{"id":"vidhyamitra:city-day:mathura:2007-12-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/mathura/2007-12-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2007-12-18","date_display":"December 18, 2007 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":2007,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2454452.770833,"kali_year":5109,"ahargana":1865987.2708,"sun":{"sidereal_longitude":241.369,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":342.3617,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":100.9927,"elapsed_within_tithi_degrees":4.9927},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3,"moon_longitude":342.3617,"elapsed_within_degrees":9.0283},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":223.7307},"karana":{"half_tithi_index":16,"name":"Bālava"},"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":2007,"month":12,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2454452.770833,"ahargana":1865987.2708,"kali_year":5109,"ayanamsa_lahiri":23.9642,"grahas":{"sun":{"sidereal_longitude":241.75191200000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":339.555812,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false,"latitude":2.3392},"mars":{"sidereal_longitude":71.20181200000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":true},"mercury":{"sidereal_longitude":241.85891200000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":246.54281200000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"venus":{"sidereal_longitude":200.63751200000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":134.418112,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":311.0146,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":131.0146,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"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":2007,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2454452.770833,"kali_year":5109,"ahargana":1865987.2708,"sun":{"sidereal_longitude":241.369,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":342.3617,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":100.9927,"elapsed_within_tithi_degrees":4.9927},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3,"moon_longitude":342.3617,"elapsed_within_degrees":9.0283},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":223.7307},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.339,"elongation":100.993},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.339,"opposition_distance":79.007}},"eclipse_window_40days":[]},"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"07:04","sunsetLocal":"17:29","solarNoonLocal":"12:17","dayLengthHours":10.407205441655497,"dayLengthDisplay":"10 Hours 24 Mins 26 Secs","nightLengthDisplay":"13 Hours 35 Mins 34 Secs","moonriseLocal":"12:42","moonsetLocal":"00:53","rahuKala":{"name":"Rāhu Kāla","start":"14:53","end":"16:11","startHours":14.877092571278189,"endHours":16.177993251485127,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:40","end":"10:58","startHours":9.67348985045044,"endHours":10.974390530657377,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:17","end":"13:35","startHours":12.275291210864314,"endHours":13.576191891071252,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:30","end":"09:51","startHours":9.500036426422849,"endHours":9.846943274478033,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:30","end":"07:47","startHours":7.505322050105545,"endHours":7.782847528549691,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:37","startHours":11.92838436280913,"endHours":12.622198058919498,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:41","end":"06:23","startHours":5.6840610978158335,"endHours":6.3778747939262,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:12","end":"07:04","startHours":6.204421369898608,"endHours":7.071688490036566,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:42","startHours":14.00982545114023,"endHours":14.703639147250597,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:17","end":"17:41","startHours":17.278893931692064,"endHours":17.678893931692063,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:29","end":"17:55","startHours":17.478893931692063,"endHours":17.912527491761043,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:14","end":"18:59","startHours":17.228893931692063,"endHours":18.978893931692063,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:37","startHours":23.92838436280913,"endHours":24.622198058919498,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:04","end":"08:22","startHours":7.071688490036566,"endHours":8.372589170243502,"quality":"inauspicious"},{"name":"Udveg","start":"08:22","end":"09:40","startHours":8.372589170243502,"endHours":9.67348985045044,"quality":"inauspicious"},{"name":"Chala","start":"09:40","end":"10:58","startHours":9.67348985045044,"endHours":10.974390530657377,"quality":"neutral"},{"name":"Labha","start":"10:58","end":"12:17","startHours":10.974390530657377,"endHours":12.275291210864314,"quality":"auspicious"},{"name":"Amṛta","start":"12:17","end":"13:35","startHours":12.275291210864314,"endHours":13.576191891071252,"quality":"auspicious"},{"name":"Kāla","start":"13:35","end":"14:53","startHours":13.576191891071252,"endHours":14.877092571278189,"quality":"inauspicious"},{"name":"Śubha","start":"14:53","end":"16:11","startHours":14.877092571278189,"endHours":16.177993251485127,"quality":"auspicious"},{"name":"Roga","start":"16:11","end":"17:29","startHours":16.177993251485127,"endHours":17.478893931692063,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:29","end":"19:11","startHours":17.478