, sūryāsta 19:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2097-05-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2097-05-13","sa":"https://sa.vidhyamitra.com/city/rishikesh/2097-05-13","hi":"https://hi.vidhyamitra.com/city/rishikesh/2097-05-13","x-default":"https://vidhyamitra.com/city/rishikesh/2097-05-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T06:24:17.692Z","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":"2026-05-21T06:24:17.692Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T06:24:17.692Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}