{"id":"vidhyamitra:city-day:durgapur:2026-02-09:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/durgapur/2026-02-09","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2026-02-09","date_display":"February 9, 2026 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":2026,"month":2,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461080.770833,"kali_year":5127,"ahargana":1872615.2708,"sun":{"sidereal_longitude":296.0759,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":200.5029,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":264.427,"elapsed_within_tithi_degrees":0.427},"nakshatra":{"number":16,"name":"Viśākhā","pada":1,"moon_longitude":200.5029,"elapsed_within_degrees":0.5029},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":136.5788},"karana":{"half_tithi_index":44,"name":"Bālava"},"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":2026,"month":2,"day":9,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461080.770833,"ahargana":1872615.2708,"kali_year":5127,"ayanamsa_lahiri":24.2177,"grahas":{"sun":{"sidereal_longitude":296.07077400000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":200.757974,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false,"latitude":-3.9223},"mars":{"sidereal_longitude":288.416374,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":309.04567399999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":82.16117400000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":true},"venus":{"sidereal_longitude":303.693274,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":335.334574,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":319.8313,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":139.8313,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"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":2026,"month":2,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461080.770833,"kali_year":5127,"ahargana":1872615.2708,"sun":{"sidereal_longitude":296.0759,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":200.5029,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":264.427,"elapsed_within_tithi_degrees":0.427},"nakshatra":{"number":16,"name":"Viśākhā","pada":1,"moon_longitude":200.5029,"elapsed_within_degrees":0.5029},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":136.5788},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.922,"elongation":95.573},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.922,"opposition_distance":84.427}},"eclipse_window_40days":[]},"city":{"slug":"durgapur","name":"Durgapur, West Bengal","lat":23.5204,"lon":87.3119,"tz_offset_hours":5.5,"state":"West Bengal","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"durgapur","name":"Durgapur, West Bengal","lat":23.5204,"lon":87.3119,"tz_offset_hours":5.5,"state":"West Bengal","country":"IN","tier":"tier-1"},"sunriseLocal":"06:18","sunsetLocal":"17:33","solarNoonLocal":"11:55","dayLengthHours":11.250417801811462,"dayLengthDisplay":"11 Hours 15 Mins 02 Secs","nightLengthDisplay":"12 Hours 44 Mins 58 Secs","moonriseLocal":"00:01","moonsetLocal":"11:07","rahuKala":{"name":"Rāhu Kāla","start":"07:42","end":"09:06","startHours":7.702021819697231,"endHours":9.108324044923664,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:31","end":"11:55","startHours":10.514626270150096,"endHours":11.920928495376529,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:20","end":"14:44","startHours":13.327230720602962,"endHours":14.733532945829396,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:18","startHours":8.92081708156014,"endHours":9.29583100828719,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:46","end":"07:04","startHours":6.76448700287961,"endHours":7.06449814426125,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:33","end":"12:18","startHours":11.545914568649483,"endHours":12.295942422103579,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:48","end":"05:33","startHours":4.795663887562604,"endHours":5.545691741016701,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:21","end":"06:18","startHours":5.358184777653177,"endHours":6.295719594470799,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:48","end":"14:33","startHours":13.795998129011775,"endHours":14.546025982465872,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:21","end":"17:45","startHours":17.346137396282263,"endHours":17.74613739628226,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:33","end":"18:01","startHours":17.546137396282262,"endHours":18.014904804691074,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:18","end":"19:03","startHours":17.296137396282262,"endHours":19.046137396282262,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:33","end":"00:18","startHours":23.54591456864948,"endHours":24.29594242210358,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:18","end":"07:42","startHours":6.295719594470799,"endHours":7.702021819697231,"quality":"auspicious"},{"name":"Kāla","start":"07:42","end":"09:06","startHours":7.702021819697231,"endHours":9.108324044923664,"quality":"inauspicious"},{"name":"Śubha","start":"09:06","end":"10:31","startHours":9.108324044923664,"endHours":10.514626270150096,"quality":"auspicious"},{"name":"Roga","start":"10:31","end":"11:55","startHours":10.514626270150096,"endHours":11.920928495376529,"quality":"inauspicious"},{"name":"Udveg","start":"11:55","end":"13:20","startHours":11.920928495376529,"endHours":13.327230720602962,"quality":"inauspicious"},{"name":"Chala","start":"13:20","end":"14:44","startHours":13.327230720602962,"endHours":14.733532945829396,"quality":"neutral"},{"name":"Labha","start":"14:44","end":"16:08","startHours":14.733532945829396,"endHours":16.13983517105583,"quality":"auspicious"},{"name":"Amṛta","start":"16:08","end":"17:33","startHours":16.13983517105583,"endHours":17.546137396282262,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:33","end":"19:08","startHours":17.546137396282262,"endHours":19.13983517105583,"quality":"neutral"},{"name":"Labha","start":"19:08","end":"20:44","startHours":19.13983517105583,"endHours":20.733532945829396,"quality":"auspicious"},{"name":"Amṛta","start":"20:44","end":"22:20","startHours":20.733532945829396,"endHours":22.327230720602962,"quality":"auspicious"},{"name":"Kāla","start":"22:20","end":"23:55","startHours":22.327230720602962,"endHours":23.92092849537653,"quality":"inauspicious"},{"name":"Śubha","start":"23:55","end":"01:31","startHours":23.92092849537653,"endHours":25.514626270150096,"quality":"auspicious"},{"name":"Roga","start":"01:31","end":"03:06","startHours