893931692063,"endHours":19.177993251485127,"quality":"inauspicious"},{"name":"Śubha","start":"19:11","end":"20:53","startHours":19.177993251485127,"endHours":20.87709257127819,"quality":"auspicious"},{"name":"Roga","start":"20:53","end":"22:35","startHours":20.87709257127819,"endHours":22.576191891071254,"quality":"inauspicious"},{"name":"Udveg","start":"22:35","end":"00:17","startHours":22.576191891071254,"endHours":24.275291210864314,"quality":"inauspicious"},{"name":"Chala","start":"00:17","end":"01:58","startHours":24.275291210864314,"endHours":25.974390530657377,"quality":"neutral"},{"name":"Labha","start":"01:58","end":"03:40","startHours":25.974390530657377,"endHours":27.67348985045044,"quality":"auspicious"},{"name":"Amṛta","start":"03:40","end":"05:22","startHours":27.67348985045044,"endHours":29.3725891702435,"quality":"auspicious"},{"name":"Kāla","start":"05:22","end":"07:04","startHours":29.3725891702435,"endHours":31.071688490036564,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:04","end":"08:04","startHours":7.071688490036566,"endHours":8.071688490036566,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:04","end":"09:04","startHours":8.071688490036566,"endHours":9.071688490036566,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:04","end":"10:04","startHours":9.071688490036566,"endHours":10.071688490036566,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:04","end":"11:04","startHours":10.071688490036566,"endHours":11.071688490036566,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:04","end":"12:04","startHours":11.071688490036566,"endHours":12.071688490036566,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:04","end":"13:04","startHours":12.071688490036566,"endHours":13.071688490036566,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:04","end":"14:04","startHours":13.071688490036566,"endHours":14.071688490036566,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:04","end":"15:04","startHours":14.071688490036566,"endHours":15.071688490036566,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:04","end":"16:04","startHours":15.071688490036566,"endHours":16.071688490036564,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:04","end":"17:04","startHours":16.071688490036564,"endHours":17.071688490036564,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:04","end":"18:04","startHours":17.071688490036564,"endHours":18.071688490036564,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:04","end":"19:04","startHours":18.071688490036564,"endHours":19.071688490036564,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:04","end":"20:04","startHours":19.071688490036564,"endHours":20.071688490036564,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:04","end":"21:04","startHours":20.071688490036564,"endHours":21.071688490036564,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:04","end":"22:04","startHours":21.071688490036564,"endHours":22.071688490036564,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:04","end":"23:04","startHours":22.071688490036564,"endHours":23.071688490036564,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:04","end":"00:04","startHours":23.071688490036564,"endHours":24.071688490036564,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:04","end":"01:04","startHours":24.071688490036564,"endHours":25.071688490036564,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:04","end":"02:04","startHours":25.071688490036564,"endHours":26.071688490036564,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:04","end":"03:04","startHours":26.071688490036564,"endHours":27.071688490036564,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:04","end":"04:04","startHours":27.071688490036564,"endHours":28.071688490036564,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:04","end":"05:04","startHours":28.071688490036564,"endHours":29.071688490036564,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:04","end":"06:04","startHours":29.071688490036564,"endHours":30.071688490036564,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:04","end":"07:04","startHours":30.071688490036564,"endHours":31.071688490036564,"planetary_lord":"Saturn"}],"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":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.36712680587983,"eotMinutes":2.787727348141232,"ayanamsa":23.9642}},"calendars":{"vikram_samvat":2064,"vikram_samvatsara":"Śārvarī","saka_samvat":1929,"saka_samvatsara":"Sarvajit","bengali_samvat":1414,"malayalam_era":1183,"nanakshahi_year":538,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Navamī · Vikram 2064 Śārvarī · Śaka 1929 Sarvajit"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5}],"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":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"mathura"},"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, 2007 CE · Mathurā · Vidhyamitra","description":"December 18, 2007 CE for Mathurā: Śukla Navamī, sūryodaya 07:04, sūryāsta 17:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/mathura/2007-12-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/mathura/2007-12-18","sa":"https://sa.vidhyamitra.com/city/mathura/2007-12-18","hi":"https://hi.vidhyamitra.com/city/mathura/2007-12-18","x-default":"https://vidhyamitra.com/city/mathura/2007-12-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T11:41:48.509Z","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":"2026-05-14T11:41:48.509Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T11:41:48.509Z","pillar_versions":{"BOB-History":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}