截止23日T7彗星已经增亮至6.9等！
以下是国外同好的观测报告：
C/2002 T7 (LINEAR)
Last Updated: 23 January 2004
Reported observations:
2003 Dec 17.22 UT: m1=8.4, Dia=6.0', DC=6 ...10x50B...Mike Linnolt (Mountain Springs, NV) [In-Out method. Tycho2+Bessell. Dark sky NELM~6.1 Surprising jump up in size and brightness from just 3 days ago!]
2003 Dec. 17.75 UT: m1=8.6, Dia.=3', DC=7, tail PA: 85 deg ...15cm F8 R...A.Diepvens (Balen,Belgium)
2003 Dec. 17.85 UT: m1=9.0, Dia. 4', DC=4... 16x50 B...Stephen McCann (Southampton, England)
2003 Dec. 17.86 UT:m1=8.6, Dia=6', DC=3, no tail...7x50B...Toni Scarmato (Calabria, Italy) [Comet observed under very good condition of the sky. In-Out method with 7x50B]
2003 Dec. 18.75 UT: m1=8.6, Dia.=3', DC=7, tail PA: 85 deg ...15cm F8 R ...A.Diepvens (Balen,Belgium)
2003 Dec. 18.82 UT:m1=8.5, Dia=8', DC=3, no tail...7x50B...Toni Scarmato (Calabria, Italy) [The comet seem active. In 25 cm the coma is very large and the false nucleus show some structure. Seem visible a sort of ions tail long about 5' in the same direction of the diffuse tail]
2003 Dec. 18.85 UT: m1=9.2, Dia=2',DC=4...25cm SCT (96x)...Manos Kardasis (Glyfada, Athens, Greece)
2003 Dec. 19.09 UT: m1=8.5, Dia. 9', DC=4...20x80 B...Charles S. Morris (Fillmore, California) [The comet is much brighter & larger...although I suspect that some of the coma diameter is the beginnings of the tail.]
2003 Dec 19.09 UT: m1=8.5, Dia=6.0', DC=6 ...10x50B...Mike Linnolt (Mountain Springs, NV) [In-Out method. Tycho2+Bessell. Dark sky NELM~6.2 Comet seems to be a little bit fainter than on Dec 17, so I may have witnessed a moment of outburst on 17th.]
2003 Dec. 19.70 UT:m1=8.6, Dia.=3.5', DC=5...11.0cm L (f/7.3, 32x)... Vyacheslav M. Ivanov (Saratov, Russia) [mist, clouds]
2003 Dec. 19.71 UT: m1=8.9, Dia.=4', DC=5, Tail: 5' in PA 80 deg....20.3cm L (63x)...Piotr Guzik (Krosno, Poland)
2003 Dec. 19.81 UT: m1=8.7, Dia. 5`, DC=5...10x50 B...Kolyo Dankov (Sofia,Bulgaria)
2003 Dec. 20.12 UT : m1=8.9, Dia.= 5', DC=6... 33.2 cm L (75x).....Don Pearce (Ft. Griffin,TX.)
2003 Dec 20.86 UT: m1=8.7, Dia.=3', DC=7, Tail= 6' in PA=80 deg...8cm B (11x)...Carlos Labordena(Castellon, Spain)
2003 Dec. 20.97 UT: m1=8.6, Dia.=4', DC=5...25x100B...Juan Jose Gonzalez (Grandota - Oviedo, alt. 460 m, Asturias, North Spain ) [Elongated coma; suburban sky]
2003 Dec. 21.02 UT: m1=8.5, Dia.=5', DC=5...25x100B...Juan Jose Gonzalez (Sierra del Aramo, alt. 1031 m, Asturias, North Spain) [ Dec. 21.03 UT: m1=8.6, Dia.=4', DC=5, 10 cm L (65x). Elongated coma; rural sky ]
2003 Dec 21.04 UT: m1=9.0, Dia=4', DC=5...20x80B...Jesus Guerrero (Barquisimeto, Venezuela) [Coma elongated, posible tail origin.]
