{"id":"vidhyamitra:day:2300-01-13:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/2300-01-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2300-01-13","date_display":"January 13, 2300 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":2300,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2561129.770833,"kali_year":5401,"ahargana":1972664.2708,"sun":{"sidereal_longitude":263.4064,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":162.8193,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":259.413,"elapsed_within_tithi_degrees":7.413},"nakshatra":{"number":13,"name":"Hasta","pada":1,"moon_longitude":162.8193,"elapsed_within_degrees":2.8193},"yoga":{"number":5,"name":"Śobhana","sum_longitude":66.2257},"karana":{"half_tithi_index":43,"name":"Bava"},"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":2300,"month":1,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2561129.770833,"ahargana":1972664.2708,"kali_year":5401,"ayanamsa_lahiri":28.0442,"grahas":{"sun":{"sidereal_longitude":264.28456600000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":164.570466,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false,"latitude":4.3648},"mars":{"sidereal_longitude":184.566466,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":237.52176599999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":123.183266,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":306.98956599999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":94.58646599999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":58.7538,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":238.7538,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","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":2300,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2561129.770833,"kali_year":5401,"ahargana":1972664.2708,"sun":{"sidereal_longitude":263.4064,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":162.8193,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":259.413,"elapsed_within_tithi_degrees":7.413},"nakshatra":{"number":13,"name":"Hasta","pada":1,"moon_longitude":162.8193,"elapsed_within_degrees":2.8193},"yoga":{"number":5,"name":"Śobhana","sum_longitude":66.2257},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.365,"elongation":100.587},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.365,"opposition_distance":79.413}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":2357,"vikram_samvatsara":"Vijaya","saka_samvat":2222,"saka_samvatsara":"Vikrama","bengali_samvat":1707,"malayalam_era":1476,"nanakshahi_year":831,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Saptamī · Vikram 2357 Vijaya · Śaka 2222 Vikrama"},"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":"2300-01-13T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga January 13, 2300 CE · Vidhyamitra","description":"Vedic pañchāṅga for January 13, 2300 CE: Kṛṣṇa Saptamī · Hasta.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/2300-01-13","hreflang_alternates":{"en":"https://vidhyamitra.com/day/2300-01-13","sa":"https://sa.vidhyamitra.com/day/2300-01-13","hi":"https://hi.vidhyamitra.com/day/2300-01-13","x-default":"https://vidhyamitra.com/day/2300-01-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T07:27:36.864Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-06-02T07:27:36.864Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}