{"id":"vidhyamitra:day:1722-02-28:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1722-02-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1722-02-28","date_display":"February 28, 1722 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":1722,"month":2,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2350065.770833,"kali_year":4823,"ahargana":1761600.2708,"sun":{"sidereal_longitude":320.0152,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":103.6142,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":143.5989,"elapsed_within_tithi_degrees":11.5989},"nakshatra":{"number":8,"name":"Puṣya","pada":4,"moon_longitude":103.6142,"elapsed_within_degrees":10.2808},"yoga":{"number":5,"name":"Śobhana","sum_longitude":63.6294},"karana":{"half_tithi_index":23,"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":1722,"month":2,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2350065.770833,"ahargana":1761600.2708,"kali_year":4823,"ayanamsa_lahiri":19.9718,"grahas":{"sun":{"sidereal_longitude":319.212363,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":104.45716300000004,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false,"latitude":1.6605},"mars":{"sidereal_longitude":47.60016300000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":333.678363,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":229.05856300000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":312.739463,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":241.39406299999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":81.9402,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":261.9402,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":1722,"month":2,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2350065.770833,"kali_year":4823,"ahargana":1761600.2708,"sun":{"sidereal_longitude":320.0152,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":103.6142,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":143.5989,"elapsed_within_tithi_degrees":11.5989},"nakshatra":{"number":8,"name":"Puṣya","pada":4,"moon_longitude":103.6142,"elapsed_within_degrees":10.2808},"yoga":{"number":5,"name":"Śobhana","sum_longitude":63.6294},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.66,"elongation":143.599},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.66,"opposition_distance":36.401}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":1779,"vikram_samvatsara":"Rākṣasa","saka_samvat":1644,"saka_samvatsara":"Śubhakṛt","bengali_samvat":1129,"malayalam_era":898,"nanakshahi_year":253,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Phālguna","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Dvādaśī · Vikram 1779 Rākṣasa · Śaka 1644 Śubhakṛt"},"festivals":[],"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":[]},"validity":{"eternal":false,"valid_from":"1722-02-28T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga February 28, 1722 CE · Vidhyamitra","description":"Vedic pañchāṅga for February 28, 1722 CE: Śukla Dvādaśī · Puṣya.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1722-02-28","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1722-02-28","sa":"https://sa.vidhyamitra.com/day/1722-02-28","hi":"https://hi.vidhyamitra.com/day/1722-02-28","x-default":"https://vidhyamitra.com/day/1722-02-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T11:30:24.910Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-30T11:30:24.910Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}