2003 Dec. 21.27 UT: m1=8.3, Dia. 7', DC=4, Tail: 20'...20x80 B...Charles S. Morris (Fillmore, California) [The comet continues to brighten. The tail, which is quite faint, is obvious and confirmed by CCD images.]
2003 Dec. 21.55 UT: m1=9.3, Dia.=2.0', DC=6... 32cm L (58x)...Yoshimi Nagai (Nagano, Japan)[tail 4' in pa 80.]
2003 Dec. 22.74 UT: m1=8.5, Dia.=3', DC=7, tail PA: 90 deg ...150mm F8 Refractor,...A.Diepvens (Balen,Belgium)
2003 Dec. 22.70 UT: m1=8.7, Dia.=&5', DC=5, Tail: 5' in PA 75 deg....10x50B...Piotr Guzik (Krosno, Poland)
2003 Dec. 22.86 UT: m1=8.7, Dia=3',DC=5...15cm R (25x)...Rafael Benavides (Posadas, Cordoba, Spain) [tail 7' towards PA 80 deg]
2003 Dec. 23.53 UT: m1=9.2, Dia.=1.8', DC=6/... 32cm L (58x)...Yoshimi Nagai (Nagano, Japan)[tail 4' in pa 75.]
2003 Dec. 23.83 UT: m1=8.4, Dia.=6', DC=5, Tail: 0.1 deg. in PA 80 deg...25x100B...Juan Jose Gonzalez (Collada de la Cobertoria, alt. 1179 m,Asturias, North Spain) [Dec. 23.79 UT: m1=8.6, Dia.=4', DC=5, Tail: 0.2 deg., 10 cm L (65x)]
2003 Dec. 23.87UT: m1=8.2, Dia.=5', DC=3... 20x110B... Vitali Nevski (Vitebsk, Belarus)
2003 Dec. 23.96 UT: m1=8.8, Dia=2, DC=4,...20x80B...Alexandre Amorim(Florianopolis,Brazil)[clouds interference]
2003 Dec 23.97 UT: m1=8.4, Dia=5.0', DC=6 ...10x50B...Mike Linnolt (Greenwich, NY) [In-Out method. .Tycho2+Bessell. Dark sky NELM~6.0, in 25cmL tail 9' in pa 60.]
2003 Dec.24.65 UT: m1=8.6, Dia=1', DC=5/ ...41cm L (89x) ...Tail 4'...Sergey E. Shurpakov (Baran',Belarus)[The tail very broad and short.]
2003 Dec. 24.69 UT: m1=8.7, Dia.=5', DC=6, Tail: 15' in PA 75 deg....20.3cm L (63x)...Piotr Guzik (Krosno, Poland)[Under excellent conditions comet looks amazing: 2' coma is elongated perpendiculary to the axis of the tail and is surrounded by 5' also 10" nearly stellar central condensation was easily visible with m2~11. The tail is rather easily visible at least 15' long in PA=75 degrees]
2003 Dec. 24.75 UT:m1=7.9, Dia=10', DC=4,tail ~20' in PA=85 deg...7x50B...Toni Scarmato (Calabria, Italy) [Coma very large and the first side of the ions tail about 10' much brigth. The diffuse tail is clearly visible in 25 cm. The false nucleus is well distinct from the coma estimated m2~10.0, DC=9]
2003 Dec. 24.86 UT: m1=8.2, Dia.=7', DC=3/... 10x50 B... A. Baransky (Bucha, Ukraine)
2003 Dec. 25.72 UT:m1=8.5, Dia.=4', DC=5...11.0cm L (f/7.3, 32x)...Vyacheslav M. Ivanov (Saratov, Russia) [Mist, clouds]
2003 Dec. 25.77 UT: m1=8.1, Dia.=7', DC=4/5, Tail=12' in PA=82 deg...15x80B...Roberto Haver (Frasso Sabino, Rieti, Italy) [ Dec. 25.77 UT: m1=8.1, Dia.=6', DC=5, 10x50B]
2003 Dec. 25.80 UT: m1=8.6, Dia.=5', DC=6, Tail: 18' in PA 75 deg....20.3cm L (63x)...Piotr Guzik (Krosno, Poland)[Dec. 25.81 UT: m1=8.5, Dia=7', DC=6, Tail: 9' in PA 75 deg...10x50B. The comets appearance is nearly the same as yesterday]
