{"id":"vidhyamitra:city-day:vellore:2001-01-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vellore/2001-01-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2001-01-18","date_display":"January 18, 2001 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":2001,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451927.770833,"kali_year":5102,"ahargana":1863462.2708,"sun":{"sidereal_longitude":274.056,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":198.9848,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":284.9288,"elapsed_within_tithi_degrees":8.9288},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":198.9848,"elapsed_within_degrees":12.3182},"yoga":{"number":9,"name":"Śūla","sum_longitude":113.0408},"karana":{"half_tithi_index":47,"name":"Gara"},"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":2001,"month":1,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2451927.770833,"ahargana":1863462.2708,"kali_year":5102,"ayanamsa_lahiri":23.8676,"grahas":{"sun":{"sidereal_longitude":274.14438599999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":202.24478599999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false,"latitude":4.1044},"mars":{"sidereal_longitude":200.87088600000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":288.5348859999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":37.37968599999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":321.213786,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":30.145186000000024,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":84.8013,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":264.8013,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":2001,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451927.770833,"kali_year":5102,"ahargana":1863462.2708,"sun":{"sidereal_longitude":274.056,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":198.9848,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":284.9288,"elapsed_within_tithi_degrees":8.9288},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":198.9848,"elapsed_within_degrees":12.3182},"yoga":{"number":9,"name":"Śūla","sum_longitude":113.0408},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.104,"elongation":75.071},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.104,"opposition_distance":104.929}},"eclipse_window_40days":[{"offset_days":-8,"type":"lunar","occurs":true,"moon_latitude":0.182,"opposition_distance":1.705}]},"city":{"slug":"vellore","name":"Vellore, Tamil Nadu","lat":12.9165,"lon":79.1325,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"vellore","name":"Vellore, Tamil Nadu","lat":12.9165,"lon":79.1325,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"sunriseLocal":"06:40","sunsetLocal":"18:08","solarNoonLocal":"12:24","dayLengthHours":11.464232591772873,"dayLengthDisplay":"11 Hours 27 Mins 51 Secs","nightLengthDisplay":"12 Hours 32 Mins 09 Secs","moonriseLocal":"01:49","moonsetLocal":"13:23","rahuKala":{"name":"Rāhu Kāla","start":"13:50","end":"15:16","startHours":13.830016233666438,"endHours":15.263045307638048,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:40","end":"08:06","startHours":6.6648708638083916,"endHours":8.097899937780001,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:32","end":"10:58","startHours":9.53092901175161,"endHours":10.96395808572322,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:20","end":"09:43","startHours":9.339858468555395,"endHours":9.721999554947825,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:09","end":"07:27","startHours":7.142547221798928,"endHours":7.448260090912871,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:01","end":"12:47","startHours":12.0148460733024,"endHours":12.779128246087259,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:08","end":"05:54","startHours":5.136306518238675,"endHours":5.9005886910235334,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:43","end":"06:40","startHours":5.7095181478273185,"endHours":6.6648708638083916,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:18","end":"15:04","startHours":14.307692591656973,"endHours":15.071974764441832,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:56","end":"18:20","startHours":17.929103455581267,"endHours":18.329103455581265,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:08","end":"18:36","startHours":18.129103455581266,"endHours":18.6067798135718,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:53","end":"19:38","startHours":17.879103455581266,"endHours":19.629103455581266,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:01","end":"00:47","startHours":24.0148460733024,"endHours":24.77912824608726,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:40","end":"08:06","startHours":6.6648708638083916,"endHours":8.097899937780001,"quality":"auspicious"},{"name":"Roga","start":"08:06","end":"09:32","startHours":8.097899937780001,"endHours":9.53092901175161,"quality":"inauspicious"},{"name":"Udveg","start":"09:32","end":"10:58","startHours":9.53092901175161,"endHours":10.96395808572322,"quality":"inauspicious"},{"name":"Chala","start":"10:58","end":"12:24","startHours":10.96395808572322,"endHours":12.396987159694827,"quality":"neutral"},{"name":"Labha","start":"12:24","end":"13:50","startHours":12.396987159694827,"endHours":13.830016233666438,"quality":"auspicious"},{"name":"Amṛta","start":"13:50","end":"15:16","startHours":13.830016233666438,"endHours":15.263045307638048,"quality":"auspicious"},{"name":"Kāla","start":"15:16","end":"16:42","startHours":15.263045307638048,"endHours":16.696074381609655,"quality":"inauspicious"},{"name":"Śubha","start":"16:42","end":"18:08","startHours":16.696074381609