{"id":"vidhyamitra:city-day:chennai:2026-09-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chennai/2026-09-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2026-09-10","date_display":"September 10, 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2026,"month":9,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461293.770833,"kali_year":5128,"ahargana":1872828.2708,"sun":{"sidereal_longitude":142.3611,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":129.951,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":347.5899,"elapsed_within_tithi_degrees":11.5899},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":129.951,"elapsed_within_degrees":9.951},"yoga":{"number":21,"name":"Siddha","sum_longitude":272.3121},"karana":{"half_tithi_index":57,"name":"Śakuni"},"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":2026,"month":9,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461293.770833,"ahargana":1872828.2708,"kali_year":5128,"ayanamsa_lahiri":24.2259,"grahas":{"sun":{"sidereal_longitude":143.139636,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":128.97983599999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false,"latitude":-0.1103},"mars":{"sidereal_longitude":84.50543600000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":154.24403600000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":111.13563599999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":185.28433599999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":348.939236,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":308.5455,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":128.5455,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2026,"month":9,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461293.770833,"kali_year":5128,"ahargana":1872828.2708,"sun":{"sidereal_longitude":142.3611,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":129.951,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":347.5899,"elapsed_within_tithi_degrees":11.5899},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":129.951,"elapsed_within_degrees":9.951},"yoga":{"number":21,"name":"Siddha","sum_longitude":272.3121},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.11,"elongation":12.41},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.11,"opposition_distance":167.59}},"eclipse_window_40days":[{"offset_days":-13,"type":"lunar","occurs":true,"moon_latitude":-0.114,"opposition_distance":2.035},{"offset_days":1,"type":"solar","occurs":true,"moon_latitude":-1.193,"elongation":0.557}]},"city":{"slug":"chennai","name":"Chennai, Tamil Nadu","lat":13.0827,"lon":80.2707,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"mega","elevation_m":6},"tier2":{"city":{"slug":"chennai","name":"Chennai, Tamil Nadu","lat":13.0827,"lon":80.2707,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"mega","elevation_m":6},"sunriseLocal":"05:57","sunsetLocal":"18:13","solarNoonLocal":"12:05","dayLengthHours":12.269545981843157,"dayLengthDisplay":"12 Hours 16 Mins 10 Secs","nightLengthDisplay":"11 Hours 43 Mins 50 Secs","moonriseLocal":"04:56","moonsetLocal":"17:21","rahuKala":{"name":"Rāhu Kāla","start":"13:37","end":"15:09","startHours":13.621531618102958,"endHours":15.155224865833352,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:57","end":"07:29","startHours":5.953065379450985,"endHours":7.48675862718138,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:01","end":"10:33","startHours":9.020451874911775,"endHours":10.554145122642169,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:49","end":"09:13","startHours":8.815959441881056,"endHours":9.224944307942494,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:28","end":"06:47","startHours":6.464296462027783,"endHours":6.791484354876934,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:41","end":"12:30","startHours":11.678853504311125,"endHours":12.496823236434,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:19","end":"05:08","startHours":4.317125915205231,"endHours":5.135095647328107,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:56","end":"05:57","startHours":4.930603214297388,"endHours":5.953065379450985,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:57","startHours":14.132762700679757,"endHours":14.950732432802635,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:01","end":"18:25","startHours":18.022611361294143,"endHours":18.42261136129414,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:13","end":"18:44","startHours":18.222611361294142,"endHours":18.73384244387094,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:58","end":"19:43","startHours":17.972611361294142,"endHours":19.722611361294142,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:41","end":"00:30","startHours":23.678853504311125,"endHours":24.496823236434,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:57","end":"07:29","startHours":5.953065379450985,"endHours":7.48675862718138,"quality":"auspicious"},{"name":"Roga","start":"07:29","end":"09:01","startHours":7.48675862718138,"endHours":9.020451874911775,"quality":"inauspicious"},{"name":"Udveg","start":"09:01","end":"10:33","startHours":9.020451874911775,"endHours":10.554145122642169,"quality":"inauspicious"},{"name":"Chala","start":"10:33","end":"12:05","startHours":10.554145122642169,"endHours":12.087838370372562,"quality":"neutral"},{"name":"Labha","start":"12:05","end":"13:37","startHours":12.087838370372562,"endHours":13.621531618102958,"quality":"auspicious"},{"name":"Amṛta","start":"13:37","end":"15:09","startHours":13.621531618102958,"endHours":15.155224865833352,"quality":"auspicious"},{"name":"Kāla","start":"15:09","end":"16:41","startHours":15.155224865833352,"endHours":16.688918113563748,"quality":"inauspicious"},{"name":"Śubha","start":"16:41","end":"18:13","