{"id":"vidhyamitra:city-day:rishikesh:2081-02-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2081-02-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2081-02-06","date_display":"February 6, 2081 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":2081,"month":2,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2481166.770833,"kali_year":5182,"ahargana":1892701.2708,"sun":{"sidereal_longitude":292.7826,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":261.078,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":328.2954,"elapsed_within_tithi_degrees":4.2954},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3,"moon_longitude":261.078,"elapsed_within_degrees":7.7447},"yoga":{"number":15,"name":"Vajra","sum_longitude":193.8607},"karana":{"half_tithi_index":54,"name":"Gara"},"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":2081,"month":2,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2481166.770833,"ahargana":1892701.2708,"kali_year":5182,"ayanamsa_lahiri":24.9859,"grahas":{"sun":{"sidereal_longitude":292.924841,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"moon":{"sidereal_longitude":262.3675410000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false,"latitude":-4.336},"mars":{"sidereal_longitude":348.733241,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":271.995541,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":304.761041,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":327.359241,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":292.4660409999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":335.5784,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":155.5784,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":2081,"month":2,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2481166.770833,"kali_year":5182,"ahargana":1892701.2708,"sun":{"sidereal_longitude":292.7826,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":261.078,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":328.2954,"elapsed_within_tithi_degrees":4.2954},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3,"moon_longitude":261.078,"elapsed_within_degrees":7.7447},"yoga":{"number":15,"name":"Vajra","sum_longitude":193.8607},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.336,"elongation":31.705},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.336,"opposition_distance":148.295}},"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":"07:04","sunsetLocal":"17:58","solarNoonLocal":"12:31","dayLengthHours":10.905149151273626,"dayLengthDisplay":"10 Hours 54 Mins 19 Secs","nightLengthDisplay":"13 Hours 05 Mins 41 Secs","moonriseLocal":"05:21","moonsetLocal":"15:37","rahuKala":{"name":"Rāhu Kāla","start":"13:53","end":"15:15","startHours":13.883559195867157,"endHours":15.24670283977636,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:04","end":"08:26","startHours":7.06784097632114,"endHours":8.430984620230344,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:48","end":"11:09","startHours":9.794128264139546,"endHours":11.157271908048749,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:37","end":"09:59","startHours":9.612375778284985,"endHours":9.975880749994108,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:31","end":"07:49","startHours":7.522222190957541,"endHours":7.813026168324837,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:53","startHours":12.156910580248832,"endHours":12.883920523667074,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:37","end":"06:20","startHours":5.613821089484656,"endHours":6.340831032902898,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:10","end":"07:04","startHours":6.159078547048337,"endHours":7.06784097632114,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:20","end":"15:04","startHours":14.337940410503558,"endHours":15.0649503539218,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:46","end":"18:10","startHours":17.772990127594767,"endHours":18.172990127594765,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:58","end":"18:26","startHours":17.972990127594766,"endHours":18.42737134223117,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:43","end":"19:28","startHours":17.722990127594766,"endHours":19.472990127594766,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:53","startHours":24.156910580248834,"endHours":24.883920523667072,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:04","end":"08:26","startHours":7.06784097632114,"endHours":8.430984620230344,"quality":"auspicious"},{"name":"Roga","start":"08:26","end":"09:48","startHours":8.430984620230344,"endHours":9.794128264139546,"quality":"inauspicious"},{"name":"Udveg","start":"09:48","end":"11:09","startHours":9.794128264139546,"endHours":11.157271908048749,"quality":"inauspicious"},{"name":"Chala","start":"11:09","end":"12:31","startHours":11.157271908048749,"endHours":12.520415551957953,"quality":"neutral"},{"name":"Labha","start":"12:31","end":"13:53","startHours":12.520415551957953,"endHours":13.883559195867157,"quality":"auspicious"},{"name":"Amṛta","start":"13:53","end":"15:15","startHours":13.883559195867157,"endHours":15.24670283977636,"quality":"auspicious"},{"name":"Kāla","start":"15:15","end":"16:37","startHours":15.24670283977636,"endHours":16.609846483685562,"quality":"inauspicious"},{"name":"Śubha","start":"16:37","end":"17:58","startHours":16.609846483685562,"endHours":17.972990127594766,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