2003 Dec. 25.96 UT: m1=8.1, Dia.=7', DC=3/... 10x50 B... A. Baransky (Bucha, Ukraine)
2003 Dec. 26.17 UT: m1=8.2, Dia.=13':, DC=3...10x50 B...Charles S. Morris [Surprisingly large, but very faint coma.]
2003 Dec. 26.27 UT: m1=8.1, Dia.=8', DC=4...20x80 B...Charles S. Morris [Faint outer coma not seen in 20x80 B. Tail not measured, but was about 20'. 2003 Dec. 26.17 UT: m1=8.2, Dia.=13':, DC=3...10x50 B Surprisingly large, but very faint coma. Used 10x50 B earlier when comet was too high for 20x80 B.]
2003 Dec. 26.90 UT: m1=8.3, Dia.=6', DC=5, Tail: 6' in PA 75 deg....10x50B...Piotr Guzik (Krosno, Poland)
2003 Dec 26.96 UT: m1=8.5, Dia=4.5', DC=7 ...25cmL...Mike Linnolt (Greenwich, NY) [Out-Out method. Tycho2+Bessell. Dark sky NELM~6.0, comet tail continues to grow, now 15' in pa 75. Note: Estimate with binoculars not possible due to comet being almost coincident with a 9th mag star.]
2003 Dec. 26.97 UT: m1=8.2, Dia.=6', DC=5, Tail: 0.2 deg.in PA 80 deg...25x100B. Juan Jose Gonzalez (La Frecha - Lena, alt. 450 m, Asturias, North Spain)
2003 Dec. 27.30 UT: m1=8.2, Dia.=9', DC=3/...20x80 B...Charles S. Morris [Tail not measured, but was about 20'.]
2003 Dec. 27.71 UT: m1=8.3, Dia.=6', DC=5, Tail: 9' in PA 75 deg....10x50B...Piotr Guzik (Krosno, Poland)[Easily visible in binoculars. Tail was also noticeable despite moonlight.]
2003 Dec. 27.72 UT: m1=8.5, Dia.=4', DC=6, ...15cm F8 R...A.Diepvens (Balen,Belgium)
2003 Dec. 27.78 UT: m1=8.2, Dia.=6', DC=5...11x80B...Juan Jose Gonzalez (La Foz de Morcin, alt. 370 m, Asturias, North Spain)
2003 Dec. 27.94 UT: m1=8.2, Dia.=7', DC=3 ... 10x50 B... A. Baransky (Bucha, Ukraine)
2003 Dec 27.97 UT: m1=8.6, Dia=4.0', DC=6...25cmL.53x...Mike Linnolt (Greenwich, NY) [In-Out method. Tycho2+Bessell. Some moonlight NELM~5.5, faint tail was lost in the background. Note: Comet again adjacent to a bright star, couldn't estimate with binoculars!]
2003 Dec. 28.30 UT: m1=8.1, Dia.=8', DC=4...20x80 B...Charles S. Morris [Tail not measured, but was about 20'.]
2003 Dec. 28.55 UT: m1=8.7, Dia.=3', DC=6/... 20x100B...Yoshimi Nagai (Nagano, Japan)[Morris Method. Tail 5' in pa 65.]
2003 Dec. 28.79 UT:m1=7.8, Dia=10', DC=4/,tail ~15' in PA=75 deg...7x50B...Toni Scarmato (Calabria, Italy) [Coma large but well condensed. In-out method]
2003 Dec. 28.81 UT: m1=8.6, Dia=2',DC=4...25cm SCT (96x)...Manos Kardasis (Glyfada, Athens, Greece)[light pollution-not round coma]
2003 Dec. 28.83 UT: m1=8.6, Dia=2',DC=5...23.5cm SCT (59x)...Rafael Benavides (Posadas, Cordoba, Spain)[Comet easily observable in Moonlight.]
