{"id":"vidhyamitra:city-day:vrindavan:1851-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/1851-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1851-02-01","date_display":"February 1, 1851 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":1851,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2397154.770833,"kali_year":4952,"ahargana":1808689.2708,"sun":{"sidereal_longitude":290.246,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":288.8322,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":358.5862,"elapsed_within_tithi_degrees":10.5862},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":288.8322,"elapsed_within_degrees":8.8322},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":219.0782},"karana":{"half_tithi_index":59,"name":"Nāga"},"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":1851,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2397154.770833,"ahargana":1808689.2708,"kali_year":4952,"ayanamsa_lahiri":21.7728,"grahas":{"sun":{"sidereal_longitude":289.870217,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":287.494017,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false,"latitude":-0.1486},"mars":{"sidereal_longitude":275.065917,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":273.34011699999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":183.15351699999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":248.04371700000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":355.892517,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":106.9384,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":286.9384,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1851,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2397154.770833,"kali_year":4952,"ahargana":1808689.2708,"sun":{"sidereal_longitude":290.246,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":288.8322,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":358.5862,"elapsed_within_tithi_degrees":10.5862},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":288.8322,"elapsed_within_degrees":8.8322},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":219.0782},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":true,"moon_latitude":-0.149,"elongation":1.414},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.149,"opposition_distance":178.586}},"eclipse_window_40days":[{"offset_days":0,"type":"solar","occurs":true,"moon_latitude":-0.149,"elongation":1.414},{"offset_days":15,"type":"lunar","occurs":true,"moon_latitude":1.378,"opposition_distance":1.518}]},"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"07:06","sunsetLocal":"18:00","solarNoonLocal":"12:33","dayLengthHours":10.885874127586899,"dayLengthDisplay":"10 Hours 53 Mins 09 Secs","nightLengthDisplay":"13 Hours 06 Mins 51 Secs","moonriseLocal":"07:00","moonsetLocal":"17:47","rahuKala":{"name":"Rāhu Kāla","start":"09:50","end":"11:11","startHours":9.829400603393204,"endHours":11.190134869341566,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:55","end":"15:16","startHours":13.911603401238292,"endHours":15.272337667186651,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:06","end":"08:28","startHours":7.107932071496479,"endHours":8.46866633744484,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:39","end":"10:01","startHours":9.647969367933422,"endHours":10.010831838852985,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:34","end":"07:51","startHours":7.561510160145933,"endHours":7.851800136881584,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:11","end":"12:55","startHours":12.188006664370365,"endHours":12.91373160620949,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:39","end":"06:23","startHours":5.656482187818225,"endHours":6.382207129657353,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:12","end":"07:06","startHours":6.20077589419757,"endHours":7.107932071496479,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:05","startHours":14.365181489887746,"endHours":15.090906431726873,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:48","end":"18:12","startHours":17.793806199083377,"endHours":18.193806199083376,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:00","end":"18:27","startHours":17.993806199083377,"endHours":18.44738428773283,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:45","end":"19:30","startHours":17.743806199083377,"endHours":19.493806199083377,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:11","end":"00:55","startHours":24.188006664370366,"endHours":24.913731606209492,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:06","end":"08:28","startHours":7.107932071496479,"endHours":8.46866633744484,"quality":"inauspicious"},{"name":"Śubha","start":"08:28","end":"09:50","startHours":8.46866633744484,"endHours":9.829400603393204,"quality":"auspicious"},{"name":"Roga","start":"09:50","end":"11:11","startHours":9.829400603393204,"endHours":11.190134869341566,"quality":"inauspicious"},{"name":"Udveg","start":"11:11","end":"12:33","startHours":11.190134869341566,"endHours":12.550869135289929,"quality":"inauspicious"},{"name":"Chala","start":"12:33","end":"13:55","startHours":12.550869135289929,"endHours":13.911603401238292,"quality":"neutral"},{"name":"Labha","start":"13:55","end":"15:16","startHours":13.911603401238292,"endHours":15.272337667186651,"quality":"auspicious"},{"name":"Amṛta","start":"15:16","end":"16:38","startHours":15.272337667186651,"endHours":16.633071933135014,"quality":"auspicious"},{"name":"Kāla","start":"16:38","end":"18:00","startHours":