{"id":"vidhyamitra:city-day:erode:2026-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2026-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2026-02-01","date_display":"February 1, 2026 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":2026,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461072.770833,"kali_year":5127,"ahargana":1872607.2708,"sun":{"sidereal_longitude":287.9148,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":97.891,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":169.9763,"elapsed_within_tithi_degrees":1.9763},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":97.891,"elapsed_within_degrees":4.5577},"yoga":{"number":2,"name":"Prīti","sum_longitude":25.8058},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2026,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461072.770833,"ahargana":1872607.2708,"kali_year":5127,"ayanamsa_lahiri":24.2174,"grahas":{"sun":{"sidereal_longitude":287.960279,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":96.22237899999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false,"latitude":3.0306},"mars":{"sidereal_longitude":282.14757899999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":294.982879,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":82.98417899999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":true},"venus":{"sidereal_longitude":293.665979,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":334.51587900000004,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":320.2552,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":140.2552,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva 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":2026,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461072.770833,"kali_year":5127,"ahargana":1872607.2708,"sun":{"sidereal_longitude":287.9148,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":97.891,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":169.9763,"elapsed_within_tithi_degrees":1.9763},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":97.891,"elapsed_within_degrees":4.5577},"yoga":{"number":2,"name":"Prīti","sum_longitude":25.8058},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.031,"elongation":169.976},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.031,"opposition_distance":10.024}},"eclipse_window_40days":[]},"city":{"slug":"erode","name":"Erode, Tamil Nadu","lat":11.341,"lon":77.7172,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"erode","name":"Erode, Tamil Nadu","lat":11.341,"lon":77.7172,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"sunriseLocal":"06:43","sunsetLocal":"18:22","solarNoonLocal":"12:33","dayLengthHours":11.64580983370355,"dayLengthDisplay":"11 Hours 38 Mins 45 Secs","nightLengthDisplay":"12 Hours 21 Mins 15 Secs","moonriseLocal":"17:27","moonsetLocal":"06:05","rahuKala":{"name":"Rāhu Kāla","start":"16:55","end":"18:22","startHours":16.91418782292876,"endHours":18.369914052141702,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:33","end":"14:00","startHours":12.547009135289926,"endHours":14.002735364502872,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:28","end":"16:55","startHours":15.458461593715814,"endHours":16.91418782292876,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:26","end":"09:50","startHours":9.441459846302314,"endHours":9.829653507425764,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:13","end":"07:31","startHours":7.209346294842466,"endHours":7.519901223741227,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:10","end":"12:56","startHours":12.158815474166474,"endHours":12.935202796413378,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:10","end":"05:57","startHours":5.171329573944345,"endHours":5.947716896191248,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:45","end":"06:43","startHours":5.753620065629523,"endHours":6.724104218438152,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:29","end":"15:16","startHours":14.487977440907185,"endHours":15.264364763154088,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:10","end":"18:34","startHours":18.169914052141703,"endHours":18.5699140521417,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:22","end":"18:51","startHours":18.369914052141702,"endHours":18.855156128546017,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:07","end":"19:52","startHours":18.119914052141702,"endHours":19.869914052141702,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:10","end":"00:56","startHours":24.158815474166474,"endHours":24.935202796413378,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:43","end":"08:11","startHours":6.724104218438152,"endHours":8.179830447651096,"quality":"inauspicious"},{"name":"Chala","start":"08:11","end":"09:38","startHours":8.179830447651096,"endHours":9.63555667686404,"quality":"neutral"},{"name":"Labha","start":"09:38","end":"11:05","startHours":9.63555667686404,"endHours":11.091282906076984,"quality":"auspicious"},{"name":"Amṛta","start":"11:05","end":"12:33","startHours":11.091282906076984,"endHours":12.547009135289926,"quality":"auspicious"},{"name":"Kāla","start":"12:33","end":"14:00","startHours":12.547009135289926,"endHours":14.002735364502872,"quality":"inauspicious"},{"name":"Śubha","start":"14:00","end":"15:28","startHours":14.002735364502872,"endHours":15.458461593715814,"quality":"auspicious"},{"name":"Roga","start":"15:28","end":"16:55","startHours":15.458461593715814,"endHours":16.91418782292876,"quality":"inauspicious"},{"name":"Udveg","start":"16:55","end":"18:22","startHours":16.91418782292876,"endHours":18.369914052141702,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