2003 Dec. 28.87 UT: m1=8.5, Dia.=4', DC=5, 11x80B. Juan Jose Gonzalez (Grandota - Oviedo, alt. 460 m, Asturias, North Spain ) [ Moonlight begins to interfere]
2003 Dec 28.87 UT: m1=8.7, Dia.=3', DC=6, ... no tail...10cm R (20x) . Carlos Labordena(Castellon, Spain).
2003 Dec. 28.97 UT: m1=8.6, Dia.=4.5', DC=5... 20x80 B...Jose Ant. Miravalles (El Fitu, alt. 591 m., Asturias, Spain)[Elongated coma, PA 80 deg]
2003 Dec.29.04 UT: m1=8.7, Dia=3.5', DC=6...20cmSCT, f/10(57x)... Walter R.Robledo (Cordoba,Argentina)[tail~4',PA~80°,difficult to observe for the moonlight]
2003 Dec 30.40 UT: m1=~8.7, Dia.=~4'.5, DC=4/9, 20cm L (37x)...John Drummond, (Gisborne, New Zealand) [My first view of T7… Very low down but easily identifiable as a comet with a reasonably sized coma. Comet's alt is 12* in the NW. Stellar LM =13.2, Diffuse LM = 12.0 - dark country sky].
2003 Dec. 30.88 UT:m1=7.6, Dia=12', DC=5, tail 40' in PA=70 deg....7x50B... (T.Scarmato, Calabria, Italy) [Comet clearly visible. The tail appear brighter since my last observation. In-out method. Slight moonlight]
2003 Dec 31.04 UT: m2=11.3 (m2), Dia.=75", DC = 7/9, ...0.41m SCT/ccd.......P. Clay Sherrod, (ASO - Petit Jean H41) [Tail remains unchanged in PA 72 deg., for about 6' in strong quarter moonlight; very extended coma (75" dia.) with a slight extension or swelling to the south of the nucleus, this perhaps being a looped portion of the tail]
2004 Jan 1.02 UT: m1=8.3, Dia=7', DC=3...16x80B...Phillip J. Creed (Canton, OH) [Significant interference from moonlight; no tail visible]
2004 Jan. 05.97 UT: m1=8.8, Dia=1'.5, DC=4,...14.3cmL f/6 (35x)...Alexandre Amorim(Florianopolis,Brazil)[moonlight interference]
2003 Jan. 06.75 UT:m1=7.8, Dia=7', DC=3/,....7x50B... Toni Scarmato (Calabria, Italy) [Comet with a good degree of condensation. In-out method]
2004 Jan. 6.83 UT: m1=8.3, Dia.=4', DC=5, 25x100B. Juan Jose Gonzalez (Sierra del Aramo, alt.1550 m, Asturias, North Spain) [Moonlight]
2004 Jan. 07.96 UT: m1=8.5, Dia=2', DC=3,...20x80B...Alexandre Amorim(Florianopolis,Brazil)[moonlight interference]
2004 Jan. 8.61 UT:m1=8.3, Dia.=4', DC=5...11.0cm L (f/7.3, 32x)...Vyacheslav M. Ivanov (Saratov, Russia) [Some light pollution, clouds and moonlight]
*2004 Jan. 8.74 UT: m1=8.2, Dia.=5', DC=6...10x50B...Piotr Guzik (Krosno, Poland)[Moonlight, comet only faintly visible.]
*2004 Jan. 9.71 UT: m1=8.0:, Dia.=8', DC=5, Tail: 6' in PA 70 deg....10x50B...Piotr Guzik (Krosno, Poland)
2004 Jan. 9.78 UT: m1=7.4, Dia.=13', DC=5, Tail: 0.2 deg. in PA 80 deg...7x50B...Juan Jose Gonzalez (Felguera de Riosa, alt.330 m, Asturias, North Spain) [Before moonrise]
2004 Jan. 10.62 UT:m1=8.0, Dia.=5', DC=5...11.0cm L (f/7.3, 32x)...Vyacheslav M. Ivanov (Saratov, Russia) [The comet continues to brighten]
