{"id":"vidhyamitra:city-day:chennai:2011-10-25:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chennai/2011-10-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-10-25","date_display":"October 25, 2011 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":2011,"month":10,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455859.770833,"kali_year":5113,"ahargana":1867394.2708,"sun":{"sidereal_longitude":186.5167,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":162.3418,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":335.8252,"elapsed_within_tithi_degrees":11.8252},"nakshatra":{"number":13,"name":"Hasta","pada":1,"moon_longitude":162.3418,"elapsed_within_degrees":2.3418},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":348.8585},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2011,"month":10,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455859.770833,"ahargana":1867394.2708,"kali_year":5113,"ayanamsa_lahiri":24.018,"grahas":{"sun":{"sidereal_longitude":187.25615399999992,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":161.65295400000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false,"latitude":-4.328},"mars":{"sidereal_longitude":116.75235399999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":203.48215400000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":11.682053999999994,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":205.475954,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":177.25655400000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":236.465,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":56.465,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":"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":2011,"month":10,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455859.770833,"kali_year":5113,"ahargana":1867394.2708,"sun":{"sidereal_longitude":186.5167,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":162.3418,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":335.8252,"elapsed_within_tithi_degrees":11.8252},"nakshatra":{"number":13,"name":"Hasta","pada":1,"moon_longitude":162.3418,"elapsed_within_degrees":2.3418},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":348.8585},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.328,"elongation":24.175},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.328,"opposition_distance":155.825}},"eclipse_window_40days":[]},"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":"06:00","sunsetLocal":"17:45","solarNoonLocal":"11:53","dayLengthHours":11.74184972003303,"dayLengthDisplay":"11 Hours 44 Mins 31 Secs","nightLengthDisplay":"12 Hours 15 Mins 29 Secs","moonriseLocal":"04:10","moonsetLocal":"16:11","rahuKala":{"name":"Rāhu Kāla","start":"14:49","end":"16:17","startHours":14.813501445558824,"endHours":16.281232660562953,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:57","end":"10:25","startHours":8.942576585542309,"endHours":10.410307800546438,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:53","end":"13:21","startHours":11.878039015550566,"endHours":13.345770230554695,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:45","end":"09:08","startHours":8.746879090208424,"endHours":9.138274080876192,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:30","end":"06:49","startHours":6.496357893868761,"endHours":6.809473886402975,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:29","end":"12:16","startHours":11.486644024882798,"endHours":12.269434006218335,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:26","end":"05:13","startHours":4.441534192862981,"endHours":5.224324174198515,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:02","end":"06:00","startHours":5.028626678864632,"endHours":6.007114155534051,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:50","end":"14:37","startHours":13.835013968889404,"endHours":14.617803950224939,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:33","end":"17:57","startHours":17.548963875567082,"endHours":17.94896387556708,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:45","end":"18:14","startHours":17.74896387556708,"endHours":18.238207613901793,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:30","end":"19:15","startHours":17.49896387556708,"endHours":19.24896387556708,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:29","end":"00:16","startHours":23.4866440248828,"endHours":24.269434006218333,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:00","end":"07:28","startHours":6.007114155534051,"endHours":7.47484537053818,"quality":"inauspicious"},{"name":"Udveg","start":"07:28","end":"08:57","startHours":7.47484537053818,"endHours":8.942576585542309,"quality":"inauspicious"},{"name":"Chala","start":"08:57","end":"10:25","startHours":8.942576585542309,"endHours":10.410307800546438,"quality":"neutral"},{"name":"Labha","start":"10:25","end":"11:53","startHours":10.410307800546438,"endHours":11.878039015550566,"quality":"auspicious"},{"name":"Amṛta","start":"11:53","end":"13:21","startHours":11.878039015550566,"endHours":13.345770230554695,"quality":"auspicious"},{"name":"Kāla","start":"13:21","end":"14:49","startHours":13.345770230554695,"endHours":14.813501445558824,"quality":"inauspicious"},{"name":"Śubha","start":"14:49","end":"16:17","startHours":14.813501445558824,"endHours":16.281232660562953,"quality":"auspicious"},{"name":"Roga","start":"16:17","end":"17:45","startHours":16.281232660562953,"endHours":17.74896387556708,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:45","end":"19:17","startHours":17.74896387556708,"endHours":19.281232660562953,"quality":"inauspicious"},{"name":"Śubha","start":"19:17","end":"20:49","startHours":19.281232660562953,"endHours":20.813501445558824,"quality":"auspicious"},{"name":"Roga","