{"id":"vidhyamitra:city-day:jamnagar:2081-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/jamnagar/2081-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2081-02-01","date_display":"February 1, 2081 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":2081,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2481161.770833,"kali_year":5182,"ahargana":1892696.2708,"sun":{"sidereal_longitude":287.6781,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":196.5497,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":268.8717,"elapsed_within_tithi_degrees":4.8717},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":196.5497,"elapsed_within_degrees":9.8831},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":124.2278},"karana":{"half_tithi_index":44,"name":"Bālava"},"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":2081,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2481161.770833,"ahargana":1892696.2708,"kali_year":5182,"ayanamsa_lahiri":24.9857,"grahas":{"sun":{"sidereal_longitude":287.85273200000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":200.01203199999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false,"latitude":-2.9331},"mars":{"sidereal_longitude":345.128332,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":274.54983200000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":303.57603199999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":325.54793199999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":true},"saturn":{"sidereal_longitude":291.86583199999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":335.8433,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":155.8433,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara 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":"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":2081,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2481161.770833,"kali_year":5182,"ahargana":1892696.2708,"sun":{"sidereal_longitude":287.6781,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":196.5497,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":268.8717,"elapsed_within_tithi_degrees":4.8717},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":196.5497,"elapsed_within_degrees":9.8831},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":124.2278},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.933,"elongation":91.128},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.933,"opposition_distance":88.872}},"eclipse_window_40days":[]},"city":{"slug":"jamnagar","name":"Jamnagar, Gujarat","lat":22.4707,"lon":70.0577,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"jamnagar","name":"Jamnagar, Gujarat","lat":22.4707,"lon":70.0577,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"sunriseLocal":"07:29","sunsetLocal":"18:38","solarNoonLocal":"13:03","dayLengthHours":11.160537674530284,"dayLengthDisplay":"11 Hours 09 Mins 38 Secs","nightLengthDisplay":"12 Hours 50 Mins 22 Secs","moonriseLocal":"01:37","moonsetLocal":"12:47","rahuKala":{"name":"Rāhu Kāla","start":"10:16","end":"11:40","startHours":10.267508049990688,"endHours":11.662575259306974,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:27","end":"15:51","startHours":14.452709677939545,"endHours":15.847776887255831,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:29","end":"08:52","startHours":7.477373631358118,"endHours":8.872440840674404,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"10:05","end":"10:27","startHours":10.081499088748517,"endHours":10.45351701123286,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:57","end":"08:14","startHours":7.942396034463546,"endHours":8.240010372451021,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:41","end":"13:26","startHours":12.685624546138918,"endHours":13.429660391107603,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:59","end":"06:44","startHours":5.989301941420747,"endHours":6.733337786389432,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:33","end":"07:29","startHours":6.547328825147261,"endHours":7.477373631358118,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:55","end":"15:40","startHours":14.917732081044974,"endHours":15.66176792601366,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:26","end":"18:50","startHours":18.437911305888402,"endHours":18.8379113058884,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:38","end":"19:06","startHours":18.6379113058884,"endHours":19.10293370899383,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:23","end":"20:08","startHours":18.3879113058884,"endHours":20.1379113058884,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:41","end":"01:26","startHours":24.685624546138918,"endHours":25.429660391107603,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:29","end":"08:52","startHours":7.477373631358118,"endHours":8.872440840674404,"quality":"inauspicious"},{"name":"Śubha","start":"08:52","end":"10:16","startHours":8.872440840674404,"endHours":10.267508049990688,"quality":"auspicious"},{"name":"Roga","start":"10:16","end":"11:40","startHours":10.267508049990688,"endHours":11.662575259306974,"quality":"inauspicious"},{"name":"Udveg","start":"11:40","end":"13:03","startHours":11.662575259306974,"endHours":13.05764246862326,"quality":"inauspicious"},{"name":"Chala","start":"13:03","end":"14:27","startHours":13.05764246862326,"endHours":14.452709677939545,"quality":"neutral"},{"name":"Labha","start":"14:27","end":"15:51","startHours":14.452709677939545,"endHours":15.847776887255831,"quality":"auspicious"},{"name":"Amṛta","start":"15:51","end":"17:15","startHours":15.847776887255831,"endHours":17.242844096572114,"quality":"auspicious"},{"name":"Kāla","