2004 Jan. 10.78 UT: m1= 8.3, Dia.=4', DC=6... no tail...8cm B (11x)...Carlos Labordena (Castellon, Spain).
*2004 Jan. 11.69 UT: m1=8.0, Dia.=8', DC=5, Tail: 25' in PA 70 deg....20.3cm L (63x)...Piotr Guzik (Krosno, Poland)
2003 Jan. 11.71 UT:m1=7.4, Dia=20', DC=5, tail 40' deg in PA 55 deg....7x50B... Toni Scarmato (Calabria, Italy) [2003 Jan. 11.71 UT: m1=7.6, Dia=16', DC=6, tail=1.2 deg in PA 55 deg and 30' (ions) in PA 50 deg...25 cm L(48x) Comet clearly in activity in 25 cm show a large coma and a false nucleus m2=8.9, dia=2'. The ions tail long about 30' seem separated from the diffuse tail. In-out method with 7x50, Out-Out method with 25 cm L]
2004 Jan. 11.80 UT: m1=7.8, Dia.=10', DC=4... 20x80 B...Jose Ant. Miravalles (Enu-Amieva, alt. 350 m., Asturias, Spain)[Elongated coma]
2004 Jan. 11.80 UT: m1=7.5, Dia.=13', DC=5, 7x50B. Juan Jose Gonzalez (Sierra del Aramo, alt.1240 m, Asturias, North Spain) [ Tail: 0.2 deg. in PA 80 deg, 11x80B].
2004 Jan. 11.98 UT: m1=9.0, Dia=2', DC=5...20x80B...Alexandre Amorim(Florianopolis,Brazil)
2004 Jan. 13.81 UT: m1=8.0, Dia=6',DC=5...23.5cm SCT (59x)...Rafael Benavides (Posadas, Cordoba, Spain) [tail 8' towards PA 65 deg]
2004 Jan. 13.99 UT: m1=8.3, Dia=2', DC=3,...20x80B...Alexandre Amorim(Florianopolis,Brazil)[thin nebulosity]
2004 Jan, 14.14 UT: m1=8.0, Dia.=8', DC=4-5, Tail ~1 deg....20x80 B...Charles S. Morris (Fillmore, CA) [The comet's brightness hasn't changed significantly in about two weeks. The observed tail is extremely faint.]
2004 Jan. 14.80 UT: m1=7.4, Dia.=13', DC=5...7x50B & 11x80B....Juan Jose Gonzalez (Sierra del Aramo, alt.700 m, Asturias, North Spain) [14.82 UT: m1=7.5, Dia.=8', DC=5, Tail: 0.6 deg. in PA 70 deg, 25x100B. Coma significantly enhanced through Swan band filter in 25x100 B ].
2004 Jan. 14.82 UT: m1=7.5, Dia.=12', DC=5, Tail: 20' in PA 70 deg....10x50B...Piotr Guzik (Krosno, Poland)[Comet is very large.]
2004 Jan 15.05 UT: m1=7.7, Dia.=2.2', DC = 7/9...0.41m SCT/ccd...P. Clay Sherrod, (ASO - Petit Jean H41) [Beautiful tapering tail in PA 66 degree for at least 8' length; m1 mag. determined via 10cm Refr.; coma is very veiled and transparent with strong nucleus (*m2=12.1) but NOTE that nucleus m2 has faded dramatically as comet is developing; secondary tail noted by others not imaged in 90 sec. to saturation]
2004 Jan. 15.50 UT: m1=7.6, Dia.=3.7', DC=6... 25.4cm T f/6.3 (32x) ...Seiichi Yoshida (Ibaraki, Japan)
2004 Jan. 15.83 UT: m1=7.9, Dia=5', DC=3 ...10x70B... (Fabio Zucconi, Lodi, Italy) [In-out method]
2002 Jan. 16.22 UT: m1=7.9, Dia.=8', DC=4, Tail ~1 deg....20x80 B...Charles S. Morris (Fillmore, CA) [Comet has what looks like a wide fan tail spanning ~45-50 degrees. The tail is most obvious at the two edges. The tail is longer (> 1 deg.) on the northern edge and much shorter (<1 deg.) on the southern edge.]