start":"20:49","end":"22:21","startHours":20.813501445558824,"endHours":22.345770230554695,"quality":"inauspicious"},{"name":"Udveg","start":"22:21","end":"23:53","startHours":22.345770230554695,"endHours":23.878039015550566,"quality":"inauspicious"},{"name":"Chala","start":"23:53","end":"01:25","startHours":23.878039015550566,"endHours":25.410307800546438,"quality":"neutral"},{"name":"Labha","start":"01:25","end":"02:57","startHours":25.410307800546438,"endHours":26.94257658554231,"quality":"auspicious"},{"name":"Amṛta","start":"02:57","end":"04:28","startHours":26.94257658554231,"endHours":28.47484537053818,"quality":"auspicious"},{"name":"Kāla","start":"04:28","end":"06:00","startHours":28.47484537053818,"endHours":30.00711415553405,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:00","end":"07:00","startHours":6.007114155534051,"endHours":7.007114155534051,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:00","end":"08:00","startHours":7.007114155534051,"endHours":8.007114155534051,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:00","end":"09:00","startHours":8.007114155534051,"endHours":9.007114155534051,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:00","end":"10:00","startHours":9.007114155534051,"endHours":10.007114155534051,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:00","end":"11:00","startHours":10.007114155534051,"endHours":11.007114155534051,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:00","end":"12:00","startHours":11.007114155534051,"endHours":12.007114155534051,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:00","end":"13:00","startHours":12.007114155534051,"endHours":13.007114155534051,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:00","end":"14:00","startHours":13.007114155534051,"endHours":14.007114155534051,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:00","end":"15:00","startHours":14.007114155534051,"endHours":15.007114155534051,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:00","end":"16:00","startHours":15.007114155534051,"endHours":16.00711415553405,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:00","end":"17:00","startHours":16.00711415553405,"endHours":17.00711415553405,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:00","end":"18:00","startHours":17.00711415553405,"endHours":18.00711415553405,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:00","end":"19:00","startHours":18.00711415553405,"endHours":19.00711415553405,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:00","end":"20:00","startHours":19.00711415553405,"endHours":20.00711415553405,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:00","end":"21:00","startHours":20.00711415553405,"endHours":21.00711415553405,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:00","end":"22:00","startHours":21.00711415553405,"endHours":22.00711415553405,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:00","end":"23:00","startHours":22.00711415553405,"endHours":23.00711415553405,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:00","end":"00:00","startHours":23.00711415553405,"endHours":24.00711415553405,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:00","end":"01:00","startHours":24.00711415553405,"endHours":25.00711415553405,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:00","end":"02:00","startHours":25.00711415553405,"endHours":26.00711415553405,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:00","end":"03:00","startHours":26.00711415553405,"endHours":27.00711415553405,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:00","end":"04:00","startHours":27.00711415553405,"endHours":28.00711415553405,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:00","end":"05:00","startHours":28.00711415553405,"endHours":29.00711415553405,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:00","end":"06:00","startHours":29.00711415553405,"endHours":30.00711415553405,"planetary_lord":"Saturn"}],"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":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"North","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-11.915933336518993,"eotMinutes":16.234859066965946,"ayanamsa":24.018}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Trayodaśī · Vikram 2068 Krodhi · Śaka 1933 Khara"},"festivals":[{"id":"dhanteras","name":"Dhanteras (Dhanvantari Jayantī)","name_sanskrit":"धनतेरस / धन्वन्तरि जयन्ती","tradition":"Pan-Hindu","associated_deity":"Dhanvantari (Āyurveda-deva, avatāra of Viṣṇu)","significance":"Birth of Dhanvantari from samudra-mathana with amṛta-kalaśa. Day 1 of Diwali.","vrata":true,"detection":{"tithi_number":28,"tithi_paksha":"Kṛṣṇa","lunar_month":"Kārtika"},"precedence":2,"sources":["Bhāgavata 8.8.32-34"]},{"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":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Dedicated festival walk for Dhanteras (Dhanvantari Jayantī) · Pradoṣa Vrata is not live yet; Maṅgalavāra (Tuesday) — 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 October 25, 2011 CE · Chennai, Tamil Nadu · Vidhyamitra","description":"October 25, 2011 CE for Chennai, Tamil Nadu: Kṛṣṇa Trayodaśī, sūryodaya 06:00, sūryāsta 17:45.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chennai/2011-10-25","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chennai/2011-10-25","sa":"https://sa.vidhyamitra.com/city/chennai/2011-10-25","hi":"https://hi.vidhyamitra.com/city/chennai/2011-10-25","x-default":"https://vidhyamitra.com/city/chennai/2011-10-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-06T09:19:01.699Z","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":"2026-09-06T09:19:01.699Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-06T09:19:01.699Z","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"}}}