{"id":"vidhyamitra:day:1911-06-13:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1911-06-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1911-06-13","date_display":"June 13, 1911 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":1911,"month":6,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2419200.770833,"kali_year":5013,"ahargana":1830735.2708,"sun":{"sidereal_longitude":58.3025,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":252.6113,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.3088,"elapsed_within_tithi_degrees":2.3088},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":252.6113,"elapsed_within_degrees":12.6113},"yoga":{"number":24,"name":"Śukla","sum_longitude":310.9139},"karana":{"half_tithi_index":32,"name":"Taitila"},"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":1911,"month":6,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2419200.770833,"ahargana":1830735.2708,"kali_year":5013,"ayanamsa_lahiri":22.616,"grahas":{"sun":{"sidereal_longitude":58.30269800000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":250.65469799999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false,"latitude":-3.6289},"mars":{"sidereal_longitude":345.986798,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":38.38259800000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":194.04089799999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":true},"venus":{"sidereal_longitude":103.26959799999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":23.352798000000007,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":18.8352,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":198.8352,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","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":1911,"month":6,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2419200.770833,"kali_year":5013,"ahargana":1830735.2708,"sun":{"sidereal_longitude":58.3025,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":252.6113,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.3088,"elapsed_within_tithi_degrees":2.3088},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":252.6113,"elapsed_within_degrees":12.6113},"yoga":{"number":24,"name":"Śukla","sum_longitude":310.9139},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.629,"elongation":165.691},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.629,"opposition_distance":14.309}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":1968,"vikram_samvatsara":"Raktākṣī","saka_samvat":1833,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1318,"malayalam_era":1087,"nanakshahi_year":442,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Dvitīyā · Vikram 1968 Raktākṣī · Śaka 1833 Virodhakṛt"},"festivals":[{"id":"vrishabha-sankranti","name":"Vṛṣabha Saṅkrānti","name_sanskrit":"वृषभ सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Taurus.","vrata":false,"detection":{"sun_rashi":"Vṛṣabha"},"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":[]},"validity":{"eternal":false,"valid_from":"1911-06-13T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga June 13, 1911 CE · Vidhyamitra","description":"Vedic pañchāṅga for June 13, 1911 CE: Kṛṣṇa Dvitīyā · Mūla.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1911-06-13","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1911-06-13","sa":"https://sa.vidhyamitra.com/day/1911-06-13","hi":"https://hi.vidhyamitra.com/day/1911-06-13","x-default":"https://vidhyamitra.com/day/1911-06-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T06:05:51.969Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-14T06:05:51.969Z","pillar_versions":{"BOB-History":"Pūrṇa"}}}