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NGC7331 & STEPHAN'S QUINTET (Peg) October 4 (L) and October 5 (RGB) 2024 25cm Newton f/D=5.7 FTF2020M CCD with Edmund Optics RGB-filters Exposure: L 34x120 + 48x150 sec RGB 24x150sec each Brightest stars 'thinned' FoV: 0.64x0.76 degr |
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M63 SUNFLOWER GALAXY (CVn) April 2023 (L) and May 2024 (RGB) 25cm Newton f/D=5.7 FTT1010-M CCD with Edmund Optics RGB-filters Exposure: L 48x120sec RGB 35x120sec FoV: 0.43x0.29 degr (click here for earlier attempts: 2001 and 1998) |
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M101 & SN2023ixf (UMa) 17&24 May 2023 25cm Newton f/D=5.7 FTT1010M CCD with 17 May: Lum 15*120sec 24 May: Lum 30*120sec 25 May: RGB 30*120sec FoV: 0.48x0.44 deg |
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Proper motion of stars in Hickson44 galaxy field Comparison 2012 / 2022 images 25cm Newton f/D=5.7 FTT1010M CCD with RGB-filter wheel FoV: 0.28x0.28 deg |
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NGC2903, 26&28 February 2022 (Leo) 25cm Newton f/D=5.7 FTT1010M CCD with RGB-filter wheel Lum.: 83x120sec RGB: 24x120sec FoV: 0.38x0.38 deg |
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M105, NGC3384,3389 (Leo) Feb. 28 (RGB) and 4&7 March, 2022 25cm Newton f/D=5.7 FTT1010M CCD with RGB-filter wheel Lum.: 111x120sec RGB: 30x120sec FoV: 0.38x0.38 deg |
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M90 en IC3583 (Vir), 7&8 March 2022 25cm Newton f/D=5.7 FTT1010M CCD with RGB-filter wheel Lum.: 94x120sec RGB: 30x120sec FoV: 0.38x0.38 deg |
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M31, Andromeda nebula december 2021 FTF2020M CCD with RGB-filter wheel 300mm Tele\lens, F#4 op fork-montering. Lum.: 48x2 min RGB: 18x3 min FoV: 0.48x0.48 deg |
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M58 and Siamese twins (Vir) NGC4567 & NGC4568 (Vir) May 3, 2011 (Reprocessed dec 2024) 25cm Newton f/D=5.7 FTF2020-M CCD with RGB-filter wheel Lum.: 85x120sec RGB: 26x120sec binned FoV: 0.88x0.74degr. North=Left |
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M106 and NGC4217 (CVn) May 1 and 2, 2011 (Reprocessed dec 2024) 25cm Newton f/D=5.7 FTF2020-M CCD with RGB-filter wheel Lum.: 118x100sec RGB: 21x100sec binned FoV: 0.91x0.74 degr |
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Hickson 44 group (Leo) April 16, 2012 and April 4, 2011 25cm Newton f/D=5.7 FTT1010-M CCD with RGB-filterwheel Lum.: 87x100sec (2011) RGB: 15x120sec binned (2012) FoV: 0.4x0.3degr |
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M95 with SN2012aw March 28, 2012 25cm Newton f/D=5.7 FTT1010-M CCD Lum.: 37x120sec RGB (2007):14x100sec binned FoV: 0.13x0.13degr |
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NGC2683 8,11 and 17 april 2010 (Reprocessed dec 2024) 25cm Newton f/D=5.7 FTT1010-M CCD with RGB filter wheel Lum.: 58x2 min; RGB: 12x2 min FoV: 0.39x0.32gr |
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NGC3198 6 and 9 april 2010 (Reprocessed dec 2024) 25cm Newton f/D=5.7 FTT1010-M CCD with RGB filter wheel Lum.: 79x90 sec; RGB: 16x120sec FoV: 0.28x0.28degr |
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NGC4490 and 4485 (CVn) 20 apr/22 may 2009 (Reprocessed dec 2024) 25cm Newton f/D=5.7 FTT1010-M CCD with RGB filter wheel Lum.: 73x90 sec; RGB: 18x120sec FoV: 0.41x0.34degr |
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NGC3184 20/22 april 2009 (Reprocessed dec 2024) 25cm Newton f/D=5.7 FTT1010-M CCD with RGB filter wheel Lum.: 75x90 sec; RGB: 12x120sec FoV: 0.28x0.28degr |