startHours":16.688918113563748,"endHours":18.222611361294142,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:13","end":"19:41","startHours":18.222611361294142,"endHours":19.688918113563748,"quality":"auspicious"},{"name":"Kāla","start":"19:41","end":"21:09","startHours":19.688918113563748,"endHours":21.155224865833354,"quality":"inauspicious"},{"name":"Śubha","start":"21:09","end":"22:37","startHours":21.155224865833354,"endHours":22.621531618102956,"quality":"auspicious"},{"name":"Roga","start":"22:37","end":"00:05","startHours":22.621531618102956,"endHours":24.087838370372562,"quality":"inauspicious"},{"name":"Udveg","start":"00:05","end":"01:33","startHours":24.087838370372562,"endHours":25.55414512264217,"quality":"inauspicious"},{"name":"Chala","start":"01:33","end":"03:01","startHours":25.55414512264217,"endHours":27.020451874911775,"quality":"neutral"},{"name":"Labha","start":"03:01","end":"04:29","startHours":27.020451874911775,"endHours":28.48675862718138,"quality":"auspicious"},{"name":"Amṛta","start":"04:29","end":"05:57","startHours":28.48675862718138,"endHours":29.953065379450983,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:57","end":"06:57","startHours":5.953065379450985,"endHours":6.953065379450985,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:57","end":"07:57","startHours":6.953065379450985,"endHours":7.953065379450985,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:57","end":"08:57","startHours":7.953065379450985,"endHours":8.953065379450985,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:57","end":"09:57","startHours":8.953065379450985,"endHours":9.953065379450985,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:57","end":"10:57","startHours":9.953065379450985,"endHours":10.953065379450985,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:57","end":"11:57","startHours":10.953065379450985,"endHours":11.953065379450985,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:57","end":"12:57","startHours":11.953065379450985,"endHours":12.953065379450985,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:57","end":"13:57","startHours":12.953065379450985,"endHours":13.953065379450985,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:57","end":"14:57","startHours":13.953065379450985,"endHours":14.953065379450985,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:57","end":"15:57","startHours":14.953065379450985,"endHours":15.953065379450985,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:57","end":"16:57","startHours":15.953065379450985,"endHours":16.953065379450983,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:57","end":"17:57","startHours":16.953065379450983,"endHours":17.953065379450983,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:57","end":"18:57","startHours":17.953065379450983,"endHours":18.953065379450983,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:57","end":"19:57","startHours":18.953065379450983,"endHours":19.953065379450983,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:57","end":"20:57","startHours":19.953065379450983,"endHours":20.953065379450983,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:57","end":"21:57","startHours":20.953065379450983,"endHours":21.953065379450983,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:57","end":"22:57","startHours":21.953065379450983,"endHours":22.953065379450983,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:57","end":"23:57","startHours":22.953065379450983,"endHours":23.953065379450983,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:57","end":"00:57","startHours":23.953065379450983,"endHours":24.953065379450983,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:57","end":"01:57","startHours":24.953065379450983,"endHours":25.953065379450983,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:57","end":"02:57","startHours":25.953065379450983,"endHours":26.953065379450983,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:57","end":"03:57","startHours":26.953065379450983,"endHours":27.953065379450983,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:57","end":"04:57","startHours":27.953065379450983,"endHours":28.953065379450983,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:57","end":"05:57","startHours":28.953065379450983,"endHours":29.953065379450983,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"West","rahuVasa":"North-West","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":4.9908189053199745,"eotMinutes":3.6468977776461458,"ayanamsa":24.2259}},"calendars":{"vikram_samvat":2083,"vikram_samvatsara":"Siddhārthī","saka_samvat":1948,"saka_samvatsara":"Parābhava","bengali_samvat":1433,"malayalam_era":1202,"nanakshahi_year":557,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Caturdaśī · Vikram 2083 Siddhārthī · Śaka 1948 Parābhava"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":"Dedicated festival walk for Māsika Śivarātri is not live yet; Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"chennai"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga September 10, 2026 CE · Chennai, Tamil Nadu · Vidhyamitra","description":"September 10, 2026 CE for Chennai, Tamil Nadu: Kṛṣṇa Caturdaśī, sūryodaya 05:57, sūryāsta 18:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chennai/2026-09-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chennai/2026-09-10","sa":"https://sa.vidhyamitra.com/city/chennai/2026-09-10","hi":"https://hi.vidhyamitra.com/city/chennai/2026-09-10","x-default":"https://vidhyamitra.com/city/chennai/2026-09-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-09T02:13:38.462Z","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":"2026-09-09T02:13:38.462Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-09T02:13:38.462Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}