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* * * * * C/2007 F1 (LONEOS) * * * * *
Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2007 11 14.42 S 8.1 AA 10.0B 25 SEA Cowra, NSW 2007 11 13.42 S 7.9 AA 10.0B 25 SEA Cowra, NSW 2007 11 12.42 B 7.6 AA 10.0B 25 3 7 SEA Cowra, NSW 2007 11 10.43 B 7.2 AA 10.0B 25 0.3 112 SEA Cowra, NSW (Comet and tail dramatically fainter than previous evening. In 25.4-cmL at 71x and 114x, no definite cc but the brighter centre of coma may have been slightly elongated perpendicular to axis of tail. Appeared to be a slighter brighter "spine" in tail.) 2007 11 9.44 S 6.3 AA 3.0B 3 SEA Cowra, NSW 2007 11 9.43 B 6.2 AA 10.0B 25 2 8 2.0 115 SEA Cowra, NSW (Comet in outburst! Tail distinct and impressive; first 40' very obvious.) 2007 11 7.42 7.4 10.0B 25 3 6 MAT Castlemaine, VIC 2007 11 6.42 B 6.4 AA 10.0B 25 SEA Cowra, NSW (Tail very faint and indefinite. Comet somewhat brighter with Swan band filter.) 2007 11 6.42 6.7 10.0B 25 3 6 MAT Castlemaine, VIC 2007 11 5.42 6.0 10.0B 25 3 7 MAT Castlemaine, VIC 2007 10 27.78 $M 5.2 TK 5.0B 10 1.5 8 GON Alto del Castro - Aralla, León (Mountain location, very clear sky. Astronomical twilight. Moonlight. Magnitude estimate corrected for atmospheric extinction with ICQ average table. Altitude: 6 deg.) 2007 10 25.78 M 5.3 TK 5.0B 10 1.5 8 0.2 30 GON Alto del Trichero, León (Mountain location, clear sky. Astronomical twilight. Moonlight. Altitude: 6 deg.) 2007 10 24.79 M 5.6 TK 5.0B 10 2 8 GON Alto del Trichero, León (Moonlight. Altitude: 5 deg.) 2007 10 23.76 S 5.5 HV 5.0B 7 3 6 BIV Versailles 2007 10 23.76 S 5.5 HV 25.6L 42 2.5 7 0.3 20 BIV Versailles 2007 10 23.751 M 5.5:TK 8.0B 15 8 BOU Wierum (Moonlight. Brief observation through well placed gap in drifting cloud.) 2007 10 23.743 S 6.1 TK 10.0B 14 1.5 8 LOO Genk 2007 10 22.744 M 5.6 TK 8.0B 15 2.5 8 BOU Zuidwolde 2007 10 22.743 M 5.6 TK 6.0B 15 4 5/ DIJ Noorddijk 2007 10 21.75 S 5.6 HV 5.0B 7 3 7 BIV Versailles 2007 10 21.75 S 5.7 HV 25.6L 42 2.0 6 0.5 15 BIV Versailles 2007 10 21.68 M 5.7 HI 5.0B 7 3 8 NOV Kondopoga 2007 10 20.79 M 5.9 TK 5.0B 10 2 8 GON Alto del Castro - Aralla, León (Moonlight. Altitude: 7 deg.) 2007 10 20.76 S 5.4 HV 40.7L 58 2.0 6 0.3 5 BIV Versailles 2007 10 20.75 S 5.4 HV 5.0B 7 3 6 BIV Versailles 2007 10 20.68 M 5.7 HI 5.0B 7 5 5 NOV Konchezero 2007 10 19.80 M 6.2 TK 10.0B 25 2 7 0.8 10 GON Alto del Castro - Aralla, León (Mountain location, very clear sky. Moonlight. Altitude: 7 deg.) 2007 10 19.79 M 6.1 TK 5.0B 10 2 8 GON Alto del Castro - Aralla, León 2007 10 19.752 M 5.8 TK 6.0B 15 3 6 DIJ Noorddijk 2007 10 19.743 S 6.5 TK 10.0B 14 1.5 8 LOO Genk 2007 10 18.773 S 5.7 TK 5.0B 7 6 DIJ Noorddijk 2007 10 18.75 B 5.7:HV 5.0B 7 3 7 BIV Versailles 2007 10 18.75 S 6.3 HV 40.7L 58 2.0 6 0.2 5 BIV Versailles 2007 10 18.743 S 7.0 TK 10.0B 14 1 8 LOO Genk 2007 10 18.74 M 6.1 TK 5.0B 7 3 6 GRA Kalbakken, Oslo (Only faintly seen due to twilight [solar alt. about -13 deg.] and light pollution. Observed from my work location.) 2007 10 17.80 !M 6.1 TK 5.0B 7 4 6 GRA Tryvann, Oslo (Well visible as a diffuse star despite a true altitude of only 4.3 deg.) 2007 10 17.749 M 6.3 TK 8.0B 15 3.5 7/ BOU Zuidwolde 2007 10 17.740 S 7.0 TK 10.0B 14 1 8 LOO Genk 2007 10 16.78 B 6.7 HV 5.0B 7 2 7 BIV Versailles 2007 10 16.77 S 6.7 HV 25.6L 42 2.0 7 0.3 0 BIV Versailles 2007 10 16.76 !M 6.2 TK 5.0B 7 5 6/ GRA Råholt, Eidsvoll (Comet quite easily seen due to a dark sky background. Apparent brightess of coma was similar to M3, tail was not visible. Altitude 10 deg., solar altitude -17 deg.) 2007 10 14.81 M 6.8 TK 10.0B 25 3 7 1.0 350 GON Alto del Castro - Aralla, León (Altitude: 6 deg.) 2007 10 14.80 M 6.5 TK 5.0B 10 3 