start":"17:15","end":"18:38","startHours":17.242844096572114,"endHours":18.6379113058884,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:38","end":"20:15","startHours":18.6379113058884,"endHours":20.242844096572117,"quality":"auspicious"},{"name":"Amṛta","start":"20:15","end":"21:51","startHours":20.242844096572117,"endHours":21.84777688725583,"quality":"auspicious"},{"name":"Kāla","start":"21:51","end":"23:27","startHours":21.84777688725583,"endHours":23.452709677939545,"quality":"inauspicious"},{"name":"Śubha","start":"23:27","end":"01:03","startHours":23.452709677939545,"endHours":25.05764246862326,"quality":"auspicious"},{"name":"Roga","start":"01:03","end":"02:40","startHours":25.05764246862326,"endHours":26.662575259306976,"quality":"inauspicious"},{"name":"Udveg","start":"02:40","end":"04:16","startHours":26.662575259306976,"endHours":28.26750804999069,"quality":"inauspicious"},{"name":"Chala","start":"04:16","end":"05:52","startHours":28.26750804999069,"endHours":29.872440840674404,"quality":"neutral"},{"name":"Labha","start":"05:52","end":"07:29","startHours":29.872440840674404,"endHours":31.47737363135812,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:29","end":"08:29","startHours":7.477373631358118,"endHours":8.477373631358118,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:29","end":"09:29","startHours":8.477373631358118,"endHours":9.477373631358118,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:29","end":"10:29","startHours":9.477373631358118,"endHours":10.477373631358118,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:29","end":"11:29","startHours":10.477373631358118,"endHours":11.477373631358118,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:29","end":"12:29","startHours":11.477373631358118,"endHours":12.477373631358118,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:29","end":"13:29","startHours":12.477373631358118,"endHours":13.477373631358118,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:29","end":"14:29","startHours":13.477373631358118,"endHours":14.477373631358118,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:29","end":"15:29","startHours":14.477373631358118,"endHours":15.477373631358118,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:29","end":"16:29","startHours":15.477373631358118,"endHours":16.47737363135812,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:29","end":"17:29","startHours":16.47737363135812,"endHours":17.47737363135812,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:29","end":"18:29","startHours":17.47737363135812,"endHours":18.47737363135812,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:29","end":"19:29","startHours":18.47737363135812,"endHours":19.47737363135812,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:29","end":"20:29","startHours":19.47737363135812,"endHours":20.47737363135812,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:29","end":"21:29","startHours":20.47737363135812,"endHours":21.47737363135812,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:29","end":"22:29","startHours":21.47737363135812,"endHours":22.47737363135812,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:29","end":"23:29","startHours":22.47737363135812,"endHours":23.47737363135812,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:29","end":"00:29","startHours":23.47737363135812,"endHours":24.47737363135812,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:29","end":"01:29","startHours":24.47737363135812,"endHours":25.47737363135812,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:29","end":"02:29","startHours":25.47737363135812,"endHours":26.47737363135812,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:29","end":"03:29","startHours":26.47737363135812,"endHours":27.47737363135812,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:29","end":"04:29","startHours":27.47737363135812,"endHours":28.47737363135812,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:29","end":"05:29","startHours":28.47737363135812,"endHours":29.47737363135812,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:29","end":"06:29","startHours":29.47737363135812,"endHours":30.47737363135812,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:29","end":"07:29","startHours":30.47737363135812,"endHours":31.47737363135812,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"East","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-16.956576547920825,"eotMinutes":-13.689348117395623,"ayanamsa":24.9857}},"calendars":{"vikram_samvat":2138,"vikram_samvatsara":"Ānanda","saka_samvat":2003,"saka_samvatsara":"Plava","bengali_samvat":1488,"malayalam_era":1257,"nanakshahi_year":612,"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 Aṣṭamī · Vikram 2138 Ānanda · Śaka 2003 Plava"},"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":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"jamnagar"},"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, 2081 CE · Jamnagar, Gujarat · Vidhyamitra","description":"February 1, 2081 CE for Jamnagar, Gujarat: Kṛṣṇa Aṣṭamī, sūryodaya 07:29, sūryāsta 18:38.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/jamnagar/2081-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/jamnagar/2081-02-01","sa":"https://sa.vidhyamitra.com/city/jamnagar/2081-02-01","hi":"https://hi.vidhyamitra.com/city/jamnagar/2081-02-01","x-default":"https://vidhyamitra.com/city/jamnagar/2081-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T17:57:55.219Z","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":"2026-06-02T17:57:55.219Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T17:57:55.219Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}