:22","end":"19:55","startHours":18.369914052141702,"endHours":19.91418782292876,"quality":"auspicious"},{"name":"Roga","start":"19:55","end":"21:28","startHours":19.91418782292876,"endHours":21.458461593715814,"quality":"inauspicious"},{"name":"Udveg","start":"21:28","end":"23:00","startHours":21.458461593715814,"endHours":23.002735364502872,"quality":"inauspicious"},{"name":"Chala","start":"23:00","end":"00:33","startHours":23.002735364502872,"endHours":24.547009135289926,"quality":"neutral"},{"name":"Labha","start":"00:33","end":"02:05","startHours":24.547009135289926,"endHours":26.091282906076984,"quality":"auspicious"},{"name":"Amṛta","start":"02:05","end":"03:38","startHours":26.091282906076984,"endHours":27.63555667686404,"quality":"auspicious"},{"name":"Kāla","start":"03:38","end":"05:11","startHours":27.63555667686404,"endHours":29.179830447651096,"quality":"inauspicious"},{"name":"Śubha","start":"05:11","end":"06:43","startHours":29.179830447651096,"endHours":30.72410421843815,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:43","end":"07:43","startHours":6.724104218438152,"endHours":7.724104218438152,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:43","end":"08:43","startHours":7.724104218438152,"endHours":8.724104218438152,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:43","end":"09:43","startHours":8.724104218438152,"endHours":9.724104218438152,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:43","end":"10:43","startHours":9.724104218438152,"endHours":10.724104218438152,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:43","end":"11:43","startHours":10.724104218438152,"endHours":11.724104218438152,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:43","end":"12:43","startHours":11.724104218438152,"endHours":12.724104218438152,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:43","end":"13:43","startHours":12.724104218438152,"endHours":13.724104218438152,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:43","end":"14:43","startHours":13.724104218438152,"endHours":14.724104218438152,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:43","end":"15:43","startHours":14.724104218438152,"endHours":15.724104218438152,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:43","end":"16:43","startHours":15.724104218438152,"endHours":16.72410421843815,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:43","end":"17:43","startHours":16.72410421843815,"endHours":17.72410421843815,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:43","end":"18:43","startHours":17.72410421843815,"endHours":18.72410421843815,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:43","end":"19:43","startHours":18.72410421843815,"endHours":19.72410421843815,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:43","end":"20:43","startHours":19.72410421843815,"endHours":20.72410421843815,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:43","end":"21:43","startHours":20.72410421843815,"endHours":21.72410421843815,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:43","end":"22:43","startHours":21.72410421843815,"endHours":22.72410421843815,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:43","end":"23:43","startHours":22.72410421843815,"endHours":23.72410421843815,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:43","end":"00:43","startHours":23.72410421843815,"endHours":24.72410421843815,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:43","end":"01:43","startHours":24.72410421843815,"endHours":25.72410421843815,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:43","end":"02:43","startHours":25.72410421843815,"endHours":26.72410421843815,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:43","end":"03:43","startHours":26.72410421843815,"endHours":27.72410421843815,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:43","end":"04:43","startHours":27.72410421843815,"endHours":28.72410421843815,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:43","end":"05:43","startHours":28.72410421843815,"endHours":29.72410421843815,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:43","end":"06:43","startHours":29.72410421843815,"endHours":30.72410421843815,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-17.14231267281524,"eotMinutes":-13.689348117395623,"ayanamsa":24.2174}},"calendars":{"vikram_samvat":2083,"vikram_samvatsara":"Siddhārthī","saka_samvat":1948,"saka_samvatsara":"Parābhava","bengali_samvat":1433,"malayalam_era":1202,"nanakshahi_year":557,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Pūrṇimā · Vikram 2083 Siddhārthī · Śaka 1948 Parābhava"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"magha-purnima","name":"Māghī Pūrṇimā","name_sanskrit":"माघी पूर्णिमा","tradition":"Pan-Hindu","significance":"Sacred snāna at Prayāga; Māgha-snāna culmination.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"erode"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 1, 2026 CE · Erode, Tamil Nadu · Vidhyamitra","description":"February 1, 2026 CE for Erode, Tamil Nadu: Śukla Pūrṇimā, sūryodaya 06:43, sūryāsta 18:22.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2026-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2026-02-01","sa":"https://sa.vidhyamitra.com/city/erode/2026-02-01","hi":"https://hi.vidhyamitra.com/city/erode/2026-02-01","x-default":"https://vidhyamitra.com/city/erode/2026-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T19:44:19.127Z","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":"2026-05-14T19:44:19.127Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T19:44:19.127Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}