2004 Jan. 16.79 UT: m1=7.4, Dia.=11', DC=5...7x50B...Juan Jose Gonzalez (Cordal de las Segadas, alt.811 m, Asturias, North Spain) [ 16.80 UT: m1=7.4, Dia.=11', DC=5, Tail: 0.2 deg. in PA 70 deg, 11x80B ]
2004 Jan 16.80 UT: m1= 8.0, Dia.=5', DC=6, ... no tail...8cm B (11x) . Carlos Labordena(Castellon, Spain).
2004 Jan. 16.81 UT: m1=7.9, Dia.5`, DC=5...10x50B...Kolyo Dankov(Sofia,Bulgaria)
2004 Jan. 16.83 UT: m1=7.9, Dia.=7', DC=4s... 10x50 B... A. Baransky (Bucha, Ukraine)
*2004 Jan. 16.91 UT: m1=7.8,Dia=9', DC=5,...7x50 B...Silvio Klausnitzer (Pohrsdorf, Germany) [Diameter had growed significantly since december.]
2004 Jan. 17.73 UT: m1=8.3, Dia=3',DC=3...25cm SCT (96x)...Manos Kardasis (Glyfada, Athens, Greece)[light pollution]
2004 Jan. 17.75 UT: m1=7.9, Dia.=10', DC=4...7x50B...Timo Karhula (Virsbo, Sweden)
2004 Jan 17.82 UT: m1= 7.9, Dia.=5', DC=5, Tail= 10' in PA= 95 deg ...8cm B (11x)...Carlos Labordena(Castellon, Spain).
2004 Jan 18.22 UT: m1=8.0, Dia=6', DC=5, tail 10' in pa 50 ...37cmL (60x)...Mike Linnolt (Dillingham, HI) [Out-Out method. Tycho2+Bessell. Dark sky NELM~6.2, but some clouds interference.]
2004 Jan. 18.65 UT:m1=7.8, Dia.=5', DC=5...11.0cm L (f/7.3, 32x)...Vyacheslav M. Ivanov (Saratov, Russia) [Sigdwick method used].
2004 Jan. 18.81 UT: m1=7.4, Dia.=11', DC=5...7x50B...Juan Jose Gonzalez (Sierra del Aramo, alt.700 m, Asturias, North Spain) [ 18.82 UT: Tail: 0.2 deg. in PA 70 deg, 11x80B ]
2004 Jan. 18.82 UT: m1=7.7, Dia=5',DC=3...8x56 B...Rafael Benavides (Posadas, Cordoba, Spain) [tail 15' towards PA 60 deg, 23.5cm SCT]
2004 Jan 18.82 UT: m1= 8.0, Dia.=5', DC=5, ... no tail...8cm B (11x) . Carlos Labordena(Castellon, Spain).
2004 Jan. 19.74 UT:m1=7.2, Dia=20', DC=6, tail 1 deg in PA 50 deg....7x50B... Toni Scarmato (Calabria, Italy)[Comet brighter since my last observation. Particularly the central condensation is easy visible in binocular and the coma is again very large. Also the tail seem less diffuse. Out-Out Method]
2004 Jan. 19.82 UT: m1=7.8, Dia=5', DC=3 ...10x70B...Fabio Zucconi (Lodi, Italy) [In-out method]
2004 Jan. 19.83 UT: m1=7.5, Dia.=11', DC=5, 7x50B & 11x80B. Juan Jose Gonzalez ( Sierra del Aramo, alt.1010 m, Asturias, North Spain) [ 19.84 UT: m1=7.6, Dia.=11', DC=6, Tail: 0.4 deg. in PA 70 deg, 25x100B ]
2004 Jan 20.05 UT: m1=7.3, Dia.=2.0', DC = 7/9, ...0.41m SCT/ccd...P. Clay Sherrod (ASO - Petit Jean H41) [Tail longer (12'ccd), filling ccd field in PA 65 deg.; very uniform and straight, tapering gradually; coma size and morphology consistent with before] {Not obvious if this is a visual or CCD magnitude...csm]
2004 Jan. 20.75 UT:m1=8.0,Dia.=10',DC=0...20x80 B...Sandro Baroni(Milan,Italy)
2004 Jan. 20.80 UT:m1=7.3, Dia=14', DC=6/, tail 1 deg in PA 50 deg....7x50B... Toni Scarmato (Calabria, Italy) [Central condensation apparently more condensed. Out-Out Method]
