|
* * * * * C/2017 E4 (Lovejoy) * * * * *
Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2017 4 26.15 S 10.8 TK 20.3T 67 1.5 1 330 BIV 2017 4 23.13 S 10.4 TK 40.7L 72 1.0 1 BIV 2017 4 22.14 S 9.7:TK 40.7L 72 1.0 2 BIV 2017 4 21.16 S 9.2 TK 20.3T 100 3 2/ 0.2 320 GON Puerto de Aralla, León (No observable central condensation. The comet shows a significant fading and lower DC in comparison with my previous Apr. 7.17 observation. Altitude 12°. Some moonlight interference.) 2017 4 19.14 S 10.2 TK 40.7L 72 2.0 2 0.15 320 BIV 2017 4 7.17 M 7.1 TK 5.0B 10 5 7 GON Puerto de Aralla, León (Altitude 17°. In 20-cm SCT at77x, ion tail 0.6-deg in p.a. 280 deg.) 2017 4 7.15 S 7.1 HV 5.0B 7 4 7 BIV 2017 4 7.15 S 7.2 HV 40.7L 72 3 7 0.33 290 BIV 2017 4 6.15 S 7.2 HV 5.0B 7 4 7 BIV 2017 4 6.15 S 7.1 HV 40.7L 72 4 7 0.4 285 BIV 2017 4 5.79 M 7.4 TK 5.0B 7 8.4 6 WYA Walcha, NSW (Interference by twilight. Low altitude 6.8°. Coma diffuse with stellar centre.) 2017 4 5.36 M 6.5 TK 10.0B 20 5 5 GOI Araçatuba (Civil twilight, Sun altitude -11°, comet altitude 16°.) 2017 4 5.125 S 6.9 TK 8.0B 15 4 7 DIJ Burlage 2017 4 4.36 M 6.3 TK 10.0B 20 6 5 GOI Araçatuba (Civil twilight, Sun altitude -11°.) 2017 4 4.16 M 6.9 TK 5.0B 10 4 7 GON Puerto de Aralla, León (Altitude 14°. In 20cm SCT at 77x, ion tail 0.9-deg in p.a. 270 deg.) 2017 4 4.14 S 6.5 TK 8.0B 15 & 6 7 SCH Eerbeek (Slightly hazy, start of twilight.) 2017 4 4.128 S 7.3 TK 8.0B 15 4 7 DIJ Burlage 2017 4 4.124 M 6.7 HI 8.0B 15 5 7/ 0.4 280 BOU Sint Annen (Very faint gas tail visible. Altitude 15°.) 2017 4 3.17 S 7.3 HV 40.7L 72 4 7 0.2 270 BIV 2017 4 3.16 S 7.1 HV 5.0B 7 5 5 BIV 2017 4 2.16 S 6.6 TK 8.0B 15 6 5 DeS Beert 2017 4 1.76 M 7.3 TK 5.0B 7 8.3 6 WYA Walcha, NSW (Coma shows bright inner coma with stellar centre, diffuse outer coma. Enhances well in Swan Band filter. Low altitude 10.1°.) 2017 4 1.17 M 7.4 TK 5.0B 10 5 7 GON Candanedo de Fenar, León (Altitude 14°.) 2017 4 1.133 M 7.2 TK 8.0B 15 & 5 5 BOU Sint Annen (Altitude 13.8°. Some haze and ground fog.) 2017 3 31.16 S 7.3 HV 40.7L 72 6 7 0.4 265 BIV 2017 3 31.16 S 7.3 HV 5.0B 7 5 5 BIV 2017 3 30.76 B 6.8 AA 10.0B 25 4.0 5 SEA Cowra, NSW (Remarkable increase in brightness since previous observation. Moderately enhanced using Swan Band filter. Possible elongation of central condensation.) 2017 3 30.34 M 7.1 TK 5.0B 7 8 6 GOI Araçatuba 2017 3 30.34 M 7.2 TK 10.0B 20 6 6/ 0.2 270 GOI Araçatuba 2017 3 30.17 S 7.4 HV 40.7L 72 5 5 0.2 270 BIV 2017 3 30.17 S 7.5 HV 5.0B 7 7 6 BIV 2017 3 29.34 M 7.2 TK 5.0B 7 8 7 GOI Araçatuba 2017 3 29.34 M 7.3 TK 10.0B 20 6 7 0.2 280 GOI Araçatuba 2017 3 29.18 S 7.2 HV 5.0B 7 5 5 BIV 2017 3 29.16 S 7.3 HV 40.7L 72 6 6 BIV 2017 3 28.18 M 7.9 TK 5.0B 10 5 6/ GON Collado del Fresno, Asturias (Altitude 14°.) 2017 3 28.17 M 8.1 TK 20.3T 77 5 6 GON Collado del Fresno, Asturias 2017 3 28.142 S 7.6 TA 15.5L 29 4.5 8 DIJ Burlage 2017 3 28.140 M 7.8 TA 15.5L 29 3.5 5/ BOU Burlage, Germany (Surprisingly bright and easy to see. Altitude comet 10.5° with Sun at -16.8°.) 2017 3 27.77 S 8.5 TK 8.0B 20 4.0 3 CAM Warners Bay, NSW 2017 3 27.75 S 9.0 AA 10.0B 25 3.0 SEA Cowra, NSW (Small and compact coma, moderately enhanced using Swan Band filter.) 2017 3 27.73 M 9.1 TK 25.0L 39 2.4 6 WYA Walcha, NSW (Coma enhances in Swan Band filter, faint stellar central condensation. Low altitude 13.9°.) 2017 3 26.76 S 8.6 TK 40.6L 76 4.0 4 CAM Warners Bay, NSW 2017 3 25.34 S 9.3 TK 22.0L 60 5 4/ GOI Araçatuba (Enhanced image with Swan band filter.) 2017 3 20.21 S 8.6 TK 20.3T 100 4.5 3 GON Puerto de Aralla, León (Significantly brighter than expected. Wide and diffuse coma. Followed for 40 min. Motion obvious. Some moonlight interference [phase 0.54]. Altitude 13°. Limiting star magnitude near comet 12.5 [AQ]. Field stars checked in DSS.)