{"id":"vidhyamitra:city-day:rishikesh:2080-02-29:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2080-02-29","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2080-02-29","date_display":"February 29, 2080 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":2080,"month":2,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2480823.770833,"kali_year":5181,"ahargana":1892358.2708,"sun":{"sidereal_longitude":315.3527,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":57.2376,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":101.8849,"elapsed_within_tithi_degrees":5.8849},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2,"moon_longitude":57.2376,"elapsed_within_degrees":3.9043},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":12.5904},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2080,"month":2,"day":29,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2480823.770833,"ahargana":1892358.2708,"kali_year":5181,"ayanamsa_lahiri":24.9728,"grahas":{"sun":{"sidereal_longitude":315.389546,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":54.88134600000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false,"latitude":4.0259},"mars":{"sidereal_longitude":222.669446,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":289.49984599999993,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":282.971546,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"venus":{"sidereal_longitude":293.797546,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":284.71664599999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":353.7521,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":173.7521,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","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":2080,"month":2,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2480823.770833,"kali_year":5181,"ahargana":1892358.2708,"sun":{"sidereal_longitude":315.3527,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":57.2376,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":101.8849,"elapsed_within_tithi_degrees":5.8849},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2,"moon_longitude":57.2376,"elapsed_within_degrees":3.9043},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":12.5904},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.026,"elongation":101.885},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.026,"opposition_distance":78.115}},"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":"06:44","sunsetLocal":"18:16","solarNoonLocal":"12:30","dayLengthHours":11.532250734481632,"dayLengthDisplay":"11 Hours 31 Mins 56 Secs","nightLengthDisplay":"12 Hours 28 Mins 04 Secs","moonriseLocal":"12:08","moonsetLocal":"02:08","rahuKala":{"name":"Rāhu Kāla","start":"13:56","end":"15:23","startHours":13.941077011095452,"endHours":15.382608352905653,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:44","end":"08:10","startHours":6.73342030204443,"endHours":8.174951643854634,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:37","end":"11:03","startHours":9.616482985664838,"endHours":11.058014327475043,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:25","end":"09:49","startHours":9.42427880675681,"endHours":9.808687164572866,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:13","end":"07:31","startHours":7.213930749314498,"endHours":7.521457435567341,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:07","end":"12:53","startHours":12.11513731146919,"endHours":12.8839540271013,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:12","end":"05:58","startHours":5.195786870780212,"endHours":5.964603586412322,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:46","end":"06:44","startHours":5.772399407504294,"endHours":6.73342030204443,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:25","end":"15:11","startHours":14.421587458365519,"endHours":15.190404173997628,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:04","end":"18:28","startHours":18.065671036526062,"endHours":18.46567103652606,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:16","end":"18:45","startHours":18.26567103652606,"endHours":18.74618148379613,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:01","end":"19:46","startHours":18.01567103652606,"endHours":19.76567103652606,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:07","end":"00:53","startHours":24.115137311469194,"endHours":24.8839540271013,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:44","end":"08:10","startHours":6.73342030204443,"endHours":8.174951643854634,"quality":"auspicious"},{"name":"Roga","start":"08:10","end":"09:37","startHours":8.174951643854634,"endHours":9.616482985664838,"quality":"inauspicious"},{"name":"Udveg","start":"09:37","end":"11:03","startHours":9.616482985664838,"endHours":11.058014327475043,"quality":"inauspicious"},{"name":"Chala","start":"11:03","end":"12:30","startHours":11.058014327475043,"endHours":12.499545669285247,"quality":"neutral"},{"name":"Labha","start":"12:30","end":"13:56","startHours":12.499545669285247,"endHours":13.941077011095452,"quality":"auspicious"},{"name":"Amṛta","start":"13:56","end":"15:23","startHours":13.941077011095452,"endHours":15.382608352905653,"quality":"auspicious"},{"name":"Kāla","start":"15:23","end":"16:49","startHours":15.382608352905653,"endHours":16.824139694715857,"quality":"inauspicious"},{"name":"Śubha","start":"16:49","end":"18:16","startHours":16.824139694715857,"endHours":18.26567103652606,