":25.514626270150096,"endHours":27.108324044923666,"quality":"inauspicious"},{"name":"Udveg","start":"03:06","end":"04:42","startHours":27.108324044923666,"endHours":28.702021819697233,"quality":"inauspicious"},{"name":"Chala","start":"04:42","end":"06:18","startHours":28.702021819697233,"endHours":30.2957195944708,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:18","end":"07:18","startHours":6.295719594470799,"endHours":7.295719594470799,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:18","end":"08:18","startHours":7.295719594470799,"endHours":8.2957195944708,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:18","end":"09:18","startHours":8.2957195944708,"endHours":9.2957195944708,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:18","end":"10:18","startHours":9.2957195944708,"endHours":10.2957195944708,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:18","end":"11:18","startHours":10.2957195944708,"endHours":11.2957195944708,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:18","end":"12:18","startHours":11.2957195944708,"endHours":12.2957195944708,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:18","end":"13:18","startHours":12.2957195944708,"endHours":13.2957195944708,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:18","end":"14:18","startHours":13.2957195944708,"endHours":14.2957195944708,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:18","end":"15:18","startHours":14.2957195944708,"endHours":15.2957195944708,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:18","end":"16:18","startHours":15.2957195944708,"endHours":16.2957195944708,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:18","end":"17:18","startHours":16.2957195944708,"endHours":17.2957195944708,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:18","end":"18:18","startHours":17.2957195944708,"endHours":18.2957195944708,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:18","end":"19:18","startHours":18.2957195944708,"endHours":19.2957195944708,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:18","end":"20:18","startHours":19.2957195944708,"endHours":20.2957195944708,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:18","end":"21:18","startHours":20.2957195944708,"endHours":21.2957195944708,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:18","end":"22:18","startHours":21.2957195944708,"endHours":22.2957195944708,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:18","end":"23:18","startHours":22.2957195944708,"endHours":23.2957195944708,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:18","end":"00:18","startHours":23.2957195944708,"endHours":24.2957195944708,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:18","end":"01:18","startHours":24.2957195944708,"endHours":25.2957195944708,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:18","end":"02:18","startHours":25.2957195944708,"endHours":26.2957195944708,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:18","end":"03:18","startHours":26.2957195944708,"endHours":27.2957195944708,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:18","end":"04:18","startHours":27.2957195944708,"endHours":28.2957195944708,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:18","end":"05:18","startHours":28.2957195944708,"endHours":29.2957195944708,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:18","end":"06:18","startHours":29.2957195944708,"endHours":30.2957195944708,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"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":"North-East","anandadiYoga":{"name":"Śubha","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":-14.72146215835084,"eotMinutes":-14.503309722591807,"ayanamsa":24.2177}},"calendars":{"vikram_samvat":2083,"vikram_samvatsara":"Siddhārthī","saka_samvat":1948,"saka_samvatsara":"Parābhava","bengali_samvat":1433,"malayalam_era":1202,"nanakshahi_year":557,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","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":"Phālguna Kṛṣṇa Aṣṭamī · Vikram 2083 Siddhārthī · Śaka 1948 Parābhava"},"festivals":[{"id":"sitashtami","name":"Sītāṣṭamī","name_sanskrit":"सीताष्टमी","tradition":"Vaishnava","associated_deity":"Sītā Devī","significance":"Birth-anniversary of Sītā per Phālguna-Kṛṣṇa-Aṣṭamī tradition.","vrata":true,"detection":{"tithi_number":23,"tithi_paksha":"Kṛṣṇa","lunar_month":"Phālguna"},"precedence":3}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7, 6.34-35.","step_count":5,"url":"/walk/chandra-walk","steps":[{"label":"BG 6.5","url":"/bhagavad-gita/6/5","purpose":"Lift the self by the Self; begin the walk with inner responsibility."},{"label":"BG 6.6","url":"/bhagavad-gita/6/6","purpose":"See the mind as friend when mastered and enemy when unmastered."},{"label":"BG 6.7","url":"/bhagavad-gita/6/7","purpose":"Stabilize the conquered mind in heat/cold, honor/dishonor, pleasure/pain."},{"label":"BG 6.34","url":"/bhagavad-gita/6/34","purpose":"Name the restless mind honestly before trying to discipline it."},{"label":"BG 6.35","url":"/bhagavad-gita/6/35","purpose":"Complete with abhyāsa and vairāgya: practice and detachment."}]},"reason":"Dedicated festival walk for Sītāṣṭamī is not live yet; Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"durgapur"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 9, 2026 CE · Durgapur, West Bengal · Vidhyamitra","description":"February 9, 2026 CE for Durgapur, West Bengal: Kṛṣṇa Aṣṭamī, sūryodaya 06:18, sūryāsta 17:33.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/durgapur/2026-02-09","hreflang_alternates":{"en":"https://vidhyamitra.com/city/durgapur/2026-02-09","sa":"https://sa.vidhyamitra.com/city/durgapur/2026-02-09","hi":"https://hi.vidhyamitra.com/city/durgapur/2026-02-09","x-default":"https://vidhyamitra.com/city/durgapur/2026-02-09"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-07-23T17:19:34.147Z","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":"2026-07-23T17:19:34.147Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-07-23T17:19:34.147Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no founder-city is the universal center.","purna_chain":["Goloka/Vraja Rādhā-Krishna","Vaikuṇṭha Lakṣmī-Nārāyaṇa","Mahāviṣṇu/Kāraṇodakaśāyī Viṣṇu","Garbhodakaśāyī Viṣṇu","Brahmā","Kṣīrodaka Paramātmā/Antaryāmī (Kṣīrodakaśāyī Viṣṇu)","Bhūmi","reader's own kṣetra anywhere on Bhūmi","exact reading kṣetra","Divyāṁśa-bhakta","chitta/vāṇī/aṅgulī","keyboard-silicon-pathways","Vidhyāmitra substrate","reader/seer","Krishna"],"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"}}}