655,"endHours":18.129103455581266,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:08","end":"19:42","startHours":18.129103455581266,"endHours":19.696074381609655,"quality":"auspicious"},{"name":"Kāla","start":"19:42","end":"21:16","startHours":19.696074381609655,"endHours":21.26304530763805,"quality":"inauspicious"},{"name":"Śubha","start":"21:16","end":"22:50","startHours":21.26304530763805,"endHours":22.830016233666438,"quality":"auspicious"},{"name":"Roga","start":"22:50","end":"00:24","startHours":22.830016233666438,"endHours":24.39698715969483,"quality":"inauspicious"},{"name":"Udveg","start":"00:24","end":"01:58","startHours":24.39698715969483,"endHours":25.96395808572322,"quality":"inauspicious"},{"name":"Chala","start":"01:58","end":"03:32","startHours":25.96395808572322,"endHours":27.53092901175161,"quality":"neutral"},{"name":"Labha","start":"03:32","end":"05:06","startHours":27.53092901175161,"endHours":29.09789993778,"quality":"auspicious"},{"name":"Amṛta","start":"05:06","end":"06:40","startHours":29.09789993778,"endHours":30.664870863808392,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:40","end":"07:40","startHours":6.6648708638083916,"endHours":7.6648708638083916,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:40","end":"08:40","startHours":7.6648708638083916,"endHours":8.664870863808392,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:40","end":"09:40","startHours":8.664870863808392,"endHours":9.664870863808392,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:40","end":"10:40","startHours":9.664870863808392,"endHours":10.664870863808392,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:40","end":"11:40","startHours":10.664870863808392,"endHours":11.664870863808392,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:40","end":"12:40","startHours":11.664870863808392,"endHours":12.664870863808392,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:40","end":"13:40","startHours":12.664870863808392,"endHours":13.664870863808392,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:40","end":"14:40","startHours":13.664870863808392,"endHours":14.664870863808392,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:40","end":"15:40","startHours":14.664870863808392,"endHours":15.664870863808392,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:40","end":"16:40","startHours":15.664870863808392,"endHours":16.664870863808392,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:40","end":"17:40","startHours":16.664870863808392,"endHours":17.664870863808392,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:40","end":"18:40","startHours":17.664870863808392,"endHours":18.664870863808392,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:40","end":"19:40","startHours":18.664870863808392,"endHours":19.664870863808392,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:40","end":"20:40","startHours":19.664870863808392,"endHours":20.664870863808392,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:40","end":"21:40","startHours":20.664870863808392,"endHours":21.664870863808392,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:40","end":"22:40","startHours":21.664870863808392,"endHours":22.664870863808392,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:40","end":"23:40","startHours":22.664870863808392,"endHours":23.664870863808392,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:40","end":"00:40","startHours":23.664870863808392,"endHours":24.664870863808392,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:40","end":"01:40","startHours":24.664870863808392,"endHours":25.664870863808392,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:40","end":"02:40","startHours":25.664870863808392,"endHours":26.664870863808392,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:40","end":"03:40","startHours":26.664870863808392,"endHours":27.664870863808392,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:40","end":"04:40","startHours":27.664870863808392,"endHours":28.664870863808392,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:40","end":"05:40","startHours":28.664870863808392,"endHours":29.664870863808392,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:40","end":"06:40","startHours":29.664870863808392,"endHours":30.664870863808392,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North","rahuVasa":"North-West","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-20.556926883990428,"eotMinutes":-10.349229581689698,"ayanamsa":23.8676}},"calendars":{"vikram_samvat":2058,"vikram_samvatsara":"Jaya","saka_samvat":1923,"saka_samvatsara":"Vṛṣa","bengali_samvat":1408,"malayalam_era":1177,"nanakshahi_year":532,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Navamī · Vikram 2058 Jaya · Śaka 1923 Vṛṣa"},"festivals":[],"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":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"vellore"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 18, 2001 CE · Vellore, Tamil Nadu · Vidhyamitra","description":"January 18, 2001 CE for Vellore, Tamil Nadu: Kṛṣṇa Navamī, sūryodaya 06:40, sūryāsta 18:08.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vellore/2001-01-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vellore/2001-01-18","sa":"https://sa.vidhyamitra.com/city/vellore/2001-01-18","hi":"https://hi.vidhyamitra.com/city/vellore/2001-01-18","x-default":"https://vidhyamitra.com/city/vellore/2001-01-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T09:47:46.154Z","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":"2026-06-01T09:47:46.154Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T09:47:46.154Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}