7 GON Alto del Castro - Aralla, León 2007 10 14.79 S 6.9 HV 25.6L 42 2.0 7 0.3 345 BIV Versailles 2007 10 14.78 B 6.8 HV 5.0B 7 3 7 BIV Versailles 2007 10 14.763 M 6.5 TK 8.0B 15 3.5 7/ 0.5 350 BOU Lauwersoog 2007 10 14.762 M 6.5 TK 6.0B 15 8 6 DIJ Afsluitdijk (Onset of tail visible in p.a. 350 deg.) 2007 10 14.08 M 6.2 TK 5.0B 7 4 6 NOV Kondopoga (Small city light pollution, Alt. 11 deg.) 2007 10 13.81 M 6.8 TK 10.0B 25 3 7 1.1 350 GON Alto del Castro - Aralla, León (Altitude: 7 deg.) 2007 10 13.80 M 6.6 TK 5.0B 10 3 7 GON Alto del Castro - Aralla, León 2007 10 13.768 M 6.4 TK 15.6L 29 3 6 DIJ Sint Annen 2007 10 13.766 M 6.5 TK 15.6L 29 4 7 BOU Sint Annen 2007 10 12.69 M 6.4 TK 5.0B 7 7 5 NOV Kondopoga (Small city light pollution. Alt. 15 deg.) 2007 10 12.21 M 6.9 TK 10.0B 25 3 7 0.2 345 GON Alto del Trichero - Soto y Amío, León 2007 10 12.20 M 6.7 TK 5.0B 10 3 7 GON Alto del Trichero - Soto y Amío, León (Mountain location, very clear sky. Zodiacal light. Altitude: 7 deg.) 2007 10 11.181 M 6.5 TK 6.0B 15 6 5 DIJ Noorddijk 2007 10 10.80 M 6.5 TK 5.0B 7 4 6 GRA Østernvannet (Comet still somewhat fainter than M3, although the globular cluster was seen at a higher altitude [7 deg versus 14 deg]. Some interference from high clouds. Observed from lake Østernvannet, Bærum, near Oslo, Norway.) 2007 10 10.68 M 6.5:TK 5.0B 7 5 5 NOV Kondopoga 2007 10 10.17 M 6.5 TK 5.0B 7 4 5 GRA Fjellhamar (Altitude 17 deg, solar altitude -13 deg.) 2007 10 7.78 M 6.9 TK 5.0B 7 4 5 GRA Fjellhamar 2007 10 7.78 M 6.9 TK 10.0R 25 4 6 GRA Fjellhamar (With 10.0-cm R, the comet showed a diffuse and blue-green coma with an apparently stellar central condensation of mag. 9.2 [ref. TK]; the coma appeared smaller and somewhat fainter than M3; no tail was seen. The comet was also fairly easily seen through 7x50B.) 2007 10 7.778 M 6.7:TK 15.6L 29 6 DIJ Sint Annen 2007 10 7.776 S 6.8:TK 15.6L 29 5 BOU Sint Annen (Briefly but clearly seen before the comet sank in hazy murk near the horizon.) 2007 10 7.767 S 7.3 TK 5.0B 10 2.0 8 LOO Vielsalm 2007 10 6.83 S 7.4 TJ 40.0L 36 4 5 YOS Kita-karuizawa, Gunma (It was much harder to see than the previous day. So I wondered if the comet became diffuse and faded rapidly. But I guess it was due to the sky condition.) 2007 10 6.16 B 7.3 TK 5.0B 12 3 GRA Fjellhamar 2007 10 6.16 M 7.2 TK 10.0R 25 3 6 GRA Fjellhamar 2007 10 5.83 S 7.5 TJ 40.0L 36 3 6/ YOS Kita-karuizawa, Gunma (Very bright! Extremely low. I waited until it became high, and I observed it after the morning glow began. The comet looked very small, probably because the sky was already very bright. I was surprised that it looked very strongly condensed and easy to see.) 2007 10 5.20 S 6.9 TK 5.0B 10 6 5 GON Alto del Trichero - Soto y Amío, León 2007 10 5.19 S 7.2 TK 10.0B 25 6 5 GON Alto del Trichero - Soto y Amío, León (Mountain location, very clear sky. Zodiacal light. Altitude: 8 deg.) 2007 10 5.163 S 8.0 TK 5.0B 10 2.5 7 LOO Genk 2007 10 4.811 S 7.3:TK 15.6L 29 4 5 DIJ Sint Annen 2007 10 4.803 S 7.3 TK 15.6L 29 & 4 6 BOU Sint Annen 2007 10 2.787 M 7.6 TK 15.6L 29 5 5 BOU Sint Annen 2007 10 2.779 S 7.8 TK 15.6L 29 3 5 DIJ Sint Annen 2007 9 23.20 S 8.7 TK 10.0B 25 4 5 GON Alto del Castro - Aralla, León 2007 9 23.19 S 8.9 TK 20.3T 77 3.0 5 GON Alto del Castro - Aralla, León (Mountain location, very clear sky, astronomical twilight; Altitude: 7 deg.) 2007 9 20.20 S 9.3 TK 20.3T 77 2.5 5 GON Alto del Castro - Aralla, León (Mountain location, very clear sky, astronomical twilight; Altitude: 6 deg.) 2007 9 15.20 S[10.0 TK 20.3T 77 !1.0 GON Alto del Trichero - Soto y Amío, León (Comet not observed. Astronomical twilight, altitude: 5 deg. Mountain location, very clear sky, latitude: 43 deg.)