{"id":"vidhyamitra:day:1827-12-09:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1827-12-09","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1827-12-09","date_display":"December 9, 1827 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":1827,"month":12,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2388699.770833,"kali_year":4929,"ahargana":1800234.2708,"sun":{"sidereal_longitude":234.78,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":119.5805,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":244.8005,"elapsed_within_tithi_degrees":4.8005},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4,"moon_longitude":119.5805,"elapsed_within_degrees":12.9138},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":354.3605},"karana":{"half_tithi_index":40,"name":"Gara"},"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":1827,"month":12,"day":9,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2388699.770833,"ahargana":1800234.2708,"kali_year":4929,"ayanamsa_lahiri":21.4494,"grahas":{"sun":{"sidereal_longitude":234.79265999999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":115.74696,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false,"latitude":-4.3533},"mars":{"sidereal_longitude":184.65326000000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":220.67056000000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":196.70576000000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":252.76445999999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":89.18475999999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":194.925,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":14.925,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":1827,"month":12,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2388699.770833,"kali_year":4929,"ahargana":1800234.2708,"sun":{"sidereal_longitude":234.78,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":119.5805,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":244.8005,"elapsed_within_tithi_degrees":4.8005},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4,"moon_longitude":119.5805,"elapsed_within_degrees":12.9138},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":354.3605},"karana":{"half_tithi_index":40,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.353,"elongation":115.199},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.353,"opposition_distance":64.801}},"eclipse_window_40days":[{"offset_days":-20,"type":"solar","occurs":true,"moon_latitude":1.248,"elongation":2.252}]},"calendars":{"vikram_samvat":1884,"vikram_samvatsara":"Śārvarī","saka_samvat":1749,"saka_samvatsara":"Sarvajit","bengali_samvat":1234,"malayalam_era":1003,"nanakshahi_year":358,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Kṛṣṇa Ṣaṣṭhī · Vikram 1884 Śārvarī · Śaka 1749 Sarvajit"},"festivals":[{"id":"vrischika-sankranti","name":"Vṛścika Saṅkrānti","name_sanskrit":"वृश्चिक सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Scorpio.","vrata":false,"detection":{"sun_rashi":"Vṛścika"},"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":[]},"validity":{"eternal":false,"valid_from":"1827-12-09T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga December 9, 1827 CE · Vidhyamitra","description":"Vedic pañchāṅga for December 9, 1827 CE: Kṛṣṇa Ṣaṣṭhī · Āśleṣā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1827-12-09","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1827-12-09","sa":"https://sa.vidhyamitra.com/day/1827-12-09","hi":"https://hi.vidhyamitra.com/day/1827-12-09","x-default":"https://vidhyamitra.com/day/1827-12-09"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T03:00:42.653Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-21T03:00:42.653Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}