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:16","end":"19:49","startHours":18.26567103652606,"endHours":19.824139694715857,"quality":"auspicious"},{"name":"Kāla","start":"19:49","end":"21:23","startHours":19.824139694715857,"endHours":21.382608352905653,"quality":"inauspicious"},{"name":"Śubha","start":"21:23","end":"22:56","startHours":21.382608352905653,"endHours":22.94107701109545,"quality":"auspicious"},{"name":"Roga","start":"22:56","end":"00:30","startHours":22.94107701109545,"endHours":24.499545669285247,"quality":"inauspicious"},{"name":"Udveg","start":"00:30","end":"02:03","startHours":24.499545669285247,"endHours":26.058014327475043,"quality":"inauspicious"},{"name":"Chala","start":"02:03","end":"03:37","startHours":26.058014327475043,"endHours":27.616482985664838,"quality":"neutral"},{"name":"Labha","start":"03:37","end":"05:10","startHours":27.616482985664838,"endHours":29.174951643854634,"quality":"auspicious"},{"name":"Amṛta","start":"05:10","end":"06:44","startHours":29.174951643854634,"endHours":30.73342030204443,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:44","end":"07:44","startHours":6.73342030204443,"endHours":7.73342030204443,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:44","end":"08:44","startHours":7.73342030204443,"endHours":8.73342030204443,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:44","end":"09:44","startHours":8.73342030204443,"endHours":9.73342030204443,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:44","end":"10:44","startHours":9.73342030204443,"endHours":10.73342030204443,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:44","end":"11:44","startHours":10.73342030204443,"endHours":11.73342030204443,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:44","end":"12:44","startHours":11.73342030204443,"endHours":12.73342030204443,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:44","end":"13:44","startHours":12.73342030204443,"endHours":13.73342030204443,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:44","end":"14:44","startHours":13.73342030204443,"endHours":14.73342030204443,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:44","end":"15:44","startHours":14.73342030204443,"endHours":15.73342030204443,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:44","end":"16:44","startHours":15.73342030204443,"endHours":16.73342030204443,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:44","end":"17:44","startHours":16.73342030204443,"endHours":17.73342030204443,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:44","end":"18:44","startHours":17.73342030204443,"endHours":18.73342030204443,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:44","end":"19:44","startHours":18.73342030204443,"endHours":19.73342030204443,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:44","end":"20:44","startHours":19.73342030204443,"endHours":20.73342030204443,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:44","end":"21:44","startHours":20.73342030204443,"endHours":21.73342030204443,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:44","end":"22:44","startHours":21.73342030204443,"endHours":22.73342030204443,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:44","end":"23:44","startHours":22.73342030204443,"endHours":23.73342030204443,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:44","end":"00:44","startHours":23.73342030204443,"endHours":24.73342030204443,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:44","end":"01:44","startHours":24.73342030204443,"endHours":25.73342030204443,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:44","end":"02:44","startHours":25.73342030204443,"endHours":26.73342030204443,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:44","end":"03:44","startHours":26.73342030204443,"endHours":27.73342030204443,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:44","end":"04:44","startHours":27.73342030204443,"endHours":28.73342030204443,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:44","end":"05:44","startHours":28.73342030204443,"endHours":29.73342030204443,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:44","end":"06:44","startHours":29.73342030204443,"endHours":30.73342030204443,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-7.681499116950262,"eotMinutes":-13.043140157114735,"ayanamsa":24.9728}},"calendars":{"vikram_samvat":2137,"vikram_samvatsara":"Pramādī","saka_samvat":2002,"saka_samvatsara":"Śārvarī","bengali_samvat":1487,"malayalam_era":1256,"nanakshahi_year":611,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Phālguna","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Navamī · Vikram 2137 Pramādī · Śaka 2002 Śārvarī"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","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 February 29, 2080 CE · Ṛṣikeśa · Vidhyamitra","description":"February 29, 2080 CE for Ṛṣikeśa: Śukla Navamī, sūryodaya 06:44, sūryāsta 18:16.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2080-02-29","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2080-02-29","sa":"https://sa.vidhyamitra.com/city/rishikesh/2080-02-29","hi":"https://hi.vidhyamitra.com/city/rishikesh/2080-02-29","x-default":"https://vidhyamitra.com/city/rishikesh/2080-02-29"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T22:42:43.705Z","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":"2026-05-30T22:42:43.705Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T22:42:43.705Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}