{"id":"vidhyamitra:city-day:vrindavan:2131-01-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/2131-01-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2131-01-08","date_display":"January 8, 2131 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":2131,"month":1,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499398.770833,"kali_year":5232,"ahargana":1910933.2708,"sun":{"sidereal_longitude":261.0728,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":11.2501,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":110.1773,"elapsed_within_tithi_degrees":2.1773},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":11.2501,"elapsed_within_degrees":11.2501},"yoga":{"number":21,"name":"Siddha","sum_longitude":272.3229},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2131,"month":1,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2499398.770833,"ahargana":1910933.2708,"kali_year":5232,"ayanamsa_lahiri":25.6832,"grahas":{"sun":{"sidereal_longitude":261.57374400000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":11.50174400000003,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false,"latitude":-4.4065},"mars":{"sidereal_longitude":220.13894400000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":248.26284399999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":18.361943999999994,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":215.85954400000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":197.061644,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":89.5593,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":269.5593,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":2131,"month":1,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499398.770833,"kali_year":5232,"ahargana":1910933.2708,"sun":{"sidereal_longitude":261.0728,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":11.2501,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":110.1773,"elapsed_within_tithi_degrees":2.1773},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":11.2501,"elapsed_within_degrees":11.2501},"yoga":{"number":21,"name":"Siddha","sum_longitude":272.3229},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.406,"elongation":110.177},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.406,"opposition_distance":69.823}},"eclipse_window_40days":[]},"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":"07:11","sunsetLocal":"17:41","solarNoonLocal":"12:26","dayLengthHours":10.488170748006246,"dayLengthDisplay":"10 Hours 29 Mins 17 Secs","nightLengthDisplay":"13 Hours 30 Mins 43 Secs","moonriseLocal":"13:13","moonsetLocal":"02:18","rahuKala":{"name":"Rāhu Kāla","start":"08:30","end":"09:49","startHours":8.50134519671978,"endHours":9.812366540220562,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:07","end":"12:26","startHours":11.123387883721342,"endHours":12.434409227222122,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:45","end":"15:03","startHours":13.745430570722904,"endHours":15.056451914223684,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"09:59","startHours":9.637563694420457,"endHours":9.987169386020666,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:38","end":"07:54","startHours":7.627330967719261,"endHours":7.907015520999427,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:47","startHours":12.084803535621914,"endHours":12.784014918822331,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:48","end":"06:29","startHours":5.791901086818168,"endHours":6.491112470018584,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:19","end":"07:11","startHours":6.31630962421848,"endHours":7.190323853219001,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"14:53","startHours":14.182437685223164,"endHours":14.881649068423581,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:29","end":"17:53","startHours":17.478494601225247,"endHours":17.878494601225245,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:41","end":"18:07","startHours":17.678494601225246,"endHours":18.115501715725507,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:26","end":"19:11","startHours":17.428494601225246,"endHours":19.178494601225246,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:47","startHours":24.084803535621916,"endHours":24.78401491882233,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:11","end":"08:30","startHours":7.190323853219001,"endHours":8.50134519671978,"quality":"auspicious"},{"name":"Kāla","start":"08:30","end":"09:49","startHours":8.50134519671978,"endHours":9.812366540220562,"quality":"inauspicious"},{"name":"Śubha","start":"09:49","end":"11:07","startHours":9.812366540220562,"endHours":11.123387883721342,"quality":"auspicious"},{"name":"Roga","start":"11:07","end":"12:26","startHours":11.123387883721342,"endHours":12.434409227222122,"quality":"inauspicious"},{"name":"Udveg","start":"12:26","end":"13:45","startHours":12.434409227222122,"endHours":13.745430570722904,"quality":"inauspicious"},{"name":"Chala","start":"13:45","end":"15:03","startHours":13.745430570722904,"endHours":15.056451914223684,"quality":"neutral"},{"name":"Labha","start":"15:03","end":"16:22","startHours":15.056451914223684,"endHours":16.367473257724466,"quality":"auspicious"},{"name":"Amṛta","start":"16:22","end":"17:41","startHours":16.367473257724466,"endHours":17.678494601225246,