{"id":"vidhyamitra:city-day:aligarh:2012-01-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/aligarh/2012-01-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2012-01-31","date_display":"January 31, 2012 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2012,"month":1,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455957.770833,"kali_year":5113,"ahargana":1867492.2708,"sun":{"sidereal_longitude":286.5068,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":15.9068,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":89.3999,"elapsed_within_tithi_degrees":5.3999},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":15.9068,"elapsed_within_degrees":2.5734},"yoga":{"number":23,"name":"Śubha","sum_longitude":302.4136},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2012,"month":1,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455957.770833,"ahargana":1867492.2708,"kali_year":5113,"ayanamsa_lahiri":24.0218,"grahas":{"sun":{"sidereal_longitude":286.52971,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":15.10120999999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false,"latitude":2.6028},"mars":{"sidereal_longitude":148.54530999999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":281.28981,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":8.339110000000005,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":326.06440999999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":185.17691000000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":231.2725,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":51.2725,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2012,"month":1,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455957.770833,"kali_year":5113,"ahargana":1867492.2708,"sun":{"sidereal_longitude":286.5068,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":15.9068,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":89.3999,"elapsed_within_tithi_degrees":5.3999},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":15.9068,"elapsed_within_degrees":2.5734},"yoga":{"number":23,"name":"Śubha","sum_longitude":302.4136},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.603,"elongation":89.4},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.603,"opposition_distance":90.6}},"eclipse_window_40days":[]},"city":{"slug":"aligarh","name":"Aligarh, Uttar Pradesh","lat":27.8974,"lon":78.088,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"aligarh","name":"Aligarh, Uttar Pradesh","lat":27.8974,"lon":78.088,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"sunriseLocal":"07:06","sunsetLocal":"17:57","solarNoonLocal":"12:31","dayLengthHours":10.845235999843602,"dayLengthDisplay":"10 Hours 50 Mins 43 Secs","nightLengthDisplay":"13 Hours 09 Mins 17 Secs","moonriseLocal":"11:51","moonsetLocal":"01:00","rahuKala":{"name":"Rāhu Kāla","start":"15:14","end":"16:35","startHours":15.230935475658267,"endHours":16.58658997563872,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:48","end":"11:10","startHours":9.808317475736466,"endHours":11.163971975716917,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:31","end":"13:53","startHours":12.519626475697368,"endHours":13.875280975677818,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"09:59","startHours":9.62756354240574,"endHours":9.989071409067193,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:33","end":"07:50","startHours":7.548893309102383,"endHours":7.838099602431546,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:53","startHours":12.158118609035915,"endHours":12.881134342358822,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:39","end":"06:22","startHours":5.650977009129752,"endHours":6.37399274245266,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:12","end":"07:06","startHours":6.193238809121933,"endHours":7.097008475775566,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:20","end":"15:03","startHours":14.327165809004633,"endHours":15.05018154232754,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:45","end":"18:09","startHours":17.74224447561917,"endHours":18.14224447561917,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:57","end":"18:24","startHours":17.94224447561917,"endHours":18.394129308945985,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:42","end":"19:27","startHours":17.69224447561917,"endHours":19.44224447561917,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:53","startHours":24.158118609035913,"endHours":24.881134342358823,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:06","end":"08:27","startHours":7.097008475775566,"endHours":8.452662975756017,"quality":"inauspicious"},{"name":"Udveg","start":"08:27","end":"09:48","startHours":8.452662975756017,"endHours":9.808317475736466,"quality":"inauspicious"},{"name":"Chala","start":"09:48","end":"11:10","startHours":9.808317475736466,"endHours":11.163971975716917,"quality":"neutral"},{"name":"Labha","start":"11:10","end":"12:31","startHours":11.163971975716917,"endHours":12.519626475697368,"quality":"auspicious"},{"name":"Amṛta","start":"12:31","end":"13:53","startHours":12.519626475697368,"endHours":13.875280975677818,"quality":"auspicious"},{"name":"Kāla","start":"13:53","end":"15:14","startHours":13.875280975677818,"endHours":15.230935475658267,"quality":"inauspicious"},{"name":"Śubha","start":"15:14","end":"16:35","startHours":15.230935475658267,"endHours":16.58658997563872,"quality":"auspicious"},{"name":"Roga","start":"16:35","end":"17:57","startHours":16.58658997563872,"endHours":17.94224447561917,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:57","end":"19:35","startHours":17.94224447561917,"endHours":19.58658997563872,"quality":"inauspicious"},{"name":"Śubha","start":"19:35","end":"21:14","startHours":19.58658997563872,"endHours":21.23093547565827,"quality":"auspicious"},{"name":"Roga","start":"21:14","end":"22:53","startHours":21.23093547