{"id":"vidhyamitra:day:2013-10-19:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/2013-10-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2013-10-19","date_display":"October 19, 2013 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":2013,"month":10,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456584.770833,"kali_year":5115,"ahargana":1868119.2708,"sun":{"sidereal_longitude":181.013,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":3.5139,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":182.5009,"elapsed_within_tithi_degrees":2.5009},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":3.5139,"elapsed_within_degrees":3.5139},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":184.5268},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2013,"month":10,"day":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456584.770833,"ahargana":1868119.2708,"kali_year":5115,"ayanamsa_lahiri":24.0458,"grahas":{"sun":{"sidereal_longitude":181.77275400000008,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":2.4875539999999887,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false,"latitude":1.1284},"mars":{"sidereal_longitude":127.91585400000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":204.069254,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":85.27975400000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"venus":{"sidereal_longitude":228.07395399999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":197.73215400000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":198.051,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":18.051,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"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":2013,"month":10,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456584.770833,"kali_year":5115,"ahargana":1868119.2708,"sun":{"sidereal_longitude":181.013,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":3.5139,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":182.5009,"elapsed_within_tithi_degrees":2.5009},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":3.5139,"elapsed_within_degrees":3.5139},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":184.5268},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.128,"elongation":177.499},"lunar":{"type":"lunar","occurs":true,"moon_latitude":1.128,"opposition_distance":2.501}},"eclipse_window_40days":[{"offset_days":0,"type":"lunar","occurs":true,"moon_latitude":1.128,"opposition_distance":2.501}]},"calendars":{"vikram_samvat":2070,"vikram_samvatsara":"Parābhava","saka_samvat":1935,"saka_samvatsara":"Vijaya","bengali_samvat":1420,"malayalam_era":1189,"nanakshahi_year":544,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Pratipada · Vikram 2070 Parābhava · Śaka 1935 Vijaya"},"festivals":[{"id":"tula-sankranti","name":"Tulā Saṅkrānti","name_sanskrit":"तुला सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Libra.","vrata":false,"detection":{"sun_rashi":"Tulā"},"precedence":5}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","relevance":0.5}]},"validity":{"eternal":false,"valid_from":"2013-10-19T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga October 19, 2013 CE · Vidhyamitra","description":"Vedic pañchāṅga for October 19, 2013 CE: Kṛṣṇa Pratipada · Aśvinī.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/2013-10-19","hreflang_alternates":{"en":"https://vidhyamitra.com/day/2013-10-19","sa":"https://sa.vidhyamitra.com/day/2013-10-19","hi":"https://hi.vidhyamitra.com/day/2013-10-19","x-default":"https://vidhyamitra.com/day/2013-10-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T10:39:24.107Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-14T10:39:24.107Z","pillar_versions":{"BOB-History":"Pūrṇa"}}}