{"id":"vidhyamitra:city-day:rishikesh:1977-02-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1977-02-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1977-02-07","date_display":"February 7, 1977 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":1977,"month":2,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443181.770833,"kali_year":5078,"ahargana":1854716.2708,"sun":{"sidereal_longitude":294.7304,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":149.9864,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":215.2561,"elapsed_within_tithi_degrees":11.2561},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":149.9864,"elapsed_within_degrees":3.3198},"yoga":{"number":7,"name":"Sukarma","sum_longitude":84.7168},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"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":1977,"month":2,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2443181.770833,"ahargana":1854716.2708,"kali_year":5078,"ayanamsa_lahiri":23.5331,"grahas":{"sun":{"sidereal_longitude":294.619547,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":150.83624700000001,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false,"latitude":-2.7823},"mars":{"sidereal_longitude":274.93084699999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":271.45534699999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":28.370047,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":341.214747,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":109.55794700000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":188.2065,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":8.2065,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":1977,"month":2,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443181.770833,"kali_year":5078,"ahargana":1854716.2708,"sun":{"sidereal_longitude":294.7304,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":149.9864,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":215.2561,"elapsed_within_tithi_degrees":11.2561},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":149.9864,"elapsed_within_degrees":3.3198},"yoga":{"number":7,"name":"Sukarma","sum_longitude":84.7168},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.782,"elongation":144.744},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.782,"opposition_distance":35.256}},"eclipse_window_40days":[]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"07:04","sunsetLocal":"17:59","solarNoonLocal":"12:31","dayLengthHours":10.911333684050348,"dayLengthDisplay":"10 Hours 54 Mins 41 Secs","nightLengthDisplay":"13 Hours 05 Mins 19 Secs","moonriseLocal":"20:48","moonsetLocal":"09:04","rahuKala":{"name":"Rāhu Kāla","start":"08:26","end":"09:48","startHours":8.430037410303896,"endHours":9.793954120810191,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:09","end":"12:31","startHours":11.157870831316483,"endHours":12.521787541822778,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:53","end":"15:15","startHours":13.88570425232907,"endHours":15.249620962835365,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:37","end":"09:59","startHours":9.61209855940935,"endHours":9.975809682211029,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:31","end":"07:49","startHours":7.520759603299702,"endHours":7.811728501541045,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:53","startHours":12.1580764190211,"endHours":12.885498664624457,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:37","end":"06:20","startHours":5.6112762085908905,"endHours":6.3386984541942475,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:09","end":"07:04","startHours":6.156842892793408,"endHours":7.066120699797604,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:20","end":"15:04","startHours":14.34034315583117,"endHours":15.067765401434526,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:47","end":"18:11","startHours":17.777454383847953,"endHours":18.17745438384795,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:59","end":"18:26","startHours":17.977454383847952,"endHours":18.43209328735005,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:44","end":"19:29","startHours":17.727454383847952,"endHours":19.477454383847952,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:53","startHours":24.1580764190211,"endHours":24.885498664624457,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:04","end":"08:26","startHours":7.066120699797604,"endHours":8.430037410303896,"quality":"auspicious"},{"name":"Kāla","start":"08:26","end":"09:48","startHours":8.430037410303896,"endHours":9.793954120810191,"quality":"inauspicious"},{"name":"Śubha","start":"09:48","end":"11:09","startHours":9.793954120810191,"endHours":11.157870831316483,"quality":"auspicious"},{"name":"Roga","start":"11:09","end":"12:31","startHours":11.157870831316483,"endHours":12.521787541822778,"quality":"inauspicious"},{"name":"Udveg","start":"12:31","end":"13:53","startHours":12.521787541822778,"endHours":13.88570425232907,"quality":"inauspicious"},{"name":"Chala","start":"13:53","end":"15:15","startHours":13.88570425232907,"endHours":15.249620962835365,"quality":"neutral"},{"name":"Labha","start":"15:15","end":"16:37","startHours":15.249620962835365,"endHours":16.613537673341657,"quality":"auspicious"},{"name":"Amṛta","start":"16:37","end":"17:59","startHours":16.613537673341657,"endHours":17.977454383847952,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:59","end":"19:37","startHours":17.977454383847952