{"id":"vidhyamitra:city-day:somnath:2012-12-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/somnath/2012-12-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2012-12-18","date_display":"December 18, 2012 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":2012,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456279.770833,"kali_year":5114,"ahargana":1867814.2708,"sun":{"sidereal_longitude":242.094,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":303.1918,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":61.0978,"elapsed_within_tithi_degrees":1.0978},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3,"moon_longitude":303.1918,"elapsed_within_degrees":9.8585},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":185.2858},"karana":{"half_tithi_index":10,"name":"Kaulava"},"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":2012,"month":12,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456279.770833,"ahargana":1867814.2708,"kali_year":5114,"ayanamsa_lahiri":24.0341,"grahas":{"sun":{"sidereal_longitude":242.48280699999998,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":306.116707,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false,"latitude":4.4993},"mars":{"sidereal_longitude":269.594607,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":225.370907,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":44.88500699999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":218.10990700000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":194.042007,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":214.2114,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":34.2114,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":2012,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456279.770833,"kali_year":5114,"ahargana":1867814.2708,"sun":{"sidereal_longitude":242.094,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":303.1918,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":61.0978,"elapsed_within_tithi_degrees":1.0978},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3,"moon_longitude":303.1918,"elapsed_within_degrees":9.8585},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":185.2858},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.499,"elongation":61.098},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.499,"opposition_distance":118.902}},"eclipse_window_40days":[]},"city":{"slug":"somnath","name":"Somnāth","lat":20.888,"lon":70.4017,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"somnath","name":"Somnāth","lat":20.888,"lon":70.4017,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tirtha"},"sunriseLocal":"07:20","sunsetLocal":"18:12","solarNoonLocal":"12:46","dayLengthHours":10.864307457239544,"dayLengthDisplay":"10 Hours 51 Mins 52 Secs","nightLengthDisplay":"13 Hours 08 Mins 08 Secs","moonriseLocal":"11:15","moonsetLocal":"22:45","rahuKala":{"name":"Rāhu Kāla","start":"15:29","end":"16:50","startHours":15.476168075174197,"endHours":16.834206507329142,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:03","end":"11:24","startHours":10.044014346554427,"endHours":11.402052778709368,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:46","end":"14:07","startHours":12.760091210864312,"endHours":14.118129643019255,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:52","end":"10:14","startHours":9.862942555600434,"endHours":10.225086137508418,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:47","end":"08:04","startHours":7.780616959629521,"endHours":8.07033182515591,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:24","end":"13:07","startHours":12.397947628956327,"endHours":13.122234792772296,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:53","end":"06:36","startHours":5.879363154612601,"endHours":6.603650318428571,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:25","end":"07:20","startHours":6.4225785274745775,"endHours":7.32793748224454,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:34","end":"15:18","startHours":14.570809120404235,"endHours":15.295096284220204,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:00","end":"18:24","startHours":17.992244939484085,"endHours":18.392244939484083,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:12","end":"18:39","startHours":18.192244939484084,"endHours":18.644924416869063,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:57","end":"19:42","startHours":17.942244939484084,"endHours":19.692244939484084,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:24","end":"01:07","startHours":24.397947628956324,"endHours":25.122234792772296,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:20","end":"08:41","startHours":7.32793748224454,"endHours":8.685975914399483,"quality":"inauspicious"},{"name":"Udveg","start":"08:41","end":"10:03","startHours":8.685975914399483,"endHours":10.044014346554427,"quality":"inauspicious"},{"name":"Chala","start":"10:03","end":"11:24","startHours":10.044014346554427,"endHours":11.402052778709368,"quality":"neutral"},{"name":"Labha","start":"11:24","end":"12:46","startHours":11.402052778709368,"endHours":12.760091210864312,"quality":"auspicious"},{"name":"Amṛta","start":"12:46","end":"14:07","startHours":12.760091210864312,"endHours":14.118129643019255,"quality":"auspicious"},{"name":"Kāla","start":"14:07","end":"15:29","startHours":14.118129643019255,"endHours":15.476168075174197,"quality":"inauspicious"},{"name":"Śubha","start":"15:29","end":"16:50","startHours":15.476168075174197,"endHours":16.834206507329142,"quality":"auspicious"},{"name":"Roga","start":"16:50","end":"18:12","startHours":16.834206507329142,"endHours":18.192244939484084,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:12","end":"19:50","startHours":18.192244939484084,"endHours":19.834206507329142,"quality":"inauspicious"},{"name