565827,"endHours":22.875280975677818,"quality":"inauspicious"},{"name":"Udveg","start":"22:53","end":"00:31","startHours":22.875280975677818,"endHours":24.51962647569737,"quality":"inauspicious"},{"name":"Chala","start":"00:31","end":"02:10","startHours":24.51962647569737,"endHours":26.16397197571692,"quality":"neutral"},{"name":"Labha","start":"02:10","end":"03:48","startHours":26.16397197571692,"endHours":27.808317475736466,"quality":"auspicious"},{"name":"Amṛta","start":"03:48","end":"05:27","startHours":27.808317475736466,"endHours":29.452662975756017,"quality":"auspicious"},{"name":"Kāla","start":"05:27","end":"07:06","startHours":29.452662975756017,"endHours":31.097008475775567,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:06","end":"08:06","startHours":7.097008475775566,"endHours":8.097008475775567,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:06","end":"09:06","startHours":8.097008475775567,"endHours":9.097008475775567,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:06","end":"10:06","startHours":9.097008475775567,"endHours":10.097008475775567,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:06","end":"11:06","startHours":10.097008475775567,"endHours":11.097008475775567,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:06","end":"12:06","startHours":11.097008475775567,"endHours":12.097008475775567,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:06","end":"13:06","startHours":12.097008475775567,"endHours":13.097008475775567,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:06","end":"14:06","startHours":13.097008475775567,"endHours":14.097008475775567,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:06","end":"15:06","startHours":14.097008475775567,"endHours":15.097008475775567,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:06","end":"16:06","startHours":15.097008475775567,"endHours":16.097008475775567,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:06","end":"17:06","startHours":16.097008475775567,"endHours":17.097008475775567,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:06","end":"18:06","startHours":17.097008475775567,"endHours":18.097008475775567,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:06","end":"19:06","startHours":18.097008475775567,"endHours":19.097008475775567,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:06","end":"20:06","startHours":19.097008475775567,"endHours":20.097008475775567,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:06","end":"21:06","startHours":20.097008475775567,"endHours":21.097008475775567,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:06","end":"22:06","startHours":21.097008475775567,"endHours":22.097008475775567,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:06","end":"23:06","startHours":22.097008475775567,"endHours":23.097008475775567,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:06","end":"00:06","startHours":23.097008475775567,"endHours":24.097008475775567,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:06","end":"01:06","startHours":24.097008475775567,"endHours":25.097008475775567,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:06","end":"02:06","startHours":25.097008475775567,"endHours":26.097008475775567,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:06","end":"03:06","startHours":26.097008475775567,"endHours":27.097008475775567,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:06","end":"04:06","startHours":27.097008475775567,"endHours":28.097008475775567,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:06","end":"05:06","startHours":28.097008475775567,"endHours":29.097008475775567,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:06","end":"06:06","startHours":29.097008475775567,"endHours":30.097008475775567,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:06","end":"07:06","startHours":30.097008475775567,"endHours":31.097008475775567,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","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":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Mudgara","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":-17.590136348662018,"eotMinutes":-13.52958854184206,"ayanamsa":24.0218}},"calendars":{"vikram_samvat":2069,"vikram_samvatsara":"Viśvāvasu","saka_samvat":1934,"saka_samvatsara":"Nandana","bengali_samvat":1419,"malayalam_era":1188,"nanakshahi_year":543,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","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 Śukla Aṣṭamī · Vikram 2069 Viśvāvasu · Śaka 1934 Nandana"},"festivals":[{"id":"bhishma-ashtami","name":"Bhīṣmāṣṭamī","name_sanskrit":"भीष्माष्टमी","tradition":"Pan-Hindu","associated_deity":"Bhīṣma Pitāmaha","significance":"Bhīṣma's mahaprasthāna anniversary (Māgha Śukla 8); Bhīṣma-tarpaṇa.","vrata":true,"detection":{"tithi_number":8,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2,"sources":["Mahābhārata, Anuśāsana Parva"]}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Dedicated festival walk for Bhīṣmāṣṭamī is not live yet; Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"aligarh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 31, 2012 CE · Aligarh, Uttar Pradesh · Vidhyamitra","description":"January 31, 2012 CE for Aligarh, Uttar Pradesh: Śukla Aṣṭamī, sūryodaya 07:06, sūryāsta 17:57.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/aligarh/2012-01-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/aligarh/2012-01-31","sa":"https://sa.vidhyamitra.com/city/aligarh/2012-01-31","hi":"https://hi.vidhyamitra.com/city/aligarh/2012-01-31","x-default":"https://vidhyamitra.com/city/aligarh/2012-01-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-23T21:32:18.885Z","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":"2026-09-23T21:32:18.885Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-23T21:32:18.885Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}