{"id":"vidhyamitra:day:1780-10-23:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1780-10-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1780-10-23","date_display":"October 23, 1780 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":1780,"month":10,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2371487.770833,"kali_year":4882,"ahargana":1783022.2708,"sun":{"sidereal_longitude":189.2904,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":127.9814,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":298.691,"elapsed_within_tithi_degrees":10.691},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":127.9814,"elapsed_within_degrees":7.9814},"yoga":{"number":24,"name":"Śukla","sum_longitude":317.2719},"karana":{"half_tithi_index":49,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1780,"month":10,"day":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2371487.770833,"ahargana":1783022.2708,"kali_year":4882,"ayanamsa_lahiri":20.7911,"grahas":{"sun":{"sidereal_longitude":189.465685,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":125.32908499999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false,"latitude":4.4159},"mars":{"sidereal_longitude":159.57698500000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":200.36148500000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":197.94598500000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":146.09608500000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":228.39718500000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":26.8996,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":206.8996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":"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":1780,"month":10,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2371487.770833,"kali_year":4882,"ahargana":1783022.2708,"sun":{"sidereal_longitude":189.2904,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":127.9814,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":298.691,"elapsed_within_tithi_degrees":10.691},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":127.9814,"elapsed_within_degrees":7.9814},"yoga":{"number":24,"name":"Śukla","sum_longitude":317.2719},"karana":{"half_tithi_index":49,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.416,"elongation":61.309},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.416,"opposition_distance":118.691}},"eclipse_window_40days":[{"offset_days":20,"type":"lunar","occurs":true,"moon_latitude":0.108,"opposition_distance":2.233}]},"calendars":{"vikram_samvat":1837,"vikram_samvatsara":"Pramādī","saka_samvat":1702,"saka_samvatsara":"Śārvarī","bengali_samvat":1187,"malayalam_era":956,"nanakshahi_year":311,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Daśamī · Vikram 1837 Pramādī · Śaka 1702 Śārvarī"},"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":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"valid_from":"1780-10-23T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga October 23, 1780 CE · Vidhyamitra","description":"Vedic pañchāṅga for October 23, 1780 CE: Kṛṣṇa Daśamī · Maghā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1780-10-23","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1780-10-23","sa":"https://sa.vidhyamitra.com/day/1780-10-23","hi":"https://hi.vidhyamitra.com/day/1780-10-23","x-default":"https://vidhyamitra.com/day/1780-10-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-25T22:29:20.269Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-25T22:29:20.269Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}