:58","end":"19:37","startHours":17.972990127594766,"endHours":19.609846483685562,"quality":"auspicious"},{"name":"Kāla","start":"19:37","end":"21:15","startHours":19.609846483685562,"endHours":21.24670283977636,"quality":"inauspicious"},{"name":"Śubha","start":"21:15","end":"22:53","startHours":21.24670283977636,"endHours":22.883559195867157,"quality":"auspicious"},{"name":"Roga","start":"22:53","end":"00:31","startHours":22.883559195867157,"endHours":24.520415551957953,"quality":"inauspicious"},{"name":"Udveg","start":"00:31","end":"02:09","startHours":24.520415551957953,"endHours":26.15727190804875,"quality":"inauspicious"},{"name":"Chala","start":"02:09","end":"03:48","startHours":26.15727190804875,"endHours":27.794128264139545,"quality":"neutral"},{"name":"Labha","start":"03:48","end":"05:26","startHours":27.794128264139545,"endHours":29.430984620230344,"quality":"auspicious"},{"name":"Amṛta","start":"05:26","end":"07:04","startHours":29.430984620230344,"endHours":31.06784097632114,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:04","end":"08:04","startHours":7.06784097632114,"endHours":8.06784097632114,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:04","end":"09:04","startHours":8.06784097632114,"endHours":9.06784097632114,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:04","end":"10:04","startHours":9.06784097632114,"endHours":10.06784097632114,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:04","end":"11:04","startHours":10.06784097632114,"endHours":11.06784097632114,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:04","end":"12:04","startHours":11.06784097632114,"endHours":12.06784097632114,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:04","end":"13:04","startHours":12.06784097632114,"endHours":13.06784097632114,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:04","end":"14:04","startHours":13.06784097632114,"endHours":14.06784097632114,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:04","end":"15:04","startHours":14.06784097632114,"endHours":15.06784097632114,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:04","end":"16:04","startHours":15.06784097632114,"endHours":16.06784097632114,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:04","end":"17:04","startHours":16.06784097632114,"endHours":17.06784097632114,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:04","end":"18:04","startHours":17.06784097632114,"endHours":18.06784097632114,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:04","end":"19:04","startHours":18.06784097632114,"endHours":19.06784097632114,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:04","end":"20:04","startHours":19.06784097632114,"endHours":20.06784097632114,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:04","end":"21:04","startHours":20.06784097632114,"endHours":21.06784097632114,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:04","end":"22:04","startHours":21.06784097632114,"endHours":22.06784097632114,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:04","end":"23:04","startHours":22.06784097632114,"endHours":23.06784097632114,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:04","end":"00:04","startHours":23.06784097632114,"endHours":24.06784097632114,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:04","end":"01:04","startHours":24.06784097632114,"endHours":25.06784097632114,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:04","end":"02:04","startHours":25.06784097632114,"endHours":26.06784097632114,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:04","end":"03:04","startHours":26.06784097632114,"endHours":27.06784097632114,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:04","end":"04:04","startHours":27.06784097632114,"endHours":28.06784097632114,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:04","end":"05:04","startHours":28.06784097632114,"endHours":29.06784097632114,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:04","end":"06:04","startHours":29.06784097632114,"endHours":30.06784097632114,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:04","end":"07:04","startHours":30.06784097632114,"endHours":31.06784097632114,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-15.461755578571905,"eotMinutes":-14.295333117477217,"ayanamsa":24.9859}},"calendars":{"vikram_samvat":2138,"vikram_samvatsara":"Ānanda","saka_samvat":2003,"saka_samvatsara":"Plava","bengali_samvat":1488,"malayalam_era":1257,"nanakshahi_year":612,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Trayodaśī · Vikram 2138 Ānanda · Śaka 2003 Plava"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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":[]},"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 6, 2081 CE · Ṛṣikeśa · Vidhyamitra","description":"February 6, 2081 CE for Ṛṣikeśa: Kṛṣṇa Trayodaśī, sūryodaya 07:04, sūryāsta 17:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2081-02-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2081-02-06","sa":"https://sa.vidhyamitra.com/city/rishikesh/2081-02-06","hi":"https://hi.vidhyamitra.com/city/rishikesh/2081-02-06","x-default":"https://vidhyamitra.com/city/rishikesh/2081-02-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T21:11:59.153Z","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":"2026-05-31T21:11:59.153Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T21:11:59.153Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}