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NGC5985, 5982, 5981 Triplet in Draco 10 may 2008 25cm Newton f/D=5.7 FTT1010-M CCD Exposure: 20x150sec FoV: 0.40x0.23 degr |
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NGC4236 in Draco 10 may 2008 25cm Newton f/D=5.7 FTT1010-M CCD Exposure: 28x150sec FoV: 0.4x0.4 degr |
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NGC5033 & NGC5005 (CVn) 6-8 may 2008 (Reprocessed dec 2024) 25cm Newton f/D=5.7 FTF2020-M CCD with RGB-filterwheel RGB: 16x120 (binned); L: 79x120 FoV: 0.89x0.81gr |
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NGC4631 & NGC4656 (CVn) 4,5 may 2008 (Reprocessed dec 2024) 25cm Newton f/D=5.7 FTF2020-M CCD with RGB-filterwheel RGB: 14x120 (binned); L: 49x120 FoV: 0.85x0.85gr |
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NGC4725, 4712 and 4747 8 and 16 april 2007 25cm Newton, f/D=5.7 FTF2020-M CCD RGB-filterwheel L: 38x120sec RGB: 12x120sec binned Field of View: 0.86x0.65 degr. |
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M96 and M95 11 march and 7 april 2007 25cm Newton, f/D=5.7 FTF2020-M CCD RGB-filterwheel L: 55x90sec RGB: 12x100sec binned Field of View: 0.87x0.67 degr. |
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NGC3521 2 april 2006 25cm Newton, f/D=5.7 and FTT1010-M CCD Exposure: LRGB 89/7/9/11*70 sec Field of View: 0.7x0.5 gr. |
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M88 6/11 may 2005 25cm Newton, f/D=5.7 FTT1010-M CCD, RGB-filters L: 32x90sec, RGB: 12x120sec Processing: unsharp masked Field of View: 0.24x0.24 degr. |
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M66, M65 en NGC3628 11/27 april 2005 25cm Newton, f/D=5.7 FTF2020-M CCD, RGB-filters L: 52x90sec, RGB: 14x120sec Processing: unsharp masked Field of View: 0.70x0.85 degr. |
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M99 2 april 2005 25cm Newton f=1455mm, f/D=5.7 FTT1010-M CCD in prime focus Exposure: 52x90sec Processing: unsharp masked |
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NGC2903 1 april 2005 25cm Newton f=1455mm, f/D=5.7 FTT1010-M CCD in prime focus Exposure: 56x60sec Processing: unsharp masked |
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25cm Newton prime focus, f/D=5.7 FTF2020-M, MYC-filters and H-alpha Each color 20x90sec Lum.= M+Y+C+ b/w-image 2 june 2002 R-component = H-alpha image 30x120sec |
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25cm Newton prime focus, f/D=5.7 FTT1010-M, MYC-filter wheel Each color 20x90sec Lum.= M+Y+C + 32x90sec without filters |
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25cm Newton prime focus, f/D=5.7 FTT1010-M Stack of 24 exposures of 100sec Slightly unsharp masked |
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13 april 2004 25cm Newton, f/D=5.7 FTT1010-M Stack of 37 exposures of 50sec Slightly unsharp masked |
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25cm Newton, f/D=5.7 FTF2020-M, binned Stack of 31 exposures of 120sec Slightly unsharp masked |
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23 October 2003 FTF2020-M CCD prime focus 25cm Newton f/D=5.7 Colour filter wheel with MYC-filters Exposure: Each colour 18x100 sec. F.O.V.: 0.95x0.95 degree |
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OPEN CLUSTER NGC6939 23 October 2003 (Reprocessed 2024. Old version here.) FTF2020-M CCD in binning mode prime focus 25cm Newton f/D=5.7 Colour filter wheel with MYC-filters Exposure: Each colour 24x100 sec. F.O.V.: 0.76x0.90 degree |
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4 May 2003 FTT1010-M CCD (1kx1k) Prime focus 25cm Newton Exposure: 22x50sec |