2004 Jan. 20.16 UT: m1=7.8, Dia.=8', DC=4...Charles S. Morris (Fillmore, CA) [Tail is similar to previous observation.]
2004 Jan. 20.82 UT: m1=7.8, Dia=6', DC=4 ...10x70B...Fabio Zucconi (Lodi, Italy) [In-out method, no tail visible]
2004 Jan. 16.91 UT: m1=7.8,Dia=9', DC=5,...7x50 B...Silvio Klausnitzer (Pohrsdorf, Germany) [Diameter had growed significantly since december.]
2004 Jan. 20.75 UT:m1=8.0,Dia.=10',DC=0...20x80 B...Sandro Baroni(Milan,Italy)
2004 Jan. 20.80 UT:m1=7.3, Dia=14', DC=6/, tail 1 deg in PA 50 deg....7x50B... Toni Scarmato (Calabria, Italy) [Central condensation apparently more condensed. Out-Out Method]
2004 Jan 21.00 UT: m1=7.6, Dia=12', DC=5...10x50B...Phillip J. Creed (Wilmot, OH) [Hint of NE-pointing tail suspected in 16x80B. Temp -12C during observation]
2004 Jan. 21.75 UT: m1=8.0:, dia=4’, DC=3/4…20cmSCT (62x)…Claudio Pra (Alleghe, Italy)
2004 Jan. 21.80 UT: m1=7.5, Dia.=10', DC=5, Tail: 0.2 deg. in PA 70 deg...7x50B...Juan Jose Gonzalez ( Sierra del Aramo, alt.980 m, Asturias, North Spain) [ 21.82 UT: m1=7.7, Dia.=9', DC=6, Tail: 0.3 deg. in PA 70 deg, 25x100B ]
2004 Jan 21.81 UT: m1= 7.7, Dia.=5', DC=5... no tail...11x80B...Carlos Labordena(Castellon, Spain).
2004 Jan. 21.81 UT: m1=7.9, Dia=5',DC=4...23.5cm SCT (59x)...Rafael Benavides (Posadas, Cordoba, Spain) [tail 15' towards PA 61 deg] [21.83 UT: m1=7.6, Dia=5';DC=3...8x56B]
2004 Jan. 21.83 UT: m1=7.3, Dia.=12', DC=5...6x30B....J.Carvajal (Madrid, Spain)
2004 Jan. 22.19 UT: m1=7.1, dia.=17', DC=3...10x50B...Charles S. Morris (Fillmore, CA) [22.20 UT: m1=7.5, dia.=8', DC=7, tail: 2.5 deg...20x80B. Note the DC in the 20x80 B...the increase in brightness and DC strongly suggests an outburst. The tail was also much more obvious.]
2004 Jan. 22.72 UT:m1=7.2, Dia=16', DC=6, tail about 1 deg in PA 45 deg....7x50B... Toni Scarmato (Calabria, Italy)[The coma continue to be very large and the central condensation appear much marked. Strong wind. Out-Out Method]
2004 Jan. 22.84 UT: m1=7.3, Dia.=8', DC=4... 20x110B... Vitali Nevski (Vitebsk, Belarus) [30cm reflektor: tail 15' in PA=70deg.]
*2004 Jan 23.48 UT: m1=8.0, Dia.=4', DC=5...25x100mm B...Michael Mattiazzo (Clare Valley, South Australia)[comet at 8 degrees elevation. Comet exhibits a bright starlike nucleus surrounded by a large coma, well enhanced by a swan band filter]
*2004 Jan. 23.49 UT: m1=7.4, Dia.=7.5', DC=4... 25.4cm T f/6.3 (32x) ...Seiichi Yoshida (Ibaraki, Japan) [Very diffused. Much different from that until December.]
