{"id":"vidhyamitra:day:2179-02-28:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/2179-02-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2179-02-28","date_display":"February 28, 2179 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":2179,"month":2,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2516981.770833,"kali_year":5280,"ahargana":1928516.2708,"sun":{"sidereal_longitude":312.7141,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":213.2201,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":260.506,"elapsed_within_tithi_degrees":8.506},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":213.2201,"elapsed_within_degrees":13.2201},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":165.9343},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2179,"month":2,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2516981.770833,"ahargana":1928516.2708,"kali_year":5280,"ayanamsa_lahiri":26.3557,"grahas":{"sun":{"sidereal_longitude":312.98894499999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":217.058945,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false,"latitude":-1.8793},"mars":{"sidereal_longitude":31.463945000000024,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":284.107945,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":38.53274499999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":279.191145,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":47.23264499999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":237.9273,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":57.9273,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":2179,"month":2,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2516981.770833,"kali_year":5280,"ahargana":1928516.2708,"sun":{"sidereal_longitude":312.7141,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":213.2201,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":260.506,"elapsed_within_tithi_degrees":8.506},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":213.2201,"elapsed_within_degrees":13.2201},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":165.9343},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.879,"elongation":99.494},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.879,"opposition_distance":80.506}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":2236,"vikram_samvatsara":"Nandana","saka_samvat":2101,"saka_samvatsara":"Pramāthi","bengali_samvat":1586,"malayalam_era":1355,"nanakshahi_year":710,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Saptamī · Vikram 2236 Nandana · Śaka 2101 Pramāthi"},"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":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"valid_from":"2179-02-28T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga February 28, 2179 CE · Vidhyamitra","description":"Vedic pañchāṅga for February 28, 2179 CE: Kṛṣṇa Saptamī · Viśākhā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/2179-02-28","hreflang_alternates":{"en":"https://vidhyamitra.com/day/2179-02-28","sa":"https://sa.vidhyamitra.com/day/2179-02-28","hi":"https://hi.vidhyamitra.com/day/2179-02-28","x-default":"https://vidhyamitra.com/day/2179-02-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T09:11:17.974Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-21T09:11:17.974Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}