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:41","end":"19:22","startHours":17.678494601225246,"endHours":19.367473257724466,"quality":"neutral"},{"name":"Labha","start":"19:22","end":"21:03","startHours":19.367473257724466,"endHours":21.056451914223686,"quality":"auspicious"},{"name":"Amṛta","start":"21:03","end":"22:45","startHours":21.056451914223686,"endHours":22.745430570722903,"quality":"auspicious"},{"name":"Kāla","start":"22:45","end":"00:26","startHours":22.745430570722903,"endHours":24.434409227222122,"quality":"inauspicious"},{"name":"Śubha","start":"00:26","end":"02:07","startHours":24.434409227222122,"endHours":26.123387883721342,"quality":"auspicious"},{"name":"Roga","start":"02:07","end":"03:49","startHours":26.123387883721342,"endHours":27.812366540220562,"quality":"inauspicious"},{"name":"Udveg","start":"03:49","end":"05:30","startHours":27.812366540220562,"endHours":29.501345196719782,"quality":"inauspicious"},{"name":"Chala","start":"05:30","end":"07:11","startHours":29.501345196719782,"endHours":31.190323853219,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:11","end":"08:11","startHours":7.190323853219001,"endHours":8.190323853219,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:11","end":"09:11","startHours":8.190323853219,"endHours":9.190323853219,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:11","end":"10:11","startHours":9.190323853219,"endHours":10.190323853219,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:11","end":"11:11","startHours":10.190323853219,"endHours":11.190323853219,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:11","end":"12:11","startHours":11.190323853219,"endHours":12.190323853219,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:11","end":"13:11","startHours":12.190323853219,"endHours":13.190323853219,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:11","end":"14:11","startHours":13.190323853219,"endHours":14.190323853219,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:11","end":"15:11","startHours":14.190323853219,"endHours":15.190323853219,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:11","end":"16:11","startHours":15.190323853219,"endHours":16.190323853219,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:11","end":"17:11","startHours":16.190323853219,"endHours":17.190323853219,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:11","end":"18:11","startHours":17.190323853219,"endHours":18.190323853219,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:11","end":"19:11","startHours":18.190323853219,"endHours":19.190323853219,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:11","end":"20:11","startHours":19.190323853219,"endHours":20.190323853219,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:11","end":"21:11","startHours":20.190323853219,"endHours":21.190323853219,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:11","end":"22:11","startHours":21.190323853219,"endHours":22.190323853219,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:11","end":"23:11","startHours":22.190323853219,"endHours":23.190323853219,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:11","end":"00:11","startHours":23.190323853219,"endHours":24.190323853219,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:11","end":"01:11","startHours":24.190323853219,"endHours":25.190323853219,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:11","end":"02:11","startHours":25.190323853219,"endHours":26.190323853219,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:11","end":"03:11","startHours":26.190323853219,"endHours":27.190323853219,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:11","end":"04:11","startHours":27.190323853219,"endHours":28.190323853219,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:11","end":"05:11","startHours":28.190323853219,"endHours":29.190323853219,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:11","end":"06:11","startHours":29.190323853219,"endHours":30.190323853219,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:11","end":"07:11","startHours":30.190323853219,"endHours":31.190323853219,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-22.323037405653142,"eotMinutes":-6.7017536333273355,"ayanamsa":25.6832}},"calendars":{"vikram_samvat":2188,"vikram_samvatsara":"Krodhi","saka_samvat":2053,"saka_samvatsara":"Khara","bengali_samvat":1538,"malayalam_era":1307,"nanakshahi_year":662,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Daśamī · Vikram 2188 Krodhi · Śaka 2053 Khara"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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 January 8, 2131 CE · Vṛndāvana · Vidhyamitra","description":"January 8, 2131 CE for Vṛndāvana: Śukla Daśamī, sūryodaya 07:11, sūryāsta 17:41.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/2131-01-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/2131-01-08","sa":"https://sa.vidhyamitra.com/city/vrindavan/2131-01-08","hi":"https://hi.vidhyamitra.com/city/vrindavan/2131-01-08","x-default":"https://vidhyamitra.com/city/vrindavan/2131-01-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-24T09:14:09.442Z","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":"2026-05-24T09:14:09.442Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-24T09:14:09.442Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}