*2004 Jan. 23.77 UT: m1=7.2, Dia=13', DC=7, tail about 1,2 deg in PA 45 deg....7x50B... Toni Scarmato (Calabria, Italy) [Very nice comet. Clear evolution of the coma, since my last observation, with the outer side less extended and the inner side more large. Out-Out method]
*2003 Jan. 23.77 UT: m1=8.2, Dia=3',DC=3...25cm SCT (96x)...Manos Kardasis (Glyfada, Athens, Greece)[light-pollution]
*2004 Jan. 23.84 UT: m1=7.7 mag , Dia=5&acute;, DC=4...25x100 B…….Martin Adamovsky , (Rokycany , Czech Rebublic ) [ no tail , Morris metod used , NELM=5.8 mag , extreme temperature -18° ]
*2004 Jan. 24.12 UT: m1=6.9, dia.=17', DC=4...10x50B...Charles S. Morris (Fillmore, CA) [24.12 UT: m1=7.3, dia.=8', DC=6-7, tail: 2.5 deg...20x80B]
*2004 Jan. 24.64 UT: m1=7.4, Dia.=5', DC=5...11.0cm L (f/7.3, 32x)...Vyacheslav M. Ivanov (Saratov, Russia) [Comet moved near 10 mag star].
*2004 Jan. 24.79 UT: m1=7.0, Dia=14', DC=7, tail 1.5 deg in PA 45 deg....7x50B... Toni Scarmato (Calabria, Italy) [Comet in continue evolution show a large coma much condensed and the first degree of the tail brighter since my last observation. Out-Out method]
*2004 Jan. 24.81 UT: m1=7.6, Dia=5',DC=4...23.5cm SCT (59x)...Rafael Benavides (Posadas, Cordoba, Spain) [tail 20' towards PA 66 deg] [24.82 UT: m1=7.4, Dia=8';DC=3...8x56B]
*2004 Jan 24.83 UT: m1= 7.7, Dia.=5', DC=6, Tail= 10' in PA= 85 deg ...11x80 B... Carlos Labordena(Castellon, Spain).
*2004 Jan. 25.42 UT: m1=7.4, Dia.=6', DC=5... 11x80B...Yoshimi Nagai (Nagano, Japan)[Morris Method. In 20x100B, tail 10' in pa 60.]
*2004 Jan. 25.65 UT: m1=7.5, Dia.=4', DC=5...11.0cm L (f/7.3, 32x)...Vyacheslav M. Ivanov (Saratov, Russia) [Moon present].
*2004 Jan. 25.73 UT: m1=7.0, Dia.=10', DC=3...7x50B...Timo Karhula (Virsbo,Sweden) [Comet also seen with 8x21 binoculars. It was still not particularly easy due to light from the nearby crescent moon and ice crystals in the air. DC=6 as seen with 18x50 IS binoculars. Temperature -15 C.]
*2004 Jan. 25.92 UT: m1=7.5, Dia.=10', DC=5..7x50B & 11x80B...Juan Jose Gonzalez (Sierra del Aramo, alt.700 m, Asturias, North Spain) [ 25.93 UT: m1=7.7, Dia.=8', DC=6, Tail: 0.2 deg. in PA 70 deg, 25x100B. After moonset ]
*2004 Jan.26.06 UT: m1=9.0 Dia=3.5', DC = 7, Tail=5&acute;in PA= 130 deg.... 20cm SCT, f/10 (57x)... Walter R.Robledo (Cordoba, Argentina)[out- out method]
*2004 Jan 26.07 UT: m1=7.5, Dia.=2.2', DC = 7/9, ...20x120mm B.......P. Clay Sherrod, (ASO - Petit Jean H41) [Comet imaged for astrometric purposes but conditions very poor; m1 via 20 x 120 binoculars; *m2=10.3ccd; tail strong in PA 62 deg. for at least 14' via ccd; inner coma appears to becoming brighter and possibly more concentrated, measured inner coma = 52" x 62" with taper toward tail] |
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千斤顶
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