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25cm Newton, f/D=5.7, MYC-colour filter wheel FTF2020-M (M82&M82, binned) and FTT1010-M (M82, non-binned) M82&M81: MYC 12x120sec and L=34x120sec M82: Each colour 10x100sec Processing: Luminance = unsharp masked Y-image |
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FTF2020-M CCD, binned 25cm Newton, f/D=5.7 Sum of 37 exposures of 90 sec Background subtracted |
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25cm Newton, f/D=5.7 with FT1010-M Sum of 31 exposures of 2 minutes Bad seeing. Background subtracted |
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22 March 2002 25cm Newton (f/D=5.7) and FTT1010-M 32 exposures of 100sec (at half moon!) Background subtracted; image sharpened |
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25cm Newton (f/D=5.7) and FTT1010-M 26 exposures of 100sec (at half moon!) Background subtracted; image sharpened |
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25cm Newton, f/D=5.7, FTT1010-M MYC-colour filter wheel 6 april, 37x100sec for intensity component 7 april, M:15, Y:12, C:14x2 min. for color See description of MYC-processing. Note the small asteroide (upper middle) |
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Scope: 25cm Newton at f/D=5.7 CCD: FTT1010-M with MYC-filter wheel 13x100sec M, 11x100sec Y, 8x100sec C, 36x100sec b/w Processing:The intensity component of the colour image is exchanged for the b/w image which is sharpened using an unsharp mask. |
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M33 and NGC925 (13 Dec. 2001) Scope: 25cm Newton, f/D=5.7 CCD: FTT1010-M Exposure: M33 Sum of 40x60sec NGC925 Sum of 31x60sec Processing: Background removed |
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Telelens f=300mm, Diaphragm: 5.5 CCD: FTT1010-M Exposure: sum of 17x120sec images Processing: Background removed |
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M51 Whirlpool Date: April 2001 Scope: 25cm Newton, f/D=5.7 CCD: FT800 in prime focus Exposure: Sum of 24x120 sec Remark: Slightly unsharp masked |
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NGC4565 Date: April 2001 Scope: 25cm Newton f/D=5.7 CCD: FT800 in prime focus Illum.: Sum of 19 images of 120 sec |
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M63 Date: May 2001 Scope: 25cm Newton at f/D=5.7 CCD: FT800 in prime focus Exp.: Sum of 27 images of 120 sec Remarks: Unsharp masked |
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M64 Black-eye Nebula Date: April 2001 Scope: 25cm Newton, f/D=5.7 CCD: FT800 in prime focus Exp.: Sum of 23 images of 120 sec Remarks: Unsharp masked |
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NGC4631 and NGC4627 (smaller) Date: May 1998 Scope: 25cm Newton f/D=5.7 CCD: FT800 in prime focus Illum.: Sum of 12 images of 90 sec |
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M100 Date: 2 April 2002 Scope: 25cm Newton f/D=5.7 CCD: FTT1010-M in prime focus Illum.: Sum of 27 images of 100 sec |
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NGC7331 Date: 22 November 1998 Scope: 25cm Newton f/D=5.7 CCD: FT800 in prime focus Illum.: Sum of 34 images of 90 sec Remarks: Unsharp masked |
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NCG2903 Date: 16 April 1999 Scope: 25cm Newton f/D=5.7 CCD: FT800 in prime focus Illum.: Sum of 15 images of 90 sec Remarks: unsharp masked |
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M66 and M65 Date: 6/7 april 2002 Scope: 25cm Newton at f/D=5.7 CCD: FTT1010 with MYC-filterset Exp.: 15x120sec each colour Processing: See MYC to RGB |
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M63, M94, M106 and the effect of unsharp masking. Date: mei 1998 Scope: 25cm Newton f/D=5.7 CCD: FT800 in prime focus |