":"Śubha","start":"19:50","end":"21:29","startHours":19.834206507329142,"endHours":21.476168075174197,"quality":"auspicious"},{"name":"Roga","start":"21:29","end":"23:07","startHours":21.476168075174197,"endHours":23.118129643019255,"quality":"inauspicious"},{"name":"Udveg","start":"23:07","end":"00:46","startHours":23.118129643019255,"endHours":24.76009121086431,"quality":"inauspicious"},{"name":"Chala","start":"00:46","end":"02:24","startHours":24.76009121086431,"endHours":26.40205277870937,"quality":"neutral"},{"name":"Labha","start":"02:24","end":"04:03","startHours":26.40205277870937,"endHours":28.044014346554427,"quality":"auspicious"},{"name":"Amṛta","start":"04:03","end":"05:41","startHours":28.044014346554427,"endHours":29.685975914399485,"quality":"auspicious"},{"name":"Kāla","start":"05:41","end":"07:20","startHours":29.685975914399485,"endHours":31.32793748224454,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:20","end":"08:20","startHours":7.32793748224454,"endHours":8.32793748224454,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:20","end":"09:20","startHours":8.32793748224454,"endHours":9.32793748224454,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:20","end":"10:20","startHours":9.32793748224454,"endHours":10.32793748224454,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:20","end":"11:20","startHours":10.32793748224454,"endHours":11.32793748224454,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:20","end":"12:20","startHours":11.32793748224454,"endHours":12.32793748224454,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:20","end":"13:20","startHours":12.32793748224454,"endHours":13.32793748224454,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:20","end":"14:20","startHours":13.32793748224454,"endHours":14.32793748224454,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:20","end":"15:20","startHours":14.32793748224454,"endHours":15.32793748224454,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:20","end":"16:20","startHours":15.32793748224454,"endHours":16.32793748224454,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:20","end":"17:20","startHours":16.32793748224454,"endHours":17.32793748224454,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:20","end":"18:20","startHours":17.32793748224454,"endHours":18.32793748224454,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:20","end":"19:20","startHours":18.32793748224454,"endHours":19.32793748224454,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:20","end":"20:20","startHours":19.32793748224454,"endHours":20.32793748224454,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:20","end":"21:20","startHours":20.32793748224454,"endHours":21.32793748224454,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:20","end":"22:20","startHours":21.32793748224454,"endHours":22.32793748224454,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:20","end":"23:20","startHours":22.32793748224454,"endHours":23.32793748224454,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:20","end":"00:20","startHours":23.32793748224454,"endHours":24.32793748224454,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:20","end":"01:20","startHours":24.32793748224454,"endHours":25.32793748224454,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:20","end":"02:20","startHours":25.32793748224454,"endHours":26.32793748224454,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:20","end":"03:20","startHours":26.32793748224454,"endHours":27.32793748224454,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:20","end":"04:20","startHours":27.32793748224454,"endHours":28.32793748224454,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:20","end":"05:20","startHours":28.32793748224454,"endHours":29.32793748224454,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:20","end":"06:20","startHours":29.32793748224454,"endHours":30.32793748224454,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:20","end":"07:20","startHours":30.32793748224454,"endHours":31.32793748224454,"planetary_lord":"Saturn"}],"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":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.390627465866242,"eotMinutes":2.787727348141232,"ayanamsa":24.0341}},"calendars":{"vikram_samvat":2069,"vikram_samvatsara":"Viśvāvasu","saka_samvat":1934,"saka_samvatsara":"Nandana","bengali_samvat":1419,"malayalam_era":1188,"nanakshahi_year":543,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Ṣaṣṭhī · Vikram 2069 Viśvāvasu · Śaka 1934 Nandana"},"festivals":[{"id":"skanda-shashthi","name":"Skanda Ṣaṣṭhī","name_sanskrit":"स्कन्द षष्ठी","tradition":"Shaiva","associated_deity":"Kārttikeya / Skanda / Murugan","significance":"Kārttikeya's victory over Tāraka. Important Shaiva day in Tamil tradition.","vrata":true,"detection":{"tithi_number":6,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":3}],"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 Skanda Ṣaṣṭhī is not live yet; Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"somnath"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 18, 2012 CE · Somnāth · Vidhyamitra","description":"December 18, 2012 CE for Somnāth: Śukla Ṣaṣṭhī, sūryodaya 07:20, sūryāsta 18:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/somnath/2012-12-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/somnath/2012-12-18","sa":"https://sa.vidhyamitra.com/city/somnath/2012-12-18","hi":"https://hi.vidhyamitra.com/city/somnath/2012-12-18","x-default":"https://vidhyamitra.com/city/somnath/2012-12-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-23T05:31:30.543Z","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":"2026-09-23T05:31:30.543Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-23T05:31:30.543Z","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"}}}