57P/du Toit-Neujmin-Delporte

57P/du Toit-Neujmin-Delporte
Reported observations:
2015 Oct. 10.65 UT: m1=15.3 CCD, Dia.=0.8′, Tail=&1.0′ in PA: 247 deg ... [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Sep. 13.06 UT: m1=15.1, Dia.=0.6′, DC=2 ... 60.3-cm L (244x)... Sandor Szabo (Sopron, Hungary)
2015 Aug. 19.99 UT: m1=16.4: CCD, Dia.=&0.2′ ... 0.08-m f/7.5 refractor + CCD... A. Novichonok, T. Prystavski (Konchezero Stn., Republic of Karelia, Russia)
2015 Aug. 16.96 UT: m1=15.7: CCD, Dia.=0.4′ ... 0.07-m f/6 refractor + CCD... A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 Sheltozero Stn., Russia)
2015 July 25.14 UT: m1=15.2 CCD, Dia.=0.7′, Tail= 3.4′ in PA: 246 deg ... [T16] 0.15-m f/7.3 refractor + CCD... A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 July 21.99 UT: m1=15.3, Dia.=0.3′, DC=3 ... 60.3-cm L (305x)... Sandor Szabo (Sopron, Hungary)
2015 July 12.00 UT: m1=14.6, Dia.=1.0′, DC=4 ... 35-cm L (178x)... Jakub Černý (Zachotin, Czech Republic)
2015 Apr. 24.78 UT: m1=17.2: CCD, Dia.=0.2′, Tail= 0.4′ in PA: 244 deg ... [T17] 0.43-m f/6.8 astrograph + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia)
2015 Apr. 01.80 UT: m1=16.6: CCD, Dia.=0.25′ ... [T17] 0.43-m f/6.8 astrograph + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia)
2002 Sep. 23.06 UT: m1=16.3, Dia.=12", DC=7/9 ... 0.31-m SCT/CCD ... P. Clay Sherrod, (ASO, Conway) [Comet is now quite faint with a very condensed nucleus (*m2= 17.8); still very compact with uniform brightness except near coma center.]
2002 Sep. 12.22 UT: m1=15.8, Dia.=12", DC=2/9 ... 0.31-m SCT/CCD ... P. Clay Sherrod, (ASO, Conway) [The comet is increasingly difficult and more diffuse; surface brightness low with no condensation; slight haze]
2002 Sep. 10.21 UT: m1=15.3, Dia.=15", DC=4/9 ... 0.31-m SCT/CCD ... P. Clay Sherrod, (ASO, Conway) [Comet grows increasingly difficult; faint and diffuse against a hazy sky tonight; no clear condensation]
2002 Sep. 06.25 UT: m1=15.3, Dia.=13", DC=2/9 ... 0.31-m SCT/CCD ... P. Clay Sherrod, ASO, Conway [Despite small size and magnitude this is a difficult object, with coma seemingly nearly transparent]
2002 Sep. 05.212 UT: m1=15.6, Dia.=12", DC=4/9 ... 0.31-m SCT/CCD ... P. Clay Sherrod (ASO, Conway) [Comet becoming fainter nightly and more diffuse; very slight central condensation seen; coma very round and uniform]
2002 July 31.208 UT: m1=14.76 CCD, Dia.=10", DC=5/9 ... 0.3-m SCT/CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [round and uniformly diffuse; no structure seen, nor nuclear condensation, high clouds and haze]
2002 July 30.189 UT: m1=14.63 CCD, Dia.=15", DC=5/9 ... 0.3-m SCT /CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [m2= 15.19 CCD, a most unusual sight, comet is considerably irregular with strong central condensation at this time, coma perimeter is not oval nor round, but highly irregular]
2002 July 29.206 UT: m1=14.80 CCD, Dia.=11", DC=3/9 ... 0.3-m SCT /CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [comet shows no sign of deteriorating from recent breakup; still strongly compacted with little sign of m2, uniformly round with no irregularities nor transient patches]
2002 July 12.361 UT: m1=15.77 CCD, Dia.=7", DC=3/9 ... 0.3-m SCT /CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [comet is faint, quite diffuse, no central condensation; conditions poor with encroaching clouds]
2002 July 09.344 UT: m1=15.44 CCD, Dia.=12", DC=4/9 ... 0.3-mSCT/CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [comet appears fainter, but imaged in fairly bright skies. short (14" length) tail in PA 165 deg]
2002 July 07.309 UT: m1=15.27 CCD, Dia.=14", DC=4/9 ... 0.3-m SCT/ CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [comet is fairly large and easy with a suspected extension or tail in PA 205 deg, some 12" long, very clear skies to low south]
2002 June 30.250 UT: m1=16.35 CCD, Dia.=4", DC=3/9 ... 0.3-m SCT /CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [comet appears visibly fainter tonight than previously, perhaps conditions. Moderate Light pollution, heavy haze and strong gibbous moon]
2002 June 21.353 UT: m1=16.02 CCD, Dia.=8", DC=2/9 ... 0.3-m SCT /CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [short, distinct fan-shaped extension in PA 160d, 8-10" length. Moderate Light pollution, comet quite faint but clearly nebulous]
2002 June 17.361 UT: m1=15.18 CCD, Dia.=6", DC=2/9 ... 0.3-m SCT/CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [very faint, but clearly cometary in nature, diffuse and round, fair conditions with much moisture]
2002 June 06.323 UT: m1=15.97 CCD, Dia.=19", DC=5/9 ... 0.3-m SCT/CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [very distinct nucleus @ m = 17.6, comet is very large and round, quite transparent]
2002 May  23.379 UT: m1=15.97 CCD, Dia.=6", DC=2/9 ... 0.3-m SCT /CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [comet very faint, but clearly diffuse in stellar field, round, no detail]
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