{"id":"vidhyamitra:day:1823-02-17:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1823-02-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1823-02-17","date_display":"February 17, 1823 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":1823,"month":2,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2386943.770833,"kali_year":4924,"ahargana":1798478.2708,"sun":{"sidereal_longitude":306.7673,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":19.8558,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":73.0885,"elapsed_within_tithi_degrees":1.0885},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2,"moon_longitude":19.8558,"elapsed_within_degrees":6.5224},"yoga":{"number":25,"name":"Brahma","sum_longitude":326.6231},"karana":{"half_tithi_index":12,"name":"Gara"},"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":1823,"month":2,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2386943.770833,"ahargana":1798478.2708,"kali_year":4924,"ayanamsa_lahiri":21.3822,"grahas":{"sun":{"sidereal_longitude":306.2399519999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":17.763351999999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false,"latitude":4.4975},"mars":{"sidereal_longitude":316.608252,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":313.48165199999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":38.36215199999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":321.915752,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":15.021551999999986,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":287.9663,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":107.9663,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"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":1823,"month":2,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2386943.770833,"kali_year":4924,"ahargana":1798478.2708,"sun":{"sidereal_longitude":306.7673,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":19.8558,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":73.0885,"elapsed_within_tithi_degrees":1.0885},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2,"moon_longitude":19.8558,"elapsed_within_degrees":6.5224},"yoga":{"number":25,"name":"Brahma","sum_longitude":326.6231},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.498,"elongation":73.089},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.498,"opposition_distance":106.911}},"eclipse_window_40days":[{"offset_days":-6,"type":"solar","occurs":true,"moon_latitude":0.854,"elongation":1.449}]},"calendars":{"vikram_samvat":1880,"vikram_samvatsara":"Durmukhi","saka_samvat":1745,"saka_samvatsara":"Subhānu","bengali_samvat":1230,"malayalam_era":999,"nanakshahi_year":354,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Saptamī · Vikram 1880 Durmukhi · Śaka 1745 Subhānu"},"festivals":[{"id":"kumbha-sankranti","name":"Kumbha Saṅkrānti","name_sanskrit":"कुम्भ सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aquarius; Kumbha-māsa begins.","vrata":false,"detection":{"sun_rashi":"Kumbha"},"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":"1823-02-17T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga February 17, 1823 CE · Vidhyamitra","description":"Vedic pañchāṅga for February 17, 1823 CE: Śukla Saptamī · Bharaṇī.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1823-02-17","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1823-02-17","sa":"https://sa.vidhyamitra.com/day/1823-02-17","hi":"https://hi.vidhyamitra.com/day/1823-02-17","x-default":"https://vidhyamitra.com/day/1823-02-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T04:08:47.374Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-21T04:08:47.374Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}