{"id":"vidhyamitra:city-day:ujjain:-0504-02-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ujjain/-0504-02-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"-0504-02-13","date_display":"February 13, 505 BCE","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":-504,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":1537014.770833,"kali_year":2597,"ahargana":948549.2708,"sun":{"sidereal_longitude":334.9975,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":294.6161,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":319.6185,"elapsed_within_tithi_degrees":7.6185},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1,"moon_longitude":294.6161,"elapsed_within_degrees":1.2827},"yoga":{"number":21,"name":"Siddha","sum_longitude":269.6136},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":-504,"month":2,"day":13,"hour":6,"minute":30,"calendar":"julian"},"julian_day":1537014.770833,"ahargana":948549.2708,"kali_year":2597,"ayanamsa_lahiri":-11.1244,"grahas":{"sun":{"sidereal_longitude":334.9975,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":294.6161,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false,"latitude":-2.0188},"mars":{"sidereal_longitude":278.0383,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":311.1732,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":339.9535,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":322.3986,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":28.65,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":321.2949,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":141.2949,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":"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":-504,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":1537014.770833,"kali_year":2597,"ahargana":948549.2708,"sun":{"sidereal_longitude":334.9975,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":294.6161,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":319.6185,"elapsed_within_tithi_degrees":7.6185},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1,"moon_longitude":294.6161,"elapsed_within_degrees":1.2827},"yoga":{"number":21,"name":"Siddha","sum_longitude":269.6136},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.019,"elongation":40.381},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.019,"opposition_distance":139.619}},"eclipse_window_40days":[]},"city":{"slug":"ujjain","name":"Ujjain","lat":23.1765,"lon":75.7885,"tz_offset_hours":5.5,"state":"Madhya Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"ujjain","name":"Ujjain","lat":23.1765,"lon":75.7885,"tz_offset_hours":5.5,"state":"Madhya Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"07:01","sunsetLocal":"18:21","solarNoonLocal":"12:41","dayLengthHours":11.334515264872643,"dayLengthDisplay":"11 Hours 20 Mins 04 Secs","nightLengthDisplay":"12 Hours 39 Mins 56 Secs","moonriseLocal":"04:39","moonsetLocal":"15:21","rahuKala":{"name":"Rāhu Kāla","start":"11:16","end":"12:41","startHours":11.273944346234622,"endHours":12.690758754343701,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:31","end":"16:56","startHours":15.524387570561863,"endHours":16.941201978670943,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:26","end":"09:51","startHours":8.440315530016461,"endHours":9.857129938125542,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:40","end":"10:03","startHours":9.668221350377664,"endHours":10.046038525873419,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:30","end":"07:48","startHours":7.495772591277074,"endHours":7.798026331673678,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:19","end":"13:04","startHours":12.312941578847946,"endHours":13.068575929839456,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:31","end":"06:16","startHours":5.512232419924361,"endHours":6.267866770915871,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:05","end":"07:01","startHours":6.078958183167994,"endHours":7.023501121907381,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:35","end":"15:20","startHours":14.579844631822475,"endHours":15.335478982813985,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:09","end":"18:33","startHours":18.158016386780023,"endHours":18.55801638678002,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:21","end":"18:50","startHours":18.358016386780022,"endHours":18.830287856149717,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:06","end":"19:51","startHours":18.108016386780022,"endHours":19.858016386780022,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:19","end":"01:04","startHours":24.312941578847948,"endHours":25.068575929839454,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:01","end":"08:26","startHours":7.023501121907381,"endHours":8.440315530016461,"quality":"neutral"},{"name":"Labha","start":"08:26","end":"09:51","startHours":8.440315530016461,"endHours":9.857129938125542,"quality":"auspicious"},{"name":"Amṛta","start":"09:51","end":"11:16","startHours":9.857129938125542,"endHours":11.273944346234622,"quality":"auspicious"},{"name":"Kāla","start":"11:16","end":"12:41","startHours":11.273944346234622,"endHours":12.690758754343701,"quality":"inauspicious"},{"name":"Śubha","start":"12:41","end":"14:06","startHours":12.690758754343701,"endHours":14.107573162452782,"quality":"auspicious"},{"name":"Roga","start":"14:06","end":"15:31","startHours":14.107573162452782,"endHours":15.524387570561863,"quality":"inauspicious"},{"name":"Udveg","start":"15:31","end":"16:56","startHours":15.524387570561863,"endHours":16.941201978670943,"quality":"inauspicious"},{"name":"Chala","start":"16:56","end":"18:21","startHours":16.941201978670943,"endHours":18.358016386780022,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:21","end":"19:56","startHours":18.358016386780022,"endHours":19.941201978670943,"quality":"inauspicious"},{"name":"Udveg","start":"19:56","end":"21:31","startHours":19.941201978670943,"endHours":21.524387570561863,"quality":"inauspicious"},{"name":"Chala","start":"21:31","end":"23:06","startHours":21.524387570561863,"endHours":23.10757316245278,"quality":"neutral"},{"name":"Labha","start":"23:06","end":"00:41","startHours":23.10757316245278,"endHours":24.6907587543437,"quality":"auspicious"},{"name":"Amṛta","start":"00:41","end":"02:16","startHours":24.6907587543437,"endHours":26.27394434623462,"quality":"auspicious"},{"name":"Kāla","start":"02:16","end":"03:51","startHours":26.27394434623462,"endHours":27.85712993812554,"quality":"inauspicious"},{"name":"Śubha","start":"03:51","end":"05:26","startHours":27.85712993812554,"endHours":29.44031553001646,"quality":"auspicious"},{"name":"Roga","start":"05:26","end":"07:01","startHours":29.44031553001646,"endHours":31.02350112190738,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:01","end":"08:01","startHours":7.023501121907381,"endHours":8.02350112190738,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:01","end":"09:01","startHours":8.02350112190738,"endHours":9.02350112190738,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:01","end":"10:01","startHours":9.02350112190738,"endHours":10.02350112190738,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:01","end":"11:01","startHours":10.02350112190738,"endHours":11.02350112190738,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:01","end":"12:01","startHours":11.02350112190738,"endHours":12.02350112190738,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:01","end":"13:01","startHours":12.02350112190738,"endHours":13.02350112190738,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:01","end":"14:01","startHours":13.02350112190738,"endHours":14.02350112190738,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:01","end":"15:01","startHours":14.02350112190738,"endHours":15.02350112190738,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:01","end":"16:01","startHours":15.02350112190738,"endHours":16.02350112190738,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:01","end":"17:01","startHours":16.02350112190738,"endHours":17.02350112190738,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:01","end":"18:01","startHours":17.02350112190738,"endHours":18.02350112190738,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:01","end":"19:01","startHours":18.02350112190738,"endHours":19.02350112190738,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:01","end":"20:01","startHours":19.02350112190738,"endHours":20.02350112190738,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:01","end":"21:01","startHours":20.02350112190738,"endHours":21.02350112190738,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:01","end":"22:01","startHours":21.02350112190738,"endHours":22.02350112190738,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:01","end":"23:01","startHours":22.02350112190738,"endHours":23.02350112190738,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:01","end":"00:01","startHours":23.02350112190738,"endHours":24.02350112190738,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:01","end":"01:01","startHours":24.02350112190738,"endHours":25.02350112190738,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:01","end":"02:01","startHours":25.02350112190738,"endHours":26.02350112190738,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:01","end":"03:01","startHours":26.02350112190738,"endHours":27.02350112190738,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:01","end":"04:01","startHours":27.02350112190738,"endHours":28.02350112190738,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:01","end":"05:01","startHours":28.02350112190738,"endHours":29.02350112190738,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:01","end":"06:01","startHours":29.02350112190738,"endHours":30.02350112190738,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:01","end":"07:01","startHours":30.02350112190738,"endHours":31.02350112190738,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-13.561760544329722,"eotMinutes":-14.599525260622107,"ayanamsa":-11.1244}},"calendars":{"vikram_samvat":-447,"saka_samvat":-582,"bengali_samvat":-1097,"malayalam_era":-1328,"nanakshahi_year":-1973,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Kṛṣṇa Dvādaśī · Vikram -447 undefined · Śaka -582 undefined"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":true,"location_specific":"ujjain"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 13, 505 BCE · Ujjain · Vidhyamitra","description":"February 13, 505 BCE for Ujjain: Kṛṣṇa Dvādaśī, sūryodaya 07:01, sūryāsta 18:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ujjain/-0504-02-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ujjain/-0504-02-13","sa":"https://sa.vidhyamitra.com/city/ujjain/-0504-02-13","hi":"https://hi.vidhyamitra.com/city/ujjain/-0504-02-13","x-default":"https://vidhyamitra.com/city/ujjain/-0504-02-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-10T13:14:19.170Z","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":"2026-09-10T13:14:19.170Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-10T13:14:19.170Z","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"}}}