16.633071933135014,"endHours":17.993806199083377,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:00","end":"19:38","startHours":17.993806199083377,"endHours":19.633071933135014,"quality":"auspicious"},{"name":"Amṛta","start":"19:38","end":"21:16","startHours":19.633071933135014,"endHours":21.27233766718665,"quality":"auspicious"},{"name":"Kāla","start":"21:16","end":"22:55","startHours":21.27233766718665,"endHours":22.91160340123829,"quality":"inauspicious"},{"name":"Śubha","start":"22:55","end":"00:33","startHours":22.91160340123829,"endHours":24.55086913528993,"quality":"auspicious"},{"name":"Roga","start":"00:33","end":"02:11","startHours":24.55086913528993,"endHours":26.190134869341563,"quality":"inauspicious"},{"name":"Udveg","start":"02:11","end":"03:50","startHours":26.190134869341563,"endHours":27.829400603393204,"quality":"inauspicious"},{"name":"Chala","start":"03:50","end":"05:28","startHours":27.829400603393204,"endHours":29.46866633744484,"quality":"neutral"},{"name":"Labha","start":"05:28","end":"07:06","startHours":29.46866633744484,"endHours":31.107932071496478,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:06","end":"08:06","startHours":7.107932071496479,"endHours":8.107932071496478,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:06","end":"09:06","startHours":8.107932071496478,"endHours":9.107932071496478,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:06","end":"10:06","startHours":9.107932071496478,"endHours":10.107932071496478,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:06","end":"11:06","startHours":10.107932071496478,"endHours":11.107932071496478,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:06","end":"12:06","startHours":11.107932071496478,"endHours":12.107932071496478,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:06","end":"13:06","startHours":12.107932071496478,"endHours":13.107932071496478,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:06","end":"14:06","startHours":13.107932071496478,"endHours":14.107932071496478,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:06","end":"15:06","startHours":14.107932071496478,"endHours":15.107932071496478,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:06","end":"16:06","startHours":15.107932071496478,"endHours":16.107932071496478,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:06","end":"17:06","startHours":16.107932071496478,"endHours":17.107932071496478,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:06","end":"18:06","startHours":17.107932071496478,"endHours":18.107932071496478,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:06","end":"19:06","startHours":18.107932071496478,"endHours":19.107932071496478,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:06","end":"20:06","startHours":19.107932071496478,"endHours":20.107932071496478,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:06","end":"21:06","startHours":20.107932071496478,"endHours":21.107932071496478,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:06","end":"22:06","startHours":21.107932071496478,"endHours":22.107932071496478,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:06","end":"23:06","startHours":22.107932071496478,"endHours":23.107932071496478,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:06","end":"00:06","startHours":23.107932071496478,"endHours":24.107932071496478,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:06","end":"01:06","startHours":24.107932071496478,"endHours":25.107932071496478,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:06","end":"02:06","startHours":25.107932071496478,"endHours":26.107932071496478,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:06","end":"03:06","startHours":26.107932071496478,"endHours":27.107932071496478,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:06","end":"04:06","startHours":27.107932071496478,"endHours":28.107932071496478,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:06","end":"05:06","startHours":28.107932071496478,"endHours":29.107932071496478,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:06","end":"06:06","startHours":29.107932071496478,"endHours":30.107932071496478,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:06","end":"07:06","startHours":30.107932071496478,"endHours":31.107932071496478,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-17.291020242674183,"eotMinutes":-13.689348117395623,"ayanamsa":21.7728}},"calendars":{"vikram_samvat":1908,"vikram_samvatsara":"Raktākṣī","saka_samvat":1773,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1258,"malayalam_era":1027,"nanakshahi_year":382,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Amāvasyā · Vikram 1908 Raktākṣī · Śaka 1773 Virodhakṛt"},"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"vrindavan"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 1, 1851 CE · Vṛndāvana · Vidhyamitra","description":"February 1, 1851 CE for Vṛndāvana: Kṛṣṇa Amāvasyā, sūryodaya 07:06, sūryāsta 18:00.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/1851-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/1851-02-01","sa":"https://sa.vidhyamitra.com/city/vrindavan/1851-02-01","hi":"https://hi.vidhyamitra.com/city/vrindavan/1851-02-01","x-default":"https://vidhyamitra.com/city/vrindavan/1851-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T19:44:13.722Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-06-02T19:44:13.722Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T19:44:13.722Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}