,"endHours":19.61353767334166,"quality":"neutral"},{"name":"Labha","start":"19:37","end":"21:15","startHours":19.61353767334166,"endHours":21.249620962835365,"quality":"auspicious"},{"name":"Amṛta","start":"21:15","end":"22:53","startHours":21.249620962835365,"endHours":22.88570425232907,"quality":"auspicious"},{"name":"Kāla","start":"22:53","end":"00:31","startHours":22.88570425232907,"endHours":24.52178754182278,"quality":"inauspicious"},{"name":"Śubha","start":"00:31","end":"02:09","startHours":24.52178754182278,"endHours":26.157870831316487,"quality":"auspicious"},{"name":"Roga","start":"02:09","end":"03:48","startHours":26.157870831316487,"endHours":27.79395412081019,"quality":"inauspicious"},{"name":"Udveg","start":"03:48","end":"05:26","startHours":27.79395412081019,"endHours":29.430037410303896,"quality":"inauspicious"},{"name":"Chala","start":"05:26","end":"07:04","startHours":29.430037410303896,"endHours":31.066120699797604,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:04","end":"08:04","startHours":7.066120699797604,"endHours":8.066120699797604,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:04","end":"09:04","startHours":8.066120699797604,"endHours":9.066120699797604,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:04","end":"10:04","startHours":9.066120699797604,"endHours":10.066120699797604,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:04","end":"11:04","startHours":10.066120699797604,"endHours":11.066120699797604,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:04","end":"12:04","startHours":11.066120699797604,"endHours":12.066120699797604,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:04","end":"13:04","startHours":12.066120699797604,"endHours":13.066120699797604,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:04","end":"14:04","startHours":13.066120699797604,"endHours":14.066120699797604,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:04","end":"15:04","startHours":14.066120699797604,"endHours":15.066120699797604,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:04","end":"16:04","startHours":15.066120699797604,"endHours":16.066120699797604,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:04","end":"17:04","startHours":16.066120699797604,"endHours":17.066120699797604,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:04","end":"18:04","startHours":17.066120699797604,"endHours":18.066120699797604,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:04","end":"19:04","startHours":18.066120699797604,"endHours":19.066120699797604,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:04","end":"20:04","startHours":19.066120699797604,"endHours":20.066120699797604,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:04","end":"21:04","startHours":20.066120699797604,"endHours":21.066120699797604,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:04","end":"22:04","startHours":21.066120699797604,"endHours":22.066120699797604,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:04","end":"23:04","startHours":22.066120699797604,"endHours":23.066120699797604,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:04","end":"00:04","startHours":23.066120699797604,"endHours":24.066120699797604,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:04","end":"01:04","startHours":24.066120699797604,"endHours":25.066120699797604,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:04","end":"02:04","startHours":25.066120699797604,"endHours":26.066120699797604,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:04","end":"03:04","startHours":26.066120699797604,"endHours":27.066120699797604,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:04","end":"04:04","startHours":27.066120699797604,"endHours":28.066120699797604,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:04","end":"05:04","startHours":28.066120699797604,"endHours":29.066120699797604,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:04","end":"06:04","startHours":29.066120699797604,"endHours":30.066120699797604,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:04","end":"07:04","startHours":30.066120699797604,"endHours":31.066120699797604,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Utpāta","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":-15.387546245036123,"eotMinutes":-14.37765250936663,"ayanamsa":23.5331}},"calendars":{"vikram_samvat":2034,"vikram_samvatsara":"Pramoda","saka_samvat":1899,"saka_samvatsara":"Piṅgala","bengali_samvat":1384,"malayalam_era":1153,"nanakshahi_year":508,"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 Tṛtīyā · Vikram 2034 Pramoda · Śaka 1899 Piṅgala"},"festivals":[],"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":[]},"validity":{"eternal":false,"location_specific":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 7, 1977 CE · Ṛṣikeśa · Vidhyamitra","description":"February 7, 1977 CE for Ṛṣikeśa: Kṛṣṇa Tṛtīyā, sūryodaya 07:04, sūryāsta 17:59.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1977-02-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1977-02-07","sa":"https://sa.vidhyamitra.com/city/rishikesh/1977-02-07","hi":"https://hi.vidhyamitra.com/city/rishikesh/1977-02-07","x-default":"https://vidhyamitra.com/city/rishikesh/1977-02-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:52:04.278Z","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":"2026-05-31T18:52:04.278Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:52:04.278Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}